1 //===-- AutoUpgrade.cpp - Implement auto-upgrade helper functions ---------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 //
9 // This file implements the auto-upgrade helper functions.
10 // This is where deprecated IR intrinsics and other IR features are updated to
11 // current specifications.
12 //
13 //===----------------------------------------------------------------------===//
14
15 #include "llvm/IR/AutoUpgrade.h"
16 #include "llvm/ADT/StringRef.h"
17 #include "llvm/ADT/StringSwitch.h"
18 #include "llvm/BinaryFormat/Dwarf.h"
19 #include "llvm/IR/AttributeMask.h"
20 #include "llvm/IR/Constants.h"
21 #include "llvm/IR/DebugInfo.h"
22 #include "llvm/IR/DebugInfoMetadata.h"
23 #include "llvm/IR/DiagnosticInfo.h"
24 #include "llvm/IR/Function.h"
25 #include "llvm/IR/IRBuilder.h"
26 #include "llvm/IR/InstVisitor.h"
27 #include "llvm/IR/Instruction.h"
28 #include "llvm/IR/IntrinsicInst.h"
29 #include "llvm/IR/Intrinsics.h"
30 #include "llvm/IR/IntrinsicsAArch64.h"
31 #include "llvm/IR/IntrinsicsARM.h"
32 #include "llvm/IR/IntrinsicsNVPTX.h"
33 #include "llvm/IR/IntrinsicsRISCV.h"
34 #include "llvm/IR/IntrinsicsWebAssembly.h"
35 #include "llvm/IR/IntrinsicsX86.h"
36 #include "llvm/IR/LLVMContext.h"
37 #include "llvm/IR/Metadata.h"
38 #include "llvm/IR/Module.h"
39 #include "llvm/IR/Verifier.h"
40 #include "llvm/Support/CommandLine.h"
41 #include "llvm/Support/ErrorHandling.h"
42 #include "llvm/Support/Regex.h"
43 #include "llvm/TargetParser/Triple.h"
44 #include <cstring>
45
46 using namespace llvm;
47
48 static cl::opt<bool>
49 DisableAutoUpgradeDebugInfo("disable-auto-upgrade-debug-info",
50 cl::desc("Disable autoupgrade of debug info"));
51
rename(GlobalValue * GV)52 static void rename(GlobalValue *GV) { GV->setName(GV->getName() + ".old"); }
53
54 // Upgrade the declarations of the SSE4.1 ptest intrinsics whose arguments have
55 // changed their type from v4f32 to v2i64.
upgradePTESTIntrinsic(Function * F,Intrinsic::ID IID,Function * & NewFn)56 static bool upgradePTESTIntrinsic(Function *F, Intrinsic::ID IID,
57 Function *&NewFn) {
58 // Check whether this is an old version of the function, which received
59 // v4f32 arguments.
60 Type *Arg0Type = F->getFunctionType()->getParamType(0);
61 if (Arg0Type != FixedVectorType::get(Type::getFloatTy(F->getContext()), 4))
62 return false;
63
64 // Yes, it's old, replace it with new version.
65 rename(F);
66 NewFn = Intrinsic::getDeclaration(F->getParent(), IID);
67 return true;
68 }
69
70 // Upgrade the declarations of intrinsic functions whose 8-bit immediate mask
71 // arguments have changed their type from i32 to i8.
upgradeX86IntrinsicsWith8BitMask(Function * F,Intrinsic::ID IID,Function * & NewFn)72 static bool upgradeX86IntrinsicsWith8BitMask(Function *F, Intrinsic::ID IID,
73 Function *&NewFn) {
74 // Check that the last argument is an i32.
75 Type *LastArgType = F->getFunctionType()->getParamType(
76 F->getFunctionType()->getNumParams() - 1);
77 if (!LastArgType->isIntegerTy(32))
78 return false;
79
80 // Move this function aside and map down.
81 rename(F);
82 NewFn = Intrinsic::getDeclaration(F->getParent(), IID);
83 return true;
84 }
85
86 // Upgrade the declaration of fp compare intrinsics that change return type
87 // from scalar to vXi1 mask.
upgradeX86MaskedFPCompare(Function * F,Intrinsic::ID IID,Function * & NewFn)88 static bool upgradeX86MaskedFPCompare(Function *F, Intrinsic::ID IID,
89 Function *&NewFn) {
90 // Check if the return type is a vector.
91 if (F->getReturnType()->isVectorTy())
92 return false;
93
94 rename(F);
95 NewFn = Intrinsic::getDeclaration(F->getParent(), IID);
96 return true;
97 }
98
upgradeX86BF16Intrinsic(Function * F,Intrinsic::ID IID,Function * & NewFn)99 static bool upgradeX86BF16Intrinsic(Function *F, Intrinsic::ID IID,
100 Function *&NewFn) {
101 if (F->getReturnType()->getScalarType()->isBFloatTy())
102 return false;
103
104 rename(F);
105 NewFn = Intrinsic::getDeclaration(F->getParent(), IID);
106 return true;
107 }
108
upgradeX86BF16DPIntrinsic(Function * F,Intrinsic::ID IID,Function * & NewFn)109 static bool upgradeX86BF16DPIntrinsic(Function *F, Intrinsic::ID IID,
110 Function *&NewFn) {
111 if (F->getFunctionType()->getParamType(1)->getScalarType()->isBFloatTy())
112 return false;
113
114 rename(F);
115 NewFn = Intrinsic::getDeclaration(F->getParent(), IID);
116 return true;
117 }
118
shouldUpgradeX86Intrinsic(Function * F,StringRef Name)119 static bool shouldUpgradeX86Intrinsic(Function *F, StringRef Name) {
120 // All of the intrinsics matches below should be marked with which llvm
121 // version started autoupgrading them. At some point in the future we would
122 // like to use this information to remove upgrade code for some older
123 // intrinsics. It is currently undecided how we will determine that future
124 // point.
125 if (Name.consume_front("avx."))
126 return (Name.starts_with("blend.p") || // Added in 3.7
127 Name == "cvt.ps2.pd.256" || // Added in 3.9
128 Name == "cvtdq2.pd.256" || // Added in 3.9
129 Name == "cvtdq2.ps.256" || // Added in 7.0
130 Name.starts_with("movnt.") || // Added in 3.2
131 Name.starts_with("sqrt.p") || // Added in 7.0
132 Name.starts_with("storeu.") || // Added in 3.9
133 Name.starts_with("vbroadcast.s") || // Added in 3.5
134 Name.starts_with("vbroadcastf128") || // Added in 4.0
135 Name.starts_with("vextractf128.") || // Added in 3.7
136 Name.starts_with("vinsertf128.") || // Added in 3.7
137 Name.starts_with("vperm2f128.") || // Added in 6.0
138 Name.starts_with("vpermil.")); // Added in 3.1
139
140 if (Name.consume_front("avx2."))
141 return (Name == "movntdqa" || // Added in 5.0
142 Name.starts_with("pabs.") || // Added in 6.0
143 Name.starts_with("padds.") || // Added in 8.0
144 Name.starts_with("paddus.") || // Added in 8.0
145 Name.starts_with("pblendd.") || // Added in 3.7
146 Name == "pblendw" || // Added in 3.7
147 Name.starts_with("pbroadcast") || // Added in 3.8
148 Name.starts_with("pcmpeq.") || // Added in 3.1
149 Name.starts_with("pcmpgt.") || // Added in 3.1
150 Name.starts_with("pmax") || // Added in 3.9
151 Name.starts_with("pmin") || // Added in 3.9
152 Name.starts_with("pmovsx") || // Added in 3.9
153 Name.starts_with("pmovzx") || // Added in 3.9
154 Name == "pmul.dq" || // Added in 7.0
155 Name == "pmulu.dq" || // Added in 7.0
156 Name.starts_with("psll.dq") || // Added in 3.7
157 Name.starts_with("psrl.dq") || // Added in 3.7
158 Name.starts_with("psubs.") || // Added in 8.0
159 Name.starts_with("psubus.") || // Added in 8.0
160 Name.starts_with("vbroadcast") || // Added in 3.8
161 Name == "vbroadcasti128" || // Added in 3.7
162 Name == "vextracti128" || // Added in 3.7
163 Name == "vinserti128" || // Added in 3.7
164 Name == "vperm2i128"); // Added in 6.0
165
166 if (Name.consume_front("avx512.")) {
167 if (Name.consume_front("mask."))
168 // 'avx512.mask.*'
169 return (Name.starts_with("add.p") || // Added in 7.0. 128/256 in 4.0
170 Name.starts_with("and.") || // Added in 3.9
171 Name.starts_with("andn.") || // Added in 3.9
172 Name.starts_with("broadcast.s") || // Added in 3.9
173 Name.starts_with("broadcastf32x4.") || // Added in 6.0
174 Name.starts_with("broadcastf32x8.") || // Added in 6.0
175 Name.starts_with("broadcastf64x2.") || // Added in 6.0
176 Name.starts_with("broadcastf64x4.") || // Added in 6.0
177 Name.starts_with("broadcasti32x4.") || // Added in 6.0
178 Name.starts_with("broadcasti32x8.") || // Added in 6.0
179 Name.starts_with("broadcasti64x2.") || // Added in 6.0
180 Name.starts_with("broadcasti64x4.") || // Added in 6.0
181 Name.starts_with("cmp.b") || // Added in 5.0
182 Name.starts_with("cmp.d") || // Added in 5.0
183 Name.starts_with("cmp.q") || // Added in 5.0
184 Name.starts_with("cmp.w") || // Added in 5.0
185 Name.starts_with("compress.b") || // Added in 9.0
186 Name.starts_with("compress.d") || // Added in 9.0
187 Name.starts_with("compress.p") || // Added in 9.0
188 Name.starts_with("compress.q") || // Added in 9.0
189 Name.starts_with("compress.store.") || // Added in 7.0
190 Name.starts_with("compress.w") || // Added in 9.0
191 Name.starts_with("conflict.") || // Added in 9.0
192 Name.starts_with("cvtdq2pd.") || // Added in 4.0
193 Name.starts_with("cvtdq2ps.") || // Added in 7.0 updated 9.0
194 Name == "cvtpd2dq.256" || // Added in 7.0
195 Name == "cvtpd2ps.256" || // Added in 7.0
196 Name == "cvtps2pd.128" || // Added in 7.0
197 Name == "cvtps2pd.256" || // Added in 7.0
198 Name.starts_with("cvtqq2pd.") || // Added in 7.0 updated 9.0
199 Name == "cvtqq2ps.256" || // Added in 9.0
200 Name == "cvtqq2ps.512" || // Added in 9.0
201 Name == "cvttpd2dq.256" || // Added in 7.0
202 Name == "cvttps2dq.128" || // Added in 7.0
203 Name == "cvttps2dq.256" || // Added in 7.0
204 Name.starts_with("cvtudq2pd.") || // Added in 4.0
205 Name.starts_with("cvtudq2ps.") || // Added in 7.0 updated 9.0
206 Name.starts_with("cvtuqq2pd.") || // Added in 7.0 updated 9.0
207 Name == "cvtuqq2ps.256" || // Added in 9.0
208 Name == "cvtuqq2ps.512" || // Added in 9.0
209 Name.starts_with("dbpsadbw.") || // Added in 7.0
210 Name.starts_with("div.p") || // Added in 7.0. 128/256 in 4.0
211 Name.starts_with("expand.b") || // Added in 9.0
212 Name.starts_with("expand.d") || // Added in 9.0
213 Name.starts_with("expand.load.") || // Added in 7.0
214 Name.starts_with("expand.p") || // Added in 9.0
215 Name.starts_with("expand.q") || // Added in 9.0
216 Name.starts_with("expand.w") || // Added in 9.0
217 Name.starts_with("fpclass.p") || // Added in 7.0
218 Name.starts_with("insert") || // Added in 4.0
219 Name.starts_with("load.") || // Added in 3.9
220 Name.starts_with("loadu.") || // Added in 3.9
221 Name.starts_with("lzcnt.") || // Added in 5.0
222 Name.starts_with("max.p") || // Added in 7.0. 128/256 in 5.0
223 Name.starts_with("min.p") || // Added in 7.0. 128/256 in 5.0
224 Name.starts_with("movddup") || // Added in 3.9
225 Name.starts_with("move.s") || // Added in 4.0
226 Name.starts_with("movshdup") || // Added in 3.9
227 Name.starts_with("movsldup") || // Added in 3.9
228 Name.starts_with("mul.p") || // Added in 7.0. 128/256 in 4.0
229 Name.starts_with("or.") || // Added in 3.9
230 Name.starts_with("pabs.") || // Added in 6.0
231 Name.starts_with("packssdw.") || // Added in 5.0
232 Name.starts_with("packsswb.") || // Added in 5.0
233 Name.starts_with("packusdw.") || // Added in 5.0
234 Name.starts_with("packuswb.") || // Added in 5.0
235 Name.starts_with("padd.") || // Added in 4.0
236 Name.starts_with("padds.") || // Added in 8.0
237 Name.starts_with("paddus.") || // Added in 8.0
238 Name.starts_with("palignr.") || // Added in 3.9
239 Name.starts_with("pand.") || // Added in 3.9
240 Name.starts_with("pandn.") || // Added in 3.9
241 Name.starts_with("pavg") || // Added in 6.0
242 Name.starts_with("pbroadcast") || // Added in 6.0
243 Name.starts_with("pcmpeq.") || // Added in 3.9
244 Name.starts_with("pcmpgt.") || // Added in 3.9
245 Name.starts_with("perm.df.") || // Added in 3.9
246 Name.starts_with("perm.di.") || // Added in 3.9
247 Name.starts_with("permvar.") || // Added in 7.0
248 Name.starts_with("pmaddubs.w.") || // Added in 7.0
249 Name.starts_with("pmaddw.d.") || // Added in 7.0
250 Name.starts_with("pmax") || // Added in 4.0
251 Name.starts_with("pmin") || // Added in 4.0
252 Name == "pmov.qd.256" || // Added in 9.0
253 Name == "pmov.qd.512" || // Added in 9.0
254 Name == "pmov.wb.256" || // Added in 9.0
255 Name == "pmov.wb.512" || // Added in 9.0
256 Name.starts_with("pmovsx") || // Added in 4.0
257 Name.starts_with("pmovzx") || // Added in 4.0
258 Name.starts_with("pmul.dq.") || // Added in 4.0
259 Name.starts_with("pmul.hr.sw.") || // Added in 7.0
260 Name.starts_with("pmulh.w.") || // Added in 7.0
261 Name.starts_with("pmulhu.w.") || // Added in 7.0
262 Name.starts_with("pmull.") || // Added in 4.0
263 Name.starts_with("pmultishift.qb.") || // Added in 8.0
264 Name.starts_with("pmulu.dq.") || // Added in 4.0
265 Name.starts_with("por.") || // Added in 3.9
266 Name.starts_with("prol.") || // Added in 8.0
267 Name.starts_with("prolv.") || // Added in 8.0
268 Name.starts_with("pror.") || // Added in 8.0
269 Name.starts_with("prorv.") || // Added in 8.0
270 Name.starts_with("pshuf.b.") || // Added in 4.0
271 Name.starts_with("pshuf.d.") || // Added in 3.9
272 Name.starts_with("pshufh.w.") || // Added in 3.9
273 Name.starts_with("pshufl.w.") || // Added in 3.9
274 Name.starts_with("psll.d") || // Added in 4.0
275 Name.starts_with("psll.q") || // Added in 4.0
276 Name.starts_with("psll.w") || // Added in 4.0
277 Name.starts_with("pslli") || // Added in 4.0
278 Name.starts_with("psllv") || // Added in 4.0
279 Name.starts_with("psra.d") || // Added in 4.0
280 Name.starts_with("psra.q") || // Added in 4.0
281 Name.starts_with("psra.w") || // Added in 4.0
282 Name.starts_with("psrai") || // Added in 4.0
283 Name.starts_with("psrav") || // Added in 4.0
284 Name.starts_with("psrl.d") || // Added in 4.0
285 Name.starts_with("psrl.q") || // Added in 4.0
286 Name.starts_with("psrl.w") || // Added in 4.0
287 Name.starts_with("psrli") || // Added in 4.0
288 Name.starts_with("psrlv") || // Added in 4.0
289 Name.starts_with("psub.") || // Added in 4.0
290 Name.starts_with("psubs.") || // Added in 8.0
291 Name.starts_with("psubus.") || // Added in 8.0
292 Name.starts_with("pternlog.") || // Added in 7.0
293 Name.starts_with("punpckh") || // Added in 3.9
294 Name.starts_with("punpckl") || // Added in 3.9
295 Name.starts_with("pxor.") || // Added in 3.9
296 Name.starts_with("shuf.f") || // Added in 6.0
297 Name.starts_with("shuf.i") || // Added in 6.0
298 Name.starts_with("shuf.p") || // Added in 4.0
299 Name.starts_with("sqrt.p") || // Added in 7.0
300 Name.starts_with("store.b.") || // Added in 3.9
301 Name.starts_with("store.d.") || // Added in 3.9
302 Name.starts_with("store.p") || // Added in 3.9
303 Name.starts_with("store.q.") || // Added in 3.9
304 Name.starts_with("store.w.") || // Added in 3.9
305 Name == "store.ss" || // Added in 7.0
306 Name.starts_with("storeu.") || // Added in 3.9
307 Name.starts_with("sub.p") || // Added in 7.0. 128/256 in 4.0
308 Name.starts_with("ucmp.") || // Added in 5.0
309 Name.starts_with("unpckh.") || // Added in 3.9
310 Name.starts_with("unpckl.") || // Added in 3.9
311 Name.starts_with("valign.") || // Added in 4.0
312 Name == "vcvtph2ps.128" || // Added in 11.0
313 Name == "vcvtph2ps.256" || // Added in 11.0
314 Name.starts_with("vextract") || // Added in 4.0
315 Name.starts_with("vfmadd.") || // Added in 7.0
316 Name.starts_with("vfmaddsub.") || // Added in 7.0
317 Name.starts_with("vfnmadd.") || // Added in 7.0
318 Name.starts_with("vfnmsub.") || // Added in 7.0
319 Name.starts_with("vpdpbusd.") || // Added in 7.0
320 Name.starts_with("vpdpbusds.") || // Added in 7.0
321 Name.starts_with("vpdpwssd.") || // Added in 7.0
322 Name.starts_with("vpdpwssds.") || // Added in 7.0
323 Name.starts_with("vpermi2var.") || // Added in 7.0
324 Name.starts_with("vpermil.p") || // Added in 3.9
325 Name.starts_with("vpermilvar.") || // Added in 4.0
326 Name.starts_with("vpermt2var.") || // Added in 7.0
327 Name.starts_with("vpmadd52") || // Added in 7.0
328 Name.starts_with("vpshld.") || // Added in 7.0
329 Name.starts_with("vpshldv.") || // Added in 8.0
330 Name.starts_with("vpshrd.") || // Added in 7.0
331 Name.starts_with("vpshrdv.") || // Added in 8.0
332 Name.starts_with("vpshufbitqmb.") || // Added in 8.0
333 Name.starts_with("xor.")); // Added in 3.9
334
335 if (Name.consume_front("mask3."))
336 // 'avx512.mask3.*'
337 return (Name.starts_with("vfmadd.") || // Added in 7.0
338 Name.starts_with("vfmaddsub.") || // Added in 7.0
339 Name.starts_with("vfmsub.") || // Added in 7.0
340 Name.starts_with("vfmsubadd.") || // Added in 7.0
341 Name.starts_with("vfnmsub.")); // Added in 7.0
342
343 if (Name.consume_front("maskz."))
344 // 'avx512.maskz.*'
345 return (Name.starts_with("pternlog.") || // Added in 7.0
346 Name.starts_with("vfmadd.") || // Added in 7.0
347 Name.starts_with("vfmaddsub.") || // Added in 7.0
348 Name.starts_with("vpdpbusd.") || // Added in 7.0
349 Name.starts_with("vpdpbusds.") || // Added in 7.0
350 Name.starts_with("vpdpwssd.") || // Added in 7.0
351 Name.starts_with("vpdpwssds.") || // Added in 7.0
352 Name.starts_with("vpermt2var.") || // Added in 7.0
353 Name.starts_with("vpmadd52") || // Added in 7.0
354 Name.starts_with("vpshldv.") || // Added in 8.0
355 Name.starts_with("vpshrdv.")); // Added in 8.0
356
357 // 'avx512.*'
358 return (Name == "movntdqa" || // Added in 5.0
359 Name == "pmul.dq.512" || // Added in 7.0
360 Name == "pmulu.dq.512" || // Added in 7.0
361 Name.starts_with("broadcastm") || // Added in 6.0
362 Name.starts_with("cmp.p") || // Added in 12.0
363 Name.starts_with("cvtb2mask.") || // Added in 7.0
364 Name.starts_with("cvtd2mask.") || // Added in 7.0
365 Name.starts_with("cvtmask2") || // Added in 5.0
366 Name.starts_with("cvtq2mask.") || // Added in 7.0
367 Name == "cvtusi2sd" || // Added in 7.0
368 Name.starts_with("cvtw2mask.") || // Added in 7.0
369 Name == "kand.w" || // Added in 7.0
370 Name == "kandn.w" || // Added in 7.0
371 Name == "knot.w" || // Added in 7.0
372 Name == "kor.w" || // Added in 7.0
373 Name == "kortestc.w" || // Added in 7.0
374 Name == "kortestz.w" || // Added in 7.0
375 Name.starts_with("kunpck") || // added in 6.0
376 Name == "kxnor.w" || // Added in 7.0
377 Name == "kxor.w" || // Added in 7.0
378 Name.starts_with("padds.") || // Added in 8.0
379 Name.starts_with("pbroadcast") || // Added in 3.9
380 Name.starts_with("prol") || // Added in 8.0
381 Name.starts_with("pror") || // Added in 8.0
382 Name.starts_with("psll.dq") || // Added in 3.9
383 Name.starts_with("psrl.dq") || // Added in 3.9
384 Name.starts_with("psubs.") || // Added in 8.0
385 Name.starts_with("ptestm") || // Added in 6.0
386 Name.starts_with("ptestnm") || // Added in 6.0
387 Name.starts_with("storent.") || // Added in 3.9
388 Name.starts_with("vbroadcast.s") || // Added in 7.0
389 Name.starts_with("vpshld.") || // Added in 8.0
390 Name.starts_with("vpshrd.")); // Added in 8.0
391 }
392
393 if (Name.consume_front("fma."))
394 return (Name.starts_with("vfmadd.") || // Added in 7.0
395 Name.starts_with("vfmsub.") || // Added in 7.0
396 Name.starts_with("vfmsubadd.") || // Added in 7.0
397 Name.starts_with("vfnmadd.") || // Added in 7.0
398 Name.starts_with("vfnmsub.")); // Added in 7.0
399
400 if (Name.consume_front("fma4."))
401 return Name.starts_with("vfmadd.s"); // Added in 7.0
402
403 if (Name.consume_front("sse."))
404 return (Name == "add.ss" || // Added in 4.0
405 Name == "cvtsi2ss" || // Added in 7.0
406 Name == "cvtsi642ss" || // Added in 7.0
407 Name == "div.ss" || // Added in 4.0
408 Name == "mul.ss" || // Added in 4.0
409 Name.starts_with("sqrt.p") || // Added in 7.0
410 Name == "sqrt.ss" || // Added in 7.0
411 Name.starts_with("storeu.") || // Added in 3.9
412 Name == "sub.ss"); // Added in 4.0
413
414 if (Name.consume_front("sse2."))
415 return (Name == "add.sd" || // Added in 4.0
416 Name == "cvtdq2pd" || // Added in 3.9
417 Name == "cvtdq2ps" || // Added in 7.0
418 Name == "cvtps2pd" || // Added in 3.9
419 Name == "cvtsi2sd" || // Added in 7.0
420 Name == "cvtsi642sd" || // Added in 7.0
421 Name == "cvtss2sd" || // Added in 7.0
422 Name == "div.sd" || // Added in 4.0
423 Name == "mul.sd" || // Added in 4.0
424 Name.starts_with("padds.") || // Added in 8.0
425 Name.starts_with("paddus.") || // Added in 8.0
426 Name.starts_with("pcmpeq.") || // Added in 3.1
427 Name.starts_with("pcmpgt.") || // Added in 3.1
428 Name == "pmaxs.w" || // Added in 3.9
429 Name == "pmaxu.b" || // Added in 3.9
430 Name == "pmins.w" || // Added in 3.9
431 Name == "pminu.b" || // Added in 3.9
432 Name == "pmulu.dq" || // Added in 7.0
433 Name.starts_with("pshuf") || // Added in 3.9
434 Name.starts_with("psll.dq") || // Added in 3.7
435 Name.starts_with("psrl.dq") || // Added in 3.7
436 Name.starts_with("psubs.") || // Added in 8.0
437 Name.starts_with("psubus.") || // Added in 8.0
438 Name.starts_with("sqrt.p") || // Added in 7.0
439 Name == "sqrt.sd" || // Added in 7.0
440 Name == "storel.dq" || // Added in 3.9
441 Name.starts_with("storeu.") || // Added in 3.9
442 Name == "sub.sd"); // Added in 4.0
443
444 if (Name.consume_front("sse41."))
445 return (Name.starts_with("blendp") || // Added in 3.7
446 Name == "movntdqa" || // Added in 5.0
447 Name == "pblendw" || // Added in 3.7
448 Name == "pmaxsb" || // Added in 3.9
449 Name == "pmaxsd" || // Added in 3.9
450 Name == "pmaxud" || // Added in 3.9
451 Name == "pmaxuw" || // Added in 3.9
452 Name == "pminsb" || // Added in 3.9
453 Name == "pminsd" || // Added in 3.9
454 Name == "pminud" || // Added in 3.9
455 Name == "pminuw" || // Added in 3.9
456 Name.starts_with("pmovsx") || // Added in 3.8
457 Name.starts_with("pmovzx") || // Added in 3.9
458 Name == "pmuldq"); // Added in 7.0
459
460 if (Name.consume_front("sse42."))
461 return Name == "crc32.64.8"; // Added in 3.4
462
463 if (Name.consume_front("sse4a."))
464 return Name.starts_with("movnt."); // Added in 3.9
465
466 if (Name.consume_front("ssse3."))
467 return (Name == "pabs.b.128" || // Added in 6.0
468 Name == "pabs.d.128" || // Added in 6.0
469 Name == "pabs.w.128"); // Added in 6.0
470
471 if (Name.consume_front("xop."))
472 return (Name == "vpcmov" || // Added in 3.8
473 Name == "vpcmov.256" || // Added in 5.0
474 Name.starts_with("vpcom") || // Added in 3.2, Updated in 9.0
475 Name.starts_with("vprot")); // Added in 8.0
476
477 return (Name == "addcarry.u32" || // Added in 8.0
478 Name == "addcarry.u64" || // Added in 8.0
479 Name == "addcarryx.u32" || // Added in 8.0
480 Name == "addcarryx.u64" || // Added in 8.0
481 Name == "subborrow.u32" || // Added in 8.0
482 Name == "subborrow.u64" || // Added in 8.0
483 Name.starts_with("vcvtph2ps.")); // Added in 11.0
484 }
485
upgradeX86IntrinsicFunction(Function * F,StringRef Name,Function * & NewFn)486 static bool upgradeX86IntrinsicFunction(Function *F, StringRef Name,
487 Function *&NewFn) {
488 // Only handle intrinsics that start with "x86.".
489 if (!Name.consume_front("x86."))
490 return false;
491
492 if (shouldUpgradeX86Intrinsic(F, Name)) {
493 NewFn = nullptr;
494 return true;
495 }
496
497 if (Name == "rdtscp") { // Added in 8.0
498 // If this intrinsic has 0 operands, it's the new version.
499 if (F->getFunctionType()->getNumParams() == 0)
500 return false;
501
502 rename(F);
503 NewFn = Intrinsic::getDeclaration(F->getParent(),
504 Intrinsic::x86_rdtscp);
505 return true;
506 }
507
508 Intrinsic::ID ID;
509
510 // SSE4.1 ptest functions may have an old signature.
511 if (Name.consume_front("sse41.ptest")) { // Added in 3.2
512 ID = StringSwitch<Intrinsic::ID>(Name)
513 .Case("c", Intrinsic::x86_sse41_ptestc)
514 .Case("z", Intrinsic::x86_sse41_ptestz)
515 .Case("nzc", Intrinsic::x86_sse41_ptestnzc)
516 .Default(Intrinsic::not_intrinsic);
517 if (ID != Intrinsic::not_intrinsic)
518 return upgradePTESTIntrinsic(F, ID, NewFn);
519
520 return false;
521 }
522
523 // Several blend and other instructions with masks used the wrong number of
524 // bits.
525
526 // Added in 3.6
527 ID = StringSwitch<Intrinsic::ID>(Name)
528 .Case("sse41.insertps", Intrinsic::x86_sse41_insertps)
529 .Case("sse41.dppd", Intrinsic::x86_sse41_dppd)
530 .Case("sse41.dpps", Intrinsic::x86_sse41_dpps)
531 .Case("sse41.mpsadbw", Intrinsic::x86_sse41_mpsadbw)
532 .Case("avx.dp.ps.256", Intrinsic::x86_avx_dp_ps_256)
533 .Case("avx2.mpsadbw", Intrinsic::x86_avx2_mpsadbw)
534 .Default(Intrinsic::not_intrinsic);
535 if (ID != Intrinsic::not_intrinsic)
536 return upgradeX86IntrinsicsWith8BitMask(F, ID, NewFn);
537
538 if (Name.consume_front("avx512.mask.cmp.")) {
539 // Added in 7.0
540 ID = StringSwitch<Intrinsic::ID>(Name)
541 .Case("pd.128", Intrinsic::x86_avx512_mask_cmp_pd_128)
542 .Case("pd.256", Intrinsic::x86_avx512_mask_cmp_pd_256)
543 .Case("pd.512", Intrinsic::x86_avx512_mask_cmp_pd_512)
544 .Case("ps.128", Intrinsic::x86_avx512_mask_cmp_ps_128)
545 .Case("ps.256", Intrinsic::x86_avx512_mask_cmp_ps_256)
546 .Case("ps.512", Intrinsic::x86_avx512_mask_cmp_ps_512)
547 .Default(Intrinsic::not_intrinsic);
548 if (ID != Intrinsic::not_intrinsic)
549 return upgradeX86MaskedFPCompare(F, ID, NewFn);
550 return false; // No other 'x86.avx523.mask.cmp.*'.
551 }
552
553 if (Name.consume_front("avx512bf16.")) {
554 // Added in 9.0
555 ID = StringSwitch<Intrinsic::ID>(Name)
556 .Case("cvtne2ps2bf16.128",
557 Intrinsic::x86_avx512bf16_cvtne2ps2bf16_128)
558 .Case("cvtne2ps2bf16.256",
559 Intrinsic::x86_avx512bf16_cvtne2ps2bf16_256)
560 .Case("cvtne2ps2bf16.512",
561 Intrinsic::x86_avx512bf16_cvtne2ps2bf16_512)
562 .Case("mask.cvtneps2bf16.128",
563 Intrinsic::x86_avx512bf16_mask_cvtneps2bf16_128)
564 .Case("cvtneps2bf16.256",
565 Intrinsic::x86_avx512bf16_cvtneps2bf16_256)
566 .Case("cvtneps2bf16.512",
567 Intrinsic::x86_avx512bf16_cvtneps2bf16_512)
568 .Default(Intrinsic::not_intrinsic);
569 if (ID != Intrinsic::not_intrinsic)
570 return upgradeX86BF16Intrinsic(F, ID, NewFn);
571
572 // Added in 9.0
573 ID = StringSwitch<Intrinsic::ID>(Name)
574 .Case("dpbf16ps.128", Intrinsic::x86_avx512bf16_dpbf16ps_128)
575 .Case("dpbf16ps.256", Intrinsic::x86_avx512bf16_dpbf16ps_256)
576 .Case("dpbf16ps.512", Intrinsic::x86_avx512bf16_dpbf16ps_512)
577 .Default(Intrinsic::not_intrinsic);
578 if (ID != Intrinsic::not_intrinsic)
579 return upgradeX86BF16DPIntrinsic(F, ID, NewFn);
580 return false; // No other 'x86.avx512bf16.*'.
581 }
582
583 if (Name.consume_front("xop.")) {
584 Intrinsic::ID ID = Intrinsic::not_intrinsic;
585 if (Name.starts_with("vpermil2")) { // Added in 3.9
586 // Upgrade any XOP PERMIL2 index operand still using a float/double
587 // vector.
588 auto Idx = F->getFunctionType()->getParamType(2);
589 if (Idx->isFPOrFPVectorTy()) {
590 unsigned IdxSize = Idx->getPrimitiveSizeInBits();
591 unsigned EltSize = Idx->getScalarSizeInBits();
592 if (EltSize == 64 && IdxSize == 128)
593 ID = Intrinsic::x86_xop_vpermil2pd;
594 else if (EltSize == 32 && IdxSize == 128)
595 ID = Intrinsic::x86_xop_vpermil2ps;
596 else if (EltSize == 64 && IdxSize == 256)
597 ID = Intrinsic::x86_xop_vpermil2pd_256;
598 else
599 ID = Intrinsic::x86_xop_vpermil2ps_256;
600 }
601 } else if (F->arg_size() == 2)
602 // frcz.ss/sd may need to have an argument dropped. Added in 3.2
603 ID = StringSwitch<Intrinsic::ID>(Name)
604 .Case("vfrcz.ss", Intrinsic::x86_xop_vfrcz_ss)
605 .Case("vfrcz.sd", Intrinsic::x86_xop_vfrcz_sd)
606 .Default(Intrinsic::not_intrinsic);
607
608 if (ID != Intrinsic::not_intrinsic) {
609 rename(F);
610 NewFn = Intrinsic::getDeclaration(F->getParent(), ID);
611 return true;
612 }
613 return false; // No other 'x86.xop.*'
614 }
615
616 if (Name == "seh.recoverfp") {
617 NewFn = Intrinsic::getDeclaration(F->getParent(), Intrinsic::eh_recoverfp);
618 return true;
619 }
620
621 return false;
622 }
623
624 // Upgrade ARM (IsArm) or Aarch64 (!IsArm) intrinsic fns. Return true iff so.
625 // IsArm: 'arm.*', !IsArm: 'aarch64.*'.
upgradeArmOrAarch64IntrinsicFunction(bool IsArm,Function * F,StringRef Name,Function * & NewFn)626 static bool upgradeArmOrAarch64IntrinsicFunction(bool IsArm, Function *F,
627 StringRef Name,
628 Function *&NewFn) {
629 if (Name.starts_with("rbit")) {
630 // '(arm|aarch64).rbit'.
631 NewFn = Intrinsic::getDeclaration(F->getParent(), Intrinsic::bitreverse,
632 F->arg_begin()->getType());
633 return true;
634 }
635
636 if (Name == "thread.pointer") {
637 // '(arm|aarch64).thread.pointer'.
638 NewFn =
639 Intrinsic::getDeclaration(F->getParent(), Intrinsic::thread_pointer);
640 return true;
641 }
642
643 bool Neon = Name.consume_front("neon.");
644 if (Neon) {
645 // '(arm|aarch64).neon.*'.
646 // Changed in 12.0: bfdot accept v4bf16 and v8bf16 instead of v8i8 and
647 // v16i8 respectively.
648 if (Name.consume_front("bfdot.")) {
649 // (arm|aarch64).neon.bfdot.*'.
650 Intrinsic::ID ID = StringSwitch<Intrinsic::ID>(Name)
651 .Cases("v2f32.v8i8", "v4f32.v16i8",
652 IsArm ? Intrinsic::arm_neon_bfdot
653 : Intrinsic::aarch64_neon_bfdot)
654 .Default(Intrinsic::not_intrinsic);
655 if (ID != Intrinsic::not_intrinsic) {
656 size_t OperandWidth = F->getReturnType()->getPrimitiveSizeInBits();
657 assert((OperandWidth == 64 || OperandWidth == 128) &&
658 "Unexpected operand width");
659 LLVMContext &Ctx = F->getParent()->getContext();
660 std::array<Type *, 2> Tys{
661 {F->getReturnType(),
662 FixedVectorType::get(Type::getBFloatTy(Ctx), OperandWidth / 16)}};
663 NewFn = Intrinsic::getDeclaration(F->getParent(), ID, Tys);
664 return true;
665 }
666 return false; // No other '(arm|aarch64).neon.bfdot.*'.
667 }
668
669 // Changed in 12.0: bfmmla, bfmlalb and bfmlalt are not polymorphic
670 // anymore and accept v8bf16 instead of v16i8.
671 if (Name.consume_front("bfm")) {
672 // (arm|aarch64).neon.bfm*'.
673 if (Name.consume_back(".v4f32.v16i8")) {
674 // (arm|aarch64).neon.bfm*.v4f32.v16i8'.
