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
29 #ifndef __mips_hard_float
30 /* Disable automatic detection, covers both -msoft-float and -mno-float */
31 #undef SLJIT_IS_FPU_AVAILABLE
32 #define SLJIT_IS_FPU_AVAILABLE 0
33 #endif
34
sljit_get_platform_name(void)35 SLJIT_API_FUNC_ATTRIBUTE const char* sljit_get_platform_name(void)
36 {
37 #if (defined SLJIT_MIPS_REV && SLJIT_MIPS_REV >= 6)
38
39 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
40 return "MIPS32-R6" SLJIT_CPUINFO;
41 #else /* !SLJIT_CONFIG_MIPS_32 */
42 return "MIPS64-R6" SLJIT_CPUINFO;
43 #endif /* SLJIT_CONFIG_MIPS_32 */
44
45 #elif (defined SLJIT_MIPS_REV && SLJIT_MIPS_REV >= 1)
46
47 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
48 return "MIPS32-R1" SLJIT_CPUINFO;
49 #else /* !SLJIT_CONFIG_MIPS_32 */
50 return "MIPS64-R1" SLJIT_CPUINFO;
51 #endif /* SLJIT_CONFIG_MIPS_32 */
52
53 #else /* SLJIT_MIPS_REV < 1 */
54 return "MIPS III" SLJIT_CPUINFO;
55 #endif /* SLJIT_MIPS_REV >= 6 */
56 }
57
58 /* Length of an instruction word
59 Both for mips-32 and mips-64 */
60 typedef sljit_u32 sljit_ins;
61
62 #define TMP_REG1 (SLJIT_NUMBER_OF_REGISTERS + 2)
63 #define TMP_REG2 (SLJIT_NUMBER_OF_REGISTERS + 3)
64 #define TMP_REG3 (SLJIT_NUMBER_OF_REGISTERS + 4)
65
66 /* For position independent code, t9 must contain the function address. */
67 #define PIC_ADDR_REG TMP_REG2
68
69 /* Floating point status register. */
70 #define FCSR_REG 31
71 /* Return address register. */
72 #define RETURN_ADDR_REG 31
73
74 /* Flags are kept in volatile registers. */
75 #define EQUAL_FLAG 3
76 #define OTHER_FLAG 1
77
78 #define TMP_FREG1 (SLJIT_NUMBER_OF_FLOAT_REGISTERS + 1)
79 #define TMP_FREG2 (SLJIT_NUMBER_OF_FLOAT_REGISTERS + 2)
80 #define TMP_FREG3 (SLJIT_NUMBER_OF_FLOAT_REGISTERS + 3)
81
82 static const sljit_u8 reg_map[SLJIT_NUMBER_OF_REGISTERS + 5] = {
83 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
84 };
85
86 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
87
88 static const sljit_u8 freg_map[SLJIT_NUMBER_OF_FLOAT_REGISTERS + 4] = {
89 0, 0, 14, 2, 4, 6, 8, 12, 10, 16
90 };
91
92 #else
93
94 static const sljit_u8 freg_map[SLJIT_NUMBER_OF_FLOAT_REGISTERS + 4] = {
95 0, 0, 13, 14, 15, 16, 17, 12, 18, 10
96 };
97
98 #endif
99
100 /* --------------------------------------------------------------------- */
101 /* Instrucion forms */
102 /* --------------------------------------------------------------------- */
103
104 #define S(s) (reg_map[s] << 21)
105 #define T(t) (reg_map[t] << 16)
106 #define D(d) (reg_map[d] << 11)
107 #define FT(t) (freg_map[t] << 16)
108 #define FS(s) (freg_map[s] << 11)
109 #define FD(d) (freg_map[d] << 6)
110 /* Absolute registers. */
111 #define SA(s) ((s) << 21)
112 #define TA(t) ((t) << 16)
113 #define DA(d) ((d) << 11)
114 #define IMM(imm) ((imm) & 0xffff)
115 #define SH_IMM(imm) ((imm) << 6)
116
117 #define DR(dr) (reg_map[dr])
118 #define FR(dr) (freg_map[dr])
119 #define HI(opcode) ((opcode) << 26)
120 #define LO(opcode) (opcode)
121 #if (defined SLJIT_MIPS_REV && SLJIT_MIPS_REV >= 6)
122 /* CMP.cond.fmt */
123 /* S = (20 << 21) D = (21 << 21) */
124 #define CMP_FMT_S (20 << 21)
125 #endif /* SLJIT_MIPS_REV >= 6 */
126 /* S = (16 << 21) D = (17 << 21) */
127 #define FMT_S (16 << 21)
128 #define FMT_D (17 << 21)
129
130 #define ABS_S (HI(17) | FMT_S | LO(5))
131 #define ADD_S (HI(17) | FMT_S | LO(0))
132 #define ADDIU (HI(9))
133 #define ADDU (HI(0) | LO(33))
134 #define AND (HI(0) | LO(36))
135 #define ANDI (HI(12))
136 #define B (HI(4))
137 #define BAL (HI(1) | (17 << 16))
138 #if (defined SLJIT_MIPS_REV && SLJIT_MIPS_REV >= 6)
139 #define BC1EQZ (HI(17) | (9 << 21) | FT(TMP_FREG3))
140 #define BC1NEZ (HI(17) | (13 << 21) | FT(TMP_FREG3))
141 #else /* SLJIT_MIPS_REV < 6 */
142 #define BC1F (HI(17) | (8 << 21))
143 #define BC1T (HI(17) | (8 << 21) | (1 << 16))
144 #endif /* SLJIT_MIPS_REV >= 6 */
145 #define BEQ (HI(4))
146 #define BGEZ (HI(1) | (1 << 16))
147 #define BGTZ (HI(7))
148 #define BLEZ (HI(6))
149 #define BLTZ (HI(1) | (0 << 16))
150 #define BNE (HI(5))
151 #define BREAK (HI(0) | LO(13))
152 #define CFC1 (HI(17) | (2 << 21))
153 #if (defined SLJIT_MIPS_REV && SLJIT_MIPS_REV >= 6)
154 #define C_UEQ_S (HI(17) | CMP_FMT_S | LO(3))
155 #define C_ULE_S (HI(17) | CMP_FMT_S | LO(7))
156 #define C_ULT_S (HI(17) | CMP_FMT_S | LO(5))
157 #define C_UN_S (HI(17) | CMP_FMT_S | LO(1))
158 #define C_FD (FD(TMP_FREG3))
159 #else /* SLJIT_MIPS_REV < 6 */
160 #define C_UEQ_S (HI(17) | FMT_S | LO(51))
161 #define C_ULE_S (HI(17) | FMT_S | LO(55))
162 #define C_ULT_S (HI(17) | FMT_S | LO(53))
163 #define C_UN_S (HI(17) | FMT_S | LO(49))
164 #define C_FD (0)
165 #endif /* SLJIT_MIPS_REV >= 6 */
166 #define CVT_S_S (HI(17) | FMT_S | LO(32))
167 #define DADDIU (HI(25))
168 #define DADDU (HI(0) | LO(45))
169 #if (defined SLJIT_MIPS_REV && SLJIT_MIPS_REV >= 6)
170 #define DDIV (HI(0) | (2 << 6) | LO(30))
171 #define DDIVU (HI(0) | (2 << 6) | LO(31))
172 #define DMOD (HI(0) | (3 << 6) | LO(30))
173 #define DMODU (HI(0) | (3 << 6) | LO(31))
174 #define DIV (HI(0) | (2 << 6) | LO(26))
175 #define DIVU (HI(0) | (2 << 6) | LO(27))
176 #define DMUH (HI(0) | (3 << 6) | LO(28))
177 #define DMUHU (HI(0) | (3 << 6) | LO(29))
178 #define DMUL (HI(0) | (2 << 6) | LO(28))
179 #define DMULU (HI(0) | (2 << 6) | LO(29))
180 #else /* SLJIT_MIPS_REV < 6 */
181 #define DDIV (HI(0) | LO(30))
182 #define DDIVU (HI(0) | LO(31))
183 #define DIV (HI(0) | LO(26))
184 #define DIVU (HI(0) | LO(27))
185 #define DMULT (HI(0) | LO(28))
186 #define DMULTU (HI(0) | LO(29))
187 #endif /* SLJIT_MIPS_REV >= 6 */
188 #define DIV_S (HI(17) | FMT_S | LO(3))
189 #define DSLL (HI(0) | LO(56))
190 #define DSLL32 (HI(0) | LO(60))
191 #define DSLLV (HI(0) | LO(20))
192 #define DSRA (HI(0) | LO(59))
193 #define DSRA32 (HI(0) | LO(63))
194 #define DSRAV (HI(0) | LO(23))
195 #define DSRL (HI(0) | LO(58))
196 #define DSRL32 (HI(0) | LO(62))
197 #define DSRLV (HI(0) | LO(22))
198 #define DSUBU (HI(0) | LO(47))
199 #define J (HI(2))
200 #define JAL (HI(3))
201 #define JALR (HI(0) | LO(9))
202 #if (defined SLJIT_MIPS_REV && SLJIT_MIPS_REV >= 6)
203 #define JR (HI(0) | LO(9))
204 #else /* SLJIT_MIPS_REV < 6 */
205 #define JR (HI(0) | LO(8))
206 #endif /* SLJIT_MIPS_REV >= 6 */
207 #define LD (HI(55))
208 #define LUI (HI(15))
209 #define LW (HI(35))
210 #define MFC1 (HI(17))
211 #if (defined SLJIT_MIPS_REV && SLJIT_MIPS_REV >= 6)
212 #define MOD (HI(0) | (3 << 6) | LO(26))
213 #define MODU (HI(0) | (3 << 6) | LO(27))
214 #else /* SLJIT_MIPS_REV < 6 */
215 #define MFHI (HI(0) | LO(16))
216 #define MFLO (HI(0) | LO(18))
217 #endif /* SLJIT_MIPS_REV >= 6 */
218 #define MOV_S (HI(17) | FMT_S | LO(6))
219 #define MTC1 (HI(17) | (4 << 21))
220 #if (defined SLJIT_MIPS_REV && SLJIT_MIPS_REV >= 6)
221 #define MUH (HI(0) | (3 << 6) | LO(24))
222 #define MUHU (HI(0) | (3 << 6) | LO(25))
223 #define MUL (HI(0) | (2 << 6) | LO(24))
224 #define MULU (HI(0) | (2 << 6) | LO(25))
225 #else /* SLJIT_MIPS_REV < 6 */
226 #define MULT (HI(0) | LO(24))
227 #define MULTU (HI(0) | LO(25))
228 #endif /* SLJIT_MIPS_REV >= 6 */
229 #define MUL_S (HI(17) | FMT_S | LO(2))
230 #define NEG_S (HI(17) | FMT_S | LO(7))
231 #define NOP (HI(0) | LO(0))
232 #define NOR (HI(0) | LO(39))
233 #define OR (HI(0) | LO(37))
234 #define ORI (HI(13))
235 #define SD (HI(63))
236 #define SDC1 (HI(61))
237 #define SLT (HI(0) | LO(42))
238 #define SLTI (HI(10))
239 #define SLTIU (HI(11))
240 #define SLTU (HI(0) | LO(43))
241 #define SLL (HI(0) | LO(0))
242 #define SLLV (HI(0) | LO(4))
243 #define SRL (HI(0) | LO(2))
244 #define SRLV (HI(0) | LO(6))
245 #define SRA (HI(0) | LO(3))
246 #define SRAV (HI(0) | LO(7))
247 #define SUB_S (HI(17) | FMT_S | LO(1))
248 #define SUBU (HI(0) | LO(35))
249 #define SW (HI(43))
250 #define SWC1 (HI(57))
251 #define TRUNC_W_S (HI(17) | FMT_S | LO(13))
252 #define XOR (HI(0) | LO(38))
253 #define XORI (HI(14))
254
255 #if (defined SLJIT_MIPS_REV && SLJIT_MIPS_REV >= 1)
256 #define CLZ (HI(28) | LO(32))
257 #if (defined SLJIT_MIPS_REV && SLJIT_MIPS_REV >= 6)
258 #define DCLZ (LO(18))
259 #else /* SLJIT_MIPS_REV < 6 */
260 #define DCLZ (HI(28) | LO(36))
261 #define MOVF (HI(0) | (0 << 16) | LO(1))
262 #define MOVN (HI(0) | LO(11))
263 #define MOVT (HI(0) | (1 << 16) | LO(1))
264 #define MOVZ (HI(0) | LO(10))
265 #define MUL (HI(28) | LO(2))
266 #endif /* SLJIT_MIPS_REV >= 6 */
267 #define PREF (HI(51))
268 #define PREFX (HI(19) | LO(15))
269 #define SEB (HI(31) | (16 << 6) | LO(32))
270 #define SEH (HI(31) | (24 << 6) | LO(32))
271 #endif /* SLJIT_MIPS_REV >= 1 */
272
273 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
274 #define ADDU_W ADDU
275 #define ADDIU_W ADDIU
276 #define SLL_W SLL
277 #define SUBU_W SUBU
278 #else
279 #define ADDU_W DADDU
280 #define ADDIU_W DADDIU
281 #define SLL_W DSLL
282 #define SUBU_W DSUBU
283 #endif
284
285 #define SIMM_MAX (0x7fff)
286 #define SIMM_MIN (-0x8000)
287 #define UIMM_MAX (0xffff)
288
289 /* dest_reg is the absolute name of the register
290 Useful for reordering instructions in the delay slot. */
push_inst(struct sljit_compiler * compiler,sljit_ins ins,sljit_s32 delay_slot)291 static sljit_s32 push_inst(struct sljit_compiler *compiler, sljit_ins ins, sljit_s32 delay_slot)
292 {
293 sljit_ins *ptr = (sljit_ins*)ensure_buf(compiler, sizeof(sljit_ins));
294 SLJIT_ASSERT(delay_slot == MOVABLE_INS || delay_slot >= UNMOVABLE_INS
295 || delay_slot == ((ins >> 11) & 0x1f) || delay_slot == ((ins >> 16) & 0x1f));
296 FAIL_IF(!ptr);
297 *ptr = ins;
298 compiler->size++;
299 compiler->delay_slot = delay_slot;
300 return SLJIT_SUCCESS;
301 }
302
invert_branch(sljit_s32 flags)303 static SLJIT_INLINE sljit_ins invert_branch(sljit_s32 flags)
304 {
305 if (flags & IS_BIT26_COND)
306 return (1 << 26);
307 #if (defined SLJIT_MIPS_REV && SLJIT_MIPS_REV >= 6)
308 if (flags & IS_BIT23_COND)
309 return (1 << 23);
310 #endif /* SLJIT_MIPS_REV >= 6 */
311 return (1 << 16);
312 }
313
detect_jump_type(struct sljit_jump * jump,sljit_ins * code_ptr,sljit_ins * code,sljit_sw executable_offset)314 static SLJIT_INLINE sljit_ins* detect_jump_type(struct sljit_jump *jump, sljit_ins *code_ptr, sljit_ins *code, sljit_sw executable_offset)
315 {
316 sljit_sw diff;
317 sljit_uw target_addr;
318 sljit_ins *inst;
319 sljit_ins saved_inst;
