1 /*
2 * Stack-less Just-In-Time compiler
3 *
4 * Copyright Zoltan Herczeg (hzmester@freemail.hu). All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without modification, are
7 * permitted provided that the following conditions are met:
8 *
9 * 1. Redistributions of source code must retain the above copyright notice, this list of
10 * conditions and the following disclaimer.
11 *
12 * 2. Redistributions in binary form must reproduce the above copyright notice, this list
13 * of conditions and the following disclaimer in the documentation and/or other materials
14 * provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) AND CONTRIBUTORS ``AS IS'' AND ANY
17 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
19 * SHALL THE COPYRIGHT HOLDER(S) OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
21 * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
22 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
23 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
24 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27 /* Latest MIPS architecture. */
28 /* Automatically detect SLJIT_MIPS_R1 */
29
sljit_get_platform_name(void)30 SLJIT_API_FUNC_ATTRIBUTE const char* sljit_get_platform_name(void)
31 {
32 #if (defined SLJIT_MIPS_R1 && SLJIT_MIPS_R1)
33 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
34 return "MIPS32-R1" SLJIT_CPUINFO;
35 #else
36 return "MIPS64-R1" SLJIT_CPUINFO;
37 #endif
38 #else /* SLJIT_MIPS_R1 */
39 return "MIPS III" SLJIT_CPUINFO;
40 #endif
41 }
42
43 /* Length of an instruction word
44 Both for mips-32 and mips-64 */
45 typedef sljit_u32 sljit_ins;
46
47 #define TMP_REG1 (SLJIT_NUMBER_OF_REGISTERS + 2)
48 #define TMP_REG2 (SLJIT_NUMBER_OF_REGISTERS + 3)
49 #define TMP_REG3 (SLJIT_NUMBER_OF_REGISTERS + 4)
50
51 /* For position independent code, t9 must contain the function address. */
52 #define PIC_ADDR_REG TMP_REG2
53
54 /* Floating point status register. */
55 #define FCSR_REG 31
56 /* Return address register. */
57 #define RETURN_ADDR_REG 31
58
59 /* Flags are kept in volatile registers. */
60 #define EQUAL_FLAG 3
61 #define OTHER_FLAG 1
62
63 #define TMP_FREG1 (SLJIT_NUMBER_OF_FLOAT_REGISTERS + 1)
64 #define TMP_FREG2 (SLJIT_NUMBER_OF_FLOAT_REGISTERS + 2)
65
66 static const sljit_u8 reg_map[SLJIT_NUMBER_OF_REGISTERS + 5] = {
67 0, 2, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 24, 23, 22, 21, 20, 19, 18, 17, 16, 29, 4, 25, 31
68 };
69
70 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
71
72 static const sljit_u8 freg_map[SLJIT_NUMBER_OF_FLOAT_REGISTERS + 3] = {
73 0, 0, 14, 2, 4, 6, 8, 12, 10
74 };
75
76 #else
77
78 static const sljit_u8 freg_map[SLJIT_NUMBER_OF_FLOAT_REGISTERS + 3] = {
79 0, 0, 13, 14, 15, 16, 17, 12, 18
80 };
81
82 #endif
83
84 /* --------------------------------------------------------------------- */
85 /* Instrucion forms */
86 /* --------------------------------------------------------------------- */
87
88 #define S(s) (reg_map[s] << 21)
89 #define T(t) (reg_map[t] << 16)
90 #define D(d) (reg_map[d] << 11)
91 #define FT(t) (freg_map[t] << 16)
92 #define FS(s) (freg_map[s] << 11)
93 #define FD(d) (freg_map[d] << 6)
94 /* Absolute registers. */
95 #define SA(s) ((s) << 21)
96 #define TA(t) ((t) << 16)
97 #define DA(d) ((d) << 11)
98 #define IMM(imm) ((imm) & 0xffff)
99 #define SH_IMM(imm) ((imm) << 6)
100
101 #define DR(dr) (reg_map[dr])
102 #define FR(dr) (freg_map[dr])
103 #define HI(opcode) ((opcode) << 26)
104 #define LO(opcode) (opcode)
105 /* S = (16 << 21) D = (17 << 21) */
106 #define FMT_S (16 << 21)
107 #define FMT_D (17 << 21)
108
109 #define ABS_S (HI(17) | FMT_S | LO(5))
110 #define ADD_S (HI(17) | FMT_S | LO(0))
111 #define ADDIU (HI(9))
112 #define ADDU (HI(0) | LO(33))
113 #define AND (HI(0) | LO(36))
114 #define ANDI (HI(12))
115 #define B (HI(4))
116 #define BAL (HI(1) | (17 << 16))
117 #define BC1F (HI(17) | (8 << 21))
118 #define BC1T (HI(17) | (8 << 21) | (1 << 16))
119 #define BEQ (HI(4))
120 #define BGEZ (HI(1) | (1 << 16))
121 #define BGTZ (HI(7))
122 #define BLEZ (HI(6))
123 #define BLTZ (HI(1) | (0 << 16))
124 #define BNE (HI(5))
125 #define BREAK (HI(0) | LO(13))
126 #define CFC1 (HI(17) | (2 << 21))
127 #define C_UN_S (HI(17) | FMT_S | LO(49))
128 #define C_UEQ_S (HI(17) | FMT_S | LO(51))
129 #define C_ULE_S (HI(17) | FMT_S | LO(55))
130 #define C_ULT_S (HI(17) | FMT_S | LO(53))
131 #define CVT_S_S (HI(17) | FMT_S | LO(32))
132 #define DADDIU (HI(25))
133 #define DADDU (HI(0) | LO(45))
134 #define DDIV (HI(0) | LO(30))
135 #define DDIVU (HI(0) | LO(31))
136 #define DIV (HI(0) | LO(26))
137 #define DIVU (HI(0) | LO(27))
138 #define DIV_S (HI(17) | FMT_S | LO(3))
139 #define DMULT (HI(0) | LO(28))
140 #define DMULTU (HI(0) | LO(29))
141 #define DSLL (HI(0) | LO(56))
142 #define DSLL32 (HI(0) | LO(60))
143 #define DSLLV (HI(0) | LO(20))
144 #define DSRA (HI(0) | LO(59))
145 #define DSRA32 (HI(0) | LO(63))
146 #define DSRAV (HI(0) | LO(23))
147 #define DSRL (HI(0) | LO(58))
148 #define DSRL32 (HI(0) | LO(62))
149 #define DSRLV (HI(0) | LO(22))
150 #define DSUBU (HI(0) | LO(47))
151 #define J (HI(2))
152 #define JAL (HI(3))
153 #define JALR (HI(0) | LO(9))
154 #define JR (HI(0) | LO(8))
155 #define LD (HI(55))
156 #define LUI (HI(15))
157 #define LW (HI(35))
158 #define MFC1 (HI(17))
159 #define MFHI (HI(0) | LO(16))
160 #define MFLO (HI(0) | LO(18))
161 #define MOV_S (HI(17) | FMT_S | LO(6))
162 #define MTC1 (HI(17) | (4 << 21))
163 #define MUL_S (HI(17) | FMT_S | LO(2))
164 #define MULT (HI(0) | LO(24))
165 #define MULTU (HI(0) | LO(25))
166 #define NEG_S (HI(17) | FMT_S | LO(7))
167 #define NOP (HI(0) | LO(0))
168 #define NOR (HI(0) | LO(39))
169 #define OR (HI(0) | LO(37))
170 #define ORI (HI(13))
171 #define SD (HI(63))
172 #define SDC1 (HI(61))
173 #define SLT (HI(0) | LO(42))
174 #define SLTI (HI(10))
175 #define SLTIU (HI(11))
176 #define SLTU (HI(0) | LO(43))
177 #define SLL (HI(0) | LO(0))
178 #define SLLV (HI(0) | LO(4))
179 #define SRL (HI(0) | LO(2))
180 #define SRLV (HI(0) | LO(6))
181 #define SRA (HI(0) | LO(3))
182 #define SRAV (HI(0) | LO(7))
183 #define SUB_S (HI(17) | FMT_S | LO(1))
184 #define SUBU (HI(0) | LO(35))
185 #define SW (HI(43))
186 #define SWC1 (HI(57))
187 #define TRUNC_W_S (HI(17) | FMT_S | LO(13))
188 #define XOR (HI(0) | LO(38))
189 #define XORI (HI(14))
190
191 #if (defined SLJIT_MIPS_R1 && SLJIT_MIPS_R1)
192 #define CLZ (HI(28) | LO(32))
193 #define DCLZ (HI(28) | LO(36))
194 #define MOVF (HI(0) | (0 << 16) | LO(1))
195 #define MOVN (HI(0) | LO(11))
196 #define MOVT (HI(0) | (1 << 16) | LO(1))
197 #define MOVZ (HI(0) | LO(10))
198 #define MUL (HI(28) | LO(2))
199 #define PREF (HI(51))
200 #define PREFX (HI(19) | LO(15))
201 #define SEB (HI(31) | (16 << 6) | LO(32))
202 #define SEH (HI(31) | (24 << 6) | LO(32))
203 #endif
204
205 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
206 #define ADDU_W ADDU
207 #define ADDIU_W ADDIU
208 #define SLL_W SLL
209 #define SUBU_W SUBU
210 #else
211 #define ADDU_W DADDU
212 #define ADDIU_W DADDIU
213 #define SLL_W DSLL
214 #define SUBU_W DSUBU
215 #endif
216
217 #define SIMM_MAX (0x7fff)
218 #define SIMM_MIN (-0x8000)
219 #define UIMM_MAX (0xffff)
220
221 /* dest_reg is the absolute name of the register
222 Useful for reordering instructions in the delay slot. */
push_inst(struct sljit_compiler * compiler,sljit_ins ins,sljit_s32 delay_slot)223 static sljit_s32 push_inst(struct sljit_compiler *compiler, sljit_ins ins, sljit_s32 delay_slot)
224 {
225 SLJIT_ASSERT(delay_slot == MOVABLE_INS || delay_slot >= UNMOVABLE_INS
226 || delay_slot == ((ins >> 11) & 0x1f) || delay_slot == ((ins >> 16) & 0x1f));
227 sljit_ins *ptr = (sljit_ins*)ensure_buf(compiler, sizeof(sljit_ins));
228 FAIL_IF(!ptr);
229 *ptr = ins;
230 compiler->size++;
231 compiler->delay_slot = delay_slot;
232 return SLJIT_SUCCESS;
233 }
234
invert_branch(sljit_s32 flags)235 static SLJIT_INLINE sljit_ins invert_branch(sljit_s32 flags)
236 {
237 return (flags & IS_BIT26_COND) ? (1 << 26) : (1 << 16);
238 }
239
detect_jump_type(struct sljit_jump * jump,sljit_ins * code_ptr,sljit_ins * code,sljit_sw executable_offset)240 static SLJIT_INLINE sljit_ins* detect_jump_type(struct sljit_jump *jump, sljit_ins *code_ptr, sljit_ins *code, sljit_sw executable_offset)
241 {
242 sljit_sw diff;
243 sljit_uw target_addr;
244 sljit_ins *inst;
245 sljit_ins saved_inst;
246
247 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
248 if (jump->flags & (SLJIT_REWRITABLE_JUMP | IS_CALL))
249 return code_ptr;
250 #else
251 if (jump->flags & SLJIT_REWRITABLE_JUMP)
252 return code_ptr;
253 #endif
254
255 if (jump->flags & JUMP_ADDR)
256 target_addr = jump->u.target;
257 else {
258 SLJIT_ASSERT(jump->flags & JUMP_LABEL);
259 target_addr = (sljit_uw)(code + jump->u.label->size) + (sljit_uw)executable_offset;
260 }
261
262 inst = (sljit_ins *)jump->addr;
