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_ASSERT(delay_slot == MOVABLE_INS || delay_slot >= UNMOVABLE_INS
294 || delay_slot == ((ins >> 11) & 0x1f) || delay_slot == ((ins >> 16) & 0x1f));
295 sljit_ins *ptr = (sljit_ins*)ensure_buf(compiler, sizeof(sljit_ins));
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));
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 return code;
671 }
672
sljit_has_cpu_feature(sljit_s32 feature_type)673 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_has_cpu_feature(sljit_s32 feature_type)
674 {
675 sljit_sw fir = 0;
676
677 switch (feature_type) {
678 case SLJIT_HAS_FPU:
679 #ifdef SLJIT_IS_FPU_AVAILABLE
680 return SLJIT_IS_FPU_AVAILABLE;
681 #elif defined(__GNUC__)
682 asm ("cfc1 %0, $0" : "=r"(fir));
683 return (fir >> 22) & 0x1;
684 #else
685 #error "FIR check is not implemented for this architecture"
686 #endif
687 case SLJIT_HAS_ZERO_REGISTER:
688 return 1;
689
690 #if (defined SLJIT_MIPS_REV && SLJIT_MIPS_REV >= 1)
691 case SLJIT_HAS_CLZ:
692 case SLJIT_HAS_CMOV:
693 case SLJIT_HAS_PREFETCH:
694 return 1;
695 #endif /* SLJIT_MIPS_REV >= 1 */
696
697 default:
698 return fir;
699 }
700 }
701
702 /* --------------------------------------------------------------------- */
703 /* Entry, exit */
704 /* --------------------------------------------------------------------- */
705
706 /* Creates an index in data_transfer_insts array. */
707 #define LOAD_DATA 0x01
708 #define WORD_DATA 0x00
709 #define BYTE_DATA 0x02
710 #define HALF_DATA 0x04
711 #define INT_DATA 0x06
712 #define SIGNED_DATA 0x08
713 /* Separates integer and floating point registers */
714 #define GPR_REG 0x0f
715 #define DOUBLE_DATA 0x10
716 #define SINGLE_DATA 0x12
717
718 #define MEM_MASK 0x1f
719
720 #define ARG_TEST 0x00020
721 #define ALT_KEEP_CACHE 0x00040
722 #define CUMULATIVE_OP 0x00080
723 #define LOGICAL_OP 0x00100
724 #define IMM_OP 0x00200
725 #define SRC2_IMM 0x00400
726
727 #define UNUSED_DEST 0x00800
728 #define REG_DEST 0x01000
729 #define REG1_SOURCE 0x02000
730 #define REG2_SOURCE 0x04000
731 #define SLOW_SRC1 0x08000
732 #define SLOW_SRC2 0x10000
733 #define SLOW_DEST 0x20000
734
735 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
736 #define STACK_STORE SW
737 #define STACK_LOAD LW
738 #else
739 #define STACK_STORE SD
740 #define STACK_LOAD LD
741 #endif
742
743 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);
744
745 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
746 #include "sljitNativeMIPS_32.c"
747 #else
748 #include "sljitNativeMIPS_64.c"
749 #endif
750
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)751 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_enter(struct sljit_compiler *compiler,
752 sljit_s32 options, sljit_s32 arg_types, sljit_s32 scratches, sljit_s32 saveds,
753 sljit_s32 fscratches, sljit_s32 fsaveds, sljit_s32 local_size)
754 {
755 sljit_ins base;
756 sljit_s32 args, i, tmp, offs;
757
758 CHECK_ERROR();
759 CHECK(check_sljit_emit_enter(compiler, options, arg_types, scratches, saveds, fscratches, fsaveds, local_size));
760 set_emit_enter(compiler, options, arg_types, scratches, saveds, fscratches, fsaveds, local_size);
761
762 local_size += GET_SAVED_REGISTERS_SIZE(scratches, saveds, 1) + SLJIT_LOCALS_OFFSET;
763 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
