1 /* $NetBSD: sljitNativeSPARC_common.c,v 1.4 2019/01/20 23:14:16 alnsn Exp $ */
2
3 /*
4 * Stack-less Just-In-Time compiler
5 *
6 * Copyright Zoltan Herczeg (hzmester@freemail.hu). All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without modification, are
9 * permitted provided that the following conditions are met:
10 *
11 * 1. Redistributions of source code must retain the above copyright notice, this list of
12 * conditions and the following disclaimer.
13 *
14 * 2. Redistributions in binary form must reproduce the above copyright notice, this list
15 * of conditions and the following disclaimer in the documentation and/or other materials
16 * provided with the distribution.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) AND CONTRIBUTORS ``AS IS'' AND ANY
19 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
21 * SHALL THE COPYRIGHT HOLDER(S) OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
23 * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
24 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
25 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
26 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
sljit_get_platform_name(void)29 SLJIT_API_FUNC_ATTRIBUTE const char* sljit_get_platform_name(void)
30 {
31 return "SPARC" SLJIT_CPUINFO;
32 }
33
34 /* Length of an instruction word
35 Both for sparc-32 and sparc-64 */
36 typedef sljit_u32 sljit_ins;
37
38 #if (defined SLJIT_CACHE_FLUSH_OWN_IMPL && SLJIT_CACHE_FLUSH_OWN_IMPL)
39
sparc_cache_flush(sljit_ins * from,sljit_ins * to)40 static void sparc_cache_flush(sljit_ins *from, sljit_ins *to)
41 {
42 #if defined(__SUNPRO_C) && __SUNPRO_C < 0x590
43 __asm (
44 /* if (from == to) return */
45 "cmp %i0, %i1\n"
46 "be .leave\n"
47 "nop\n"
48
49 /* loop until from >= to */
50 ".mainloop:\n"
51 "flush %i0\n"
52 "add %i0, 8, %i0\n"
53 "cmp %i0, %i1\n"
54 "bcs .mainloop\n"
55 "nop\n"
56
57 /* The comparison was done above. */
58 "bne .leave\n"
59 /* nop is not necessary here, since the
60 sub operation has no side effect. */
61 "sub %i0, 4, %i0\n"
62 "flush %i0\n"
63 ".leave:"
64 );
65 #else
66 if (SLJIT_UNLIKELY(from == to))
67 return;
68
69 do {
70 __asm__ volatile (
71 "flush %0\n"
72 : : "r"(from)
73 );
74 /* Operates at least on doubleword. */
75 from += 2;
76 } while (from < to);
77
78 if (from == to) {
79 /* Flush the last word. */
80 from --;
81 __asm__ volatile (
82 "flush %0\n"
83 : : "r"(from)
84 );
85 }
86 #endif
87 }
88
89 #endif /* (defined SLJIT_CACHE_FLUSH_OWN_IMPL && SLJIT_CACHE_FLUSH_OWN_IMPL) */
90
91 /* TMP_REG2 is not used by getput_arg */
92 #define TMP_REG1 (SLJIT_NUMBER_OF_REGISTERS + 2)
93 #define TMP_REG2 (SLJIT_NUMBER_OF_REGISTERS + 3)
94 #define TMP_REG3 (SLJIT_NUMBER_OF_REGISTERS + 4)
95 #define TMP_LINK (SLJIT_NUMBER_OF_REGISTERS + 5)
96
97 #define TMP_FREG1 (0)
98 #define TMP_FREG2 ((SLJIT_NUMBER_OF_FLOAT_REGISTERS + 1) << 1)
99
100 static const sljit_u8 reg_map[SLJIT_NUMBER_OF_REGISTERS + 6] = {
101 0, 8, 9, 10, 13, 29, 28, 27, 23, 22, 21, 20, 19, 18, 17, 16, 26, 25, 24, 14, 1, 11, 12, 15
102 };
103
104 /* --------------------------------------------------------------------- */
105 /* Instrucion forms */
106 /* --------------------------------------------------------------------- */
107
108 #define D(d) (reg_map[d] << 25)
109 #define DA(d) ((d) << 25)
110 #define S1(s1) (reg_map[s1] << 14)
111 #define S2(s2) (reg_map[s2])
112 #define S1A(s1) ((s1) << 14)
113 #define S2A(s2) (s2)
114 #define IMM_ARG 0x2000
115 #define DOP(op) ((op) << 5)
116 #define IMM(imm) (((imm) & 0x1fff) | IMM_ARG)
117
118 #define DR(dr) (reg_map[dr])
119 #define OPC1(opcode) ((opcode) << 30)
120 #define OPC2(opcode) ((opcode) << 22)
121 #define OPC3(opcode) ((opcode) << 19)
122 #define SET_FLAGS OPC3(0x10)
123
124 #define ADD (OPC1(0x2) | OPC3(0x00))
125 #define ADDC (OPC1(0x2) | OPC3(0x08))
126 #define AND (OPC1(0x2) | OPC3(0x01))
127 #define ANDN (OPC1(0x2) | OPC3(0x05))
128 #define CALL (OPC1(0x1))
129 #define FABSS (OPC1(0x2) | OPC3(0x34) | DOP(0x09))
130 #define FADDD (OPC1(0x2) | OPC3(0x34) | DOP(0x42))
131 #define FADDS (OPC1(0x2) | OPC3(0x34) | DOP(0x41))
132 #define FCMPD (OPC1(0x2) | OPC3(0x35) | DOP(0x52))
133 #define FCMPS (OPC1(0x2) | OPC3(0x35) | DOP(0x51))
134 #define FDIVD (OPC1(0x2) | OPC3(0x34) | DOP(0x4e))
135 #define FDIVS (OPC1(0x2) | OPC3(0x34) | DOP(0x4d))
136 #define FDTOI (OPC1(0x2) | OPC3(0x34) | DOP(0xd2))
137 #define FDTOS (OPC1(0x2) | OPC3(0x34) | DOP(0xc6))
138 #define FITOD (OPC1(0x2) | OPC3(0x34) | DOP(0xc8))
139 #define FITOS (OPC1(0x2) | OPC3(0x34) | DOP(0xc4))
140 #define FMOVS (OPC1(0x2) | OPC3(0x34) | DOP(0x01))
141 #define FMULD (OPC1(0x2) | OPC3(0x34) | DOP(0x4a))
142 #define FMULS (OPC1(0x2) | OPC3(0x34) | DOP(0x49))
143 #define FNEGS (OPC1(0x2) | OPC3(0x34) | DOP(0x05))
144 #define FSTOD (OPC1(0x2) | OPC3(0x34) | DOP(0xc9))
145 #define FSTOI (OPC1(0x2) | OPC3(0x34) | DOP(0xd1))
146 #define FSUBD (OPC1(0x2) | OPC3(0x34) | DOP(0x46))
147 #define FSUBS (OPC1(0x2) | OPC3(0x34) | DOP(0x45))
148 #define JMPL (OPC1(0x2) | OPC3(0x38))
149 #define NOP (OPC1(0x0) | OPC2(0x04))
150 #define OR (OPC1(0x2) | OPC3(0x02))
151 #define ORN (OPC1(0x2) | OPC3(0x06))
152 #define RDY (OPC1(0x2) | OPC3(0x28) | S1A(0))
153 #define RESTORE (OPC1(0x2) | OPC3(0x3d))
154 #define SAVE (OPC1(0x2) | OPC3(0x3c))
155 #define SETHI (OPC1(0x0) | OPC2(0x04))
156 #define SLL (OPC1(0x2) | OPC3(0x25))
157 #define SLLX (OPC1(0x2) | OPC3(0x25) | (1 << 12))
158 #define SRA (OPC1(0x2) | OPC3(0x27))
159 #define SRAX (OPC1(0x2) | OPC3(0x27) | (1 << 12))
160 #define SRL (OPC1(0x2) | OPC3(0x26))
161 #define SRLX (OPC1(0x2) | OPC3(0x26) | (1 << 12))
162 #define SUB (OPC1(0x2) | OPC3(0x04))
163 #define SUBC (OPC1(0x2) | OPC3(0x0c))
164 #define TA (OPC1(0x2) | OPC3(0x3a) | (8 << 25))
165 #define WRY (OPC1(0x2) | OPC3(0x30) | DA(0))
166 #define XOR (OPC1(0x2) | OPC3(0x03))
167 #define XNOR (OPC1(0x2) | OPC3(0x07))
168
169 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32)
170 #define MAX_DISP (0x1fffff)
171 #define MIN_DISP (-0x200000)
172 #define DISP_MASK (0x3fffff)
173
174 #define BICC (OPC1(0x0) | OPC2(0x2))
175 #define FBFCC (OPC1(0x0) | OPC2(0x6))
176 #define SLL_W SLL
177 #define SDIV (OPC1(0x2) | OPC3(0x0f))
178 #define SMUL (OPC1(0x2) | OPC3(0x0b))
179 #define UDIV (OPC1(0x2) | OPC3(0x0e))
180 #define UMUL (OPC1(0x2) | OPC3(0x0a))
181 #else
182 #define SLL_W SLLX
183 #endif
184
185 #define SIMM_MAX (0x0fff)
186 #define SIMM_MIN (-0x1000)
187