675 Intrinsic::ID ID =
676 StringSwitch<Intrinsic::ID>(Name)
677 .Case("mla", IsArm ? Intrinsic::arm_neon_bfmmla
678 : Intrinsic::aarch64_neon_bfmmla)
679 .Case("lalb", IsArm ? Intrinsic::arm_neon_bfmlalb
680 : Intrinsic::aarch64_neon_bfmlalb)
681 .Case("lalt", IsArm ? Intrinsic::arm_neon_bfmlalt
682 : Intrinsic::aarch64_neon_bfmlalt)
683 .Default(Intrinsic::not_intrinsic);
684 if (ID != Intrinsic::not_intrinsic) {
685 NewFn = Intrinsic::getDeclaration(F->getParent(), ID);
686 return true;
687 }
688 return false; // No other '(arm|aarch64).neon.bfm*.v16i8'.
689 }
690 return false; // No other '(arm|aarch64).neon.bfm*.
691 }
692 // Continue on to Aarch64 Neon or Arm Neon.
693 }
694 // Continue on to Arm or Aarch64.
695
696 if (IsArm) {
697 // 'arm.*'.
698 if (Neon) {
699 // 'arm.neon.*'.
700 Intrinsic::ID ID = StringSwitch<Intrinsic::ID>(Name)
701 .StartsWith("vclz.", Intrinsic::ctlz)
702 .StartsWith("vcnt.", Intrinsic::ctpop)
703 .StartsWith("vqadds.", Intrinsic::sadd_sat)
704 .StartsWith("vqaddu.", Intrinsic::uadd_sat)
705 .StartsWith("vqsubs.", Intrinsic::ssub_sat)
706 .StartsWith("vqsubu.", Intrinsic::usub_sat)
707 .Default(Intrinsic::not_intrinsic);
708 if (ID != Intrinsic::not_intrinsic) {
709 NewFn = Intrinsic::getDeclaration(F->getParent(), ID,
710 F->arg_begin()->getType());
711 return true;
712 }
713
714 if (Name.consume_front("vst")) {
715 // 'arm.neon.vst*'.
716 static const Regex vstRegex("^([1234]|[234]lane)\\.v[a-z0-9]*$");
717 SmallVector<StringRef, 2> Groups;
718 if (vstRegex.match(Name, &Groups)) {
719 static const Intrinsic::ID StoreInts[] = {
720 Intrinsic::arm_neon_vst1, Intrinsic::arm_neon_vst2,
721 Intrinsic::arm_neon_vst3, Intrinsic::arm_neon_vst4};
722
723 static const Intrinsic::ID StoreLaneInts[] = {
724 Intrinsic::arm_neon_vst2lane, Intrinsic::arm_neon_vst3lane,
725 Intrinsic::arm_neon_vst4lane};
726
727 auto fArgs = F->getFunctionType()->params();
728 Type *Tys[] = {fArgs[0], fArgs[1]};
729 if (Groups[1].size() == 1)
730 NewFn = Intrinsic::getDeclaration(F->getParent(),
731 StoreInts[fArgs.size() - 3], Tys);
732 else
733 NewFn = Intrinsic::getDeclaration(
734 F->getParent(), StoreLaneInts[fArgs.size() - 5], Tys);
735 return true;
736 }
737 return false; // No other 'arm.neon.vst*'.
738 }
739
740 return false; // No other 'arm.neon.*'.
741 }
742
743 if (Name.consume_front("mve.")) {
744 // 'arm.mve.*'.
745 if (Name == "vctp64") {
746 if (cast<FixedVectorType>(F->getReturnType())->getNumElements() == 4) {
747 // A vctp64 returning a v4i1 is converted to return a v2i1. Rename
748 // the function and deal with it below in UpgradeIntrinsicCall.
749 rename(F);
750 return true;
751 }
752 return false; // Not 'arm.mve.vctp64'.
753 }
754
755 // These too are changed to accept a v2i1 instead of the old v4i1.
756 if (Name.consume_back(".v4i1")) {
757 // 'arm.mve.*.v4i1'.
758 if (Name.consume_back(".predicated.v2i64.v4i32"))
759 // 'arm.mve.*.predicated.v2i64.v4i32.v4i1'
760 return Name == "mull.int" || Name == "vqdmull";
761
762 if (Name.consume_back(".v2i64")) {
763 // 'arm.mve.*.v2i64.v4i1'
764 bool IsGather = Name.consume_front("vldr.gather.");
765 if (IsGather || Name.consume_front("vstr.scatter.")) {
766 if (Name.consume_front("base.")) {
767 // Optional 'wb.' prefix.
768 Name.consume_front("wb.");
769 // 'arm.mve.(vldr.gather|vstr.scatter).base.(wb.)?
770 // predicated.v2i64.v2i64.v4i1'.
771 return Name == "predicated.v2i64";
772 }
773
774 if (Name.consume_front("offset.predicated."))
775 return Name == (IsGather ? "v2i64.p0i64" : "p0i64.v2i64") ||
776 Name == (IsGather ? "v2i64.p0" : "p0.v2i64");
777
778 // No other 'arm.mve.(vldr.gather|vstr.scatter).*.v2i64.v4i1'.
779 return false;
780 }
781
782 return false; // No other 'arm.mve.*.v2i64.v4i1'.
783 }
784 return false; // No other 'arm.mve.*.v4i1'.
785 }
786 return false; // No other 'arm.mve.*'.
787 }
788
789 if (Name.consume_front("cde.vcx")) {
790 // 'arm.cde.vcx*'.
791 if (Name.consume_back(".predicated.v2i64.v4i1"))
792 // 'arm.cde.vcx*.predicated.v2i64.v4i1'.
793 return Name == "1q" || Name == "1qa" || Name == "2q" || Name == "2qa" ||
794 Name == "3q" || Name == "3qa";
795
796 return false; // No other 'arm.cde.vcx*'.
797 }
798 } else {
799 // 'aarch64.*'.
800 if (Neon) {
801 // 'aarch64.neon.*'.
802 Intrinsic::ID ID = StringSwitch<Intrinsic::ID>(Name)
803 .StartsWith("frintn", Intrinsic::roundeven)
804 .StartsWith("rbit", Intrinsic::bitreverse)
805 .Default(Intrinsic::not_intrinsic);
806 if (ID != Intrinsic::not_intrinsic) {
807 NewFn = Intrinsic::getDeclaration(F->getParent(), ID,
808 F->arg_begin()->getType());
809 return true;
810 }
811
812 if (Name.starts_with("addp")) {
813 // 'aarch64.neon.addp*'.
814 if (F->arg_size() != 2)
815 return false; // Invalid IR.
816 VectorType *Ty = dyn_cast<VectorType>(F->getReturnType());
817 if (Ty && Ty->getElementType()->isFloatingPointTy()) {
818 NewFn = Intrinsic::getDeclaration(F->getParent(),
819 Intrinsic::aarch64_neon_faddp, Ty);
820 return true;
821 }
822 }
823 return false; // No other 'aarch64.neon.*'.
824 }
825 if (Name.consume_front("sve.")) {
826 // 'aarch64.sve.*'.
827 if (Name.consume_front("bf")) {
828 if (Name.consume_back(".lane")) {
829 // 'aarch64.sve.bf*.lane'.
830 Intrinsic::ID ID =
831 StringSwitch<Intrinsic::ID>(Name)
832 .Case("dot", Intrinsic::aarch64_sve_bfdot_lane_v2)
833 .Case("mlalb", Intrinsic::aarch64_sve_bfmlalb_lane_v2)
834 .Case("mlalt", Intrinsic::aarch64_sve_bfmlalt_lane_v2)
835 .Default(Intrinsic::not_intrinsic);
836 if (ID != Intrinsic::not_intrinsic) {
837 NewFn = Intrinsic::getDeclaration(F->getParent(), ID);
838 return true;
839 }
840 return false; // No other 'aarch64.sve.bf*.lane'.
841 }
842 return false; // No other 'aarch64.sve.bf*'.
843 }
844
845 if (Name.consume_front("ld")) {
846 // 'aarch64.sve.ld*'.
847 static const Regex LdRegex("^[234](.nxv[a-z0-9]+|$)");
848 if (LdRegex.match(Name)) {
849 Type *ScalarTy =
850 dyn_cast<VectorType>(F->getReturnType())->getElementType();
851 ElementCount EC = dyn_cast<VectorType>(F->arg_begin()->getType())
852 ->getElementCount();
853 Type *Ty = VectorType::get(ScalarTy, EC);
854 static const Intrinsic::ID LoadIDs[] = {
855 Intrinsic::aarch64_sve_ld2_sret,
856 Intrinsic::aarch64_sve_ld3_sret,
857 Intrinsic::aarch64_sve_ld4_sret,
858 };
859 NewFn = Intrinsic::getDeclaration(F->getParent(),
860 LoadIDs[Name[0] - '2'], Ty);
861 return true;
862 }
863 return false; // No other 'aarch64.sve.ld*'.
864 }
865
866 if (Name.consume_front("tuple.")) {
867 // 'aarch64.sve.tuple.*'.
868 if (Name.starts_with("get")) {
869 // 'aarch64.sve.tuple.get*'.
870 Type *Tys[] = {F->getReturnType(), F->arg_begin()->getType()};
871 NewFn = Intrinsic::getDeclaration(F->getParent(),
872 Intrinsic::vector_extract, Tys);
873 return true;
874 }
875
876 if (Name.starts_with("set")) {
877 // 'aarch64.sve.tuple.set*'.
878 auto Args = F->getFunctionType()->params();
879 Type *Tys[] = {Args[0], Args[2], Args[1]};
880 NewFn = Intrinsic::getDeclaration(F->getParent(),
881 Intrinsic::vector_insert, Tys);
882 return true;
883 }
884
885 static const Regex CreateTupleRegex("^create[234](.nxv[a-z0-9]+|$)");
886 if (CreateTupleRegex.match(Name)) {
887 // 'aarch64.sve.tuple.create*'.
888 auto Args = F->getFunctionType()->params();
889 Type *Tys[] = {F->getReturnType(), Args[1]};
890 NewFn = Intrinsic::getDeclaration(F->getParent(),
891 Intrinsic::vector_insert, Tys);
892 return true;
893 }
894 return false; // No other 'aarch64.sve.tuple.*'.
895 }
896 return false; // No other 'aarch64.sve.*'.
897 }
898 }
899 return false; // No other 'arm.*', 'aarch64.*'.
900 }
901
shouldUpgradeNVPTXBF16Intrinsic(StringRef Name)902 static Intrinsic::ID shouldUpgradeNVPTXBF16Intrinsic(StringRef Name) {
903 if (Name.consume_front("abs."))
904 return StringSwitch<Intrinsic::ID>(Name)
905 .Case("bf16", Intrinsic::nvvm_abs_bf16)
906 .Case("bf16x2", Intrinsic::nvvm_abs_bf16x2)
907 .Default(Intrinsic::not_intrinsic);
908
909 if (Name.consume_front("fma.rn."))
910 return StringSwitch<Intrinsic::ID>(Name)
911 .Case("bf16", Intrinsic::nvvm_fma_rn_bf16)
912 .Case("bf16x2", Intrinsic::nvvm_fma_rn_bf16x2)
913 .Case("ftz.bf16", Intrinsic::nvvm_fma_rn_ftz_bf16)
914 .Case("ftz.bf16x2", Intrinsic::nvvm_fma_rn_ftz_bf16x2)
915 .Case("ftz.relu.bf16", Intrinsic::nvvm_fma_rn_ftz_relu_bf16)
916 .Case("ftz.relu.bf16x2", Intrinsic::nvvm_fma_rn_ftz_relu_bf16x2)
917 .Case("ftz.sat.bf16", Intrinsic::nvvm_fma_rn_ftz_sat_bf16)
918 .Case("ftz.sat.bf16x2", Intrinsic::nvvm_fma_rn_ftz_sat_bf16x2)
919 .Case("relu.bf16", Intrinsic::nvvm_fma_rn_relu_bf16)
920 .Case("relu.bf16x2", Intrinsic::nvvm_fma_rn_relu_bf16x2)
921 .Case("sat.bf16", Intrinsic::nvvm_fma_rn_sat_bf16)
922 .Case("sat.bf16x2", Intrinsic::nvvm_fma_rn_sat_bf16x2)
923 .Default(Intrinsic::not_intrinsic);
924
925 if (Name.consume_front("fmax."))
926 return StringSwitch<Intrinsic::ID>(Name)
927 .Case("bf16", Intrinsic::nvvm_fmax_bf16)
928 .Case("bf16x2", Intrinsic::nvvm_fmax_bf16x2)
929 .Case("ftz.bf16", Intrinsic::nvvm_fmax_ftz_bf16)
930 .Case("ftz.bf16x2", Intrinsic::nvvm_fmax_ftz_bf16x2)
931 .Case("ftz.nan.bf16", Intrinsic::nvvm_fmax_ftz_nan_bf16)
932 .Case("ftz.nan.bf16x2", Intrinsic::nvvm_fmax_ftz_nan_bf16x2)
933 .Case("ftz.nan.xorsign.abs.bf16",
934 Intrinsic::nvvm_fmax_ftz_nan_xorsign_abs_bf16)
935 .Case("ftz.nan.xorsign.abs.bf16x2",
936 Intrinsic::nvvm_fmax_ftz_nan_xorsign_abs_bf16x2)
937 .Case("ftz.xorsign.abs.bf16", Intrinsic::nvvm_fmax_ftz_xorsign_abs_bf16)
938 .Case("ftz.xorsign.abs.bf16x2",
939 Intrinsic::nvvm_fmax_ftz_xorsign_abs_bf16x2)
940 .Case("nan.bf16", Intrinsic::nvvm_fmax_nan_bf16)
941 .Case("nan.bf16x2", Intrinsic::nvvm_fmax_nan_bf16x2)
942 .Case("nan.xorsign.abs.bf16", Intrinsic::nvvm_fmax_nan_xorsign_abs_bf16)
943 .Case("nan.xorsign.abs.bf16x2",
944 Intrinsic::nvvm_fmax_nan_xorsign_abs_bf16x2)
945 .Case("xorsign.abs.bf16", Intrinsic::nvvm_fmax_xorsign_abs_bf16)
946 .Case("xorsign.abs.bf16x2", Intrinsic::nvvm_fmax_xorsign_abs_bf16x2)
947 .Default(Intrinsic::not_intrinsic);
948
949 if (Name.consume_front("fmin."))
950 return StringSwitch<Intrinsic::ID>(Name)
951 .Case("bf16", Intrinsic::nvvm_fmin_bf16)
952 .Case("bf16x2", Intrinsic::nvvm_fmin_bf16x2)
953 .Case("ftz.bf16", Intrinsic::nvvm_fmin_ftz_bf16)
954 .Case("ftz.bf16x2", Intrinsic::nvvm_fmin_ftz_bf16x2)
955 .Case("ftz.nan.bf16", Intrinsic::nvvm_fmin_ftz_nan_bf16)
956 .Case("ftz.nan.bf16x2", Intrinsic::nvvm_fmin_ftz_nan_bf16x2)
957 .Case("ftz.nan.xorsign.abs.bf16",
958 Intrinsic::nvvm_fmin_ftz_nan_xorsign_abs_bf16)
959 .Case("ftz.nan.xorsign.abs.bf16x2",
960 Intrinsic::nvvm_fmin_ftz_nan_xorsign_abs_bf16x2)
961 .Case("ftz.xorsign.abs.bf16", Intrinsic::nvvm_fmin_ftz_xorsign_abs_bf16)
962 .Case("ftz.xorsign.abs.bf16x2",
963 Intrinsic::nvvm_fmin_ftz_xorsign_abs_bf16x2)
964 .Case("nan.bf16", Intrinsic::nvvm_fmin_nan_bf16)
965 .Case("nan.bf16x2", Intrinsic::nvvm_fmin_nan_bf16x2)
966 .Case("nan.xorsign.abs.bf16", Intrinsic::nvvm_fmin_nan_xorsign_abs_bf16)
967 .Case("nan.xorsign.abs.bf16x2",
968 Intrinsic::nvvm_fmin_nan_xorsign_abs_bf16x2)
969 .Case("xorsign.abs.bf16", Intrinsic::nvvm_fmin_xorsign_abs_bf16)
970 .Case("xorsign.abs.bf16x2", Intrinsic::nvvm_fmin_xorsign_abs_bf16x2)
971 .Default(Intrinsic::not_intrinsic);
972
973 if (Name.consume_front("neg."))
974 return StringSwitch<Intrinsic::ID>(Name)
975 .Case("bf16", Intrinsic::nvvm_neg_bf16)
976 .Case("bf16x2", Intrinsic::nvvm_neg_bf16x2)
977 .Default(Intrinsic::not_intrinsic);
978
979 return Intrinsic::not_intrinsic;
980 }
981
upgradeIntrinsicFunction1(Function * F,Function * & NewFn)982 static bool upgradeIntrinsicFunction1(Function *F, Function *&NewFn) {
983 assert(F && "Illegal to upgrade a non-existent Function.");
984
985 StringRef Name = F->getName();
986
987 // Quickly eliminate it, if it's not a candidate.
988 if (!Name.consume_front("llvm.") || Name.empty())
989 return false;
990
991 switch (Name[0]) {
992 default: break;
993 case 'a': {
994 bool IsArm = Name.consume_front("arm.");
995 if (IsArm || Name.consume_front("aarch64.")) {
996 if (upgradeArmOrAarch64IntrinsicFunction(IsArm, F, Name, NewFn))
997 return true;
998 break;
999 }
1000
1001 if (Name.consume_front("amdgcn.")) {
1002 if (Name == "alignbit") {
1003 // Target specific intrinsic became redundant
1004 NewFn = Intrinsic::getDeclaration(F->getParent(), Intrinsic::fshr,
1005 {F->getReturnType()});
1006 return true;
1007 }
1008
1009 if (Name.consume_front("atomic.")) {
1010 if (Name.starts_with("inc") || Name.starts_with("dec")) {
1011 // These were replaced with atomicrmw uinc_wrap and udec_wrap, so
1012 // there's no new declaration.
1013 NewFn = nullptr;
1014 return true;
1015 }
1016 break; // No other 'amdgcn.atomic.*'
1017 }
1018
1019 if (Name.starts_with("ldexp.")) {
1020 // Target specific intrinsic became redundant
1021 NewFn = Intrinsic::getDeclaration(
1022 F->getParent(), Intrinsic::ldexp,
1023 {F->getReturnType(), F->getArg(1)->getType()});
1024 return true;
1025 }
1026 break; // No other 'amdgcn.*'
1027 }
1028
1029 break;
1030 }
1031 case 'c': {
1032 if (F->arg_size() == 1) {
1033 Intrinsic::ID ID = StringSwitch<Intrinsic::ID>(Name)
1034 .StartsWith("ctlz.", Intrinsic::ctlz)
1035 .StartsWith("cttz.", Intrinsic::cttz)
1036 .Default(Intrinsic::not_intrinsic);
1037 if (ID != Intrinsic::not_intrinsic) {
1038 rename(F);
1039 NewFn = Intrinsic::getDeclaration(F->getParent(), ID,
1040 F->arg_begin()->getType());
1041 return true;
1042 }
1043 }
1044
1045 if (F->arg_size() == 2 && Name.equals("coro.end")) {
1046 rename(F);
1047 NewFn = Intrinsic::getDeclaration(F->getParent(), Intrinsic::coro_end);
1048 return true;
1049 }
1050
1051 break;
1052 }
1053 case 'd':
1054 if (Name.consume_front("dbg.")) {
1055 if (Name == "addr" || (Name == "value" && F->arg_size() == 4)) {
1056 rename(F);
1057 NewFn = Intrinsic::getDeclaration(F->getParent(), Intrinsic::dbg_value);
1058 return true;
1059 }
1060 break; // No other 'dbg.*'.
1061 }
1062 break;
1063 case 'e':
1064 if (Name.consume_front("experimental.vector.")) {
1065 Intrinsic::ID ID = StringSwitch<Intrinsic::ID>(Name)
1066 .StartsWith("extract.", Intrinsic::vector_extract)
1067 .StartsWith("insert.", Intrinsic::vector_insert)
1068 .Default(Intrinsic::not_intrinsic);
1069 if (ID != Intrinsic::not_intrinsic) {
1070 const auto *FT = F->getFunctionType();
1071 SmallVector<Type *, 2> Tys;
1072 if (ID == Intrinsic::vector_extract)
1073 // Extracting overloads the return type.
1074 Tys.push_back(FT->getReturnType());
1075 Tys.push_back(FT->getParamType(0));
1076 if (ID == Intrinsic::vector_insert)
1077 // Inserting overloads the inserted type.
1078 Tys.push_back(FT->getParamType(1));
1079 rename(F);
1080 NewFn = Intrinsic::getDeclaration(F->getParent(), ID, Tys);
1081 return true;
1082 }
1083
1084 if (Name.consume_front("reduce.")) {
1085 SmallVector<StringRef, 2> Groups;
1086 static const Regex R("^([a-z]+)\\.[a-z][0-9]+");
1087 if (R.match(Name, &Groups))
1088 ID = StringSwitch<Intrinsic::ID>(Groups[1])
1089 .Case("add", Intrinsic::vector_reduce_add)
1090 .Case("mul", Intrinsic::vector_reduce_mul)
1091 .Case("and", Intrinsic::vector_reduce_and)
1092 .Case("or", Intrinsic::vector_reduce_or)
1093 .Case("xor", Intrinsic::vector_reduce_xor)
1094 .Case("smax", Intrinsic::vector_reduce_smax)
1095 .Case("smin", Intrinsic::vector_reduce_smin)
1096 .Case("umax", Intrinsic::vector_reduce_umax)
1097 .Case("umin", Intrinsic::vector_reduce_umin)
1098 .Case("fmax", Intrinsic::vector_reduce_fmax)
1099 .Case("fmin", Intrinsic::vector_reduce_fmin)
1100 .Default(Intrinsic::not_intrinsic);
1101
1102 bool V2 = false;
1103 if (ID == Intrinsic::not_intrinsic) {
1104 static const Regex R2("^v2\\.([a-z]+)\\.[fi][0-9]+");
1105 Groups.clear();
1106 V2 = true;
1107 if (R2.match(Name, &Groups))
1108 ID = StringSwitch<Intrinsic::ID>(Groups[1])
1109 .Case("fadd", Intrinsic::vector_reduce_fadd)
1110 .Case("fmul", Intrinsic::vector_reduce_fmul)
1111 .Default(Intrinsic::not_intrinsic);
1112 }
1113 if (ID != Intrinsic::not_intrinsic) {
1114 rename(F);
1115 auto Args = F->getFunctionType()->params();
1116 NewFn =
1117 Intrinsic::getDeclaration(F->getParent(), ID, {Args[V2 ? 1 : 0]});
1118 return true;
1119 }
1120 break; // No other 'expermental.vector.reduce.*'.
1121 }
1122 break; // No other 'experimental.vector.*'.
1123 }
1124 break; // No other 'e*'.
1125 case 'f':
1126 if (Name.starts_with("flt.rounds")) {
1127 rename(F);
1128 NewFn = Intrinsic::getDeclaration(F->getParent(), Intrinsic::get_rounding);
1129 return true;
1130 }
1131 break;
1132 case 'i':
1133 if (Name.starts_with("invariant.group.barrier")) {
1134 // Rename invariant.group.barrier to launder.invariant.group
1135 auto Args = F->getFunctionType()->params();
1136 Type* ObjectPtr[1] = {Args[0]};
1137 rename(F);
1138 NewFn = Intrinsic::getDeclaration(F->getParent(),
1139 Intrinsic::launder_invariant_group, ObjectPtr);
1140 return true;
1141 }
1142 break;
1143 case 'm': {
1144 // Updating the memory intrinsics (memcpy/memmove/memset) that have an
1145 // alignment parameter to embedding the alignment as an attribute of
1146 // the pointer args.
1147 if (unsigned ID = StringSwitch<unsigned>(Name)
1148 .StartsWith("memcpy.", Intrinsic::memcpy)
1149 .StartsWith("memmove.", Intrinsic::memmove)
1150 .Default(0)) {
1151 if (F->arg_size() == 5) {
1152 rename(F);
1153 // Get the types of dest, src, and len
1154 ArrayRef<Type *> ParamTypes =
1155 F->getFunctionType()->params().slice(0, 3);
1156 NewFn = Intrinsic::getDeclaration(F->getParent(), ID, ParamTypes);
1157 return true;
1158 }
1159 }
1160 if (Name.starts_with("memset.") && F->arg_size() == 5) {
1161 rename(F);
1162 // Get the types of dest, and len
1163 const auto *FT = F->getFunctionType();
1164 Type *ParamTypes[2] = {
1165 FT->getParamType(0), // Dest
1166 FT->getParamType(2) // len
1167 };
1168 NewFn = Intrinsic::getDeclaration(F->getParent(), Intrinsic::memset,
1169 ParamTypes);
1170 return true;
1171 }
1172 break;
1173 }
1174 case 'n': {
1175 if (Name.consume_front("nvvm.")) {
1176 // Check for nvvm intrinsics corresponding exactly to an LLVM intrinsic.
1177 if (F->arg_size() == 1) {
1178 Intrinsic::ID IID =
1179 StringSwitch<Intrinsic::ID>(Name)
1180 .Cases("brev32", "brev64", Intrinsic::bitreverse)
1181 .Case("clz.i", Intrinsic::ctlz)
1182 .Case("popc.i", Intrinsic::ctpop)
1183 .Default(Intrinsic::not_intrinsic);
1184 if (IID != Intrinsic::not_intrinsic) {
1185 NewFn = Intrinsic::getDeclaration(F->getParent(), IID,
1186 {F->getReturnType()});
1187 return true;
1188 }
1189 }
1190
1191 // Check for nvvm intrinsics that need a return type adjustment.
1192 if (!F->getReturnType()->getScalarType()->isBFloatTy()) {
1193 Intrinsic::ID IID = shouldUpgradeNVPTXBF16Intrinsic(Name);
1194 if (IID != Intrinsic::not_intrinsic) {
1195 NewFn = nullptr;
1196 return true;
1197 }
1198 }
1199
1200 // The following nvvm intrinsics correspond exactly to an LLVM idiom, but
1201 // not to an intrinsic alone. We expand them in UpgradeIntrinsicCall.
1202 //
1203 // TODO: We could add lohi.i2d.
1204 bool Expand = false;
1205 if (Name.consume_front("abs."))
1206 // nvvm.abs.{i,ii}
1207 Expand = Name == "i" || Name == "ll";
1208 else if (Name == "clz.ll" || Name == "popc.ll" || Name == "h2f")
1209 Expand = true;
1210 else if (Name.consume_front("max.") || Name.consume_front("min."))
1211 // nvvm.{min,max}.{i,ii,ui,ull}
1212 Expand = Name == "s" || Name == "i" || Name == "ll" || Name == "us" ||
1213 Name == "ui" || Name == "ull";
1214 else if (Name.consume_front("atomic.load.add."))
1215 // nvvm.atomic.load.add.{f32.p,f64.p}
1216 Expand = Name.starts_with("f32.p") || Name.starts_with("f64.p");
1217 else
1218 Expand = false;
1219
1220 if (Expand) {
1221 NewFn = nullptr;
1222 return true;
1223 }
1224 break; // No other 'nvvm.*'.
1225 }
1226 break;
1227 }
1228 case 'o':
1229 // We only need to change the name to match the mangling including the
1230 // address space.
1231 if (Name.starts_with("objectsize.")) {
1232 Type *Tys[2] = { F->getReturnType(), F->arg_begin()->getType() };
1233 if (F->arg_size() == 2 || F->arg_size() == 3 ||
1234 F->getName() !=
1235 Intrinsic::getName(Intrinsic::objectsize, Tys, F->getParent())) {
1236 rename(F);
1237 NewFn = Intrinsic::getDeclaration(F->getParent(), Intrinsic::objectsize,
1238 Tys);
1239 return true;
1240 }
1241 }
1242 break;
1243
1244 case 'p':
1245 if (Name.starts_with("ptr.annotation.") && F->arg_size() == 4) {
1246 rename(F);
1247 NewFn = Intrinsic::getDeclaration(
1248 F->getParent(), Intrinsic::ptr_annotation,
1249 {F->arg_begin()->getType(), F->getArg(1)->getType()});
1250 return true;
1251 }
1252 break;
1253
1254 case 'r': {
1255 if (Name.consume_front("riscv.")) {
1256 Intrinsic::ID ID;
1257 ID = StringSwitch<Intrinsic::ID>(Name)
1258 .Case("aes32dsi", Intrinsic::riscv_aes32dsi)
1259 .Case("aes32dsmi", Intrinsic::riscv_aes32dsmi)
1260 .Case("aes32esi", Intrinsic::riscv_aes32esi)
1261 .Case("aes32esmi", Intrinsic::riscv_aes32esmi)
1262 .Default(Intrinsic::not_intrinsic);
1263 if (ID != Intrinsic::not_intrinsic) {
1264 if (!F->getFunctionType()->getParamType(2)->isIntegerTy(32)) {
1265 rename(F);
1266 NewFn = Intrinsic::getDeclaration(F->getParent(), ID);
1267 return true;
1268 }
1269 break; // No other applicable upgrades.
1270 }
1271
1272 ID = StringSwitch<Intrinsic::ID>(Name)
1273 .StartsWith("sm4ks", Intrinsic::riscv_sm4ks)
1274 .StartsWith("sm4ed", Intrinsic::riscv_sm4ed)
1275 .Default(Intrinsic::not_intrinsic);
1276 if (ID != Intrinsic::not_intrinsic) {
1277 if (!F->getFunctionType()->getParamType(2)->isIntegerTy(32) ||
1278 F->getFunctionType()->getReturnType()->isIntegerTy(64)) {
1279 rename(F);
1280 NewFn = Intrinsic::getDeclaration(F->getParent(), ID);
1281 return true;
1282 }
1283 break; // No other applicable upgrades.
1284 }
1285
1286 ID = StringSwitch<Intrinsic::ID>(Name)
1287 .StartsWith("sha256sig0", Intrinsic::riscv_sha256sig0)
1288 .StartsWith("sha256sig1", Intrinsic::riscv_sha256sig1)
1289 .StartsWith("sha256sum0", Intrinsic::riscv_sha256sum0)
1290 .StartsWith("sha256sum1", Intrinsic::riscv_sha256sum1)
1291 .StartsWith("sm3p0", Intrinsic::riscv_sm3p0)
1292 .StartsWith("sm3p1", Intrinsic::riscv_sm3p1)
1293 .Default(Intrinsic::not_intrinsic);
1294 if (ID != Intrinsic::not_intrinsic) {
1295 if (F->getFunctionType()->getReturnType()->isIntegerTy(64)) {
1296 rename(F);
1297 NewFn = Intrinsic::getDeclaration(F->getParent(), ID);
1298 return true;
1299 }
1300 break; // No other applicable upgrades.
1301 }
1302 break; // No other 'riscv.*' intrinsics
1303 }
1304 } break;
1305
1306 case 's':
1307 if (Name == "stackprotectorcheck") {
1308 NewFn = nullptr;
1309 return true;
1310 }
1311 break;
1312
1313 case 'v': {
1314 if (Name == "var.annotation" && F->arg_size() == 4) {
1315 rename(F);
1316 NewFn = Intrinsic::getDeclaration(
1317 F->getParent(), Intrinsic::var_annotation,
1318 {{F->arg_begin()->getType(), F->getArg(1)->getType()}});
1319 return true;
1320 }
1321 break;
1322 }
1323
1324 case 'w':
1325 if (Name.consume_front("wasm.")) {
1326 Intrinsic::ID ID =
1327 StringSwitch<Intrinsic::ID>(Name)
1328 .StartsWith("fma.", Intrinsic::wasm_relaxed_madd)
1329 .StartsWith("fms.", Intrinsic::wasm_relaxed_nmadd)
1330 .StartsWith("laneselect.", Intrinsic::wasm_relaxed_laneselect)
1331 .Default(Intrinsic::not_intrinsic);
1332 if (ID != Intrinsic::not_intrinsic) {
1333 rename(F);
1334 NewFn =
1335 Intrinsic::getDeclaration(F->getParent(), ID, F->getReturnType());
1336 return true;
1337 }
1338
1339 if (Name.consume_front("dot.i8x16.i7x16.")) {
1340 ID = StringSwitch<Intrinsic::ID>(Name)
1341 .Case("signed", Intrinsic::wasm_relaxed_dot_i8x16_i7x16_signed)
1342 .Case("add.signed",
1343 Intrinsic::wasm_relaxed_dot_i8x16_i7x16_add_signed)
1344 .Default(Intrinsic::not_intrinsic);
1345 if (ID != Intrinsic::not_intrinsic) {
1346 rename(F);
1347 NewFn = Intrinsic::getDeclaration(F->getParent(), ID);
1348 return true;
1349 }
1350 break; // No other 'wasm.dot.i8x16.i7x16.*'.
1351 }
1352 break; // No other 'wasm.*'.
1353 }
1354 break;
1355
1356 case 'x':
1357 if (upgradeX86IntrinsicFunction(F, Name, NewFn))
1358 return true;
1359 }
1360
1361 auto *ST = dyn_cast<StructType>(F->getReturnType());
1362 if (ST && (!ST->isLiteral() || ST->isPacked()) &&
1363 F->getIntrinsicID() != Intrinsic::not_intrinsic) {
1364 // Replace return type with literal non-packed struct. Only do this for
1365 // intrinsics declared to return a struct, not for intrinsics with
1366 // overloaded return type, in which case the exact struct type will be
1367 // mangled into the name.
1368 SmallVector<Intrinsic::IITDescriptor> Desc;
1369 Intrinsic::getIntrinsicInfoTableEntries(F->getIntrinsicID(), Desc);
1370 if (Desc.front().Kind == Intrinsic::IITDescriptor::Struct) {
1371 auto *FT = F->getFunctionType();
1372 auto *NewST = StructType::get(ST->getContext(), ST->elements());
1373 auto *NewFT = FunctionType::get(NewST, FT->params(), FT->isVarArg());
1374 std::string Name = F->getName().str();
1375 rename(F);
1376 NewFn = Function::Create(NewFT, F->getLinkage(), F->getAddressSpace(),
1377 Name, F->getParent());
1378
1379 // The new function may also need remangling.
1380 if (auto Result = llvm::Intrinsic::remangleIntrinsicFunction(NewFn))
1381 NewFn = *Result;
1382 return true;
1383 }
1384 }
1385
1386 // Remangle our intrinsic since we upgrade the mangling
1387 auto Result = llvm::Intrinsic::remangleIntrinsicFunction(F);
1388 if (Result != std::nullopt) {
1389 NewFn = *Result;
1390 return true;
1391 }
1392
1393 // This may not belong here. This function is effectively being overloaded
1394 // to both detect an intrinsic which needs upgrading, and to provide the
1395 // upgraded form of the intrinsic. We should perhaps have two separate
1396 // functions for this.
1397 return false;
1398 }
1399
UpgradeIntrinsicFunction(Function * F,Function * & NewFn)1400 bool llvm::UpgradeIntrinsicFunction(Function *F, Function *&NewFn) {
1401 NewFn = nullptr;
1402 bool Upgraded = upgradeIntrinsicFunction1(F, NewFn);
1403 assert(F != NewFn && "Intrinsic function upgraded to the same function");
1404
1405 // Upgrade intrinsic attributes. This does not change the function.
1406 if (NewFn)
1407 F = NewFn;
1408 if (Intrinsic::ID id = F->getIntrinsicID())
1409 F->setAttributes(Intrinsic::getAttributes(F->getContext(), id));
1410 return Upgraded;
1411 }
1412
UpgradeGlobalVariable(GlobalVariable * GV)1413 GlobalVariable *llvm::UpgradeGlobalVariable(GlobalVariable *GV) {
1414 if (!(GV->hasName() && (GV->getName() == "llvm.global_ctors" ||
1415 GV->getName() == "llvm.global_dtors")) ||
1416 !GV->hasInitializer())
1417 return nullptr;
1418 ArrayType *ATy = dyn_cast<ArrayType>(GV->getValueType());
1419 if (!ATy)
1420 return nullptr;
1421 StructType *STy = dyn_cast<StructType>(ATy->getElementType());
1422 if (!STy || STy->getNumElements() != 2)
1423 return nullptr;
1424
1425 LLVMContext &C = GV->getContext();
1426 IRBuilder<> IRB(C);
1427 auto EltTy = StructType::get(STy->getElementType(0), STy->getElementType(1),
1428 IRB.getPtrTy());
1429 Constant *Init = GV->getInitializer();
1430 unsigned N = Init->getNumOperands();
1431 std::vector<Constant *> NewCtors(N);
1432 for (unsigned i = 0; i != N; ++i) {
1433 auto Ctor = cast<Constant>(Init->getOperand(i));
1434 NewCtors[i] = ConstantStruct::get(EltTy, Ctor->getAggregateElement(0u),
1435 Ctor->getAggregateElement(1),
1436 Constant::getNullValue(IRB.getPtrTy()));
1437 }
1438 Constant *NewInit = ConstantArray::get(ArrayType::get(EltTy, N), NewCtors);
1439
1440 return new GlobalVariable(NewInit->getType(), false, GV->getLinkage(),
1441 NewInit, GV->getName());
1442 }
1443
1444 // Handles upgrading SSE2/AVX2/AVX512BW PSLLDQ intrinsics by converting them
1445 // to byte shuffles.
upgradeX86PSLLDQIntrinsics(IRBuilder<> & Builder,Value * Op,unsigned Shift)1446 static Value *upgradeX86PSLLDQIntrinsics(IRBuilder<> &Builder, Value *Op,
1447 unsigned Shift) {
1448 auto *ResultTy = cast<FixedVectorType>(Op->getType());
1449 unsigned NumElts = ResultTy->getNumElements() * 8;
1450
1451 // Bitcast from a 64-bit element type to a byte element type.