764 local_size = (local_size + 15) & ~0xf;
765 #else
766 local_size = (local_size + 31) & ~0x1f;
767 #endif
768 compiler->local_size = local_size;
769
770 if (local_size <= SIMM_MAX) {
771 /* Frequent case. */
772 FAIL_IF(push_inst(compiler, ADDIU_W | S(SLJIT_SP) | T(SLJIT_SP) | IMM(-local_size), DR(SLJIT_SP)));
773 base = S(SLJIT_SP);
774 offs = local_size - (sljit_sw)sizeof(sljit_sw);
775 }
776 else {
777 FAIL_IF(load_immediate(compiler, DR(OTHER_FLAG), local_size));
778 FAIL_IF(push_inst(compiler, ADDU_W | S(SLJIT_SP) | TA(0) | D(TMP_REG2), DR(TMP_REG2)));
779 FAIL_IF(push_inst(compiler, SUBU_W | S(SLJIT_SP) | T(OTHER_FLAG) | D(SLJIT_SP), DR(SLJIT_SP)));
780 base = S(TMP_REG2);
781 local_size = 0;
782 offs = -(sljit_sw)sizeof(sljit_sw);
783 }
784
785 FAIL_IF(push_inst(compiler, STACK_STORE | base | TA(RETURN_ADDR_REG) | IMM(offs), MOVABLE_INS));
786
787 tmp = saveds < SLJIT_NUMBER_OF_SAVED_REGISTERS ? (SLJIT_S0 + 1 - saveds) : SLJIT_FIRST_SAVED_REG;
788 for (i = SLJIT_S0; i >= tmp; i--) {
789 offs -= (sljit_s32)(sizeof(sljit_sw));
790 FAIL_IF(push_inst(compiler, STACK_STORE | base | T(i) | IMM(offs), MOVABLE_INS));
791 }
792
793 for (i = scratches; i >= SLJIT_FIRST_SAVED_REG; i--) {
794 offs -= (sljit_s32)(sizeof(sljit_sw));
795 FAIL_IF(push_inst(compiler, STACK_STORE | base | T(i) | IMM(offs), MOVABLE_INS));
796 }
797
798 args = get_arg_count(arg_types);
799
800 if (args >= 1)
801 FAIL_IF(push_inst(compiler, ADDU_W | SA(4) | TA(0) | D(SLJIT_S0), DR(SLJIT_S0)));
802 if (args >= 2)
803 FAIL_IF(push_inst(compiler, ADDU_W | SA(5) | TA(0) | D(SLJIT_S1), DR(SLJIT_S1)));
804 if (args >= 3)
805 FAIL_IF(push_inst(compiler, ADDU_W | SA(6) | TA(0) | D(SLJIT_S2), DR(SLJIT_S2)));
806
807 return SLJIT_SUCCESS;
808 }
809
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)810 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_set_context(struct sljit_compiler *compiler,
811 sljit_s32 options, sljit_s32 arg_types, sljit_s32 scratches, sljit_s32 saveds,
812 sljit_s32 fscratches, sljit_s32 fsaveds, sljit_s32 local_size)
813 {
814 CHECK_ERROR();
815 CHECK(check_sljit_set_context(compiler, options, arg_types, scratches, saveds, fscratches, fsaveds, local_size));
816 set_set_context(compiler, options, arg_types, scratches, saveds, fscratches, fsaveds, local_size);
817
818 local_size += GET_SAVED_REGISTERS_SIZE(scratches, saveds, 1) + SLJIT_LOCALS_OFFSET;
819 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
820 compiler->local_size = (local_size + 15) & ~0xf;
821 #else
822 compiler->local_size = (local_size + 31) & ~0x1f;
823 #endif
824 return SLJIT_SUCCESS;
825 }
826
sljit_emit_return(struct sljit_compiler * compiler,sljit_s32 op,sljit_s32 src,sljit_sw srcw)827 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_return(struct sljit_compiler *compiler, sljit_s32 op, sljit_s32 src, sljit_sw srcw)
828 {
829 sljit_s32 local_size, i, tmp, offs;
830 sljit_ins base;
831
832 CHECK_ERROR();
833 CHECK(check_sljit_emit_return(compiler, op, src, srcw));
834
835 FAIL_IF(emit_mov_before_return(compiler, op, src, srcw));
836
837 local_size = compiler->local_size;
838 if (local_size <= SIMM_MAX)
839 base = S(SLJIT_SP);
840 else {
841 FAIL_IF(load_immediate(compiler, DR(TMP_REG1), local_size));
842 FAIL_IF(push_inst(compiler, ADDU_W | S(SLJIT_SP) | T(TMP_REG1) | D(TMP_REG1), DR(TMP_REG1)));