188 /* dest_reg is the absolute name of the register
189 Useful for reordering instructions in the delay slot. */
push_inst(struct sljit_compiler * compiler,sljit_ins ins,sljit_s32 delay_slot)190 static sljit_s32 push_inst(struct sljit_compiler *compiler, sljit_ins ins, sljit_s32 delay_slot)
191 {
192 sljit_ins *ptr;
193 SLJIT_ASSERT((delay_slot & DST_INS_MASK) == UNMOVABLE_INS
194 || (delay_slot & DST_INS_MASK) == MOVABLE_INS
195 || (delay_slot & DST_INS_MASK) == ((ins >> 25) & 0x1f));
196 ptr = (sljit_ins*)ensure_buf(compiler, sizeof(sljit_ins));
197 FAIL_IF(!ptr);
198 *ptr = ins;
199 compiler->size++;
200 compiler->delay_slot = delay_slot;
201 return SLJIT_SUCCESS;
202 }
203
detect_jump_type(struct sljit_jump * jump,sljit_ins * code_ptr,sljit_ins * code,sljit_sw executable_offset)204 static SLJIT_INLINE sljit_ins* detect_jump_type(struct sljit_jump *jump, sljit_ins *code_ptr, sljit_ins *code, sljit_sw executable_offset)
205 {
206 sljit_sw diff;
207 sljit_uw target_addr;
208 sljit_ins *inst;
209 sljit_ins saved_inst;
210
211 if (jump->flags & SLJIT_REWRITABLE_JUMP)
212 return code_ptr;
213
214 if (jump->flags & JUMP_ADDR)
215 target_addr = jump->u.target;
216 else {
217 SLJIT_ASSERT(jump->flags & JUMP_LABEL);
218 target_addr = (sljit_uw)(code + jump->u.label->size) + (sljit_uw)executable_offset;
219 }
220 inst = (sljit_ins*)jump->addr;
221
222 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32)
223 if (jump->flags & IS_CALL) {
224 /* Call is always patchable on sparc 32. */
225 jump->flags |= PATCH_CALL;
226 if (jump->flags & IS_MOVABLE) {
227 inst[0] = inst[-1];
228 inst[-1] = CALL;
229 jump->addr -= sizeof(sljit_ins);
230 return inst;
231 }
232 inst[0] = CALL;
233 inst[1] = NOP;
234 return inst + 1;
235 }
236 #else
237 /* Both calls and BPr instructions shall not pass this point. */
238 #error "Implementation required"
239 #endif
240
241 if (jump->flags & IS_COND)
242 inst--;
243
244 diff = ((sljit_sw)target_addr - (sljit_sw)(inst - 1) - executable_offset) >> 2;
245
246 if (jump->flags & IS_MOVABLE) {
247 if (diff <= MAX_DISP && diff >= MIN_DISP) {
248 jump->flags |= PATCH_B;
249 inst--;
250 if (jump->flags & IS_COND) {
251 saved_inst = inst[0];
252 inst[0] = inst[1] ^ (1 << 28);
253 inst[1] = saved_inst;
254 } else {
255 inst[1] = inst[0];
256 inst[0] = BICC | DA(0x8);
257 }
258 jump->addr = (sljit_uw)inst;
259 return inst + 1;
260 }
261 }
262
263 diff += sizeof(sljit_ins);
264
265 if (diff <= MAX_DISP && diff >= MIN_DISP) {
266 jump->flags |= PATCH_B;
267 if (jump->flags & IS_COND)
268 inst[0] ^= (1 << 28);
269 else
270 inst[0] = BICC | DA(0x8);
271 inst[1] = NOP;
272 jump->addr = (sljit_uw)inst;
273 return inst + 1;
274 }
275
276 return code_ptr;
277 }
278
sljit_generate_code(struct sljit_compiler * compiler)279 SLJIT_API_FUNC_ATTRIBUTE void* sljit_generate_code(struct sljit_compiler *compiler)
280 {
281 struct sljit_memory_fragment *buf;
282 sljit_ins *code;
283 sljit_ins *code_ptr;
284 sljit_ins *buf_ptr;
285 sljit_ins *buf_end;
286 sljit_uw word_count;
287 sljit_sw executable_offset;
288 sljit_uw addr;
289
290 struct sljit_label *label;
291 struct sljit_jump *jump;
292 struct sljit_const *const_;
293
294 CHECK_ERROR_PTR();
295 CHECK_PTR(check_sljit_generate_code(compiler));
296 reverse_buf(compiler);
297
298 code = (sljit_ins*)SLJIT_MALLOC_EXEC(compiler->size * sizeof(sljit_ins));
299 PTR_FAIL_WITH_EXEC_IF(code);
300 buf = compiler->buf;
301
302 code_ptr = code;
303 word_count = 0;
304 executable_offset = SLJIT_EXEC_OFFSET(code);
305
306 label = compiler->labels;
307 jump = compiler->jumps;
308 const_ = compiler->consts;
309
310 do {
311 buf_ptr = (sljit_ins*)buf->memory;
312 buf_end = buf_ptr + (buf->used_size >> 2);
313 do {
314 *code_ptr = *buf_ptr++;
315 SLJIT_ASSERT(!label || label->size >= word_count);
316 SLJIT_ASSERT(!jump || jump->addr >= word_count);
317 SLJIT_ASSERT(!const_ || const_->addr >= word_count);
318 /* These structures are ordered by their address. */
319 if (label && label->size == word_count) {
320 /* Just recording the address. */
321 label->addr = (sljit_uw)SLJIT_ADD_EXEC_OFFSET(code_ptr, executable_offset);
322 label->size = code_ptr - code;
323 label = label->next;
324 }
325 if (jump && jump->addr == word_count) {
326 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32)
327 jump->addr = (sljit_uw)(code_ptr - 3);
328 #else
329 jump->addr = (sljit_uw)(code_ptr - 6);
330 #endif
331 code_ptr = detect_jump_type(jump, code_ptr, code, executable_offset);
332 jump = jump->next;
333 }
334 if (const_ && const_->addr == word_count) {
335 /* Just recording the address. */
336 const_->addr = (sljit_uw)code_ptr;
337 const_ = const_->next;
338 }
339 code_ptr ++;
340 word_count ++;
341 } while (buf_ptr < buf_end);
342
343 buf = buf->next;
344 } while (buf);
345
346 if (label && label->size == word_count) {
347 label->addr = (sljit_uw)SLJIT_ADD_EXEC_OFFSET(code_ptr, executable_offset);
348 label->size = code_ptr - code;
349 label = label->next;
350 }
351
352 SLJIT_ASSERT(!label);
353 SLJIT_ASSERT(!jump);
354 SLJIT_ASSERT(!const_);
355 SLJIT_ASSERT(code_ptr - code <= (sljit_s32)compiler->size);
356
357 jump = compiler->jumps;
358 while (jump) {
359 do {
360 addr = (jump->flags & JUMP_LABEL) ? jump->u.label->addr : jump->u.target;
361 buf_ptr = (sljit_ins *)jump->addr;
362
363 if (jump->flags & PATCH_CALL) {
364 addr = (sljit_sw)(addr - (sljit_uw)SLJIT_ADD_EXEC_OFFSET(buf_ptr, executable_offset)) >> 2;
365 SLJIT_ASSERT((sljit_sw)addr <= 0x1fffffff && (sljit_sw)addr >= -0x20000000);
366 buf_ptr[0] = CALL | (addr & 0x3fffffff);
367 break;
368 }
369 if (jump->flags & PATCH_B) {
370 addr = (sljit_sw)(addr - (sljit_uw)SLJIT_ADD_EXEC_OFFSET(buf_ptr, executable_offset)) >> 2;
371 SLJIT_ASSERT((sljit_sw)addr <= MAX_DISP && (sljit_sw)addr >= MIN_DISP);
372 buf_ptr[0] = (buf_ptr[0] & ~DISP_MASK) | (addr & DISP_MASK);
373 break;
374 }
375
376 /* Set the fields of immediate loads. */
377 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32)
378 buf_ptr[0] = (buf_ptr[0] & 0xffc00000) | ((addr >> 10) & 0x3fffff);
379 buf_ptr[1] = (buf_ptr[1] & 0xfffffc00) | (addr & 0x3ff);
380 #else
381 #error "Implementation required"
382 #endif
383 } while (0);
384 jump = jump->next;
385 }
386
387
388 compiler->error = SLJIT_ERR_COMPILED;
389 compiler->executable_offset = executable_offset;
390 compiler->executable_size = (code_ptr - code) * sizeof(sljit_ins);
391
392 code = (sljit_ins *)SLJIT_ADD_EXEC_OFFSET(code, executable_offset);
393 code_ptr = (sljit_ins *)SLJIT_ADD_EXEC_OFFSET(code_ptr, executable_offset);