1452 Type *VecTy = FixedVectorType::get(Builder.getInt8Ty(), NumElts);
1453 Op = Builder.CreateBitCast(Op, VecTy, "cast");
1454
1455 // We'll be shuffling in zeroes.
1456 Value *Res = Constant::getNullValue(VecTy);
1457
1458 // If shift is less than 16, emit a shuffle to move the bytes. Otherwise,
1459 // we'll just return the zero vector.
1460 if (Shift < 16) {
1461 int Idxs[64];
1462 // 256/512-bit version is split into 2/4 16-byte lanes.
1463 for (unsigned l = 0; l != NumElts; l += 16)
1464 for (unsigned i = 0; i != 16; ++i) {
1465 unsigned Idx = NumElts + i - Shift;
1466 if (Idx < NumElts)
1467 Idx -= NumElts - 16; // end of lane, switch operand.
1468 Idxs[l + i] = Idx + l;
1469 }
1470
1471 Res = Builder.CreateShuffleVector(Res, Op, ArrayRef(Idxs, NumElts));
1472 }
1473
1474 // Bitcast back to a 64-bit element type.
1475 return Builder.CreateBitCast(Res, ResultTy, "cast");
1476 }
1477
1478 // Handles upgrading SSE2/AVX2/AVX512BW PSRLDQ intrinsics by converting them
1479 // to byte shuffles.
upgradeX86PSRLDQIntrinsics(IRBuilder<> & Builder,Value * Op,unsigned Shift)1480 static Value *upgradeX86PSRLDQIntrinsics(IRBuilder<> &Builder, Value *Op,
1481 unsigned Shift) {
1482 auto *ResultTy = cast<FixedVectorType>(Op->getType());
1483 unsigned NumElts = ResultTy->getNumElements() * 8;
1484
1485 // Bitcast from a 64-bit element type to a byte element type.
1486 Type *VecTy = FixedVectorType::get(Builder.getInt8Ty(), NumElts);
1487 Op = Builder.CreateBitCast(Op, VecTy, "cast");
1488
1489 // We'll be shuffling in zeroes.
1490 Value *Res = Constant::getNullValue(VecTy);
1491
1492 // If shift is less than 16, emit a shuffle to move the bytes. Otherwise,
1493 // we'll just return the zero vector.
1494 if (Shift < 16) {
1495 int Idxs[64];
1496 // 256/512-bit version is split into 2/4 16-byte lanes.
1497 for (unsigned l = 0; l != NumElts; l += 16)
1498 for (unsigned i = 0; i != 16; ++i) {
1499 unsigned Idx = i + Shift;
1500 if (Idx >= 16)
1501 Idx += NumElts - 16; // end of lane, switch operand.
1502 Idxs[l + i] = Idx + l;
1503 }
1504
1505 Res = Builder.CreateShuffleVector(Op, Res, ArrayRef(Idxs, NumElts));
1506 }
1507
1508 // Bitcast back to a 64-bit element type.
1509 return Builder.CreateBitCast(Res, ResultTy, "cast");
1510 }
1511
getX86MaskVec(IRBuilder<> & Builder,Value * Mask,unsigned NumElts)1512 static Value *getX86MaskVec(IRBuilder<> &Builder, Value *Mask,
1513 unsigned NumElts) {
1514 assert(isPowerOf2_32(NumElts) && "Expected power-of-2 mask elements");
1515 llvm::VectorType *MaskTy = FixedVectorType::get(
1516 Builder.getInt1Ty(), cast<IntegerType>(Mask->getType())->getBitWidth());
1517 Mask = Builder.CreateBitCast(Mask, MaskTy);
1518
1519 // If we have less than 8 elements (1, 2 or 4), then the starting mask was an
1520 // i8 and we need to extract down to the right number of elements.
1521 if (NumElts <= 4) {
1522 int Indices[4];
1523 for (unsigned i = 0; i != NumElts; ++i)
1524 Indices[i] = i;
1525 Mask = Builder.CreateShuffleVector(Mask, Mask, ArrayRef(Indices, NumElts),
1526 "extract");
1527 }
1528
1529 return Mask;
1530 }
1531
emitX86Select(IRBuilder<> & Builder,Value * Mask,Value * Op0,Value * Op1)1532 static Value *emitX86Select(IRBuilder<> &Builder, Value *Mask, Value *Op0,
1533 Value *Op1) {
1534 // If the mask is all ones just emit the first operation.
1535 if (const auto *C = dyn_cast<Constant>(Mask))
1536 if (C->isAllOnesValue())
1537 return Op0;
1538
1539 Mask = getX86MaskVec(Builder, Mask,
1540 cast<FixedVectorType>(Op0->getType())->getNumElements());
1541 return Builder.CreateSelect(Mask, Op0, Op1);
1542 }
1543
emitX86ScalarSelect(IRBuilder<> & Builder,Value * Mask,Value * Op0,Value * Op1)1544 static Value *emitX86ScalarSelect(IRBuilder<> &Builder, Value *Mask, Value *Op0,
1545 Value *Op1) {
1546 // If the mask is all ones just emit the first operation.
1547 if (const auto *C = dyn_cast<Constant>(Mask))
1548 if (C->isAllOnesValue())
1549 return Op0;
1550
1551 auto *MaskTy = FixedVectorType::get(Builder.getInt1Ty(),
1552 Mask->getType()->getIntegerBitWidth());
1553 Mask = Builder.CreateBitCast(Mask, MaskTy);
1554 Mask = Builder.CreateExtractElement(Mask, (uint64_t)0);
1555 return Builder.CreateSelect(Mask, Op0, Op1);
1556 }
1557
1558 // Handle autoupgrade for masked PALIGNR and VALIGND/Q intrinsics.
1559 // PALIGNR handles large immediates by shifting while VALIGN masks the immediate
1560 // so we need to handle both cases. VALIGN also doesn't have 128-bit lanes.
upgradeX86ALIGNIntrinsics(IRBuilder<> & Builder,Value * Op0,Value * Op1,Value * Shift,Value * Passthru,Value * Mask,bool IsVALIGN)1561 static Value *upgradeX86ALIGNIntrinsics(IRBuilder<> &Builder, Value *Op0,
1562 Value *Op1, Value *Shift,
1563 Value *Passthru, Value *Mask,
1564 bool IsVALIGN) {
1565 unsigned ShiftVal = cast<llvm::ConstantInt>(Shift)->getZExtValue();
1566
1567 unsigned NumElts = cast<FixedVectorType>(Op0->getType())->getNumElements();
1568 assert((IsVALIGN || NumElts % 16 == 0) && "Illegal NumElts for PALIGNR!");
1569 assert((!IsVALIGN || NumElts <= 16) && "NumElts too large for VALIGN!");
1570 assert(isPowerOf2_32(NumElts) && "NumElts not a power of 2!");
1571
1572 // Mask the immediate for VALIGN.
1573 if (IsVALIGN)
1574 ShiftVal &= (NumElts - 1);
1575
1576 // If palignr is shifting the pair of vectors more than the size of two
1577 // lanes, emit zero.
1578 if (ShiftVal >= 32)
1579 return llvm::Constant::getNullValue(Op0->getType());
1580
1581 // If palignr is shifting the pair of input vectors more than one lane,
1582 // but less than two lanes, convert to shifting in zeroes.
1583 if (ShiftVal > 16) {
1584 ShiftVal -= 16;
1585 Op1 = Op0;
1586 Op0 = llvm::Constant::getNullValue(Op0->getType());
1587 }
1588
1589 int Indices[64];
1590 // 256-bit palignr operates on 128-bit lanes so we need to handle that
1591 for (unsigned l = 0; l < NumElts; l += 16) {
1592 for (unsigned i = 0; i != 16; ++i) {
1593 unsigned Idx = ShiftVal + i;
1594 if (!IsVALIGN && Idx >= 16) // Disable wrap for VALIGN.
1595 Idx += NumElts - 16; // End of lane, switch operand.
1596 Indices[l + i] = Idx + l;
1597 }
1598 }
1599
1600 Value *Align = Builder.CreateShuffleVector(
1601 Op1, Op0, ArrayRef(Indices, NumElts), "palignr");
1602
1603 return emitX86Select(Builder, Mask, Align, Passthru);
1604 }
1605
upgradeX86VPERMT2Intrinsics(IRBuilder<> & Builder,CallBase & CI,bool ZeroMask,bool IndexForm)1606 static Value *upgradeX86VPERMT2Intrinsics(IRBuilder<> &Builder, CallBase &CI,
1607 bool ZeroMask, bool IndexForm) {
1608 Type *Ty = CI.getType();
1609 unsigned VecWidth = Ty->getPrimitiveSizeInBits();
1610 unsigned EltWidth = Ty->getScalarSizeInBits();
1611 bool IsFloat = Ty->isFPOrFPVectorTy();
1612 Intrinsic::ID IID;
1613 if (VecWidth == 128 && EltWidth == 32 && IsFloat)
1614 IID = Intrinsic::x86_avx512_vpermi2var_ps_128;
1615 else if (VecWidth == 128 && EltWidth == 32 && !IsFloat)
1616 IID = Intrinsic::x86_avx512_vpermi2var_d_128;
1617 else if (VecWidth == 128 && EltWidth == 64 && IsFloat)
1618 IID = Intrinsic::x86_avx512_vpermi2var_pd_128;
1619 else if (VecWidth == 128 && EltWidth == 64 && !IsFloat)
1620 IID = Intrinsic::x86_avx512_vpermi2var_q_128;
1621 else if (VecWidth == 256 && EltWidth == 32 && IsFloat)
1622 IID = Intrinsic::x86_avx512_vpermi2var_ps_256;
1623 else if (VecWidth == 256 && EltWidth == 32 && !IsFloat)
1624 IID = Intrinsic::x86_avx512_vpermi2var_d_256;
1625 else if (VecWidth == 256 && EltWidth == 64 && IsFloat)
1626 IID = Intrinsic::x86_avx512_vpermi2var_pd_256;
1627 else if (VecWidth == 256 && EltWidth == 64 && !IsFloat)
1628 IID = Intrinsic::x86_avx512_vpermi2var_q_256;
1629 else if (VecWidth == 512 && EltWidth == 32 && IsFloat)
1630 IID = Intrinsic::x86_avx512_vpermi2var_ps_512;
1631 else if (VecWidth == 512 && EltWidth == 32 && !IsFloat)
1632 IID = Intrinsic::x86_avx512_vpermi2var_d_512;
1633 else if (VecWidth == 512 && EltWidth == 64 && IsFloat)
1634 IID = Intrinsic::x86_avx512_vpermi2var_pd_512;
1635 else if (VecWidth == 512 && EltWidth == 64 && !IsFloat)
1636 IID = Intrinsic::x86_avx512_vpermi2var_q_512;
1637 else if (VecWidth == 128 && EltWidth == 16)
1638 IID = Intrinsic::x86_avx512_vpermi2var_hi_128;
1639 else if (VecWidth == 256 && EltWidth == 16)
1640 IID = Intrinsic::x86_avx512_vpermi2var_hi_256;
1641 else if (VecWidth == 512 && EltWidth == 16)
1642 IID = Intrinsic::x86_avx512_vpermi2var_hi_512;
1643 else if (VecWidth == 128 && EltWidth == 8)
1644 IID = Intrinsic::x86_avx512_vpermi2var_qi_128;
1645 else if (VecWidth == 256 && EltWidth == 8)
1646 IID = Intrinsic::x86_avx512_vpermi2var_qi_256;
1647 else if (VecWidth == 512 && EltWidth == 8)
1648 IID = Intrinsic::x86_avx512_vpermi2var_qi_512;
1649 else
1650 llvm_unreachable("Unexpected intrinsic");
1651
1652 Value *Args[] = { CI.getArgOperand(0) , CI.getArgOperand(1),
1653 CI.getArgOperand(2) };
1654
1655 // If this isn't index form we need to swap operand 0 and 1.
1656 if (!IndexForm)
1657 std::swap(Args[0], Args[1]);
1658
1659 Value *V = Builder.CreateCall(Intrinsic::getDeclaration(CI.getModule(), IID),
1660 Args);
1661 Value *PassThru = ZeroMask ? ConstantAggregateZero::get(Ty)
1662 : Builder.CreateBitCast(CI.getArgOperand(1),
1663 Ty);
1664 return emitX86Select(Builder, CI.getArgOperand(3), V, PassThru);
1665 }
1666
upgradeX86BinaryIntrinsics(IRBuilder<> & Builder,CallBase & CI,Intrinsic::ID IID)1667 static Value *upgradeX86BinaryIntrinsics(IRBuilder<> &Builder, CallBase &CI,
1668 Intrinsic::ID IID) {
1669 Type *Ty = CI.getType();
1670 Value *Op0 = CI.getOperand(0);
1671 Value *Op1 = CI.getOperand(1);
1672 Function *Intrin = Intrinsic::getDeclaration(CI.getModule(), IID, Ty);
1673 Value *Res = Builder.CreateCall(Intrin, {Op0, Op1});
1674
1675 if (CI.arg_size() == 4) { // For masked intrinsics.
1676 Value *VecSrc = CI.getOperand(2);
1677 Value *Mask = CI.getOperand(3);
1678 Res = emitX86Select(Builder, Mask, Res, VecSrc);
1679 }
1680 return Res;
1681 }
1682
upgradeX86Rotate(IRBuilder<> & Builder,CallBase & CI,bool IsRotateRight)1683 static Value *upgradeX86Rotate(IRBuilder<> &Builder, CallBase &CI,
1684 bool IsRotateRight) {
1685 Type *Ty = CI.getType();
1686 Value *Src = CI.getArgOperand(0);
1687 Value *Amt = CI.getArgOperand(1);
1688
1689 // Amount may be scalar immediate, in which case create a splat vector.
1690 // Funnel shifts amounts are treated as modulo and types are all power-of-2 so
1691 // we only care about the lowest log2 bits anyway.
1692 if (Amt->getType() != Ty) {
1693 unsigned NumElts = cast<FixedVectorType>(Ty)->getNumElements();
1694 Amt = Builder.CreateIntCast(Amt, Ty->getScalarType(), false);
1695 Amt = Builder.CreateVectorSplat(NumElts, Amt);
1696 }
1697
1698 Intrinsic::ID IID = IsRotateRight ? Intrinsic::fshr : Intrinsic::fshl;
1699 Function *Intrin = Intrinsic::getDeclaration(CI.getModule(), IID, Ty);
1700 Value *Res = Builder.CreateCall(Intrin, {Src, Src, Amt});
1701
1702 if (CI.arg_size() == 4) { // For masked intrinsics.
1703 Value *VecSrc = CI.getOperand(2);
1704 Value *Mask = CI.getOperand(3);
1705 Res = emitX86Select(Builder, Mask, Res, VecSrc);
1706 }
1707 return Res;
1708 }
1709
upgradeX86vpcom(IRBuilder<> & Builder,CallBase & CI,unsigned Imm,bool IsSigned)1710 static Value *upgradeX86vpcom(IRBuilder<> &Builder, CallBase &CI, unsigned Imm,
1711 bool IsSigned) {
1712 Type *Ty = CI.getType();
1713 Value *LHS = CI.getArgOperand(0);
1714 Value *RHS = CI.getArgOperand(1);
1715
1716 CmpInst::Predicate Pred;
1717 switch (Imm) {
1718 case 0x0:
1719 Pred = IsSigned ? ICmpInst::ICMP_SLT : ICmpInst::ICMP_ULT;
1720 break;
1721 case 0x1:
1722 Pred = IsSigned ? ICmpInst::ICMP_SLE : ICmpInst::ICMP_ULE;
1723 break;
1724 case 0x2:
1725 Pred = IsSigned ? ICmpInst::ICMP_SGT : ICmpInst::ICMP_UGT;
1726 break;
1727 case 0x3:
1728 Pred = IsSigned ? ICmpInst::ICMP_SGE : ICmpInst::ICMP_UGE;
1729 break;
1730 case 0x4:
1731 Pred = ICmpInst::ICMP_EQ;
1732 break;
1733 case 0x5:
1734 Pred = ICmpInst::ICMP_NE;
1735 break;
1736 case 0x6:
1737 return Constant::getNullValue(Ty); // FALSE
1738 case 0x7:
1739 return Constant::getAllOnesValue(Ty); // TRUE
1740 default:
1741 llvm_unreachable("Unknown XOP vpcom/vpcomu predicate");
1742 }
1743
1744 Value *Cmp = Builder.CreateICmp(Pred, LHS, RHS);
1745 Value *Ext = Builder.CreateSExt(Cmp, Ty);
1746 return Ext;
1747 }
1748
upgradeX86ConcatShift(IRBuilder<> & Builder,CallBase & CI,bool IsShiftRight,bool ZeroMask)1749 static Value *upgradeX86ConcatShift(IRBuilder<> &Builder, CallBase &CI,
1750 bool IsShiftRight, bool ZeroMask) {
1751 Type *Ty = CI.getType();
1752 Value *Op0 = CI.getArgOperand(0);
1753 Value *Op1 = CI.getArgOperand(1);
1754 Value *Amt = CI.getArgOperand(2);
1755
1756 if (IsShiftRight)
1757 std::swap(Op0, Op1);
1758
1759 // Amount may be scalar immediate, in which case create a splat vector.
1760 // Funnel shifts amounts are treated as modulo and types are all power-of-2 so
1761 // we only care about the lowest log2 bits anyway.
1762 if (Amt->getType() != Ty) {
1763 unsigned NumElts = cast<FixedVectorType>(Ty)->getNumElements();
1764 Amt = Builder.CreateIntCast(Amt, Ty->getScalarType(), false);
1765 Amt = Builder.CreateVectorSplat(NumElts, Amt);
1766 }
1767
1768 Intrinsic::ID IID = IsShiftRight ? Intrinsic::fshr : Intrinsic::fshl;
1769 Function *Intrin = Intrinsic::getDeclaration(CI.getModule(), IID, Ty);
1770 Value *Res = Builder.CreateCall(Intrin, {Op0, Op1, Amt});
1771
1772 unsigned NumArgs = CI.arg_size();
1773 if (NumArgs >= 4) { // For masked intrinsics.
1774 Value *VecSrc = NumArgs == 5 ? CI.getArgOperand(3) :
1775 ZeroMask ? ConstantAggregateZero::get(CI.getType()) :
1776 CI.getArgOperand(0);
1777 Value *Mask = CI.getOperand(NumArgs - 1);
1778 Res = emitX86Select(Builder, Mask, Res, VecSrc);
1779 }
1780 return Res;
1781 }
1782
upgradeMaskedStore(IRBuilder<> & Builder,Value * Ptr,Value * Data,Value * Mask,bool Aligned)1783 static Value *upgradeMaskedStore(IRBuilder<> &Builder, Value *Ptr, Value *Data,
1784 Value *Mask, bool Aligned) {
1785 // Cast the pointer to the right type.
1786 Ptr = Builder.CreateBitCast(Ptr,
1787 llvm::PointerType::getUnqual(Data->getType()));
1788 const Align Alignment =
1789 Aligned
1790 ? Align(Data->getType()->getPrimitiveSizeInBits().getFixedValue() / 8)
1791 : Align(1);
1792
1793 // If the mask is all ones just emit a regular store.
1794 if (const auto *C = dyn_cast<Constant>(Mask))
1795 if (C->isAllOnesValue())
1796 return Builder.CreateAlignedStore(Data, Ptr, Alignment);
1797
1798 // Convert the mask from an integer type to a vector of i1.
1799 unsigned NumElts = cast<FixedVectorType>(Data->getType())->getNumElements();
1800 Mask = getX86MaskVec(Builder, Mask, NumElts);
1801 return Builder.CreateMaskedStore(Data, Ptr, Alignment, Mask);
1802 }
1803
upgradeMaskedLoad(IRBuilder<> & Builder,Value * Ptr,Value * Passthru,Value * Mask,bool Aligned)1804 static Value *upgradeMaskedLoad(IRBuilder<> &Builder, Value *Ptr,
1805 Value *Passthru, Value *Mask, bool Aligned) {
1806 Type *ValTy = Passthru->getType();
1807 // Cast the pointer to the right type.
1808 Ptr = Builder.CreateBitCast(Ptr, llvm::PointerType::getUnqual(ValTy));
1809 const Align Alignment =
1810 Aligned
1811 ? Align(
1812 Passthru->getType()->getPrimitiveSizeInBits().getFixedValue() /
1813 8)
1814 : Align(1);
1815
1816 // If the mask is all ones just emit a regular store.
1817 if (const auto *C = dyn_cast<Constant>(Mask))
1818 if (C->isAllOnesValue())
1819 return Builder.CreateAlignedLoad(ValTy, Ptr, Alignment);
1820
1821 // Convert the mask from an integer type to a vector of i1.
1822 unsigned NumElts = cast<FixedVectorType>(ValTy)->getNumElements();
1823 Mask = getX86MaskVec(Builder, Mask, NumElts);
1824 return Builder.CreateMaskedLoad(ValTy, Ptr, Alignment, Mask, Passthru);
1825 }
1826
upgradeAbs(IRBuilder<> & Builder,CallBase & CI)1827 static Value *upgradeAbs(IRBuilder<> &Builder, CallBase &CI) {
1828 Type *Ty = CI.getType();
1829 Value *Op0 = CI.getArgOperand(0);
1830 Function *F = Intrinsic::getDeclaration(CI.getModule(), Intrinsic::abs, Ty);
1831 Value *Res = Builder.CreateCall(F, {Op0, Builder.getInt1(false)});
1832 if (CI.arg_size() == 3)
1833 Res = emitX86Select(Builder, CI.getArgOperand(2), Res, CI.getArgOperand(1));
1834 return Res;
1835 }
1836
upgradePMULDQ(IRBuilder<> & Builder,CallBase & CI,bool IsSigned)1837 static Value *upgradePMULDQ(IRBuilder<> &Builder, CallBase &CI, bool IsSigned) {
1838 Type *Ty = CI.getType();
1839
1840 // Arguments have a vXi32 type so cast to vXi64.
1841 Value *LHS = Builder.CreateBitCast(CI.getArgOperand(0), Ty);
1842 Value *RHS = Builder.CreateBitCast(CI.getArgOperand(1), Ty);
1843
1844 if (IsSigned) {
1845 // Shift left then arithmetic shift right.
1846 Constant *ShiftAmt = ConstantInt::get(Ty, 32);
1847 LHS = Builder.CreateShl(LHS, ShiftAmt);
1848 LHS = Builder.CreateAShr(LHS, ShiftAmt);
1849 RHS = Builder.CreateShl(RHS, ShiftAmt);
1850 RHS = Builder.CreateAShr(RHS, ShiftAmt);
1851 } else {
1852 // Clear the upper bits.
1853 Constant *Mask = ConstantInt::get(Ty, 0xffffffff);
1854 LHS = Builder.CreateAnd(LHS, Mask);
1855 RHS = Builder.CreateAnd(RHS, Mask);
1856 }
1857
1858 Value *Res = Builder.CreateMul(LHS, RHS);
1859
1860 if (CI.arg_size() == 4)
1861 Res = emitX86Select(Builder, CI.getArgOperand(3), Res, CI.getArgOperand(2));
1862
1863 return Res;
1864 }
1865
1866 // Applying mask on vector of i1's and make sure result is at least 8 bits wide.
applyX86MaskOn1BitsVec(IRBuilder<> & Builder,Value * Vec,Value * Mask)1867 static Value *applyX86MaskOn1BitsVec(IRBuilder<> &Builder, Value *Vec,
1868 Value *Mask) {
1869 unsigned NumElts = cast<FixedVectorType>(Vec->getType())->getNumElements();
1870 if (Mask) {
1871 const auto *C = dyn_cast<Constant>(Mask);
1872 if (!C || !C->isAllOnesValue())
1873 Vec = Builder.CreateAnd(Vec, getX86MaskVec(Builder, Mask, NumElts));
1874 }
1875
1876 if (NumElts < 8) {
1877 int Indices[8];
1878 for (unsigned i = 0; i != NumElts; ++i)
1879 Indices[i] = i;
1880 for (unsigned i = NumElts; i != 8; ++i)
1881 Indices[i] = NumElts + i % NumElts;
1882 Vec = Builder.CreateShuffleVector(Vec,
1883 Constant::getNullValue(Vec->getType()),
1884 Indices);
1885 }
1886 return Builder.CreateBitCast(Vec, Builder.getIntNTy(std::max(NumElts, 8U)));
1887 }
1888
upgradeMaskedCompare(IRBuilder<> & Builder,CallBase & CI,unsigned CC,bool Signed)1889 static Value *upgradeMaskedCompare(IRBuilder<> &Builder, CallBase &CI,
1890 unsigned CC, bool Signed) {
1891 Value *Op0 = CI.getArgOperand(0);
1892 unsigned NumElts = cast<FixedVectorType>(Op0->getType())->getNumElements();
1893
1894 Value *Cmp;
1895 if (CC == 3) {
1896 Cmp = Constant::getNullValue(
1897 FixedVectorType::get(Builder.getInt1Ty(), NumElts));
1898 } else if (CC == 7) {
1899 Cmp = Constant::getAllOnesValue(
1900 FixedVectorType::get(Builder.getInt1Ty(), NumElts));
1901 } else {
1902 ICmpInst::Predicate Pred;
1903 switch (CC) {
1904 default: llvm_unreachable("Unknown condition code");
1905 case 0: Pred = ICmpInst::ICMP_EQ; break;
1906 case 1: Pred = Signed ? ICmpInst::ICMP_SLT : ICmpInst::ICMP_ULT; break;
1907 case 2: Pred = Signed ? ICmpInst::ICMP_SLE : ICmpInst::ICMP_ULE; break;
1908 case 4: Pred = ICmpInst::ICMP_NE; break;
1909 case 5: Pred = Signed ? ICmpInst::ICMP_SGE : ICmpInst::ICMP_UGE; break;
1910 case 6: Pred = Signed ? ICmpInst::ICMP_SGT : ICmpInst::ICMP_UGT; break;
1911 }
1912 Cmp = Builder.CreateICmp(Pred, Op0, CI.getArgOperand(1));
1913 }
1914
1915 Value *Mask = CI.getArgOperand(CI.arg_size() - 1);
1916
1917 return applyX86MaskOn1BitsVec(Builder, Cmp, Mask);
1918 }
1919
1920 // Replace a masked intrinsic with an older unmasked intrinsic.
upgradeX86MaskedShift(IRBuilder<> & Builder,CallBase & CI,Intrinsic::ID IID)1921 static Value *upgradeX86MaskedShift(IRBuilder<> &Builder, CallBase &CI,
1922 Intrinsic::ID IID) {
1923 Function *Intrin = Intrinsic::getDeclaration(CI.getModule(), IID);
1924 Value *Rep = Builder.CreateCall(Intrin,
1925 { CI.getArgOperand(0), CI.getArgOperand(1) });
1926 return emitX86Select(Builder, CI.getArgOperand(3), Rep, CI.getArgOperand(2));
1927 }
1928
upgradeMaskedMove(IRBuilder<> & Builder,CallBase & CI)1929 static Value *upgradeMaskedMove(IRBuilder<> &Builder, CallBase &CI) {
1930 Value* A = CI.getArgOperand(0);
1931 Value* B = CI.getArgOperand(1);
1932 Value* Src = CI.getArgOperand(2);
1933 Value* Mask = CI.getArgOperand(3);
1934
1935 Value* AndNode = Builder.CreateAnd(Mask, APInt(8, 1));
1936 Value* Cmp = Builder.CreateIsNotNull(AndNode);
1937 Value* Extract1 = Builder.CreateExtractElement(B, (uint64_t)0);
1938 Value* Extract2 = Builder.CreateExtractElement(Src, (uint64_t)0);
1939 Value* Select = Builder.CreateSelect(Cmp, Extract1, Extract2);
1940 return Builder.CreateInsertElement(A, Select, (uint64_t)0);
1941 }
1942
upgradeMaskToInt(IRBuilder<> & Builder,CallBase & CI)1943 static Value *upgradeMaskToInt(IRBuilder<> &Builder, CallBase &CI) {
1944 Value* Op = CI.getArgOperand(0);
1945 Type* ReturnOp = CI.getType();
1946 unsigned NumElts = cast<FixedVectorType>(CI.getType())->getNumElements();
1947 Value *Mask = getX86MaskVec(Builder, Op, NumElts);
1948 return Builder.CreateSExt(Mask, ReturnOp, "vpmovm2");
1949 }
1950
1951 // Replace intrinsic with unmasked version and a select.
upgradeAVX512MaskToSelect(StringRef Name,IRBuilder<> & Builder,CallBase & CI,Value * & Rep)1952 static bool upgradeAVX512MaskToSelect(StringRef Name, IRBuilder<> &Builder,
1953 CallBase &CI, Value *&Rep) {
1954 Name = Name.substr(12); // Remove avx512.mask.
1955
1956 unsigned VecWidth = CI.getType()->getPrimitiveSizeInBits();
1957 unsigned EltWidth = CI.getType()->getScalarSizeInBits();
1958 Intrinsic::ID IID;
1959 if (Name.starts_with("max.p")) {
1960 if (VecWidth == 128 && EltWidth == 32)
1961 IID = Intrinsic::x86_sse_max_ps;
1962 else if (VecWidth == 128 && EltWidth == 64)
1963 IID = Intrinsic::x86_sse2_max_pd;
1964 else if (VecWidth == 256 && EltWidth == 32)
1965 IID = Intrinsic::x86_avx_max_ps_256;
1966 else if (VecWidth == 256 && EltWidth == 64)
1967 IID = Intrinsic::x86_avx_max_pd_256;
1968 else
1969 llvm_unreachable("Unexpected intrinsic");
1970 } else if (Name.starts_with("min.p")) {
1971 if (VecWidth == 128 && EltWidth == 32)
1972 IID = Intrinsic::x86_sse_min_ps;
1973 else if (VecWidth == 128 && EltWidth == 64)
1974 IID = Intrinsic::x86_sse2_min_pd;
1975 else if (VecWidth == 256 && EltWidth == 32)
1976 IID = Intrinsic::x86_avx_min_ps_256;
1977 else if (VecWidth == 256 && EltWidth == 64)
1978 IID = Intrinsic::x86_avx_min_pd_256;
1979 else
1980 llvm_unreachable("Unexpected intrinsic");
1981 } else if (Name.starts_with("pshuf.b.")) {
1982 if (VecWidth == 128)
1983 IID = Intrinsic::x86_ssse3_pshuf_b_128;
1984 else if (VecWidth == 256)
1985 IID = Intrinsic::x86_avx2_pshuf_b;
1986 else if (VecWidth == 512)
1987 IID = Intrinsic::x86_avx512_pshuf_b_512;
1988 else
1989 llvm_unreachable("Unexpected intrinsic");
1990 } else if (Name.starts_with("pmul.hr.sw.")) {
1991 if (VecWidth == 128)
1992 IID = Intrinsic::x86_ssse3_pmul_hr_sw_128;
1993 else if (VecWidth == 256)
1994 IID = Intrinsic::x86_avx2_pmul_hr_sw;
1995 else if (VecWidth == 512)
1996 IID = Intrinsic::x86_avx512_pmul_hr_sw_512;
1997 else
1998 llvm_unreachable("Unexpected intrinsic");
1999 } else if (Name.starts_with("pmulh.w.")) {
2000 if (VecWidth == 128)
2001 IID = Intrinsic::x86_sse2_pmulh_w;
2002 else if (VecWidth == 256)
2003 IID = Intrinsic::x86_avx2_pmulh_w;
2004 else if (VecWidth == 512)
2005 IID = Intrinsic::x86_avx512_pmulh_w_512;
2006 else
2007 llvm_unreachable("Unexpected intrinsic");
2008 } else if (Name.starts_with("pmulhu.w.")) {
2009 if (VecWidth == 128)
2010 IID = Intrinsic::x86_sse2_pmulhu_w;
2011 else if (VecWidth == 256)
2012 IID = Intrinsic::x86_avx2_pmulhu_w;
2013 else if (VecWidth == 512)
2014 IID = Intrinsic::x86_avx512_pmulhu_w_512;
2015 else
2016 llvm_unreachable("Unexpected intrinsic");
2017 } else if (Name.starts_with("pmaddw.d.")) {
2018 if (VecWidth == 128)
2019 IID = Intrinsic::x86_sse2_pmadd_wd;
2020 else if (VecWidth == 256)
2021 IID = Intrinsic::x86_avx2_pmadd_wd;
2022 else if (VecWidth == 512)
2023 IID = Intrinsic::x86_avx512_pmaddw_d_512;
2024 else
2025 llvm_unreachable("Unexpected intrinsic");
2026 } else if (Name.starts_with("pmaddubs.w.")) {
2027 if (VecWidth == 128)
2028 IID = Intrinsic::x86_ssse3_pmadd_ub_sw_128;
2029 else if (VecWidth == 256)
2030 IID = Intrinsic::x86_avx2_pmadd_ub_sw;
2031 else if (VecWidth == 512)
2032 IID = Intrinsic::x86_avx512_pmaddubs_w_512;
2033 else
2034 llvm_unreachable("Unexpected intrinsic");
2035 } else if (Name.starts_with("packsswb.")) {
2036 if (VecWidth == 128)
2037 IID = Intrinsic::x86_sse2_packsswb_128;
2038 else if (VecWidth == 256)
2039 IID = Intrinsic::x86_avx2_packsswb;
2040 else if (VecWidth == 512)
2041 IID = Intrinsic::x86_avx512_packsswb_512;
2042 else
2043 llvm_unreachable("Unexpected intrinsic");
2044 } else if (Name.starts_with("packssdw.")) {
2045 if (VecWidth == 128)
2046 IID = Intrinsic::x86_sse2_packssdw_128;
2047 else if (VecWidth == 256)
2048 IID = Intrinsic::x86_avx2_packssdw;
2049 else if (VecWidth == 512)
2050 IID = Intrinsic::x86_avx512_packssdw_512;
2051 else
2052 llvm_unreachable("Unexpected intrinsic");
2053 } else if (Name.starts_with("packuswb.")) {
2054 if (VecWidth == 128)
2055 IID = Intrinsic::x86_sse2_packuswb_128;
2056 else if (VecWidth == 256)
2057 IID = Intrinsic::x86_avx2_packuswb;
2058 else if (VecWidth == 512)
2059 IID = Intrinsic::x86_avx512_packuswb_512;
2060 else
2061 llvm_unreachable("Unexpected intrinsic");
2062 } else if (Name.starts_with("packusdw.")) {
2063 if (VecWidth == 128)
2064 IID = Intrinsic::x86_sse41_packusdw;
2065 else if (VecWidth == 256)
2066 IID = Intrinsic::x86_avx2_packusdw;
2067 else if (VecWidth == 512)
2068 IID = Intrinsic::x86_avx512_packusdw_512;
2069 else
2070 llvm_unreachable("Unexpected intrinsic");
2071 } else if (Name.starts_with("vpermilvar.")) {
2072 if (VecWidth == 128 && EltWidth == 32)
2073 IID = Intrinsic::x86_avx_vpermilvar_ps;
2074 else if (VecWidth == 128 && EltWidth == 64)
2075 IID = Intrinsic::x86_avx_vpermilvar_pd;
2076 else if (VecWidth == 256 && EltWidth == 32)
2077 IID = Intrinsic::x86_avx_vpermilvar_ps_256;
2078 else if (VecWidth == 256 && EltWidth == 64)
2079 IID = Intrinsic::x86_avx_vpermilvar_pd_256;
2080 else if (VecWidth == 512 && EltWidth == 32)
2081 IID = Intrinsic::x86_avx512_vpermilvar_ps_512;
2082 else if (VecWidth == 512 && EltWidth == 64)
2083 IID = Intrinsic::x86_avx512_vpermilvar_pd_512;
2084 else
2085 llvm_unreachable("Unexpected intrinsic");
2086 } else if (Name == "cvtpd2dq.256") {
2087 IID = Intrinsic::x86_avx_cvt_pd2dq_256;
2088 } else if (Name == "cvtpd2ps.256") {
2089 IID = Intrinsic::x86_avx_cvt_pd2_ps_256;
2090 } else if (Name == "cvttpd2dq.256") {
2091 IID = Intrinsic::x86_avx_cvtt_pd2dq_256;
2092 } else if (Name == "cvttps2dq.128") {
2093 IID = Intrinsic::x86_sse2_cvttps2dq;
2094 } else if (Name == "cvttps2dq.256") {
2095 IID = Intrinsic::x86_avx_cvtt_ps2dq_256;
2096 } else if (Name.starts_with("permvar.")) {
2097 bool IsFloat = CI.getType()->isFPOrFPVectorTy();
2098 if (VecWidth == 256 && EltWidth == 32 && IsFloat)
2099 IID = Intrinsic::x86_avx2_permps;
2100 else if (VecWidth == 256 && EltWidth == 32 && !IsFloat)
2101 IID = Intrinsic::x86_avx2_permd;
2102 else if (VecWidth == 256 && EltWidth == 64 && IsFloat)
2103 IID = Intrinsic::x86_avx512_permvar_df_256;
2104 else if (VecWidth == 256 && EltWidth == 64 && !IsFloat)
2105 IID = Intrinsic::x86_avx512_permvar_di_256;
2106 else if (VecWidth == 512 && EltWidth == 32 && IsFloat)
2107 IID = Intrinsic::x86_avx512_permvar_sf_512;
2108 else if (VecWidth == 512 && EltWidth == 32 && !IsFloat)
2109 IID = Intrinsic::x86_avx512_permvar_si_512;
2110 else if (VecWidth == 512 && EltWidth == 64 && IsFloat)
2111 IID = Intrinsic::x86_avx512_permvar_df_512;
2112 else if (VecWidth == 512 && EltWidth == 64 && !IsFloat)
2113 IID = Intrinsic::x86_avx512_permvar_di_512;
2114 else if (VecWidth == 128 && EltWidth == 16)
2115 IID = Intrinsic::x86_avx512_permvar_hi_128;
2116 else if (VecWidth == 256 && EltWidth == 16)
2117 IID = Intrinsic::x86_avx512_permvar_hi_256;
2118 else if (VecWidth == 512 && EltWidth == 16)
2119 IID = Intrinsic::x86_avx512_permvar_hi_512;
2120 else if (VecWidth == 128 && EltWidth == 8)
2121 IID = Intrinsic::x86_avx512_permvar_qi_128;
2122 else if (VecWidth == 256 && EltWidth == 8)
2123 IID = Intrinsic::x86_avx512_permvar_qi_256;
2124 else if (VecWidth == 512 && EltWidth == 8)
2125 IID = Intrinsic::x86_avx512_permvar_qi_512;
2126 else
2127 llvm_unreachable("Unexpected intrinsic");
2128 } else if (Name.starts_with("dbpsadbw.")) {
2129 if (VecWidth == 128)
2130 IID = Intrinsic::x86_avx512_dbpsadbw_128;
2131 else if (VecWidth == 256)
2132 IID = Intrinsic::x86_avx512_dbpsadbw_256;
2133 else if (VecWidth == 512)
2134 IID = Intrinsic::x86_avx512_dbpsadbw_512;
2135 else
2136 llvm_unreachable("Unexpected intrinsic");
2137 } else if (Name.starts_with("pmultishift.qb.")) {
2138 if (VecWidth == 128)
2139 IID = Intrinsic::x86_avx512_pmultishift_qb_128;
2140 else if (VecWidth == 256)
2141 IID = Intrinsic::x86_avx512_pmultishift_qb_256;
2142 else if (VecWidth == 512)
2143 IID = Intrinsic::x86_avx512_pmultishift_qb_512;
2144 else
2145 llvm_unreachable("Unexpected intrinsic");
2146 } else if (Name.starts_with("conflict.")) {
2147 if (Name[9] == 'd' && VecWidth == 128)
2148 IID = Intrinsic::x86_avx512_conflict_d_128;
2149 else if (Name[9] == 'd' && VecWidth == 256)
2150 IID = Intrinsic::x86_avx512_conflict_d_256;
2151 else if (Name[9] == 'd' && VecWidth == 512)
2152 IID = Intrinsic::x86_avx512_conflict_d_512;
2153 else if (Name[9] == 'q' && VecWidth == 128)
2154 IID = Intrinsic::x86_avx512_conflict_q_128;
2155 else if (Name[9] == 'q' && VecWidth == 256)
2156 IID = Intrinsic::x86_avx512_conflict_q_256;
2157 else if (Name[9] == 'q' && VecWidth == 512)
2158 IID = Intrinsic::x86_avx512_conflict_q_512;
2159 else
2160 llvm_unreachable("Unexpected intrinsic");
2161 } else if (Name.starts_with("pavg.")) {
2162 if (Name[5] == 'b' && VecWidth == 128)
2163 IID = Intrinsic::x86_sse2_pavg_b;
2164 else if (Name[5] == 'b' && VecWidth == 256)
2165 IID = Intrinsic::x86_avx2_pavg_b;
2166 else if (Name[5] == 'b' && VecWidth == 512)
2167 IID = Intrinsic::x86_avx512_pavg_b_512;
2168 else if (Name[5] == 'w' && VecWidth == 128)
2169 IID = Intrinsic::x86_sse2_pavg_w;
2170 else if (Name[5] == 'w' && VecWidth == 256)
2171 IID = Intrinsic::x86_avx2_pavg_w;
2172 else if (Name[5] == 'w' && VecWidth == 512)
2173 IID = Intrinsic::x86_avx512_pavg_w_512;
2174 else
2175 llvm_unreachable("Unexpected intrinsic");
2176 } else
2177 return false;
2178
2179 SmallVector<Value *, 4> Args(CI.args());
2180 Args.pop_back();
2181 Args.pop_back();
2182 Rep = Builder.CreateCall(Intrinsic::getDeclaration(CI.getModule(), IID),
2183 Args);
2184 unsigned NumArgs = CI.arg_size();
2185 Rep = emitX86Select(Builder, CI.getArgOperand(NumArgs - 1), Rep,
2186 CI.getArgOperand(NumArgs - 2));
2187 return true;
2188 }
2189
2190 /// Upgrade comment in call to inline asm that represents an objc retain release
2191 /// marker.