263 if (jump->flags & IS_COND)
264 inst--;
265
266 #if (defined SLJIT_CONFIG_MIPS_64 && SLJIT_CONFIG_MIPS_64)
267 if (jump->flags & IS_CALL)
268 goto keep_address;
269 #endif
270
271 /* B instructions. */
272 if (jump->flags & IS_MOVABLE) {
273 diff = ((sljit_sw)target_addr - (sljit_sw)inst - executable_offset) >> 2;
274 if (diff <= SIMM_MAX && diff >= SIMM_MIN) {
275 jump->flags |= PATCH_B;
276
277 if (!(jump->flags & IS_COND)) {
278 inst[0] = inst[-1];
279 inst[-1] = (jump->flags & IS_JAL) ? BAL : B;
280 jump->addr -= sizeof(sljit_ins);
281 return inst;
282 }
283 saved_inst = inst[0];
284 inst[0] = inst[-1];
285 inst[-1] = saved_inst ^ invert_branch(jump->flags);
286 jump->addr -= 2 * sizeof(sljit_ins);
287 return inst;
288 }
289 }
290 else {
291 diff = ((sljit_sw)target_addr - (sljit_sw)(inst + 1) - executable_offset) >> 2;
292 if (diff <= SIMM_MAX && diff >= SIMM_MIN) {
293 jump->flags |= PATCH_B;
294
295 if (!(jump->flags & IS_COND)) {
296 inst[0] = (jump->flags & IS_JAL) ? BAL : B;
297 inst[1] = NOP;
298 return inst + 1;
299 }
300 inst[0] = inst[0] ^ invert_branch(jump->flags);
301 inst[1] = NOP;
302 jump->addr -= sizeof(sljit_ins);
303 return inst + 1;
304 }
305 }
306
307 if (jump->flags & IS_COND) {
308 if ((jump->flags & IS_MOVABLE) && (target_addr & ~0xfffffff) == ((jump->addr + 2 * sizeof(sljit_ins)) & ~0xfffffff)) {
309 jump->flags |= PATCH_J;
310 saved_inst = inst[0];
311 inst[0] = inst[-1];
312 inst[-1] = (saved_inst & 0xffff0000) | 3;
313 inst[1] = J;
314 inst[2] = NOP;
315 return inst + 2;
316 }
317 else if ((target_addr & ~0xfffffff) == ((jump->addr + 3 * sizeof(sljit_ins)) & ~0xfffffff)) {
318 jump->flags |= PATCH_J;
319 inst[0] = (inst[0] & 0xffff0000) | 3;
320 inst[1] = NOP;
321 inst[2] = J;
322 inst[3] = NOP;
323 jump->addr += sizeof(sljit_ins);
324 return inst + 3;
325 }
326 }
327 else {
328 /* J instuctions. */
329 if ((jump->flags & IS_MOVABLE) && (target_addr & ~0xfffffff) == (jump->addr & ~0xfffffff)) {
330 jump->flags |= PATCH_J;
331 inst[0] = inst[-1];
332 inst[-1] = (jump->flags & IS_JAL) ? JAL : J;
333 jump->addr -= sizeof(sljit_ins);
334 return inst;
335 }
336
337 if ((target_addr & ~0xfffffff) == ((jump->addr + sizeof(sljit_ins)) & ~0xfffffff)) {
338 jump->flags |= PATCH_J;
339 inst[0] = (jump->flags & IS_JAL) ? JAL : J;
340 inst[1] = NOP;
341 return inst + 1;
342 }
343 }
344
345 #if (defined SLJIT_CONFIG_MIPS_64 && SLJIT_CONFIG_MIPS_64)
346 keep_address:
347 if (target_addr <= 0x7fffffff) {
348 jump->flags |= PATCH_ABS32;
349 if (jump->flags & IS_COND) {
350 inst[0] -= 4;
351 inst++;
352 }
353 inst[2] = inst[6];
354 inst[3] = inst[7];
355 return inst + 3;
356 }
357 if (target_addr <= 0x7fffffffffffl) {
358 jump->flags |= PATCH_ABS48;
359 if (jump->flags & IS_COND) {
360 inst[0] -= 2;
361 inst++;
362 }
363 inst[4] = inst[6];
364 inst[5] = inst[7];
365 return inst + 5;
366 }
367 #endif
368
369 return code_ptr;
370 }
371
372 #ifdef __GNUC__
sljit_cache_flush(void * code,void * code_ptr)373 static __attribute__ ((noinline)) void sljit_cache_flush(void* code, void* code_ptr)
374 {
375 SLJIT_CACHE_FLUSH(code, code_ptr);
376 }
377 #endif
378
sljit_generate_code(struct sljit_compiler * compiler)379 SLJIT_API_FUNC_ATTRIBUTE void* sljit_generate_code(struct sljit_compiler *compiler)
380 {
381 struct sljit_memory_fragment *buf;
382 sljit_ins *code;
383 sljit_ins *code_ptr;
384 sljit_ins *buf_ptr;
385 sljit_ins *buf_end;
386 sljit_uw word_count;
387 sljit_sw executable_offset;
388 sljit_uw addr;
389
390 struct sljit_label *label;
391 struct sljit_jump *jump;
392 struct sljit_const *const_;
393
394 CHECK_ERROR_PTR();
395 CHECK_PTR(check_sljit_generate_code(compiler));
396 reverse_buf(compiler);
397
398 code = (sljit_ins*)SLJIT_MALLOC_EXEC(compiler->size * sizeof(sljit_ins));
399 PTR_FAIL_WITH_EXEC_IF(code);
400 buf = compiler->buf;
401
402 code_ptr = code;
403 word_count = 0;
404 executable_offset = SLJIT_EXEC_OFFSET(code);
405
406 label = compiler->labels;
407 jump = compiler->jumps;
408 const_ = compiler->consts;
409
410 do {
411 buf_ptr = (sljit_ins*)buf->memory;
412 buf_end = buf_ptr + (buf->used_size >> 2);
413 do {
414 *code_ptr = *buf_ptr++;
415 SLJIT_ASSERT(!label || label->size >= word_count);
416 SLJIT_ASSERT(!jump || jump->addr >= word_count);
417 SLJIT_ASSERT(!const_ || const_->addr >= word_count);
418 /* These structures are ordered by their address. */
419 if (label && label->size == word_count) {
420 label->addr = (sljit_uw)SLJIT_ADD_EXEC_OFFSET(code_ptr, executable_offset);
421 label->size = code_ptr - code;
422 label = label->next;
423 }
424 if (jump && jump->addr == word_count) {
425 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
426 jump->addr = (sljit_uw)(code_ptr - 3);
427 #else
428 jump->addr = (sljit_uw)(code_ptr - 7);
429 #endif
430 code_ptr = detect_jump_type(jump, code_ptr, code, executable_offset);
431 jump = jump->next;
432 }
433 if (const_ && const_->addr == word_count) {
434 /* Just recording the address. */
435 const_->addr = (sljit_uw)code_ptr;
436 const_ = const_->next;
437 }
438 code_ptr ++;
439 word_count ++;
440 } while (buf_ptr < buf_end);
441
442 buf = buf->next;
443 } while (buf);
444
445 if (label && label->size == word_count) {
446 label->addr = (sljit_uw)code_ptr;
447 label->size = code_ptr - code;
448 label = label->next;
449 }
450
451 SLJIT_ASSERT(!label);
452 SLJIT_ASSERT(!jump);
453 SLJIT_ASSERT(!const_);
454 SLJIT_ASSERT(code_ptr - code <= (sljit_sw)compiler->size);
455
456 jump = compiler->jumps;
457 while (jump) {
458 do {
459 addr = (jump->flags & JUMP_LABEL) ? jump->u.label->addr : jump->u.target;
460 buf_ptr = (sljit_ins *)jump->addr;
461
462 if (jump->flags & PATCH_B) {
463 addr = (sljit_sw)(addr - ((sljit_uw)SLJIT_ADD_EXEC_OFFSET(buf_ptr, executable_offset) + sizeof(sljit_ins))) >> 2;
464 SLJIT_ASSERT((sljit_sw)addr <= SIMM_MAX && (sljit_sw)addr >= SIMM_MIN);
465 buf_ptr[0] = (buf_ptr[0] & 0xffff0000) | (addr & 0xffff);
466 break;
467 }
468 if (jump->flags & PATCH_J) {
469 SLJIT_ASSERT((addr & ~0xfffffff) == (((sljit_uw)SLJIT_ADD_EXEC_OFFSET(buf_ptr, executable_offset) + sizeof(sljit_ins)) & ~0xfffffff));
470 buf_ptr[0] |= (addr >> 2) & 0x03ffffff;
471 break;
472 }
473
474 /* Set the fields of immediate loads. */
475 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
476 buf_ptr[0] = (buf_ptr[0] & 0xffff0000) | ((addr >> 16) & 0xffff);
477 buf_ptr[1] = (buf_ptr[1] & 0xffff0000) | (addr & 0xffff);
478 #else
479 if (jump->flags & PATCH_ABS32) {
480 SLJIT_ASSERT(addr <= 0x7fffffff);
481 buf_ptr[0] = (buf_ptr[0] & 0xffff0000) | ((addr >> 16) & 0xffff);
482 buf_ptr[1] = (buf_ptr[1] & 0xffff0000) | (addr & 0xffff);
483 }
484 else if (jump->flags & PATCH_ABS48) {
485 SLJIT_ASSERT(addr <= 0x7fffffffffffl);
486 buf_ptr[0] = (buf_ptr[0] & 0xffff0000) | ((addr >> 32) & 0xffff);
487 buf_ptr[1] = (buf_ptr[1] & 0xffff0000) | ((addr >> 16) & 0xffff);
488 buf_ptr[3] = (buf_ptr[3] & 0xffff0000) | (addr & 0xffff);
489 }
490 else {
491 buf_ptr[0] = (buf_ptr[0] & 0xffff0000) | ((addr >> 48) & 0xffff);
492 buf_ptr[1] = (buf_ptr[1] & 0xffff0000) | ((addr >> 32) & 0xffff);
493 buf_ptr[3] = (buf_ptr[3] & 0xffff0000) | ((addr >> 16) & 0xffff);
494 buf_ptr[5] = (buf_ptr[5] & 0xffff0000) | (addr & 0xffff);
495 }
496 #endif
497 } while (0);
498 jump = jump->next;
499 }
500
501 compiler->error = SLJIT_ERR_COMPILED;
502 compiler->executable_offset = executable_offset;
503 compiler->executable_size = (code_ptr - code) * sizeof(sljit_ins);
504
505 code = (sljit_ins *)SLJIT_ADD_EXEC_OFFSET(code, executable_offset);
506 code_ptr = (sljit_ins *)SLJIT_ADD_EXEC_OFFSET(code_ptr, executable_offset);
507
508 #ifndef __GNUC__
509 SLJIT_CACHE_FLUSH(code, code_ptr);
510 #else
511 /* GCC workaround for invalid code generation with -O2. */
512 sljit_cache_flush(code, code_ptr);
513 #endif
514 return code;
515 }
516
sljit_has_cpu_feature(sljit_s32 feature_type)517 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_has_cpu_feature(sljit_s32 feature_type)
518 {
519 sljit_sw fir = 0;
520
521 switch (feature_type) {
522 case SLJIT_HAS_FPU:
523 #ifdef SLJIT_IS_FPU_AVAILABLE
524 return SLJIT_IS_FPU_AVAILABLE;
525 #elif defined(__GNUC__)
526 asm ("cfc1 %0, $0" : "=r"(fir));
527 return (fir >> 22) & 0x1;
528 #else
529 #error "FIR check is not implemented for this architecture"
530 #endif
531
532 #if (defined SLJIT_MIPS_R1 && SLJIT_MIPS_R1)
533 case SLJIT_HAS_CLZ:
534 case SLJIT_HAS_CMOV:
535 return 1;
536 #endif
537
538 default:
539 return fir;
540 }
541 }
542
543 /* --------------------------------------------------------------------- */
544 /* Entry, exit */
545 /* --------------------------------------------------------------------- */
546
547 /* Creates an index in data_transfer_insts array. */
548 #define LOAD_DATA 0x01
549 #define WORD_DATA 0x00
550 #define BYTE_DATA 0x02
551 #define HALF_DATA 0x04
552 #define INT_DATA 0x06