394
395 SLJIT_CACHE_FLUSH(code, code_ptr);
396 return code;
397 }
398
399 /* --------------------------------------------------------------------- */
400 /* Entry, exit */
401 /* --------------------------------------------------------------------- */
402
403 /* Creates an index in data_transfer_insts array. */
404 #define LOAD_DATA 0x01
405 #define WORD_DATA 0x00
406 #define BYTE_DATA 0x02
407 #define HALF_DATA 0x04
408 #define INT_DATA 0x06
409 #define SIGNED_DATA 0x08
410 /* Separates integer and floating point registers */
411 #define GPR_REG 0x0f
412 #define DOUBLE_DATA 0x10
413 #define SINGLE_DATA 0x12
414
415 #define MEM_MASK 0x1f
416
417 #define WRITE_BACK 0x00020
418 #define ARG_TEST 0x00040
419 #define ALT_KEEP_CACHE 0x00080
420 #define CUMULATIVE_OP 0x00100
421 #define IMM_OP 0x00200
422 #define SRC2_IMM 0x00400
423
424 #define REG_DEST 0x00800
425 #define REG2_SOURCE 0x01000
426 #define SLOW_SRC1 0x02000
427 #define SLOW_SRC2 0x04000
428 #define SLOW_DEST 0x08000
429
430 /* SET_FLAGS (0x10 << 19) also belong here! */
431
432 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32)
433 #include "sljitNativeSPARC_32.c"
434 #else
435 #include "sljitNativeSPARC_64.c"
436 #endif
437
sljit_emit_enter(struct sljit_compiler * compiler,sljit_s32 options,sljit_s32 args,sljit_s32 scratches,sljit_s32 saveds,sljit_s32 fscratches,sljit_s32 fsaveds,sljit_s32 local_size)438 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_enter(struct sljit_compiler *compiler,
439 sljit_s32 options, sljit_s32 args, sljit_s32 scratches, sljit_s32 saveds,
440 sljit_s32 fscratches, sljit_s32 fsaveds, sljit_s32 local_size)
441 {
442 CHECK_ERROR();
443 CHECK(check_sljit_emit_enter(compiler, options, args, scratches, saveds, fscratches, fsaveds, local_size));
444 set_emit_enter(compiler, options, args, scratches, saveds, fscratches, fsaveds, local_size);
445
446 local_size = (local_size + SLJIT_LOCALS_OFFSET + 7) & ~0x7;
447 compiler->local_size = local_size;
448
449 if (local_size <= SIMM_MAX) {
450 FAIL_IF(push_inst(compiler, SAVE | D(SLJIT_SP) | S1(SLJIT_SP) | IMM(-local_size), UNMOVABLE_INS));
451 }
452 else {
453 FAIL_IF(load_immediate(compiler, TMP_REG1, -local_size));
454 FAIL_IF(push_inst(compiler, SAVE | D(SLJIT_SP) | S1(SLJIT_SP) | S2(TMP_REG1), UNMOVABLE_INS));
455 }
456
457 /* Arguments are in their appropriate registers. */
458
459 return SLJIT_SUCCESS;
460 }
461
sljit_set_context(struct sljit_compiler * compiler,sljit_s32 options,sljit_s32 args,sljit_s32 scratches,sljit_s32 saveds,sljit_s32 fscratches,sljit_s32 fsaveds,sljit_s32 local_size)462 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_set_context(struct sljit_compiler *compiler,
463 sljit_s32 options, sljit_s32 args, sljit_s32 scratches, sljit_s32 saveds,
464 sljit_s32 fscratches, sljit_s32 fsaveds, sljit_s32 local_size)
465 {
466 CHECK_ERROR();
467 CHECK(check_sljit_set_context(compiler, options, args, scratches, saveds, fscratches, fsaveds, local_size));
468 set_set_context(compiler, options, args, scratches, saveds, fscratches, fsaveds, local_size);
469
470 compiler->local_size = (local_size + SLJIT_LOCALS_OFFSET + 7) & ~0x7;
471 return SLJIT_SUCCESS;
472 }
473
sljit_emit_return(struct sljit_compiler * compiler,sljit_s32 op,sljit_s32 src,sljit_sw srcw)474 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_return(struct sljit_compiler *compiler, sljit_s32 op, sljit_s32 src, sljit_sw srcw)
475 {
476 CHECK_ERROR();
477 CHECK(check_sljit_emit_return(compiler, op, src, srcw));
478
479 if (op != SLJIT_MOV || !FAST_IS_REG(src)) {
480 FAIL_IF(emit_mov_before_return(compiler, op, src, srcw));
481 src = SLJIT_R0;
482 }
483
484 FAIL_IF(push_inst(compiler, JMPL | D(0) | S1A(31) | IMM(8), UNMOVABLE_INS));
485 return push_inst(compiler, RESTORE | D(SLJIT_R0) | S1(src) | S2(0), UNMOVABLE_INS);
486 }
487
488 /* --------------------------------------------------------------------- */
489 /* Operators */
490 /* --------------------------------------------------------------------- */
491
492 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32)
493 #define ARCH_32_64(a, b) a
494 #else
495 #define ARCH_32_64(a, b) b
496 #endif
497
498 static const sljit_ins data_transfer_insts[16 + 4] = {
499 /* u w s */ ARCH_32_64(OPC1(3) | OPC3(0x04) /* stw */, OPC1(3) | OPC3(0x0e) /* stx */),
500 /* u w l */ ARCH_32_64(OPC1(3) | OPC3(0x00) /* lduw */, OPC1(3) | OPC3(0x0b) /* ldx */),
501 /* u b s */ OPC1(3) | OPC3(0x05) /* stb */,
502 /* u b l */ OPC1(3) | OPC3(0x01) /* ldub */,
503 /* u h s */ OPC1(3) | OPC3(0x06) /* sth */,
504 /* u h l */ OPC1(3) | OPC3(0x02) /* lduh */,
505 /* u i s */ OPC1(3) | OPC3(0x04) /* stw */,
506 /* u i l */ OPC1(3) | OPC3(0x00) /* lduw */,
507
508 /* s w s */ ARCH_32_64(OPC1(3) | OPC3(0x04) /* stw */, OPC1(3) | OPC3(0x0e) /* stx */),
509 /* s w l */ ARCH_32_64(OPC1(3) | OPC3(0x00) /* lduw */, OPC1(3) | OPC3(0x0b) /* ldx */),
510 /* s b s */ OPC1(3) | OPC3(0x05) /* stb */,
511 /* s b l */ OPC1(3) | OPC3(0x09) /* ldsb */,
512 /* s h s */ OPC1(3) | OPC3(0x06) /* sth */,
513 /* s h l */ OPC1(3) | OPC3(0x0a) /* ldsh */,
514 /* s i s */ OPC1(3) | OPC3(0x04) /* stw */,
515 /* s i l */ ARCH_32_64(OPC1(3) | OPC3(0x00) /* lduw */, OPC1(3) | OPC3(0x08) /* ldsw */),
516
517 /* d s */ OPC1(3) | OPC3(0x27),
518 /* d l */ OPC1(3) | OPC3(0x23),
519 /* s s */ OPC1(3) | OPC3(0x24),
520 /* s l */ OPC1(3) | OPC3(0x20),
521 };
522
523 #undef ARCH_32_64
524
525 /* Can perform an operation using at most 1 instruction. */
getput_arg_fast(struct sljit_compiler * compiler,sljit_s32 flags,sljit_s32 reg,sljit_s32 arg,sljit_sw argw)526 static sljit_s32 getput_arg_fast(struct sljit_compiler *compiler, sljit_s32 flags, sljit_s32 reg, sljit_s32 arg, sljit_sw argw)
527 {
528 SLJIT_ASSERT(arg & SLJIT_MEM);
529
530 if (!(flags & WRITE_BACK) || !(arg & REG_MASK)) {
531 if ((!(arg & OFFS_REG_MASK) && argw <= SIMM_MAX && argw >= SIMM_MIN)
532 || ((arg & OFFS_REG_MASK) && (argw & 0x3) == 0)) {
533 /* Works for both absoulte and relative addresses (immediate case). */
534 if (SLJIT_UNLIKELY(flags & ARG_TEST))
535 return 1;
536 FAIL_IF(push_inst(compiler, data_transfer_insts[flags & MEM_MASK]
537 | ((flags & MEM_MASK) <= GPR_REG ? D(reg) : DA(reg))
538 | S1(arg & REG_MASK) | ((arg & OFFS_REG_MASK) ? S2(OFFS_REG(arg)) : IMM(argw)),
539 ((flags & MEM_MASK) <= GPR_REG && (flags & LOAD_DATA)) ? DR(reg) : MOVABLE_INS));
540 return -1;
541 }
542 }
543 return 0;
544 }
545
546 /* See getput_arg below.