320
321 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
322 if (jump->flags & (SLJIT_REWRITABLE_JUMP | IS_CALL))
323 return code_ptr;
324 #else
325 if (jump->flags & SLJIT_REWRITABLE_JUMP)
326 return code_ptr;
327 #endif
328
329 if (jump->flags & JUMP_ADDR)
330 target_addr = jump->u.target;
331 else {
332 SLJIT_ASSERT(jump->flags & JUMP_LABEL);
333 target_addr = (sljit_uw)(code + jump->u.label->size) + (sljit_uw)executable_offset;
334 }
335
336 inst = (sljit_ins *)jump->addr;
337 if (jump->flags & IS_COND)
338 inst--;
339
340 #if (defined SLJIT_CONFIG_MIPS_64 && SLJIT_CONFIG_MIPS_64)
341 if (jump->flags & IS_CALL)
342 goto keep_address;
343 #endif
344
345 /* B instructions. */
346 if (jump->flags & IS_MOVABLE) {
347 diff = ((sljit_sw)target_addr - (sljit_sw)inst - executable_offset) >> 2;
348 if (diff <= SIMM_MAX && diff >= SIMM_MIN) {
349 jump->flags |= PATCH_B;
350
351 if (!(jump->flags & IS_COND)) {
352 inst[0] = inst[-1];
353 inst[-1] = (jump->flags & IS_JAL) ? BAL : B;
354 jump->addr -= sizeof(sljit_ins);
355 return inst;
356 }
357 saved_inst = inst[0];
358 inst[0] = inst[-1];
359 inst[-1] = saved_inst ^ invert_branch(jump->flags);
360 jump->addr -= 2 * sizeof(sljit_ins);
361 return inst;
362 }
363 }
364 else {
365 diff = ((sljit_sw)target_addr - (sljit_sw)(inst + 1) - executable_offset) >> 2;
366 if (diff <= SIMM_MAX && diff >= SIMM_MIN) {
367 jump->flags |= PATCH_B;
368
369 if (!(jump->flags & IS_COND)) {
370 inst[0] = (jump->flags & IS_JAL) ? BAL : B;
371 inst[1] = NOP;
372 return inst + 1;
373 }
374 inst[0] = inst[0] ^ invert_branch(jump->flags);
375 inst[1] = NOP;
376 jump->addr -= sizeof(sljit_ins);
377 return inst + 1;
378 }
379 }
380
381 if (jump->flags & IS_COND) {
382 if ((jump->flags & IS_MOVABLE) && (target_addr & ~0xfffffff) == ((jump->addr + 2 * sizeof(sljit_ins)) & ~0xfffffff)) {
383 jump->flags |= PATCH_J;
384 saved_inst = inst[0];
385 inst[0] = inst[-1];
386 inst[-1] = (saved_inst & 0xffff0000) | 3;
387 inst[1] = J;
388 inst[2] = NOP;
389 return inst + 2;
390 }
391 else if ((target_addr & ~0xfffffff) == ((jump->addr + 3 * sizeof(sljit_ins)) & ~0xfffffff)) {
392 jump->flags |= PATCH_J;
393 inst[0] = (inst[0] & 0xffff0000) | 3;
394 inst[1] = NOP;
395 inst[2] = J;
396 inst[3] = NOP;
397 jump->addr += sizeof(sljit_ins);
398 return inst + 3;
399 }
400 }
401 else {
402 /* J instuctions. */
403 if ((jump->flags & IS_MOVABLE) && (target_addr & ~0xfffffff) == (jump->addr & ~0xfffffff)) {
404 jump->flags |= PATCH_J;
405 inst[0] = inst[-1];
406 inst[-1] = (jump->flags & IS_JAL) ? JAL : J;
407 jump->addr -= sizeof(sljit_ins);
408 return inst;
409 }
410
411 if ((target_addr & ~0xfffffff) == ((jump->addr + sizeof(sljit_ins)) & ~0xfffffff)) {
412 jump->flags |= PATCH_J;
413 inst[0] = (jump->flags & IS_JAL) ? JAL : J;
414 inst[1] = NOP;
415 return inst + 1;
416 }
417 }
418
419 #if (defined SLJIT_CONFIG_MIPS_64 && SLJIT_CONFIG_MIPS_64)
420 keep_address:
421 if (target_addr <= 0x7fffffff) {
422 jump->flags |= PATCH_ABS32;
423 if (jump->flags & IS_COND) {
424 inst[0] -= 4;
425 inst++;
426 }
427 inst[2] = inst[6];
428 inst[3] = inst[7];
429 return inst + 3;
430 }
431 if (target_addr <= 0x7fffffffffffl) {
432 jump->flags |= PATCH_ABS48;
433 if (jump->flags & IS_COND) {
434 inst[0] -= 2;
435 inst++;
436 }
437 inst[4] = inst[6];
438 inst[5] = inst[7];
439 return inst + 5;
440 }
441 #endif
442
443 return code_ptr;
444 }
445
446 #ifdef __GNUC__
sljit_cache_flush(void * code,void * code_ptr)447 static __attribute__ ((noinline)) void sljit_cache_flush(void* code, void* code_ptr)
448 {
449 SLJIT_CACHE_FLUSH(code, code_ptr);
450 }
451 #endif
452
453 #if (defined SLJIT_CONFIG_MIPS_64 && SLJIT_CONFIG_MIPS_64)
454
put_label_get_length(struct sljit_put_label * put_label,sljit_uw max_label)455 static SLJIT_INLINE sljit_sw put_label_get_length(struct sljit_put_label *put_label, sljit_uw max_label)
456 {
457 if (max_label < 0x80000000l) {
458 put_label->flags = 0;
459 return 1;
460 }
461
462 if (max_label < 0x800000000000l) {
463 put_label->flags = 1;
464 return 3;
465 }
466
467 put_label->flags = 2;
468 return 5;
469 }
470
put_label_set(struct sljit_put_label * put_label)471 static SLJIT_INLINE void put_label_set(struct sljit_put_label *put_label)
472 {
473 sljit_uw addr = put_label->label->addr;
474 sljit_ins *inst = (sljit_ins *)put_label->addr;
475 sljit_s32 reg = *inst;
476
477 if (put_label->flags == 0) {
478 SLJIT_ASSERT(addr < 0x80000000l);
479 inst[0] = LUI | T(reg) | IMM(addr >> 16);
480 }
481 else if (put_label->flags == 1) {
482 SLJIT_ASSERT(addr < 0x800000000000l);
483 inst[0] = LUI | T(reg) | IMM(addr >> 32);
484 inst[1] = ORI | S(reg) | T(reg) | IMM((addr >> 16) & 0xffff);
485 inst[2] = DSLL | T(reg) | D(reg) | SH_IMM(16);
486 inst += 2;
487 }
488 else {
489 inst[0] = LUI | T(reg) | IMM(addr >> 48);
490 inst[1] = ORI | S(reg) | T(reg) | IMM((addr >> 32) & 0xffff);
491 inst[2] = DSLL | T(reg) | D(reg) | SH_IMM(16);
492 inst[3] = ORI | S(reg) | T(reg) | IMM((addr >> 16) & 0xffff);
493 inst[4] = DSLL | T(reg) | D(reg) | SH_IMM(16);
494 inst += 4;
495 }
496
497 inst[1] = ORI | S(reg) | T(reg) | IMM(addr & 0xffff);
498 }
499
500 #endif
501
sljit_generate_code(struct sljit_compiler * compiler)502 SLJIT_API_FUNC_ATTRIBUTE void* sljit_generate_code(struct sljit_compiler *compiler)
503 {
504 struct sljit_memory_fragment *buf;
505 sljit_ins *code;
506 sljit_ins *code_ptr;
507 sljit_ins *buf_ptr;
508 sljit_ins *buf_end;
509 sljit_uw word_count;
510 sljit_uw next_addr;
511 sljit_sw executable_offset;
512 sljit_uw addr;
513
514 struct sljit_label *label;
515 struct sljit_jump *jump;
516 struct sljit_const *const_;
517 struct sljit_put_label *put_label;
518
519 CHECK_ERROR_PTR();
520 CHECK_PTR(check_sljit_generate_code(compiler));
521 reverse_buf(compiler);
522
523 code = (sljit_ins*)SLJIT_MALLOC_EXEC(compiler->size * sizeof(sljit_ins), compiler->exec_allocator_data);
524 PTR_FAIL_WITH_EXEC_IF(code);
525 buf = compiler->buf;
526
527 code_ptr = code;
528 word_count = 0;
529 next_addr = 0;
530 executable_offset = SLJIT_EXEC_OFFSET(code);
531
532 label = compiler->labels;
533 jump = compiler->jumps;
534 const_ = compiler->consts;
535 put_label = compiler->put_labels;
536
537 do {
538 buf_ptr = (sljit_ins*)buf->memory;
539 buf_end = buf_ptr + (buf->used_size >> 2);
540 do {
541 *code_ptr = *buf_ptr++;
542 if (next_addr == word_count) {
543 SLJIT_ASSERT(!label || label->size >= word_count);
544 SLJIT_ASSERT(!jump || jump->addr >= word_count);
545 SLJIT_ASSERT(!const_ || const_->addr >= word_count);
546 SLJIT_ASSERT(!put_label || put_label->addr >= word_count);
547
548 /* These structures are ordered by their address. */
549 if (label && label->size == word_count) {
550 label->addr = (sljit_uw)SLJIT_ADD_EXEC_OFFSET(code_ptr, executable_offset);
551 label->size = code_ptr - code;
552 label = label->next;
553 }
554 if (jump && jump->addr == word_count) {
555 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
556 jump->addr = (sljit_uw)(code_ptr - 3);
557 #else
558 jump->addr = (sljit_uw)(code_ptr - 7);
559 #endif
560 code_ptr = detect_jump_type(jump, code_ptr, code, executable_offset);
561 jump = jump->next;
562 }
563 if (const_ && const_->addr == word_count) {
564 const_->addr = (sljit_uw)code_ptr;
565 const_ = const_->next;
566 }
567 if (put_label && put_label->addr == word_count) {
568 SLJIT_ASSERT(put_label->label);
569 put_label->addr = (sljit_uw)code_ptr;
570 #if (defined SLJIT_CONFIG_MIPS_64 && SLJIT_CONFIG_MIPS_64)
571 code_ptr += put_label_get_length(put_label, (sljit_uw)(SLJIT_ADD_EXEC_OFFSET(code, executable_offset) + put_label->label->size));
572 word_count += 5;
573 #endif
574 put_label = put_label->next;
575 }
576 next_addr = compute_next_addr(label, jump, const_, put_label);
577 }
578 code_ptr ++;
579 word_count ++;
580 } while (buf_ptr < buf_end);
581
582 buf = buf->next;
583 } while (buf);
584
585 if (label && label->size == word_count) {
586 label->addr = (sljit_uw)code_ptr;
587 label->size = code_ptr - code;
588 label = label->next;
589 }
590
591 SLJIT_ASSERT(!label);
592 SLJIT_ASSERT(!jump);
593 SLJIT_ASSERT(!const_);
594 SLJIT_ASSERT(!put_label);
595 SLJIT_ASSERT(code_ptr - code <= (sljit_sw)compiler->size);
596
597 jump = compiler->jumps;
598 while (jump) {
599 do {
600 addr = (jump->flags & JUMP_LABEL) ? jump->u.label->addr : jump->u.target;
601 buf_ptr = (sljit_ins *)jump->addr;
602
603 if (jump->flags & PATCH_B) {
604 addr = (sljit_sw)(addr - ((sljit_uw)SLJIT_ADD_EXEC_OFFSET(buf_ptr, executable_offset) + sizeof(sljit_ins))) >> 2;
605 SLJIT_ASSERT((sljit_sw)addr <= SIMM_MAX && (sljit_sw)addr >= SIMM_MIN);
606 buf_ptr[0] = (buf_ptr[0] & 0xffff0000) | (addr & 0xffff);
607 break;
608 }
609 if (jump->flags & PATCH_J) {
610 SLJIT_ASSERT((addr & ~0xfffffff) == (((sljit_uw)SLJIT_ADD_EXEC_OFFSET(buf_ptr, executable_offset) + sizeof(sljit_ins)) & ~0xfffffff));
611 buf_ptr[0] |= (addr >> 2) & 0x03ffffff;
612 break;
613 }
614
615 /* Set the fields of immediate loads. */
616 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
617 buf_ptr[0] = (buf_ptr[0] & 0xffff0000) | ((addr >> 16) & 0xffff);
618 buf_ptr[1] = (buf_ptr[1] & 0xffff0000) | (addr & 0xffff);
619 #else
620 if (jump->flags & PATCH_ABS32) {
621 SLJIT_ASSERT(addr <= 0x7fffffff);
622 buf_ptr[0] = (buf_ptr[0] & 0xffff0000) | ((addr >> 16) & 0xffff);
623 buf_ptr[1] = (buf_ptr[1] & 0xffff0000) | (addr & 0xffff);
624 }
625 else if (jump->flags & PATCH_ABS48) {
626 SLJIT_ASSERT(addr <= 0x7fffffffffffl);
627 buf_ptr[0] = (buf_ptr[0] & 0xffff0000) | ((addr >> 32) & 0xffff);
628 buf_ptr[1] = (buf_ptr[1] & 0xffff0000) | ((addr >> 16) & 0xffff);
629 buf_ptr[3] = (buf_ptr[3] & 0xffff0000) | (addr & 0xffff);
630 }
631 else {
632 buf_ptr[0] = (buf_ptr[0] & 0xffff0000) | ((addr >> 48) & 0xffff);
633 buf_ptr[1] = (buf_ptr[1] & 0xffff0000) | ((addr >> 32) & 0xffff);
634 buf_ptr[3] = (buf_ptr[3] & 0xffff0000) | ((addr >> 16) & 0xffff);
635 buf_ptr[5] = (buf_ptr[5] & 0xffff0000) | (addr & 0xffff);
636 }
637 #endif
638 } while (0);
639 jump = jump->next;
640 }
641
642 put_label = compiler->put_labels;
643 while (put_label) {
644 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
645 addr = put_label->label->addr;
646 buf_ptr = (sljit_ins *)put_label->addr;
647
648 SLJIT_ASSERT((buf_ptr[0] & 0xffe00000) == LUI && (buf_ptr[1] & 0xfc000000) == ORI);