UpgradeInlineAsmString(std::string * AsmStr)2192 void llvm::UpgradeInlineAsmString(std::string *AsmStr) {
2193 size_t Pos;
2194 if (AsmStr->find("mov\tfp") == 0 &&
2195 AsmStr->find("objc_retainAutoreleaseReturnValue") != std::string::npos &&
2196 (Pos = AsmStr->find("# marker")) != std::string::npos) {
2197 AsmStr->replace(Pos, 1, ";");
2198 }
2199 }
2200
upgradeARMIntrinsicCall(StringRef Name,CallBase * CI,Function * F,IRBuilder<> & Builder)2201 static Value *upgradeARMIntrinsicCall(StringRef Name, CallBase *CI, Function *F,
2202 IRBuilder<> &Builder) {
2203 if (Name == "mve.vctp64.old") {
2204 // Replace the old v4i1 vctp64 with a v2i1 vctp and predicate-casts to the
2205 // correct type.
2206 Value *VCTP = Builder.CreateCall(
2207 Intrinsic::getDeclaration(F->getParent(), Intrinsic::arm_mve_vctp64),
2208 CI->getArgOperand(0), CI->getName());
2209 Value *C1 = Builder.CreateCall(
2210 Intrinsic::getDeclaration(
2211 F->getParent(), Intrinsic::arm_mve_pred_v2i,
2212 {VectorType::get(Builder.getInt1Ty(), 2, false)}),
2213 VCTP);
2214 return Builder.CreateCall(
2215 Intrinsic::getDeclaration(
2216 F->getParent(), Intrinsic::arm_mve_pred_i2v,
2217 {VectorType::get(Builder.getInt1Ty(), 4, false)}),
2218 C1);
2219 } else if (Name == "mve.mull.int.predicated.v2i64.v4i32.v4i1" ||
2220 Name == "mve.vqdmull.predicated.v2i64.v4i32.v4i1" ||
2221 Name == "mve.vldr.gather.base.predicated.v2i64.v2i64.v4i1" ||
2222 Name == "mve.vldr.gather.base.wb.predicated.v2i64.v2i64.v4i1" ||
2223 Name ==
2224 "mve.vldr.gather.offset.predicated.v2i64.p0i64.v2i64.v4i1" ||
2225 Name == "mve.vldr.gather.offset.predicated.v2i64.p0.v2i64.v4i1" ||
2226 Name == "mve.vstr.scatter.base.predicated.v2i64.v2i64.v4i1" ||
2227 Name == "mve.vstr.scatter.base.wb.predicated.v2i64.v2i64.v4i1" ||
2228 Name ==
2229 "mve.vstr.scatter.offset.predicated.p0i64.v2i64.v2i64.v4i1" ||
2230 Name == "mve.vstr.scatter.offset.predicated.p0.v2i64.v2i64.v4i1" ||
2231 Name == "cde.vcx1q.predicated.v2i64.v4i1" ||
2232 Name == "cde.vcx1qa.predicated.v2i64.v4i1" ||
2233 Name == "cde.vcx2q.predicated.v2i64.v4i1" ||
2234 Name == "cde.vcx2qa.predicated.v2i64.v4i1" ||
2235 Name == "cde.vcx3q.predicated.v2i64.v4i1" ||
2236 Name == "cde.vcx3qa.predicated.v2i64.v4i1") {
2237 std::vector<Type *> Tys;
2238 unsigned ID = CI->getIntrinsicID();
2239 Type *V2I1Ty = FixedVectorType::get(Builder.getInt1Ty(), 2);
2240 switch (ID) {
2241 case Intrinsic::arm_mve_mull_int_predicated:
2242 case Intrinsic::arm_mve_vqdmull_predicated:
2243 case Intrinsic::arm_mve_vldr_gather_base_predicated:
2244 Tys = {CI->getType(), CI->getOperand(0)->getType(), V2I1Ty};
2245 break;
2246 case Intrinsic::arm_mve_vldr_gather_base_wb_predicated:
2247 case Intrinsic::arm_mve_vstr_scatter_base_predicated:
2248 case Intrinsic::arm_mve_vstr_scatter_base_wb_predicated:
2249 Tys = {CI->getOperand(0)->getType(), CI->getOperand(0)->getType(),
2250 V2I1Ty};
2251 break;
2252 case Intrinsic::arm_mve_vldr_gather_offset_predicated:
2253 Tys = {CI->getType(), CI->getOperand(0)->getType(),
2254 CI->getOperand(1)->getType(), V2I1Ty};
2255 break;
2256 case Intrinsic::arm_mve_vstr_scatter_offset_predicated:
2257 Tys = {CI->getOperand(0)->getType(), CI->getOperand(1)->getType(),
2258 CI->getOperand(2)->getType(), V2I1Ty};
2259 break;
2260 case Intrinsic::arm_cde_vcx1q_predicated:
2261 case Intrinsic::arm_cde_vcx1qa_predicated:
2262 case Intrinsic::arm_cde_vcx2q_predicated:
2263 case Intrinsic::arm_cde_vcx2qa_predicated:
2264 case Intrinsic::arm_cde_vcx3q_predicated:
2265 case Intrinsic::arm_cde_vcx3qa_predicated:
2266 Tys = {CI->getOperand(1)->getType(), V2I1Ty};
2267 break;
2268 default:
2269 llvm_unreachable("Unhandled Intrinsic!");
2270 }
2271
2272 std::vector<Value *> Ops;
2273 for (Value *Op : CI->args()) {
2274 Type *Ty = Op->getType();
2275 if (Ty->getScalarSizeInBits() == 1) {
2276 Value *C1 = Builder.CreateCall(
2277 Intrinsic::getDeclaration(
2278 F->getParent(), Intrinsic::arm_mve_pred_v2i,
2279 {VectorType::get(Builder.getInt1Ty(), 4, false)}),
2280 Op);
2281 Op = Builder.CreateCall(
2282 Intrinsic::getDeclaration(F->getParent(),
2283 Intrinsic::arm_mve_pred_i2v, {V2I1Ty}),
2284 C1);
2285 }
2286 Ops.push_back(Op);
2287 }
2288
2289 Function *Fn = Intrinsic::getDeclaration(F->getParent(), ID, Tys);
2290 return Builder.CreateCall(Fn, Ops, CI->getName());
2291 }
2292 llvm_unreachable("Unknown function for ARM CallBase upgrade.");
2293 }
2294
upgradeAMDGCNIntrinsicCall(StringRef Name,CallBase * CI,Function * F,IRBuilder<> & Builder)2295 static Value *upgradeAMDGCNIntrinsicCall(StringRef Name, CallBase *CI,
2296 Function *F, IRBuilder<> &Builder) {
2297 const bool IsInc = Name.starts_with("atomic.inc.");
2298 if (IsInc || Name.starts_with("atomic.dec.")) {
2299 if (CI->getNumOperands() != 6) // Malformed bitcode.
2300 return nullptr;
2301
2302 AtomicRMWInst::BinOp RMWOp =
2303 IsInc ? AtomicRMWInst::UIncWrap : AtomicRMWInst::UDecWrap;
2304
2305 Value *Ptr = CI->getArgOperand(0);
2306 Value *Val = CI->getArgOperand(1);
2307 ConstantInt *OrderArg = dyn_cast<ConstantInt>(CI->getArgOperand(2));
2308 ConstantInt *VolatileArg = dyn_cast<ConstantInt>(CI->getArgOperand(4));
2309
2310 AtomicOrdering Order = AtomicOrdering::SequentiallyConsistent;
2311 if (OrderArg && isValidAtomicOrdering(OrderArg->getZExtValue()))
2312 Order = static_cast<AtomicOrdering>(OrderArg->getZExtValue());
2313 if (Order == AtomicOrdering::NotAtomic ||
2314 Order == AtomicOrdering::Unordered)
2315 Order = AtomicOrdering::SequentiallyConsistent;
2316
2317 // The scope argument never really worked correctly. Use agent as the most
2318 // conservative option which should still always produce the instruction.
2319 SyncScope::ID SSID = F->getContext().getOrInsertSyncScopeID("agent");
2320 AtomicRMWInst *RMW =
2321 Builder.CreateAtomicRMW(RMWOp, Ptr, Val, std::nullopt, Order, SSID);
2322
2323 if (!VolatileArg || !VolatileArg->isZero())
2324 RMW->setVolatile(true);
2325 return RMW;
2326 }
2327
2328 llvm_unreachable("Unknown function for AMDGPU intrinsic upgrade.");
2329 }
2330
2331 /// Upgrade a call to an old intrinsic. All argument and return casting must be
2332 /// provided to seamlessly integrate with existing context.
UpgradeIntrinsicCall(CallBase * CI,Function * NewFn)2333 void llvm::UpgradeIntrinsicCall(CallBase *CI, Function *NewFn) {
2334 // Note dyn_cast to Function is not quite the same as getCalledFunction, which
2335 // checks the callee's function type matches. It's likely we need to handle
2336 // type changes here.
2337 Function *F = dyn_cast<Function>(CI->getCalledOperand());
2338 if (!F)
2339 return;
2340
2341 LLVMContext &C = CI->getContext();
2342 IRBuilder<> Builder(C);
2343 Builder.SetInsertPoint(CI->getParent(), CI->getIterator());
2344
2345 if (!NewFn) {
2346 // Get the Function's name.
2347 StringRef Name = F->getName();
2348
2349 assert(Name.starts_with("llvm.") && "Intrinsic doesn't start with 'llvm.'");
2350 Name = Name.substr(5);
2351
2352 bool IsX86 = Name.consume_front("x86.");
2353 bool IsNVVM = Name.consume_front("nvvm.");
2354 bool IsARM = Name.consume_front("arm.");
2355 bool IsAMDGCN = Name.consume_front("amdgcn.");
2356
2357 if (IsX86 && Name.starts_with("sse4a.movnt.")) {
2358 SmallVector<Metadata *, 1> Elts;
2359 Elts.push_back(
2360 ConstantAsMetadata::get(ConstantInt::get(Type::getInt32Ty(C), 1)));
2361 MDNode *Node = MDNode::get(C, Elts);
2362
2363 Value *Arg0 = CI->getArgOperand(0);
2364 Value *Arg1 = CI->getArgOperand(1);
2365
2366 // Nontemporal (unaligned) store of the 0'th element of the float/double
2367 // vector.
2368 Type *SrcEltTy = cast<VectorType>(Arg1->getType())->getElementType();
2369 PointerType *EltPtrTy = PointerType::getUnqual(SrcEltTy);
2370 Value *Addr = Builder.CreateBitCast(Arg0, EltPtrTy, "cast");
2371 Value *Extract =
2372 Builder.CreateExtractElement(Arg1, (uint64_t)0, "extractelement");
2373
2374 StoreInst *SI = Builder.CreateAlignedStore(Extract, Addr, Align(1));
2375 SI->setMetadata(LLVMContext::MD_nontemporal, Node);
2376
2377 // Remove intrinsic.
2378 CI->eraseFromParent();
2379 return;
2380 }
2381
2382 if (IsX86 && (Name.starts_with("avx.movnt.") ||
2383 Name.starts_with("avx512.storent."))) {
2384 SmallVector<Metadata *, 1> Elts;
2385 Elts.push_back(
2386 ConstantAsMetadata::get(ConstantInt::get(Type::getInt32Ty(C), 1)));
2387 MDNode *Node = MDNode::get(C, Elts);
2388
2389 Value *Arg0 = CI->getArgOperand(0);
2390 Value *Arg1 = CI->getArgOperand(1);
2391
2392 // Convert the type of the pointer to a pointer to the stored type.
2393 Value *BC = Builder.CreateBitCast(Arg0,
2394 PointerType::getUnqual(Arg1->getType()),
2395 "cast");
2396 StoreInst *SI = Builder.CreateAlignedStore(
2397 Arg1, BC,
2398 Align(Arg1->getType()->getPrimitiveSizeInBits().getFixedValue() / 8));
2399 SI->setMetadata(LLVMContext::MD_nontemporal, Node);
2400
2401 // Remove intrinsic.
2402 CI->eraseFromParent();
2403 return;
2404 }
2405
2406 if (IsX86 && Name == "sse2.storel.dq") {
2407 Value *Arg0 = CI->getArgOperand(0);
2408 Value *Arg1 = CI->getArgOperand(1);
2409
2410 auto *NewVecTy = FixedVectorType::get(Type::getInt64Ty(C), 2);
2411 Value *BC0 = Builder.CreateBitCast(Arg1, NewVecTy, "cast");
2412 Value *Elt = Builder.CreateExtractElement(BC0, (uint64_t)0);
2413 Value *BC = Builder.CreateBitCast(Arg0,
2414 PointerType::getUnqual(Elt->getType()),
2415 "cast");
2416 Builder.CreateAlignedStore(Elt, BC, Align(1));
2417
2418 // Remove intrinsic.
2419 CI->eraseFromParent();
2420 return;
2421 }
2422
2423 if (IsX86 && (Name.starts_with("sse.storeu.") ||
2424 Name.starts_with("sse2.storeu.") ||
2425 Name.starts_with("avx.storeu."))) {
2426 Value *Arg0 = CI->getArgOperand(0);
2427 Value *Arg1 = CI->getArgOperand(1);
2428
2429 Arg0 = Builder.CreateBitCast(Arg0,
2430 PointerType::getUnqual(Arg1->getType()),
2431 "cast");
2432 Builder.CreateAlignedStore(Arg1, Arg0, Align(1));
2433
2434 // Remove intrinsic.
2435 CI->eraseFromParent();
2436 return;
2437 }
2438
2439 if (IsX86 && Name == "avx512.mask.store.ss") {
2440 Value *Mask = Builder.CreateAnd(CI->getArgOperand(2), Builder.getInt8(1));
2441 upgradeMaskedStore(Builder, CI->getArgOperand(0), CI->getArgOperand(1),
2442 Mask, false);
2443
2444 // Remove intrinsic.
2445 CI->eraseFromParent();
2446 return;
2447 }
2448
2449 if (IsX86 && Name.starts_with("avx512.mask.store")) {
2450 // "avx512.mask.storeu." or "avx512.mask.store."
2451 bool Aligned = Name[17] != 'u'; // "avx512.mask.storeu".
2452 upgradeMaskedStore(Builder, CI->getArgOperand(0), CI->getArgOperand(1),
2453 CI->getArgOperand(2), Aligned);
2454
2455 // Remove intrinsic.
2456 CI->eraseFromParent();
2457 return;
2458 }
2459
2460 Value *Rep;
2461 // Upgrade packed integer vector compare intrinsics to compare instructions.
2462 if (IsX86 && (Name.starts_with("sse2.pcmp") ||
2463 Name.starts_with("avx2.pcmp"))) {
2464 // "sse2.pcpmpeq." "sse2.pcmpgt." "avx2.pcmpeq." or "avx2.pcmpgt."
2465 bool CmpEq = Name[9] == 'e';
2466 Rep = Builder.CreateICmp(CmpEq ? ICmpInst::ICMP_EQ : ICmpInst::ICMP_SGT,
2467 CI->getArgOperand(0), CI->getArgOperand(1));
2468 Rep = Builder.CreateSExt(Rep, CI->getType(), "");
2469 } else if (IsX86 && (Name.starts_with("avx512.broadcastm"))) {
2470 Type *ExtTy = Type::getInt32Ty(C);
2471 if (CI->getOperand(0)->getType()->isIntegerTy(8))
2472 ExtTy = Type::getInt64Ty(C);
2473 unsigned NumElts = CI->getType()->getPrimitiveSizeInBits() /
2474 ExtTy->getPrimitiveSizeInBits();
2475 Rep = Builder.CreateZExt(CI->getArgOperand(0), ExtTy);
2476 Rep = Builder.CreateVectorSplat(NumElts, Rep);
2477 } else if (IsX86 && (Name == "sse.sqrt.ss" ||
2478 Name == "sse2.sqrt.sd")) {
2479 Value *Vec = CI->getArgOperand(0);
2480 Value *Elt0 = Builder.CreateExtractElement(Vec, (uint64_t)0);
2481 Function *Intr = Intrinsic::getDeclaration(F->getParent(),
2482 Intrinsic::sqrt, Elt0->getType());
2483 Elt0 = Builder.CreateCall(Intr, Elt0);
2484 Rep = Builder.CreateInsertElement(Vec, Elt0, (uint64_t)0);
2485 } else if (IsX86 && (Name.starts_with("avx.sqrt.p") ||
2486 Name.starts_with("sse2.sqrt.p") ||
2487 Name.starts_with("sse.sqrt.p"))) {
2488 Rep = Builder.CreateCall(Intrinsic::getDeclaration(F->getParent(),
2489 Intrinsic::sqrt,
2490 CI->getType()),
2491 {CI->getArgOperand(0)});
2492 } else if (IsX86 && (Name.starts_with("avx512.mask.sqrt.p"))) {
2493 if (CI->arg_size() == 4 &&
2494 (!isa<ConstantInt>(CI->getArgOperand(3)) ||
2495 cast<ConstantInt>(CI->getArgOperand(3))->getZExtValue() != 4)) {
2496 Intrinsic::ID IID = Name[18] == 's' ? Intrinsic::x86_avx512_sqrt_ps_512
2497 : Intrinsic::x86_avx512_sqrt_pd_512;
2498
2499 Value *Args[] = { CI->getArgOperand(0), CI->getArgOperand(3) };
2500 Rep = Builder.CreateCall(Intrinsic::getDeclaration(CI->getModule(),
2501 IID), Args);
2502 } else {
2503 Rep = Builder.CreateCall(Intrinsic::getDeclaration(F->getParent(),
2504 Intrinsic::sqrt,
2505 CI->getType()),
2506 {CI->getArgOperand(0)});
2507 }
2508 Rep = emitX86Select(Builder, CI->getArgOperand(2), Rep,
2509 CI->getArgOperand(1));
2510 } else if (IsX86 && (Name.starts_with("avx512.ptestm") ||
2511 Name.starts_with("avx512.ptestnm"))) {
2512 Value *Op0 = CI->getArgOperand(0);
2513 Value *Op1 = CI->getArgOperand(1);
2514 Value *Mask = CI->getArgOperand(2);
2515 Rep = Builder.CreateAnd(Op0, Op1);
2516 llvm::Type *Ty = Op0->getType();
2517 Value *Zero = llvm::Constant::getNullValue(Ty);
2518 ICmpInst::Predicate Pred =
2519 Name.starts_with("avx512.ptestm") ? ICmpInst::ICMP_NE : ICmpInst::ICMP_EQ;
2520 Rep = Builder.CreateICmp(Pred, Rep, Zero);
2521 Rep = applyX86MaskOn1BitsVec(Builder, Rep, Mask);
2522 } else if (IsX86 && (Name.starts_with("avx512.mask.pbroadcast"))){
2523 unsigned NumElts = cast<FixedVectorType>(CI->getArgOperand(1)->getType())
2524 ->getNumElements();
2525 Rep = Builder.CreateVectorSplat(NumElts, CI->getArgOperand(0));
2526 Rep = emitX86Select(Builder, CI->getArgOperand(2), Rep,
2527 CI->getArgOperand(1));
2528 } else if (IsX86 && (Name.starts_with("avx512.kunpck"))) {
2529 unsigned NumElts = CI->getType()->getScalarSizeInBits();
2530 Value *LHS = getX86MaskVec(Builder, CI->getArgOperand(0), NumElts);
2531 Value *RHS = getX86MaskVec(Builder, CI->getArgOperand(1), NumElts);
2532 int Indices[64];
2533 for (unsigned i = 0; i != NumElts; ++i)
2534 Indices[i] = i;
2535
2536 // First extract half of each vector. This gives better codegen than
2537 // doing it in a single shuffle.
2538 LHS =
2539 Builder.CreateShuffleVector(LHS, LHS, ArrayRef(Indices, NumElts / 2));
2540 RHS =
2541 Builder.CreateShuffleVector(RHS, RHS, ArrayRef(Indices, NumElts / 2));
2542 // Concat the vectors.
2543 // NOTE: Operands have to be swapped to match intrinsic definition.
2544 Rep = Builder.CreateShuffleVector(RHS, LHS, ArrayRef(Indices, NumElts));
2545 Rep = Builder.CreateBitCast(Rep, CI->getType());
2546 } else if (IsX86 && Name == "avx512.kand.w") {
2547 Value *LHS = getX86MaskVec(Builder, CI->getArgOperand(0), 16);
2548 Value *RHS = getX86MaskVec(Builder, CI->getArgOperand(1), 16);
2549 Rep = Builder.CreateAnd(LHS, RHS);
2550 Rep = Builder.CreateBitCast(Rep, CI->getType());
2551 } else if (IsX86 && Name == "avx512.kandn.w") {
2552 Value *LHS = getX86MaskVec(Builder, CI->getArgOperand(0), 16);
2553 Value *RHS = getX86MaskVec(Builder, CI->getArgOperand(1), 16);
2554 LHS = Builder.CreateNot(LHS);
2555 Rep = Builder.CreateAnd(LHS, RHS);
2556 Rep = Builder.CreateBitCast(Rep, CI->getType());
2557 } else if (IsX86 && Name == "avx512.kor.w") {
2558 Value *LHS = getX86MaskVec(Builder, CI->getArgOperand(0), 16);
2559 Value *RHS = getX86MaskVec(Builder, CI->getArgOperand(1), 16);
2560 Rep = Builder.CreateOr(LHS, RHS);
2561 Rep = Builder.CreateBitCast(Rep, CI->getType());
2562 } else if (IsX86 && Name == "avx512.kxor.w") {
2563 Value *LHS = getX86MaskVec(Builder, CI->getArgOperand(0), 16);
2564 Value *RHS = getX86MaskVec(Builder, CI->getArgOperand(1), 16);
2565 Rep = Builder.CreateXor(LHS, RHS);
2566 Rep = Builder.CreateBitCast(Rep, CI->getType());
2567 } else if (IsX86 && Name == "avx512.kxnor.w") {
2568 Value *LHS = getX86MaskVec(Builder, CI->getArgOperand(0), 16);
2569 Value *RHS = getX86MaskVec(Builder, CI->getArgOperand(1), 16);
2570 LHS = Builder.CreateNot(LHS);
2571 Rep = Builder.CreateXor(LHS, RHS);
2572 Rep = Builder.CreateBitCast(Rep, CI->getType());
2573 } else if (IsX86 && Name == "avx512.knot.w") {
2574 Rep = getX86MaskVec(Builder, CI->getArgOperand(0), 16);
2575 Rep = Builder.CreateNot(Rep);
2576 Rep = Builder.CreateBitCast(Rep, CI->getType());
2577 } else if (IsX86 &&
2578 (Name == "avx512.kortestz.w" || Name == "avx512.kortestc.w")) {
2579 Value *LHS = getX86MaskVec(Builder, CI->getArgOperand(0), 16);
2580 Value *RHS = getX86MaskVec(Builder, CI->getArgOperand(1), 16);
2581 Rep = Builder.CreateOr(LHS, RHS);
2582 Rep = Builder.CreateBitCast(Rep, Builder.getInt16Ty());
2583 Value *C;
2584 if (Name[14] == 'c')
2585 C = ConstantInt::getAllOnesValue(Builder.getInt16Ty());
2586 else
2587 C = ConstantInt::getNullValue(Builder.getInt16Ty());
2588 Rep = Builder.CreateICmpEQ(Rep, C);
2589 Rep = Builder.CreateZExt(Rep, Builder.getInt32Ty());
2590 } else if (IsX86 && (Name == "sse.add.ss" || Name == "sse2.add.sd" ||
2591 Name == "sse.sub.ss" || Name == "sse2.sub.sd" ||
2592 Name == "sse.mul.ss" || Name == "sse2.mul.sd" ||
2593 Name == "sse.div.ss" || Name == "sse2.div.sd")) {
2594 Type *I32Ty = Type::getInt32Ty(C);
2595 Value *Elt0 = Builder.CreateExtractElement(CI->getArgOperand(0),
2596 ConstantInt::get(I32Ty, 0));
2597 Value *Elt1 = Builder.CreateExtractElement(CI->getArgOperand(1),
2598 ConstantInt::get(I32Ty, 0));
2599 Value *EltOp;
2600 if (Name.contains(".add."))
2601 EltOp = Builder.CreateFAdd(Elt0, Elt1);
2602 else if (Name.contains(".sub."))
2603 EltOp = Builder.CreateFSub(Elt0, Elt1);
2604 else if (Name.contains(".mul."))
2605 EltOp = Builder.CreateFMul(Elt0, Elt1);
2606 else
2607 EltOp = Builder.CreateFDiv(Elt0, Elt1);
2608 Rep = Builder.CreateInsertElement(CI->getArgOperand(0), EltOp,
2609 ConstantInt::get(I32Ty, 0));
2610 } else if (IsX86 && Name.starts_with("avx512.mask.pcmp")) {
2611 // "avx512.mask.pcmpeq." or "avx512.mask.pcmpgt."
2612 bool CmpEq = Name[16] == 'e';
2613 Rep = upgradeMaskedCompare(Builder, *CI, CmpEq ? 0 : 6, true);
2614 } else if (IsX86 && Name.starts_with("avx512.mask.vpshufbitqmb.")) {
2615 Type *OpTy = CI->getArgOperand(0)->getType();
2616 unsigned VecWidth = OpTy->getPrimitiveSizeInBits();
2617 Intrinsic::ID IID;
2618 switch (VecWidth) {
2619 default: llvm_unreachable("Unexpected intrinsic");
2620 case 128: IID = Intrinsic::x86_avx512_vpshufbitqmb_128; break;
2621 case 256: IID = Intrinsic::x86_avx512_vpshufbitqmb_256; break;
2622 case 512: IID = Intrinsic::x86_avx512_vpshufbitqmb_512; break;
2623 }
2624
2625 Rep = Builder.CreateCall(Intrinsic::getDeclaration(F->getParent(), IID),
2626 { CI->getOperand(0), CI->getArgOperand(1) });
2627 Rep = applyX86MaskOn1BitsVec(Builder, Rep, CI->getArgOperand(2));
2628 } else if (IsX86 && Name.starts_with("avx512.mask.fpclass.p")) {
2629 Type *OpTy = CI->getArgOperand(0)->getType();
2630 unsigned VecWidth = OpTy->getPrimitiveSizeInBits();
2631 unsigned EltWidth = OpTy->getScalarSizeInBits();
2632 Intrinsic::ID IID;
2633 if (VecWidth == 128 && EltWidth == 32)
2634 IID = Intrinsic::x86_avx512_fpclass_ps_128;
2635 else if (VecWidth == 256 && EltWidth == 32)
2636 IID = Intrinsic::x86_avx512_fpclass_ps_256;
2637 else if (VecWidth == 512 && EltWidth == 32)
2638 IID = Intrinsic::x86_avx512_fpclass_ps_512;
2639 else if (VecWidth == 128 && EltWidth == 64)
2640 IID = Intrinsic::x86_avx512_fpclass_pd_128;
2641 else if (VecWidth == 256 && EltWidth == 64)
2642 IID = Intrinsic::x86_avx512_fpclass_pd_256;
2643 else if (VecWidth == 512 && EltWidth == 64)
2644 IID = Intrinsic::x86_avx512_fpclass_pd_512;
2645 else
2646 llvm_unreachable("Unexpected intrinsic");
2647
2648 Rep = Builder.CreateCall(Intrinsic::getDeclaration(F->getParent(), IID),
2649 { CI->getOperand(0), CI->getArgOperand(1) });
2650 Rep = applyX86MaskOn1BitsVec(Builder, Rep, CI->getArgOperand(2));
2651 } else if (IsX86 && Name.starts_with("avx512.cmp.p")) {
2652 SmallVector<Value *, 4> Args(CI->args());
2653 Type *OpTy = Args[0]->getType();
2654 unsigned VecWidth = OpTy->getPrimitiveSizeInBits();
2655 unsigned EltWidth = OpTy->getScalarSizeInBits();
2656 Intrinsic::ID IID;
2657 if (VecWidth == 128 && EltWidth == 32)
2658 IID = Intrinsic::x86_avx512_mask_cmp_ps_128;
2659 else if (VecWidth == 256 && EltWidth == 32)
2660 IID = Intrinsic::x86_avx512_mask_cmp_ps_256;
2661 else if (VecWidth == 512 && EltWidth == 32)
2662 IID = Intrinsic::x86_avx512_mask_cmp_ps_512;
2663 else if (VecWidth == 128 && EltWidth == 64)
2664 IID = Intrinsic::x86_avx512_mask_cmp_pd_128;
2665 else if (VecWidth == 256 && EltWidth == 64)
2666 IID = Intrinsic::x86_avx512_mask_cmp_pd_256;
2667 else if (VecWidth == 512 && EltWidth == 64)
2668 IID = Intrinsic::x86_avx512_mask_cmp_pd_512;
2669 else
2670 llvm_unreachable("Unexpected intrinsic");
2671
2672 Value *Mask = Constant::getAllOnesValue(CI->getType());
2673 if (VecWidth == 512)
2674 std::swap(Mask, Args.back());
2675 Args.push_back(Mask);
2676
2677 Rep = Builder.CreateCall(Intrinsic::getDeclaration(F->getParent(), IID),
2678 Args);
2679 } else if (IsX86 && Name.starts_with("avx512.mask.cmp.")) {
2680 // Integer compare intrinsics.