843 base = S(TMP_REG1);
844 local_size = 0;
845 }
846
847 FAIL_IF(push_inst(compiler, STACK_LOAD | base | TA(RETURN_ADDR_REG) | IMM(local_size - (sljit_s32)sizeof(sljit_sw)), RETURN_ADDR_REG));
848 offs = local_size - (sljit_s32)GET_SAVED_REGISTERS_SIZE(compiler->scratches, compiler->saveds, 1);
849
850 tmp = compiler->scratches;
851 for (i = SLJIT_FIRST_SAVED_REG; i <= tmp; i++) {
852 FAIL_IF(push_inst(compiler, STACK_LOAD | base | T(i) | IMM(offs), DR(i)));
853 offs += (sljit_s32)(sizeof(sljit_sw));
854 }
855
856 tmp = compiler->saveds < SLJIT_NUMBER_OF_SAVED_REGISTERS ? (SLJIT_S0 + 1 - compiler->saveds) : SLJIT_FIRST_SAVED_REG;
857 for (i = tmp; i <= SLJIT_S0; i++) {
858 FAIL_IF(push_inst(compiler, STACK_LOAD | base | T(i) | IMM(offs), DR(i)));
859 offs += (sljit_s32)(sizeof(sljit_sw));
860 }
861
862 SLJIT_ASSERT(offs == local_size - (sljit_sw)(sizeof(sljit_sw)));
863
864 FAIL_IF(push_inst(compiler, JR | SA(RETURN_ADDR_REG), UNMOVABLE_INS));
865 if (compiler->local_size <= SIMM_MAX)
866 return push_inst(compiler, ADDIU_W | S(SLJIT_SP) | T(SLJIT_SP) | IMM(compiler->local_size), UNMOVABLE_INS);
867 else
868 return push_inst(compiler, ADDU_W | S(TMP_REG1) | TA(0) | D(SLJIT_SP), UNMOVABLE_INS);
869 }
870
871 #undef STACK_STORE
872 #undef STACK_LOAD
873
874 /* --------------------------------------------------------------------- */
875 /* Operators */
876 /* --------------------------------------------------------------------- */
877
878 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
879 #define ARCH_32_64(a, b) a
880 #else
881 #define ARCH_32_64(a, b) b
882 #endif
883
884 static const sljit_ins data_transfer_insts[16 + 4] = {
885 /* u w s */ ARCH_32_64(HI(43) /* sw */, HI(63) /* sd */),
886 /* u w l */ ARCH_32_64(HI(35) /* lw */, HI(55) /* ld */),
887 /* u b s */ HI(40) /* sb */,
888 /* u b l */ HI(36) /* lbu */,
889 /* u h s */ HI(41) /* sh */,
890 /* u h l */ HI(37) /* lhu */,
891 /* u i s */ HI(43) /* sw */,
892 /* u i l */ ARCH_32_64(HI(35) /* lw */, HI(39) /* lwu */),
893
894 /* s w s */ ARCH_32_64(HI(43) /* sw */, HI(63) /* sd */),
895 /* s w l */ ARCH_32_64(HI(35) /* lw */, HI(55) /* ld */),
896 /* s b s */ HI(40) /* sb */,
897 /* s b l */ HI(32) /* lb */,
898 /* s h s */ HI(41) /* sh */,
899 /* s h l */ HI(33) /* lh */,
900 /* s i s */ HI(43) /* sw */,
901 /* s i l */ HI(35) /* lw */,
902
903 /* d s */ HI(61) /* sdc1 */,
904 /* d l */ HI(53) /* ldc1 */,
905 /* s s */ HI(57) /* swc1 */,
906 /* s l */ HI(49) /* lwc1 */,
907 };
908
909 #undef ARCH_32_64
910
911 /* reg_ar is an absoulute register! */
912
913 /* 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)914 static sljit_s32 getput_arg_fast(struct sljit_compiler *compiler, sljit_s32 flags, sljit_s32 reg_ar, sljit_s32 arg, sljit_sw argw)
915 {
916 SLJIT_ASSERT(arg & SLJIT_MEM);
917
918 if (!(arg & OFFS_REG_MASK) && argw <= SIMM_MAX && argw >= SIMM_MIN) {
919 /* Works for both absoulte and relative addresses. */
920 if (SLJIT_UNLIKELY(flags & ARG_TEST))
921 return 1;
922 FAIL_IF(push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | S(arg & REG_MASK)
923 | TA(reg_ar) | IMM(argw), ((flags & MEM_MASK) <= GPR_REG && (flags & LOAD_DATA)) ? reg_ar : MOVABLE_INS));
924 return -1;
925 }
926 return 0;
927 }
928
929 /* See getput_arg below.