553 #define SIGNED_DATA 0x08
554 /* Separates integer and floating point registers */
555 #define GPR_REG 0x0f
556 #define DOUBLE_DATA 0x10
557 #define SINGLE_DATA 0x12
558
559 #define MEM_MASK 0x1f
560
561 #define ARG_TEST 0x00020
562 #define ALT_KEEP_CACHE 0x00040
563 #define CUMULATIVE_OP 0x00080
564 #define LOGICAL_OP 0x00100
565 #define IMM_OP 0x00200
566 #define SRC2_IMM 0x00400
567
568 #define UNUSED_DEST 0x00800
569 #define REG_DEST 0x01000
570 #define REG1_SOURCE 0x02000
571 #define REG2_SOURCE 0x04000
572 #define SLOW_SRC1 0x08000
573 #define SLOW_SRC2 0x10000
574 #define SLOW_DEST 0x20000
575
576 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
577 #define STACK_STORE SW
578 #define STACK_LOAD LW
579 #else
580 #define STACK_STORE SD
581 #define STACK_LOAD LD
582 #endif
583
584 static SLJIT_INLINE sljit_s32 emit_op_mem(struct sljit_compiler *compiler, sljit_s32 flags, sljit_s32 reg_ar, sljit_s32 arg, sljit_sw argw);
585
586 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
587 #include "sljitNativeMIPS_32.c"
588 #else
589 #include "sljitNativeMIPS_64.c"
590 #endif
591
sljit_emit_enter(struct sljit_compiler * compiler,sljit_s32 options,sljit_s32 arg_types,sljit_s32 scratches,sljit_s32 saveds,sljit_s32 fscratches,sljit_s32 fsaveds,sljit_s32 local_size)592 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_enter(struct sljit_compiler *compiler,
593 sljit_s32 options, sljit_s32 arg_types, sljit_s32 scratches, sljit_s32 saveds,
594 sljit_s32 fscratches, sljit_s32 fsaveds, sljit_s32 local_size)
595 {
596 sljit_ins base;
597 sljit_s32 args, i, tmp, offs;
598
599 CHECK_ERROR();
600 CHECK(check_sljit_emit_enter(compiler, options, arg_types, scratches, saveds, fscratches, fsaveds, local_size));
601 set_emit_enter(compiler, options, arg_types, scratches, saveds, fscratches, fsaveds, local_size);
602
603 local_size += GET_SAVED_REGISTERS_SIZE(scratches, saveds, 1) + SLJIT_LOCALS_OFFSET;
604 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
605 local_size = (local_size + 15) & ~0xf;
606 #else
607 local_size = (local_size + 31) & ~0x1f;
608 #endif
609 compiler->local_size = local_size;
610
611 if (local_size <= SIMM_MAX) {
612 /* Frequent case. */
613 FAIL_IF(push_inst(compiler, ADDIU_W | S(SLJIT_SP) | T(SLJIT_SP) | IMM(-local_size), DR(SLJIT_SP)));
614 base = S(SLJIT_SP);
615 offs = local_size - (sljit_sw)sizeof(sljit_sw);
616 }
617 else {
618 FAIL_IF(load_immediate(compiler, DR(OTHER_FLAG), local_size));
619 FAIL_IF(push_inst(compiler, ADDU_W | S(SLJIT_SP) | TA(0) | D(TMP_REG2), DR(TMP_REG2)));
620 FAIL_IF(push_inst(compiler, SUBU_W | S(SLJIT_SP) | T(OTHER_FLAG) | D(SLJIT_SP), DR(SLJIT_SP)));
621 base = S(TMP_REG2);
622 local_size = 0;
623 offs = -(sljit_sw)sizeof(sljit_sw);
624 }
625
626 FAIL_IF(push_inst(compiler, STACK_STORE | base | TA(RETURN_ADDR_REG) | IMM(offs), MOVABLE_INS));
627
628 tmp = saveds < SLJIT_NUMBER_OF_SAVED_REGISTERS ? (SLJIT_S0 + 1 - saveds) : SLJIT_FIRST_SAVED_REG;
629 for (i = SLJIT_S0; i >= tmp; i--) {
630 offs -= (sljit_s32)(sizeof(sljit_sw));
631 FAIL_IF(push_inst(compiler, STACK_STORE | base | T(i) | IMM(offs), MOVABLE_INS));
632 }
633
634 for (i = scratches; i >= SLJIT_FIRST_SAVED_REG; i--) {
635 offs -= (sljit_s32)(sizeof(sljit_sw));
636 FAIL_IF(push_inst(compiler, STACK_STORE | base | T(i) | IMM(offs), MOVABLE_INS));
637 }
638
639 args = get_arg_count(arg_types);
640
641 if (args >= 1)
642 FAIL_IF(push_inst(compiler, ADDU_W | SA(4) | TA(0) | D(SLJIT_S0), DR(SLJIT_S0)));
643 if (args >= 2)
644 FAIL_IF(push_inst(compiler, ADDU_W | SA(5) | TA(0) | D(SLJIT_S1), DR(SLJIT_S1)));
645 if (args >= 3)
646 FAIL_IF(push_inst(compiler, ADDU_W | SA(6) | TA(0) | D(SLJIT_S2), DR(SLJIT_S2)));
647
648 return SLJIT_SUCCESS;
649 }
650
sljit_set_context(struct sljit_compiler * compiler,sljit_s32 options,sljit_s32 arg_types,sljit_s32 scratches,sljit_s32 saveds,sljit_s32 fscratches,sljit_s32 fsaveds,sljit_s32 local_size)651 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_set_context(struct sljit_compiler *compiler,
652 sljit_s32 options, sljit_s32 arg_types, sljit_s32 scratches, sljit_s32 saveds,
653 sljit_s32 fscratches, sljit_s32 fsaveds, sljit_s32 local_size)
654 {
655 CHECK_ERROR();
656 CHECK(check_sljit_set_context(compiler, options, arg_types, scratches, saveds, fscratches, fsaveds, local_size));
657 set_set_context(compiler, options, arg_types, scratches, saveds, fscratches, fsaveds, local_size);
658
659 local_size += GET_SAVED_REGISTERS_SIZE(scratches, saveds, 1) + SLJIT_LOCALS_OFFSET;
660 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
661 compiler->local_size = (local_size + 15) & ~0xf;
662 #else
663 compiler->local_size = (local_size + 31) & ~0x1f;
664 #endif
665 return SLJIT_SUCCESS;
666 }
667
sljit_emit_return(struct sljit_compiler * compiler,sljit_s32 op,sljit_s32 src,sljit_sw srcw)668 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_return(struct sljit_compiler *compiler, sljit_s32 op, sljit_s32 src, sljit_sw srcw)
669 {
670 sljit_s32 local_size, i, tmp, offs;
671 sljit_ins base;
672
673 CHECK_ERROR();
674 CHECK(check_sljit_emit_return(compiler, op, src, srcw));
675
676 FAIL_IF(emit_mov_before_return(compiler, op, src, srcw));
677
678 local_size = compiler->local_size;
679 if (local_size <= SIMM_MAX)
680 base = S(SLJIT_SP);
681 else {
682 FAIL_IF(load_immediate(compiler, DR(TMP_REG1), local_size));
683 FAIL_IF(push_inst(compiler, ADDU_W | S(SLJIT_SP) | T(TMP_REG1) | D(TMP_REG1), DR(TMP_REG1)));
684 base = S(TMP_REG1);
685 local_size = 0;
686 }
687
688 FAIL_IF(push_inst(compiler, STACK_LOAD | base | TA(RETURN_ADDR_REG) | IMM(local_size - (sljit_s32)sizeof(sljit_sw)), RETURN_ADDR_REG));
689 offs = local_size - (sljit_s32)GET_SAVED_REGISTERS_SIZE(compiler->scratches, compiler->saveds, 1);
690
691 tmp = compiler->scratches;
692 for (i = SLJIT_FIRST_SAVED_REG; i <= tmp; i++) {
693 FAIL_IF(push_inst(compiler, STACK_LOAD | base | T(i) | IMM(offs), DR(i)));
694 offs += (sljit_s32)(sizeof(sljit_sw));
695 }
696
697 tmp = compiler->saveds < SLJIT_NUMBER_OF_SAVED_REGISTERS ? (SLJIT_S0 + 1 - compiler->saveds) : SLJIT_FIRST_SAVED_REG;
698 for (i = tmp; i <= SLJIT_S0; i++) {
699 FAIL_IF(push_inst(compiler, STACK_LOAD | base | T(i) | IMM(offs), DR(i)));
700 offs += (sljit_s32)(sizeof(sljit_sw));
701 }
702
703 SLJIT_ASSERT(offs == local_size - (sljit_sw)(sizeof(sljit_sw)));
704
705 FAIL_IF(push_inst(compiler, JR | SA(RETURN_ADDR_REG), UNMOVABLE_INS));
706 if (compiler->local_size <= SIMM_MAX)
707 return push_inst(compiler, ADDIU_W | S(SLJIT_SP) | T(SLJIT_SP) | IMM(compiler->local_size), UNMOVABLE_INS);
708 else
709 return push_inst(compiler, ADDU_W | S(TMP_REG1) | TA(0) | D(SLJIT_SP), UNMOVABLE_INS);
710 }
711
712 #undef STACK_STORE
713 #undef STACK_LOAD
714
715 /* --------------------------------------------------------------------- */
716 /* Operators */
717 /* --------------------------------------------------------------------- */
718
719 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
720 #define ARCH_32_64(a, b) a
721 #else
722 #define ARCH_32_64(a, b) b
723 #endif
724
725 static const sljit_ins data_transfer_insts[16 + 4] = {
726 /* u w s */ ARCH_32_64(HI(43) /* sw */, HI(63) /* sd */),
727 /* u w l */ ARCH_32_64(HI(35) /* lw */, HI(55) /* ld */),
728 /* u b s */ HI(40) /* sb */,
729 /* u b l */ HI(36) /* lbu */,
730 /* u h s */ HI(41) /* sh */,
731 /* u h l */ HI(37) /* lhu */,
732 /* u i s */ HI(43) /* sw */,
733 /* u i l */ ARCH_32_64(HI(35) /* lw */, HI(39) /* lwu */),
734
735 /* s w s */ ARCH_32_64(HI(43) /* sw */, HI(63) /* sd */),
736 /* s w l */ ARCH_32_64(HI(35) /* lw */, HI(55) /* ld */),
737 /* s b s */ HI(40) /* sb */,
738 /* s b l */ HI(32) /* lb */,
739 /* s h s */ HI(41) /* sh */,
740 /* s h l */ HI(33) /* lh */,
741 /* s i s */ HI(43) /* sw */,
742 /* s i l */ HI(35) /* lw */,
743
744 /* d s */ HI(61) /* sdc1 */,
745 /* d l */ HI(53) /* ldc1 */,
746 /* s s */ HI(57) /* swc1 */,
747 /* s l */ HI(49) /* lwc1 */,
748 };
749
750 #undef ARCH_32_64
751
752 /* reg_ar is an absoulute register! */
753
754 /* Can perform an operation using at most 1 instruction. */
getput_arg_fast(struct sljit_compiler * compiler,sljit_s32 flags,sljit_s32 reg_ar,sljit_s32 arg,sljit_sw argw)755 static sljit_s32 getput_arg_fast(struct sljit_compiler *compiler, sljit_s32 flags, sljit_s32 reg_ar, sljit_s32 arg, sljit_sw argw)
756 {
757 SLJIT_ASSERT(arg & SLJIT_MEM);
758
759 if (!(arg & OFFS_REG_MASK) && argw <= SIMM_MAX && argw >= SIMM_MIN) {
760 /* Works for both absoulte and relative addresses. */
761 if (SLJIT_UNLIKELY(flags & ARG_TEST))
762 return 1;
763 FAIL_IF(push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | S(arg & REG_MASK)
764 | TA(reg_ar) | IMM(argw), ((flags & MEM_MASK) <= GPR_REG && (flags & LOAD_DATA)) ? reg_ar : MOVABLE_INS));
765 return -1;
766 }
767 return 0;
768 }
769
770 /* See getput_arg below.