2681 unsigned Imm = cast<ConstantInt>(CI->getArgOperand(2))->getZExtValue();
2682 Rep = upgradeMaskedCompare(Builder, *CI, Imm, true);
2683 } else if (IsX86 && Name.starts_with("avx512.mask.ucmp.")) {
2684 unsigned Imm = cast<ConstantInt>(CI->getArgOperand(2))->getZExtValue();
2685 Rep = upgradeMaskedCompare(Builder, *CI, Imm, false);
2686 } else if (IsX86 && (Name.starts_with("avx512.cvtb2mask.") ||
2687 Name.starts_with("avx512.cvtw2mask.") ||
2688 Name.starts_with("avx512.cvtd2mask.") ||
2689 Name.starts_with("avx512.cvtq2mask."))) {
2690 Value *Op = CI->getArgOperand(0);
2691 Value *Zero = llvm::Constant::getNullValue(Op->getType());
2692 Rep = Builder.CreateICmp(ICmpInst::ICMP_SLT, Op, Zero);
2693 Rep = applyX86MaskOn1BitsVec(Builder, Rep, nullptr);
2694 } else if(IsX86 && (Name == "ssse3.pabs.b.128" ||
2695 Name == "ssse3.pabs.w.128" ||
2696 Name == "ssse3.pabs.d.128" ||
2697 Name.starts_with("avx2.pabs") ||
2698 Name.starts_with("avx512.mask.pabs"))) {
2699 Rep = upgradeAbs(Builder, *CI);
2700 } else if (IsX86 && (Name == "sse41.pmaxsb" ||
2701 Name == "sse2.pmaxs.w" ||
2702 Name == "sse41.pmaxsd" ||
2703 Name.starts_with("avx2.pmaxs") ||
2704 Name.starts_with("avx512.mask.pmaxs"))) {
2705 Rep = upgradeX86BinaryIntrinsics(Builder, *CI, Intrinsic::smax);
2706 } else if (IsX86 && (Name == "sse2.pmaxu.b" ||
2707 Name == "sse41.pmaxuw" ||
2708 Name == "sse41.pmaxud" ||
2709 Name.starts_with("avx2.pmaxu") ||
2710 Name.starts_with("avx512.mask.pmaxu"))) {
2711 Rep = upgradeX86BinaryIntrinsics(Builder, *CI, Intrinsic::umax);
2712 } else if (IsX86 && (Name == "sse41.pminsb" ||
2713 Name == "sse2.pmins.w" ||
2714 Name == "sse41.pminsd" ||
2715 Name.starts_with("avx2.pmins") ||
2716 Name.starts_with("avx512.mask.pmins"))) {
2717 Rep = upgradeX86BinaryIntrinsics(Builder, *CI, Intrinsic::smin);
2718 } else if (IsX86 && (Name == "sse2.pminu.b" ||
2719 Name == "sse41.pminuw" ||
2720 Name == "sse41.pminud" ||
2721 Name.starts_with("avx2.pminu") ||
2722 Name.starts_with("avx512.mask.pminu"))) {
2723 Rep = upgradeX86BinaryIntrinsics(Builder, *CI, Intrinsic::umin);
2724 } else if (IsX86 && (Name == "sse2.pmulu.dq" ||
2725 Name == "avx2.pmulu.dq" ||
2726 Name == "avx512.pmulu.dq.512" ||
2727 Name.starts_with("avx512.mask.pmulu.dq."))) {
2728 Rep = upgradePMULDQ(Builder, *CI, /*Signed*/false);
2729 } else if (IsX86 && (Name == "sse41.pmuldq" ||
2730 Name == "avx2.pmul.dq" ||
2731 Name == "avx512.pmul.dq.512" ||
2732 Name.starts_with("avx512.mask.pmul.dq."))) {
2733 Rep = upgradePMULDQ(Builder, *CI, /*Signed*/true);
2734 } else if (IsX86 && (Name == "sse.cvtsi2ss" ||
2735 Name == "sse2.cvtsi2sd" ||
2736 Name == "sse.cvtsi642ss" ||
2737 Name == "sse2.cvtsi642sd")) {
2738 Rep = Builder.CreateSIToFP(
2739 CI->getArgOperand(1),
2740 cast<VectorType>(CI->getType())->getElementType());
2741 Rep = Builder.CreateInsertElement(CI->getArgOperand(0), Rep, (uint64_t)0);
2742 } else if (IsX86 && Name == "avx512.cvtusi2sd") {
2743 Rep = Builder.CreateUIToFP(
2744 CI->getArgOperand(1),
2745 cast<VectorType>(CI->getType())->getElementType());
2746 Rep = Builder.CreateInsertElement(CI->getArgOperand(0), Rep, (uint64_t)0);
2747 } else if (IsX86 && Name == "sse2.cvtss2sd") {
2748 Rep = Builder.CreateExtractElement(CI->getArgOperand(1), (uint64_t)0);
2749 Rep = Builder.CreateFPExt(
2750 Rep, cast<VectorType>(CI->getType())->getElementType());
2751 Rep = Builder.CreateInsertElement(CI->getArgOperand(0), Rep, (uint64_t)0);
2752 } else if (IsX86 && (Name == "sse2.cvtdq2pd" ||
2753 Name == "sse2.cvtdq2ps" ||
2754 Name == "avx.cvtdq2.pd.256" ||
2755 Name == "avx.cvtdq2.ps.256" ||
2756 Name.starts_with("avx512.mask.cvtdq2pd.") ||
2757 Name.starts_with("avx512.mask.cvtudq2pd.") ||
2758 Name.starts_with("avx512.mask.cvtdq2ps.") ||
2759 Name.starts_with("avx512.mask.cvtudq2ps.") ||
2760 Name.starts_with("avx512.mask.cvtqq2pd.") ||
2761 Name.starts_with("avx512.mask.cvtuqq2pd.") ||
2762 Name == "avx512.mask.cvtqq2ps.256" ||
2763 Name == "avx512.mask.cvtqq2ps.512" ||
2764 Name == "avx512.mask.cvtuqq2ps.256" ||
2765 Name == "avx512.mask.cvtuqq2ps.512" ||
2766 Name == "sse2.cvtps2pd" ||
2767 Name == "avx.cvt.ps2.pd.256" ||
2768 Name == "avx512.mask.cvtps2pd.128" ||
2769 Name == "avx512.mask.cvtps2pd.256")) {
2770 auto *DstTy = cast<FixedVectorType>(CI->getType());
2771 Rep = CI->getArgOperand(0);
2772 auto *SrcTy = cast<FixedVectorType>(Rep->getType());
2773
2774 unsigned NumDstElts = DstTy->getNumElements();
2775 if (NumDstElts < SrcTy->getNumElements()) {
2776 assert(NumDstElts == 2 && "Unexpected vector size");
2777 Rep = Builder.CreateShuffleVector(Rep, Rep, ArrayRef<int>{0, 1});
2778 }
2779
2780 bool IsPS2PD = SrcTy->getElementType()->isFloatTy();
2781 bool IsUnsigned = Name.contains("cvtu");
2782 if (IsPS2PD)
2783 Rep = Builder.CreateFPExt(Rep, DstTy, "cvtps2pd");
2784 else if (CI->arg_size() == 4 &&
2785 (!isa<ConstantInt>(CI->getArgOperand(3)) ||
2786 cast<ConstantInt>(CI->getArgOperand(3))->getZExtValue() != 4)) {
2787 Intrinsic::ID IID = IsUnsigned ? Intrinsic::x86_avx512_uitofp_round
2788 : Intrinsic::x86_avx512_sitofp_round;
2789 Function *F = Intrinsic::getDeclaration(CI->getModule(), IID,
2790 { DstTy, SrcTy });
2791 Rep = Builder.CreateCall(F, { Rep, CI->getArgOperand(3) });
2792 } else {
2793 Rep = IsUnsigned ? Builder.CreateUIToFP(Rep, DstTy, "cvt")
2794 : Builder.CreateSIToFP(Rep, DstTy, "cvt");
2795 }
2796
2797 if (CI->arg_size() >= 3)
2798 Rep = emitX86Select(Builder, CI->getArgOperand(2), Rep,
2799 CI->getArgOperand(1));
2800 } else if (IsX86 && (Name.starts_with("avx512.mask.vcvtph2ps.") ||
2801 Name.starts_with("vcvtph2ps."))) {
2802 auto *DstTy = cast<FixedVectorType>(CI->getType());
2803 Rep = CI->getArgOperand(0);
2804 auto *SrcTy = cast<FixedVectorType>(Rep->getType());
2805 unsigned NumDstElts = DstTy->getNumElements();
2806 if (NumDstElts != SrcTy->getNumElements()) {
2807 assert(NumDstElts == 4 && "Unexpected vector size");
2808 Rep = Builder.CreateShuffleVector(Rep, Rep, ArrayRef<int>{0, 1, 2, 3});
2809 }
2810 Rep = Builder.CreateBitCast(
2811 Rep, FixedVectorType::get(Type::getHalfTy(C), NumDstElts));
2812 Rep = Builder.CreateFPExt(Rep, DstTy, "cvtph2ps");
2813 if (CI->arg_size() >= 3)
2814 Rep = emitX86Select(Builder, CI->getArgOperand(2), Rep,
2815 CI->getArgOperand(1));
2816 } else if (IsX86 && Name.starts_with("avx512.mask.load")) {
2817 // "avx512.mask.loadu." or "avx512.mask.load."
2818 bool Aligned = Name[16] != 'u'; // "avx512.mask.loadu".
2819 Rep =
2820 upgradeMaskedLoad(Builder, CI->getArgOperand(0), CI->getArgOperand(1),
2821 CI->getArgOperand(2), Aligned);
2822 } else if (IsX86 && Name.starts_with("avx512.mask.expand.load.")) {
2823 auto *ResultTy = cast<FixedVectorType>(CI->getType());
2824 Type *PtrTy = ResultTy->getElementType();
2825
2826 // Cast the pointer to element type.
2827 Value *Ptr = Builder.CreateBitCast(CI->getOperand(0),
2828 llvm::PointerType::getUnqual(PtrTy));
2829
2830 Value *MaskVec = getX86MaskVec(Builder, CI->getArgOperand(2),
2831 ResultTy->getNumElements());
2832
2833 Function *ELd = Intrinsic::getDeclaration(F->getParent(),
2834 Intrinsic::masked_expandload,
2835 ResultTy);
2836 Rep = Builder.CreateCall(ELd, { Ptr, MaskVec, CI->getOperand(1) });
2837 } else if (IsX86 && Name.starts_with("avx512.mask.compress.store.")) {
2838 auto *ResultTy = cast<VectorType>(CI->getArgOperand(1)->getType());
2839 Type *PtrTy = ResultTy->getElementType();
2840
2841 // Cast the pointer to element type.
2842 Value *Ptr = Builder.CreateBitCast(CI->getOperand(0),
2843 llvm::PointerType::getUnqual(PtrTy));
2844
2845 Value *MaskVec =
2846 getX86MaskVec(Builder, CI->getArgOperand(2),
2847 cast<FixedVectorType>(ResultTy)->getNumElements());
2848
2849 Function *CSt = Intrinsic::getDeclaration(F->getParent(),
2850 Intrinsic::masked_compressstore,
2851 ResultTy);
2852 Rep = Builder.CreateCall(CSt, { CI->getArgOperand(1), Ptr, MaskVec });
2853 } else if (IsX86 && (Name.starts_with("avx512.mask.compress.") ||
2854 Name.starts_with("avx512.mask.expand."))) {
2855 auto *ResultTy = cast<FixedVectorType>(CI->getType());
2856
2857 Value *MaskVec = getX86MaskVec(Builder, CI->getArgOperand(2),
2858 ResultTy->getNumElements());
2859
2860 bool IsCompress = Name[12] == 'c';
2861 Intrinsic::ID IID = IsCompress ? Intrinsic::x86_avx512_mask_compress
2862 : Intrinsic::x86_avx512_mask_expand;
2863 Function *Intr = Intrinsic::getDeclaration(F->getParent(), IID, ResultTy);
2864 Rep = Builder.CreateCall(Intr, { CI->getOperand(0), CI->getOperand(1),
2865 MaskVec });
2866 } else if (IsX86 && Name.starts_with("xop.vpcom")) {
2867 bool IsSigned;
2868 if (Name.ends_with("ub") || Name.ends_with("uw") || Name.ends_with("ud") ||
2869 Name.ends_with("uq"))
2870 IsSigned = false;
2871 else if (Name.ends_with("b") || Name.ends_with("w") || Name.ends_with("d") ||
2872 Name.ends_with("q"))
2873 IsSigned = true;
2874 else
2875 llvm_unreachable("Unknown suffix");
2876
2877 unsigned Imm;
2878 if (CI->arg_size() == 3) {
2879 Imm = cast<ConstantInt>(CI->getArgOperand(2))->getZExtValue();
2880 } else {
2881 Name = Name.substr(9); // strip off "xop.vpcom"
2882 if (Name.starts_with("lt"))
2883 Imm = 0;
2884 else if (Name.starts_with("le"))
2885 Imm = 1;
2886 else if (Name.starts_with("gt"))
2887 Imm = 2;
2888 else if (Name.starts_with("ge"))
2889 Imm = 3;
2890 else if (Name.starts_with("eq"))
2891 Imm = 4;
2892 else if (Name.starts_with("ne"))
2893 Imm = 5;
2894 else if (Name.starts_with("false"))
2895 Imm = 6;
2896 else if (Name.starts_with("true"))
2897 Imm = 7;
2898 else
2899 llvm_unreachable("Unknown condition");
2900 }
2901
2902 Rep = upgradeX86vpcom(Builder, *CI, Imm, IsSigned);
2903 } else if (IsX86 && Name.starts_with("xop.vpcmov")) {
2904 Value *Sel = CI->getArgOperand(2);
2905 Value *NotSel = Builder.CreateNot(Sel);
2906 Value *Sel0 = Builder.CreateAnd(CI->getArgOperand(0), Sel);
2907 Value *Sel1 = Builder.CreateAnd(CI->getArgOperand(1), NotSel);
2908 Rep = Builder.CreateOr(Sel0, Sel1);
2909 } else if (IsX86 && (Name.starts_with("xop.vprot") ||
2910 Name.starts_with("avx512.prol") ||
2911 Name.starts_with("avx512.mask.prol"))) {
2912 Rep = upgradeX86Rotate(Builder, *CI, false);
2913 } else if (IsX86 && (Name.starts_with("avx512.pror") ||
2914 Name.starts_with("avx512.mask.pror"))) {
2915 Rep = upgradeX86Rotate(Builder, *CI, true);
2916 } else if (IsX86 && (Name.starts_with("avx512.vpshld.") ||
2917 Name.starts_with("avx512.mask.vpshld") ||
2918 Name.starts_with("avx512.maskz.vpshld"))) {
2919 bool ZeroMask = Name[11] == 'z';
2920 Rep = upgradeX86ConcatShift(Builder, *CI, false, ZeroMask);
2921 } else if (IsX86 && (Name.starts_with("avx512.vpshrd.") ||
2922 Name.starts_with("avx512.mask.vpshrd") ||
2923 Name.starts_with("avx512.maskz.vpshrd"))) {
2924 bool ZeroMask = Name[11] == 'z';
2925 Rep = upgradeX86ConcatShift(Builder, *CI, true, ZeroMask);
2926 } else if (IsX86 && Name == "sse42.crc32.64.8") {
2927 Function *CRC32 = Intrinsic::getDeclaration(F->getParent(),
2928 Intrinsic::x86_sse42_crc32_32_8);
2929 Value *Trunc0 = Builder.CreateTrunc(CI->getArgOperand(0), Type::getInt32Ty(C));
2930 Rep = Builder.CreateCall(CRC32, {Trunc0, CI->getArgOperand(1)});
2931 Rep = Builder.CreateZExt(Rep, CI->getType(), "");
2932 } else if (IsX86 && (Name.starts_with("avx.vbroadcast.s") ||
2933 Name.starts_with("avx512.vbroadcast.s"))) {
2934 // Replace broadcasts with a series of insertelements.
2935 auto *VecTy = cast<FixedVectorType>(CI->getType());
2936 Type *EltTy = VecTy->getElementType();
2937 unsigned EltNum = VecTy->getNumElements();
2938 Value *Load = Builder.CreateLoad(EltTy, CI->getArgOperand(0));
2939 Type *I32Ty = Type::getInt32Ty(C);
2940 Rep = PoisonValue::get(VecTy);
2941 for (unsigned I = 0; I < EltNum; ++I)
2942 Rep = Builder.CreateInsertElement(Rep, Load,
2943 ConstantInt::get(I32Ty, I));
2944 } else if (IsX86 && (Name.starts_with("sse41.pmovsx") ||
2945 Name.starts_with("sse41.pmovzx") ||
2946 Name.starts_with("avx2.pmovsx") ||
2947 Name.starts_with("avx2.pmovzx") ||
2948 Name.starts_with("avx512.mask.pmovsx") ||
2949 Name.starts_with("avx512.mask.pmovzx"))) {
2950 auto *DstTy = cast<FixedVectorType>(CI->getType());
2951 unsigned NumDstElts = DstTy->getNumElements();
2952
2953 // Extract a subvector of the first NumDstElts lanes and sign/zero extend.
2954 SmallVector<int, 8> ShuffleMask(NumDstElts);
2955 for (unsigned i = 0; i != NumDstElts; ++i)
2956 ShuffleMask[i] = i;
2957
2958 Value *SV =
2959 Builder.CreateShuffleVector(CI->getArgOperand(0), ShuffleMask);
2960
2961 bool DoSext = Name.contains("pmovsx");
2962 Rep = DoSext ? Builder.CreateSExt(SV, DstTy)
2963 : Builder.CreateZExt(SV, DstTy);
2964 // If there are 3 arguments, it's a masked intrinsic so we need a select.
2965 if (CI->arg_size() == 3)
2966 Rep = emitX86Select(Builder, CI->getArgOperand(2), Rep,
2967 CI->getArgOperand(1));
2968 } else if (Name == "avx512.mask.pmov.qd.256" ||
2969 Name == "avx512.mask.pmov.qd.512" ||
2970 Name == "avx512.mask.pmov.wb.256" ||
2971 Name == "avx512.mask.pmov.wb.512") {
2972 Type *Ty = CI->getArgOperand(1)->getType();
2973 Rep = Builder.CreateTrunc(CI->getArgOperand(0), Ty);
2974 Rep = emitX86Select(Builder, CI->getArgOperand(2), Rep,
2975 CI->getArgOperand(1));
2976 } else if (IsX86 && (Name.starts_with("avx.vbroadcastf128") ||
2977 Name == "avx2.vbroadcasti128")) {
2978 // Replace vbroadcastf128/vbroadcasti128 with a vector load+shuffle.
2979 Type *EltTy = cast<VectorType>(CI->getType())->getElementType();
2980 unsigned NumSrcElts = 128 / EltTy->getPrimitiveSizeInBits();
2981 auto *VT = FixedVectorType::get(EltTy, NumSrcElts);
2982 Value *Op = Builder.CreatePointerCast(CI->getArgOperand(0),
2983 PointerType::getUnqual(VT));
2984 Value *Load = Builder.CreateAlignedLoad(VT, Op, Align(1));
2985 if (NumSrcElts == 2)
2986 Rep = Builder.CreateShuffleVector(Load, ArrayRef<int>{0, 1, 0, 1});
2987 else
2988 Rep = Builder.CreateShuffleVector(
2989 Load, ArrayRef<int>{0, 1, 2, 3, 0, 1, 2, 3});
2990 } else if (IsX86 && (Name.starts_with("avx512.mask.shuf.i") ||
2991 Name.starts_with("avx512.mask.shuf.f"))) {
2992 unsigned Imm = cast<ConstantInt>(CI->getArgOperand(2))->getZExtValue();
2993 Type *VT = CI->getType();
2994 unsigned NumLanes = VT->getPrimitiveSizeInBits() / 128;
2995 unsigned NumElementsInLane = 128 / VT->getScalarSizeInBits();
2996 unsigned ControlBitsMask = NumLanes - 1;
2997 unsigned NumControlBits = NumLanes / 2;
2998 SmallVector<int, 8> ShuffleMask(0);
2999
3000 for (unsigned l = 0; l != NumLanes; ++l) {
3001 unsigned LaneMask = (Imm >> (l * NumControlBits)) & ControlBitsMask;
3002 // We actually need the other source.
3003 if (l >= NumLanes / 2)
3004 LaneMask += NumLanes;
3005 for (unsigned i = 0; i != NumElementsInLane; ++i)
3006 ShuffleMask.push_back(LaneMask * NumElementsInLane + i);
3007 }
3008 Rep = Builder.CreateShuffleVector(CI->getArgOperand(0),
3009 CI->getArgOperand(1), ShuffleMask);
3010 Rep = emitX86Select(Builder, CI->getArgOperand(4), Rep,
3011 CI->getArgOperand(3));
3012 }else if (IsX86 && (Name.starts_with("avx512.mask.broadcastf") ||
3013 Name.starts_with("avx512.mask.broadcasti"))) {
3014 unsigned NumSrcElts =
3015 cast<FixedVectorType>(CI->getArgOperand(0)->getType())
3016 ->getNumElements();
3017 unsigned NumDstElts =
3018 cast<FixedVectorType>(CI->getType())->getNumElements();
3019
3020 SmallVector<int, 8> ShuffleMask(NumDstElts);
3021 for (unsigned i = 0; i != NumDstElts; ++i)
3022 ShuffleMask[i] = i % NumSrcElts;
3023
3024 Rep = Builder.CreateShuffleVector(CI->getArgOperand(0),
3025 CI->getArgOperand(0),
3026 ShuffleMask);
3027 Rep = emitX86Select(Builder, CI->getArgOperand(2), Rep,
3028 CI->getArgOperand(1));
3029 } else if (IsX86 && (Name.starts_with("avx2.pbroadcast") ||
3030 Name.starts_with("avx2.vbroadcast") ||
3031 Name.starts_with("avx512.pbroadcast") ||
3032 Name.starts_with("avx512.mask.broadcast.s"))) {
3033 // Replace vp?broadcasts with a vector shuffle.
3034 Value *Op = CI->getArgOperand(0);
3035 ElementCount EC = cast<VectorType>(CI->getType())->getElementCount();
3036 Type *MaskTy = VectorType::get(Type::getInt32Ty(C), EC);
3037 SmallVector<int, 8> M;
3038 ShuffleVectorInst::getShuffleMask(Constant::getNullValue(MaskTy), M);
3039 Rep = Builder.CreateShuffleVector(Op, M);
3040
3041 if (CI->arg_size() == 3)
3042 Rep = emitX86Select(Builder, CI->getArgOperand(2), Rep,
3043 CI->getArgOperand(1));
3044 } else if (IsX86 && (Name.starts_with("sse2.padds.") ||
3045 Name.starts_with("avx2.padds.") ||
3046 Name.starts_with("avx512.padds.") ||
3047 Name.starts_with("avx512.mask.padds."))) {
3048 Rep = upgradeX86BinaryIntrinsics(Builder, *CI, Intrinsic::sadd_sat);
3049 } else if (IsX86 && (Name.starts_with("sse2.psubs.") ||
3050 Name.starts_with("avx2.psubs.") ||
3051 Name.starts_with("avx512.psubs.") ||
3052 Name.starts_with("avx512.mask.psubs."))) {
3053 Rep = upgradeX86BinaryIntrinsics(Builder, *CI, Intrinsic::ssub_sat);
3054 } else if (IsX86 && (Name.starts_with("sse2.paddus.") ||
3055 Name.starts_with("avx2.paddus.") ||
3056 Name.starts_with("avx512.mask.paddus."))) {
3057 Rep = upgradeX86BinaryIntrinsics(Builder, *CI, Intrinsic::uadd_sat);
3058 } else if (IsX86 && (Name.starts_with("sse2.psubus.") ||
3059 Name.starts_with("avx2.psubus.") ||
3060 Name.starts_with("avx512.mask.psubus."))) {
3061 Rep = upgradeX86BinaryIntrinsics(Builder, *CI, Intrinsic::usub_sat);
3062 } else if (IsX86 && Name.starts_with("avx512.mask.palignr.")) {
3063 Rep = upgradeX86ALIGNIntrinsics(
3064 Builder, CI->getArgOperand(0), CI->getArgOperand(1),
3065 CI->getArgOperand(2), CI->getArgOperand(3), CI->getArgOperand(4),
3066 false);
3067 } else if (IsX86 && Name.starts_with("avx512.mask.valign.")) {
3068 Rep = upgradeX86ALIGNIntrinsics(
3069 Builder, CI->getArgOperand(0), CI->getArgOperand(1),
3070 CI->getArgOperand(2), CI->getArgOperand(3), CI->getArgOperand(4),
3071 true);
3072 } else if (IsX86 && (Name == "sse2.psll.dq" ||
3073 Name == "avx2.psll.dq")) {
3074 // 128/256-bit shift left specified in bits.
3075 unsigned Shift = cast<ConstantInt>(CI->getArgOperand(1))->getZExtValue();
3076 Rep = upgradeX86PSLLDQIntrinsics(Builder, CI->getArgOperand(0),
3077 Shift / 8); // Shift is in bits.
3078 } else if (IsX86 && (Name == "sse2.psrl.dq" ||
3079 Name == "avx2.psrl.dq")) {
3080 // 128/256-bit shift right specified in bits.
3081 unsigned Shift = cast<ConstantInt>(CI->getArgOperand(1))->getZExtValue();
3082 Rep = upgradeX86PSRLDQIntrinsics(Builder, CI->getArgOperand(0),
3083 Shift / 8); // Shift is in bits.
3084 } else if (IsX86 && (Name == "sse2.psll.dq.bs" ||
3085 Name == "avx2.psll.dq.bs" ||
3086 Name == "avx512.psll.dq.512")) {
3087 // 128/256/512-bit shift left specified in bytes.
3088 unsigned Shift = cast<ConstantInt>(CI->getArgOperand(1))->getZExtValue();
3089 Rep = upgradeX86PSLLDQIntrinsics(Builder, CI->getArgOperand(0), Shift);
3090 } else if (IsX86 && (Name == "sse2.psrl.dq.bs" ||
3091 Name == "avx2.psrl.dq.bs" ||
3092 Name == "avx512.psrl.dq.512")) {
3093 // 128/256/512-bit shift right specified in bytes.
3094 unsigned Shift = cast<ConstantInt>(CI->getArgOperand(1))->getZExtValue();
3095 Rep = upgradeX86PSRLDQIntrinsics(Builder, CI->getArgOperand(0), Shift);
3096 } else if (IsX86 && (Name == "sse41.pblendw" ||
3097 Name.starts_with("sse41.blendp") ||
3098 Name.starts_with("avx.blend.p") ||
3099 Name == "avx2.pblendw" ||
3100 Name.starts_with("avx2.pblendd."))) {
3101 Value *Op0 = CI->getArgOperand(0);
3102 Value *Op1 = CI->getArgOperand(1);
3103 unsigned Imm = cast <ConstantInt>(CI->getArgOperand(2))->getZExtValue();
3104 auto *VecTy = cast<FixedVectorType>(CI->getType());
3105 unsigned NumElts = VecTy->getNumElements();
3106
3107 SmallVector<int, 16> Idxs(NumElts);
3108 for (unsigned i = 0; i != NumElts; ++i)
3109 Idxs[i] = ((Imm >> (i%8)) & 1) ? i + NumElts : i;
3110
3111 Rep = Builder.CreateShuffleVector(Op0, Op1, Idxs);
3112 } else if (IsX86 && (Name.starts_with("avx.vinsertf128.") ||
3113 Name == "avx2.vinserti128" ||
3114 Name.starts_with("avx512.mask.insert"))) {
3115 Value *Op0 = CI->getArgOperand(0);
3116 Value *Op1 = CI->getArgOperand(1);
3117 unsigned Imm = cast<ConstantInt>(CI->getArgOperand(2))->getZExtValue();
3118 unsigned DstNumElts =
3119 cast<FixedVectorType>(CI->getType())->getNumElements();
3120 unsigned SrcNumElts =
3121 cast<FixedVectorType>(Op1->getType())->getNumElements();
3122 unsigned Scale = DstNumElts / SrcNumElts;
3123
3124 // Mask off the high bits of the immediate value; hardware ignores those.
3125 Imm = Imm % Scale;
3126
3127 // Extend the second operand into a vector the size of the destination.
3128 SmallVector<int, 8> Idxs(DstNumElts);
3129 for (unsigned i = 0; i != SrcNumElts; ++i)
3130 Idxs[i] = i;
3131 for (unsigned i = SrcNumElts; i != DstNumElts; ++i)
3132 Idxs[i] = SrcNumElts;
3133 Rep = Builder.CreateShuffleVector(Op1, Idxs);
3134
3135 // Insert the second operand into the first operand.
3136
3137 // Note that there is no guarantee that instruction lowering will actually
3138 // produce a vinsertf128 instruction for the created shuffles. In
3139 // particular, the 0 immediate case involves no lane changes, so it can
3140 // be handled as a blend.
3141
3142 // Example of shuffle mask for 32-bit elements:
3143 // Imm = 1 <i32 0, i32 1, i32 2, i32 3, i32 8, i32 9, i32 10, i32 11>
3144 // Imm = 0 <i32 8, i32 9, i32 10, i32 11, i32 4, i32 5, i32 6, i32 7 >
3145
3146 // First fill with identify mask.
3147 for (unsigned i = 0; i != DstNumElts; ++i)
3148 Idxs[i] = i;
3149 // Then replace the elements where we need to insert.
3150 for (unsigned i = 0; i != SrcNumElts; ++i)
3151 Idxs[i + Imm * SrcNumElts] = i + DstNumElts;
3152 Rep = Builder.CreateShuffleVector(Op0, Rep, Idxs);
3153
3154 // If the intrinsic has a mask operand, handle that.
3155 if (CI->arg_size() == 5)
3156 Rep = emitX86Select(Builder, CI->getArgOperand(4), Rep,
3157 CI->getArgOperand(3));
3158 } else if (IsX86 && (Name.starts_with("avx.vextractf128.") ||
3159 Name == "avx2.vextracti128" ||
3160 Name.starts_with("avx512.mask.vextract"))) {
3161 Value *Op0 = CI->getArgOperand(0);
3162 unsigned Imm = cast<ConstantInt>(CI->getArgOperand(1))->getZExtValue();
3163 unsigned DstNumElts =
3164 cast<FixedVectorType>(CI->getType())->getNumElements();
3165 unsigned SrcNumElts =
3166 cast<FixedVectorType>(Op0->getType())->getNumElements();
3167 unsigned Scale = SrcNumElts / DstNumElts;
3168
3169 // Mask off the high bits of the immediate value; hardware ignores those.
3170 Imm = Imm % Scale;
3171
3172 // Get indexes for the subvector of the input vector.
3173 SmallVector<int, 8> Idxs(DstNumElts);
3174 for (unsigned i = 0; i != DstNumElts; ++i) {
3175 Idxs[i] = i + (Imm * DstNumElts);
3176 }
3177 Rep = Builder.CreateShuffleVector(Op0, Op0, Idxs);
3178
3179 // If the intrinsic has a mask operand, handle that.
3180 if (CI->arg_size() == 4)
3181 Rep = emitX86Select(Builder, CI->getArgOperand(3), Rep,
3182 CI->getArgOperand(2));
3183 } else if (!IsX86 && Name == "stackprotectorcheck") {
3184 Rep = nullptr;
3185 } else if (IsX86 && (Name.starts_with("avx512.mask.perm.df.") ||
3186 Name.starts_with("avx512.mask.perm.di."))) {
3187 Value *Op0 = CI->getArgOperand(0);
3188 unsigned Imm = cast<ConstantInt>(CI->getArgOperand(1))->getZExtValue();
3189 auto *VecTy = cast<FixedVectorType>(CI->getType());
3190 unsigned NumElts = VecTy->getNumElements();
3191
3192 SmallVector<int, 8> Idxs(NumElts);
3193 for (unsigned i = 0; i != NumElts; ++i)
3194 Idxs[i] = (i & ~0x3) + ((Imm >> (2 * (i & 0x3))) & 3);
3195
3196 Rep = Builder.CreateShuffleVector(Op0, Op0, Idxs);
3197
3198 if (CI->arg_size() == 4)
3199 Rep = emitX86Select(Builder, CI->getArgOperand(3), Rep,
3200 CI->getArgOperand(2));
3201 } else if (IsX86 && (Name.starts_with("avx.vperm2f128.") ||
3202 Name == "avx2.vperm2i128")) {
3203 // The immediate permute control byte looks like this:
3204 // [1:0] - select 128 bits from sources for low half of destination
3205 // [2] - ignore
3206 // [3] - zero low half of destination
3207 // [5:4] - select 128 bits from sources for high half of destination
3208 // [6] - ignore
3209 // [7] - zero high half of destination
3210
3211 uint8_t Imm = cast<ConstantInt>(CI->getArgOperand(2))->getZExtValue();
3212
3213 unsigned NumElts = cast<FixedVectorType>(CI->getType())->getNumElements();
3214 unsigned HalfSize = NumElts / 2;
3215 SmallVector<int, 8> ShuffleMask(NumElts);
3216
3217 // Determine which operand(s) are actually in use for this instruction.
3218 Value *V0 = (Imm & 0x02) ? CI->getArgOperand(1) : CI->getArgOperand(0);
3219 Value *V1 = (Imm & 0x20) ? CI->getArgOperand(1) : CI->getArgOperand(0);
3220
3221 // If needed, replace operands based on zero mask.
3222 V0 = (Imm & 0x08) ? ConstantAggregateZero::get(CI->getType()) : V0;
3223 V1 = (Imm & 0x80) ? ConstantAggregateZero::get(CI->getType()) : V1;
3224
3225 // Permute low half of result.
3226 unsigned StartIndex = (Imm & 0x01) ? HalfSize : 0;
3227 for (unsigned i = 0; i < HalfSize; ++i)
3228 ShuffleMask[i] = StartIndex + i;
3229
3230 // Permute high half of result.
3231 StartIndex = (Imm & 0x10) ? HalfSize : 0;
3232 for (unsigned i = 0; i < HalfSize; ++i)
3233 ShuffleMask[i + HalfSize] = NumElts + StartIndex + i;
3234
3235 Rep = Builder.CreateShuffleVector(V0, V1, ShuffleMask);
3236
3237 } else if (IsX86 && (Name.starts_with("avx.vpermil.") ||
3238 Name == "sse2.pshuf.d" ||
3239 Name.starts_with("avx512.mask.vpermil.p") ||
3240 Name.starts_with("avx512.mask.pshuf.d."))) {
3241 Value *Op0 = CI->getArgOperand(0);
3242 unsigned Imm = cast<ConstantInt>(CI->getArgOperand(1))->getZExtValue();
3243 auto *VecTy = cast<FixedVectorType>(CI->getType());
3244 unsigned NumElts = VecTy->getNumElements();
3245 // Calculate the size of each index in the immediate.
3246 unsigned IdxSize = 64 / VecTy->getScalarSizeInBits();
3247 unsigned IdxMask = ((1 << IdxSize) - 1);
3248
3249 SmallVector<int, 8> Idxs(NumElts);
3250 // Lookup the bits for this element, wrapping around the immediate every
3251 // 8-bits. Elements are grouped into sets of 2 or 4 elements so we need
3252 // to offset by the first index of each group.
3253 for (unsigned i = 0; i != NumElts; ++i)
3254 Idxs[i] = ((Imm >> ((i * IdxSize) % 8)) & IdxMask) | (i & ~IdxMask);
3255
3256 Rep = Builder.CreateShuffleVector(Op0, Op0, Idxs);
3257
3258 if (CI->arg_size() == 4)
3259 Rep = emitX86Select(Builder, CI->getArgOperand(3), Rep,
3260 CI->getArgOperand(2));
3261 } else if (IsX86 && (Name == "sse2.pshufl.w" ||
3262 Name.starts_with("avx512.mask.pshufl.w."))) {
3263 Value *Op0 = CI->getArgOperand(0);
3264 unsigned Imm = cast<ConstantInt>(CI->getArgOperand(1))->getZExtValue();
3265 unsigned NumElts = cast<FixedVectorType>(CI->getType())->getNumElements();
3266
3267 SmallVector<int, 16> Idxs(NumElts);
3268 for (unsigned l = 0; l != NumElts; l += 8) {
3269 for (unsigned i = 0; i != 4; ++i)
3270 Idxs[i + l] = ((Imm >> (2 * i)) & 0x3) + l;
3271 for (unsigned i = 4; i != 8; ++i)
3272 Idxs[i + l] = i + l;
3273 }
3274
3275 Rep = Builder.CreateShuffleVector(Op0, Op0, Idxs);
3276
3277 if (CI->arg_size() == 4)
3278 Rep = emitX86Select(Builder, CI->getArgOperand(3), Rep,
3279 CI->getArgOperand(2));
3280 } else if (IsX86 && (Name == "sse2.pshufh.w" ||
3281 Name.starts_with("avx512.mask.pshufh.w."))) {
3282 Value *Op0 = CI->getArgOperand(0);
3283 unsigned Imm = cast<ConstantInt>(CI->getArgOperand(1))->getZExtValue();
3284 unsigned NumElts = cast<FixedVectorType>(CI->getType())->getNumElements();
3285
3286 SmallVector<int, 16> Idxs(NumElts);
3287 for (unsigned l = 0; l != NumElts; l += 8) {
3288 for (unsigned i = 0; i != 4; ++i)
3289 Idxs[i + l] = i + l;
3290 for (unsigned i = 0; i != 4; ++i)
3291 Idxs[i + l + 4] = ((Imm >> (2 * i)) & 0x3) + 4 + l;
3292 }
3293
3294 Rep = Builder.CreateShuffleVector(Op0, Op0, Idxs);
3295
3296 if (CI->arg_size() == 4)
3297 Rep = emitX86Select(Builder, CI->getArgOperand(3), Rep,
3298 CI->getArgOperand(2));
3299 } else if (IsX86 && Name.starts_with("avx512.mask.shuf.p")) {
3300 Value *Op0 = CI->getArgOperand(0);
3301 Value *Op1 = CI->getArgOperand(1);
3302 unsigned Imm = cast<ConstantInt>(CI->getArgOperand(2))->getZExtValue();
3303 unsigned NumElts = cast<FixedVectorType>(CI->getType())->getNumElements();
3304
3305 unsigned NumLaneElts = 128/CI->getType()->getScalarSizeInBits();
3306 unsigned HalfLaneElts = NumLaneElts / 2;
3307
3308 SmallVector<int, 16> Idxs(NumElts);
3309 for (unsigned i = 0; i != NumElts; ++i) {
3310 // Base index is the starting element of the lane.
3311 Idxs[i] = i - (i % NumLaneElts);
3312 // If we are half way through the lane switch to the other source.