649 buf_ptr[0] |= (addr >> 16) & 0xffff;
650 buf_ptr[1] |= addr & 0xffff;
651 #else
652 put_label_set(put_label);
653 #endif
654 put_label = put_label->next;
655 }
656
657 compiler->error = SLJIT_ERR_COMPILED;
658 compiler->executable_offset = executable_offset;
659 compiler->executable_size = (code_ptr - code) * sizeof(sljit_ins);
660
661 code = (sljit_ins *)SLJIT_ADD_EXEC_OFFSET(code, executable_offset);
662 code_ptr = (sljit_ins *)SLJIT_ADD_EXEC_OFFSET(code_ptr, executable_offset);
663
664 #ifndef __GNUC__
665 SLJIT_CACHE_FLUSH(code, code_ptr);
666 #else
667 /* GCC workaround for invalid code generation with -O2. */
668 sljit_cache_flush(code, code_ptr);
669 #endif
670 SLJIT_UPDATE_WX_FLAGS(code, code_ptr, 1);
671 return code;
672 }
673
sljit_has_cpu_feature(sljit_s32 feature_type)674 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_has_cpu_feature(sljit_s32 feature_type)
675 {
676 sljit_sw fir = 0;
677
678 switch (feature_type) {
679 case SLJIT_HAS_FPU:
680 #ifdef SLJIT_IS_FPU_AVAILABLE
681 return SLJIT_IS_FPU_AVAILABLE;
682 #elif defined(__GNUC__)
683 __asm__ ("cfc1 %0, $0" : "=r"(fir));
684 return (fir >> 22) & 0x1;
685 #else
686 #error "FIR check is not implemented for this architecture"
687 #endif
688 case SLJIT_HAS_ZERO_REGISTER:
689 return 1;
690
691 #if (defined SLJIT_MIPS_REV && SLJIT_MIPS_REV >= 1)
692 case SLJIT_HAS_CLZ:
693 case SLJIT_HAS_CMOV:
694 case SLJIT_HAS_PREFETCH:
695 return 1;
696 #endif /* SLJIT_MIPS_REV >= 1 */
697
698 default:
699 return fir;
700 }
701 }
702
703 /* --------------------------------------------------------------------- */
704 /* Entry, exit */
705 /* --------------------------------------------------------------------- */
706
707 /* Creates an index in data_transfer_insts array. */
708 #define LOAD_DATA 0x01
709 #define WORD_DATA 0x00
710 #define BYTE_DATA 0x02
711 #define HALF_DATA 0x04
712 #define INT_DATA 0x06
713 #define SIGNED_DATA 0x08
714 /* Separates integer and floating point registers */
715 #define GPR_REG 0x0f
716 #define DOUBLE_DATA 0x10
717 #define SINGLE_DATA 0x12
718
719 #define MEM_MASK 0x1f
720
721 #define ARG_TEST 0x00020
722 #define ALT_KEEP_CACHE 0x00040
723 #define CUMULATIVE_OP 0x00080
724 #define LOGICAL_OP 0x00100
725 #define IMM_OP 0x00200
726 #define SRC2_IMM 0x00400
727
728 #define UNUSED_DEST 0x00800
729 #define REG_DEST 0x01000
730 #define REG1_SOURCE 0x02000
731 #define REG2_SOURCE 0x04000
732 #define SLOW_SRC1 0x08000
733 #define SLOW_SRC2 0x10000
734 #define SLOW_DEST 0x20000
735
736 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
737 #define STACK_STORE SW
738 #define STACK_LOAD LW
739 #else
740 #define STACK_STORE SD
741 #define STACK_LOAD LD
742 #endif
743
744 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);
745
746 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
747 #include "sljitNativeMIPS_32.c"
748 #else
749 #include "sljitNativeMIPS_64.c"
750 #endif
751
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)752 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_enter(struct sljit_compiler *compiler,
753 sljit_s32 options, sljit_s32 arg_types, sljit_s32 scratches, sljit_s32 saveds,
754 sljit_s32 fscratches, sljit_s32 fsaveds, sljit_s32 local_size)
755 {
756 sljit_ins base;
757 sljit_s32 args, i, tmp, offs;
758
759 CHECK_ERROR();
760 CHECK(check_sljit_emit_enter(compiler, options, arg_types, scratches, saveds, fscratches, fsaveds, local_size));
761 set_emit_enter(compiler, options, arg_types, scratches, saveds, fscratches, fsaveds, local_size);
762
763 local_size += GET_SAVED_REGISTERS_SIZE(scratches, saveds, 1) + SLJIT_LOCALS_OFFSET;
764 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
765 local_size = (local_size + 15) & ~0xf;
766 #else
767 local_size = (local_size + 31) & ~0x1f;
768 #endif
769 compiler->local_size = local_size;
770
771 if (local_size <= SIMM_MAX) {
772 /* Frequent case. */
773 FAIL_IF(push_inst(compiler, ADDIU_W | S(SLJIT_SP) | T(SLJIT_SP) | IMM(-local_size), DR(SLJIT_SP)));
774 base = S(SLJIT_SP);
775 offs = local_size - (sljit_sw)sizeof(sljit_sw);
776 }
777 else {
778 FAIL_IF(load_immediate(compiler, DR(OTHER_FLAG), local_size));
779 FAIL_IF(push_inst(compiler, ADDU_W | S(SLJIT_SP) | TA(0) | D(TMP_REG2), DR(TMP_REG2)));
780 FAIL_IF(push_inst(compiler, SUBU_W | S(SLJIT_SP) | T(OTHER_FLAG) | D(SLJIT_SP), DR(SLJIT_SP)));
781 base = S(TMP_REG2);
782 local_size = 0;
783 offs = -(sljit_sw)sizeof(sljit_sw);
784 }
785
786 FAIL_IF(push_inst(compiler, STACK_STORE | base | TA(RETURN_ADDR_REG) | IMM(offs), MOVABLE_INS));
787
788 tmp = saveds < SLJIT_NUMBER_OF_SAVED_REGISTERS ? (SLJIT_S0 + 1 - saveds) : SLJIT_FIRST_SAVED_REG;
789 for (i = SLJIT_S0; i >= tmp; i--) {
790 offs -= (sljit_s32)(sizeof(sljit_sw));
791 FAIL_IF(push_inst(compiler, STACK_STORE | base | T(i) | IMM(offs), MOVABLE_INS));
792 }
793
794 for (i = scratches; i >= SLJIT_FIRST_SAVED_REG; i--) {
795 offs -= (sljit_s32)(sizeof(sljit_sw));
796 FAIL_IF(push_inst(compiler, STACK_STORE | base | T(i) | IMM(offs), MOVABLE_INS));
797 }
798
799 args = get_arg_count(arg_types);
800
801 if (args >= 1)
802 FAIL_IF(push_inst(compiler, ADDU_W | SA(4) | TA(0) | D(SLJIT_S0), DR(SLJIT_S0)));
803 if (args >= 2)
804 FAIL_IF(push_inst(compiler, ADDU_W | SA(5) | TA(0) | D(SLJIT_S1), DR(SLJIT_S1)));
805 if (args >= 3)
806 FAIL_IF(push_inst(compiler, ADDU_W | SA(6) | TA(0) | D(SLJIT_S2), DR(SLJIT_S2)));
807
808 return SLJIT_SUCCESS;
809 }
810
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)811 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_set_context(struct sljit_compiler *compiler,
812 sljit_s32 options, sljit_s32 arg_types, sljit_s32 scratches, sljit_s32 saveds,
813 sljit_s32 fscratches, sljit_s32 fsaveds, sljit_s32 local_size)
814 {
815 CHECK_ERROR();
816 CHECK(check_sljit_set_context(compiler, options, arg_types, scratches, saveds, fscratches, fsaveds, local_size));
817 set_set_context(compiler, options, arg_types, scratches, saveds, fscratches, fsaveds, local_size);
818
819 local_size += GET_SAVED_REGISTERS_SIZE(scratches, saveds, 1) + SLJIT_LOCALS_OFFSET;
820 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
821 compiler->local_size = (local_size + 15) & ~0xf;
822 #else
823 compiler->local_size = (local_size + 31) & ~0x1f;
824 #endif
825 return SLJIT_SUCCESS;
826 }
827
sljit_emit_return(struct sljit_compiler * compiler,sljit_s32 op,sljit_s32 src,sljit_sw srcw)828 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_return(struct sljit_compiler *compiler, sljit_s32 op, sljit_s32 src, sljit_sw srcw)
829 {
830 sljit_s32 local_size, i, tmp, offs;
831 sljit_ins base;
832
833 CHECK_ERROR();
834 CHECK(check_sljit_emit_return(compiler, op, src, srcw));
835
836 FAIL_IF(emit_mov_before_return(compiler, op, src, srcw));
837
838 local_size = compiler->local_size;
839 if (local_size <= SIMM_MAX)
840 base = S(SLJIT_SP);
841 else {
842 FAIL_IF(load_immediate(compiler, DR(TMP_REG1), local_size));
843 FAIL_IF(push_inst(compiler, ADDU_W | S(SLJIT_SP) | T(TMP_REG1) | D(TMP_REG1), DR(TMP_REG1)));
844 base = S(TMP_REG1);
845 local_size = 0;
846 }
847
848 FAIL_IF(push_inst(compiler, STACK_LOAD | base | TA(RETURN_ADDR_REG) | IMM(local_size - (sljit_s32)sizeof(sljit_sw)), RETURN_ADDR_REG));
849 offs = local_size - (sljit_s32)GET_SAVED_REGISTERS_SIZE(compiler->scratches, compiler->saveds, 1);
850
851 tmp = compiler->scratches;
852 for (i = SLJIT_FIRST_SAVED_REG; i <= tmp; i++) {
853 FAIL_IF(push_inst(compiler, STACK_LOAD | base | T(i) | IMM(offs), DR(i)));
854 offs += (sljit_s32)(sizeof(sljit_sw));
855 }
856
857 tmp = compiler->saveds < SLJIT_NUMBER_OF_SAVED_REGISTERS ? (SLJIT_S0 + 1 - compiler->saveds) : SLJIT_FIRST_SAVED_REG;
858 for (i = tmp; i <= SLJIT_S0; i++) {
859 FAIL_IF(push_inst(compiler, STACK_LOAD | base | T(i) | IMM(offs), DR(i)));
860 offs += (sljit_s32)(sizeof(sljit_sw));
861 }
862
863 SLJIT_ASSERT(offs == local_size - (sljit_sw)(sizeof(sljit_sw)));
864
865 FAIL_IF(push_inst(compiler, JR | SA(RETURN_ADDR_REG), UNMOVABLE_INS));
866 if (compiler->local_size <= SIMM_MAX)
867 return push_inst(compiler, ADDIU_W | S(SLJIT_SP) | T(SLJIT_SP) | IMM(compiler->local_size), UNMOVABLE_INS);
868 else
869 return push_inst(compiler, ADDU_W | S(TMP_REG1) | TA(0) | D(SLJIT_SP), UNMOVABLE_INS);
870 }
871
872 #undef STACK_STORE
873 #undef STACK_LOAD
874
875 /* --------------------------------------------------------------------- */
876 /* Operators */
877 /* --------------------------------------------------------------------- */
878
879 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
880 #define ARCH_32_64(a, b) a
881 #else
882 #define ARCH_32_64(a, b) b
883 #endif
884
885 static const sljit_ins data_transfer_insts[16 + 4] = {
886 /* u w s */ ARCH_32_64(HI(43) /* sw */, HI(63) /* sd */),
887 /* u w l */ ARCH_32_64(HI(35) /* lw */, HI(55) /* ld */),
888 /* u b s */ HI(40) /* sb */,
889 /* u b l */ HI(36) /* lbu */,
890 /* u h s */ HI(41) /* sh */,
891 /* u h l */ HI(37) /* lhu */,
892 /* u i s */ HI(43) /* sw */,
893 /* u i l */ ARCH_32_64(HI(35) /* lw */, HI(39) /* lwu */),
894
895 /* s w s */ ARCH_32_64(HI(43) /* sw */, HI(63) /* sd */),
896 /* s w l */ ARCH_32_64(HI(35) /* lw */, HI(55) /* ld */),
897 /* s b s */ HI(40) /* sb */,
898 /* s b l */ HI(32) /* lb */,
899 /* s h s */ HI(41) /* sh */,
900 /* s h l */ HI(33) /* lh */,
901 /* s i s */ HI(43) /* sw */,
902 /* s i l */ HI(35) /* lw */,
903
904 /* d s */ HI(61) /* sdc1 */,
905 /* d l */ HI(53) /* ldc1 */,
906 /* s s */ HI(57) /* swc1 */,
907 /* s l */ HI(49) /* lwc1 */,
908 };
909
910 #undef ARCH_32_64
911
912 /* reg_ar is an absoulute register! */
913
914 /* 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)915 static sljit_s32 getput_arg_fast(struct sljit_compiler *compiler, sljit_s32 flags, sljit_s32 reg_ar, sljit_s32 arg, sljit_sw argw)
916 {
917 SLJIT_ASSERT(arg & SLJIT_MEM);
918
919 if (!(arg & OFFS_REG_MASK) && argw <= SIMM_MAX && argw >= SIMM_MIN) {
920 /* Works for both absoulte and relative addresses. */
921 if (SLJIT_UNLIKELY(flags & ARG_TEST))
922 return 1;
923 FAIL_IF(push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | S(arg & REG_MASK)
924 | TA(reg_ar) | IMM(argw), ((flags & MEM_MASK) <= GPR_REG && (flags & LOAD_DATA)) ? reg_ar : MOVABLE_INS));
925 return -1;
926 }
927 return 0;
928 }
929
930 /* See getput_arg below.