547 Note: can_cache is called only for binary operators. Those
548 operators always uses word arguments without write back. */
can_cache(sljit_s32 arg,sljit_sw argw,sljit_s32 next_arg,sljit_sw next_argw)549 static sljit_s32 can_cache(sljit_s32 arg, sljit_sw argw, sljit_s32 next_arg, sljit_sw next_argw)
550 {
551 SLJIT_ASSERT((arg & SLJIT_MEM) && (next_arg & SLJIT_MEM));
552
553 /* Simple operation except for updates. */
554 if (arg & OFFS_REG_MASK) {
555 argw &= 0x3;
556 SLJIT_ASSERT(argw);
557 next_argw &= 0x3;
558 if ((arg & OFFS_REG_MASK) == (next_arg & OFFS_REG_MASK) && argw == next_argw)
559 return 1;
560 return 0;
561 }
562
563 if (((next_argw - argw) <= SIMM_MAX && (next_argw - argw) >= SIMM_MIN))
564 return 1;
565 return 0;
566 }
567
568 /* Emit the necessary instructions. See can_cache above. */
getput_arg(struct sljit_compiler * compiler,sljit_s32 flags,sljit_s32 reg,sljit_s32 arg,sljit_sw argw,sljit_s32 next_arg,sljit_sw next_argw)569 static sljit_s32 getput_arg(struct sljit_compiler *compiler, sljit_s32 flags, sljit_s32 reg, sljit_s32 arg, sljit_sw argw, sljit_s32 next_arg, sljit_sw next_argw)
570 {
571 sljit_s32 base, arg2, delay_slot;
572 sljit_ins dest;
573
574 SLJIT_ASSERT(arg & SLJIT_MEM);
575 if (!(next_arg & SLJIT_MEM)) {
576 next_arg = 0;
577 next_argw = 0;
578 }
579
580 base = arg & REG_MASK;
581 if (SLJIT_UNLIKELY(arg & OFFS_REG_MASK)) {
582 argw &= 0x3;
583
584 /* Using the cache. */
585 if (((SLJIT_MEM | (arg & OFFS_REG_MASK)) == compiler->cache_arg) && (argw == compiler->cache_argw))
586 arg2 = TMP_REG3;
587 else {
588 if ((arg & OFFS_REG_MASK) == (next_arg & OFFS_REG_MASK) && argw == (next_argw & 0x3)) {
589 compiler->cache_arg = SLJIT_MEM | (arg & OFFS_REG_MASK);
590 compiler->cache_argw = argw;
591 arg2 = TMP_REG3;
592 }
593 else if ((flags & LOAD_DATA) && ((flags & MEM_MASK) <= GPR_REG) && reg != base && reg != OFFS_REG(arg))
594 arg2 = reg;
595 else /* It must be a mov operation, so tmp1 must be free to use. */
596 arg2 = TMP_REG1;
597 FAIL_IF(push_inst(compiler, SLL_W | D(arg2) | S1(OFFS_REG(arg)) | IMM_ARG | argw, DR(arg2)));
598 }
599 }
600 else {
601 /* Using the cache. */
602 if ((compiler->cache_arg == SLJIT_MEM) && (argw - compiler->cache_argw) <= SIMM_MAX && (argw - compiler->cache_argw) >= SIMM_MIN) {
603 if (argw != compiler->cache_argw) {
604 FAIL_IF(push_inst(compiler, ADD | D(TMP_REG3) | S1(TMP_REG3) | IMM(argw - compiler->cache_argw), DR(TMP_REG3)));
605 compiler->cache_argw = argw;
606 }
607 arg2 = TMP_REG3;
608 } else {
609 if ((next_argw - argw) <= SIMM_MAX && (next_argw - argw) >= SIMM_MIN) {
610 compiler->cache_arg = SLJIT_MEM;
611 compiler->cache_argw = argw;
612 arg2 = TMP_REG3;
613 }
614 else if ((flags & LOAD_DATA) && ((flags & MEM_MASK) <= GPR_REG) && reg != base)
615 arg2 = reg;
616 else /* It must be a mov operation, so tmp1 must be free to use. */
617 arg2 = TMP_REG1;
618 FAIL_IF(load_immediate(compiler, arg2, argw));
619 }
620 }
621
622 dest = ((flags & MEM_MASK) <= GPR_REG ? D(reg) : DA(reg));
623 delay_slot = ((flags & MEM_MASK) <= GPR_REG && (flags & LOAD_DATA)) ? DR(reg) : MOVABLE_INS;
624 if (!base)
625 return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | dest | S1(arg2) | IMM(0), delay_slot);
626 if (!(flags & WRITE_BACK))
627 return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | dest | S1(base) | S2(arg2), delay_slot);
628 FAIL_IF(push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | dest | S1(base) | S2(arg2), delay_slot));
629 return push_inst(compiler, ADD | D(base) | S1(base) | S2(arg2), DR(base));
630 }
631
emit_op_mem(struct sljit_compiler * compiler,sljit_s32 flags,sljit_s32 reg,sljit_s32 arg,sljit_sw argw)632 static SLJIT_INLINE sljit_s32 emit_op_mem(struct sljit_compiler *compiler, sljit_s32 flags, sljit_s32 reg, sljit_s32 arg, sljit_sw argw)
633 {
634 if (getput_arg_fast(compiler, flags, reg, arg, argw))
635 return compiler->error;
636 compiler->cache_arg = 0;
637 compiler->cache_argw = 0;
638 return getput_arg(compiler, flags, reg, arg, argw, 0, 0);
639 }
640
emit_op_mem2(struct sljit_compiler * compiler,sljit_s32 flags,sljit_s32 reg,sljit_s32 arg1,sljit_sw arg1w,sljit_s32 arg2,sljit_sw arg2w)641 static SLJIT_INLINE sljit_s32 emit_op_mem2(struct sljit_compiler *compiler, sljit_s32 flags, sljit_s32 reg, sljit_s32 arg1, sljit_sw arg1w, sljit_s32 arg2, sljit_sw arg2w)
642 {
643 if (getput_arg_fast(compiler, flags, reg, arg1, arg1w))
644 return compiler->error;
645 return getput_arg(compiler, flags, reg, arg1, arg1w, arg2, arg2w);
646 }
647
emit_op(struct sljit_compiler * compiler,sljit_s32 op,sljit_s32 flags,sljit_s32 dst,sljit_sw dstw,sljit_s32 src1,sljit_sw src1w,sljit_s32 src2,sljit_sw src2w)648 static sljit_s32 emit_op(struct sljit_compiler *compiler, sljit_s32 op, sljit_s32 flags,
649 sljit_s32 dst, sljit_sw dstw,
650 sljit_s32 src1, sljit_sw src1w,
651 sljit_s32 src2, sljit_sw src2w)
652 {
653 /* arg1 goes to TMP_REG1 or src reg
654 arg2 goes to TMP_REG2, imm or src reg
655 TMP_REG3 can be used for caching
656 result goes to TMP_REG2, so put result can use TMP_REG1 and TMP_REG3. */
657 sljit_s32 dst_r = TMP_REG2;
658 sljit_s32 src1_r;
659 sljit_sw src2_r = 0;
660 sljit_s32 sugg_src2_r = TMP_REG2;
661
662 if (!(flags & ALT_KEEP_CACHE)) {
663 compiler->cache_arg = 0;
664 compiler->cache_argw = 0;
665 }
666
667 if (SLJIT_UNLIKELY(dst == SLJIT_UNUSED)) {
668 if (op >= SLJIT_MOV && op <= SLJIT_MOVU_S32 && !(src2 & SLJIT_MEM))
669 return SLJIT_SUCCESS;
670 }
671 else if (FAST_IS_REG(dst)) {
672 dst_r = dst;
673 flags |= REG_DEST;
674 if (op >= SLJIT_MOV && op <= SLJIT_MOVU_S32)
675 sugg_src2_r = dst_r;
676 }
677 else if ((dst & SLJIT_MEM) && !getput_arg_fast(compiler, flags | ARG_TEST, TMP_REG1, dst, dstw))
678 flags |= SLOW_DEST;
679
680 if (flags & IMM_OP) {
681 if ((src2 & SLJIT_IMM) && src2w) {
682 if (src2w <= SIMM_MAX && src2w >= SIMM_MIN) {
683 flags |= SRC2_IMM;
684 src2_r = src2w;
685 }
686 }
687 if (!(flags & SRC2_IMM) && (flags & CUMULATIVE_OP) && (src1 & SLJIT_IMM) && src1w) {
688 if (src1w <= SIMM_MAX && src1w >= SIMM_MIN) {
689 flags |= SRC2_IMM;
690 src2_r = src1w;
691
692 /* And swap arguments. */
693 src1 = src2;
694 src1w = src2w;
695 src2 = SLJIT_IMM;
696 /* src2w = src2_r unneeded. */
697 }
698 }
699 }
700
701 /* Source 1. */
702 if (FAST_IS_REG(src1))
703 src1_r = src1;
704 else if (src1 & SLJIT_IMM) {
705 if (src1w) {
706 FAIL_IF(load_immediate(compiler, TMP_REG1, src1w));
707 src1_r = TMP_REG1;
708 }
709 else
710 src1_r = 0;
711 }
712 else {
713 if (getput_arg_fast(compiler, flags | LOAD_DATA, TMP_REG1, src1, src1w))
714 FAIL_IF(compiler->error);
715 else
716 flags |= SLOW_SRC1;
717 src1_r = TMP_REG1;
718 }
719
720 /* Source 2. */
721 if (FAST_IS_REG(src2)) {
722 src2_r = src2;
723 flags |= REG2_SOURCE;
724 if (!(flags & REG_DEST) && op >= SLJIT_MOV && op <= SLJIT_MOVU_S32)
725 dst_r = src2_r;
726 }
727 else if (src2 & SLJIT_IMM) {
