1 // Copyright 2014 the V8 project authors. All rights reserved.
2 // Redistribution and use in source and binary forms, with or without
3 // modification, are permitted provided that the following conditions are
4 // met:
5 //
6 // * Redistributions of source code must retain the above copyright
7 // notice, this list of conditions and the following disclaimer.
8 // * Redistributions in binary form must reproduce the above
9 // copyright notice, this list of conditions and the following
10 // disclaimer in the documentation and/or other materials provided
11 // with the distribution.
12 // * Neither the name of Google Inc. nor the names of its
13 // contributors may be used to endorse or promote products derived
14 // from this software without specific prior written permission.
15 //
16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 //
28
29 #include <stdlib.h>
30
31 #include "src/init/v8.h"
32
33 #include "src/codegen/macro-assembler.h"
34 #include "src/debug/debug.h"
35 #include "src/diagnostics/disasm.h"
36 #include "src/diagnostics/disassembler.h"
37 #include "src/execution/frames-inl.h"
38 #include "test/cctest/cctest.h"
39
40 namespace v8 {
41 namespace internal {
42
DisassembleAndCompare(byte * pc,const char * compare_string)43 bool DisassembleAndCompare(byte* pc, const char* compare_string) {
44 disasm::NameConverter converter;
45 disasm::Disassembler disasm(converter);
46 base::EmbeddedVector<char, 128> disasm_buffer;
47
48 disasm.InstructionDecode(disasm_buffer, pc);
49
50 if (strcmp(compare_string, disasm_buffer.begin()) != 0) {
51 fprintf(stderr,
52 "expected: \n"
53 "%s\n"
54 "disassembled: \n"
55 "%s\n\n",
56 compare_string, disasm_buffer.begin());
57 return false;
58 }
59 return true;
60 }
61
62 // Set up V8 to a state where we can at least run the assembler and
63 // disassembler. Declare the variables and allocate the data structures used
64 // in the rest of the macros.
65 #define SET_UP() \
66 CcTest::InitializeVM(); \
67 Isolate* isolate = CcTest::i_isolate(); \
68 HandleScope scope(isolate); \
69 byte* buffer = reinterpret_cast<byte*>(malloc(4 * 1024)); \
70 Assembler assm(AssemblerOptions{}, \
71 ExternalAssemblerBuffer(buffer, 4 * 1024)); \
72 bool failure = false;
73
74 // This macro assembles one instruction using the preallocated assembler and
75 // disassembles the generated instruction, comparing the output to the expected
76 // value. If the comparison fails an error message is printed, but the test
77 // continues to run until the end.
78 #define COMPARE(asm_, compare_string) \
79 { \
80 int pc_offset = assm.pc_offset(); \
81 byte* progcounter = &buffer[pc_offset]; \
82 assm.asm_; \
83 if (!DisassembleAndCompare(progcounter, compare_string)) failure = true; \
84 }
85
86 // Force emission of any pending literals into a pool.
87 #define EMIT_PENDING_LITERALS() assm.CheckConstPool(true, false)
88