931 Note: can_cache is called only for binary operators. Those
932 operators always uses word arguments without write back. */
can_cache(sljit_s32 arg,sljit_sw argw,sljit_s32 next_arg,sljit_sw next_argw)933 static sljit_s32 can_cache(sljit_s32 arg, sljit_sw argw, sljit_s32 next_arg, sljit_sw next_argw)
934 {
935 SLJIT_ASSERT((arg & SLJIT_MEM) && (next_arg & SLJIT_MEM));
936
937 /* Simple operation except for updates. */
938 if (arg & OFFS_REG_MASK) {
939 argw &= 0x3;
940 next_argw &= 0x3;
941 if (argw && argw == next_argw && (arg == next_arg || (arg & OFFS_REG_MASK) == (next_arg & OFFS_REG_MASK)))
942 return 1;
943 return 0;
944 }
945
946 if (arg == next_arg) {
947 if (((next_argw - argw) <= SIMM_MAX && (next_argw - argw) >= SIMM_MIN))
948 return 1;
949 return 0;
950 }
951
952 return 0;
953 }
954
955 /* 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)956 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)
957 {
958 sljit_s32 tmp_ar, base, delay_slot;
959
960 SLJIT_ASSERT(arg & SLJIT_MEM);
961 if (!(next_arg & SLJIT_MEM)) {
962 next_arg = 0;
963 next_argw = 0;
964 }
965
966 if ((flags & MEM_MASK) <= GPR_REG && (flags & LOAD_DATA)) {
967 tmp_ar = reg_ar;
968 delay_slot = reg_ar;
969 }
970 else {
971 tmp_ar = DR(TMP_REG1);
972 delay_slot = MOVABLE_INS;
973 }
974 base = arg & REG_MASK;
975
976 if (SLJIT_UNLIKELY(arg & OFFS_REG_MASK)) {
977 argw &= 0x3;
978
979 /* Using the cache. */
980 if (argw == compiler->cache_argw) {
981 if (arg == compiler->cache_arg)
982 return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | S(TMP_REG3) | TA(reg_ar), delay_slot);
983
984 if ((SLJIT_MEM | (arg & OFFS_REG_MASK)) == compiler->cache_arg) {
985 if (arg == next_arg && argw == (next_argw & 0x3)) {
986 compiler->cache_arg = arg;
987 compiler->cache_argw = argw;
988 FAIL_IF(push_inst(compiler, ADDU_W | S(base) | T(TMP_REG3) | D(TMP_REG3), DR(TMP_REG3)));
989 return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | S(TMP_REG3) | TA(reg_ar), delay_slot);
990 }
991 FAIL_IF(push_inst(compiler, ADDU_W | S(base) | T(TMP_REG3) | DA(tmp_ar), tmp_ar));
992 return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | SA(tmp_ar) | TA(reg_ar), delay_slot);
993 }
994 }
995
996 if (SLJIT_UNLIKELY(argw)) {
997 compiler->cache_arg = SLJIT_MEM | (arg & OFFS_REG_MASK);
998 compiler->cache_argw = argw;
999 FAIL_IF(push_inst(compiler, SLL_W | T(OFFS_REG(arg)) | D(TMP_REG3) | SH_IMM(argw), DR(TMP_REG3)));
1000 }
1001
1002 if (arg == next_arg && argw == (next_argw & 0x3)) {
1003 compiler->cache_arg = arg;
1004 compiler->cache_argw = argw;
1005 FAIL_IF(push_inst(compiler, ADDU_W | S(base) | T(!argw ? OFFS_REG(arg) : TMP_REG3) | D(TMP_REG3), DR(TMP_REG3)));
1006 tmp_ar = DR(TMP_REG3);
1007 }
1008 else
1009 FAIL_IF(push_inst(compiler, ADDU_W | S(base) | T(!argw ? OFFS_REG(arg) : TMP_REG3) | DA(tmp_ar), tmp_ar));
1010 return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | SA(tmp_ar) | TA(reg_ar), delay_slot);
1011 }
1012
1013 if (compiler->cache_arg == arg && argw - compiler->cache_argw <= SIMM_MAX && argw - compiler->cache_argw >= SIMM_MIN) {
1014 if (argw != compiler->cache_argw) {
1015 FAIL_IF(push_inst(compiler, ADDIU_W | S(TMP_REG3) | T(TMP_REG3) | IMM(argw - compiler->cache_argw), DR(TMP_REG3)));
1016 compiler->cache_argw = argw;
1017 }
1018 return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | S(TMP_REG3) | TA(reg_ar), delay_slot);
1019 }
1020
1021 if (compiler->cache_arg == SLJIT_MEM && argw - compiler->cache_argw <= SIMM_MAX && argw - compiler->cache_argw >= SIMM_MIN) {
1022 if (argw != compiler->cache_argw)
1023 FAIL_IF(push_inst(compiler, ADDIU_W | S(TMP_REG3) | T(TMP_REG3) | IMM(argw - compiler->cache_argw), DR(TMP_REG3)));
1024 }
1025 else {
1026 compiler->cache_arg = SLJIT_MEM;
1027 FAIL_IF(load_immediate(compiler, DR(TMP_REG3), argw));
1028 }
1029 compiler->cache_argw = argw;
1030
1031 if (!base)
1032 return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | S(TMP_REG3) | TA(reg_ar), delay_slot);
1033
1034 if (arg == next_arg && next_argw - argw <= SIMM_MAX && next_argw - argw >= SIMM_MIN) {
1035 compiler->cache_arg = arg;
1036 FAIL_IF(push_inst(compiler, ADDU_W | S(TMP_REG3) | T(base) | D(TMP_REG3), DR(TMP_REG3)));
1037 return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | S(TMP_REG3) | TA(reg_ar), delay_slot);
1038 }
1039
1040 FAIL_IF(push_inst(compiler, ADDU_W | S(TMP_REG3) | T(base) | DA(tmp_ar), tmp_ar));
1041 return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | SA(tmp_ar) | TA(reg_ar), delay_slot);
1042 }
1043
emit_op_mem(struct sljit_compiler * compiler,sljit_s32 flags,sljit_s32 reg_ar,sljit_s32 arg,sljit_sw argw)1044 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)
1045 {
1046 sljit_s32 tmp_ar, base, delay_slot;
1047
1048 if (getput_arg_fast(compiler, flags, reg_ar, arg, argw))
1049 return compiler->error;
1050
1051 if ((flags & MEM_MASK) <= GPR_REG && (flags & LOAD_DATA)) {
1052 tmp_ar = reg_ar;
1053 delay_slot = reg_ar;
1054 }
1055 else {
1056 tmp_ar = DR(TMP_REG1);
1057 delay_slot = MOVABLE_INS;
1058 }
1059 base = arg & REG_MASK;
1060
1061 if (SLJIT_UNLIKELY(arg & OFFS_REG_MASK)) {
1062 argw &= 0x3;
1063
1064 if (SLJIT_UNLIKELY(argw)) {
1065 FAIL_IF(push_inst(compiler, SLL_W | T(OFFS_REG(arg)) | DA(tmp_ar) | SH_IMM(argw), tmp_ar));
1066 FAIL_IF(push_inst(compiler, ADDU_W | S(base) | TA(tmp_ar) | DA(tmp_ar), tmp_ar));
1067 }
1068 else
1069 FAIL_IF(push_inst(compiler, ADDU_W | S(base) | T(OFFS_REG(arg)) | DA(tmp_ar), tmp_ar));
1070 return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | SA(tmp_ar) | TA(reg_ar), delay_slot);
1071 }
1072
1073 FAIL_IF(load_immediate(compiler, tmp_ar, argw));
1074
1075 if (base != 0)
1076 FAIL_IF(push_inst(compiler, ADDU_W | S(base) | TA(tmp_ar) | DA(tmp_ar), tmp_ar));
1077
1078 return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | SA(tmp_ar) | TA(reg_ar), delay_slot);
1079 }
1080
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)1081 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)
1082 {
1083 if (getput_arg_fast(compiler, flags, reg, arg1, arg1w))
1084 return compiler->error;
1085 return getput_arg(compiler, flags, reg, arg1, arg1w, arg2, arg2w);
1086 }
1087
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)1088 static sljit_s32 emit_op(struct sljit_compiler *compiler, sljit_s32 op, sljit_s32 flags,
1089 sljit_s32 dst, sljit_sw dstw,
1090 sljit_s32 src1, sljit_sw src1w,
1091 sljit_s32 src2, sljit_sw src2w)
1092 {
1093 /* arg1 goes to TMP_REG1 or src reg
1094 arg2 goes to TMP_REG2, imm or src reg
1095 TMP_REG3 can be used for caching
1096 result goes to TMP_REG2, so put result can use TMP_REG1 and TMP_REG3. */
1097 sljit_s32 dst_r = TMP_REG2;
1098 sljit_s32 src1_r;
1099 sljit_sw src2_r = 0;
1100 sljit_s32 sugg_src2_r = TMP_REG2;
1101
1102 if (!(flags & ALT_KEEP_CACHE)) {
1103 compiler->cache_arg = 0;
1104 compiler->cache_argw = 0;
1105 }
1106
1107 if (SLJIT_UNLIKELY(dst == SLJIT_UNUSED)) {
1108 SLJIT_ASSERT(HAS_FLAGS(op));
1109 flags |= UNUSED_DEST;
1110 }
1111 else if (FAST_IS_REG(dst)) {
1112 dst_r = dst;
1113 flags |= REG_DEST;
1114 if (op >= SLJIT_MOV && op <= SLJIT_MOV_P)
1115 sugg_src2_r = dst_r;
1116 }
1117 else if ((dst & SLJIT_MEM) && !getput_arg_fast(compiler, flags | ARG_TEST, DR(TMP_REG1), dst, dstw))
1118 flags |= SLOW_DEST;
1119
1120 if (flags & IMM_OP) {
1121 if ((src2 & SLJIT_IMM) && src2w) {
1122 if ((!(flags & LOGICAL_OP) && (src2w <= SIMM_MAX && src2w >= SIMM_MIN))
1123 || ((flags & LOGICAL_OP) && !(src2w & ~UIMM_MAX))) {
1124 flags |= SRC2_IMM;
1125 src2_r = src2w;
1126 }
1127 }
1128 if (!(flags & SRC2_IMM) && (flags & CUMULATIVE_OP) && (src1 & SLJIT_IMM) && src1w) {
1129 if ((!(flags & LOGICAL_OP) && (src1w <= SIMM_MAX && src1w >= SIMM_MIN))
1130 || ((flags & LOGICAL_OP) && !(src1w & ~UIMM_MAX))) {
1131 flags |= SRC2_IMM;
1132 src2_r = src1w;
1133
1134 /* And swap arguments. */
1135 src1 = src2;
1136 src1w = src2w;
1137 src2 = SLJIT_IMM;
1138 /* src2w = src2_r unneeded. */
1139 }
1140 }
1141 }
1142
1143 /* Source 1. */
1144 if (FAST_IS_REG(src1)) {
1145 src1_r = src1;
1146 flags |= REG1_SOURCE;
1147 }
1148 else if (src1 & SLJIT_IMM) {
1149 if (src1w) {
1150 FAIL_IF(load_immediate(compiler, DR(TMP_REG1), src1w));
1151 src1_r = TMP_REG1;
1152 }
1153 else
1154 src1_r = 0;
1155 }
1156 else {
1157 if (getput_arg_fast(compiler, flags | LOAD_DATA, DR(TMP_REG1), src1, src1w))
1158 FAIL_IF(compiler->error);
1159 else
1160 flags |= SLOW_SRC1;
1161 src1_r = TMP_REG1;
1162 }
1163
1164 /* Source 2. */
1165 if (FAST_IS_REG(src2)) {
1166 src2_r = src2;
1167 flags |= REG2_SOURCE;
1168 if (!(flags & REG_DEST) && op >= SLJIT_MOV && op <= SLJIT_MOV_P)
1169 dst_r = src2_r;
1170 }
1171 else if (src2 & SLJIT_IMM) {
1172 if (!(flags & SRC2_IMM)) {
1173 if (src2w) {
1174 FAIL_IF(load_immediate(compiler, DR(sugg_src2_r), src2w));
1175 src2_r = sugg_src2_r;
1176 }
1177 else {
1178 src2_r = 0;
1179 if ((op >= SLJIT_MOV && op <= SLJIT_MOV_P) && (dst & SLJIT_MEM))
1180 dst_r = 0;
1181 }
1182 }
1183 }
1184 else {
1185 if (getput_arg_fast(compiler, flags | LOAD_DATA, DR(sugg_src2_r), src2, src2w))
1186 FAIL_IF(compiler->error);
1187 else
1188 flags |= SLOW_SRC2;
1189 src2_r = sugg_src2_r;
1190 }
1191
1192 if ((flags & (SLOW_SRC1 | SLOW_SRC2)) == (SLOW_SRC1 | SLOW_SRC2)) {
1193 SLJIT_ASSERT(src2_r == TMP_REG2);
1194 if (!can_cache(src1, src1w, src2, src2w) && can_cache(src1, src1w, dst, dstw)) {
1195 FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, DR(TMP_REG2), src2, src2w, src1, src1w));
1196 FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, DR(TMP_REG1), src1, src1w, dst, dstw));
1197 }
1198 else {
1199 FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, DR(TMP_REG1), src1, src1w, src2, src2w));
1200 FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, DR(TMP_REG2), src2, src2w, dst, dstw));
1201 }
1202 }
1203 else if (flags & SLOW_SRC1)
1204 FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, DR(TMP_REG1), src1, src1w, dst, dstw));
1205 else if (flags & SLOW_SRC2)
1206 FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, DR(sugg_src2_r), src2, src2w, dst, dstw));
1207
1208 FAIL_IF(emit_single_op(compiler, op, flags, dst_r, src1_r, src2_r));