728 if (!(flags & SRC2_IMM)) {
729 if (src2w) {
730 FAIL_IF(load_immediate(compiler, sugg_src2_r, src2w));
731 src2_r = sugg_src2_r;
732 }
733 else {
734 src2_r = 0;
735 if ((op >= SLJIT_MOV && op <= SLJIT_MOVU_S32) && (dst & SLJIT_MEM))
736 dst_r = 0;
737 }
738 }
739 }
740 else {
741 if (getput_arg_fast(compiler, flags | LOAD_DATA, sugg_src2_r, src2, src2w))
742 FAIL_IF(compiler->error);
743 else
744 flags |= SLOW_SRC2;
745 src2_r = sugg_src2_r;
746 }
747
748 if ((flags & (SLOW_SRC1 | SLOW_SRC2)) == (SLOW_SRC1 | SLOW_SRC2)) {
749 SLJIT_ASSERT(src2_r == TMP_REG2);
750 if (!can_cache(src1, src1w, src2, src2w) && can_cache(src1, src1w, dst, dstw)) {
751 FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, TMP_REG2, src2, src2w, src1, src1w));
752 FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, TMP_REG1, src1, src1w, dst, dstw));
753 }
754 else {
755 FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, TMP_REG1, src1, src1w, src2, src2w));
756 FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, TMP_REG2, src2, src2w, dst, dstw));
757 }
758 }
759 else if (flags & SLOW_SRC1)
760 FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, TMP_REG1, src1, src1w, dst, dstw));
761 else if (flags & SLOW_SRC2)
762 FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, sugg_src2_r, src2, src2w, dst, dstw));
763
764 FAIL_IF(emit_single_op(compiler, op, flags, dst_r, src1_r, src2_r));
765
766 if (dst & SLJIT_MEM) {
767 if (!(flags & SLOW_DEST)) {
768 getput_arg_fast(compiler, flags, dst_r, dst, dstw);
769 return compiler->error;
770 }
771 return getput_arg(compiler, flags, dst_r, dst, dstw, 0, 0);
772 }
773
774 return SLJIT_SUCCESS;
775 }
776
sljit_emit_op0(struct sljit_compiler * compiler,sljit_s32 op)777 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_op0(struct sljit_compiler *compiler, sljit_s32 op)
778 {
779 CHECK_ERROR();
780 CHECK(check_sljit_emit_op0(compiler, op));
781
782 op = GET_OPCODE(op);
783 switch (op) {
784 case SLJIT_BREAKPOINT:
785 return push_inst(compiler, TA, UNMOVABLE_INS);
786 case SLJIT_NOP:
787 return push_inst(compiler, NOP, UNMOVABLE_INS);
788 case SLJIT_LMUL_UW:
789 case SLJIT_LMUL_SW:
790 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32)
791 FAIL_IF(push_inst(compiler, (op == SLJIT_LMUL_UW ? UMUL : SMUL) | D(SLJIT_R0) | S1(SLJIT_R0) | S2(SLJIT_R1), DR(SLJIT_R0)));
792 return push_inst(compiler, RDY | D(SLJIT_R1), DR(SLJIT_R1));
793 #else
794 #error "Implementation required"
795 #endif
796 case SLJIT_DIVMOD_UW:
797 case SLJIT_DIVMOD_SW:
798 case SLJIT_DIV_UW:
799 case SLJIT_DIV_SW:
800 SLJIT_COMPILE_ASSERT((SLJIT_DIVMOD_UW & 0x2) == 0 && SLJIT_DIV_UW - 0x2 == SLJIT_DIVMOD_UW, bad_div_opcode_assignments);
801 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32)
802 if ((op | 0x2) == SLJIT_DIV_UW)
803 FAIL_IF(push_inst(compiler, WRY | S1(0), MOVABLE_INS));
804 else {
805 FAIL_IF(push_inst(compiler, SRA | D(TMP_REG1) | S1(SLJIT_R0) | IMM(31), DR(TMP_REG1)));
806 FAIL_IF(push_inst(compiler, WRY | S1(TMP_REG1), MOVABLE_INS));
807 }
808 if (op <= SLJIT_DIVMOD_SW)
809 FAIL_IF(push_inst(compiler, OR | D(TMP_REG2) | S1(0) | S2(SLJIT_R0), DR(TMP_REG2)));
810 FAIL_IF(push_inst(compiler, ((op | 0x2) == SLJIT_DIV_UW ? UDIV : SDIV) | D(SLJIT_R0) | S1(SLJIT_R0) | S2(SLJIT_R1), DR(SLJIT_R0)));
811 if (op >= SLJIT_DIV_UW)
812 return SLJIT_SUCCESS;
813 FAIL_IF(push_inst(compiler, SMUL | D(SLJIT_R1) | S1(SLJIT_R0) | S2(SLJIT_R1), DR(SLJIT_R1)));
814 return push_inst(compiler, SUB | D(SLJIT_R1) | S1(TMP_REG2) | S2(SLJIT_R1), DR(SLJIT_R1));
815 #else
816 #error "Implementation required"
817 #endif
818 }
819
820 return SLJIT_SUCCESS;
821 }
822
sljit_emit_op1(struct sljit_compiler * compiler,sljit_s32 op,sljit_s32 dst,sljit_sw dstw,sljit_s32 src,sljit_sw srcw)823 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_op1(struct sljit_compiler *compiler, sljit_s32 op,
824 sljit_s32 dst, sljit_sw dstw,
825 sljit_s32 src, sljit_sw srcw)
826 {
827 sljit_s32 flags = HAS_FLAGS(op) ? SET_FLAGS : 0;
828
829 CHECK_ERROR();
830 CHECK(check_sljit_emit_op1(compiler, op, dst, dstw, src, srcw));
831 ADJUST_LOCAL_OFFSET(dst, dstw);
832 ADJUST_LOCAL_OFFSET(src, srcw);
833
834 op = GET_OPCODE(op);
835 switch (op) {
836 case SLJIT_MOV:
837 case SLJIT_MOV_P:
838 return emit_op(compiler, SLJIT_MOV, flags | WORD_DATA, dst, dstw, TMP_REG1, 0, src, srcw);
839
840 case SLJIT_MOV_U32:
841 return emit_op(compiler, SLJIT_MOV_U32, flags | INT_DATA, dst, dstw, TMP_REG1, 0, src, srcw);
842
843 case SLJIT_MOV_S32:
844 return emit_op(compiler, SLJIT_MOV_S32, flags | INT_DATA | SIGNED_DATA, dst, dstw, TMP_REG1, 0, src, srcw);
845
846 case SLJIT_MOV_U8:
847 return emit_op(compiler, SLJIT_MOV_U8, flags | BYTE_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_u8)srcw : srcw);
848
849 case SLJIT_MOV_S8:
850 return emit_op(compiler, SLJIT_MOV_S8, flags | BYTE_DATA | SIGNED_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_s8)srcw : srcw);
851
852 case SLJIT_MOV_U16:
853 return emit_op(compiler, SLJIT_MOV_U16, flags | HALF_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_u16)srcw : srcw);
854
855 case SLJIT_MOV_S16:
856 return emit_op(compiler, SLJIT_MOV_S16, flags | HALF_DATA | SIGNED_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_s16)srcw : srcw);
857
858 case SLJIT_MOVU:
859 case SLJIT_MOVU_P:
860 return emit_op(compiler, SLJIT_MOV, flags | WORD_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, srcw);
861
862 case SLJIT_MOVU_U32:
863 return emit_op(compiler, SLJIT_MOV_U32, flags | INT_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, srcw);
864
865 case SLJIT_MOVU_S32:
866 return emit_op(compiler, SLJIT_MOV_S32, flags | INT_DATA | SIGNED_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, srcw);
867
868 case SLJIT_MOVU_U8:
869 return emit_op(compiler, SLJIT_MOV_U8, flags | BYTE_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_u8)srcw : srcw);
870
871 case SLJIT_MOVU_S8:
872 return emit_op(compiler, SLJIT_MOV_S8, flags | BYTE_DATA | SIGNED_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_s8)srcw : srcw);
873
874 case SLJIT_MOVU_U16:
875 return emit_op(compiler, SLJIT_MOV_U16, flags | HALF_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_u16)srcw : srcw);
876
877 case SLJIT_MOVU_S16:
878 return emit_op(compiler, SLJIT_MOV_S16, flags | HALF_DATA | SIGNED_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_s16)srcw : srcw);
879
880 case SLJIT_NOT:
881 case SLJIT_CLZ:
882 return emit_op(compiler, op, flags, dst, dstw, TMP_REG1, 0, src, srcw);
883
884 case SLJIT_NEG:
885 return emit_op(compiler, SLJIT_SUB, flags | IMM_OP, dst, dstw, SLJIT_IMM, 0, src, srcw);
886 }
887
888 return SLJIT_SUCCESS;
889 }
890
sljit_emit_op2(struct sljit_compiler * compiler,sljit_s32 op,sljit_s32 dst,sljit_sw dstw,sljit_s32 src1,sljit_sw src1w,sljit_s32 src2,sljit_sw src2w)891 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_op2(struct sljit_compiler *compiler, sljit_s32 op,