771 Note: can_cache is called only for binary operators. Those
772 operators always uses word arguments without write back. */
can_cache(sljit_s32 arg,sljit_sw argw,sljit_s32 next_arg,sljit_sw next_argw)773 static sljit_s32 can_cache(sljit_s32 arg, sljit_sw argw, sljit_s32 next_arg, sljit_sw next_argw)
774 {
775 SLJIT_ASSERT((arg & SLJIT_MEM) && (next_arg & SLJIT_MEM));
776
777 /* Simple operation except for updates. */
778 if (arg & OFFS_REG_MASK) {
779 argw &= 0x3;
780 next_argw &= 0x3;
781 if (argw && argw == next_argw && (arg == next_arg || (arg & OFFS_REG_MASK) == (next_arg & OFFS_REG_MASK)))
782 return 1;
783 return 0;
784 }
785
786 if (arg == next_arg) {
787 if (((next_argw - argw) <= SIMM_MAX && (next_argw - argw) >= SIMM_MIN))
788 return 1;
789 return 0;
790 }
791
792 return 0;
793 }
794
795 /* Emit the necessary instructions. See can_cache above. */
getput_arg(struct sljit_compiler * compiler,sljit_s32 flags,sljit_s32 reg_ar,sljit_s32 arg,sljit_sw argw,sljit_s32 next_arg,sljit_sw next_argw)796 static sljit_s32 getput_arg(struct sljit_compiler *compiler, sljit_s32 flags, sljit_s32 reg_ar, sljit_s32 arg, sljit_sw argw, sljit_s32 next_arg, sljit_sw next_argw)
797 {
798 sljit_s32 tmp_ar, base, delay_slot;
799
800 SLJIT_ASSERT(arg & SLJIT_MEM);
801 if (!(next_arg & SLJIT_MEM)) {
802 next_arg = 0;
803 next_argw = 0;
804 }
805
806 if ((flags & MEM_MASK) <= GPR_REG && (flags & LOAD_DATA)) {
807 tmp_ar = reg_ar;
808 delay_slot = reg_ar;
809 }
810 else {
811 tmp_ar = DR(TMP_REG1);
812 delay_slot = MOVABLE_INS;
813 }
814 base = arg & REG_MASK;
815
816 if (SLJIT_UNLIKELY(arg & OFFS_REG_MASK)) {
817 argw &= 0x3;
818
819 /* Using the cache. */
820 if (argw == compiler->cache_argw) {
821 if (arg == compiler->cache_arg)
822 return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | S(TMP_REG3) | TA(reg_ar), delay_slot);
823
824 if ((SLJIT_MEM | (arg & OFFS_REG_MASK)) == compiler->cache_arg) {
825 if (arg == next_arg && argw == (next_argw & 0x3)) {
826 compiler->cache_arg = arg;
827 compiler->cache_argw = argw;
828 FAIL_IF(push_inst(compiler, ADDU_W | S(base) | T(TMP_REG3) | D(TMP_REG3), DR(TMP_REG3)));
829 return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | S(TMP_REG3) | TA(reg_ar), delay_slot);
830 }
831 FAIL_IF(push_inst(compiler, ADDU_W | S(base) | T(TMP_REG3) | DA(tmp_ar), tmp_ar));
832 return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | SA(tmp_ar) | TA(reg_ar), delay_slot);
833 }
834 }
835
836 if (SLJIT_UNLIKELY(argw)) {
837 compiler->cache_arg = SLJIT_MEM | (arg & OFFS_REG_MASK);
838 compiler->cache_argw = argw;
839 FAIL_IF(push_inst(compiler, SLL_W | T(OFFS_REG(arg)) | D(TMP_REG3) | SH_IMM(argw), DR(TMP_REG3)));
840 }
841
842 if (arg == next_arg && argw == (next_argw & 0x3)) {
843 compiler->cache_arg = arg;
844 compiler->cache_argw = argw;
845 FAIL_IF(push_inst(compiler, ADDU_W | S(base) | T(!argw ? OFFS_REG(arg) : TMP_REG3) | D(TMP_REG3), DR(TMP_REG3)));
846 tmp_ar = DR(TMP_REG3);
847 }
848 else
849 FAIL_IF(push_inst(compiler, ADDU_W | S(base) | T(!argw ? OFFS_REG(arg) : TMP_REG3) | DA(tmp_ar), tmp_ar));
850 return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | SA(tmp_ar) | TA(reg_ar), delay_slot);
851 }
852
853 if (compiler->cache_arg == arg && argw - compiler->cache_argw <= SIMM_MAX && argw - compiler->cache_argw >= SIMM_MIN) {
854 if (argw != compiler->cache_argw) {
855 FAIL_IF(push_inst(compiler, ADDIU_W | S(TMP_REG3) | T(TMP_REG3) | IMM(argw - compiler->cache_argw), DR(TMP_REG3)));
856 compiler->cache_argw = argw;
857 }
858 return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | S(TMP_REG3) | TA(reg_ar), delay_slot);
859 }
860
861 if (compiler->cache_arg == SLJIT_MEM && argw - compiler->cache_argw <= SIMM_MAX && argw - compiler->cache_argw >= SIMM_MIN) {
862 if (argw != compiler->cache_argw)
863 FAIL_IF(push_inst(compiler, ADDIU_W | S(TMP_REG3) | T(TMP_REG3) | IMM(argw - compiler->cache_argw), DR(TMP_REG3)));
864 }
865 else {
866 compiler->cache_arg = SLJIT_MEM;
867 FAIL_IF(load_immediate(compiler, DR(TMP_REG3), argw));
868 }
869 compiler->cache_argw = argw;
870
871 if (!base)
872 return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | S(TMP_REG3) | TA(reg_ar), delay_slot);
873
874 if (arg == next_arg && next_argw - argw <= SIMM_MAX && next_argw - argw >= SIMM_MIN) {
875 compiler->cache_arg = arg;
876 FAIL_IF(push_inst(compiler, ADDU_W | S(TMP_REG3) | T(base) | D(TMP_REG3), DR(TMP_REG3)));
877 return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | S(TMP_REG3) | TA(reg_ar), delay_slot);
878 }
879
880 FAIL_IF(push_inst(compiler, ADDU_W | S(TMP_REG3) | T(base) | DA(tmp_ar), tmp_ar));
881 return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | SA(tmp_ar) | TA(reg_ar), delay_slot);
882 }
883
emit_op_mem(struct sljit_compiler * compiler,sljit_s32 flags,sljit_s32 reg_ar,sljit_s32 arg,sljit_sw argw)884 static SLJIT_INLINE sljit_s32 emit_op_mem(struct sljit_compiler *compiler, sljit_s32 flags, sljit_s32 reg_ar, sljit_s32 arg, sljit_sw argw)
885 {
886 sljit_s32 tmp_ar, base, delay_slot;
887
888 if (getput_arg_fast(compiler, flags, reg_ar, arg, argw))
889 return compiler->error;
890
891 if ((flags & MEM_MASK) <= GPR_REG && (flags & LOAD_DATA)) {
892 tmp_ar = reg_ar;
893 delay_slot = reg_ar;
894 }
895 else {
896 tmp_ar = DR(TMP_REG1);
897 delay_slot = MOVABLE_INS;
898 }
899 base = arg & REG_MASK;
900
901 if (SLJIT_UNLIKELY(arg & OFFS_REG_MASK)) {
902 argw &= 0x3;
903
904 if (SLJIT_UNLIKELY(argw)) {
905 FAIL_IF(push_inst(compiler, SLL_W | T(OFFS_REG(arg)) | DA(tmp_ar) | SH_IMM(argw), tmp_ar));
906 FAIL_IF(push_inst(compiler, ADDU_W | S(base) | TA(tmp_ar) | DA(tmp_ar), tmp_ar));
907 }
908 else
909 FAIL_IF(push_inst(compiler, ADDU_W | S(base) | T(OFFS_REG(arg)) | DA(tmp_ar), tmp_ar));
910 return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | SA(tmp_ar) | TA(reg_ar), delay_slot);
911 }
912
913 FAIL_IF(load_immediate(compiler, tmp_ar, argw));
914
915 if (base != 0)
916 FAIL_IF(push_inst(compiler, ADDU_W | S(base) | TA(tmp_ar) | DA(tmp_ar), tmp_ar));
917
918 return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | SA(tmp_ar) | TA(reg_ar), delay_slot);
919 }
920
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)921 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)
922 {
923 if (getput_arg_fast(compiler, flags, reg, arg1, arg1w))
924 return compiler->error;
925 return getput_arg(compiler, flags, reg, arg1, arg1w, arg2, arg2w);
926 }
927
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)928 static sljit_s32 emit_op(struct sljit_compiler *compiler, sljit_s32 op, sljit_s32 flags,
929 sljit_s32 dst, sljit_sw dstw,
930 sljit_s32 src1, sljit_sw src1w,
931 sljit_s32 src2, sljit_sw src2w)
932 {
933 /* arg1 goes to TMP_REG1 or src reg
934 arg2 goes to TMP_REG2, imm or src reg
935 TMP_REG3 can be used for caching
936 result goes to TMP_REG2, so put result can use TMP_REG1 and TMP_REG3. */
937 sljit_s32 dst_r = TMP_REG2;
938 sljit_s32 src1_r;
939 sljit_sw src2_r = 0;
940 sljit_s32 sugg_src2_r = TMP_REG2;
941
942 if (!(flags & ALT_KEEP_CACHE)) {
943 compiler->cache_arg = 0;
944 compiler->cache_argw = 0;
945 }
946
947 if (SLJIT_UNLIKELY(dst == SLJIT_UNUSED)) {
948 SLJIT_ASSERT(HAS_FLAGS(op));
949 flags |= UNUSED_DEST;
950 }
951 else if (FAST_IS_REG(dst)) {
952 dst_r = dst;
953 flags |= REG_DEST;
954 if (op >= SLJIT_MOV && op <= SLJIT_MOV_P)
955 sugg_src2_r = dst_r;
956 }
957 else if ((dst & SLJIT_MEM) && !getput_arg_fast(compiler, flags | ARG_TEST, DR(TMP_REG1), dst, dstw))
958 flags |= SLOW_DEST;
959
960 if (flags & IMM_OP) {
961 if ((src2 & SLJIT_IMM) && src2w) {
962 if ((!(flags & LOGICAL_OP) && (src2w <= SIMM_MAX && src2w >= SIMM_MIN))
963 || ((flags & LOGICAL_OP) && !(src2w & ~UIMM_MAX))) {
964 flags |= SRC2_IMM;
965 src2_r = src2w;
966 }
967 }
968 if (!(flags & SRC2_IMM) && (flags & CUMULATIVE_OP) && (src1 & SLJIT_IMM) && src1w) {
969 if ((!(flags & LOGICAL_OP) && (src1w <= SIMM_MAX && src1w >= SIMM_MIN))
970 || ((flags & LOGICAL_OP) && !(src1w & ~UIMM_MAX))) {
971 flags |= SRC2_IMM;
972 src2_r = src1w;
973
974 /* And swap arguments. */
975 src1 = src2;
976 src1w = src2w;
977 src2 = SLJIT_IMM;
978 /* src2w = src2_r unneeded. */
979 }
980 }
981 }
982
983 /* Source 1. */
984 if (FAST_IS_REG(src1)) {
985 src1_r = src1;
986 flags |= REG1_SOURCE;
987 }
988 else if (src1 & SLJIT_IMM) {
989 if (src1w) {
990 FAIL_IF(load_immediate(compiler, DR(TMP_REG1), src1w));
991 src1_r = TMP_REG1;
992 }
993 else
994 src1_r = 0;
995 }
996 else {
997 if (getput_arg_fast(compiler, flags | LOAD_DATA, DR(TMP_REG1), src1, src1w))
998 FAIL_IF(compiler->error);
999 else
1000 flags |= SLOW_SRC1;
1001 src1_r = TMP_REG1;
1002 }
1003
1004 /* Source 2. */
1005 if (FAST_IS_REG(src2)) {
1006 src2_r = src2;
1007 flags |= REG2_SOURCE;
1008 if (!(flags & REG_DEST) && op >= SLJIT_MOV && op <= SLJIT_MOV_P)
1009 dst_r = src2_r;
1010 }
1011 else if (src2 & SLJIT_IMM) {
1012 if (!(flags & SRC2_IMM)) {
1013 if (src2w) {
1014 FAIL_IF(load_immediate(compiler, DR(sugg_src2_r), src2w));
1015 src2_r = sugg_src2_r;
1016 }
1017 else {
1018 src2_r = 0;
1019 if ((op >= SLJIT_MOV && op <= SLJIT_MOV_P) && (dst & SLJIT_MEM))
1020 dst_r = 0;
1021 }
1022 }
1023 }
1024 else {
1025 if (getput_arg_fast(compiler, flags | LOAD_DATA, DR(sugg_src2_r), src2, src2w))