1209
1210 if (dst & SLJIT_MEM) {
1211 if (!(flags & SLOW_DEST)) {
1212 getput_arg_fast(compiler, flags, DR(dst_r), dst, dstw);
1213 return compiler->error;
1214 }
1215 return getput_arg(compiler, flags, DR(dst_r), dst, dstw, 0, 0);
1216 }
1217
1218 return SLJIT_SUCCESS;
1219 }
1220
sljit_emit_op0(struct sljit_compiler * compiler,sljit_s32 op)1221 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_op0(struct sljit_compiler *compiler, sljit_s32 op)
1222 {
1223 #if (defined SLJIT_CONFIG_MIPS_64 && SLJIT_CONFIG_MIPS_64)
1224 sljit_s32 int_op = op & SLJIT_I32_OP;
1225 #endif
1226
1227 CHECK_ERROR();
1228 CHECK(check_sljit_emit_op0(compiler, op));
1229
1230 op = GET_OPCODE(op);
1231 switch (op) {
1232 case SLJIT_BREAKPOINT:
1233 return push_inst(compiler, BREAK, UNMOVABLE_INS);
1234 case SLJIT_NOP:
1235 return push_inst(compiler, NOP, UNMOVABLE_INS);
1236 case SLJIT_LMUL_UW:
1237 case SLJIT_LMUL_SW:
1238 #if (defined SLJIT_MIPS_REV && SLJIT_MIPS_REV >= 6)
1239 #if (defined SLJIT_CONFIG_MIPS_64 && SLJIT_CONFIG_MIPS_64)
1240 FAIL_IF(push_inst(compiler, (op == SLJIT_LMUL_UW ? DMULU : DMUL) | S(SLJIT_R0) | T(SLJIT_R1) | D(TMP_REG3), DR(TMP_REG3)));
1241 FAIL_IF(push_inst(compiler, (op == SLJIT_LMUL_UW ? DMUHU : DMUH) | S(SLJIT_R0) | T(SLJIT_R1) | D(TMP_REG1), DR(TMP_REG1)));
1242 #else /* !SLJIT_CONFIG_MIPS_64 */
1243 FAIL_IF(push_inst(compiler, (op == SLJIT_LMUL_UW ? MULU : MUL) | S(SLJIT_R0) | T(SLJIT_R1) | D(TMP_REG3), DR(TMP_REG3)));
1244 FAIL_IF(push_inst(compiler, (op == SLJIT_LMUL_UW ? MUHU : MUH) | S(SLJIT_R0) | T(SLJIT_R1) | D(TMP_REG1), DR(TMP_REG1)));
1245 #endif /* SLJIT_CONFIG_MIPS_64 */
1246 FAIL_IF(push_inst(compiler, ADDU_W | S(TMP_REG3) | TA(0) | D(SLJIT_R0), DR(SLJIT_R0)));
1247 return push_inst(compiler, ADDU_W | S(TMP_REG1) | TA(0) | D(SLJIT_R1), DR(SLJIT_R1));
1248 #else /* SLJIT_MIPS_REV < 6 */
1249 #if (defined SLJIT_CONFIG_MIPS_64 && SLJIT_CONFIG_MIPS_64)
1250 FAIL_IF(push_inst(compiler, (op == SLJIT_LMUL_UW ? DMULTU : DMULT) | S(SLJIT_R0) | T(SLJIT_R1), MOVABLE_INS));
1251 #else /* !SLJIT_CONFIG_MIPS_64 */
1252 FAIL_IF(push_inst(compiler, (op == SLJIT_LMUL_UW ? MULTU : MULT) | S(SLJIT_R0) | T(SLJIT_R1), MOVABLE_INS));
1253 #endif /* SLJIT_CONFIG_MIPS_64 */
1254 FAIL_IF(push_inst(compiler, MFLO | D(SLJIT_R0), DR(SLJIT_R0)));
1255 return push_inst(compiler, MFHI | D(SLJIT_R1), DR(SLJIT_R1));
1256 #endif /* SLJIT_MIPS_REV >= 6 */
1257 case SLJIT_DIVMOD_UW:
1258 case SLJIT_DIVMOD_SW:
1259 case SLJIT_DIV_UW:
1260 case SLJIT_DIV_SW:
1261 SLJIT_COMPILE_ASSERT((SLJIT_DIVMOD_UW & 0x2) == 0 && SLJIT_DIV_UW - 0x2 == SLJIT_DIVMOD_UW, bad_div_opcode_assignments);
1262 #if (defined SLJIT_MIPS_REV && SLJIT_MIPS_REV >= 6)
1263 #if (defined SLJIT_CONFIG_MIPS_64 && SLJIT_CONFIG_MIPS_64)
1264 if (int_op) {
1265 FAIL_IF(push_inst(compiler, ((op | 0x2) == SLJIT_DIV_UW ? DIVU : DIV) | S(SLJIT_R0) | T(SLJIT_R1) | D(TMP_REG3), DR(TMP_REG3)));
1266 FAIL_IF(push_inst(compiler, ((op | 0x2) == SLJIT_DIV_UW ? MODU : MOD) | S(SLJIT_R0) | T(SLJIT_R1) | D(TMP_REG1), DR(TMP_REG1)));
1267 }
1268 else {
1269 FAIL_IF(push_inst(compiler, ((op | 0x2) == SLJIT_DIV_UW ? DDIVU : DDIV) | S(SLJIT_R0) | T(SLJIT_R1) | D(TMP_REG3), DR(TMP_REG3)));
1270 FAIL_IF(push_inst(compiler, ((op | 0x2) == SLJIT_DIV_UW ? DMODU : DMOD) | S(SLJIT_R0) | T(SLJIT_R1) | D(TMP_REG1), DR(TMP_REG1)));
1271 }
1272 #else /* !SLJIT_CONFIG_MIPS_64 */
1273 FAIL_IF(push_inst(compiler, ((op | 0x2) == SLJIT_DIV_UW ? DIVU : DIV) | S(SLJIT_R0) | T(SLJIT_R1) | D(TMP_REG3), DR(TMP_REG3)));
1274 FAIL_IF(push_inst(compiler, ((op | 0x2) == SLJIT_DIV_UW ? MODU : MOD) | S(SLJIT_R0) | T(SLJIT_R1) | D(TMP_REG1), DR(TMP_REG1)));
1275 #endif /* SLJIT_CONFIG_MIPS_64 */
1276 FAIL_IF(push_inst(compiler, ADDU_W | S(TMP_REG3) | TA(0) | D(SLJIT_R0), DR(SLJIT_R0)));
1277 return (op >= SLJIT_DIV_UW) ? SLJIT_SUCCESS : push_inst(compiler, ADDU_W | S(TMP_REG1) | TA(0) | D(SLJIT_R1), DR(SLJIT_R1));
1278 #else /* SLJIT_MIPS_REV < 6 */
1279 #if !(defined SLJIT_MIPS_REV)
1280 FAIL_IF(push_inst(compiler, NOP, UNMOVABLE_INS));
1281 FAIL_IF(push_inst(compiler, NOP, UNMOVABLE_INS));
1282 #endif /* !SLJIT_MIPS_REV */
1283 #if (defined SLJIT_CONFIG_MIPS_64 && SLJIT_CONFIG_MIPS_64)
1284 if (int_op)
1285 FAIL_IF(push_inst(compiler, ((op | 0x2) == SLJIT_DIV_UW ? DIVU : DIV) | S(SLJIT_R0) | T(SLJIT_R1), MOVABLE_INS));
1286 else
1287 FAIL_IF(push_inst(compiler, ((op | 0x2) == SLJIT_DIV_UW ? DDIVU : DDIV) | S(SLJIT_R0) | T(SLJIT_R1), MOVABLE_INS));
1288 #else /* !SLJIT_CONFIG_MIPS_64 */
1289 FAIL_IF(push_inst(compiler, ((op | 0x2) == SLJIT_DIV_UW ? DIVU : DIV) | S(SLJIT_R0) | T(SLJIT_R1), MOVABLE_INS));
1290 #endif /* SLJIT_CONFIG_MIPS_64 */
1291 FAIL_IF(push_inst(compiler, MFLO | D(SLJIT_R0), DR(SLJIT_R0)));
1292 return (op >= SLJIT_DIV_UW) ? SLJIT_SUCCESS : push_inst(compiler, MFHI | D(SLJIT_R1), DR(SLJIT_R1));
1293 #endif /* SLJIT_MIPS_REV >= 6 */
1294 case SLJIT_ENDBR:
1295 case SLJIT_SKIP_FRAMES_BEFORE_RETURN:
1296 return SLJIT_SUCCESS;
1297 }
1298
1299 return SLJIT_SUCCESS;
1300 }
1301
1302 #if (defined SLJIT_MIPS_REV && SLJIT_MIPS_REV >= 1)
emit_prefetch(struct sljit_compiler * compiler,sljit_s32 src,sljit_sw srcw)1303 static sljit_s32 emit_prefetch(struct sljit_compiler *compiler,
1304 sljit_s32 src, sljit_sw srcw)
1305 {
1306 if (!(src & OFFS_REG_MASK)) {
1307 if (srcw <= SIMM_MAX && srcw >= SIMM_MIN)
1308 return push_inst(compiler, PREF | S(src & REG_MASK) | IMM(srcw), MOVABLE_INS);
1309
1310 FAIL_IF(load_immediate(compiler, DR(TMP_REG1), srcw));
1311 return push_inst(compiler, PREFX | S(src & REG_MASK) | T(TMP_REG1), MOVABLE_INS);
1312 }
1313
1314 srcw &= 0x3;
1315
1316 if (SLJIT_UNLIKELY(srcw != 0)) {
1317 FAIL_IF(push_inst(compiler, SLL_W | T(OFFS_REG(src)) | D(TMP_REG1) | SH_IMM(srcw), DR(TMP_REG1)));
1318 return push_inst(compiler, PREFX | S(src & REG_MASK) | T(TMP_REG1), MOVABLE_INS);
1319 }
1320
1321 return push_inst(compiler, PREFX | S(src & REG_MASK) | T(OFFS_REG(src)), MOVABLE_INS);
1322 }
1323 #endif /* SLJIT_MIPS_REV >= 1 */
1324
sljit_emit_op1(struct sljit_compiler * compiler,sljit_s32 op,sljit_s32 dst,sljit_sw dstw,sljit_s32 src,sljit_sw srcw)1325 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_op1(struct sljit_compiler *compiler, sljit_s32 op,
1326 sljit_s32 dst, sljit_sw dstw,
1327 sljit_s32 src, sljit_sw srcw)
1328 {
1329 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
1330 # define flags 0
1331 #else
1332 sljit_s32 flags = 0;
1333 #endif
1334
1335 CHECK_ERROR();
1336 CHECK(check_sljit_emit_op1(compiler, op, dst, dstw, src, srcw));
1337 ADJUST_LOCAL_OFFSET(dst, dstw);
1338 ADJUST_LOCAL_OFFSET(src, srcw);
1339
1340 #if (defined SLJIT_CONFIG_MIPS_64 && SLJIT_CONFIG_MIPS_64)
1341 if ((op & SLJIT_I32_OP) && GET_OPCODE(op) >= SLJIT_NOT)
1342 flags |= INT_DATA | SIGNED_DATA;
1343 #endif
1344
1345 switch (GET_OPCODE(op)) {
1346 case SLJIT_MOV:
1347 case SLJIT_MOV_P:
1348 return emit_op(compiler, SLJIT_MOV, WORD_DATA, dst, dstw, TMP_REG1, 0, src, srcw);
1349
1350 case SLJIT_MOV_U32:
1351 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
1352 return emit_op(compiler, SLJIT_MOV_U32, INT_DATA, dst, dstw, TMP_REG1, 0, src, srcw);
1353 #else
1354 return emit_op(compiler, SLJIT_MOV_U32, INT_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_u32)srcw : srcw);
1355 #endif
1356
1357 case SLJIT_MOV_S32:
1358 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
1359 return emit_op(compiler, SLJIT_MOV_S32, INT_DATA | SIGNED_DATA, dst, dstw, TMP_REG1, 0, src, srcw);
1360 #else
1361 return emit_op(compiler, SLJIT_MOV_S32, INT_DATA | SIGNED_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_s32)srcw : srcw);
1362 #endif
1363
1364 case SLJIT_MOV_U8:
1365 return emit_op(compiler, SLJIT_MOV_U8, BYTE_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_u8)srcw : srcw);
1366
1367 case SLJIT_MOV_S8:
1368 return emit_op(compiler, SLJIT_MOV_S8, BYTE_DATA | SIGNED_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_s8)srcw : srcw);
1369
1370 case SLJIT_MOV_U16:
1371 return emit_op(compiler, SLJIT_MOV_U16, HALF_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_u16)srcw : srcw);
1372
1373 case SLJIT_MOV_S16:
1374 return emit_op(compiler, SLJIT_MOV_S16, HALF_DATA | SIGNED_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_s16)srcw : srcw);
1375
1376 case SLJIT_NOT:
1377 return emit_op(compiler, op, flags, dst, dstw, TMP_REG1, 0, src, srcw);
1378
1379 case SLJIT_NEG:
1380 return emit_op(compiler, SLJIT_SUB | GET_ALL_FLAGS(op), flags | IMM_OP, dst, dstw, SLJIT_IMM, 0, src, srcw);
1381
1382 case SLJIT_CLZ:
1383 return emit_op(compiler, op, flags, dst, dstw, TMP_REG1, 0, src, srcw);
1384 }
1385
1386 SLJIT_UNREACHABLE();
1387 return SLJIT_SUCCESS;
1388
1389 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
1390 # undef flags
1391 #endif
1392 }
1393
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)1394 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_op2(struct sljit_compiler *compiler, sljit_s32 op,
1395 sljit_s32 dst, sljit_sw dstw,
1396 sljit_s32 src1, sljit_sw src1w,
1397 sljit_s32 src2, sljit_sw src2w)
1398 {
1399 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
1400 # define flags 0
1401 #else
1402 sljit_s32 flags = 0;
1403 #endif
1404
1405 CHECK_ERROR();
1406 CHECK(check_sljit_emit_op2(compiler, op, dst, dstw, src1, src1w, src2, src2w));
1407 ADJUST_LOCAL_OFFSET(dst, dstw);
1408 ADJUST_LOCAL_OFFSET(src1, src1w);
1409 ADJUST_LOCAL_OFFSET(src2, src2w);
1410
1411 if (dst == SLJIT_UNUSED && !HAS_FLAGS(op))
1412 return SLJIT_SUCCESS;
1413
1414 #if (defined SLJIT_CONFIG_MIPS_64 && SLJIT_CONFIG_MIPS_64)
1415 if (op & SLJIT_I32_OP) {
1416 flags |= INT_DATA | SIGNED_DATA;
1417 if (src1 & SLJIT_IMM)
1418 src1w = (sljit_s32)src1w;
1419 if (src2 & SLJIT_IMM)
1420 src2w = (sljit_s32)src2w;
1421 }
1422 #endif
1423
1424 switch (GET_OPCODE(op)) {
1425 case SLJIT_ADD:
1426 case SLJIT_ADDC:
1427 return emit_op(compiler, op, flags | CUMULATIVE_OP | IMM_OP, dst, dstw, src1, src1w, src2, src2w);
1428
1429 case SLJIT_SUB:
1430 case SLJIT_SUBC:
1431 return emit_op(compiler, op, flags | IMM_OP, dst, dstw, src1, src1w, src2, src2w);
1432
1433 case SLJIT_MUL:
1434 return emit_op(compiler, op, flags | CUMULATIVE_OP, dst, dstw, src1, src1w, src2, src2w);
1435
1436 case SLJIT_AND:
1437 case SLJIT_OR:
1438 case SLJIT_XOR:
1439 return emit_op(compiler, op, flags | CUMULATIVE_OP | LOGICAL_OP | IMM_OP, dst, dstw, src1, src1w, src2, src2w);
1440
1441 case SLJIT_SHL:
1442 case SLJIT_LSHR:
1443 case SLJIT_ASHR:
1444 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
1445 if (src2 & SLJIT_IMM)
1446 src2w &= 0x1f;
1447 #else
1448 if (src2 & SLJIT_IMM) {
1449 if (op & SLJIT_I32_OP)
1450 src2w &= 0x1f;
1451 else
1452 src2w &= 0x3f;
1453 }
1454 #endif
1455 return emit_op(compiler, op, flags | IMM_OP, dst, dstw, src1, src1w, src2, src2w);
1456 }
1457
1458 SLJIT_UNREACHABLE();
1459 return SLJIT_SUCCESS;
1460
1461 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
1462 # undef flags
1463 #endif
1464 }
1465
sljit_emit_op_src(struct sljit_compiler * compiler,sljit_s32 op,sljit_s32 src,sljit_sw srcw)1466 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_op_src(struct sljit_compiler *compiler, sljit_s32 op,
1467 sljit_s32 src, sljit_sw srcw)
1468 {
1469 CHECK_ERROR();
1470 CHECK(check_sljit_emit_op_src(compiler, op, src, srcw));
1471 ADJUST_LOCAL_OFFSET(src, srcw);
1472
1473 switch (op) {
1474 case SLJIT_FAST_RETURN:
1475 if (FAST_IS_REG(src))
1476 FAIL_IF(push_inst(compiler, ADDU_W | S(src) | TA(0) | DA(RETURN_ADDR_REG), RETURN_ADDR_REG));
1477 else
1478 FAIL_IF(emit_op_mem(compiler, WORD_DATA | LOAD_DATA, RETURN_ADDR_REG, src, srcw));
1479
1480 FAIL_IF(push_inst(compiler, JR | SA(RETURN_ADDR_REG), UNMOVABLE_INS));
1481 return push_inst(compiler, NOP, UNMOVABLE_INS);
1482 case SLJIT_SKIP_FRAMES_BEFORE_FAST_RETURN:
1483 return SLJIT_SUCCESS;
1484 case SLJIT_PREFETCH_L1:
1485 case SLJIT_PREFETCH_L2:
1486 case SLJIT_PREFETCH_L3:
1487 case SLJIT_PREFETCH_ONCE:
1488 #if (defined SLJIT_MIPS_REV && SLJIT_MIPS_REV >= 1)
1489 return emit_prefetch(compiler, src, srcw);
1490 #else /* SLJIT_MIPS_REV < 1 */
1491 return SLJIT_SUCCESS;
1492 #endif /* SLJIT_MIPS_REV >= 1 */
1493 }
1494
1495 return SLJIT_SUCCESS;
1496 }
1497
sljit_get_register_index(sljit_s32 reg)1498 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_get_register_index(sljit_s32 reg)
1499 {
1500 CHECK_REG_INDEX(check_sljit_get_register_index(reg));
1501 return reg_map[reg];
1502 }
1503
sljit_get_float_register_index(sljit_s32 reg)1504 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_get_float_register_index(sljit_s32 reg)
1505 {
1506 CHECK_REG_INDEX(check_sljit_get_float_register_index(reg));
1507 return FR(reg);
1508 }
1509
sljit_emit_op_custom(struct sljit_compiler * compiler,void * instruction,sljit_s32 size)1510 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_op_custom(struct sljit_compiler *compiler,
1511 void *instruction, sljit_s32 size)
1512 {
1513 CHECK_ERROR();
1514 CHECK(check_sljit_emit_op_custom(compiler, instruction, size));
1515
1516 return push_inst(compiler, *(sljit_ins*)instruction, UNMOVABLE_INS);
1517 }
1518
1519 /* --------------------------------------------------------------------- */
1520 /* Floating point operators */
1521 /* --------------------------------------------------------------------- */
1522
1523 #define FLOAT_DATA(op) (DOUBLE_DATA | ((op & SLJIT_F32_OP) >> 7))
1524 #define FMT(op) (((op & SLJIT_F32_OP) ^ SLJIT_F32_OP) << (21 - 8))
1525
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)1526 static SLJIT_INLINE sljit_s32 sljit_emit_fop1_conv_sw_from_f64(struct sljit_compiler *compiler, sljit_s32 op,
1527 sljit_s32 dst, sljit_sw dstw,
1528 sljit_s32 src, sljit_sw srcw)
1529 {
1530 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
1531 # define flags 0
1532 #else
1533 sljit_s32 flags = (GET_OPCODE(op) == SLJIT_CONV_SW_FROM_F64) << 21;
1534 #endif
1535
1536 if (src & SLJIT_MEM) {
1537 FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op) | LOAD_DATA, FR(TMP_FREG1), src, srcw, dst, dstw));
1538 src = TMP_FREG1;
1539 }
1540
1541 FAIL_IF(push_inst(compiler, (TRUNC_W_S ^ (flags >> 19)) | FMT(op) | FS(src) | FD(TMP_FREG1), MOVABLE_INS));
1542
1543 if (FAST_IS_REG(dst))
1544 return push_inst(compiler, MFC1 | flags | T(dst) | FS(TMP_FREG1), MOVABLE_INS);
1545
1546 /* Store the integer value from a VFP register. */
1547 return emit_op_mem2(compiler, flags ? DOUBLE_DATA : SINGLE_DATA, FR(TMP_FREG1), dst, dstw, 0, 0);
1548
1549 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
1550 # undef is_long
1551 #endif
1552 }
1553
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)1554 static SLJIT_INLINE sljit_s32 sljit_emit_fop1_conv_f64_from_sw(struct sljit_compiler *compiler, sljit_s32 op,
1555 sljit_s32 dst, sljit_sw dstw,
1556 sljit_s32 src, sljit_sw srcw)
1557 {
1558 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
1559 # define flags 0
1560 #else
1561 sljit_s32 flags = (GET_OPCODE(op) == SLJIT_CONV_F64_FROM_SW) << 21;
1562 #endif
1563
1564 sljit_s32 dst_r = FAST_IS_REG(dst) ? dst : TMP_FREG1;
1565
1566 if (FAST_IS_REG(src))
1567 FAIL_IF(push_inst(compiler, MTC1 | flags | T(src) | FS(TMP_FREG1), MOVABLE_INS));
1568 else if (src & SLJIT_MEM) {
1569 /* Load the integer value into a VFP register. */
1570 FAIL_IF(emit_op_mem2(compiler, ((flags) ? DOUBLE_DATA : SINGLE_DATA) | LOAD_DATA, FR(TMP_FREG1), src, srcw, dst, dstw));
1571 }
1572 else {
1573 #if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64)
1574 if (GET_OPCODE(op) == SLJIT_CONV_F64_FROM_S32)
1575 srcw = (sljit_s32)srcw;
1576 #endif
1577 FAIL_IF(load_immediate(compiler, DR(TMP_REG1), srcw));
1578 FAIL_IF(push_inst(compiler, MTC1 | flags | T(TMP_REG1) | FS(TMP_FREG1), MOVABLE_INS));
1579 }
1580
1581 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));
1582
1583 if (dst & SLJIT_MEM)
1584 return emit_op_mem2(compiler, FLOAT_DATA(op), FR(TMP_FREG1), dst, dstw, 0, 0);
1585 return SLJIT_SUCCESS;
1586
1587 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
1588 # undef flags
1589 #endif
1590 }
1591
sljit_emit_fop1_cmp(struct sljit_compiler * compiler,sljit_s32 op,sljit_s32 src1,sljit_sw src1w,sljit_s32 src2,sljit_sw src2w)1592 static SLJIT_INLINE sljit_s32 sljit_emit_fop1_cmp(struct sljit_compiler *compiler, sljit_s32 op,
1593 sljit_s32 src1, sljit_sw src1w,
1594 sljit_s32 src2, sljit_sw src2w)
1595 {
1596 sljit_ins inst;
1597
1598 if (src1 & SLJIT_MEM) {
1599 FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op) | LOAD_DATA, FR(TMP_FREG1), src1, src1w, src2, src2w));
1600 src1 = TMP_FREG1;
1601 }
1602
1603 if (src2 & SLJIT_MEM) {
1604 FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op) | LOAD_DATA, FR(TMP_FREG2), src2, src2w, 0, 0));
1605 src2 = TMP_FREG2;
1606 }
1607
1608 switch (GET_FLAG_TYPE(op)) {
1609 case SLJIT_EQUAL_F64:
1610 case SLJIT_NOT_EQUAL_F64:
1611 inst = C_UEQ_S;
1612 break;
1613 case SLJIT_LESS_F64:
1614 case SLJIT_GREATER_EQUAL_F64:
1615 inst = C_ULT_S;
1616 break;
1617 case SLJIT_GREATER_F64:
1618 case SLJIT_LESS_EQUAL_F64:
1619 inst = C_ULE_S;
1620 break;
1621 default:
1622 SLJIT_ASSERT(GET_FLAG_TYPE(op) == SLJIT_UNORDERED_F64 || GET_FLAG_TYPE(op) == SLJIT_ORDERED_F64);
1623 inst = C_UN_S;
1624 break;
1625 }
1626 return push_inst(compiler, inst | FMT(op) | FT(src2) | FS(src1) | C_FD, UNMOVABLE_INS);
1627 }
1628
sljit_emit_fop1(struct sljit_compiler * compiler,sljit_s32 op,sljit_s32 dst,sljit_sw dstw,sljit_s32 src,sljit_sw srcw)1629 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_fop1(struct sljit_compiler *compiler, sljit_s32 op,
1630 sljit_s32 dst, sljit_sw dstw,
1631 sljit_s32 src, sljit_sw srcw)
1632 {
1633 sljit_s32 dst_r;
1634
1635 CHECK_ERROR();
1636 compiler->cache_arg = 0;
1637 compiler->cache_argw = 0;
1638
1639 SLJIT_COMPILE_ASSERT((SLJIT_F32_OP == 0x100) && !(DOUBLE_DATA & 0x2), float_transfer_bit_error);
1640 SELECT_FOP1_OPERATION_WITH_CHECKS(compiler, op, dst, dstw, src, srcw);
1641
1642 if (GET_OPCODE(op) == SLJIT_CONV_F64_FROM_F32)
1643 op ^= SLJIT_F32_OP;
1644
1645 dst_r = FAST_IS_REG(dst) ? dst : TMP_FREG1;
1646
1647 if (src & SLJIT_MEM) {
1648 FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op) | LOAD_DATA, FR(dst_r), src, srcw, dst, dstw));
1649 src = dst_r;
1650 }
1651
1652 switch (GET_OPCODE(op)) {
1653 case SLJIT_MOV_F64:
1654 if (src != dst_r) {
1655 if (dst_r != TMP_FREG1)
1656 FAIL_IF(push_inst(compiler, MOV_S | FMT(op) | FS(src) | FD(dst_r), MOVABLE_INS));
1657 else
1658 dst_r = src;
1659 }
1660 break;
1661 case SLJIT_NEG_F64:
1662 FAIL_IF(push_inst(compiler, NEG_S | FMT(op) | FS(src) | FD(dst_r), MOVABLE_INS));
1663 break;
1664 case SLJIT_ABS_F64:
1665 FAIL_IF(push_inst(compiler, ABS_S | FMT(op) | FS(src) | FD(dst_r), MOVABLE_INS));
1666 break;
1667 case SLJIT_CONV_F64_FROM_F32:
1668 FAIL_IF(push_inst(compiler, CVT_S_S | ((op & SLJIT_F32_OP) ? 1 : (1 << 21)) | FS(src) | FD(dst_r), MOVABLE_INS));
1669 op ^= SLJIT_F32_OP;
1670 break;
1671 }
1672
1673 if (dst & SLJIT_MEM)
1674 return emit_op_mem2(compiler, FLOAT_DATA(op), FR(dst_r), dst, dstw, 0, 0);
1675 return SLJIT_SUCCESS;
1676 }
1677
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)1678 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_fop2(struct sljit_compiler *compiler, sljit_s32 op,
1679 sljit_s32 dst, sljit_sw dstw,
1680 sljit_s32 src1, sljit_sw src1w,
1681 sljit_s32 src2, sljit_sw src2w)
1682 {
1683 sljit_s32 dst_r, flags = 0;
1684
1685 CHECK_ERROR();
1686 CHECK(check_sljit_emit_fop2(compiler, op, dst, dstw, src1, src1w, src2, src2w));
1687 ADJUST_LOCAL_OFFSET(dst, dstw);
1688 ADJUST_LOCAL_OFFSET(src1, src1w);
1689 ADJUST_LOCAL_OFFSET(src2, src2w);
1690
1691 compiler->cache_arg = 0;
1692 compiler->cache_argw = 0;
1693
1694 dst_r = FAST_IS_REG(dst) ? dst : TMP_FREG2;
1695
1696 if (src1 & SLJIT_MEM) {
1697 if (getput_arg_fast(compiler, FLOAT_DATA(op) | LOAD_DATA, FR(TMP_FREG1), src1, src1w)) {
1698 FAIL_IF(compiler->error);
1699 src1 = TMP_FREG1;
1700 } else
1701 flags |= SLOW_SRC1;
1702 }
1703
1704 if (src2 & SLJIT_MEM) {
1705 if (getput_arg_fast(compiler, FLOAT_DATA(op) | LOAD_DATA, FR(TMP_FREG2), src2, src2w)) {
1706 FAIL_IF(compiler->error);
1707 src2 = TMP_FREG2;
1708 } else
1709 flags |= SLOW_SRC2;
1710 }
1711
1712 if ((flags & (SLOW_SRC1 | SLOW_SRC2)) == (SLOW_SRC1 | SLOW_SRC2)) {