89 // Verify that all invocations of the COMPARE macro passed successfully.
90 // Exit with a failure if at least one of the tests failed.
91 #define VERIFY_RUN() \
92 if (failure) { \
93 FATAL("S390 Disassembler tests failed.\n"); \
94 }
95
TEST(TwoBytes)96 TEST(TwoBytes) {
97 SET_UP();
98
99 COMPARE(ar(r3, r10), "1a3a ar\tr3,r10");
100 COMPARE(sr(r8, ip), "1b8c sr\tr8,ip");
101 COMPARE(mr_z(r0, r6), "1c06 mr\tr0,r6");
102 COMPARE(dr(r0, r5), "1d05 dr\tr0,r5");
103 COMPARE(or_z(r4, r2), "1642 or\tr4,r2");
104 COMPARE(nr(fp, r9), "14b9 nr\tfp,r9");
105 COMPARE(xr(r10, ip), "17ac xr\tr10,ip");
106 COMPARE(lr(r2, r13), "182d lr\tr2,r13");
107 COMPARE(cr_z(r9, r3), "1993 cr\tr9,r3");
108 COMPARE(clr(sp, r4), "15f4 clr\tsp,r4");
109 COMPARE(bcr(eq, r8), "0788 bcr\t0x8,r8");
110 COMPARE(ltr(r10, r1), "12a1 ltr\tr10,r1");
111 COMPARE(alr(r6, r8), "1e68 alr\tr6,r8");
112 COMPARE(slr(r3, ip), "1f3c slr\tr3,ip");
113 COMPARE(lnr(r4, r1), "1141 lnr\tr4,r1");
114 COMPARE(lcr(r0, r3), "1303 lcr\tr0,r3");
115 COMPARE(basr(r14, r7), "0de7 basr\tr14,r7");
116 COMPARE(ldr(d4, d6), "2846 ldr\td4,d6");
117
118 VERIFY_RUN();
119 }
120
TEST(FourBytes)121 TEST(FourBytes) {
122 SET_UP();
123
124 #if V8_TARGET_ARCH_S390X
125 COMPARE(aghi(r5, Operand(1)), "a75b0001 aghi\tr5,1");
126 COMPARE(lghi(r6, Operand(8)), "a7690008 lghi\tr6,8");
127 COMPARE(mghi(r1, Operand(2)), "a71d0002 mghi\tr1,2");
128 COMPARE(cghi(r3, Operand(7)), "a73f0007 cghi\tr3,7");
129 #else
130 COMPARE(ahi(r3, Operand(9)), "a73a0009 ahi\tr3,9");
131 COMPARE(lhi(r7, Operand::Zero()), "a7780000 lhi\tr7,0");
132 COMPARE(mhi(r8, Operand(3)), "a78c0003 mhi\tr8,3");
133 COMPARE(chi(r4, Operand(5)), "a74e0005 chi\tr4,5");
134 COMPARE(a(r13, MemOperand(r8, 70)), "5ad08046 a\tr13,70(r8)");
135 COMPARE(s(r9, MemOperand(sp, 9)), "5b90f009 s\tr9,9(sp)");
136 COMPARE(m(r6, MemOperand(r7, ip, 20)), "5c67c014 m\tr6,20(r7,ip)");
137 COMPARE(d(r14, MemOperand(r7, 15)), "5de0700f d\tr14,15(r7)");
138 COMPARE(o(r7, MemOperand(r3, r2, 10)), "5673200a o\tr7,10(r3,r2)");
139 COMPARE(n(r9, MemOperand(r5, sp, 9)), "5495f009 n\tr9,9(r5,sp)");
140 COMPARE(l(r0, MemOperand(r4, fp, 1)), "5804b001 l\tr0,1(r4,fp)");
141 COMPARE(c(r8, MemOperand(r5, r7, 18)), "59857012 c\tr8,18(r5,r7)");
142 COMPARE(al_z(r6, MemOperand(r9, sp, 2000)),
143 "5e69f7d0 al\tr6,2000(r9,sp)");
144 COMPARE(sl(r8, MemOperand(r1, 100)), "5f801064 sl\tr8,100(r1)");
145 COMPARE(la(r5, MemOperand(r9, 9)), "41509009 la\tr5,9(r9)");
146 COMPARE(ch(r0, MemOperand(r3, 0)), "49003000 ch\tr0,0(r3)");
147 COMPARE(cl(r1, MemOperand(r8, 5)), "55108005 cl\tr1,5(r8)");
148 COMPARE(cli(MemOperand(r9, 64), Operand(5)), "95059040 cli\t64(r9),5");
149 COMPARE(tm(MemOperand(r0, 8), Operand(7)), "91070008 tm\t8(r0),7");
150 COMPARE(bct(r1, MemOperand(r9, 15)), "4610900f bct\tr1,15(r9)");
151 COMPARE(st(r5, MemOperand(r9, r8, 7)), "50598007 st\tr5,7(r9,r8)");