1026 FAIL_IF(compiler->error);
1027 else
1028 flags |= SLOW_SRC2;
1029 src2_r = sugg_src2_r;
1030 }
1031
1032 if ((flags & (SLOW_SRC1 | SLOW_SRC2)) == (SLOW_SRC1 | SLOW_SRC2)) {
1033 SLJIT_ASSERT(src2_r == TMP_REG2);
1034 if (!can_cache(src1, src1w, src2, src2w) && can_cache(src1, src1w, dst, dstw)) {
1035 FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, DR(TMP_REG2), src2, src2w, src1, src1w));
1036 FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, DR(TMP_REG1), src1, src1w, dst, dstw));
1037 }
1038 else {
1039 FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, DR(TMP_REG1), src1, src1w, src2, src2w));
1040 FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, DR(TMP_REG2), src2, src2w, dst, dstw));
1041 }
1042 }
1043 else if (flags & SLOW_SRC1)
1044 FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, DR(TMP_REG1), src1, src1w, dst, dstw));
1045 else if (flags & SLOW_SRC2)
1046 FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, DR(sugg_src2_r), src2, src2w, dst, dstw));
1047
1048 FAIL_IF(emit_single_op(compiler, op, flags, dst_r, src1_r, src2_r));
1049
1050 if (dst & SLJIT_MEM) {
1051 if (!(flags & SLOW_DEST)) {
1052 getput_arg_fast(compiler, flags, DR(dst_r), dst, dstw);
1053 return compiler->error;
1054 }
1055 return getput_arg(compiler, flags, DR(dst_r), dst, dstw, 0, 0);
1056 }
1057
1058 return SLJIT_SUCCESS;
1059 }
1060
sljit_emit_op0(struct sljit_compiler * compiler,sljit_s32 op)1061 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_op0(struct sljit_compiler *compiler, sljit_s32 op)
1062 {
1063 #if (defined SLJIT_CONFIG_MIPS_64 && SLJIT_CONFIG_MIPS_64)
1064 sljit_s32 int_op = op & SLJIT_I32_OP;
1065 #endif
1066
1067 CHECK_ERROR();
1068 CHECK(check_sljit_emit_op0(compiler, op));
1069
1070 op = GET_OPCODE(op);
1071 switch (op) {
1072 case SLJIT_BREAKPOINT:
1073 return push_inst(compiler, BREAK, UNMOVABLE_INS);
1074 case SLJIT_NOP:
1075 return push_inst(compiler, NOP, UNMOVABLE_INS);
1076 case SLJIT_LMUL_UW:
1077 case SLJIT_LMUL_SW:
1078 #if (defined SLJIT_CONFIG_MIPS_64 && SLJIT_CONFIG_MIPS_64)
1079 FAIL_IF(push_inst(compiler, (op == SLJIT_LMUL_UW ? DMULTU : DMULT) | S(SLJIT_R0) | T(SLJIT_R1), MOVABLE_INS));
1080 #else
1081 FAIL_IF(push_inst(compiler, (op == SLJIT_LMUL_UW ? MULTU : MULT) | S(SLJIT_R0) | T(SLJIT_R1), MOVABLE_INS));
1082 #endif
1083 FAIL_IF(push_inst(compiler, MFLO | D(SLJIT_R0), DR(SLJIT_R0)));
1084 return push_inst(compiler, MFHI | D(SLJIT_R1), DR(SLJIT_R1));
1085 case SLJIT_DIVMOD_UW:
1086 case SLJIT_DIVMOD_SW:
1087 case SLJIT_DIV_UW:
1088 case SLJIT_DIV_SW:
1089 SLJIT_COMPILE_ASSERT((SLJIT_DIVMOD_UW & 0x2) == 0 && SLJIT_DIV_UW - 0x2 == SLJIT_DIVMOD_UW, bad_div_opcode_assignments);
1090 #if !(defined SLJIT_MIPS_R1 && SLJIT_MIPS_R1)
1091 FAIL_IF(push_inst(compiler, NOP, UNMOVABLE_INS));
1092 FAIL_IF(push_inst(compiler, NOP, UNMOVABLE_INS));
1093 #endif
1094
1095 #if (defined SLJIT_CONFIG_MIPS_64 && SLJIT_CONFIG_MIPS_64)
1096 if (int_op)
1097 FAIL_IF(push_inst(compiler, ((op | 0x2) == SLJIT_DIV_UW ? DIVU : DIV) | S(SLJIT_R0) | T(SLJIT_R1), MOVABLE_INS));
1098 else
1099 FAIL_IF(push_inst(compiler, ((op | 0x2) == SLJIT_DIV_UW ? DDIVU : DDIV) | S(SLJIT_R0) | T(SLJIT_R1), MOVABLE_INS));
1100 #else
1101 FAIL_IF(push_inst(compiler, ((op | 0x2) == SLJIT_DIV_UW ? DIVU : DIV) | S(SLJIT_R0) | T(SLJIT_R1), MOVABLE_INS));
1102 #endif
1103
1104 FAIL_IF(push_inst(compiler, MFLO | D(SLJIT_R0), DR(SLJIT_R0)));
1105 return (op >= SLJIT_DIV_UW) ? SLJIT_SUCCESS : push_inst(compiler, MFHI | D(SLJIT_R1), DR(SLJIT_R1));
1106 }
1107
1108 return SLJIT_SUCCESS;
1109 }
1110
1111 #if (defined SLJIT_MIPS_R1 && SLJIT_MIPS_R1)
emit_prefetch(struct sljit_compiler * compiler,sljit_s32 src,sljit_sw srcw)1112 static sljit_s32 emit_prefetch(struct sljit_compiler *compiler,
1113 sljit_s32 src, sljit_sw srcw)
1114 {
1115 if (!(src & OFFS_REG_MASK)) {
1116 if (srcw <= SIMM_MAX && srcw >= SIMM_MIN)
1117 return push_inst(compiler, PREF | S(src & REG_MASK) | IMM(srcw), MOVABLE_INS);
1118
1119 FAIL_IF(load_immediate(compiler, DR(TMP_REG1), srcw));
1120 return push_inst(compiler, PREFX | S(src & REG_MASK) | T(TMP_REG1), MOVABLE_INS);
1121 }
1122
1123 srcw &= 0x3;
1124
1125 if (SLJIT_UNLIKELY(srcw != 0)) {
1126 FAIL_IF(push_inst(compiler, SLL_W | T(OFFS_REG(src)) | D(TMP_REG1) | SH_IMM(srcw), DR(TMP_REG1)));
1127 return push_inst(compiler, PREFX | S(src & REG_MASK) | T(TMP_REG1), MOVABLE_INS);
1128 }
1129
1130 return push_inst(compiler, PREFX | S(src & REG_MASK) | T(OFFS_REG(src)), MOVABLE_INS);
1131 }
1132 #endif
1133
sljit_emit_op1(struct sljit_compiler * compiler,sljit_s32 op,sljit_s32 dst,sljit_sw dstw,sljit_s32 src,sljit_sw srcw)1134 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_op1(struct sljit_compiler *compiler, sljit_s32 op,
1135 sljit_s32 dst, sljit_sw dstw,
1136 sljit_s32 src, sljit_sw srcw)
1137 {
1138 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
1139 # define flags 0
1140 #else
1141 sljit_s32 flags = 0;
1142 #endif
1143
1144 CHECK_ERROR();
1145 CHECK(check_sljit_emit_op1(compiler, op, dst, dstw, src, srcw));
1146 ADJUST_LOCAL_OFFSET(dst, dstw);
1147 ADJUST_LOCAL_OFFSET(src, srcw);
1148
1149 if (dst == SLJIT_UNUSED && !HAS_FLAGS(op)) {
1150 #if (defined SLJIT_MIPS_R1 && SLJIT_MIPS_R1)
1151 if (op <= SLJIT_MOV_P && (src & SLJIT_MEM))
1152 return emit_prefetch(compiler, src, srcw);
1153 #endif
1154 return SLJIT_SUCCESS;
1155 }
1156
1157 #if (defined SLJIT_CONFIG_MIPS_64 && SLJIT_CONFIG_MIPS_64)
1158 if ((op & SLJIT_I32_OP) && GET_OPCODE(op) >= SLJIT_NOT)
1159 flags |= INT_DATA | SIGNED_DATA;
1160 #endif
1161
1162 switch (GET_OPCODE(op)) {
1163 case SLJIT_MOV:
1164 case SLJIT_MOV_P:
1165 return emit_op(compiler, SLJIT_MOV, WORD_DATA, dst, dstw, TMP_REG1, 0, src, srcw);
1166
1167 case SLJIT_MOV_U32:
1168 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
1169 return emit_op(compiler, SLJIT_MOV_U32, INT_DATA, dst, dstw, TMP_REG1, 0, src, srcw);
1170 #else
1171 return emit_op(compiler, SLJIT_MOV_U32, INT_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_u32)srcw : srcw);
1172 #endif
1173
1174 case SLJIT_MOV_S32:
1175 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
1176 return emit_op(compiler, SLJIT_MOV_S32, INT_DATA | SIGNED_DATA, dst, dstw, TMP_REG1, 0, src, srcw);
1177 #else
1178 return emit_op(compiler, SLJIT_MOV_S32, INT_DATA | SIGNED_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_s32)srcw : srcw);
1179 #endif
1180
1181 case SLJIT_MOV_U8:
1182 return emit_op(compiler, SLJIT_MOV_U8, BYTE_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_u8)srcw : srcw);
1183
1184 case SLJIT_MOV_S8:
1185 return emit_op(compiler, SLJIT_MOV_S8, BYTE_DATA | SIGNED_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_s8)srcw : srcw);
1186
1187 case SLJIT_MOV_U16:
1188 return emit_op(compiler, SLJIT_MOV_U16, HALF_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_u16)srcw : srcw);
1189
1190 case SLJIT_MOV_S16:
1191 return emit_op(compiler, SLJIT_MOV_S16, HALF_DATA | SIGNED_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_s16)srcw : srcw);
1192
1193 case SLJIT_NOT:
1194 return emit_op(compiler, op, flags, dst, dstw, TMP_REG1, 0, src, srcw);
1195
1196 case SLJIT_NEG:
1197 return emit_op(compiler, SLJIT_SUB | GET_ALL_FLAGS(op), flags | IMM_OP, dst, dstw, SLJIT_IMM, 0, src, srcw);
1198
1199 case SLJIT_CLZ:
1200 return emit_op(compiler, op, flags, dst, dstw, TMP_REG1, 0, src, srcw);
1201 }
1202
1203 SLJIT_UNREACHABLE();
1204 return SLJIT_SUCCESS;
1205
1206 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
1207 # undef flags
1208 #endif
1209 }
1210
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)1211 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_op2(struct sljit_compiler *compiler, sljit_s32 op,
1212 sljit_s32 dst, sljit_sw dstw,
1213 sljit_s32 src1, sljit_sw src1w,
1214 sljit_s32 src2, sljit_sw src2w)
1215 {
1216 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
1217 # define flags 0
1218 #else
1219 sljit_s32 flags = 0;
1220 #endif
1221
1222 CHECK_ERROR();
1223 CHECK(check_sljit_emit_op2(compiler, op, dst, dstw, src1, src1w, src2, src2w));
1224 ADJUST_LOCAL_OFFSET(dst, dstw);
1225 ADJUST_LOCAL_OFFSET(src1, src1w);
1226 ADJUST_LOCAL_OFFSET(src2, src2w);
1227
1228 if (dst == SLJIT_UNUSED && !HAS_FLAGS(op))
1229 return SLJIT_SUCCESS;
1230
1231 #if (defined SLJIT_CONFIG_MIPS_64 && SLJIT_CONFIG_MIPS_64)
1232 if (op & SLJIT_I32_OP) {
1233 flags |= INT_DATA | SIGNED_DATA;
1234 if (src1 & SLJIT_IMM)
1235 src1w = (sljit_s32)src1w;
1236 if (src2 & SLJIT_IMM)
1237 src2w = (sljit_s32)src2w;
1238 }
1239 #endif
1240
1241 switch (GET_OPCODE(op)) {
1242 case SLJIT_ADD:
1243 case SLJIT_ADDC:
1244 return emit_op(compiler, op, flags | CUMULATIVE_OP | IMM_OP, dst, dstw, src1, src1w, src2, src2w);
1245
1246 case SLJIT_SUB:
1247 case SLJIT_SUBC:
1248 return emit_op(compiler, op, flags | IMM_OP, dst, dstw, src1, src1w, src2, src2w);
1249
1250 case SLJIT_MUL:
1251 return emit_op(compiler, op, flags | CUMULATIVE_OP, dst, dstw, src1, src1w, src2, src2w);
1252
1253 case SLJIT_AND:
1254 case SLJIT_OR:
1255 case SLJIT_XOR:
1256 return emit_op(compiler, op, flags | CUMULATIVE_OP | LOGICAL_OP | IMM_OP, dst, dstw, src1, src1w, src2, src2w);
1257
1258 case SLJIT_SHL:
1259 case SLJIT_LSHR:
1260 case SLJIT_ASHR:
1261 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