1713 if (!can_cache(src1, src1w, src2, src2w) && can_cache(src1, src1w, dst, dstw)) {
1714 FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, FR(TMP_FREG2), src2, src2w, src1, src1w));
1715 FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, FR(TMP_FREG1), src1, src1w, dst, dstw));
1716 }
1717 else {
1718 FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, FR(TMP_FREG1), src1, src1w, src2, src2w));
1719 FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, FR(TMP_FREG2), src2, src2w, dst, dstw));
1720 }
1721 }
1722 else if (flags & SLOW_SRC1)
1723 FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, FR(TMP_FREG1), src1, src1w, dst, dstw));
1724 else if (flags & SLOW_SRC2)
1725 FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, FR(TMP_FREG2), src2, src2w, dst, dstw));
1726
1727 if (flags & SLOW_SRC1)
1728 src1 = TMP_FREG1;
1729 if (flags & SLOW_SRC2)
1730 src2 = TMP_FREG2;
1731
1732 switch (GET_OPCODE(op)) {
1733 case SLJIT_ADD_F64:
1734 FAIL_IF(push_inst(compiler, ADD_S | FMT(op) | FT(src2) | FS(src1) | FD(dst_r), MOVABLE_INS));
1735 break;
1736
1737 case SLJIT_SUB_F64:
1738 FAIL_IF(push_inst(compiler, SUB_S | FMT(op) | FT(src2) | FS(src1) | FD(dst_r), MOVABLE_INS));
1739 break;
1740
1741 case SLJIT_MUL_F64:
1742 FAIL_IF(push_inst(compiler, MUL_S | FMT(op) | FT(src2) | FS(src1) | FD(dst_r), MOVABLE_INS));
1743 break;
1744
1745 case SLJIT_DIV_F64:
1746 FAIL_IF(push_inst(compiler, DIV_S | FMT(op) | FT(src2) | FS(src1) | FD(dst_r), MOVABLE_INS));
1747 break;
1748 }
1749
1750 if (dst_r == TMP_FREG2)
1751 FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op), FR(TMP_FREG2), dst, dstw, 0, 0));
1752
1753 return SLJIT_SUCCESS;
1754 }
1755
1756 /* --------------------------------------------------------------------- */
1757 /* Other instructions */
1758 /* --------------------------------------------------------------------- */
1759
sljit_emit_fast_enter(struct sljit_compiler * compiler,sljit_s32 dst,sljit_sw dstw)1760 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_fast_enter(struct sljit_compiler *compiler, sljit_s32 dst, sljit_sw dstw)
1761 {
1762 CHECK_ERROR();
1763 CHECK(check_sljit_emit_fast_enter(compiler, dst, dstw));
1764 ADJUST_LOCAL_OFFSET(dst, dstw);
1765
1766 if (FAST_IS_REG(dst))
1767 return push_inst(compiler, ADDU_W | SA(RETURN_ADDR_REG) | TA(0) | D(dst), UNMOVABLE_INS);
1768
1769 /* Memory. */
1770 FAIL_IF(emit_op_mem(compiler, WORD_DATA, RETURN_ADDR_REG, dst, dstw));
1771 compiler->delay_slot = UNMOVABLE_INS;
1772 return SLJIT_SUCCESS;
1773 }
1774
1775 /* --------------------------------------------------------------------- */
1776 /* Conditional instructions */
1777 /* --------------------------------------------------------------------- */
1778
sljit_emit_label(struct sljit_compiler * compiler)1779 SLJIT_API_FUNC_ATTRIBUTE struct sljit_label* sljit_emit_label(struct sljit_compiler *compiler)
1780 {
1781 struct sljit_label *label;
1782
1783 CHECK_ERROR_PTR();
1784 CHECK_PTR(check_sljit_emit_label(compiler));
1785
1786 if (compiler->last_label && compiler->last_label->size == compiler->size)
1787 return compiler->last_label;
1788
1789 label = (struct sljit_label*)ensure_abuf(compiler, sizeof(struct sljit_label));
1790 PTR_FAIL_IF(!label);
1791 set_label(label, compiler);
1792 compiler->delay_slot = UNMOVABLE_INS;
1793 return label;
1794 }
1795
1796 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
1797 #define JUMP_LENGTH 4
1798 #else
1799 #define JUMP_LENGTH 8
1800 #endif
1801
1802 #define BR_Z(src) \
1803 inst = BEQ | SA(src) | TA(0) | JUMP_LENGTH; \
1804 flags = IS_BIT26_COND; \
1805 delay_check = src;
1806
1807 #define BR_NZ(src) \
1808 inst = BNE | SA(src) | TA(0) | JUMP_LENGTH; \
1809 flags = IS_BIT26_COND; \
1810 delay_check = src;
1811
1812 #if (defined SLJIT_MIPS_REV && SLJIT_MIPS_REV >= 6)
1813
1814 #define BR_T() \
1815 inst = BC1NEZ; \
1816 flags = IS_BIT23_COND; \
1817 delay_check = FCSR_FCC;
1818 #define BR_F() \
1819 inst = BC1EQZ; \
1820 flags = IS_BIT23_COND; \
1821 delay_check = FCSR_FCC;
1822
1823 #else /* SLJIT_MIPS_REV < 6 */
1824
1825 #define BR_T() \
1826 inst = BC1T | JUMP_LENGTH; \
1827 flags = IS_BIT16_COND; \
1828 delay_check = FCSR_FCC;
1829 #define BR_F() \
1830 inst = BC1F | JUMP_LENGTH; \
1831 flags = IS_BIT16_COND; \
1832 delay_check = FCSR_FCC;
1833
1834 #endif /* SLJIT_MIPS_REV >= 6 */
1835
sljit_emit_jump(struct sljit_compiler * compiler,sljit_s32 type)1836 SLJIT_API_FUNC_ATTRIBUTE struct sljit_jump* sljit_emit_jump(struct sljit_compiler *compiler, sljit_s32 type)
1837 {
1838 struct sljit_jump *jump;
1839 sljit_ins inst;
1840 sljit_s32 flags = 0;
1841 sljit_s32 delay_check = UNMOVABLE_INS;
1842
1843 CHECK_ERROR_PTR();
1844 CHECK_PTR(check_sljit_emit_jump(compiler, type));
1845
1846 jump = (struct sljit_jump*)ensure_abuf(compiler, sizeof(struct sljit_jump));
1847 PTR_FAIL_IF(!jump);
1848 set_jump(jump, compiler, type & SLJIT_REWRITABLE_JUMP);
1849 type &= 0xff;
1850
1851 switch (type) {
1852 case SLJIT_EQUAL:
1853 BR_NZ(EQUAL_FLAG);
1854 break;
1855 case SLJIT_NOT_EQUAL:
1856 BR_Z(EQUAL_FLAG);
1857 break;
1858 case SLJIT_LESS:
1859 case SLJIT_GREATER:
1860 case SLJIT_SIG_LESS:
1861 case SLJIT_SIG_GREATER:
1862 case SLJIT_OVERFLOW:
1863 case SLJIT_MUL_OVERFLOW:
1864 BR_Z(OTHER_FLAG);
1865 break;
1866 case SLJIT_GREATER_EQUAL:
1867 case SLJIT_LESS_EQUAL:
1868 case SLJIT_SIG_GREATER_EQUAL:
1869 case SLJIT_SIG_LESS_EQUAL:
1870 case SLJIT_NOT_OVERFLOW:
1871 case SLJIT_MUL_NOT_OVERFLOW:
1872 BR_NZ(OTHER_FLAG);
1873 break;
1874 case SLJIT_NOT_EQUAL_F64:
1875 case SLJIT_GREATER_EQUAL_F64:
1876 case SLJIT_GREATER_F64:
1877 case SLJIT_ORDERED_F64:
1878 BR_T();
1879 break;
1880 case SLJIT_EQUAL_F64:
1881 case SLJIT_LESS_F64:
1882 case SLJIT_LESS_EQUAL_F64:
1883 case SLJIT_UNORDERED_F64:
1884 BR_F();
1885 break;
1886 default:
1887 /* Not conditional branch. */
1888 inst = 0;
1889 break;
1890 }
1891
1892 jump->flags |= flags;
1893 if (compiler->delay_slot == MOVABLE_INS || (compiler->delay_slot != UNMOVABLE_INS && compiler->delay_slot != delay_check))
1894 jump->flags |= IS_MOVABLE;
1895
1896 if (inst)
1897 PTR_FAIL_IF(push_inst(compiler, inst, UNMOVABLE_INS));
1898
1899 PTR_FAIL_IF(emit_const(compiler, TMP_REG2, 0));
1900
1901 if (type <= SLJIT_JUMP)
1902 PTR_FAIL_IF(push_inst(compiler, JR | S(TMP_REG2), UNMOVABLE_INS));
1903 else {
1904 jump->flags |= IS_JAL;
1905 PTR_FAIL_IF(push_inst(compiler, JALR | S(TMP_REG2) | DA(RETURN_ADDR_REG), UNMOVABLE_INS));
1906 }
1907
1908 jump->addr = compiler->size;
1909 PTR_FAIL_IF(push_inst(compiler, NOP, UNMOVABLE_INS));
1910 return jump;
1911 }
1912
1913 #define RESOLVE_IMM1() \
1914 if (src1 & SLJIT_IMM) { \
1915 if (src1w) { \
1916 PTR_FAIL_IF(load_immediate(compiler, DR(TMP_REG1), src1w)); \
1917 src1 = TMP_REG1; \
1918 } \
1919 else \
1920 src1 = 0; \
1921 }
1922
1923 #define RESOLVE_IMM2() \
1924 if (src2 & SLJIT_IMM) { \
1925 if (src2w) { \
1926 PTR_FAIL_IF(load_immediate(compiler, DR(TMP_REG2), src2w)); \
1927 src2 = TMP_REG2; \
1928 } \
1929 else \
1930 src2 = 0; \
1931 }
1932
sljit_emit_cmp(struct sljit_compiler * compiler,sljit_s32 type,sljit_s32 src1,sljit_sw src1w,sljit_s32 src2,sljit_sw src2w)1933 SLJIT_API_FUNC_ATTRIBUTE struct sljit_jump* sljit_emit_cmp(struct sljit_compiler *compiler, sljit_s32 type,
1934 sljit_s32 src1, sljit_sw src1w,
1935 sljit_s32 src2, sljit_sw src2w)
1936 {
1937 struct sljit_jump *jump;
1938 sljit_s32 flags;
1939 sljit_ins inst;
1940
1941 CHECK_ERROR_PTR();
1942 CHECK_PTR(check_sljit_emit_cmp(compiler, type, src1, src1w, src2, src2w));
1943 ADJUST_LOCAL_OFFSET(src1, src1w);
1944 ADJUST_LOCAL_OFFSET(src2, src2w);
1945
1946 compiler->cache_arg = 0;
1947 compiler->cache_argw = 0;
1948 flags = ((type & SLJIT_I32_OP) ? INT_DATA : WORD_DATA) | LOAD_DATA;
1949 if (src1 & SLJIT_MEM) {
1950 PTR_FAIL_IF(emit_op_mem2(compiler, flags, DR(TMP_REG1), src1, src1w, src2, src2w));
1951 src1 = TMP_REG1;
1952 }
1953 if (src2 & SLJIT_MEM) {
1954 PTR_FAIL_IF(emit_op_mem2(compiler, flags, DR(TMP_REG2), src2, src2w, 0, 0));
1955 src2 = TMP_REG2;
1956 }
1957
1958 jump = (struct sljit_jump*)ensure_abuf(compiler, sizeof(struct sljit_jump));
1959 PTR_FAIL_IF(!jump);
1960 set_jump(jump, compiler, type & SLJIT_REWRITABLE_JUMP);
1961 type &= 0xff;
1962
1963 if (type <= SLJIT_NOT_EQUAL) {
1964 RESOLVE_IMM1();
1965 RESOLVE_IMM2();
1966 jump->flags |= IS_BIT26_COND;
1967 if (compiler->delay_slot == MOVABLE_INS || (compiler->delay_slot != UNMOVABLE_INS && compiler->delay_slot != DR(src1) && compiler->delay_slot != DR(src2)))
1968 jump->flags |= IS_MOVABLE;
1969 PTR_FAIL_IF(push_inst(compiler, (type == SLJIT_EQUAL ? BNE : BEQ) | S(src1) | T(src2) | JUMP_LENGTH, UNMOVABLE_INS));
1970 }
1971 else if (type >= SLJIT_SIG_LESS && (((src1 & SLJIT_IMM) && (src1w == 0)) || ((src2 & SLJIT_IMM) && (src2w == 0)))) {
1972 inst = NOP;
1973 if ((src1 & SLJIT_IMM) && (src1w == 0)) {
1974 RESOLVE_IMM2();
1975 switch (type) {
1976 case SLJIT_SIG_LESS:
1977 inst = BLEZ;
1978 jump->flags |= IS_BIT26_COND;
1979 break;
1980 case SLJIT_SIG_GREATER_EQUAL:
1981 inst = BGTZ;
1982 jump->flags |= IS_BIT26_COND;
1983 break;
1984 case SLJIT_SIG_GREATER:
1985 inst = BGEZ;
1986 jump->flags |= IS_BIT16_COND;
1987 break;
1988 case SLJIT_SIG_LESS_EQUAL:
1989 inst = BLTZ;
1990 jump->flags |= IS_BIT16_COND;
1991 break;
1992 }
1993 src1 = src2;
1994 }
1995 else {
1996 RESOLVE_IMM1();
1997 switch (type) {
1998 case SLJIT_SIG_LESS:
1999 inst = BGEZ;
2000 jump->flags |= IS_BIT16_COND;
2001 break;
2002 case SLJIT_SIG_GREATER_EQUAL:
2003 inst = BLTZ;
2004 jump->flags |= IS_BIT16_COND;
2005 break;
2006 case SLJIT_SIG_GREATER:
2007 inst = BLEZ;
2008 jump->flags |= IS_BIT26_COND;
2009 break;
2010 case SLJIT_SIG_LESS_EQUAL:
2011 inst = BGTZ;
2012 jump->flags |= IS_BIT26_COND;
2013 break;
2014 }
2015 }
2016 PTR_FAIL_IF(push_inst(compiler, inst | S(src1) | JUMP_LENGTH, UNMOVABLE_INS));
2017 }
2018 else {
2019 if (type == SLJIT_LESS || type == SLJIT_GREATER_EQUAL || type == SLJIT_SIG_LESS || type == SLJIT_SIG_GREATER_EQUAL) {
2020 RESOLVE_IMM1();
2021 if ((src2 & SLJIT_IMM) && src2w <= SIMM_MAX && src2w >= SIMM_MIN)
2022 PTR_FAIL_IF(push_inst(compiler, (type <= SLJIT_LESS_EQUAL ? SLTIU : SLTI) | S(src1) | T(TMP_REG1) | IMM(src2w), DR(TMP_REG1)));