152 COMPARE(stc(r13, MemOperand(r5, r1, 8)), "42d51008 stc\tr13,8(r5,r1)");
153 COMPARE(ic_z(r9, MemOperand(r1, 90)), "4390105a ic\tr9,90(r1)");
154 COMPARE(sth(r5, MemOperand(r9, r0, 87)), "40590057 sth\tr5,87(r9,r0)");
155 #endif
156 COMPARE(iihh(r10, Operand(8)), "a5a00008 iihh\tr10,8");
157 COMPARE(iihl(r9, Operand(10)), "a591000a iihl\tr9,10");
158 COMPARE(iilh(r0, Operand(40)), "a5020028 iilh\tr0,40");
159 COMPARE(iill(r6, Operand(19)), "a5630013 iill\tr6,19");
160 COMPARE(oill(r9, Operand(9)), "a59b0009 oill\tr9,9");
161 COMPARE(tmll(r4, Operand(7)), "a7410007 tmll\tr4,7");
162 COMPARE(stm(r2, r5, MemOperand(r9, 44)), "9025902c stm\tr2,r5,44(r9)");
163 COMPARE(lm(r8, r0, MemOperand(sp, 88)), "9880f058 lm\tr8,r0,88(sp)");
164 COMPARE(nill(r7, Operand(30)), "a577001e nill\tr7,30");
165 COMPARE(nilh(r8, Operand(4)), "a5860004 nilh\tr8,4");
166 COMPARE(ah(r9, MemOperand(r5, r4, 4)), "4a954004 ah\tr9,4(r5,r4)");
167 COMPARE(sh(r8, MemOperand(r1, r2, 6)), "4b812006 sh\tr8,6(r1,r2)");
168 COMPARE(mh(r5, MemOperand(r9, r8, 7)), "4c598007 mh\tr5,7(r9,r8)");
169
170 VERIFY_RUN();
171 }
172
TEST(SixBytes)173 TEST(SixBytes) {
174 SET_UP();
175
176 #if V8_TARGET_ARCH_S390X
177 COMPARE(llihf(ip, Operand(90000)), "c0ce00015f90 llihf\tip,90000");
178 COMPARE(agsi(MemOperand(r9, 1000), Operand(70)),
179 "eb4693e8007a agsi\t1000(r9),70");
180 COMPARE(clgfi(r7, Operand(80)), "c27e00000050 clgfi\tr7,80");
181 COMPARE(cgfi(r8, Operand(10)), "c28c0000000a cgfi\tr8,10");
182 COMPARE(xihf(fp, Operand(8)), "c0b600000008 xihf\tfp,8");
183 COMPARE(sllg(r0, r1, r2), "eb012000000d sllg\tr0,r1,0(r2)");
184 COMPARE(sllg(r0, r1, Operand(10)), "eb01000a000d sllg\tr0,r1,10(r0)");
185 COMPARE(srlg(r1, r3, Operand(10)), "eb13000a000c srlg\tr1,r3,10(r0)");
186 COMPARE(srlg(r1, r3, r10), "eb13a000000c srlg\tr1,r3,0(r10)");
187 COMPARE(slag(r1, r3, Operand(2)), "eb130002000b slag\tr1,r3,2(r0)");
188 COMPARE(slag(r1, r3, r2), "eb132000000b slag\tr1,r3,0(r2)");
189 COMPARE(srag(r1, r3, r2), "eb132000000a srag\tr1,r3,0(r2)");
190 COMPARE(srag(r1, r3, Operand(2)), "eb130002000a srag\tr1,r3,2(r0)");
191 COMPARE(risbg(r1, r2, Operand(3), Operand(5), Operand(2)),
192 "ec1203050255 risbg\tr1,r2,3,5,2");
193 COMPARE(risbgn(r1, r2, Operand(3), Operand(5), Operand(2)),
194 "ec1203050259 risbgn\tr1,r2,3,5,2");
195 COMPARE(stmg(r3, r4, MemOperand(sp, 10)),
196 "eb34f00a0024 stmg\tr3,r4,10(sp)");
197 COMPARE(ltg(r1, MemOperand(r4, sp, 10)), "e314f00a0002 ltg\tr1,10(r4,sp)");
198 COMPARE(lgh(r8, MemOperand(r1, 8888)), "e38012b80215 lgh\tr8,8888(r1)");
199 COMPARE(ag(r4, MemOperand(r9, r4, 2046)),
200 "e34947fe0008 ag\tr4,2046(r9,r4)");
201 COMPARE(agf(r1, MemOperand(r3, sp, 9)), "e313f0090018 agf\tr1,9(r3,sp)");
202 COMPARE(sg(r9, MemOperand(r5, 15)), "e390500f0009 sg\tr9,15(r5)");
203 COMPARE(ng(r7, MemOperand(r5, r6, 1000)),
204 "e37563e80080 ng\tr7,1000(r5,r6)");
205 COMPARE(og(r2, MemOperand(r8, r0, 1000)),