1262 if (src2 & SLJIT_IMM)
1263 src2w &= 0x1f;
1264 #else
1265 if (src2 & SLJIT_IMM) {
1266 if (op & SLJIT_I32_OP)
1267 src2w &= 0x1f;
1268 else
1269 src2w &= 0x3f;
1270 }
1271 #endif
1272 return emit_op(compiler, op, flags | IMM_OP, dst, dstw, src1, src1w, src2, src2w);
1273 }
1274
1275 SLJIT_UNREACHABLE();
1276 return SLJIT_SUCCESS;
1277
1278 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
1279 # undef flags
1280 #endif
1281 }
1282
sljit_get_register_index(sljit_s32 reg)1283 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_get_register_index(sljit_s32 reg)
1284 {
1285 CHECK_REG_INDEX(check_sljit_get_register_index(reg));
1286 return reg_map[reg];
1287 }
1288
sljit_get_float_register_index(sljit_s32 reg)1289 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_get_float_register_index(sljit_s32 reg)
1290 {
1291 CHECK_REG_INDEX(check_sljit_get_float_register_index(reg));
1292 return FR(reg);
1293 }
1294
sljit_emit_op_custom(struct sljit_compiler * compiler,void * instruction,sljit_s32 size)1295 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_op_custom(struct sljit_compiler *compiler,
1296 void *instruction, sljit_s32 size)
1297 {
1298 CHECK_ERROR();
1299 CHECK(check_sljit_emit_op_custom(compiler, instruction, size));
1300
1301 return push_inst(compiler, *(sljit_ins*)instruction, UNMOVABLE_INS);
1302 }
1303
1304 /* --------------------------------------------------------------------- */
1305 /* Floating point operators */
1306 /* --------------------------------------------------------------------- */
1307
1308 #define FLOAT_DATA(op) (DOUBLE_DATA | ((op & SLJIT_F32_OP) >> 7))
1309 #define FMT(op) (((op & SLJIT_F32_OP) ^ SLJIT_F32_OP) << (21 - 8))
1310
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)1311 static SLJIT_INLINE sljit_s32 sljit_emit_fop1_conv_sw_from_f64(struct sljit_compiler *compiler, sljit_s32 op,
1312 sljit_s32 dst, sljit_sw dstw,
1313 sljit_s32 src, sljit_sw srcw)
1314 {
1315 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
1316 # define flags 0
1317 #else
1318 sljit_s32 flags = (GET_OPCODE(op) == SLJIT_CONV_SW_FROM_F64) << 21;
1319 #endif
1320
1321 if (src & SLJIT_MEM) {
1322 FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op) | LOAD_DATA, FR(TMP_FREG1), src, srcw, dst, dstw));
1323 src = TMP_FREG1;
1324 }
1325
1326 FAIL_IF(push_inst(compiler, (TRUNC_W_S ^ (flags >> 19)) | FMT(op) | FS(src) | FD(TMP_FREG1), MOVABLE_INS));
1327
1328 if (FAST_IS_REG(dst))
1329 return push_inst(compiler, MFC1 | flags | T(dst) | FS(TMP_FREG1), MOVABLE_INS);
1330
1331 /* Store the integer value from a VFP register. */
1332 return emit_op_mem2(compiler, flags ? DOUBLE_DATA : SINGLE_DATA, FR(TMP_FREG1), dst, dstw, 0, 0);
1333
1334 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
1335 # undef is_long
1336 #endif
1337 }
1338
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)1339 static SLJIT_INLINE sljit_s32 sljit_emit_fop1_conv_f64_from_sw(struct sljit_compiler *compiler, sljit_s32 op,
1340 sljit_s32 dst, sljit_sw dstw,
1341 sljit_s32 src, sljit_sw srcw)
1342 {
1343 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
1344 # define flags 0
1345 #else
1346 sljit_s32 flags = (GET_OPCODE(op) == SLJIT_CONV_F64_FROM_SW) << 21;
1347 #endif
1348
1349 sljit_s32 dst_r = FAST_IS_REG(dst) ? dst : TMP_FREG1;
1350
1351 if (FAST_IS_REG(src))
1352 FAIL_IF(push_inst(compiler, MTC1 | flags | T(src) | FS(TMP_FREG1), MOVABLE_INS));
1353 else if (src & SLJIT_MEM) {
1354 /* Load the integer value into a VFP register. */
1355 FAIL_IF(emit_op_mem2(compiler, ((flags) ? DOUBLE_DATA : SINGLE_DATA) | LOAD_DATA, FR(TMP_FREG1), src, srcw, dst, dstw));
1356 }
1357 else {
1358 #if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64)
1359 if (GET_OPCODE(op) == SLJIT_CONV_F64_FROM_S32)
1360 srcw = (sljit_s32)srcw;
1361 #endif
1362 FAIL_IF(load_immediate(compiler, DR(TMP_REG1), srcw));
1363 FAIL_IF(push_inst(compiler, MTC1 | flags | T(TMP_REG1) | FS(TMP_FREG1), MOVABLE_INS));
1364 }
1365
1366 FAIL_IF(push_inst(compiler, CVT_S_S | flags | (4 << 21) | (((op & SLJIT_F32_OP) ^ SLJIT_F32_OP) >> 8) | FS(TMP_FREG1) | FD(dst_r), MOVABLE_INS));
1367
1368 if (dst & SLJIT_MEM)
1369 return emit_op_mem2(compiler, FLOAT_DATA(op), FR(TMP_FREG1), dst, dstw, 0, 0);
1370 return SLJIT_SUCCESS;
1371
1372 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
1373 # undef flags
1374 #endif
1375 }
1376
sljit_emit_fop1_cmp(struct sljit_compiler * compiler,sljit_s32 op,sljit_s32 src1,sljit_sw src1w,sljit_s32 src2,sljit_sw src2w)1377 static SLJIT_INLINE sljit_s32 sljit_emit_fop1_cmp(struct sljit_compiler *compiler, sljit_s32 op,
1378 sljit_s32 src1, sljit_sw src1w,
1379 sljit_s32 src2, sljit_sw src2w)
1380 {
1381 sljit_ins inst;
1382
1383 if (src1 & SLJIT_MEM) {
1384 FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op) | LOAD_DATA, FR(TMP_FREG1), src1, src1w, src2, src2w));
1385 src1 = TMP_FREG1;
1386 }
1387
1388 if (src2 & SLJIT_MEM) {
1389 FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op) | LOAD_DATA, FR(TMP_FREG2), src2, src2w, 0, 0));
1390 src2 = TMP_FREG2;
1391 }
1392
1393 switch (GET_FLAG_TYPE(op)) {
1394 case SLJIT_EQUAL_F64:
1395 case SLJIT_NOT_EQUAL_F64:
1396 inst = C_UEQ_S;
1397 break;
1398 case SLJIT_LESS_F64:
1399 case SLJIT_GREATER_EQUAL_F64:
1400 inst = C_ULT_S;
1401 break;
1402 case SLJIT_GREATER_F64:
1403 case SLJIT_LESS_EQUAL_F64:
1404 inst = C_ULE_S;
1405 break;
1406 default:
1407 SLJIT_ASSERT(GET_FLAG_TYPE(op) == SLJIT_UNORDERED_F64 || GET_FLAG_TYPE(op) == SLJIT_ORDERED_F64);
1408 inst = C_UN_S;
1409 break;
1410 }
1411
1412 return push_inst(compiler, inst | FMT(op) | FT(src2) | FS(src1), UNMOVABLE_INS);
1413 }
1414
sljit_emit_fop1(struct sljit_compiler * compiler,sljit_s32 op,sljit_s32 dst,sljit_sw dstw,sljit_s32 src,sljit_sw srcw)1415 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_fop1(struct sljit_compiler *compiler, sljit_s32 op,
1416 sljit_s32 dst, sljit_sw dstw,
1417 sljit_s32 src, sljit_sw srcw)
1418 {
1419 sljit_s32 dst_r;
1420
1421 CHECK_ERROR();
1422 compiler->cache_arg = 0;
1423 compiler->cache_argw = 0;
1424
1425 SLJIT_COMPILE_ASSERT((SLJIT_F32_OP == 0x100) && !(DOUBLE_DATA & 0x2), float_transfer_bit_error);
1426 SELECT_FOP1_OPERATION_WITH_CHECKS(compiler, op, dst, dstw, src, srcw);
1427
1428 if (GET_OPCODE(op) == SLJIT_CONV_F64_FROM_F32)
1429 op ^= SLJIT_F32_OP;
1430
1431 dst_r = FAST_IS_REG(dst) ? dst : TMP_FREG1;
1432
1433 if (src & SLJIT_MEM) {
1434 FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op) | LOAD_DATA, FR(dst_r), src, srcw, dst, dstw));
1435 src = dst_r;
1436 }
1437
1438 switch (GET_OPCODE(op)) {
1439 case SLJIT_MOV_F64:
1440 if (src != dst_r) {
1441 if (dst_r != TMP_FREG1)
1442 FAIL_IF(push_inst(compiler, MOV_S | FMT(op) | FS(src) | FD(dst_r), MOVABLE_INS));
1443 else
1444 dst_r = src;
1445 }
1446 break;
1447 case SLJIT_NEG_F64:
1448 FAIL_IF(push_inst(compiler, NEG_S | FMT(op) | FS(src) | FD(dst_r), MOVABLE_INS));
1449 break;
1450 case SLJIT_ABS_F64:
1451 FAIL_IF(push_inst(compiler, ABS_S | FMT(op) | FS(src) | FD(dst_r), MOVABLE_INS));
1452 break;
1453 case SLJIT_CONV_F64_FROM_F32:
1454 FAIL_IF(push_inst(compiler, CVT_S_S | ((op & SLJIT_F32_OP) ? 1 : (1 << 21)) | FS(src) | FD(dst_r), MOVABLE_INS));
1455 op ^= SLJIT_F32_OP;
1456 break;
1457 }
1458
1459 if (dst & SLJIT_MEM)
1460 return emit_op_mem2(compiler, FLOAT_DATA(op), FR(dst_r), dst, dstw, 0, 0);
1461 return SLJIT_SUCCESS;
1462 }
1463
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)1464 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_fop2(struct sljit_compiler *compiler, sljit_s32 op,
1465 sljit_s32 dst, sljit_sw dstw,
1466 sljit_s32 src1, sljit_sw src1w,
1467 sljit_s32 src2, sljit_sw src2w)
1468 {
1469 sljit_s32 dst_r, flags = 0;
1470
1471 CHECK_ERROR();
1472 CHECK(check_sljit_emit_fop2(compiler, op, dst, dstw, src1, src1w, src2, src2w));
1473 ADJUST_LOCAL_OFFSET(dst, dstw);
1474 ADJUST_LOCAL_OFFSET(src1, src1w);
1475 ADJUST_LOCAL_OFFSET(src2, src2w);
1476
1477 compiler->cache_arg = 0;
1478 compiler->cache_argw = 0;
1479
1480 dst_r = FAST_IS_REG(dst) ? dst : TMP_FREG2;
1481
1482 if (src1 & SLJIT_MEM) {
1483 if (getput_arg_fast(compiler, FLOAT_DATA(op) | LOAD_DATA, FR(TMP_FREG1), src1, src1w)) {
1484 FAIL_IF(compiler->error);
1485 src1 = TMP_FREG1;
1486 } else
1487 flags |= SLOW_SRC1;
1488 }
1489
1490 if (src2 & SLJIT_MEM) {
1491 if (getput_arg_fast(compiler, FLOAT_DATA(op) | LOAD_DATA, FR(TMP_FREG2), src2, src2w)) {
1492 FAIL_IF(compiler->error);
1493 src2 = TMP_FREG2;
1494 } else
1495 flags |= SLOW_SRC2;
1496 }
1497
1498 if ((flags & (SLOW_SRC1 | SLOW_SRC2)) == (SLOW_SRC1 | SLOW_SRC2)) {
1499 if (!can_cache(src1, src1w, src2, src2w) && can_cache(src1, src1w, dst, dstw)) {
1500 FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, FR(TMP_FREG2), src2, src2w, src1, src1w));
1501 FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, FR(TMP_FREG1), src1, src1w, dst, dstw));
1502 }
1503 else {
1504 FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, FR(TMP_FREG1), src1, src1w, src2, src2w));
1505 FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, FR(TMP_FREG2), src2, src2w, dst, dstw));
1506 }
1507 }
1508 else if (flags & SLOW_SRC1)
1509 FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, FR(TMP_FREG1), src1, src1w, dst, dstw));