892 sljit_s32 dst, sljit_sw dstw,
893 sljit_s32 src1, sljit_sw src1w,
894 sljit_s32 src2, sljit_sw src2w)
895 {
896 sljit_s32 flags = HAS_FLAGS(op) ? SET_FLAGS : 0;
897
898 CHECK_ERROR();
899 CHECK(check_sljit_emit_op2(compiler, op, dst, dstw, src1, src1w, src2, src2w));
900 ADJUST_LOCAL_OFFSET(dst, dstw);
901 ADJUST_LOCAL_OFFSET(src1, src1w);
902 ADJUST_LOCAL_OFFSET(src2, src2w);
903
904 op = GET_OPCODE(op);
905 switch (op) {
906 case SLJIT_ADD:
907 case SLJIT_ADDC:
908 case SLJIT_MUL:
909 case SLJIT_AND:
910 case SLJIT_OR:
911 case SLJIT_XOR:
912 return emit_op(compiler, op, flags | CUMULATIVE_OP | IMM_OP, dst, dstw, src1, src1w, src2, src2w);
913
914 case SLJIT_SUB:
915 case SLJIT_SUBC:
916 return emit_op(compiler, op, flags | IMM_OP, dst, dstw, src1, src1w, src2, src2w);
917
918 case SLJIT_SHL:
919 case SLJIT_LSHR:
920 case SLJIT_ASHR:
921 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32)
922 if (src2 & SLJIT_IMM)
923 src2w &= 0x1f;
924 #else
925 SLJIT_UNREACHABLE();
926 #endif
927 return emit_op(compiler, op, flags | IMM_OP, dst, dstw, src1, src1w, src2, src2w);
928 }
929
930 return SLJIT_SUCCESS;
931 }
932
sljit_get_register_index(sljit_s32 reg)933 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_get_register_index(sljit_s32 reg)
934 {
935 CHECK_REG_INDEX(check_sljit_get_register_index(reg));
936 return reg_map[reg];
937 }
938
sljit_get_float_register_index(sljit_s32 reg)939 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_get_float_register_index(sljit_s32 reg)
940 {
941 CHECK_REG_INDEX(check_sljit_get_float_register_index(reg));
942 return reg << 1;
943 }
944
sljit_emit_op_custom(struct sljit_compiler * compiler,void * instruction,sljit_s32 size)945 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_op_custom(struct sljit_compiler *compiler,
946 void *instruction, sljit_s32 size)
947 {
948 CHECK_ERROR();
949 CHECK(check_sljit_emit_op_custom(compiler, instruction, size));
950
951 return push_inst(compiler, *(sljit_ins*)instruction, UNMOVABLE_INS);
952 }
953
954 /* --------------------------------------------------------------------- */
955 /* Floating point operators */
956 /* --------------------------------------------------------------------- */
957
sljit_is_fpu_available(void)958 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_is_fpu_available(void)
959 {
960 #ifdef SLJIT_IS_FPU_AVAILABLE
961 return SLJIT_IS_FPU_AVAILABLE;
962 #else
963 /* Available by default. */
964 return 1;
965 #endif
966 }
967
968 #define FLOAT_DATA(op) (DOUBLE_DATA | ((op & SLJIT_F32_OP) >> 7))
969 #define SELECT_FOP(op, single, double) ((op & SLJIT_F32_OP) ? single : double)
970 #define FLOAT_TMP_MEM_OFFSET (22 * sizeof(sljit_sw))
971
sljit_emit_fop1_conv_sw_from_f64(struct sljit_compiler * compiler,sljit_s32 op,sljit_s32 dst,sljit_sw dstw,sljit_s32 src,sljit_sw srcw)972 static SLJIT_INLINE sljit_s32 sljit_emit_fop1_conv_sw_from_f64(struct sljit_compiler *compiler, sljit_s32 op,
973 sljit_s32 dst, sljit_sw dstw,
974 sljit_s32 src, sljit_sw srcw)
975 {
976 if (src & SLJIT_MEM) {
977 FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG1, src, srcw, dst, dstw));
978 src = TMP_FREG1;
979 }
980 else
981 src <<= 1;
982
983 FAIL_IF(push_inst(compiler, SELECT_FOP(op, FSTOI, FDTOI) | DA(TMP_FREG1) | S2A(src), MOVABLE_INS));
984
985 if (dst == SLJIT_UNUSED)
986 return SLJIT_SUCCESS;
987
988 if (FAST_IS_REG(dst)) {
989 FAIL_IF(emit_op_mem2(compiler, SINGLE_DATA, TMP_FREG1, SLJIT_MEM1(SLJIT_SP), FLOAT_TMP_MEM_OFFSET, SLJIT_MEM1(SLJIT_SP), FLOAT_TMP_MEM_OFFSET));
990 return emit_op_mem2(compiler, WORD_DATA | LOAD_DATA, dst, SLJIT_MEM1(SLJIT_SP), FLOAT_TMP_MEM_OFFSET, SLJIT_MEM1(SLJIT_SP), FLOAT_TMP_MEM_OFFSET);
991 }
992
993 /* Store the integer value from a VFP register. */
994 return emit_op_mem2(compiler, SINGLE_DATA, TMP_FREG1, dst, dstw, 0, 0);
995 }
996
sljit_emit_fop1_conv_f64_from_sw(struct sljit_compiler * compiler,sljit_s32 op,sljit_s32 dst,sljit_sw dstw,sljit_s32 src,sljit_sw srcw)997 static SLJIT_INLINE sljit_s32 sljit_emit_fop1_conv_f64_from_sw(struct sljit_compiler *compiler, sljit_s32 op,
998 sljit_s32 dst, sljit_sw dstw,
999 sljit_s32 src, sljit_sw srcw)
1000 {
1001 sljit_s32 dst_r = FAST_IS_REG(dst) ? (dst << 1) : TMP_FREG1;
1002
1003 if (src & SLJIT_IMM) {
1004 #if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64)
1005 if (GET_OPCODE(op) == SLJIT_CONV_F64_FROM_S32)
1006 srcw = (sljit_s32)srcw;
1007 #endif
1008 FAIL_IF(load_immediate(compiler, TMP_REG1, srcw));
1009 src = TMP_REG1;
1010 srcw = 0;
1011 }
1012
1013 if (FAST_IS_REG(src)) {
1014 FAIL_IF(emit_op_mem2(compiler, WORD_DATA, src, SLJIT_MEM1(SLJIT_SP), FLOAT_TMP_MEM_OFFSET, SLJIT_MEM1(SLJIT_SP), FLOAT_TMP_MEM_OFFSET));
1015 src = SLJIT_MEM1(SLJIT_SP);
1016 srcw = FLOAT_TMP_MEM_OFFSET;
1017 }
1018
1019 FAIL_IF(emit_op_mem2(compiler, SINGLE_DATA | LOAD_DATA, TMP_FREG1, src, srcw, dst, dstw));
1020 FAIL_IF(push_inst(compiler, SELECT_FOP(op, FITOS, FITOD) | DA(dst_r) | S2A(TMP_FREG1), MOVABLE_INS));
1021
1022 if (dst & SLJIT_MEM)
1023 return emit_op_mem2(compiler, FLOAT_DATA(op), TMP_FREG1, dst, dstw, 0, 0);
1024 return SLJIT_SUCCESS;
1025 }
1026
sljit_emit_fop1_cmp(struct sljit_compiler * compiler,sljit_s32 op,sljit_s32 src1,sljit_sw src1w,sljit_s32 src2,sljit_sw src2w)1027 static SLJIT_INLINE sljit_s32 sljit_emit_fop1_cmp(struct sljit_compiler *compiler, sljit_s32 op,
1028 sljit_s32 src1, sljit_sw src1w,
1029 sljit_s32 src2, sljit_sw src2w)
1030 {
1031 if (src1 & SLJIT_MEM) {
1032 FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG1, src1, src1w, src2, src2w));
1033 src1 = TMP_FREG1;
1034 }
1035 else
1036 src1 <<= 1;
1037
1038 if (src2 & SLJIT_MEM) {
1039 FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG2, src2, src2w, 0, 0));
1040 src2 = TMP_FREG2;
1041 }
1042 else
1043 src2 <<= 1;
1044
1045 return push_inst(compiler, SELECT_FOP(op, FCMPS, FCMPD) | S1A(src1) | S2A(src2), FCC_IS_SET | MOVABLE_INS);
1046 }
1047
sljit_emit_fop1(struct sljit_compiler * compiler,sljit_s32 op,sljit_s32 dst,sljit_sw dstw,sljit_s32 src,sljit_sw srcw)1048 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_fop1(struct sljit_compiler *compiler, sljit_s32 op,
1049 sljit_s32 dst, sljit_sw dstw,
1050 sljit_s32 src, sljit_sw srcw)
1051 {
1052 sljit_s32 dst_r;
1053
1054 CHECK_ERROR();
1055 compiler->cache_arg = 0;
1056 compiler->cache_argw = 0;
1057
1058 SLJIT_COMPILE_ASSERT((SLJIT_F32_OP == 0x100) && !(DOUBLE_DATA & 0x2), float_transfer_bit_error);
1059 SELECT_FOP1_OPERATION_WITH_CHECKS(compiler, op, dst, dstw, src, srcw);
1060
1061 if (GET_OPCODE(op) == SLJIT_CONV_F64_FROM_F32)
1062 op ^= SLJIT_F32_OP;
1063
1064 dst_r = FAST_IS_REG(dst) ? (dst << 1) : TMP_FREG1;
1065
1066 if (src & SLJIT_MEM) {
1067 FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op) | LOAD_DATA, dst_r, src, srcw, dst, dstw));