206 "e32803e80081 og\tr2,1000(r8,r0)");
207 COMPARE(xg(r9, MemOperand(r3, 8888)), "e39032b80282 xg\tr9,8888(r3)");
208 COMPARE(ng(r0, MemOperand(r9, r3, 900)), "e30933840080 ng\tr0,900(r9,r3)");
209 COMPARE(og(r3, MemOperand(r8, r2, 8888)),
210 "e33822b80281 og\tr3,8888(r8,r2)");
211 COMPARE(xg(r9, MemOperand(r3, 15)), "e390300f0082 xg\tr9,15(r3)");
212 COMPARE(cg(r0, MemOperand(r5, r4, 4)), "e30540040020 cg\tr0,4(r5,r4)");
213 COMPARE(lg(r1, MemOperand(r7, r8, 90)), "e317805a0004 lg\tr1,90(r7,r8)");
214 COMPARE(lgf(r1, MemOperand(sp, 15)), "e310f00f0014 lgf\tr1,15(sp)");
215 COMPARE(llgf(r0, MemOperand(r3, r4, 8)), "e30340080016 llgf\tr0,8(r3,r4)");
216 COMPARE(alg(r8, MemOperand(r4, 11)), "e380400b000a alg\tr8,11(r4)");
217 COMPARE(slg(r1, MemOperand(r5, r6, 11)), "e315600b000b slg\tr1,11(r5,r6)");
218 COMPARE(sgf(r0, MemOperand(r4, r5, 8888)),
219 "e30452b80219 sgf\tr0,8888(r4,r5)");
220 COMPARE(llgh(r4, MemOperand(r1, 8000)), "e3401f400191 llgh\tr4,8000(r1)");
221 COMPARE(llgc(r0, MemOperand(r4, r5, 30)),
222 "e304501e0090 llgc\tr0,30(r4,r5)");
223 COMPARE(lgb(r9, MemOperand(r8, r7, 10)), "e398700a0077 lgb\tr9,10(r8,r7)");
224 COMPARE(stg(r0, MemOperand(r9, 10)), "e300900a0024 stg\tr0,10(r9)");
225 COMPARE(mvghi(MemOperand(r7, 25), Operand(100)),
226 "e54870190064 mvghi\t25(r7),100");
227 COMPARE(algfi(r1, Operand(34250)), "c21a000085ca algfi\tr1,34250");
228 COMPARE(slgfi(r1, Operand(87654321)), "c21405397fb1 slgfi\tr1,87654321");
229 COMPARE(nihf(r2, Operand(8888)), "c02a000022b8 nihf\tr2,8888");
230 COMPARE(oihf(r6, Operand(9000)), "c06c00002328 oihf\tr6,9000");
231 COMPARE(msgfi(r6, Operand(90000)), "c26000015f90 msgfi\tr6,90000");
232 #else
233 COMPARE(llilf(r10, Operand(72354)), "c0af00011aa2 llilf\tr10,72354");
234 COMPARE(iilf(r4, Operand(11)), "c0490000000b iilf\tr4,11");
235 COMPARE(afi(r2, Operand(8000)), "c22900001f40 afi\tr2,8000");
236 COMPARE(asi(MemOperand(r9, 1000), Operand(70)),
237 "eb4693e8006a asi\t1000(r9),70");
238 COMPARE(alfi(r1, Operand(90)), "c21b0000005a alfi\tr1,90");
239 COMPARE(clfi(r9, Operand(60)), "c29f0000003c clfi\tr9,60");
240 COMPARE(cfi(r8, Operand(10)), "c28d0000000a cfi\tr8,10");
241 COMPARE(xilf(r3, Operand(15)), "c0370000000f xilf\tr3,15");
242 COMPARE(sllk(r6, r7, Operand(10)), "eb67000a00df sllk\tr6,r7,10(r0)");
243 COMPARE(sllk(r6, r7, r8), "eb67800000df sllk\tr6,r7,0(r8)");
244 COMPARE(slak(r1, r3, r2), "eb13200000dd slak\tr1,r3,0(r2)");
245 COMPARE(slak(r1, r3, Operand(2)), "eb13000200dd slak\tr1,r3,2(r0)");
246 COMPARE(srak(r1, r3, Operand(2)), "eb13000200dc srak\tr1,r3,2(r0)");
247 COMPARE(srak(r1, r3, r2), "eb13200000dc srak\tr1,r3,0(r2)");
248 COMPARE(stmy(r3, r4, MemOperand(sp, 10)),
249 "eb34f00a0090 stmy\tr3,r4,10(sp)");
250 COMPARE(lt_z(r1, MemOperand(r4, sp, 10)), "e314f00a0012 lt\tr1,10(r4,sp)");
251 COMPARE(ml(r0, MemOperand(r3, r9, 2046)),