1510 else if (flags & SLOW_SRC2)
1511 FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, FR(TMP_FREG2), src2, src2w, dst, dstw));
1512
1513 if (flags & SLOW_SRC1)
1514 src1 = TMP_FREG1;
1515 if (flags & SLOW_SRC2)
1516 src2 = TMP_FREG2;
1517
1518 switch (GET_OPCODE(op)) {
1519 case SLJIT_ADD_F64:
1520 FAIL_IF(push_inst(compiler, ADD_S | FMT(op) | FT(src2) | FS(src1) | FD(dst_r), MOVABLE_INS));
1521 break;
1522
1523 case SLJIT_SUB_F64:
1524 FAIL_IF(push_inst(compiler, SUB_S | FMT(op) | FT(src2) | FS(src1) | FD(dst_r), MOVABLE_INS));
1525 break;
1526
1527 case SLJIT_MUL_F64:
1528 FAIL_IF(push_inst(compiler, MUL_S | FMT(op) | FT(src2) | FS(src1) | FD(dst_r), MOVABLE_INS));
1529 break;
1530
1531 case SLJIT_DIV_F64:
1532 FAIL_IF(push_inst(compiler, DIV_S | FMT(op) | FT(src2) | FS(src1) | FD(dst_r), MOVABLE_INS));
1533 break;
1534 }
1535
1536 if (dst_r == TMP_FREG2)
1537 FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op), FR(TMP_FREG2), dst, dstw, 0, 0));
1538
1539 return SLJIT_SUCCESS;
1540 }
1541
1542 /* --------------------------------------------------------------------- */
1543 /* Other instructions */
1544 /* --------------------------------------------------------------------- */
1545
sljit_emit_fast_enter(struct sljit_compiler * compiler,sljit_s32 dst,sljit_sw dstw)1546 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_fast_enter(struct sljit_compiler *compiler, sljit_s32 dst, sljit_sw dstw)
1547 {
1548 CHECK_ERROR();
1549 CHECK(check_sljit_emit_fast_enter(compiler, dst, dstw));
1550 ADJUST_LOCAL_OFFSET(dst, dstw);
1551
1552 if (FAST_IS_REG(dst))
1553 return push_inst(compiler, ADDU_W | SA(RETURN_ADDR_REG) | TA(0) | D(dst), DR(dst));
1554
1555 /* Memory. */
1556 return emit_op_mem(compiler, WORD_DATA, RETURN_ADDR_REG, dst, dstw);
1557 }
1558
sljit_emit_fast_return(struct sljit_compiler * compiler,sljit_s32 src,sljit_sw srcw)1559 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_fast_return(struct sljit_compiler *compiler, sljit_s32 src, sljit_sw srcw)
1560 {
1561 CHECK_ERROR();
1562 CHECK(check_sljit_emit_fast_return(compiler, src, srcw));
1563 ADJUST_LOCAL_OFFSET(src, srcw);
1564
1565 if (FAST_IS_REG(src))
1566 FAIL_IF(push_inst(compiler, ADDU_W | S(src) | TA(0) | DA(RETURN_ADDR_REG), RETURN_ADDR_REG));
1567 else
1568 FAIL_IF(emit_op_mem(compiler, WORD_DATA | LOAD_DATA, RETURN_ADDR_REG, src, srcw));
1569
1570 FAIL_IF(push_inst(compiler, JR | SA(RETURN_ADDR_REG), UNMOVABLE_INS));
1571 return push_inst(compiler, NOP, UNMOVABLE_INS);
1572 }
1573
1574 /* --------------------------------------------------------------------- */
1575 /* Conditional instructions */
1576 /* --------------------------------------------------------------------- */
1577
sljit_emit_label(struct sljit_compiler * compiler)1578 SLJIT_API_FUNC_ATTRIBUTE struct sljit_label* sljit_emit_label(struct sljit_compiler *compiler)
1579 {
1580 struct sljit_label *label;
1581
1582 CHECK_ERROR_PTR();
1583 CHECK_PTR(check_sljit_emit_label(compiler));
1584
1585 if (compiler->last_label && compiler->last_label->size == compiler->size)
1586 return compiler->last_label;
1587
1588 label = (struct sljit_label*)ensure_abuf(compiler, sizeof(struct sljit_label));
1589 PTR_FAIL_IF(!label);
1590 set_label(label, compiler);
1591 compiler->delay_slot = UNMOVABLE_INS;
1592 return label;
1593 }
1594
1595 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
1596 #define JUMP_LENGTH 4
1597 #else
1598 #define JUMP_LENGTH 8
1599 #endif
1600
1601 #define BR_Z(src) \
1602 inst = BEQ | SA(src) | TA(0) | JUMP_LENGTH; \
1603 flags = IS_BIT26_COND; \
1604 delay_check = src;
1605
1606 #define BR_NZ(src) \
1607 inst = BNE | SA(src) | TA(0) | JUMP_LENGTH; \
1608 flags = IS_BIT26_COND; \
1609 delay_check = src;
1610
1611 #define BR_T() \
1612 inst = BC1T | JUMP_LENGTH; \
1613 flags = IS_BIT16_COND; \
1614 delay_check = FCSR_FCC;
1615
1616 #define BR_F() \
1617 inst = BC1F | JUMP_LENGTH; \
1618 flags = IS_BIT16_COND; \
1619 delay_check = FCSR_FCC;
1620
sljit_emit_jump(struct sljit_compiler * compiler,sljit_s32 type)1621 SLJIT_API_FUNC_ATTRIBUTE struct sljit_jump* sljit_emit_jump(struct sljit_compiler *compiler, sljit_s32 type)
1622 {
1623 struct sljit_jump *jump;
1624 sljit_ins inst;
1625 sljit_s32 flags = 0;
1626 sljit_s32 delay_check = UNMOVABLE_INS;
1627
1628 CHECK_ERROR_PTR();
1629 CHECK_PTR(check_sljit_emit_jump(compiler, type));
1630
1631 jump = (struct sljit_jump*)ensure_abuf(compiler, sizeof(struct sljit_jump));
1632 PTR_FAIL_IF(!jump);
1633 set_jump(jump, compiler, type & SLJIT_REWRITABLE_JUMP);
1634 type &= 0xff;
1635
1636 switch (type) {
1637 case SLJIT_EQUAL:
1638 BR_NZ(EQUAL_FLAG);
1639 break;
1640 case SLJIT_NOT_EQUAL:
1641 BR_Z(EQUAL_FLAG);
1642 break;
1643 case SLJIT_LESS:
1644 case SLJIT_GREATER:
1645 case SLJIT_SIG_LESS:
1646 case SLJIT_SIG_GREATER:
1647 case SLJIT_OVERFLOW:
1648 case SLJIT_MUL_OVERFLOW:
1649 BR_Z(OTHER_FLAG);
1650 break;
1651 case SLJIT_GREATER_EQUAL:
1652 case SLJIT_LESS_EQUAL:
1653 case SLJIT_SIG_GREATER_EQUAL:
1654 case SLJIT_SIG_LESS_EQUAL:
1655 case SLJIT_NOT_OVERFLOW:
1656 case SLJIT_MUL_NOT_OVERFLOW:
1657 BR_NZ(OTHER_FLAG);
1658 break;
1659 case SLJIT_NOT_EQUAL_F64:
1660 case SLJIT_GREATER_EQUAL_F64:
1661 case SLJIT_GREATER_F64:
1662 case SLJIT_ORDERED_F64:
1663 BR_T();
1664 break;
1665 case SLJIT_EQUAL_F64:
1666 case SLJIT_LESS_F64:
1667 case SLJIT_LESS_EQUAL_F64:
1668 case SLJIT_UNORDERED_F64:
1669 BR_F();
1670 break;
1671 default:
1672 /* Not conditional branch. */
1673 inst = 0;
1674 break;
1675 }
1676
1677 jump->flags |= flags;
1678 if (compiler->delay_slot == MOVABLE_INS || (compiler->delay_slot != UNMOVABLE_INS && compiler->delay_slot != delay_check))
1679 jump->flags |= IS_MOVABLE;
1680
1681 if (inst)
1682 PTR_FAIL_IF(push_inst(compiler, inst, UNMOVABLE_INS));
1683
1684 PTR_FAIL_IF(emit_const(compiler, TMP_REG2, 0));
1685
1686 if (type <= SLJIT_JUMP)
1687 PTR_FAIL_IF(push_inst(compiler, JR | S(TMP_REG2), UNMOVABLE_INS));
1688 else {
1689 jump->flags |= IS_JAL;
1690 PTR_FAIL_IF(push_inst(compiler, JALR | S(TMP_REG2) | DA(RETURN_ADDR_REG), UNMOVABLE_INS));
1691 }
1692
1693 jump->addr = compiler->size;
1694 PTR_FAIL_IF(push_inst(compiler, NOP, UNMOVABLE_INS));
1695 return jump;
1696 }
1697
1698 #define RESOLVE_IMM1() \
1699 if (src1 & SLJIT_IMM) { \
1700 if (src1w) { \
1701 PTR_FAIL_IF(load_immediate(compiler, DR(TMP_REG1), src1w)); \
1702 src1 = TMP_REG1; \
1703 } \
1704 else \
1705 src1 = 0; \
1706 }
1707
1708 #define RESOLVE_IMM2() \
1709 if (src2 & SLJIT_IMM) { \
1710 if (src2w) { \
1711 PTR_FAIL_IF(load_immediate(compiler, DR(TMP_REG2), src2w)); \
1712 src2 = TMP_REG2; \
1713 } \
1714 else \
1715 src2 = 0; \
1716 }
1717
sljit_emit_cmp(struct sljit_compiler * compiler,sljit_s32 type,sljit_s32 src1,sljit_sw src1w,sljit_s32 src2,sljit_sw src2w)1718 SLJIT_API_FUNC_ATTRIBUTE struct sljit_jump* sljit_emit_cmp(struct sljit_compiler *compiler, sljit_s32 type,
1719 sljit_s32 src1, sljit_sw src1w,
1720 sljit_s32 src2, sljit_sw src2w)
1721 {
1722 struct sljit_jump *jump;
1723 sljit_s32 flags;
1724 sljit_ins inst;
1725
1726 CHECK_ERROR_PTR();
1727 CHECK_PTR(check_sljit_emit_cmp(compiler, type, src1, src1w, src2, src2w));
1728 ADJUST_LOCAL_OFFSET(src1, src1w);
1729 ADJUST_LOCAL_OFFSET(src2, src2w);
1730
1731 compiler->cache_arg = 0;
1732 compiler->cache_argw = 0;
1733 flags = ((type & SLJIT_I32_OP) ? INT_DATA : WORD_DATA) | LOAD_DATA;
1734 if (src1 & SLJIT_MEM) {
1735 PTR_FAIL_IF(emit_op_mem2(compiler, flags, DR(TMP_REG1), src1, src1w, src2, src2w));
1736 src1 = TMP_REG1;
1737 }
1738 if (src2 & SLJIT_MEM) {
1739 PTR_FAIL_IF(emit_op_mem2(compiler, flags, DR(TMP_REG2), src2, src2w, 0, 0));
1740 src2 = TMP_REG2;
1741 }
1742
1743 jump = (struct sljit_jump*)ensure_abuf(compiler, sizeof(struct sljit_jump));
1744 PTR_FAIL_IF(!jump);
1745 set_jump(jump, compiler, type & SLJIT_REWRITABLE_JUMP);
1746 type &= 0xff;
1747
1748 if (type <= SLJIT_NOT_EQUAL) {
1749 RESOLVE_IMM1();
1750 RESOLVE_IMM2();
1751 jump->flags |= IS_BIT26_COND;
1752 if (compiler->delay_slot == MOVABLE_INS || (compiler->delay_slot != UNMOVABLE_INS && compiler->delay_slot != DR(src1) && compiler->delay_slot != DR(src2)))
1753 jump->flags |= IS_MOVABLE;
1754 PTR_FAIL_IF(push_inst(compiler, (type == SLJIT_EQUAL ? BNE : BEQ) | S(src1) | T(src2) | JUMP_LENGTH, UNMOVABLE_INS));
1755 }
1756 else if (type >= SLJIT_SIG_LESS && (((src1 & SLJIT_IMM) && (src1w == 0)) || ((src2 & SLJIT_IMM) && (src2w == 0)))) {
1757 inst = NOP;
1758 if ((src1 & SLJIT_IMM) && (src1w == 0)) {
1759 RESOLVE_IMM2();
1760 switch (type) {
1761 case SLJIT_SIG_LESS:
1762 inst = BLEZ;
1763 jump->flags |= IS_BIT26_COND;
1764 break;
1765 case SLJIT_SIG_GREATER_EQUAL:
1766 inst = BGTZ;
1767 jump->flags |= IS_BIT26_COND;
1768 break;
1769 case SLJIT_SIG_GREATER:
1770 inst = BGEZ;
1771 jump->flags |= IS_BIT16_COND;
1772 break;
1773 case SLJIT_SIG_LESS_EQUAL:
1774 inst = BLTZ;
1775 jump->flags |= IS_BIT16_COND;
1776 break;
1777 }
1778 src1 = src2;
1779 }
1780 else {
1781 RESOLVE_IMM1();
1782 switch (type) {
1783 case SLJIT_SIG_LESS:
1784 inst = BGEZ;
1785 jump->flags |= IS_BIT16_COND;
1786 break;
1787 case SLJIT_SIG_GREATER_EQUAL:
1788 inst = BLTZ;
1789 jump->flags |= IS_BIT16_COND;
1790 break;
1791 case SLJIT_SIG_GREATER:
1792 inst = BLEZ;