3313 if ((i % NumLaneElts) >= HalfLaneElts)
3314 Idxs[i] += NumElts;
3315 // Now select the specific element. By adding HalfLaneElts bits from
3316 // the immediate. Wrapping around the immediate every 8-bits.
3317 Idxs[i] += (Imm >> ((i * HalfLaneElts) % 8)) & ((1 << HalfLaneElts) - 1);
3318 }
3319
3320 Rep = Builder.CreateShuffleVector(Op0, Op1, Idxs);
3321
3322 Rep = emitX86Select(Builder, CI->getArgOperand(4), Rep,
3323 CI->getArgOperand(3));
3324 } else if (IsX86 && (Name.starts_with("avx512.mask.movddup") ||
3325 Name.starts_with("avx512.mask.movshdup") ||
3326 Name.starts_with("avx512.mask.movsldup"))) {
3327 Value *Op0 = CI->getArgOperand(0);
3328 unsigned NumElts = cast<FixedVectorType>(CI->getType())->getNumElements();
3329 unsigned NumLaneElts = 128/CI->getType()->getScalarSizeInBits();
3330
3331 unsigned Offset = 0;
3332 if (Name.starts_with("avx512.mask.movshdup."))
3333 Offset = 1;
3334
3335 SmallVector<int, 16> Idxs(NumElts);
3336 for (unsigned l = 0; l != NumElts; l += NumLaneElts)
3337 for (unsigned i = 0; i != NumLaneElts; i += 2) {
3338 Idxs[i + l + 0] = i + l + Offset;
3339 Idxs[i + l + 1] = i + l + Offset;
3340 }
3341
3342 Rep = Builder.CreateShuffleVector(Op0, Op0, Idxs);
3343
3344 Rep = emitX86Select(Builder, CI->getArgOperand(2), Rep,
3345 CI->getArgOperand(1));
3346 } else if (IsX86 && (Name.starts_with("avx512.mask.punpckl") ||
3347 Name.starts_with("avx512.mask.unpckl."))) {
3348 Value *Op0 = CI->getArgOperand(0);
3349 Value *Op1 = CI->getArgOperand(1);
3350 int NumElts = cast<FixedVectorType>(CI->getType())->getNumElements();
3351 int NumLaneElts = 128/CI->getType()->getScalarSizeInBits();
3352
3353 SmallVector<int, 64> Idxs(NumElts);
3354 for (int l = 0; l != NumElts; l += NumLaneElts)
3355 for (int i = 0; i != NumLaneElts; ++i)
3356 Idxs[i + l] = l + (i / 2) + NumElts * (i % 2);
3357
3358 Rep = Builder.CreateShuffleVector(Op0, Op1, Idxs);
3359
3360 Rep = emitX86Select(Builder, CI->getArgOperand(3), Rep,
3361 CI->getArgOperand(2));
3362 } else if (IsX86 && (Name.starts_with("avx512.mask.punpckh") ||
3363 Name.starts_with("avx512.mask.unpckh."))) {
3364 Value *Op0 = CI->getArgOperand(0);
3365 Value *Op1 = CI->getArgOperand(1);
3366 int NumElts = cast<FixedVectorType>(CI->getType())->getNumElements();
3367 int NumLaneElts = 128/CI->getType()->getScalarSizeInBits();
3368
3369 SmallVector<int, 64> Idxs(NumElts);
3370 for (int l = 0; l != NumElts; l += NumLaneElts)
3371 for (int i = 0; i != NumLaneElts; ++i)
3372 Idxs[i + l] = (NumLaneElts / 2) + l + (i / 2) + NumElts * (i % 2);
3373
3374 Rep = Builder.CreateShuffleVector(Op0, Op1, Idxs);
3375
3376 Rep = emitX86Select(Builder, CI->getArgOperand(3), Rep,
3377 CI->getArgOperand(2));
3378 } else if (IsX86 && (Name.starts_with("avx512.mask.and.") ||
3379 Name.starts_with("avx512.mask.pand."))) {
3380 VectorType *FTy = cast<VectorType>(CI->getType());
3381 VectorType *ITy = VectorType::getInteger(FTy);
3382 Rep = Builder.CreateAnd(Builder.CreateBitCast(CI->getArgOperand(0), ITy),
3383 Builder.CreateBitCast(CI->getArgOperand(1), ITy));
3384 Rep = Builder.CreateBitCast(Rep, FTy);
3385 Rep = emitX86Select(Builder, CI->getArgOperand(3), Rep,
3386 CI->getArgOperand(2));
3387 } else if (IsX86 && (Name.starts_with("avx512.mask.andn.") ||
3388 Name.starts_with("avx512.mask.pandn."))) {
3389 VectorType *FTy = cast<VectorType>(CI->getType());
3390 VectorType *ITy = VectorType::getInteger(FTy);
3391 Rep = Builder.CreateNot(Builder.CreateBitCast(CI->getArgOperand(0), ITy));
3392 Rep = Builder.CreateAnd(Rep,
3393 Builder.CreateBitCast(CI->getArgOperand(1), ITy));
3394 Rep = Builder.CreateBitCast(Rep, FTy);
3395 Rep = emitX86Select(Builder, CI->getArgOperand(3), Rep,
3396 CI->getArgOperand(2));
3397 } else if (IsX86 && (Name.starts_with("avx512.mask.or.") ||
3398 Name.starts_with("avx512.mask.por."))) {
3399 VectorType *FTy = cast<VectorType>(CI->getType());
3400 VectorType *ITy = VectorType::getInteger(FTy);
3401 Rep = Builder.CreateOr(Builder.CreateBitCast(CI->getArgOperand(0), ITy),
3402 Builder.CreateBitCast(CI->getArgOperand(1), ITy));
3403 Rep = Builder.CreateBitCast(Rep, FTy);
3404 Rep = emitX86Select(Builder, CI->getArgOperand(3), Rep,
3405 CI->getArgOperand(2));
3406 } else if (IsX86 && (Name.starts_with("avx512.mask.xor.") ||
3407 Name.starts_with("avx512.mask.pxor."))) {
3408 VectorType *FTy = cast<VectorType>(CI->getType());
3409 VectorType *ITy = VectorType::getInteger(FTy);
3410 Rep = Builder.CreateXor(Builder.CreateBitCast(CI->getArgOperand(0), ITy),
3411 Builder.CreateBitCast(CI->getArgOperand(1), ITy));
3412 Rep = Builder.CreateBitCast(Rep, FTy);
3413 Rep = emitX86Select(Builder, CI->getArgOperand(3), Rep,
3414 CI->getArgOperand(2));
3415 } else if (IsX86 && Name.starts_with("avx512.mask.padd.")) {
3416 Rep = Builder.CreateAdd(CI->getArgOperand(0), CI->getArgOperand(1));
3417 Rep = emitX86Select(Builder, CI->getArgOperand(3), Rep,
3418 CI->getArgOperand(2));
3419 } else if (IsX86 && Name.starts_with("avx512.mask.psub.")) {
3420 Rep = Builder.CreateSub(CI->getArgOperand(0), CI->getArgOperand(1));
3421 Rep = emitX86Select(Builder, CI->getArgOperand(3), Rep,
3422 CI->getArgOperand(2));
3423 } else if (IsX86 && Name.starts_with("avx512.mask.pmull.")) {
3424 Rep = Builder.CreateMul(CI->getArgOperand(0), CI->getArgOperand(1));
3425 Rep = emitX86Select(Builder, CI->getArgOperand(3), Rep,
3426 CI->getArgOperand(2));
3427 } else if (IsX86 && Name.starts_with("avx512.mask.add.p")) {
3428 if (Name.ends_with(".512")) {
3429 Intrinsic::ID IID;
3430 if (Name[17] == 's')
3431 IID = Intrinsic::x86_avx512_add_ps_512;
3432 else
3433 IID = Intrinsic::x86_avx512_add_pd_512;
3434
3435 Rep = Builder.CreateCall(Intrinsic::getDeclaration(F->getParent(), IID),
3436 { CI->getArgOperand(0), CI->getArgOperand(1),
3437 CI->getArgOperand(4) });
3438 } else {
3439 Rep = Builder.CreateFAdd(CI->getArgOperand(0), CI->getArgOperand(1));
3440 }
3441 Rep = emitX86Select(Builder, CI->getArgOperand(3), Rep,
3442 CI->getArgOperand(2));
3443 } else if (IsX86 && Name.starts_with("avx512.mask.div.p")) {
3444 if (Name.ends_with(".512")) {
3445 Intrinsic::ID IID;
3446 if (Name[17] == 's')
3447 IID = Intrinsic::x86_avx512_div_ps_512;
3448 else
3449 IID = Intrinsic::x86_avx512_div_pd_512;
3450
3451 Rep = Builder.CreateCall(Intrinsic::getDeclaration(F->getParent(), IID),
3452 { CI->getArgOperand(0), CI->getArgOperand(1),
3453 CI->getArgOperand(4) });
3454 } else {
3455 Rep = Builder.CreateFDiv(CI->getArgOperand(0), CI->getArgOperand(1));
3456 }
3457 Rep = emitX86Select(Builder, CI->getArgOperand(3), Rep,
3458 CI->getArgOperand(2));
3459 } else if (IsX86 && Name.starts_with("avx512.mask.mul.p")) {
3460 if (Name.ends_with(".512")) {
3461 Intrinsic::ID IID;
3462 if (Name[17] == 's')
3463 IID = Intrinsic::x86_avx512_mul_ps_512;
3464 else
3465 IID = Intrinsic::x86_avx512_mul_pd_512;
3466
3467 Rep = Builder.CreateCall(Intrinsic::getDeclaration(F->getParent(), IID),
3468 { CI->getArgOperand(0), CI->getArgOperand(1),
3469 CI->getArgOperand(4) });
3470 } else {
3471 Rep = Builder.CreateFMul(CI->getArgOperand(0), CI->getArgOperand(1));
3472 }
3473 Rep = emitX86Select(Builder, CI->getArgOperand(3), Rep,
3474 CI->getArgOperand(2));
3475 } else if (IsX86 && Name.starts_with("avx512.mask.sub.p")) {
3476 if (Name.ends_with(".512")) {
3477 Intrinsic::ID IID;
3478 if (Name[17] == 's')
3479 IID = Intrinsic::x86_avx512_sub_ps_512;
3480 else
3481 IID = Intrinsic::x86_avx512_sub_pd_512;
3482
3483 Rep = Builder.CreateCall(Intrinsic::getDeclaration(F->getParent(), IID),
3484 { CI->getArgOperand(0), CI->getArgOperand(1),
3485 CI->getArgOperand(4) });
3486 } else {
3487 Rep = Builder.CreateFSub(CI->getArgOperand(0), CI->getArgOperand(1));
3488 }
3489 Rep = emitX86Select(Builder, CI->getArgOperand(3), Rep,
3490 CI->getArgOperand(2));
3491 } else if (IsX86 && (Name.starts_with("avx512.mask.max.p") ||
3492 Name.starts_with("avx512.mask.min.p")) &&
3493 Name.drop_front(18) == ".512") {
3494 bool IsDouble = Name[17] == 'd';
3495 bool IsMin = Name[13] == 'i';
3496 static const Intrinsic::ID MinMaxTbl[2][2] = {
3497 { Intrinsic::x86_avx512_max_ps_512, Intrinsic::x86_avx512_max_pd_512 },
3498 { Intrinsic::x86_avx512_min_ps_512, Intrinsic::x86_avx512_min_pd_512 }
3499 };
3500 Intrinsic::ID IID = MinMaxTbl[IsMin][IsDouble];
3501
3502 Rep = Builder.CreateCall(Intrinsic::getDeclaration(F->getParent(), IID),
3503 { CI->getArgOperand(0), CI->getArgOperand(1),
3504 CI->getArgOperand(4) });
3505 Rep = emitX86Select(Builder, CI->getArgOperand(3), Rep,
3506 CI->getArgOperand(2));
3507 } else if (IsX86 && Name.starts_with("avx512.mask.lzcnt.")) {
3508 Rep = Builder.CreateCall(Intrinsic::getDeclaration(F->getParent(),
3509 Intrinsic::ctlz,
3510 CI->getType()),
3511 { CI->getArgOperand(0), Builder.getInt1(false) });
3512 Rep = emitX86Select(Builder, CI->getArgOperand(2), Rep,
3513 CI->getArgOperand(1));
3514 } else if (IsX86 && Name.starts_with("avx512.mask.psll")) {
3515 bool IsImmediate = Name[16] == 'i' ||
3516 (Name.size() > 18 && Name[18] == 'i');
3517 bool IsVariable = Name[16] == 'v';
3518 char Size = Name[16] == '.' ? Name[17] :
3519 Name[17] == '.' ? Name[18] :
3520 Name[18] == '.' ? Name[19] :
3521 Name[20];
3522
3523 Intrinsic::ID IID;
3524 if (IsVariable && Name[17] != '.') {
3525 if (Size == 'd' && Name[17] == '2') // avx512.mask.psllv2.di
3526 IID = Intrinsic::x86_avx2_psllv_q;
3527 else if (Size == 'd' && Name[17] == '4') // avx512.mask.psllv4.di
3528 IID = Intrinsic::x86_avx2_psllv_q_256;
3529 else if (Size == 's' && Name[17] == '4') // avx512.mask.psllv4.si
3530 IID = Intrinsic::x86_avx2_psllv_d;
3531 else if (Size == 's' && Name[17] == '8') // avx512.mask.psllv8.si
3532 IID = Intrinsic::x86_avx2_psllv_d_256;
3533 else if (Size == 'h' && Name[17] == '8') // avx512.mask.psllv8.hi
3534 IID = Intrinsic::x86_avx512_psllv_w_128;
3535 else if (Size == 'h' && Name[17] == '1') // avx512.mask.psllv16.hi
3536 IID = Intrinsic::x86_avx512_psllv_w_256;
3537 else if (Name[17] == '3' && Name[18] == '2') // avx512.mask.psllv32hi
3538 IID = Intrinsic::x86_avx512_psllv_w_512;
3539 else
3540 llvm_unreachable("Unexpected size");
3541 } else if (Name.ends_with(".128")) {
3542 if (Size == 'd') // avx512.mask.psll.d.128, avx512.mask.psll.di.128
3543 IID = IsImmediate ? Intrinsic::x86_sse2_pslli_d
3544 : Intrinsic::x86_sse2_psll_d;
3545 else if (Size == 'q') // avx512.mask.psll.q.128, avx512.mask.psll.qi.128
3546 IID = IsImmediate ? Intrinsic::x86_sse2_pslli_q
3547 : Intrinsic::x86_sse2_psll_q;
3548 else if (Size == 'w') // avx512.mask.psll.w.128, avx512.mask.psll.wi.128
3549 IID = IsImmediate ? Intrinsic::x86_sse2_pslli_w
3550 : Intrinsic::x86_sse2_psll_w;
3551 else
3552 llvm_unreachable("Unexpected size");
3553 } else if (Name.ends_with(".256")) {
3554 if (Size == 'd') // avx512.mask.psll.d.256, avx512.mask.psll.di.256
3555 IID = IsImmediate ? Intrinsic::x86_avx2_pslli_d
3556 : Intrinsic::x86_avx2_psll_d;
3557 else if (Size == 'q') // avx512.mask.psll.q.256, avx512.mask.psll.qi.256
3558 IID = IsImmediate ? Intrinsic::x86_avx2_pslli_q
3559 : Intrinsic::x86_avx2_psll_q;
3560 else if (Size == 'w') // avx512.mask.psll.w.256, avx512.mask.psll.wi.256
3561 IID = IsImmediate ? Intrinsic::x86_avx2_pslli_w
3562 : Intrinsic::x86_avx2_psll_w;
3563 else
3564 llvm_unreachable("Unexpected size");
3565 } else {
3566 if (Size == 'd') // psll.di.512, pslli.d, psll.d, psllv.d.512
3567 IID = IsImmediate ? Intrinsic::x86_avx512_pslli_d_512 :
3568 IsVariable ? Intrinsic::x86_avx512_psllv_d_512 :
3569 Intrinsic::x86_avx512_psll_d_512;
3570 else if (Size == 'q') // psll.qi.512, pslli.q, psll.q, psllv.q.512
3571 IID = IsImmediate ? Intrinsic::x86_avx512_pslli_q_512 :
3572 IsVariable ? Intrinsic::x86_avx512_psllv_q_512 :
3573 Intrinsic::x86_avx512_psll_q_512;
3574 else if (Size == 'w') // psll.wi.512, pslli.w, psll.w
3575 IID = IsImmediate ? Intrinsic::x86_avx512_pslli_w_512
3576 : Intrinsic::x86_avx512_psll_w_512;
3577 else
3578 llvm_unreachable("Unexpected size");
3579 }
3580
3581 Rep = upgradeX86MaskedShift(Builder, *CI, IID);
3582 } else if (IsX86 && Name.starts_with("avx512.mask.psrl")) {
3583 bool IsImmediate = Name[16] == 'i' ||
3584 (Name.size() > 18 && Name[18] == 'i');
3585 bool IsVariable = Name[16] == 'v';
3586 char Size = Name[16] == '.' ? Name[17] :
3587 Name[17] == '.' ? Name[18] :
3588 Name[18] == '.' ? Name[19] :
3589 Name[20];
3590
3591 Intrinsic::ID IID;
3592 if (IsVariable && Name[17] != '.') {
3593 if (Size == 'd' && Name[17] == '2') // avx512.mask.psrlv2.di
3594 IID = Intrinsic::x86_avx2_psrlv_q;
3595 else if (Size == 'd' && Name[17] == '4') // avx512.mask.psrlv4.di
3596 IID = Intrinsic::x86_avx2_psrlv_q_256;
3597 else if (Size == 's' && Name[17] == '4') // avx512.mask.psrlv4.si
3598 IID = Intrinsic::x86_avx2_psrlv_d;
3599 else if (Size == 's' && Name[17] == '8') // avx512.mask.psrlv8.si
3600 IID = Intrinsic::x86_avx2_psrlv_d_256;
3601 else if (Size == 'h' && Name[17] == '8') // avx512.mask.psrlv8.hi
3602 IID = Intrinsic::x86_avx512_psrlv_w_128;
3603 else if (Size == 'h' && Name[17] == '1') // avx512.mask.psrlv16.hi
3604 IID = Intrinsic::x86_avx512_psrlv_w_256;
3605 else if (Name[17] == '3' && Name[18] == '2') // avx512.mask.psrlv32hi
3606 IID = Intrinsic::x86_avx512_psrlv_w_512;
3607 else
3608 llvm_unreachable("Unexpected size");
3609 } else if (Name.ends_with(".128")) {
3610 if (Size == 'd') // avx512.mask.psrl.d.128, avx512.mask.psrl.di.128
3611 IID = IsImmediate ? Intrinsic::x86_sse2_psrli_d
3612 : Intrinsic::x86_sse2_psrl_d;
3613 else if (Size == 'q') // avx512.mask.psrl.q.128, avx512.mask.psrl.qi.128
3614 IID = IsImmediate ? Intrinsic::x86_sse2_psrli_q
3615 : Intrinsic::x86_sse2_psrl_q;
3616 else if (Size == 'w') // avx512.mask.psrl.w.128, avx512.mask.psrl.wi.128
3617 IID = IsImmediate ? Intrinsic::x86_sse2_psrli_w
3618 : Intrinsic::x86_sse2_psrl_w;
3619 else
3620 llvm_unreachable("Unexpected size");
3621 } else if (Name.ends_with(".256")) {
3622 if (Size == 'd') // avx512.mask.psrl.d.256, avx512.mask.psrl.di.256
3623 IID = IsImmediate ? Intrinsic::x86_avx2_psrli_d
3624 : Intrinsic::x86_avx2_psrl_d;
3625 else if (Size == 'q') // avx512.mask.psrl.q.256, avx512.mask.psrl.qi.256
3626 IID = IsImmediate ? Intrinsic::x86_avx2_psrli_q
3627 : Intrinsic::x86_avx2_psrl_q;
3628 else if (Size == 'w') // avx512.mask.psrl.w.256, avx512.mask.psrl.wi.256
3629 IID = IsImmediate ? Intrinsic::x86_avx2_psrli_w
3630 : Intrinsic::x86_avx2_psrl_w;
3631 else
3632 llvm_unreachable("Unexpected size");
3633 } else {
3634 if (Size == 'd') // psrl.di.512, psrli.d, psrl.d, psrl.d.512
3635 IID = IsImmediate ? Intrinsic::x86_avx512_psrli_d_512 :
3636 IsVariable ? Intrinsic::x86_avx512_psrlv_d_512 :
3637 Intrinsic::x86_avx512_psrl_d_512;
3638 else if (Size == 'q') // psrl.qi.512, psrli.q, psrl.q, psrl.q.512
3639 IID = IsImmediate ? Intrinsic::x86_avx512_psrli_q_512 :
3640 IsVariable ? Intrinsic::x86_avx512_psrlv_q_512 :
3641 Intrinsic::x86_avx512_psrl_q_512;
3642 else if (Size == 'w') // psrl.wi.512, psrli.w, psrl.w)
3643 IID = IsImmediate ? Intrinsic::x86_avx512_psrli_w_512
3644 : Intrinsic::x86_avx512_psrl_w_512;
3645 else
3646 llvm_unreachable("Unexpected size");
3647 }
3648
3649 Rep = upgradeX86MaskedShift(Builder, *CI, IID);
3650 } else if (IsX86 && Name.starts_with("avx512.mask.psra")) {
3651 bool IsImmediate = Name[16] == 'i' ||
3652 (Name.size() > 18 && Name[18] == 'i');
3653 bool IsVariable = Name[16] == 'v';
3654 char Size = Name[16] == '.' ? Name[17] :
3655 Name[17] == '.' ? Name[18] :
3656 Name[18] == '.' ? Name[19] :
3657 Name[20];
3658
3659 Intrinsic::ID IID;
3660 if (IsVariable && Name[17] != '.') {
3661 if (Size == 's' && Name[17] == '4') // avx512.mask.psrav4.si
3662 IID = Intrinsic::x86_avx2_psrav_d;
3663 else if (Size == 's' && Name[17] == '8') // avx512.mask.psrav8.si
3664 IID = Intrinsic::x86_avx2_psrav_d_256;
3665 else if (Size == 'h' && Name[17] == '8') // avx512.mask.psrav8.hi
3666 IID = Intrinsic::x86_avx512_psrav_w_128;
3667 else if (Size == 'h' && Name[17] == '1') // avx512.mask.psrav16.hi
3668 IID = Intrinsic::x86_avx512_psrav_w_256;
3669 else if (Name[17] == '3' && Name[18] == '2') // avx512.mask.psrav32hi
3670 IID = Intrinsic::x86_avx512_psrav_w_512;
3671 else
3672 llvm_unreachable("Unexpected size");
3673 } else if (Name.ends_with(".128")) {
3674 if (Size == 'd') // avx512.mask.psra.d.128, avx512.mask.psra.di.128
3675 IID = IsImmediate ? Intrinsic::x86_sse2_psrai_d
3676 : Intrinsic::x86_sse2_psra_d;
3677 else if (Size == 'q') // avx512.mask.psra.q.128, avx512.mask.psra.qi.128
3678 IID = IsImmediate ? Intrinsic::x86_avx512_psrai_q_128 :
3679 IsVariable ? Intrinsic::x86_avx512_psrav_q_128 :
3680 Intrinsic::x86_avx512_psra_q_128;
3681 else if (Size == 'w') // avx512.mask.psra.w.128, avx512.mask.psra.wi.128
3682 IID = IsImmediate ? Intrinsic::x86_sse2_psrai_w
3683 : Intrinsic::x86_sse2_psra_w;
3684 else
3685 llvm_unreachable("Unexpected size");
3686 } else if (Name.ends_with(".256")) {
3687 if (Size == 'd') // avx512.mask.psra.d.256, avx512.mask.psra.di.256
3688 IID = IsImmediate ? Intrinsic::x86_avx2_psrai_d
3689 : Intrinsic::x86_avx2_psra_d;
3690 else if (Size == 'q') // avx512.mask.psra.q.256, avx512.mask.psra.qi.256
3691 IID = IsImmediate ? Intrinsic::x86_avx512_psrai_q_256 :
3692 IsVariable ? Intrinsic::x86_avx512_psrav_q_256 :
3693 Intrinsic::x86_avx512_psra_q_256;
3694 else if (Size == 'w') // avx512.mask.psra.w.256, avx512.mask.psra.wi.256
3695 IID = IsImmediate ? Intrinsic::x86_avx2_psrai_w
3696 : Intrinsic::x86_avx2_psra_w;
3697 else
3698 llvm_unreachable("Unexpected size");
3699 } else {
3700 if (Size == 'd') // psra.di.512, psrai.d, psra.d, psrav.d.512
3701 IID = IsImmediate ? Intrinsic::x86_avx512_psrai_d_512 :
3702 IsVariable ? Intrinsic::x86_avx512_psrav_d_512 :
3703 Intrinsic::x86_avx512_psra_d_512;
3704 else if (Size == 'q') // psra.qi.512, psrai.q, psra.q
3705 IID = IsImmediate ? Intrinsic::x86_avx512_psrai_q_512 :
3706 IsVariable ? Intrinsic::x86_avx512_psrav_q_512 :
3707 Intrinsic::x86_avx512_psra_q_512;
3708 else if (Size == 'w') // psra.wi.512, psrai.w, psra.w
3709 IID = IsImmediate ? Intrinsic::x86_avx512_psrai_w_512
3710 : Intrinsic::x86_avx512_psra_w_512;
3711 else
3712 llvm_unreachable("Unexpected size");
3713 }
3714
3715 Rep = upgradeX86MaskedShift(Builder, *CI, IID);
3716 } else if (IsX86 && Name.starts_with("avx512.mask.move.s")) {
3717 Rep = upgradeMaskedMove(Builder, *CI);
3718 } else if (IsX86 && Name.starts_with("avx512.cvtmask2")) {
3719 Rep = upgradeMaskToInt(Builder, *CI);
3720 } else if (IsX86 && Name.ends_with(".movntdqa")) {
3721 MDNode *Node = MDNode::get(
3722 C, ConstantAsMetadata::get(ConstantInt::get(Type::getInt32Ty(C), 1)));
3723
3724 Value *Ptr = CI->getArgOperand(0);
3725
3726 // Convert the type of the pointer to a pointer to the stored type.
3727 Value *BC = Builder.CreateBitCast(
3728 Ptr, PointerType::getUnqual(CI->getType()), "cast");
3729 LoadInst *LI = Builder.CreateAlignedLoad(
3730 CI->getType(), BC,
3731 Align(CI->getType()->getPrimitiveSizeInBits().getFixedValue() / 8));
3732 LI->setMetadata(LLVMContext::MD_nontemporal, Node);
3733 Rep = LI;
3734 } else if (IsX86 && (Name.starts_with("fma.vfmadd.") ||
3735 Name.starts_with("fma.vfmsub.") ||
3736 Name.starts_with("fma.vfnmadd.") ||
3737 Name.starts_with("fma.vfnmsub."))) {
3738 bool NegMul = Name[6] == 'n';
3739 bool NegAcc = NegMul ? Name[8] == 's' : Name[7] == 's';
3740 bool IsScalar = NegMul ? Name[12] == 's' : Name[11] == 's';
3741
3742 Value *Ops[] = { CI->getArgOperand(0), CI->getArgOperand(1),
3743 CI->getArgOperand(2) };
3744
3745 if (IsScalar) {
3746 Ops[0] = Builder.CreateExtractElement(Ops[0], (uint64_t)0);
3747 Ops[1] = Builder.CreateExtractElement(Ops[1], (uint64_t)0);
3748 Ops[2] = Builder.CreateExtractElement(Ops[2], (uint64_t)0);
3749 }
3750
3751 if (NegMul && !IsScalar)
3752 Ops[0] = Builder.CreateFNeg(Ops[0]);
3753 if (NegMul && IsScalar)
3754 Ops[1] = Builder.CreateFNeg(Ops[1]);
3755 if (NegAcc)
3756 Ops[2] = Builder.CreateFNeg(Ops[2]);
3757
3758 Rep = Builder.CreateCall(Intrinsic::getDeclaration(CI->getModule(),
3759 Intrinsic::fma,
3760 Ops[0]->getType()),
3761 Ops);
3762
3763 if (IsScalar)
3764 Rep = Builder.CreateInsertElement(CI->getArgOperand(0), Rep,
3765 (uint64_t)0);
3766 } else if (IsX86 && Name.starts_with("fma4.vfmadd.s")) {
3767 Value *Ops[] = { CI->getArgOperand(0), CI->getArgOperand(1),
3768 CI->getArgOperand(2) };
3769
3770 Ops[0] = Builder.CreateExtractElement(Ops[0], (uint64_t)0);
3771 Ops[1] = Builder.CreateExtractElement(Ops[1], (uint64_t)0);
3772 Ops[2] = Builder.CreateExtractElement(Ops[2], (uint64_t)0);
3773
3774 Rep = Builder.CreateCall(Intrinsic::getDeclaration(CI->getModule(),
3775 Intrinsic::fma,
3776 Ops[0]->getType()),
3777 Ops);
3778
3779 Rep = Builder.CreateInsertElement(Constant::getNullValue(CI->getType()),
3780 Rep, (uint64_t)0);
3781 } else if (IsX86 && (Name.starts_with("avx512.mask.vfmadd.s") ||
3782 Name.starts_with("avx512.maskz.vfmadd.s") ||
3783 Name.starts_with("avx512.mask3.vfmadd.s") ||
3784 Name.starts_with("avx512.mask3.vfmsub.s") ||
3785 Name.starts_with("avx512.mask3.vfnmsub.s"))) {
3786 bool IsMask3 = Name[11] == '3';
3787 bool IsMaskZ = Name[11] == 'z';
3788 // Drop the "avx512.mask." to make it easier.
3789 Name = Name.drop_front(IsMask3 || IsMaskZ ? 13 : 12);
3790 bool NegMul = Name[2] == 'n';
3791 bool NegAcc = NegMul ? Name[4] == 's' : Name[3] == 's';
3792
3793 Value *A = CI->getArgOperand(0);
3794 Value *B = CI->getArgOperand(1);
3795 Value *C = CI->getArgOperand(2);
3796
3797 if (NegMul && (IsMask3 || IsMaskZ))
3798 A = Builder.CreateFNeg(A);
3799 if (NegMul && !(IsMask3 || IsMaskZ))
3800 B = Builder.CreateFNeg(B);
3801 if (NegAcc)
3802 C = Builder.CreateFNeg(C);
3803
3804 A = Builder.CreateExtractElement(A, (uint64_t)0);
3805 B = Builder.CreateExtractElement(B, (uint64_t)0);
3806 C = Builder.CreateExtractElement(C, (uint64_t)0);
3807
3808 if (!isa<ConstantInt>(CI->getArgOperand(4)) ||
3809 cast<ConstantInt>(CI->getArgOperand(4))->getZExtValue() != 4) {
3810 Value *Ops[] = { A, B, C, CI->getArgOperand(4) };
3811
3812 Intrinsic::ID IID;
3813 if (Name.back() == 'd')
3814 IID = Intrinsic::x86_avx512_vfmadd_f64;
3815 else
3816 IID = Intrinsic::x86_avx512_vfmadd_f32;
3817 Function *FMA = Intrinsic::getDeclaration(CI->getModule(), IID);
3818 Rep = Builder.CreateCall(FMA, Ops);
3819 } else {
3820 Function *FMA = Intrinsic::getDeclaration(CI->getModule(),
3821 Intrinsic::fma,
3822 A->getType());
3823 Rep = Builder.CreateCall(FMA, { A, B, C });
3824 }
3825
3826 Value *PassThru = IsMaskZ ? Constant::getNullValue(Rep->getType()) :
3827 IsMask3 ? C : A;
3828
3829 // For Mask3 with NegAcc, we need to create a new extractelement that
3830 // avoids the negation above.
3831 if (NegAcc && IsMask3)
3832 PassThru = Builder.CreateExtractElement(CI->getArgOperand(2),
3833 (uint64_t)0);
3834
3835 Rep = emitX86ScalarSelect(Builder, CI->getArgOperand(3), Rep, PassThru);
3836 Rep = Builder.CreateInsertElement(CI->getArgOperand(IsMask3 ? 2 : 0),
3837 Rep, (uint64_t)0);
3838 } else if (IsX86 && (Name.starts_with("avx512.mask.vfmadd.p") ||
3839 Name.starts_with("avx512.mask.vfnmadd.p") ||
3840 Name.starts_with("avx512.mask.vfnmsub.p") ||
3841 Name.starts_with("avx512.mask3.vfmadd.p") ||
3842 Name.starts_with("avx512.mask3.vfmsub.p") ||
3843 Name.starts_with("avx512.mask3.vfnmsub.p") ||
3844 Name.starts_with("avx512.maskz.vfmadd.p"))) {
3845 bool IsMask3 = Name[11] == '3';
3846 bool IsMaskZ = Name[11] == 'z';
3847 // Drop the "avx512.mask." to make it easier.
3848 Name = Name.drop_front(IsMask3 || IsMaskZ ? 13 : 12);
3849 bool NegMul = Name[2] == 'n';
3850 bool NegAcc = NegMul ? Name[4] == 's' : Name[3] == 's';
3851
3852 Value *A = CI->getArgOperand(0);
3853 Value *B = CI->getArgOperand(1);
3854 Value *C = CI->getArgOperand(2);
3855
3856 if (NegMul && (IsMask3 || IsMaskZ))
3857 A = Builder.CreateFNeg(A);
3858 if (NegMul && !(IsMask3 || IsMaskZ))
3859 B = Builder.CreateFNeg(B);
3860 if (NegAcc)
3861 C = Builder.CreateFNeg(C);
3862
3863 if (CI->arg_size() == 5 &&
3864 (!isa<ConstantInt>(CI->getArgOperand(4)) ||
3865 cast<ConstantInt>(CI->getArgOperand(4))->getZExtValue() != 4)) {
3866 Intrinsic::ID IID;
3867 // Check the character before ".512" in string.
3868 if (Name[Name.size()-5] == 's')
3869 IID = Intrinsic::x86_avx512_vfmadd_ps_512;
3870 else
3871 IID = Intrinsic::x86_avx512_vfmadd_pd_512;
3872
3873 Rep = Builder.CreateCall(Intrinsic::getDeclaration(F->getParent(), IID),
3874 { A, B, C, CI->getArgOperand(4) });
3875 } else {
3876 Function *FMA = Intrinsic::getDeclaration(CI->getModule(),
3877 Intrinsic::fma,
3878 A->getType());
3879 Rep = Builder.CreateCall(FMA, { A, B, C });
3880 }
3881
3882 Value *PassThru = IsMaskZ ? llvm::Constant::getNullValue(CI->getType()) :
3883 IsMask3 ? CI->getArgOperand(2) :
3884 CI->getArgOperand(0);
3885
3886 Rep = emitX86Select(Builder, CI->getArgOperand(3), Rep, PassThru);
3887 } else if (IsX86 && Name.starts_with("fma.vfmsubadd.p")) {
3888 unsigned VecWidth = CI->getType()->getPrimitiveSizeInBits();
3889 unsigned EltWidth = CI->getType()->getScalarSizeInBits();
3890 Intrinsic::ID IID;
3891 if (VecWidth == 128 && EltWidth == 32)
3892 IID = Intrinsic::x86_fma_vfmaddsub_ps;
3893 else if (VecWidth == 256 && EltWidth == 32)
3894 IID = Intrinsic::x86_fma_vfmaddsub_ps_256;
3895 else if (VecWidth == 128 && EltWidth == 64)
3896 IID = Intrinsic::x86_fma_vfmaddsub_pd;
3897 else if (VecWidth == 256 && EltWidth == 64)
3898 IID = Intrinsic::x86_fma_vfmaddsub_pd_256;
3899 else
3900 llvm_unreachable("Unexpected intrinsic");
3901
3902 Value *Ops[] = { CI->getArgOperand(0), CI->getArgOperand(1),
3903 CI->getArgOperand(2) };
3904 Ops[2] = Builder.CreateFNeg(Ops[2]);
3905 Rep = Builder.CreateCall(Intrinsic::getDeclaration(F->getParent(), IID),
3906 Ops);
3907 } else if (IsX86 && (Name.starts_with("avx512.mask.vfmaddsub.p") ||
3908 Name.starts_with("avx512.mask3.vfmaddsub.p") ||
3909 Name.starts_with("avx512.maskz.vfmaddsub.p") ||
3910 Name.starts_with("avx512.mask3.vfmsubadd.p"))) {
3911 bool IsMask3 = Name[11] == '3';
3912 bool IsMaskZ = Name[11] == 'z';
3913 // Drop the "avx512.mask." to make it easier.
3914 Name = Name.drop_front(IsMask3 || IsMaskZ ? 13 : 12);
3915 bool IsSubAdd = Name[3] == 's';
3916 if (CI->arg_size() == 5) {
3917 Intrinsic::ID IID;
3918 // Check the character before ".512" in string.