930 Note: can_cache is called only for binary operators. Those
931 operators always uses word arguments without write back. */
can_cache(sljit_s32 arg,sljit_sw argw,sljit_s32 next_arg,sljit_sw next_argw)932 static sljit_s32 can_cache(sljit_s32 arg, sljit_sw argw, sljit_s32 next_arg, sljit_sw next_argw)
933 {
934 SLJIT_ASSERT((arg & SLJIT_MEM) && (next_arg & SLJIT_MEM));
935
936 /* Simple operation except for updates. */
937 if (arg & OFFS_REG_MASK) {
938 argw &= 0x3;
939 next_argw &= 0x3;
940 if (argw && argw == next_argw && (arg == next_arg || (arg & OFFS_REG_MASK) == (next_arg & OFFS_REG_MASK)))
941 return 1;
942 return 0;
943 }
944
945 if (arg == next_arg) {
946 if (((next_argw - argw) <= SIMM_MAX && (next_argw - argw) >= SIMM_MIN))
947 return 1;
948 return 0;
949 }
950
951 return 0;
952 }
953
954 /* 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)955 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)
956 {
957 sljit_s32 tmp_ar, base, delay_slot;
958
959 SLJIT_ASSERT(arg & SLJIT_MEM);
960 if (!(next_arg & SLJIT_MEM)) {
961 next_arg = 0;
962 next_argw = 0;
963 }
964
965 if ((flags & MEM_MASK) <= GPR_REG && (flags & LOAD_DATA)) {
966 tmp_ar = reg_ar;
967 delay_slot = reg_ar;
968 }
969 else {
970 tmp_ar = DR(TMP_REG1);
971 delay_slot = MOVABLE_INS;
972 }
973 base = arg & REG_MASK;
974
975 if (SLJIT_UNLIKELY(arg & OFFS_REG_MASK)) {
976 argw &= 0x3;
977
978 /* Using the cache. */
979 if (argw == compiler->cache_argw) {
980 if (arg == compiler->cache_arg)
981 return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | S(TMP_REG3) | TA(reg_ar), delay_slot);
982
983 if ((SLJIT_MEM | (arg & OFFS_REG_MASK)) == compiler->cache_arg) {
984 if (arg == next_arg && argw == (next_argw & 0x3)) {
985 compiler->cache_arg = arg;
986 compiler->cache_argw = argw;
987 FAIL_IF(push_inst(compiler, ADDU_W | S(base) | T(TMP_REG3) | D(TMP_REG3), DR(TMP_REG3)));
988 return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | S(TMP_REG3) | TA(reg_ar), delay_slot);
989 }
990 FAIL_IF(push_inst(compiler, ADDU_W | S(base) | T(TMP_REG3) | DA(tmp_ar), tmp_ar));
991 return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | SA(tmp_ar) | TA(reg_ar), delay_slot);
992 }
993 }
994
995 if (SLJIT_UNLIKELY(argw)) {
996 compiler->cache_arg = SLJIT_MEM | (arg & OFFS_REG_MASK);
997 compiler->cache_argw = argw;
998 FAIL_IF(push_inst(compiler, SLL_W | T(OFFS_REG(arg)) | D(TMP_REG3) | SH_IMM(argw), DR(TMP_REG3)));
999 }
1000
1001 if (arg == next_arg && argw == (next_argw & 0x3)) {
1002 compiler->cache_arg = arg;
1003 compiler->cache_argw = argw;
1004 FAIL_IF(push_inst(compiler, ADDU_W | S(base) | T(!argw ? OFFS_REG(arg) : TMP_REG3) | D(TMP_REG3), DR(TMP_REG3)));
1005 tmp_ar = DR(TMP_REG3);
1006 }
1007 else
1008 FAIL_IF(push_inst(compiler, ADDU_W | S(base) | T(!argw ? OFFS_REG(arg) : TMP_REG3) | DA(tmp_ar), tmp_ar));
1009 return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | SA(tmp_ar) | TA(reg_ar), delay_slot);