1793 jump->flags |= IS_BIT26_COND;
1794 break;
1795 case SLJIT_SIG_LESS_EQUAL:
1796 inst = BGTZ;
1797 jump->flags |= IS_BIT26_COND;
1798 break;
1799 }
1800 }
1801 PTR_FAIL_IF(push_inst(compiler, inst | S(src1) | JUMP_LENGTH, UNMOVABLE_INS));
1802 }
1803 else {
1804 if (type == SLJIT_LESS || type == SLJIT_GREATER_EQUAL || type == SLJIT_SIG_LESS || type == SLJIT_SIG_GREATER_EQUAL) {
1805 RESOLVE_IMM1();
1806 if ((src2 & SLJIT_IMM) && src2w <= SIMM_MAX && src2w >= SIMM_MIN)
1807 PTR_FAIL_IF(push_inst(compiler, (type <= SLJIT_LESS_EQUAL ? SLTIU : SLTI) | S(src1) | T(TMP_REG1) | IMM(src2w), DR(TMP_REG1)));
1808 else {
1809 RESOLVE_IMM2();
1810 PTR_FAIL_IF(push_inst(compiler, (type <= SLJIT_LESS_EQUAL ? SLTU : SLT) | S(src1) | T(src2) | D(TMP_REG1), DR(TMP_REG1)));
1811 }
1812 type = (type == SLJIT_LESS || type == SLJIT_SIG_LESS) ? SLJIT_NOT_EQUAL : SLJIT_EQUAL;
1813 }
1814 else {
1815 RESOLVE_IMM2();
1816 if ((src1 & SLJIT_IMM) && src1w <= SIMM_MAX && src1w >= SIMM_MIN)
1817 PTR_FAIL_IF(push_inst(compiler, (type <= SLJIT_LESS_EQUAL ? SLTIU : SLTI) | S(src2) | T(TMP_REG1) | IMM(src1w), DR(TMP_REG1)));
1818 else {
1819 RESOLVE_IMM1();
1820 PTR_FAIL_IF(push_inst(compiler, (type <= SLJIT_LESS_EQUAL ? SLTU : SLT) | S(src2) | T(src1) | D(TMP_REG1), DR(TMP_REG1)));
1821 }
1822 type = (type == SLJIT_GREATER || type == SLJIT_SIG_GREATER) ? SLJIT_NOT_EQUAL : SLJIT_EQUAL;
1823 }
1824
1825 jump->flags |= IS_BIT26_COND;
1826 PTR_FAIL_IF(push_inst(compiler, (type == SLJIT_EQUAL ? BNE : BEQ) | S(TMP_REG1) | TA(0) | JUMP_LENGTH, UNMOVABLE_INS));
1827 }
1828
1829 PTR_FAIL_IF(emit_const(compiler, TMP_REG2, 0));
1830 PTR_FAIL_IF(push_inst(compiler, JR | S(TMP_REG2), UNMOVABLE_INS));
1831 jump->addr = compiler->size;
1832 PTR_FAIL_IF(push_inst(compiler, NOP, UNMOVABLE_INS));
1833 return jump;
1834 }
1835
1836 #undef RESOLVE_IMM1
1837 #undef RESOLVE_IMM2
1838
1839 #undef JUMP_LENGTH
1840 #undef BR_Z
1841 #undef BR_NZ
1842 #undef BR_T
1843 #undef BR_F
1844
1845 #undef FLOAT_DATA
1846 #undef FMT
1847
sljit_emit_ijump(struct sljit_compiler * compiler,sljit_s32 type,sljit_s32 src,sljit_sw srcw)1848 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_ijump(struct sljit_compiler *compiler, sljit_s32 type, sljit_s32 src, sljit_sw srcw)
1849 {
1850 struct sljit_jump *jump = NULL;
1851
1852 CHECK_ERROR();
1853 CHECK(check_sljit_emit_ijump(compiler, type, src, srcw));
1854 ADJUST_LOCAL_OFFSET(src, srcw);
1855
1856 if (src & SLJIT_IMM) {
1857 jump = (struct sljit_jump*)ensure_abuf(compiler, sizeof(struct sljit_jump));
1858 FAIL_IF(!jump);
1859 set_jump(jump, compiler, JUMP_ADDR | ((type >= SLJIT_FAST_CALL) ? IS_JAL : 0));
1860 jump->u.target = srcw;
1861
1862 if (compiler->delay_slot != UNMOVABLE_INS)
1863 jump->flags |= IS_MOVABLE;
1864
1865 FAIL_IF(emit_const(compiler, TMP_REG2, 0));
1866 src = TMP_REG2;
1867 }
1868 else if (src & SLJIT_MEM) {
1869 FAIL_IF(emit_op_mem(compiler, WORD_DATA | LOAD_DATA, DR(TMP_REG2), src, srcw));
1870 src = TMP_REG2;
1871 }
1872
1873 FAIL_IF(push_inst(compiler, JR | S(src), UNMOVABLE_INS));
1874 if (jump)
1875 jump->addr = compiler->size;
1876 FAIL_IF(push_inst(compiler, NOP, UNMOVABLE_INS));
1877 return SLJIT_SUCCESS;
1878 }
1879
sljit_emit_op_flags(struct sljit_compiler * compiler,sljit_s32 op,sljit_s32 dst,sljit_sw dstw,sljit_s32 type)1880 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_op_flags(struct sljit_compiler *compiler, sljit_s32 op,
1881 sljit_s32 dst, sljit_sw dstw,
1882 sljit_s32 type)
1883 {
1884 sljit_s32 src_ar, dst_ar;
1885 sljit_s32 saved_op = op;
1886 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
1887 sljit_s32 mem_type = WORD_DATA;
1888 #else
1889 sljit_s32 mem_type = (op & SLJIT_I32_OP) ? (INT_DATA | SIGNED_DATA) : WORD_DATA;
1890 #endif
1891
1892 CHECK_ERROR();
1893 CHECK(check_sljit_emit_op_flags(compiler, op, dst, dstw, type));
1894 ADJUST_LOCAL_OFFSET(dst, dstw);
1895
1896 op = GET_OPCODE(op);
1897 #if (defined SLJIT_CONFIG_MIPS_64 && SLJIT_CONFIG_MIPS_64)
1898 if (op == SLJIT_MOV_S32)
1899 mem_type = INT_DATA | SIGNED_DATA;
1900 #endif
1901 dst_ar = DR((op < SLJIT_ADD && FAST_IS_REG(dst)) ? dst : TMP_REG2);
1902
1903 compiler->cache_arg = 0;
1904 compiler->cache_argw = 0;
1905
1906 if (op >= SLJIT_ADD && (dst & SLJIT_MEM))
1907 FAIL_IF(emit_op_mem2(compiler, mem_type | LOAD_DATA, DR(TMP_REG1), dst, dstw, dst, dstw));
1908
1909 switch (type & 0xff) {
1910 case SLJIT_EQUAL:
1911 case SLJIT_NOT_EQUAL:
1912 FAIL_IF(push_inst(compiler, SLTIU | SA(EQUAL_FLAG) | TA(dst_ar) | IMM(1), dst_ar));
1913 src_ar = dst_ar;
1914 break;
1915 case SLJIT_MUL_OVERFLOW:
1916 case SLJIT_MUL_NOT_OVERFLOW:
1917 FAIL_IF(push_inst(compiler, SLTIU | SA(OTHER_FLAG) | TA(dst_ar) | IMM(1), dst_ar));
1918 src_ar = dst_ar;
1919 type ^= 0x1; /* Flip type bit for the XORI below. */
1920 break;
1921 case SLJIT_GREATER_F64:
1922 case SLJIT_LESS_EQUAL_F64:
1923 type ^= 0x1; /* Flip type bit for the XORI below. */
1924 case SLJIT_EQUAL_F64:
1925 case SLJIT_NOT_EQUAL_F64:
1926 case SLJIT_LESS_F64:
1927 case SLJIT_GREATER_EQUAL_F64:
1928 case SLJIT_UNORDERED_F64:
1929 case SLJIT_ORDERED_F64:
1930 FAIL_IF(push_inst(compiler, CFC1 | TA(dst_ar) | DA(FCSR_REG), dst_ar));
1931 FAIL_IF(push_inst(compiler, SRL | TA(dst_ar) | DA(dst_ar) | SH_IMM(23), dst_ar));
1932 FAIL_IF(push_inst(compiler, ANDI | SA(dst_ar) | TA(dst_ar) | IMM(1), dst_ar));
1933 src_ar = dst_ar;
1934 break;
1935
1936 default:
1937 src_ar = OTHER_FLAG;
1938 break;
1939 }
1940
1941 if (type & 0x1) {
1942 FAIL_IF(push_inst(compiler, XORI | SA(src_ar) | TA(dst_ar) | IMM(1), dst_ar));
1943 src_ar = dst_ar;
1944 }
1945
1946 if (op < SLJIT_ADD) {
1947 if (dst & SLJIT_MEM)
1948 return emit_op_mem(compiler, mem_type, src_ar, dst, dstw);
1949
1950 if (src_ar != dst_ar)
1951 return push_inst(compiler, ADDU_W | SA(src_ar) | TA(0) | DA(dst_ar), dst_ar);
1952 return SLJIT_SUCCESS;
1953 }
1954
1955 /* OTHER_FLAG cannot be specified as src2 argument at the moment. */
1956 if (DR(TMP_REG2) != src_ar)
1957 FAIL_IF(push_inst(compiler, ADDU_W | SA(src_ar) | TA(0) | D(TMP_REG2), DR(TMP_REG2)));
1958
1959 mem_type |= CUMULATIVE_OP | LOGICAL_OP | IMM_OP | ALT_KEEP_CACHE;
1960
1961 if (dst & SLJIT_MEM)
1962 return emit_op(compiler, saved_op, mem_type, dst, dstw, TMP_REG1, 0, TMP_REG2, 0);
1963 return emit_op(compiler, saved_op, mem_type, dst, dstw, dst, dstw, TMP_REG2, 0);
1964 }
1965
sljit_emit_cmov(struct sljit_compiler * compiler,sljit_s32 type,sljit_s32 dst_reg,sljit_s32 src,sljit_sw srcw)1966 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_cmov(struct sljit_compiler *compiler, sljit_s32 type,
1967 sljit_s32 dst_reg,
1968 sljit_s32 src, sljit_sw srcw)
1969 {
1970 #if (defined SLJIT_MIPS_R1 && SLJIT_MIPS_R1)
1971 sljit_ins ins;
1972 #endif
1973
1974 CHECK_ERROR();
1975 CHECK(check_sljit_emit_cmov(compiler, type, dst_reg, src, srcw));
1976
1977 #if (defined SLJIT_MIPS_R1 && SLJIT_MIPS_R1)
1978
1979 if (SLJIT_UNLIKELY(src & SLJIT_IMM)) {
1980 #if (defined SLJIT_CONFIG_MIPS_64 && SLJIT_CONFIG_MIPS_64)
1981 if (dst_reg & SLJIT_I32_OP)
1982 srcw = (sljit_s32)srcw;
1983 #endif
1984 FAIL_IF(load_immediate(compiler, DR(TMP_REG1), srcw));
1985 src = TMP_REG1;
1986 srcw = 0;
1987 }
1988
1989 dst_reg &= ~SLJIT_I32_OP;
1990
1991 switch (type & 0xff) {
1992 case SLJIT_EQUAL:
1993 ins = MOVZ | TA(EQUAL_FLAG);
1994 break;
1995 case SLJIT_NOT_EQUAL:
1996 ins = MOVN | TA(EQUAL_FLAG);
1997 break;
1998 case SLJIT_LESS:
1999 case SLJIT_GREATER:
2000 case SLJIT_SIG_LESS:
2001 case SLJIT_SIG_GREATER:
2002 case SLJIT_OVERFLOW:
2003 case SLJIT_MUL_OVERFLOW:
2004 ins = MOVN | TA(OTHER_FLAG);
2005 break;
2006 case SLJIT_GREATER_EQUAL:
2007 case SLJIT_LESS_EQUAL:
2008 case SLJIT_SIG_GREATER_EQUAL:
2009 case SLJIT_SIG_LESS_EQUAL:
2010 case SLJIT_NOT_OVERFLOW:
2011 case SLJIT_MUL_NOT_OVERFLOW:
2012 ins = MOVZ | TA(OTHER_FLAG);
2013 break;
2014 case SLJIT_EQUAL_F64:
2015 case SLJIT_LESS_F64:
2016 case SLJIT_LESS_EQUAL_F64:
2017 case SLJIT_UNORDERED_F64:
2018 ins = MOVT;
2019 break;
2020 case SLJIT_NOT_EQUAL_F64:
2021 case SLJIT_GREATER_EQUAL_F64:
2022 case SLJIT_GREATER_F64:
2023 case SLJIT_ORDERED_F64:
2024 ins = MOVF;
2025 break;
2026 default:
2027 ins = MOVZ | TA(OTHER_FLAG);
2028 SLJIT_UNREACHABLE();
2029 break;
2030 }
2031
2032 return push_inst(compiler, ins | S(src) | D(dst_reg), DR(dst_reg));
2033
2034 #else
2035 return sljit_emit_cmov_generic(compiler, type, dst_reg, src, srcw);
2036 #endif
2037 }
2038
sljit_emit_const(struct sljit_compiler * compiler,sljit_s32 dst,sljit_sw dstw,sljit_sw init_value)2039 SLJIT_API_FUNC_ATTRIBUTE struct sljit_const* sljit_emit_const(struct sljit_compiler *compiler, sljit_s32 dst, sljit_sw dstw, sljit_sw init_value)
2040 {
2041 struct sljit_const *const_;
2042 sljit_s32 reg;
2043
2044 CHECK_ERROR_PTR();
2045 CHECK_PTR(check_sljit_emit_const(compiler, dst, dstw, init_value));
2046 ADJUST_LOCAL_OFFSET(dst, dstw);
2047
2048 const_ = (struct sljit_const*)ensure_abuf(compiler, sizeof(struct sljit_const));
2049 PTR_FAIL_IF(!const_);
2050 set_const(const_, compiler);
2051
2052 reg = FAST_IS_REG(dst) ? dst : TMP_REG2;
2053
2054 PTR_FAIL_IF(emit_const(compiler, reg, init_value));
2055
2056 if (dst & SLJIT_MEM)
2057 PTR_FAIL_IF(emit_op(compiler, SLJIT_MOV, WORD_DATA, dst, dstw, TMP_REG1, 0, TMP_REG2, 0));
2058 return const_;
2059 }
2060