1068 src = dst_r;
1069 }
1070 else
1071 src <<= 1;
1072
1073 switch (GET_OPCODE(op)) {
1074 case SLJIT_MOV_F64:
1075 if (src != dst_r) {
1076 if (dst_r != TMP_FREG1) {
1077 FAIL_IF(push_inst(compiler, FMOVS | DA(dst_r) | S2A(src), MOVABLE_INS));
1078 if (!(op & SLJIT_F32_OP))
1079 FAIL_IF(push_inst(compiler, FMOVS | DA(dst_r | 1) | S2A(src | 1), MOVABLE_INS));
1080 }
1081 else
1082 dst_r = src;
1083 }
1084 break;
1085 case SLJIT_NEG_F64:
1086 FAIL_IF(push_inst(compiler, FNEGS | DA(dst_r) | S2A(src), MOVABLE_INS));
1087 if (dst_r != src && !(op & SLJIT_F32_OP))
1088 FAIL_IF(push_inst(compiler, FMOVS | DA(dst_r | 1) | S2A(src | 1), MOVABLE_INS));
1089 break;
1090 case SLJIT_ABS_F64:
1091 FAIL_IF(push_inst(compiler, FABSS | DA(dst_r) | S2A(src), MOVABLE_INS));
1092 if (dst_r != src && !(op & SLJIT_F32_OP))
1093 FAIL_IF(push_inst(compiler, FMOVS | DA(dst_r | 1) | S2A(src | 1), MOVABLE_INS));
1094 break;
1095 case SLJIT_CONV_F64_FROM_F32:
1096 FAIL_IF(push_inst(compiler, SELECT_FOP(op, FSTOD, FDTOS) | DA(dst_r) | S2A(src), MOVABLE_INS));
1097 op ^= SLJIT_F32_OP;
1098 break;
1099 }
1100
1101 if (dst & SLJIT_MEM)
1102 FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op), dst_r, dst, dstw, 0, 0));
1103 return SLJIT_SUCCESS;
1104 }
1105
sljit_emit_fop2(struct sljit_compiler * compiler,sljit_s32 op,sljit_s32 dst,sljit_sw dstw,sljit_s32 src1,sljit_sw src1w,sljit_s32 src2,sljit_sw src2w)1106 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_fop2(struct sljit_compiler *compiler, sljit_s32 op,
1107 sljit_s32 dst, sljit_sw dstw,
1108 sljit_s32 src1, sljit_sw src1w,
1109 sljit_s32 src2, sljit_sw src2w)
1110 {
1111 sljit_s32 dst_r, flags = 0;
1112
1113 CHECK_ERROR();
1114 CHECK(check_sljit_emit_fop2(compiler, op, dst, dstw, src1, src1w, src2, src2w));
1115 ADJUST_LOCAL_OFFSET(dst, dstw);
1116 ADJUST_LOCAL_OFFSET(src1, src1w);
1117 ADJUST_LOCAL_OFFSET(src2, src2w);
1118
1119 compiler->cache_arg = 0;
1120 compiler->cache_argw = 0;
1121
1122 dst_r = FAST_IS_REG(dst) ? (dst << 1) : TMP_FREG2;
1123
1124 if (src1 & SLJIT_MEM) {
1125 if (getput_arg_fast(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG1, src1, src1w)) {
1126 FAIL_IF(compiler->error);
1127 src1 = TMP_FREG1;
1128 } else
1129 flags |= SLOW_SRC1;
1130 }
1131 else
1132 src1 <<= 1;
1133
1134 if (src2 & SLJIT_MEM) {
1135 if (getput_arg_fast(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG2, src2, src2w)) {
1136 FAIL_IF(compiler->error);
1137 src2 = TMP_FREG2;
1138 } else
1139 flags |= SLOW_SRC2;
1140 }
1141 else
1142 src2 <<= 1;
1143
1144 if ((flags & (SLOW_SRC1 | SLOW_SRC2)) == (SLOW_SRC1 | SLOW_SRC2)) {
1145 if (!can_cache(src1, src1w, src2, src2w) && can_cache(src1, src1w, dst, dstw)) {
1146 FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG2, src2, src2w, src1, src1w));
1147 FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG1, src1, src1w, dst, dstw));
1148 }
1149 else {
1150 FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG1, src1, src1w, src2, src2w));
1151 FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG2, src2, src2w, dst, dstw));
1152 }
1153 }
1154 else if (flags & SLOW_SRC1)
1155 FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG1, src1, src1w, dst, dstw));
1156 else if (flags & SLOW_SRC2)
1157 FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG2, src2, src2w, dst, dstw));
1158
1159 if (flags & SLOW_SRC1)
1160 src1 = TMP_FREG1;
1161 if (flags & SLOW_SRC2)
1162 src2 = TMP_FREG2;
1163
1164 switch (GET_OPCODE(op)) {
1165 case SLJIT_ADD_F64:
1166 FAIL_IF(push_inst(compiler, SELECT_FOP(op, FADDS, FADDD) | DA(dst_r) | S1A(src1) | S2A(src2), MOVABLE_INS));
1167 break;
1168
1169 case SLJIT_SUB_F64:
1170 FAIL_IF(push_inst(compiler, SELECT_FOP(op, FSUBS, FSUBD) | DA(dst_r) | S1A(src1) | S2A(src2), MOVABLE_INS));
1171 break;
1172
1173 case SLJIT_MUL_F64:
1174 FAIL_IF(push_inst(compiler, SELECT_FOP(op, FMULS, FMULD) | DA(dst_r) | S1A(src1) | S2A(src2), MOVABLE_INS));
1175 break;
1176
1177 case SLJIT_DIV_F64:
1178 FAIL_IF(push_inst(compiler, SELECT_FOP(op, FDIVS, FDIVD) | DA(dst_r) | S1A(src1) | S2A(src2), MOVABLE_INS));
1179 break;
1180 }
1181
1182 if (dst_r == TMP_FREG2)
1183 FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op), TMP_FREG2, dst, dstw, 0, 0));
1184
1185 return SLJIT_SUCCESS;
1186 }
1187
1188 #undef FLOAT_DATA
1189 #undef SELECT_FOP
1190
1191 /* --------------------------------------------------------------------- */
1192 /* Other instructions */
1193 /* --------------------------------------------------------------------- */
1194
sljit_emit_fast_enter(struct sljit_compiler * compiler,sljit_s32 dst,sljit_sw dstw)1195 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_fast_enter(struct sljit_compiler *compiler, sljit_s32 dst, sljit_sw dstw)
1196 {
1197 CHECK_ERROR();
1198 CHECK(check_sljit_emit_fast_enter(compiler, dst, dstw));
1199 ADJUST_LOCAL_OFFSET(dst, dstw);
1200
1201 /* For UNUSED dst. Uncommon, but possible. */
1202 if (dst == SLJIT_UNUSED)
1203 return SLJIT_SUCCESS;
1204
1205 if (FAST_IS_REG(dst))
1206 return push_inst(compiler, OR | D(dst) | S1(0) | S2(TMP_LINK), DR(dst));
1207
1208 /* Memory. */
1209 return emit_op_mem(compiler, WORD_DATA, TMP_LINK, dst, dstw);
1210 }
1211
sljit_emit_fast_return(struct sljit_compiler * compiler,sljit_s32 src,sljit_sw srcw)1212 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_fast_return(struct sljit_compiler *compiler, sljit_s32 src, sljit_sw srcw)
1213 {
1214 CHECK_ERROR();
1215 CHECK(check_sljit_emit_fast_return(compiler, src, srcw));
1216 ADJUST_LOCAL_OFFSET(src, srcw);
1217
1218 if (FAST_IS_REG(src))
1219 FAIL_IF(push_inst(compiler, OR | D(TMP_LINK) | S1(0) | S2(src), DR(TMP_LINK)));
1220 else if (src & SLJIT_MEM)
1221 FAIL_IF(emit_op_mem(compiler, WORD_DATA | LOAD_DATA, TMP_LINK, src, srcw));
1222 else if (src & SLJIT_IMM)
1223 FAIL_IF(load_immediate(compiler, TMP_LINK, srcw));
1224
1225 FAIL_IF(push_inst(compiler, JMPL | D(0) | S1(TMP_LINK) | IMM(8), UNMOVABLE_INS));
1226 return push_inst(compiler, NOP, UNMOVABLE_INS);
1227 }
1228
1229 /* --------------------------------------------------------------------- */
1230 /* Conditional instructions */
1231 /* --------------------------------------------------------------------- */
1232
sljit_emit_label(struct sljit_compiler * compiler)1233 SLJIT_API_FUNC_ATTRIBUTE struct sljit_label* sljit_emit_label(struct sljit_compiler *compiler)
1234 {
1235 struct sljit_label *label;
1236
1237 CHECK_ERROR_PTR();
1238 CHECK_PTR(check_sljit_emit_label(compiler));
1239
1240 if (compiler->last_label && compiler->last_label->size == compiler->size)
1241 return compiler->last_label;
1242
1243 label = (struct sljit_label*)ensure_abuf(compiler, sizeof(struct sljit_label));
1244 PTR_FAIL_IF(!label);
1245 set_label(label, compiler);
1246 compiler->delay_slot = UNMOVABLE_INS;
1247 return label;
1248 }
1249
get_cc(sljit_s32 type)1250 static sljit_ins get_cc(sljit_s32 type)