1010 }
1011
1012 if (compiler->cache_arg == arg && argw - compiler->cache_argw <= SIMM_MAX && argw - compiler->cache_argw >= SIMM_MIN) {
1013 if (argw != compiler->cache_argw) {
1014 FAIL_IF(push_inst(compiler, ADDIU_W | S(TMP_REG3) | T(TMP_REG3) | IMM(argw - compiler->cache_argw), DR(TMP_REG3)));
1015 compiler->cache_argw = argw;
1016 }
1017 return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | S(TMP_REG3) | TA(reg_ar), delay_slot);
1018 }
1019
1020 if (compiler->cache_arg == SLJIT_MEM && argw - compiler->cache_argw <= SIMM_MAX && argw - compiler->cache_argw >= SIMM_MIN) {
1021 if (argw != compiler->cache_argw)
1022 FAIL_IF(push_inst(compiler, ADDIU_W | S(TMP_REG3) | T(TMP_REG3) | IMM(argw - compiler->cache_argw), DR(TMP_REG3)));
1023 }
1024 else {
1025 compiler->cache_arg = SLJIT_MEM;
1026 FAIL_IF(load_immediate(compiler, DR(TMP_REG3), argw));
1027 }
1028 compiler->cache_argw = argw;
1029
1030 if (!base)
1031 return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | S(TMP_REG3) | TA(reg_ar), delay_slot);
1032
1033 if (arg == next_arg && next_argw - argw <= SIMM_MAX && next_argw - argw >= SIMM_MIN) {
1034 compiler->cache_arg = arg;
1035 FAIL_IF(push_inst(compiler, ADDU_W | S(TMP_REG3) | T(base) | D(TMP_REG3), DR(TMP_REG3)));
1036 return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | S(TMP_REG3) | TA(reg_ar), delay_slot);
1037 }
1038
1039 FAIL_IF(push_inst(compiler, ADDU_W | S(TMP_REG3) | T(base) | DA(tmp_ar), tmp_ar));
1040 return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | SA(tmp_ar) | TA(reg_ar), delay_slot);
1041 }
1042
emit_op_mem(struct sljit_compiler * compiler,sljit_s32 flags,sljit_s32 reg_ar,sljit_s32 arg,sljit_sw argw)1043 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)
1044 {
1045 sljit_s32 tmp_ar, base, delay_slot;
1046
1047 if (getput_arg_fast(compiler, flags, reg_ar, arg, argw))
1048 return compiler->error;
1049
1050 if ((flags & MEM_MASK) <= GPR_REG && (flags & LOAD_DATA)) {
1051 tmp_ar = reg_ar;
1052 delay_slot = reg_ar;
1053 }
1054 else {
1055 tmp_ar = DR(TMP_REG1);
1056 delay_slot = MOVABLE_INS;
1057 }
1058 base = arg & REG_MASK;
1059
1060 if (SLJIT_UNLIKELY(arg & OFFS_REG_MASK)) {
1061 argw &= 0x3;
1062
1063 if (SLJIT_UNLIKELY(argw)) {
1064 FAIL_IF(push_inst(compiler, SLL_W | T(OFFS_REG(arg)) | DA(tmp_ar) | SH_IMM(argw), tmp_ar));
1065 FAIL_IF(push_inst(compiler, ADDU_W | S(base) | TA(tmp_ar) | DA(tmp_ar), tmp_ar));
1066 }
1067 else
1068 FAIL_IF(push_inst(compiler, ADDU_W | S(base) | T(OFFS_REG(arg)) | DA(tmp_ar), tmp_ar));
1069 return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | SA(tmp_ar) | TA(reg_ar), delay_slot);
1070 }
1071
1072 FAIL_IF(load_immediate(compiler, tmp_ar, argw));
1073
1074 if (base != 0)
1075 FAIL_IF(push_inst(compiler, ADDU_W | S(base) | TA(tmp_ar) | DA(tmp_ar), tmp_ar));
1076
1077 return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | SA(tmp_ar) | TA(reg_ar), delay_slot);