252 "e30397fe0096 ml\tr0,2046(r3,r9)");
253 COMPARE(ay(r5, MemOperand(r7, 8888)), "e35072b8025a ay\tr5,8888(r7)");
254 COMPARE(sy(r8, MemOperand(r6, r7, 2046)),
255 "e38677fe005b sy\tr8,2046(r6,r7)");
256 COMPARE(ny(r2, MemOperand(r9, r0, 8888)),
257 "e32902b80254 ny\tr2,8888(r9,r0)");
258 COMPARE(oy(r8, MemOperand(r4, 321)), "e38041410056 oy\tr8,321(r4)");
259 COMPARE(xy(r5, MemOperand(r3, r2, 0)), "e35320000057 xy\tr5,0(r3,r2)");
260 COMPARE(cy(r9, MemOperand(r4, 321)), "e39041410059 cy\tr9,321(r4)");
261 COMPARE(ahy(r1, MemOperand(r5, r6, 8888)),
262 "e31562b8027a ahy\tr1,8888(r5,r6)");
263 COMPARE(shy(r1, MemOperand(r5, r6, 8888)),
264 "e31562b8027b shy\tr1,8888(r5,r6)");
265 COMPARE(lb(r7, MemOperand(sp, 15)), "e370f00f0076 lb\tr7,15(sp)");
266 COMPARE(ly(r0, MemOperand(r1, r2, 321)), "e30121410058 ly\tr0,321(r1,r2)");
267 COMPARE(aly(r9, MemOperand(r2, r3, 10)), "e392300a005e aly\tr9,10(r2,r3)");
268 COMPARE(sly(r2, MemOperand(r9, r1, 15)), "e329100f005f sly\tr2,15(r9,r1)");
269 COMPARE(llh(r4, MemOperand(r1, 10)), "e340100a0095 llh\tr4,10(r1)");
270 COMPARE(llc(r0, MemOperand(r4, r5, 30)), "e304501e0094 llc\tr0,30(r4,r5)");
271 COMPARE(chy(r9, MemOperand(r8, r7, 30)), "e398701e0079 chy\tr9,30(r8,r7)");
272 COMPARE(cly(r8, MemOperand(r5, r4, 14)), "e385400e0055 cly\tr8,14(r5,r4)");
273 COMPARE(sty(r0, MemOperand(r0, 15)), "e300000f0050 sty\tr0,15(r0)");
274 COMPARE(mvhi(MemOperand(r7, 25), Operand(100)),
275 "e54c70190064 mvhi\t25(r7),100");
276 COMPARE(slfi(r4, Operand(100)), "c24500000064 slfi\tr4,100");
277 COMPARE(msfi(r8, Operand(1000)), "c281000003e8 msfi\tr8,1000");
278 #endif
279 COMPARE(iihf(r6, Operand(9)), "c06800000009 iihf\tr6,9");
280 COMPARE(srlk(r1, r3, r2), "eb13200000de srlk\tr1,r3,0(r2)");
281 COMPARE(srlk(r1, r3, Operand(2)), "eb13000200de srlk\tr1,r3,2(r0)");
282 COMPARE(lmy(r9, r10, MemOperand(r8, 100)),
283 "eb9a80640098 lmy\tr9,r10,100(r8)");
284 COMPARE(lmg(r7, r8, MemOperand(r9, 100)),
285 "eb7890640004 lmg\tr7,r8,100(r9)");
286 COMPARE(lay(fp, MemOperand(sp, 8000)), "e3b0ff400171 lay\tfp,8000(sp)");
287 COMPARE(cliy(MemOperand(sp, 80), Operand(80)),
288 "eb50f0500055 cliy\t80(sp),80");
289 COMPARE(tmy(MemOperand(r0, 20), Operand(10)),
290 "eb0a00140051 tmy\t20(r0),10");
291 COMPARE(clg(r9, MemOperand(r6, r7, 19)), "e39670130021 clg\tr9,19(r6,r7)");
292 COMPARE(bctg(r8, MemOperand(sp, 10)), "e380f00a0046 bctg\tr8,10(sp)");
293 COMPARE(icy(r2, MemOperand(r3, 2)), "e32030020073 icy\tr2,2(r3)");
294 COMPARE(mvc(MemOperand(r9, 9), MemOperand(r3, 15), Operand(10)),
295 "d20a9009300f mvc\t9(10,r9),15(r3)");
296 COMPARE(nilf(r0, Operand(8000)), "c00b00001f40 nilf\tr0,8000");
297 COMPARE(oilf(r9, Operand(1000)), "c09d000003e8 oilf\tr9,1000");
298
299 VERIFY_RUN();
300 }
301
302 #undef SET_UP
303 #undef COMPARE
304 #undef EMIT_PENDING_LITERALS
305 #undef VERIFY_RUN
306
307 } // namespace internal
308 } // namespace v8
309