3919 if (Name[Name.size()-5] == 's')
3920 IID = Intrinsic::x86_avx512_vfmaddsub_ps_512;
3921 else
3922 IID = Intrinsic::x86_avx512_vfmaddsub_pd_512;
3923
3924 Value *Ops[] = { CI->getArgOperand(0), CI->getArgOperand(1),
3925 CI->getArgOperand(2), CI->getArgOperand(4) };
3926 if (IsSubAdd)
3927 Ops[2] = Builder.CreateFNeg(Ops[2]);
3928
3929 Rep = Builder.CreateCall(Intrinsic::getDeclaration(F->getParent(), IID),
3930 Ops);
3931 } else {
3932 int NumElts = cast<FixedVectorType>(CI->getType())->getNumElements();
3933
3934 Value *Ops[] = { CI->getArgOperand(0), CI->getArgOperand(1),
3935 CI->getArgOperand(2) };
3936
3937 Function *FMA = Intrinsic::getDeclaration(CI->getModule(), Intrinsic::fma,
3938 Ops[0]->getType());
3939 Value *Odd = Builder.CreateCall(FMA, Ops);
3940 Ops[2] = Builder.CreateFNeg(Ops[2]);
3941 Value *Even = Builder.CreateCall(FMA, Ops);
3942
3943 if (IsSubAdd)
3944 std::swap(Even, Odd);
3945
3946 SmallVector<int, 32> Idxs(NumElts);
3947 for (int i = 0; i != NumElts; ++i)
3948 Idxs[i] = i + (i % 2) * NumElts;
3949
3950 Rep = Builder.CreateShuffleVector(Even, Odd, Idxs);
3951 }
3952
3953 Value *PassThru = IsMaskZ ? llvm::Constant::getNullValue(CI->getType()) :
3954 IsMask3 ? CI->getArgOperand(2) :
3955 CI->getArgOperand(0);
3956
3957 Rep = emitX86Select(Builder, CI->getArgOperand(3), Rep, PassThru);
3958 } else if (IsX86 && (Name.starts_with("avx512.mask.pternlog.") ||
3959 Name.starts_with("avx512.maskz.pternlog."))) {
3960 bool ZeroMask = Name[11] == 'z';
3961 unsigned VecWidth = CI->getType()->getPrimitiveSizeInBits();
3962 unsigned EltWidth = CI->getType()->getScalarSizeInBits();
3963 Intrinsic::ID IID;
3964 if (VecWidth == 128 && EltWidth == 32)
3965 IID = Intrinsic::x86_avx512_pternlog_d_128;
3966 else if (VecWidth == 256 && EltWidth == 32)
3967 IID = Intrinsic::x86_avx512_pternlog_d_256;
3968 else if (VecWidth == 512 && EltWidth == 32)
3969 IID = Intrinsic::x86_avx512_pternlog_d_512;
3970 else if (VecWidth == 128 && EltWidth == 64)
3971 IID = Intrinsic::x86_avx512_pternlog_q_128;
3972 else if (VecWidth == 256 && EltWidth == 64)
3973 IID = Intrinsic::x86_avx512_pternlog_q_256;
3974 else if (VecWidth == 512 && EltWidth == 64)
3975 IID = Intrinsic::x86_avx512_pternlog_q_512;
3976 else
3977 llvm_unreachable("Unexpected intrinsic");
3978
3979 Value *Args[] = { CI->getArgOperand(0) , CI->getArgOperand(1),
3980 CI->getArgOperand(2), CI->getArgOperand(3) };
3981 Rep = Builder.CreateCall(Intrinsic::getDeclaration(CI->getModule(), IID),
3982 Args);
3983 Value *PassThru = ZeroMask ? ConstantAggregateZero::get(CI->getType())
3984 : CI->getArgOperand(0);
3985 Rep = emitX86Select(Builder, CI->getArgOperand(4), Rep, PassThru);
3986 } else if (IsX86 && (Name.starts_with("avx512.mask.vpmadd52") ||
3987 Name.starts_with("avx512.maskz.vpmadd52"))) {
3988 bool ZeroMask = Name[11] == 'z';
3989 bool High = Name[20] == 'h' || Name[21] == 'h';
3990 unsigned VecWidth = CI->getType()->getPrimitiveSizeInBits();
3991 Intrinsic::ID IID;
3992 if (VecWidth == 128 && !High)
3993 IID = Intrinsic::x86_avx512_vpmadd52l_uq_128;
3994 else if (VecWidth == 256 && !High)
3995 IID = Intrinsic::x86_avx512_vpmadd52l_uq_256;
3996 else if (VecWidth == 512 && !High)
3997 IID = Intrinsic::x86_avx512_vpmadd52l_uq_512;
3998 else if (VecWidth == 128 && High)
3999 IID = Intrinsic::x86_avx512_vpmadd52h_uq_128;
4000 else if (VecWidth == 256 && High)
4001 IID = Intrinsic::x86_avx512_vpmadd52h_uq_256;
4002 else if (VecWidth == 512 && High)
4003 IID = Intrinsic::x86_avx512_vpmadd52h_uq_512;
4004 else
4005 llvm_unreachable("Unexpected intrinsic");
4006
4007 Value *Args[] = { CI->getArgOperand(0) , CI->getArgOperand(1),
4008 CI->getArgOperand(2) };
4009 Rep = Builder.CreateCall(Intrinsic::getDeclaration(CI->getModule(), IID),
4010 Args);
4011 Value *PassThru = ZeroMask ? ConstantAggregateZero::get(CI->getType())
4012 : CI->getArgOperand(0);
4013 Rep = emitX86Select(Builder, CI->getArgOperand(3), Rep, PassThru);
4014 } else if (IsX86 && (Name.starts_with("avx512.mask.vpermi2var.") ||
4015 Name.starts_with("avx512.mask.vpermt2var.") ||
4016 Name.starts_with("avx512.maskz.vpermt2var."))) {
4017 bool ZeroMask = Name[11] == 'z';
4018 bool IndexForm = Name[17] == 'i';
4019 Rep = upgradeX86VPERMT2Intrinsics(Builder, *CI, ZeroMask, IndexForm);
4020 } else if (IsX86 && (Name.starts_with("avx512.mask.vpdpbusd.") ||
4021 Name.starts_with("avx512.maskz.vpdpbusd.") ||
4022 Name.starts_with("avx512.mask.vpdpbusds.") ||
4023 Name.starts_with("avx512.maskz.vpdpbusds."))) {
4024 bool ZeroMask = Name[11] == 'z';
4025 bool IsSaturating = Name[ZeroMask ? 21 : 20] == 's';
4026 unsigned VecWidth = CI->getType()->getPrimitiveSizeInBits();
4027 Intrinsic::ID IID;
4028 if (VecWidth == 128 && !IsSaturating)
4029 IID = Intrinsic::x86_avx512_vpdpbusd_128;
4030 else if (VecWidth == 256 && !IsSaturating)
4031 IID = Intrinsic::x86_avx512_vpdpbusd_256;
4032 else if (VecWidth == 512 && !IsSaturating)
4033 IID = Intrinsic::x86_avx512_vpdpbusd_512;
4034 else if (VecWidth == 128 && IsSaturating)
4035 IID = Intrinsic::x86_avx512_vpdpbusds_128;
4036 else if (VecWidth == 256 && IsSaturating)
4037 IID = Intrinsic::x86_avx512_vpdpbusds_256;
4038 else if (VecWidth == 512 && IsSaturating)
4039 IID = Intrinsic::x86_avx512_vpdpbusds_512;
4040 else
4041 llvm_unreachable("Unexpected intrinsic");
4042
4043 Value *Args[] = { CI->getArgOperand(0), CI->getArgOperand(1),
4044 CI->getArgOperand(2) };
4045 Rep = Builder.CreateCall(Intrinsic::getDeclaration(CI->getModule(), IID),
4046 Args);
4047 Value *PassThru = ZeroMask ? ConstantAggregateZero::get(CI->getType())
4048 : CI->getArgOperand(0);
4049 Rep = emitX86Select(Builder, CI->getArgOperand(3), Rep, PassThru);
4050 } else if (IsX86 && (Name.starts_with("avx512.mask.vpdpwssd.") ||
4051 Name.starts_with("avx512.maskz.vpdpwssd.") ||
4052 Name.starts_with("avx512.mask.vpdpwssds.") ||
4053 Name.starts_with("avx512.maskz.vpdpwssds."))) {
4054 bool ZeroMask = Name[11] == 'z';
4055 bool IsSaturating = Name[ZeroMask ? 21 : 20] == 's';
4056 unsigned VecWidth = CI->getType()->getPrimitiveSizeInBits();
4057 Intrinsic::ID IID;
4058 if (VecWidth == 128 && !IsSaturating)
4059 IID = Intrinsic::x86_avx512_vpdpwssd_128;
4060 else if (VecWidth == 256 && !IsSaturating)
4061 IID = Intrinsic::x86_avx512_vpdpwssd_256;
4062 else if (VecWidth == 512 && !IsSaturating)
4063 IID = Intrinsic::x86_avx512_vpdpwssd_512;
4064 else if (VecWidth == 128 && IsSaturating)
4065 IID = Intrinsic::x86_avx512_vpdpwssds_128;
4066 else if (VecWidth == 256 && IsSaturating)
4067 IID = Intrinsic::x86_avx512_vpdpwssds_256;
4068 else if (VecWidth == 512 && IsSaturating)
4069 IID = Intrinsic::x86_avx512_vpdpwssds_512;
4070 else
4071 llvm_unreachable("Unexpected intrinsic");
4072
4073 Value *Args[] = { CI->getArgOperand(0), CI->getArgOperand(1),
4074 CI->getArgOperand(2) };
4075 Rep = Builder.CreateCall(Intrinsic::getDeclaration(CI->getModule(), IID),
4076 Args);
4077 Value *PassThru = ZeroMask ? ConstantAggregateZero::get(CI->getType())
4078 : CI->getArgOperand(0);
4079 Rep = emitX86Select(Builder, CI->getArgOperand(3), Rep, PassThru);
4080 } else if (IsX86 && (Name == "addcarryx.u32" || Name == "addcarryx.u64" ||
4081 Name == "addcarry.u32" || Name == "addcarry.u64" ||
4082 Name == "subborrow.u32" || Name == "subborrow.u64")) {
4083 Intrinsic::ID IID;
4084 if (Name[0] == 'a' && Name.back() == '2')
4085 IID = Intrinsic::x86_addcarry_32;
4086 else if (Name[0] == 'a' && Name.back() == '4')
4087 IID = Intrinsic::x86_addcarry_64;
4088 else if (Name[0] == 's' && Name.back() == '2')
4089 IID = Intrinsic::x86_subborrow_32;
4090 else if (Name[0] == 's' && Name.back() == '4')
4091 IID = Intrinsic::x86_subborrow_64;
4092 else
4093 llvm_unreachable("Unexpected intrinsic");
4094
4095 // Make a call with 3 operands.
4096 Value *Args[] = { CI->getArgOperand(0), CI->getArgOperand(1),
4097 CI->getArgOperand(2)};
4098 Value *NewCall = Builder.CreateCall(
4099 Intrinsic::getDeclaration(CI->getModule(), IID),
4100 Args);
4101
4102 // Extract the second result and store it.
4103 Value *Data = Builder.CreateExtractValue(NewCall, 1);
4104 // Cast the pointer to the right type.
4105 Value *Ptr = Builder.CreateBitCast(CI->getArgOperand(3),
4106 llvm::PointerType::getUnqual(Data->getType()));
4107 Builder.CreateAlignedStore(Data, Ptr, Align(1));
4108 // Replace the original call result with the first result of the new call.
4109 Value *CF = Builder.CreateExtractValue(NewCall, 0);
4110
4111 CI->replaceAllUsesWith(CF);
4112 Rep = nullptr;
4113 } else if (IsX86 && Name.starts_with("avx512.mask.") &&
4114 upgradeAVX512MaskToSelect(Name, Builder, *CI, Rep)) {
4115 // Rep will be updated by the call in the condition.
4116 } else if (IsNVVM && (Name == "abs.i" || Name == "abs.ll")) {
4117 Value *Arg = CI->getArgOperand(0);
4118 Value *Neg = Builder.CreateNeg(Arg, "neg");
4119 Value *Cmp = Builder.CreateICmpSGE(
4120 Arg, llvm::Constant::getNullValue(Arg->getType()), "abs.cond");
4121 Rep = Builder.CreateSelect(Cmp, Arg, Neg, "abs");
4122 } else if (IsNVVM && (Name.starts_with("atomic.load.add.f32.p") ||
4123 Name.starts_with("atomic.load.add.f64.p"))) {
4124 Value *Ptr = CI->getArgOperand(0);
4125 Value *Val = CI->getArgOperand(1);
4126 Rep = Builder.CreateAtomicRMW(AtomicRMWInst::FAdd, Ptr, Val, MaybeAlign(),
4127 AtomicOrdering::SequentiallyConsistent);
4128 } else if (IsNVVM && Name.consume_front("max.") &&
4129 (Name == "s" || Name == "i" || Name == "ll" || Name == "us" ||
4130 Name == "ui" || Name == "ull")) {
4131 Value *Arg0 = CI->getArgOperand(0);
4132 Value *Arg1 = CI->getArgOperand(1);
4133 Value *Cmp = Name.starts_with("u")
4134 ? Builder.CreateICmpUGE(Arg0, Arg1, "max.cond")
4135 : Builder.CreateICmpSGE(Arg0, Arg1, "max.cond");
4136 Rep = Builder.CreateSelect(Cmp, Arg0, Arg1, "max");
4137 } else if (IsNVVM && Name.consume_front("min.") &&
4138 (Name == "s" || Name == "i" || Name == "ll" || Name == "us" ||
4139 Name == "ui" || Name == "ull")) {
4140 Value *Arg0 = CI->getArgOperand(0);
4141 Value *Arg1 = CI->getArgOperand(1);
4142 Value *Cmp = Name.starts_with("u")
4143 ? Builder.CreateICmpULE(Arg0, Arg1, "min.cond")
4144 : Builder.CreateICmpSLE(Arg0, Arg1, "min.cond");
4145 Rep = Builder.CreateSelect(Cmp, Arg0, Arg1, "min");
4146 } else if (IsNVVM && Name == "clz.ll") {
4147 // llvm.nvvm.clz.ll returns an i32, but llvm.ctlz.i64 returns an i64.
4148 Value *Arg = CI->getArgOperand(0);
4149 Value *Ctlz = Builder.CreateCall(
4150 Intrinsic::getDeclaration(F->getParent(), Intrinsic::ctlz,
4151 {Arg->getType()}),
4152 {Arg, Builder.getFalse()}, "ctlz");
4153 Rep = Builder.CreateTrunc(Ctlz, Builder.getInt32Ty(), "ctlz.trunc");
4154 } else if (IsNVVM && Name == "popc.ll") {
4155 // llvm.nvvm.popc.ll returns an i32, but llvm.ctpop.i64 returns an
4156 // i64.
4157 Value *Arg = CI->getArgOperand(0);
4158 Value *Popc = Builder.CreateCall(
4159 Intrinsic::getDeclaration(F->getParent(), Intrinsic::ctpop,
4160 {Arg->getType()}),
4161 Arg, "ctpop");
4162 Rep = Builder.CreateTrunc(Popc, Builder.getInt32Ty(), "ctpop.trunc");
4163 } else if (IsNVVM) {
4164 if (Name == "h2f") {
4165 Rep =
4166 Builder.CreateCall(Intrinsic::getDeclaration(
4167 F->getParent(), Intrinsic::convert_from_fp16,
4168 {Builder.getFloatTy()}),
4169 CI->getArgOperand(0), "h2f");
4170 } else {
4171 Intrinsic::ID IID = shouldUpgradeNVPTXBF16Intrinsic(Name);
4172 if (IID != Intrinsic::not_intrinsic &&
4173 !F->getReturnType()->getScalarType()->isBFloatTy()) {
4174 rename(F);
4175 NewFn = Intrinsic::getDeclaration(F->getParent(), IID);
4176 SmallVector<Value *, 2> Args;
4177 for (size_t I = 0; I < NewFn->arg_size(); ++I) {
4178 Value *Arg = CI->getArgOperand(I);
4179 Type *OldType = Arg->getType();
4180 Type *NewType = NewFn->getArg(I)->getType();
4181 Args.push_back((OldType->isIntegerTy() &&
4182 NewType->getScalarType()->isBFloatTy())
4183 ? Builder.CreateBitCast(Arg, NewType)
4184 : Arg);
4185 }
4186 Rep = Builder.CreateCall(NewFn, Args);
4187 if (F->getReturnType()->isIntegerTy())
4188 Rep = Builder.CreateBitCast(Rep, F->getReturnType());
4189 }
4190 }
4191 } else if (IsARM) {
4192 Rep = upgradeARMIntrinsicCall(Name, CI, F, Builder);
4193 } else if (IsAMDGCN) {
4194 Rep = upgradeAMDGCNIntrinsicCall(Name, CI, F, Builder);
4195 } else {
4196 llvm_unreachable("Unknown function for CallBase upgrade.");
4197 }
4198
4199 if (Rep)
4200 CI->replaceAllUsesWith(Rep);
4201 CI->eraseFromParent();
4202 return;
4203 }
4204
4205 const auto &DefaultCase = [&]() -> void {
4206 if (CI->getFunctionType() == NewFn->getFunctionType()) {
4207 // Handle generic mangling change.
4208 assert(
4209 (CI->getCalledFunction()->getName() != NewFn->getName()) &&
4210 "Unknown function for CallBase upgrade and isn't just a name change");
4211 CI->setCalledFunction(NewFn);
4212 return;
4213 }
4214
4215 // This must be an upgrade from a named to a literal struct.
4216 if (auto *OldST = dyn_cast<StructType>(CI->getType())) {
4217 assert(OldST != NewFn->getReturnType() &&
4218 "Return type must have changed");
4219 assert(OldST->getNumElements() ==
4220 cast<StructType>(NewFn->getReturnType())->getNumElements() &&
4221 "Must have same number of elements");
4222
4223 SmallVector<Value *> Args(CI->args());
4224 Value *NewCI = Builder.CreateCall(NewFn, Args);
4225 Value *Res = PoisonValue::get(OldST);
4226 for (unsigned Idx = 0; Idx < OldST->getNumElements(); ++Idx) {
4227 Value *Elem = Builder.CreateExtractValue(NewCI, Idx);
4228 Res = Builder.CreateInsertValue(Res, Elem, Idx);
4229 }
4230 CI->replaceAllUsesWith(Res);
4231 CI->eraseFromParent();
4232 return;
4233 }
4234
4235 // We're probably about to produce something invalid. Let the verifier catch
4236 // it instead of dying here.
4237 CI->setCalledOperand(
4238 ConstantExpr::getPointerCast(NewFn, CI->getCalledOperand()->getType()));
4239 return;
4240 };
4241 CallInst *NewCall = nullptr;
4242 switch (NewFn->getIntrinsicID()) {
4243 default: {
4244 DefaultCase();
4245 return;
4246 }
4247 case Intrinsic::arm_neon_vst1:
4248 case Intrinsic::arm_neon_vst2:
4249 case Intrinsic::arm_neon_vst3:
4250 case Intrinsic::arm_neon_vst4:
4251 case Intrinsic::arm_neon_vst2lane:
4252 case Intrinsic::arm_neon_vst3lane:
4253 case Intrinsic::arm_neon_vst4lane: {
4254 SmallVector<Value *, 4> Args(CI->args());
4255 NewCall = Builder.CreateCall(NewFn, Args);
4256 break;
4257 }
4258 case Intrinsic::aarch64_sve_bfmlalb_lane_v2:
4259 case Intrinsic::aarch64_sve_bfmlalt_lane_v2:
4260 case Intrinsic::aarch64_sve_bfdot_lane_v2: {
4261 LLVMContext &Ctx = F->getParent()->getContext();
4262 SmallVector<Value *, 4> Args(CI->args());
4263 Args[3] = ConstantInt::get(Type::getInt32Ty(Ctx),
4264 cast<ConstantInt>(Args[3])->getZExtValue());
4265 NewCall = Builder.CreateCall(NewFn, Args);
4266 break;
4267 }
4268 case Intrinsic::aarch64_sve_ld3_sret:
4269 case Intrinsic::aarch64_sve_ld4_sret:
4270 case Intrinsic::aarch64_sve_ld2_sret: {
4271 StringRef Name = F->getName();
4272 Name = Name.substr(5);
4273 unsigned N = StringSwitch<unsigned>(Name)
4274 .StartsWith("aarch64.sve.ld2", 2)
4275 .StartsWith("aarch64.sve.ld3", 3)
4276 .StartsWith("aarch64.sve.ld4", 4)
4277 .Default(0);
4278 ScalableVectorType *RetTy =
4279 dyn_cast<ScalableVectorType>(F->getReturnType());
4280 unsigned MinElts = RetTy->getMinNumElements() / N;
4281 SmallVector<Value *, 2> Args(CI->args());
4282 Value *NewLdCall = Builder.CreateCall(NewFn, Args);
4283 Value *Ret = llvm::PoisonValue::get(RetTy);
4284 for (unsigned I = 0; I < N; I++) {
4285 Value *Idx = ConstantInt::get(Type::getInt64Ty(C), I * MinElts);
4286 Value *SRet = Builder.CreateExtractValue(NewLdCall, I);
4287 Ret = Builder.CreateInsertVector(RetTy, Ret, SRet, Idx);
4288 }
4289 NewCall = dyn_cast<CallInst>(Ret);
4290 break;
4291 }
4292
4293 case Intrinsic::coro_end: {
4294 SmallVector<Value *, 3> Args(CI->args());
4295 Args.push_back(ConstantTokenNone::get(CI->getContext()));
4296 NewCall = Builder.CreateCall(NewFn, Args);
4297 break;
4298 }
4299
4300 case Intrinsic::vector_extract: {
4301 StringRef Name = F->getName();
4302 Name = Name.substr(5); // Strip llvm
4303 if (!Name.starts_with("aarch64.sve.tuple.get")) {
4304 DefaultCase();
4305 return;
4306 }
4307 ScalableVectorType *RetTy =
4308 dyn_cast<ScalableVectorType>(F->getReturnType());
4309 unsigned MinElts = RetTy->getMinNumElements();
4310 unsigned I = cast<ConstantInt>(CI->getArgOperand(1))->getZExtValue();
4311 Value *NewIdx = ConstantInt::get(Type::getInt64Ty(C), I * MinElts);
4312 NewCall = Builder.CreateCall(NewFn, {CI->getArgOperand(0), NewIdx});
4313 break;
4314 }
4315
4316 case Intrinsic::vector_insert: {
4317 StringRef Name = F->getName();
4318 Name = Name.substr(5);
4319 if (!Name.starts_with("aarch64.sve.tuple")) {
4320 DefaultCase();
4321 return;
4322 }
4323 if (Name.starts_with("aarch64.sve.tuple.set")) {
4324 unsigned I = dyn_cast<ConstantInt>(CI->getArgOperand(1))->getZExtValue();
4325 ScalableVectorType *Ty =
4326 dyn_cast<ScalableVectorType>(CI->getArgOperand(2)->getType());
4327 Value *NewIdx =
4328 ConstantInt::get(Type::getInt64Ty(C), I * Ty->getMinNumElements());
4329 NewCall = Builder.CreateCall(
4330 NewFn, {CI->getArgOperand(0), CI->getArgOperand(2), NewIdx});
4331 break;
4332 }
4333 if (Name.starts_with("aarch64.sve.tuple.create")) {
4334 unsigned N = StringSwitch<unsigned>(Name)
4335 .StartsWith("aarch64.sve.tuple.create2", 2)
4336 .StartsWith("aarch64.sve.tuple.create3", 3)
4337 .StartsWith("aarch64.sve.tuple.create4", 4)
4338 .Default(0);
4339 assert(N > 1 && "Create is expected to be between 2-4");
4340 ScalableVectorType *RetTy =
4341 dyn_cast<ScalableVectorType>(F->getReturnType());
4342 Value *Ret = llvm::PoisonValue::get(RetTy);
4343 unsigned MinElts = RetTy->getMinNumElements() / N;
4344 for (unsigned I = 0; I < N; I++) {
4345 Value *Idx = ConstantInt::get(Type::getInt64Ty(C), I * MinElts);
4346 Value *V = CI->getArgOperand(I);
4347 Ret = Builder.CreateInsertVector(RetTy, Ret, V, Idx);
4348 }
4349 NewCall = dyn_cast<CallInst>(Ret);
4350 }
4351 break;
4352 }
4353
4354 case Intrinsic::arm_neon_bfdot:
4355 case Intrinsic::arm_neon_bfmmla:
4356 case Intrinsic::arm_neon_bfmlalb:
4357 case Intrinsic::arm_neon_bfmlalt:
4358 case Intrinsic::aarch64_neon_bfdot:
4359 case Intrinsic::aarch64_neon_bfmmla:
4360 case Intrinsic::aarch64_neon_bfmlalb:
4361 case Intrinsic::aarch64_neon_bfmlalt: {
4362 SmallVector<Value *, 3> Args;
4363 assert(CI->arg_size() == 3 &&
4364 "Mismatch between function args and call args");
4365 size_t OperandWidth =
4366 CI->getArgOperand(1)->getType()->getPrimitiveSizeInBits();
4367 assert((OperandWidth == 64 || OperandWidth == 128) &&
4368 "Unexpected operand width");
4369 Type *NewTy = FixedVectorType::get(Type::getBFloatTy(C), OperandWidth / 16);
4370 auto Iter = CI->args().begin();
4371 Args.push_back(*Iter++);
4372 Args.push_back(Builder.CreateBitCast(*Iter++, NewTy));
4373 Args.push_back(Builder.CreateBitCast(*Iter++, NewTy));
4374 NewCall = Builder.CreateCall(NewFn, Args);
4375 break;
4376 }
4377
4378 case Intrinsic::bitreverse:
4379 NewCall = Builder.CreateCall(NewFn, {CI->getArgOperand(0)});
4380 break;
4381
4382 case Intrinsic::ctlz:
4383 case Intrinsic::cttz:
4384 assert(CI->arg_size() == 1 &&
4385 "Mismatch between function args and call args");
4386 NewCall =
4387 Builder.CreateCall(NewFn, {CI->getArgOperand(0), Builder.getFalse()});
4388 break;
4389
4390 case Intrinsic::objectsize: {
4391 Value *NullIsUnknownSize =
4392 CI->arg_size() == 2 ? Builder.getFalse() : CI->getArgOperand(2);
4393 Value *Dynamic =
4394 CI->arg_size() < 4 ? Builder.getFalse() : CI->getArgOperand(3);
4395 NewCall = Builder.CreateCall(
4396 NewFn, {CI->getArgOperand(0), CI->getArgOperand(1), NullIsUnknownSize, Dynamic});
4397 break;
4398 }
4399
4400 case Intrinsic::ctpop:
4401 NewCall = Builder.CreateCall(NewFn, {CI->getArgOperand(0)});
4402 break;
4403
4404 case Intrinsic::convert_from_fp16:
4405 NewCall = Builder.CreateCall(NewFn, {CI->getArgOperand(0)});
4406 break;
4407
4408 case Intrinsic::dbg_value: {
4409 StringRef Name = F->getName();
4410 Name = Name.substr(5); // Strip llvm.
4411 // Upgrade `dbg.addr` to `dbg.value` with `DW_OP_deref`.
4412 if (Name.starts_with("dbg.addr")) {
4413 DIExpression *Expr = cast<DIExpression>(
4414 cast<MetadataAsValue>(CI->getArgOperand(2))->getMetadata());
4415 Expr = DIExpression::append(Expr, dwarf::DW_OP_deref);
4416 NewCall =
4417 Builder.CreateCall(NewFn, {CI->getArgOperand(0), CI->getArgOperand(1),
4418 MetadataAsValue::get(C, Expr)});
4419 break;
4420 }
4421
4422 // Upgrade from the old version that had an extra offset argument.
4423 assert(CI->arg_size() == 4);
4424 // Drop nonzero offsets instead of attempting to upgrade them.
4425 if (auto *Offset = dyn_cast_or_null<Constant>(CI->getArgOperand(1)))
4426 if (Offset->isZeroValue()) {
4427 NewCall = Builder.CreateCall(
4428 NewFn,
4429 {CI->getArgOperand(0), CI->getArgOperand(2), CI->getArgOperand(3)});
4430 break;
4431 }
4432 CI->eraseFromParent();
4433 return;
4434 }
4435
4436 case Intrinsic::ptr_annotation:
4437 // Upgrade from versions that lacked the annotation attribute argument.
4438 if (CI->arg_size() != 4) {
4439 DefaultCase();
4440 return;
4441 }
4442
4443 // Create a new call with an added null annotation attribute argument.
4444 NewCall =
4445 Builder.CreateCall(NewFn, {CI->getArgOperand(0), CI->getArgOperand(1),
4446 CI->getArgOperand(2), CI->getArgOperand(3),
4447 Constant::getNullValue(Builder.getPtrTy())});
4448 NewCall->takeName(CI);
4449 CI->replaceAllUsesWith(NewCall);
4450 CI->eraseFromParent();
4451 return;
4452
4453 case Intrinsic::var_annotation:
4454 // Upgrade from versions that lacked the annotation attribute argument.
4455 if (CI->arg_size() != 4) {
4456 DefaultCase();
4457 return;
4458 }
4459 // Create a new call with an added null annotation attribute argument.
4460 NewCall =
4461 Builder.CreateCall(NewFn, {CI->getArgOperand(0), CI->getArgOperand(1),
4462 CI->getArgOperand(2), CI->getArgOperand(3),
4463 Constant::getNullValue(Builder.getPtrTy())});
4464 NewCall->takeName(CI);
4465 CI->replaceAllUsesWith(NewCall);
4466 CI->eraseFromParent();
4467 return;
4468
4469 case Intrinsic::riscv_aes32dsi:
4470 case Intrinsic::riscv_aes32dsmi:
4471 case Intrinsic::riscv_aes32esi:
4472 case Intrinsic::riscv_aes32esmi:
4473 case Intrinsic::riscv_sm4ks:
4474 case Intrinsic::riscv_sm4ed: {
4475 // The last argument to these intrinsics used to be i8 and changed to i32.
4476 // The type overload for sm4ks and sm4ed was removed.
4477 Value *Arg2 = CI->getArgOperand(2);
4478 if (Arg2->getType()->isIntegerTy(32) && !CI->getType()->isIntegerTy(64))
4479 return;
4480
4481 Value *Arg0 = CI->getArgOperand(0);
4482 Value *Arg1 = CI->getArgOperand(1);
4483 if (CI->getType()->isIntegerTy(64)) {
4484 Arg0 = Builder.CreateTrunc(Arg0, Builder.getInt32Ty());
4485 Arg1 = Builder.CreateTrunc(Arg1, Builder.getInt32Ty());
4486 }
4487
4488 Arg2 = ConstantInt::get(Type::getInt32Ty(C),
4489 cast<ConstantInt>(Arg2)->getZExtValue());
4490
4491 NewCall = Builder.CreateCall(NewFn, {Arg0, Arg1, Arg2});
4492 Value *Res = NewCall;
4493 if (Res->getType() != CI->getType())
4494 Res = Builder.CreateIntCast(NewCall, CI->getType(), /*isSigned*/ true);
4495 NewCall->takeName(CI);
4496 CI->replaceAllUsesWith(Res);
4497 CI->eraseFromParent();
4498 return;
4499 }
4500 case Intrinsic::riscv_sha256sig0:
4501 case Intrinsic::riscv_sha256sig1:
4502 case Intrinsic::riscv_sha256sum0:
4503 case Intrinsic::riscv_sha256sum1:
4504 case Intrinsic::riscv_sm3p0:
4505 case Intrinsic::riscv_sm3p1: {
4506 // The last argument to these intrinsics used to be i8 and changed to i32.
4507 // The type overload for sm4ks and sm4ed was removed.
4508 if (!CI->getType()->isIntegerTy(64))
4509 return;
4510
4511 Value *Arg =
4512 Builder.CreateTrunc(CI->getArgOperand(0), Builder.getInt32Ty());
4513
4514 NewCall = Builder.CreateCall(NewFn, Arg);
4515 Value *Res =
4516 Builder.CreateIntCast(NewCall, CI->getType(), /*isSigned*/ true);
4517 NewCall->takeName(CI);
4518 CI->replaceAllUsesWith(Res);
4519 CI->eraseFromParent();
4520 return;
4521 }
4522
4523 case Intrinsic::x86_xop_vfrcz_ss:
4524 case Intrinsic::x86_xop_vfrcz_sd:
4525 NewCall = Builder.CreateCall(NewFn, {CI->getArgOperand(1)});
4526 break;
4527
4528 case Intrinsic::x86_xop_vpermil2pd:
4529 case Intrinsic::x86_xop_vpermil2ps:
4530 case Intrinsic::x86_xop_vpermil2pd_256:
4531 case Intrinsic::x86_xop_vpermil2ps_256: {
4532 SmallVector<Value *, 4> Args(CI->args());
4533 VectorType *FltIdxTy = cast<VectorType>(Args[2]->getType());
4534 VectorType *IntIdxTy = VectorType::getInteger(FltIdxTy);
4535 Args[2] = Builder.CreateBitCast(Args[2], IntIdxTy);
4536 NewCall = Builder.CreateCall(NewFn, Args);
4537 break;
4538 }
4539
4540 case Intrinsic::x86_sse41_ptestc:
4541 case Intrinsic::x86_sse41_ptestz:
4542 case Intrinsic::x86_sse41_ptestnzc: {
4543 // The arguments for these intrinsics used to be v4f32, and changed
4544 // to v2i64. This is purely a nop, since those are bitwise intrinsics.
4545 // So, the only thing required is a bitcast for both arguments.
4546 // First, check the arguments have the old type.
4547 Value *Arg0 = CI->getArgOperand(0);
4548 if (Arg0->getType() != FixedVectorType::get(Type::getFloatTy(C), 4))
4549 return;
4550
4551 // Old intrinsic, add bitcasts
4552 Value *Arg1 = CI->getArgOperand(1);
4553
4554 auto *NewVecTy = FixedVectorType::get(Type::getInt64Ty(C), 2);
4555
4556 Value *BC0 = Builder.CreateBitCast(Arg0, NewVecTy, "cast");
4557 Value *BC1 = Builder.CreateBitCast(Arg1, NewVecTy, "cast");
4558
4559 NewCall = Builder.CreateCall(NewFn, {BC0, BC1});
4560 break;
4561 }
4562
4563 case Intrinsic::x86_rdtscp: {
4564 // This used to take 1 arguments. If we have no arguments, it is already
4565 // upgraded.
4566 if (CI->getNumOperands() == 0)
4567 return;
4568
4569 NewCall = Builder.CreateCall(NewFn);
4570 // Extract the second result and store it.
4571 Value *Data = Builder.CreateExtractValue(NewCall, 1);
4572 // Cast the pointer to the right type.
4573 Value *Ptr = Builder.CreateBitCast(CI->getArgOperand(0),
4574 llvm::PointerType::getUnqual(Data->getType()));
4575 Builder.CreateAlignedStore(Data, Ptr, Align(1));
4576 // Replace the original call result with the first result of the new call.
4577 Value *TSC = Builder.CreateExtractValue(NewCall, 0);
4578
4579 NewCall->takeName(CI);
4580 CI->replaceAllUsesWith(TSC);
4581 CI->eraseFromParent();
4582 return;
4583 }
4584
4585 case Intrinsic::x86_sse41_insertps:
4586 case Intrinsic::x86_sse41_dppd:
4587 case Intrinsic::x86_sse41_dpps:
4588 case Intrinsic::x86_sse41_mpsadbw:
4589 case Intrinsic::x86_avx_dp_ps_256:
4590 case Intrinsic::x86_avx2_mpsadbw: {
4591 // Need to truncate the last argument from i32 to i8 -- this argument models
4592 // an inherently 8-bit immediate operand to these x86 instructions.
4593 SmallVector<Value *, 4> Args(CI->args());
4594
4595 // Replace the last argument with a trunc.