2023 else {
2024 RESOLVE_IMM2();
2025 PTR_FAIL_IF(push_inst(compiler, (type <= SLJIT_LESS_EQUAL ? SLTU : SLT) | S(src1) | T(src2) | D(TMP_REG1), DR(TMP_REG1)));
2026 }
2027 type = (type == SLJIT_LESS || type == SLJIT_SIG_LESS) ? SLJIT_NOT_EQUAL : SLJIT_EQUAL;
2028 }
2029 else {
2030 RESOLVE_IMM2();
2031 if ((src1 & SLJIT_IMM) && src1w <= SIMM_MAX && src1w >= SIMM_MIN)
2032 PTR_FAIL_IF(push_inst(compiler, (type <= SLJIT_LESS_EQUAL ? SLTIU : SLTI) | S(src2) | T(TMP_REG1) | IMM(src1w), DR(TMP_REG1)));
2033 else {
2034 RESOLVE_IMM1();
2035 PTR_FAIL_IF(push_inst(compiler, (type <= SLJIT_LESS_EQUAL ? SLTU : SLT) | S(src2) | T(src1) | D(TMP_REG1), DR(TMP_REG1)));
2036 }
2037 type = (type == SLJIT_GREATER || type == SLJIT_SIG_GREATER) ? SLJIT_NOT_EQUAL : SLJIT_EQUAL;
2038 }
2039
2040 jump->flags |= IS_BIT26_COND;
2041 PTR_FAIL_IF(push_inst(compiler, (type == SLJIT_EQUAL ? BNE : BEQ) | S(TMP_REG1) | TA(0) | JUMP_LENGTH, UNMOVABLE_INS));
2042 }
2043
2044 PTR_FAIL_IF(emit_const(compiler, TMP_REG2, 0));
2045 PTR_FAIL_IF(push_inst(compiler, JR | S(TMP_REG2), UNMOVABLE_INS));
2046 jump->addr = compiler->size;
2047 PTR_FAIL_IF(push_inst(compiler, NOP, UNMOVABLE_INS));
2048 return jump;
2049 }
2050
2051 #undef RESOLVE_IMM1
2052 #undef RESOLVE_IMM2
2053
2054 #undef JUMP_LENGTH
2055 #undef BR_Z
2056 #undef BR_NZ
2057 #undef BR_T
2058 #undef BR_F
2059
2060 #undef FLOAT_DATA
2061 #undef FMT
2062
sljit_emit_ijump(struct sljit_compiler * compiler,sljit_s32 type,sljit_s32 src,sljit_sw srcw)2063 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_ijump(struct sljit_compiler *compiler, sljit_s32 type, sljit_s32 src, sljit_sw srcw)
2064 {
2065 struct sljit_jump *jump = NULL;
2066
2067 CHECK_ERROR();
2068 CHECK(check_sljit_emit_ijump(compiler, type, src, srcw));
2069 ADJUST_LOCAL_OFFSET(src, srcw);
2070
2071 if (src & SLJIT_IMM) {
2072 jump = (struct sljit_jump*)ensure_abuf(compiler, sizeof(struct sljit_jump));
2073 FAIL_IF(!jump);
2074 set_jump(jump, compiler, JUMP_ADDR | ((type >= SLJIT_FAST_CALL) ? IS_JAL : 0));
2075 jump->u.target = srcw;
2076
2077 if (compiler->delay_slot != UNMOVABLE_INS)
2078 jump->flags |= IS_MOVABLE;
2079
2080 FAIL_IF(emit_const(compiler, TMP_REG2, 0));
2081 src = TMP_REG2;
2082 }
2083 else if (src & SLJIT_MEM) {
2084 FAIL_IF(emit_op_mem(compiler, WORD_DATA | LOAD_DATA, DR(TMP_REG2), src, srcw));
2085 src = TMP_REG2;
2086 }
2087
2088 FAIL_IF(push_inst(compiler, JR | S(src), UNMOVABLE_INS));
2089 if (jump)
2090 jump->addr = compiler->size;
2091 FAIL_IF(push_inst(compiler, NOP, UNMOVABLE_INS));
2092 return SLJIT_SUCCESS;
2093 }
2094
sljit_emit_op_flags(struct sljit_compiler * compiler,sljit_s32 op,sljit_s32 dst,sljit_sw dstw,sljit_s32 type)2095 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_op_flags(struct sljit_compiler *compiler, sljit_s32 op,
2096 sljit_s32 dst, sljit_sw dstw,
2097 sljit_s32 type)
2098 {
2099 sljit_s32 src_ar, dst_ar;
2100 sljit_s32 saved_op = op;
2101 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
2102 sljit_s32 mem_type = WORD_DATA;
2103 #else
2104 sljit_s32 mem_type = (op & SLJIT_I32_OP) ? (INT_DATA | SIGNED_DATA) : WORD_DATA;
2105 #endif
2106
2107 CHECK_ERROR();
2108 CHECK(check_sljit_emit_op_flags(compiler, op, dst, dstw, type));
2109 ADJUST_LOCAL_OFFSET(dst, dstw);
2110
2111 op = GET_OPCODE(op);
2112 #if (defined SLJIT_CONFIG_MIPS_64 && SLJIT_CONFIG_MIPS_64)
2113 if (op == SLJIT_MOV_S32)
2114 mem_type = INT_DATA | SIGNED_DATA;
2115 #endif
2116 dst_ar = DR((op < SLJIT_ADD && FAST_IS_REG(dst)) ? dst : TMP_REG2);
2117
2118 compiler->cache_arg = 0;
2119 compiler->cache_argw = 0;
2120
2121 if (op >= SLJIT_ADD && (dst & SLJIT_MEM))
2122 FAIL_IF(emit_op_mem2(compiler, mem_type | LOAD_DATA, DR(TMP_REG1), dst, dstw, dst, dstw));
2123
2124 switch (type & 0xff) {
2125 case SLJIT_EQUAL:
2126 case SLJIT_NOT_EQUAL:
2127 FAIL_IF(push_inst(compiler, SLTIU | SA(EQUAL_FLAG) | TA(dst_ar) | IMM(1), dst_ar));
2128 src_ar = dst_ar;
2129 break;
2130 case SLJIT_MUL_OVERFLOW:
2131 case SLJIT_MUL_NOT_OVERFLOW:
2132 FAIL_IF(push_inst(compiler, SLTIU | SA(OTHER_FLAG) | TA(dst_ar) | IMM(1), dst_ar));
2133 src_ar = dst_ar;
2134 type ^= 0x1; /* Flip type bit for the XORI below. */
2135 break;
2136 case SLJIT_GREATER_F64:
2137 case SLJIT_LESS_EQUAL_F64:
2138 type ^= 0x1; /* Flip type bit for the XORI below. */
2139 case SLJIT_EQUAL_F64:
2140 case SLJIT_NOT_EQUAL_F64:
2141 case SLJIT_LESS_F64:
2142 case SLJIT_GREATER_EQUAL_F64:
2143 case SLJIT_UNORDERED_F64:
2144 case SLJIT_ORDERED_F64:
2145 #if (defined SLJIT_MIPS_REV && SLJIT_MIPS_REV >= 6)
2146 FAIL_IF(push_inst(compiler, MFC1 | TA(dst_ar) | FS(TMP_FREG3), dst_ar));
2147 #else /* SLJIT_MIPS_REV < 6 */
2148 FAIL_IF(push_inst(compiler, CFC1 | TA(dst_ar) | DA(FCSR_REG), dst_ar));
2149 #endif /* SLJIT_MIPS_REV >= 6 */
2150 FAIL_IF(push_inst(compiler, SRL | TA(dst_ar) | DA(dst_ar) | SH_IMM(23), dst_ar));
2151 FAIL_IF(push_inst(compiler, ANDI | SA(dst_ar) | TA(dst_ar) | IMM(1), dst_ar));
2152 src_ar = dst_ar;
2153 break;
2154
2155 default:
2156 src_ar = OTHER_FLAG;
2157 break;
2158 }
2159
2160 if (type & 0x1) {
2161 FAIL_IF(push_inst(compiler, XORI | SA(src_ar) | TA(dst_ar) | IMM(1), dst_ar));
2162 src_ar = dst_ar;
2163 }
2164
2165 if (op < SLJIT_ADD) {
2166 if (dst & SLJIT_MEM)
2167 return emit_op_mem(compiler, mem_type, src_ar, dst, dstw);
2168
2169 if (src_ar != dst_ar)
2170 return push_inst(compiler, ADDU_W | SA(src_ar) | TA(0) | DA(dst_ar), dst_ar);
2171 return SLJIT_SUCCESS;
2172 }
2173
2174 /* OTHER_FLAG cannot be specified as src2 argument at the moment. */
2175 if (DR(TMP_REG2) != src_ar)
2176 FAIL_IF(push_inst(compiler, ADDU_W | SA(src_ar) | TA(0) | D(TMP_REG2), DR(TMP_REG2)));
2177
2178 mem_type |= CUMULATIVE_OP | LOGICAL_OP | IMM_OP | ALT_KEEP_CACHE;
2179
2180 if (dst & SLJIT_MEM)
2181 return emit_op(compiler, saved_op, mem_type, dst, dstw, TMP_REG1, 0, TMP_REG2, 0);
2182 return emit_op(compiler, saved_op, mem_type, dst, dstw, dst, dstw, TMP_REG2, 0);
2183 }
2184
sljit_emit_cmov(struct sljit_compiler * compiler,sljit_s32 type,sljit_s32 dst_reg,sljit_s32 src,sljit_sw srcw)2185 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_cmov(struct sljit_compiler *compiler, sljit_s32 type,
2186 sljit_s32 dst_reg,
2187 sljit_s32 src, sljit_sw srcw)
2188 {
2189 #if (defined SLJIT_MIPS_REV && SLJIT_MIPS_REV >= 1 && SLJIT_MIPS_REV < 6)
2190 sljit_ins ins;
2191 #endif /* SLJIT_MIPS_REV >= 1 && SLJIT_MIPS_REV < 6 */
2192
2193 CHECK_ERROR();
2194 CHECK(check_sljit_emit_cmov(compiler, type, dst_reg, src, srcw));
2195
2196 #if (defined SLJIT_MIPS_REV && SLJIT_MIPS_REV >= 1 && SLJIT_MIPS_REV < 6)
2197
2198 if (SLJIT_UNLIKELY(src & SLJIT_IMM)) {
2199 #if (defined SLJIT_CONFIG_MIPS_64 && SLJIT_CONFIG_MIPS_64)
2200 if (dst_reg & SLJIT_I32_OP)
2201 srcw = (sljit_s32)srcw;
2202 #endif
2203 FAIL_IF(load_immediate(compiler, DR(TMP_REG1), srcw));
2204 src = TMP_REG1;
2205 srcw = 0;
2206 }
2207
2208 dst_reg &= ~SLJIT_I32_OP;
2209
2210 switch (type & 0xff) {
2211 case SLJIT_EQUAL:
2212 ins = MOVZ | TA(EQUAL_FLAG);
2213 break;
2214 case SLJIT_NOT_EQUAL:
2215 ins = MOVN | TA(EQUAL_FLAG);
2216 break;
2217 case SLJIT_LESS:
2218 case SLJIT_GREATER:
2219 case SLJIT_SIG_LESS:
2220 case SLJIT_SIG_GREATER:
2221 case SLJIT_OVERFLOW:
2222 case SLJIT_MUL_OVERFLOW:
2223 ins = MOVN | TA(OTHER_FLAG);
2224 break;
2225 case SLJIT_GREATER_EQUAL:
2226 case SLJIT_LESS_EQUAL:
2227 case SLJIT_SIG_GREATER_EQUAL:
2228 case SLJIT_SIG_LESS_EQUAL:
2229 case SLJIT_NOT_OVERFLOW:
2230 case SLJIT_MUL_NOT_OVERFLOW:
2231 ins = MOVZ | TA(OTHER_FLAG);
2232 break;
2233 case SLJIT_EQUAL_F64:
2234 case SLJIT_LESS_F64:
2235 case SLJIT_LESS_EQUAL_F64:
2236 case SLJIT_UNORDERED_F64:
2237 ins = MOVT;
2238 break;
2239 case SLJIT_NOT_EQUAL_F64:
2240 case SLJIT_GREATER_EQUAL_F64:
2241 case SLJIT_GREATER_F64:
2242 case SLJIT_ORDERED_F64:
2243 ins = MOVF;
2244 break;
2245 default:
2246 ins = MOVZ | TA(OTHER_FLAG);
2247 SLJIT_UNREACHABLE();
2248 break;
2249 }
2250
2251 return push_inst(compiler, ins | S(src) | D(dst_reg), DR(dst_reg));
2252
2253 #else /* SLJIT_MIPS_REV < 1 || SLJIT_MIPS_REV >= 6 */
2254 return sljit_emit_cmov_generic(compiler, type, dst_reg, src, srcw);
2255 #endif /* SLJIT_MIPS_REV >= 1 */
2256 }
2257
sljit_emit_const(struct sljit_compiler * compiler,sljit_s32 dst,sljit_sw dstw,sljit_sw init_value)2258 SLJIT_API_FUNC_ATTRIBUTE struct sljit_const* sljit_emit_const(struct sljit_compiler *compiler, sljit_s32 dst, sljit_sw dstw, sljit_sw init_value)
2259 {
2260 struct sljit_const *const_;
2261 sljit_s32 dst_r;
2262
2263 CHECK_ERROR_PTR();
2264 CHECK_PTR(check_sljit_emit_const(compiler, dst, dstw, init_value));
2265 ADJUST_LOCAL_OFFSET(dst, dstw);
2266
2267 const_ = (struct sljit_const*)ensure_abuf(compiler, sizeof(struct sljit_const));
2268 PTR_FAIL_IF(!const_);
2269 set_const(const_, compiler);
2270
2271 dst_r = FAST_IS_REG(dst) ? dst : TMP_REG2;
2272 PTR_FAIL_IF(emit_const(compiler, dst_r, init_value));
2273
2274 if (dst & SLJIT_MEM)
2275 PTR_FAIL_IF(emit_op(compiler, SLJIT_MOV, WORD_DATA, dst, dstw, TMP_REG1, 0, TMP_REG2, 0));
2276
2277 return const_;
2278 }
2279
sljit_emit_put_label(struct sljit_compiler * compiler,sljit_s32 dst,sljit_sw dstw)2280 SLJIT_API_FUNC_ATTRIBUTE struct sljit_put_label* sljit_emit_put_label(struct sljit_compiler *compiler, sljit_s32 dst, sljit_sw dstw)
2281 {
2282 struct sljit_put_label *put_label;
2283 sljit_s32 dst_r;
2284
2285 CHECK_ERROR_PTR();
2286 CHECK_PTR(check_sljit_emit_put_label(compiler, dst, dstw));
2287 ADJUST_LOCAL_OFFSET(dst, dstw);
2288
2289 put_label = (struct sljit_put_label*)ensure_abuf(compiler, sizeof(struct sljit_put_label));
2290 PTR_FAIL_IF(!put_label);
2291 set_put_label(put_label, compiler, 0);
2292
2293 dst_r = FAST_IS_REG(dst) ? dst : TMP_REG2;
2294 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
2295 PTR_FAIL_IF(emit_const(compiler, dst_r, 0));
2296 #else
2297 PTR_FAIL_IF(push_inst(compiler, dst_r, UNMOVABLE_INS));
2298 compiler->size += 5;
2299 #endif
2300
2301 if (dst & SLJIT_MEM)
2302 PTR_FAIL_IF(emit_op(compiler, SLJIT_MOV, WORD_DATA, dst, dstw, TMP_REG1, 0, TMP_REG2, 0));
2303
2304 return put_label;
2305 }
2306