1251 {
1252 switch (type) {
1253 case SLJIT_EQUAL:
1254 case SLJIT_MUL_NOT_OVERFLOW:
1255 case SLJIT_NOT_EQUAL_F64: /* Unordered. */
1256 return DA(0x1);
1257
1258 case SLJIT_NOT_EQUAL:
1259 case SLJIT_MUL_OVERFLOW:
1260 case SLJIT_EQUAL_F64:
1261 return DA(0x9);
1262
1263 case SLJIT_LESS:
1264 case SLJIT_GREATER_F64: /* Unordered. */
1265 return DA(0x5);
1266
1267 case SLJIT_GREATER_EQUAL:
1268 case SLJIT_LESS_EQUAL_F64:
1269 return DA(0xd);
1270
1271 case SLJIT_GREATER:
1272 case SLJIT_GREATER_EQUAL_F64: /* Unordered. */
1273 return DA(0xc);
1274
1275 case SLJIT_LESS_EQUAL:
1276 case SLJIT_LESS_F64:
1277 return DA(0x4);
1278
1279 case SLJIT_SIG_LESS:
1280 return DA(0x3);
1281
1282 case SLJIT_SIG_GREATER_EQUAL:
1283 return DA(0xb);
1284
1285 case SLJIT_SIG_GREATER:
1286 return DA(0xa);
1287
1288 case SLJIT_SIG_LESS_EQUAL:
1289 return DA(0x2);
1290
1291 case SLJIT_OVERFLOW:
1292 case SLJIT_UNORDERED_F64:
1293 return DA(0x7);
1294
1295 case SLJIT_NOT_OVERFLOW:
1296 case SLJIT_ORDERED_F64:
1297 return DA(0xf);
1298
1299 default:
1300 SLJIT_UNREACHABLE();
1301 return DA(0x8);
1302 }
1303 }
1304
sljit_emit_jump(struct sljit_compiler * compiler,sljit_s32 type)1305 SLJIT_API_FUNC_ATTRIBUTE struct sljit_jump* sljit_emit_jump(struct sljit_compiler *compiler, sljit_s32 type)
1306 {
1307 struct sljit_jump *jump;
1308
1309 CHECK_ERROR_PTR();
1310 CHECK_PTR(check_sljit_emit_jump(compiler, type));
1311
1312 jump = (struct sljit_jump*)ensure_abuf(compiler, sizeof(struct sljit_jump));
1313 PTR_FAIL_IF(!jump);
1314 set_jump(jump, compiler, type & SLJIT_REWRITABLE_JUMP);
1315 type &= 0xff;
1316
1317 if (type < SLJIT_EQUAL_F64) {
1318 jump->flags |= IS_COND;
1319 if (((compiler->delay_slot & DST_INS_MASK) != UNMOVABLE_INS) && !(compiler->delay_slot & ICC_IS_SET))
1320 jump->flags |= IS_MOVABLE;
1321 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32)
1322 PTR_FAIL_IF(push_inst(compiler, BICC | get_cc(type ^ 1) | 5, UNMOVABLE_INS));
1323 #else
1324 #error "Implementation required"
1325 #endif
1326 }
1327 else if (type < SLJIT_JUMP) {
1328 jump->flags |= IS_COND;
1329 if (((compiler->delay_slot & DST_INS_MASK) != UNMOVABLE_INS) && !(compiler->delay_slot & FCC_IS_SET))
1330 jump->flags |= IS_MOVABLE;
1331 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32)
1332 PTR_FAIL_IF(push_inst(compiler, FBFCC | get_cc(type ^ 1) | 5, UNMOVABLE_INS));
1333 #else
1334 #error "Implementation required"
1335 #endif
1336 } else {
1337 if ((compiler->delay_slot & DST_INS_MASK) != UNMOVABLE_INS)
1338 jump->flags |= IS_MOVABLE;
1339 if (type >= SLJIT_FAST_CALL)
1340 jump->flags |= IS_CALL;
1341 }
1342
1343 PTR_FAIL_IF(emit_const(compiler, TMP_REG2, 0));
1344 PTR_FAIL_IF(push_inst(compiler, JMPL | D(type >= SLJIT_FAST_CALL ? TMP_LINK : 0) | S1(TMP_REG2) | IMM(0), UNMOVABLE_INS));
1345 jump->addr = compiler->size;
1346 PTR_FAIL_IF(push_inst(compiler, NOP, UNMOVABLE_INS));
1347
1348 return jump;
1349 }
1350
sljit_emit_ijump(struct sljit_compiler * compiler,sljit_s32 type,sljit_s32 src,sljit_sw srcw)1351 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_ijump(struct sljit_compiler *compiler, sljit_s32 type, sljit_s32 src, sljit_sw srcw)
1352 {
1353 struct sljit_jump *jump = NULL;
1354 sljit_s32 src_r;
1355
1356 CHECK_ERROR();
1357 CHECK(check_sljit_emit_ijump(compiler, type, src, srcw));
1358 ADJUST_LOCAL_OFFSET(src, srcw);
1359
1360 if (FAST_IS_REG(src))
1361 src_r = src;
1362 else if (src & SLJIT_IMM) {
1363 jump = (struct sljit_jump*)ensure_abuf(compiler, sizeof(struct sljit_jump));
1364 FAIL_IF(!jump);
1365 set_jump(jump, compiler, JUMP_ADDR);
1366 jump->u.target = srcw;
1367 if ((compiler->delay_slot & DST_INS_MASK) != UNMOVABLE_INS)
1368 jump->flags |= IS_MOVABLE;
1369 if (type >= SLJIT_FAST_CALL)
1370 jump->flags |= IS_CALL;
1371
1372 FAIL_IF(emit_const(compiler, TMP_REG2, 0));
1373 src_r = TMP_REG2;
1374 }
1375 else {
1376 FAIL_IF(emit_op_mem(compiler, WORD_DATA | LOAD_DATA, TMP_REG2, src, srcw));
1377 src_r = TMP_REG2;
1378 }
1379
1380 FAIL_IF(push_inst(compiler, JMPL | D(type >= SLJIT_FAST_CALL ? TMP_LINK : 0) | S1(src_r) | IMM(0), UNMOVABLE_INS));
1381 if (jump)
1382 jump->addr = compiler->size;
1383 return push_inst(compiler, NOP, UNMOVABLE_INS);
1384 }
1385
sljit_emit_op_flags(struct sljit_compiler * compiler,sljit_s32 op,sljit_s32 dst,sljit_sw dstw,sljit_s32 src,sljit_sw srcw,sljit_s32 type)1386 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_op_flags(struct sljit_compiler *compiler, sljit_s32 op,
1387 sljit_s32 dst, sljit_sw dstw,
1388 sljit_s32 src, sljit_sw srcw,
1389 sljit_s32 type)
1390 {
1391 sljit_s32 reg, flags = HAS_FLAGS(op) ? SET_FLAGS : 0;
1392
1393 CHECK_ERROR();
1394 CHECK(check_sljit_emit_op_flags(compiler, op, dst, dstw, src, srcw, type));
1395 ADJUST_LOCAL_OFFSET(dst, dstw);
1396
1397 if (dst == SLJIT_UNUSED)
1398 return SLJIT_SUCCESS;
1399
1400 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32)
1401 op = GET_OPCODE(op);
1402 reg = (op < SLJIT_ADD && FAST_IS_REG(dst)) ? dst : TMP_REG2;
1403
1404 compiler->cache_arg = 0;
1405 compiler->cache_argw = 0;
1406 if (op >= SLJIT_ADD && (src & SLJIT_MEM)) {
1407 ADJUST_LOCAL_OFFSET(src, srcw);
1408 FAIL_IF(emit_op_mem2(compiler, WORD_DATA | LOAD_DATA, TMP_REG1, src, srcw, dst, dstw));
1409 src = TMP_REG1;
1410 srcw = 0;
1411 }
1412
1413 type &= 0xff;
1414 if (type < SLJIT_EQUAL_F64)
1415 FAIL_IF(push_inst(compiler, BICC | get_cc(type) | 3, UNMOVABLE_INS));
1416 else
1417 FAIL_IF(push_inst(compiler, FBFCC | get_cc(type) | 3, UNMOVABLE_INS));
1418
1419 FAIL_IF(push_inst(compiler, OR | D(reg) | S1(0) | IMM(1), UNMOVABLE_INS));
1420 FAIL_IF(push_inst(compiler, OR | D(reg) | S1(0) | IMM(0), UNMOVABLE_INS));
1421
1422 if (op >= SLJIT_ADD)
1423 return emit_op(compiler, op, flags | CUMULATIVE_OP | IMM_OP | ALT_KEEP_CACHE, dst, dstw, src, srcw, TMP_REG2, 0);
1424
1425 return (reg == TMP_REG2) ? emit_op_mem(compiler, WORD_DATA, TMP_REG2, dst, dstw) : SLJIT_SUCCESS;
1426 #else
1427 #error "Implementation required"
1428 #endif
1429 }
1430
sljit_emit_const(struct sljit_compiler * compiler,sljit_s32 dst,sljit_sw dstw,sljit_sw init_value)1431 SLJIT_API_FUNC_ATTRIBUTE struct sljit_const* sljit_emit_const(struct sljit_compiler *compiler, sljit_s32 dst, sljit_sw dstw, sljit_sw init_value)
1432 {
1433 sljit_s32 reg;
1434 struct sljit_const *const_;
1435
1436 CHECK_ERROR_PTR();
1437 CHECK_PTR(check_sljit_emit_const(compiler, dst, dstw, init_value));
1438 ADJUST_LOCAL_OFFSET(dst, dstw);
1439
1440 const_ = (struct sljit_const*)ensure_abuf(compiler, sizeof(struct sljit_const));
1441 PTR_FAIL_IF(!const_);
1442 set_const(const_, compiler);
1443
1444 reg = SLOW_IS_REG(dst) ? dst : TMP_REG2;
1445
1446 PTR_FAIL_IF(emit_const(compiler, reg, init_value));
1447
1448 if (dst & SLJIT_MEM)
1449 PTR_FAIL_IF(emit_op_mem(compiler, WORD_DATA, TMP_REG2, dst, dstw));
1450 return const_;
1451 }
1452