4596 Args.back() = Builder.CreateTrunc(Args.back(), Type::getInt8Ty(C), "trunc");
4597 NewCall = Builder.CreateCall(NewFn, Args);
4598 break;
4599 }
4600
4601 case Intrinsic::x86_avx512_mask_cmp_pd_128:
4602 case Intrinsic::x86_avx512_mask_cmp_pd_256:
4603 case Intrinsic::x86_avx512_mask_cmp_pd_512:
4604 case Intrinsic::x86_avx512_mask_cmp_ps_128:
4605 case Intrinsic::x86_avx512_mask_cmp_ps_256:
4606 case Intrinsic::x86_avx512_mask_cmp_ps_512: {
4607 SmallVector<Value *, 4> Args(CI->args());
4608 unsigned NumElts =
4609 cast<FixedVectorType>(Args[0]->getType())->getNumElements();
4610 Args[3] = getX86MaskVec(Builder, Args[3], NumElts);
4611
4612 NewCall = Builder.CreateCall(NewFn, Args);
4613 Value *Res = applyX86MaskOn1BitsVec(Builder, NewCall, nullptr);
4614
4615 NewCall->takeName(CI);
4616 CI->replaceAllUsesWith(Res);
4617 CI->eraseFromParent();
4618 return;
4619 }
4620
4621 case Intrinsic::x86_avx512bf16_cvtne2ps2bf16_128:
4622 case Intrinsic::x86_avx512bf16_cvtne2ps2bf16_256:
4623 case Intrinsic::x86_avx512bf16_cvtne2ps2bf16_512:
4624 case Intrinsic::x86_avx512bf16_mask_cvtneps2bf16_128:
4625 case Intrinsic::x86_avx512bf16_cvtneps2bf16_256:
4626 case Intrinsic::x86_avx512bf16_cvtneps2bf16_512: {
4627 SmallVector<Value *, 4> Args(CI->args());
4628 unsigned NumElts = cast<FixedVectorType>(CI->getType())->getNumElements();
4629 if (NewFn->getIntrinsicID() ==
4630 Intrinsic::x86_avx512bf16_mask_cvtneps2bf16_128)
4631 Args[1] = Builder.CreateBitCast(
4632 Args[1], FixedVectorType::get(Builder.getBFloatTy(), NumElts));
4633
4634 NewCall = Builder.CreateCall(NewFn, Args);
4635 Value *Res = Builder.CreateBitCast(
4636 NewCall, FixedVectorType::get(Builder.getInt16Ty(), NumElts));
4637
4638 NewCall->takeName(CI);
4639 CI->replaceAllUsesWith(Res);
4640 CI->eraseFromParent();
4641 return;
4642 }
4643 case Intrinsic::x86_avx512bf16_dpbf16ps_128:
4644 case Intrinsic::x86_avx512bf16_dpbf16ps_256:
4645 case Intrinsic::x86_avx512bf16_dpbf16ps_512:{
4646 SmallVector<Value *, 4> Args(CI->args());
4647 unsigned NumElts =
4648 cast<FixedVectorType>(CI->getType())->getNumElements() * 2;
4649 Args[1] = Builder.CreateBitCast(
4650 Args[1], FixedVectorType::get(Builder.getBFloatTy(), NumElts));
4651 Args[2] = Builder.CreateBitCast(
4652 Args[2], FixedVectorType::get(Builder.getBFloatTy(), NumElts));
4653
4654 NewCall = Builder.CreateCall(NewFn, Args);
4655 break;
4656 }
4657
4658 case Intrinsic::thread_pointer: {
4659 NewCall = Builder.CreateCall(NewFn, {});
4660 break;
4661 }
4662
4663 case Intrinsic::memcpy:
4664 case Intrinsic::memmove:
4665 case Intrinsic::memset: {
4666 // We have to make sure that the call signature is what we're expecting.
4667 // We only want to change the old signatures by removing the alignment arg:
4668 // @llvm.mem[cpy|move]...(i8*, i8*, i[32|i64], i32, i1)
4669 // -> @llvm.mem[cpy|move]...(i8*, i8*, i[32|i64], i1)
4670 // @llvm.memset...(i8*, i8, i[32|64], i32, i1)
4671 // -> @llvm.memset...(i8*, i8, i[32|64], i1)
4672 // Note: i8*'s in the above can be any pointer type
4673 if (CI->arg_size() != 5) {
4674 DefaultCase();
4675 return;
4676 }
4677 // Remove alignment argument (3), and add alignment attributes to the
4678 // dest/src pointers.
4679 Value *Args[4] = {CI->getArgOperand(0), CI->getArgOperand(1),
4680 CI->getArgOperand(2), CI->getArgOperand(4)};
4681 NewCall = Builder.CreateCall(NewFn, Args);
4682 AttributeList OldAttrs = CI->getAttributes();
4683 AttributeList NewAttrs = AttributeList::get(
4684 C, OldAttrs.getFnAttrs(), OldAttrs.getRetAttrs(),
4685 {OldAttrs.getParamAttrs(0), OldAttrs.getParamAttrs(1),
4686 OldAttrs.getParamAttrs(2), OldAttrs.getParamAttrs(4)});
4687 NewCall->setAttributes(NewAttrs);
4688 auto *MemCI = cast<MemIntrinsic>(NewCall);
4689 // All mem intrinsics support dest alignment.
4690 const ConstantInt *Align = cast<ConstantInt>(CI->getArgOperand(3));
4691 MemCI->setDestAlignment(Align->getMaybeAlignValue());
4692 // Memcpy/Memmove also support source alignment.
4693 if (auto *MTI = dyn_cast<MemTransferInst>(MemCI))
4694 MTI->setSourceAlignment(Align->getMaybeAlignValue());
4695 break;
4696 }
4697 }
4698 assert(NewCall && "Should have either set this variable or returned through "
4699 "the default case");
4700 NewCall->takeName(CI);
4701 CI->replaceAllUsesWith(NewCall);
4702 CI->eraseFromParent();
4703 }
4704
UpgradeCallsToIntrinsic(Function * F)4705 void llvm::UpgradeCallsToIntrinsic(Function *F) {
4706 assert(F && "Illegal attempt to upgrade a non-existent intrinsic.");
4707
4708 // Check if this function should be upgraded and get the replacement function
4709 // if there is one.
4710 Function *NewFn;
4711 if (UpgradeIntrinsicFunction(F, NewFn)) {
4712 // Replace all users of the old function with the new function or new
4713 // instructions. This is not a range loop because the call is deleted.
4714 for (User *U : make_early_inc_range(F->users()))
4715 if (CallBase *CB = dyn_cast<CallBase>(U))
4716 UpgradeIntrinsicCall(CB, NewFn);
4717
4718 // Remove old function, no longer used, from the module.
4719 F->eraseFromParent();
4720 }
4721 }
4722
UpgradeTBAANode(MDNode & MD)4723 MDNode *llvm::UpgradeTBAANode(MDNode &MD) {
4724 const unsigned NumOperands = MD.getNumOperands();
4725 if (NumOperands == 0)
4726 return &MD; // Invalid, punt to a verifier error.
4727
4728 // Check if the tag uses struct-path aware TBAA format.
4729 if (isa<MDNode>(MD.getOperand(0)) && NumOperands >= 3)
4730 return &MD;
4731
4732 auto &Context = MD.getContext();
4733 if (NumOperands == 3) {
4734 Metadata *Elts[] = {MD.getOperand(0), MD.getOperand(1)};
4735 MDNode *ScalarType = MDNode::get(Context, Elts);
4736 // Create a MDNode <ScalarType, ScalarType, offset 0, const>
4737 Metadata *Elts2[] = {ScalarType, ScalarType,
4738 ConstantAsMetadata::get(
4739 Constant::getNullValue(Type::getInt64Ty(Context))),
4740 MD.getOperand(2)};
4741 return MDNode::get(Context, Elts2);
4742 }
4743 // Create a MDNode <MD, MD, offset 0>
4744 Metadata *Elts[] = {&MD, &MD, ConstantAsMetadata::get(Constant::getNullValue(
4745 Type::getInt64Ty(Context)))};
4746 return MDNode::get(Context, Elts);
4747 }
4748
UpgradeBitCastInst(unsigned Opc,Value * V,Type * DestTy,Instruction * & Temp)4749 Instruction *llvm::UpgradeBitCastInst(unsigned Opc, Value *V, Type *DestTy,
4750 Instruction *&Temp) {
4751 if (Opc != Instruction::BitCast)
4752 return nullptr;
4753
4754 Temp = nullptr;
4755 Type *SrcTy = V->getType();
4756 if (SrcTy->isPtrOrPtrVectorTy() && DestTy->isPtrOrPtrVectorTy() &&
4757 SrcTy->getPointerAddressSpace() != DestTy->getPointerAddressSpace()) {
4758 LLVMContext &Context = V->getContext();
4759
4760 // We have no information about target data layout, so we assume that
4761 // the maximum pointer size is 64bit.
4762 Type *MidTy = Type::getInt64Ty(Context);
4763 Temp = CastInst::Create(Instruction::PtrToInt, V, MidTy);
4764
4765 return CastInst::Create(Instruction::IntToPtr, Temp, DestTy);
4766 }
4767
4768 return nullptr;
4769 }
4770
UpgradeBitCastExpr(unsigned Opc,Constant * C,Type * DestTy)4771 Constant *llvm::UpgradeBitCastExpr(unsigned Opc, Constant *C, Type *DestTy) {
4772 if (Opc != Instruction::BitCast)
4773 return nullptr;
4774
4775 Type *SrcTy = C->getType();
4776 if (SrcTy->isPtrOrPtrVectorTy() && DestTy->isPtrOrPtrVectorTy() &&
4777 SrcTy->getPointerAddressSpace() != DestTy->getPointerAddressSpace()) {
4778 LLVMContext &Context = C->getContext();
4779
4780 // We have no information about target data layout, so we assume that
4781 // the maximum pointer size is 64bit.
4782 Type *MidTy = Type::getInt64Ty(Context);
4783
4784 return ConstantExpr::getIntToPtr(ConstantExpr::getPtrToInt(C, MidTy),
4785 DestTy);
4786 }
4787
4788 return nullptr;
4789 }
4790
4791 /// Check the debug info version number, if it is out-dated, drop the debug
4792 /// info. Return true if module is modified.
UpgradeDebugInfo(Module & M)4793 bool llvm::UpgradeDebugInfo(Module &M) {
4794 if (DisableAutoUpgradeDebugInfo)
4795 return false;
4796
4797 unsigned Version = getDebugMetadataVersionFromModule(M);
4798 if (Version == DEBUG_METADATA_VERSION) {
4799 bool BrokenDebugInfo = false;
4800 if (verifyModule(M, &llvm::errs(), &BrokenDebugInfo))
4801 report_fatal_error("Broken module found, compilation aborted!");
4802 if (!BrokenDebugInfo)
4803 // Everything is ok.
4804 return false;
4805 else {
4806 // Diagnose malformed debug info.
4807 DiagnosticInfoIgnoringInvalidDebugMetadata Diag(M);
4808 M.getContext().diagnose(Diag);
4809 }
4810 }
4811 bool Modified = StripDebugInfo(M);
4812 if (Modified && Version != DEBUG_METADATA_VERSION) {
4813 // Diagnose a version mismatch.
4814 DiagnosticInfoDebugMetadataVersion DiagVersion(M, Version);
4815 M.getContext().diagnose(DiagVersion);
4816 }
4817 return Modified;
4818 }
4819
4820 /// This checks for objc retain release marker which should be upgraded. It
4821 /// returns true if module is modified.
upgradeRetainReleaseMarker(Module & M)4822 static bool upgradeRetainReleaseMarker(Module &M) {
4823 bool Changed = false;
4824 const char *MarkerKey = "clang.arc.retainAutoreleasedReturnValueMarker";
4825 NamedMDNode *ModRetainReleaseMarker = M.getNamedMetadata(MarkerKey);
4826 if (ModRetainReleaseMarker) {
4827 MDNode *Op = ModRetainReleaseMarker->getOperand(0);
4828 if (Op) {
4829 MDString *ID = dyn_cast_or_null<MDString>(Op->getOperand(0));
4830 if (ID) {
4831 SmallVector<StringRef, 4> ValueComp;
4832 ID->getString().split(ValueComp, "#");
4833 if (ValueComp.size() == 2) {
4834 std::string NewValue = ValueComp[0].str() + ";" + ValueComp[1].str();
4835 ID = MDString::get(M.getContext(), NewValue);
4836 }
4837 M.addModuleFlag(Module::Error, MarkerKey, ID);
4838 M.eraseNamedMetadata(ModRetainReleaseMarker);
4839 Changed = true;
4840 }
4841 }
4842 }
4843 return Changed;
4844 }
4845
UpgradeARCRuntime(Module & M)4846 void llvm::UpgradeARCRuntime(Module &M) {
4847 // This lambda converts normal function calls to ARC runtime functions to
4848 // intrinsic calls.
4849 auto UpgradeToIntrinsic = [&](const char *OldFunc,
4850 llvm::Intrinsic::ID IntrinsicFunc) {
4851 Function *Fn = M.getFunction(OldFunc);
4852
4853 if (!Fn)
4854 return;
4855
4856 Function *NewFn = llvm::Intrinsic::getDeclaration(&M, IntrinsicFunc);
4857
4858 for (User *U : make_early_inc_range(Fn->users())) {
4859 CallInst *CI = dyn_cast<CallInst>(U);
4860 if (!CI || CI->getCalledFunction() != Fn)
4861 continue;
4862
4863 IRBuilder<> Builder(CI->getParent(), CI->getIterator());
4864 FunctionType *NewFuncTy = NewFn->getFunctionType();
4865 SmallVector<Value *, 2> Args;
4866
4867 // Don't upgrade the intrinsic if it's not valid to bitcast the return
4868 // value to the return type of the old function.
4869 if (NewFuncTy->getReturnType() != CI->getType() &&
4870 !CastInst::castIsValid(Instruction::BitCast, CI,
4871 NewFuncTy->getReturnType()))
4872 continue;
4873
4874 bool InvalidCast = false;
4875
4876 for (unsigned I = 0, E = CI->arg_size(); I != E; ++I) {
4877 Value *Arg = CI->getArgOperand(I);
4878
4879 // Bitcast argument to the parameter type of the new function if it's
4880 // not a variadic argument.
4881 if (I < NewFuncTy->getNumParams()) {
4882 // Don't upgrade the intrinsic if it's not valid to bitcast the argument
4883 // to the parameter type of the new function.
4884 if (!CastInst::castIsValid(Instruction::BitCast, Arg,
4885 NewFuncTy->getParamType(I))) {
4886 InvalidCast = true;
4887 break;
4888 }
4889 Arg = Builder.CreateBitCast(Arg, NewFuncTy->getParamType(I));
4890 }
4891 Args.push_back(Arg);
4892 }
4893
4894 if (InvalidCast)
4895 continue;
4896
4897 // Create a call instruction that calls the new function.
4898 CallInst *NewCall = Builder.CreateCall(NewFuncTy, NewFn, Args);
4899 NewCall->setTailCallKind(cast<CallInst>(CI)->getTailCallKind());
4900 NewCall->takeName(CI);
4901
4902 // Bitcast the return value back to the type of the old call.
4903 Value *NewRetVal = Builder.CreateBitCast(NewCall, CI->getType());
4904
4905 if (!CI->use_empty())
4906 CI->replaceAllUsesWith(NewRetVal);
4907 CI->eraseFromParent();
4908 }
4909
4910 if (Fn->use_empty())
4911 Fn->eraseFromParent();
4912 };
4913
4914 // Unconditionally convert a call to "clang.arc.use" to a call to
4915 // "llvm.objc.clang.arc.use".
4916 UpgradeToIntrinsic("clang.arc.use", llvm::Intrinsic::objc_clang_arc_use);
4917
4918 // Upgrade the retain release marker. If there is no need to upgrade
4919 // the marker, that means either the module is already new enough to contain
4920 // new intrinsics or it is not ARC. There is no need to upgrade runtime call.
4921 if (!upgradeRetainReleaseMarker(M))
4922 return;
4923
4924 std::pair<const char *, llvm::Intrinsic::ID> RuntimeFuncs[] = {
4925 {"objc_autorelease", llvm::Intrinsic::objc_autorelease},
4926 {"objc_autoreleasePoolPop", llvm::Intrinsic::objc_autoreleasePoolPop},
4927 {"objc_autoreleasePoolPush", llvm::Intrinsic::objc_autoreleasePoolPush},
4928 {"objc_autoreleaseReturnValue",
4929 llvm::Intrinsic::objc_autoreleaseReturnValue},
4930 {"objc_copyWeak", llvm::Intrinsic::objc_copyWeak},
4931 {"objc_destroyWeak", llvm::Intrinsic::objc_destroyWeak},
4932 {"objc_initWeak", llvm::Intrinsic::objc_initWeak},
4933 {"objc_loadWeak", llvm::Intrinsic::objc_loadWeak},
4934 {"objc_loadWeakRetained", llvm::Intrinsic::objc_loadWeakRetained},
4935 {"objc_moveWeak", llvm::Intrinsic::objc_moveWeak},
4936 {"objc_release", llvm::Intrinsic::objc_release},
4937 {"objc_retain", llvm::Intrinsic::objc_retain},
4938 {"objc_retainAutorelease", llvm::Intrinsic::objc_retainAutorelease},
4939 {"objc_retainAutoreleaseReturnValue",
4940 llvm::Intrinsic::objc_retainAutoreleaseReturnValue},
4941 {"objc_retainAutoreleasedReturnValue",
4942 llvm::Intrinsic::objc_retainAutoreleasedReturnValue},
4943 {"objc_retainBlock", llvm::Intrinsic::objc_retainBlock},
4944 {"objc_storeStrong", llvm::Intrinsic::objc_storeStrong},
4945 {"objc_storeWeak", llvm::Intrinsic::objc_storeWeak},
4946 {"objc_unsafeClaimAutoreleasedReturnValue",
4947 llvm::Intrinsic::objc_unsafeClaimAutoreleasedReturnValue},
4948 {"objc_retainedObject", llvm::Intrinsic::objc_retainedObject},
4949 {"objc_unretainedObject", llvm::Intrinsic::objc_unretainedObject},
4950 {"objc_unretainedPointer", llvm::Intrinsic::objc_unretainedPointer},
4951 {"objc_retain_autorelease", llvm::Intrinsic::objc_retain_autorelease},
4952 {"objc_sync_enter", llvm::Intrinsic::objc_sync_enter},
4953 {"objc_sync_exit", llvm::Intrinsic::objc_sync_exit},
4954 {"objc_arc_annotation_topdown_bbstart",
4955 llvm::Intrinsic::objc_arc_annotation_topdown_bbstart},
4956 {"objc_arc_annotation_topdown_bbend",
4957 llvm::Intrinsic::objc_arc_annotation_topdown_bbend},
4958 {"objc_arc_annotation_bottomup_bbstart",
4959 llvm::Intrinsic::objc_arc_annotation_bottomup_bbstart},
4960 {"objc_arc_annotation_bottomup_bbend",
4961 llvm::Intrinsic::objc_arc_annotation_bottomup_bbend}};
4962
4963 for (auto &I : RuntimeFuncs)
4964 UpgradeToIntrinsic(I.first, I.second);
4965 }
4966
UpgradeModuleFlags(Module & M)4967 bool llvm::UpgradeModuleFlags(Module &M) {
4968 NamedMDNode *ModFlags = M.getModuleFlagsMetadata();
4969 if (!ModFlags)
4970 return false;
4971
4972 bool HasObjCFlag = false, HasClassProperties = false, Changed = false;
4973 bool HasSwiftVersionFlag = false;
4974 uint8_t SwiftMajorVersion, SwiftMinorVersion;
4975 uint32_t SwiftABIVersion;
4976 auto Int8Ty = Type::getInt8Ty(M.getContext());
4977 auto Int32Ty = Type::getInt32Ty(M.getContext());
4978
4979 for (unsigned I = 0, E = ModFlags->getNumOperands(); I != E; ++I) {
4980 MDNode *Op = ModFlags->getOperand(I);
4981 if (Op->getNumOperands() != 3)
4982 continue;
4983 MDString *ID = dyn_cast_or_null<MDString>(Op->getOperand(1));
4984 if (!ID)
4985 continue;
4986 auto SetBehavior = [&](Module::ModFlagBehavior B) {
4987 Metadata *Ops[3] = {ConstantAsMetadata::get(ConstantInt::get(
4988 Type::getInt32Ty(M.getContext()), B)),
4989 MDString::get(M.getContext(), ID->getString()),
4990 Op->getOperand(2)};
4991 ModFlags->setOperand(I, MDNode::get(M.getContext(), Ops));
4992 Changed = true;
4993 };
4994
4995 if (ID->getString() == "Objective-C Image Info Version")
4996 HasObjCFlag = true;
4997 if (ID->getString() == "Objective-C Class Properties")
4998 HasClassProperties = true;
4999 // Upgrade PIC from Error/Max to Min.
5000 if (ID->getString() == "PIC Level") {
5001 if (auto *Behavior =
5002 mdconst::dyn_extract_or_null<ConstantInt>(Op->getOperand(0))) {
5003 uint64_t V = Behavior->getLimitedValue();
5004 if (V == Module::Error || V == Module::Max)
5005 SetBehavior(Module::Min);
5006 }
5007 }
5008 // Upgrade "PIE Level" from Error to Max.
5009 if (ID->getString() == "PIE Level")
5010 if (auto *Behavior =
5011 mdconst::dyn_extract_or_null<ConstantInt>(Op->getOperand(0)))
5012 if (Behavior->getLimitedValue() == Module::Error)
5013 SetBehavior(Module::Max);
5014
5015 // Upgrade branch protection and return address signing module flags. The
5016 // module flag behavior for these fields were Error and now they are Min.
5017 if (ID->getString() == "branch-target-enforcement" ||
5018 ID->getString().starts_with("sign-return-address")) {
5019 if (auto *Behavior =
5020 mdconst::dyn_extract_or_null<ConstantInt>(Op->getOperand(0))) {
5021 if (Behavior->getLimitedValue() == Module::Error) {
5022 Type *Int32Ty = Type::getInt32Ty(M.getContext());
5023 Metadata *Ops[3] = {
5024 ConstantAsMetadata::get(ConstantInt::get(Int32Ty, Module::Min)),
5025 Op->getOperand(1), Op->getOperand(2)};
5026 ModFlags->setOperand(I, MDNode::get(M.getContext(), Ops));
5027 Changed = true;
5028 }
5029 }
5030 }
5031
5032 // Upgrade Objective-C Image Info Section. Removed the whitespce in the
5033 // section name so that llvm-lto will not complain about mismatching
5034 // module flags that is functionally the same.
5035 if (ID->getString() == "Objective-C Image Info Section") {
5036 if (auto *Value = dyn_cast_or_null<MDString>(Op->getOperand(2))) {
5037 SmallVector<StringRef, 4> ValueComp;
5038 Value->getString().split(ValueComp, " ");
5039 if (ValueComp.size() != 1) {
5040 std::string NewValue;
5041 for (auto &S : ValueComp)
5042 NewValue += S.str();
5043 Metadata *Ops[3] = {Op->getOperand(0), Op->getOperand(1),
5044 MDString::get(M.getContext(), NewValue)};
5045 ModFlags->setOperand(I, MDNode::get(M.getContext(), Ops));
5046 Changed = true;
5047 }
5048 }
5049 }
5050
5051 // IRUpgrader turns a i32 type "Objective-C Garbage Collection" into i8 value.
5052 // If the higher bits are set, it adds new module flag for swift info.
5053 if (ID->getString() == "Objective-C Garbage Collection") {
5054 auto Md = dyn_cast<ConstantAsMetadata>(Op->getOperand(2));
5055 if (Md) {
5056 assert(Md->getValue() && "Expected non-empty metadata");
5057 auto Type = Md->getValue()->getType();
5058 if (Type == Int8Ty)
5059 continue;
5060 unsigned Val = Md->getValue()->getUniqueInteger().getZExtValue();
5061 if ((Val & 0xff) != Val) {
5062 HasSwiftVersionFlag = true;
5063 SwiftABIVersion = (Val & 0xff00) >> 8;
5064 SwiftMajorVersion = (Val & 0xff000000) >> 24;
5065 SwiftMinorVersion = (Val & 0xff0000) >> 16;
5066 }
5067 Metadata *Ops[3] = {
5068 ConstantAsMetadata::get(ConstantInt::get(Int32Ty,Module::Error)),
5069 Op->getOperand(1),
5070 ConstantAsMetadata::get(ConstantInt::get(Int8Ty,Val & 0xff))};
5071 ModFlags->setOperand(I, MDNode::get(M.getContext(), Ops));
5072 Changed = true;
5073 }
5074 }
5075 }
5076
5077 // "Objective-C Class Properties" is recently added for Objective-C. We
5078 // upgrade ObjC bitcodes to contain a "Objective-C Class Properties" module
5079 // flag of value 0, so we can correclty downgrade this flag when trying to
5080 // link an ObjC bitcode without this module flag with an ObjC bitcode with
5081 // this module flag.
5082 if (HasObjCFlag && !HasClassProperties) {
5083 M.addModuleFlag(llvm::Module::Override, "Objective-C Class Properties",
5084 (uint32_t)0);
5085 Changed = true;
5086 }
5087
5088 if (HasSwiftVersionFlag) {
5089 M.addModuleFlag(Module::Error, "Swift ABI Version",
5090 SwiftABIVersion);
5091 M.addModuleFlag(Module::Error, "Swift Major Version",
5092 ConstantInt::get(Int8Ty, SwiftMajorVersion));
5093 M.addModuleFlag(Module::Error, "Swift Minor Version",
5094 ConstantInt::get(Int8Ty, SwiftMinorVersion));
5095 Changed = true;
5096 }
5097
5098 return Changed;
5099 }
5100
UpgradeSectionAttributes(Module & M)5101 void llvm::UpgradeSectionAttributes(Module &M) {
5102 auto TrimSpaces = [](StringRef Section) -> std::string {
5103 SmallVector<StringRef, 5> Components;
5104 Section.split(Components, ',');
5105
5106 SmallString<32> Buffer;
5107 raw_svector_ostream OS(Buffer);
5108
5109 for (auto Component : Components)
5110 OS << ',' << Component.trim();
5111
5112 return std::string(OS.str().substr(1));
5113 };
5114
5115 for (auto &GV : M.globals()) {
5116 if (!GV.hasSection())
5117 continue;
5118
5119 StringRef Section = GV.getSection();
5120
5121 if (!Section.starts_with("__DATA, __objc_catlist"))
5122 continue;
5123
5124 // __DATA, __objc_catlist, regular, no_dead_strip
5125 // __DATA,__objc_catlist,regular,no_dead_strip
5126 GV.setSection(TrimSpaces(Section));
5127 }
5128 }
5129
5130 namespace {
5131 // Prior to LLVM 10.0, the strictfp attribute could be used on individual
5132 // callsites within a function that did not also have the strictfp attribute.
5133 // Since 10.0, if strict FP semantics are needed within a function, the
5134 // function must have the strictfp attribute and all calls within the function
5135 // must also have the strictfp attribute. This latter restriction is
5136 // necessary to prevent unwanted libcall simplification when a function is
5137 // being cloned (such as for inlining).
5138 //
5139 // The "dangling" strictfp attribute usage was only used to prevent constant
5140 // folding and other libcall simplification. The nobuiltin attribute on the
5141 // callsite has the same effect.
5142 struct StrictFPUpgradeVisitor : public InstVisitor<StrictFPUpgradeVisitor> {
5143 StrictFPUpgradeVisitor() = default;
5144
visitCallBase__anon68d474a30511::StrictFPUpgradeVisitor5145 void visitCallBase(CallBase &Call) {
5146 if (!Call.isStrictFP())
5147 return;
5148 if (isa<ConstrainedFPIntrinsic>(&Call))
5149 return;
5150 // If we get here, the caller doesn't have the strictfp attribute
5151 // but this callsite does. Replace the strictfp attribute with nobuiltin.
5152 Call.removeFnAttr(Attribute::StrictFP);
5153 Call.addFnAttr(Attribute::NoBuiltin);
5154 }
5155 };
5156 } // namespace
5157
UpgradeFunctionAttributes(Function & F)5158 void llvm::UpgradeFunctionAttributes(Function &F) {
5159 // If a function definition doesn't have the strictfp attribute,
5160 // convert any callsite strictfp attributes to nobuiltin.
5161 if (!F.isDeclaration() && !F.hasFnAttribute(Attribute::StrictFP)) {
5162 StrictFPUpgradeVisitor SFPV;
5163 SFPV.visit(F);
5164 }
5165
5166 // Remove all incompatibile attributes from function.
5167 F.removeRetAttrs(AttributeFuncs::typeIncompatible(F.getReturnType()));
5168 for (auto &Arg : F.args())
5169 Arg.removeAttrs(AttributeFuncs::typeIncompatible(Arg.getType()));
5170 }
5171
isOldLoopArgument(Metadata * MD)5172 static bool isOldLoopArgument(Metadata *MD) {
5173 auto *T = dyn_cast_or_null<MDTuple>(MD);
5174 if (!T)
5175 return false;
5176 if (T->getNumOperands() < 1)
5177 return false;
5178 auto *S = dyn_cast_or_null<MDString>(T->getOperand(0));
5179 if (!S)
5180 return false;
5181 return S->getString().starts_with("llvm.vectorizer.");
5182 }
5183
upgradeLoopTag(LLVMContext & C,StringRef OldTag)5184 static MDString *upgradeLoopTag(LLVMContext &C, StringRef OldTag) {
5185 StringRef OldPrefix = "llvm.vectorizer.";
5186 assert(OldTag.starts_with(OldPrefix) && "Expected old prefix");
5187
5188 if (OldTag == "llvm.vectorizer.unroll")
5189 return MDString::get(C, "llvm.loop.interleave.count");
5190
5191 return MDString::get(
5192 C, (Twine("llvm.loop.vectorize.") + OldTag.drop_front(OldPrefix.size()))
5193 .str());
5194 }
5195
upgradeLoopArgument(Metadata * MD)5196 static Metadata *upgradeLoopArgument(Metadata *MD) {
5197 auto *T = dyn_cast_or_null<MDTuple>(MD);
5198 if (!T)
5199 return MD;
5200 if (T->getNumOperands() < 1)
5201 return MD;
5202 auto *OldTag = dyn_cast_or_null<MDString>(T->getOperand(0));
5203 if (!OldTag)
5204 return MD;
5205 if (!OldTag->getString().starts_with("llvm.vectorizer."))
5206 return MD;
5207
5208 // This has an old tag. Upgrade it.
5209 SmallVector<Metadata *, 8> Ops;
5210 Ops.reserve(T->getNumOperands());
5211 Ops.push_back(upgradeLoopTag(T->getContext(), OldTag->getString()));
5212 for (unsigned I = 1, E = T->getNumOperands(); I != E; ++I)
5213 Ops.push_back(T->getOperand(I));
5214
5215 return MDTuple::get(T->getContext(), Ops);
5216 }
5217
upgradeInstructionLoopAttachment(MDNode & N)5218 MDNode *llvm::upgradeInstructionLoopAttachment(MDNode &N) {
5219 auto *T = dyn_cast<MDTuple>(&N);
5220 if (!T)
5221 return &N;
5222
5223 if (none_of(T->operands(), isOldLoopArgument))
5224 return &N;
5225
5226 SmallVector<Metadata *, 8> Ops;
5227 Ops.reserve(T->getNumOperands());
5228 for (Metadata *MD : T->operands())
5229 Ops.push_back(upgradeLoopArgument(MD));
5230
5231 return MDTuple::get(T->getContext(), Ops);
5232 }
5233
UpgradeDataLayoutString(StringRef DL,StringRef TT)5234 std::string llvm::UpgradeDataLayoutString(StringRef DL, StringRef TT) {
5235 Triple T(TT);
5236 // The only data layout upgrades needed for pre-GCN are setting the address
5237 // space of globals to 1.
5238 if (T.isAMDGPU() && !T.isAMDGCN() && !DL.contains("-G") &&
5239 !DL.starts_with("G")) {
5240 return DL.empty() ? std::string("G1") : (DL + "-G1").str();
5241 }
5242
5243 if (T.isRISCV64()) {
5244 // Make i32 a native type for 64-bit RISC-V.
5245 auto I = DL.find("-n64-");
5246 if (I != StringRef::npos)
5247 return (DL.take_front(I) + "-n32:64-" + DL.drop_front(I + 5)).str();
5248 return DL.str();
5249 }
5250
5251 std::string Res = DL.str();
5252 // AMDGCN data layout upgrades.
5253 if (T.isAMDGCN()) {
5254 // Define address spaces for constants.
5255 if (!DL.contains("-G") && !DL.starts_with("G"))
5256 Res.append(Res.empty() ? "G1" : "-G1");
5257
5258 // Add missing non-integral declarations.
5259 // This goes before adding new address spaces to prevent incoherent string
5260 // values.
5261 if (!DL.contains("-ni") && !DL.starts_with("ni"))
5262 Res.append("-ni:7:8:9");
5263 // Update ni:7 to ni:7:8:9.
5264 if (DL.ends_with("ni:7"))
5265 Res.append(":8:9");
5266 if (DL.ends_with("ni:7:8"))
5267 Res.append(":9");
5268
5269 // Add sizing for address spaces 7 and 8 (fat raw buffers and buffer
5270 // resources) An empty data layout has already been upgraded to G1 by now.
5271 if (!DL.contains("-p7") && !DL.starts_with("p7"))
5272 Res.append("-p7:160:256:256:32");
5273 if (!DL.contains("-p8") && !DL.starts_with("p8"))
5274 Res.append("-p8:128:128");
5275 if (!DL.contains("-p9") && !DL.starts_with("p9"))
5276 Res.append("-p9:192:256:256:32");
5277
5278 return Res;
5279 }
5280
5281 if (!T.isX86())
5282 return Res;
5283
5284 // If the datalayout matches the expected format, add pointer size address
5285 // spaces to the datalayout.
5286 std::string AddrSpaces = "-p270:32:32-p271:32:32-p272:64:64";
5287 if (StringRef Ref = Res; !Ref.contains(AddrSpaces)) {
5288 SmallVector<StringRef, 4> Groups;
5289 Regex R("(e-m:[a-z](-p:32:32)?)(-[if]64:.*$)");
5290 if (R.match(Res, &Groups))
5291 Res = (Groups[1] + AddrSpaces + Groups[3]).str();
5292 }
5293
5294 // i128 values need to be 16-byte-aligned. LLVM already called into libgcc
5295 // for i128 operations prior to this being reflected in the data layout, and
5296 // clang mostly produced LLVM IR that already aligned i128 to 16 byte
5297 // boundaries, so although this is a breaking change, the upgrade is expected
5298 // to fix more IR than it breaks.
5299 // Intel MCU is an exception and uses 4-byte-alignment.
5300 if (!T.isOSIAMCU()) {
5301 std::string I128 = "-i128:128";
5302 if (StringRef Ref = Res; !Ref.contains(I128)) {
5303 SmallVector<StringRef, 4> Groups;
5304 Regex R("^(e(-[mpi][^-]*)*)((-[^mpi][^-]*)*)$");
5305 if (R.match(Res, &Groups))
5306 Res = (Groups[1] + I128 + Groups[3]).str();
5307 }
5308 }
5309
5310 // For 32-bit MSVC targets, raise the alignment of f80 values to 16 bytes.
5311 // Raising the alignment is safe because Clang did not produce f80 values in
5312 // the MSVC environment before this upgrade was added.
5313 if (T.isWindowsMSVCEnvironment() && !T.isArch64Bit()) {
5314 StringRef Ref = Res;
5315 auto I = Ref.find("-f80:32-");
5316 if (I != StringRef::npos)
5317 Res = (Ref.take_front(I) + "-f80:128-" + Ref.drop_front(I + 8)).str();
5318 }
5319
5320 return Res;
5321 }
5322
UpgradeAttributes(AttrBuilder & B)5323 void llvm::UpgradeAttributes(AttrBuilder &B) {
5324 StringRef FramePointer;
5325 Attribute A = B.getAttribute("no-frame-pointer-elim");
5326 if (A.isValid()) {
5327 // The value can be "true" or "false".
5328 FramePointer = A.getValueAsString() == "true" ? "all" : "none";
5329 B.removeAttribute("no-frame-pointer-elim");
5330 }
5331 if (B.contains("no-frame-pointer-elim-non-leaf")) {
5332 // The value is ignored. "no-frame-pointer-elim"="true" takes priority.
5333 if (FramePointer != "all")
5334 FramePointer = "non-leaf";
5335 B.removeAttribute("no-frame-pointer-elim-non-leaf");
5336 }
5337 if (!FramePointer.empty())
5338 B.addAttribute("frame-pointer", FramePointer);
5339
5340 A = B.getAttribute("null-pointer-is-valid");
5341 if (A.isValid()) {
5342 // The value can be "true" or "false".
5343 bool NullPointerIsValid = A.getValueAsString() == "true";
5344 B.removeAttribute("null-pointer-is-valid");
5345 if (NullPointerIsValid)
5346 B.addAttribute(Attribute::NullPointerIsValid);
5347 }
5348 }
5349
UpgradeOperandBundles(std::vector<OperandBundleDef> & Bundles)5350 void llvm::UpgradeOperandBundles(std::vector<OperandBundleDef> &Bundles) {
5351 // clang.arc.attachedcall bundles are now required to have an operand.
5352 // If they don't, it's okay to drop them entirely: when there is an operand,
5353 // the "attachedcall" is meaningful and required, but without an operand,
5354 // it's just a marker NOP. Dropping it merely prevents an optimization.
5355 erase_if(Bundles, [&](OperandBundleDef &OBD) {
5356 return OBD.getTag() == "clang.arc.attachedcall" &&
5357 OBD.inputs().empty();
5358 });
5359 }
5360