1078 }
1079
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)1080 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)
1081 {
1082 if (getput_arg_fast(compiler, flags, reg, arg1, arg1w))
1083 return compiler->error;
1084 return getput_arg(compiler, flags, reg, arg1, arg1w, arg2, arg2w);
1085 }
1086
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)1087 static sljit_s32 emit_op(struct sljit_compiler *compiler, sljit_s32 op, sljit_s32 flags,
1088 sljit_s32 dst, sljit_sw dstw,
1089 sljit_s32 src1, sljit_sw src1w,
1090 sljit_s32 src2, sljit_sw src2w)
1091 {
1092 /* arg1 goes to TMP_REG1 or src reg
1093 arg2 goes to TMP_REG2, imm or src reg
1094 TMP_REG3 can be used for caching
1095 result goes to TMP_REG2, so put result can use TMP_REG1 and TMP_REG3. */
1096 sljit_s32 dst_r = TMP_REG2;
1097 sljit_s32 src1_r;
1098 sljit_sw src2_r = 0;
1099 sljit_s32 sugg_src2_r = TMP_REG2;
1100
1101 if (!(flags & ALT_KEEP_CACHE)) {
1102 compiler->cache_arg = 0;
1103 compiler->cache_argw = 0;
1104 }
1105
1106 if (SLJIT_UNLIKELY(dst == SLJIT_UNUSED)) {
1107 SLJIT_ASSERT(HAS_FLAGS(op));
1108 flags |= UNUSED_DEST;
1109 }
1110 else if (FAST_IS_REG(dst)) {
1111 dst_r = dst;
1112 flags |= REG_DEST;
1113 if (op >= SLJIT_MOV && op <= SLJIT_MOV_P)
1114 sugg_src2_r = dst_r;
1115 }
1116 else if ((dst & SLJIT_MEM) && !getput_arg_fast(compiler, flags | ARG_TEST, DR(TMP_REG1), dst, dstw))
1117 flags |= SLOW_DEST;
1118
1119 if (flags & IMM_OP) {
1120 if ((src2 & SLJIT_IMM) && src2w) {
1121 if ((!(flags & LOGICAL_OP) && (src2w <= SIMM_MAX && src2w >= SIMM_MIN))
1122 || ((flags & LOGICAL_OP) && !(src2w & ~UIMM_MAX))) {
1123 flags |= SRC2_IMM;
1124 src2_r = src2w;
1125 }
1126 }
1127 if (!(flags & SRC2_IMM) && (flags & CUMULATIVE_OP) && (src1 & SLJIT_IMM) && src1w) {
1128 if ((!(flags & LOGICAL_OP) && (src1w <= SIMM_MAX && src1w >= SIMM_MIN))
1129 || ((flags & LOGICAL_OP) && !(src1w & ~UIMM_MAX))) {
1130 flags |= SRC2_IMM;
1131 src2_r = src1w;
1132
1133 /* And swap arguments. */
1134 src1 = src2;
1135 src1w = src2w;
1136 src2 = SLJIT_IMM;
1137 /* src2w = src2_r unneeded. */
1138 }
1139 }
1140 }
1141
1142 /* Source 1. */
1143 if (FAST_IS_REG(src1)) {
1144 src1_r = src1;
1145 flags |= REG1_SOURCE;
1146 }
1147 else if (src1 & SLJIT_IMM) {
1148 if (src1w) {
1149 FAIL_IF(load_immediate(compiler, DR(TMP_REG1), src1w));
1150 src1_r = TMP_REG1;
1151 }
1152 else
1153 src1_r = 0;
1154 }
1155 else {
1156 if (getput_arg_fast(compiler, flags | LOAD_DATA, DR(TMP_REG1), src1, src1w))
1157 FAIL_IF(compiler->error);
1158 else
1159 flags |= SLOW_SRC1;
1160 src1_r = TMP_REG1;
1161 }
1162
1163 /* Source 2. */
1164 if (FAST_IS_REG(src2)) {
1165 src2_r = src2;
1166 flags |= REG2_SOURCE;
1167 if (!(flags & REG_DEST) && op >= SLJIT_MOV && op <= SLJIT_MOV_P)
1168 dst_r = src2_r;
1169 }
1170 else if (src2 & SLJIT_IMM) {
1171 if (!(flags & SRC2_IMM)) {
1172 if (src2w) {
1173 FAIL_IF(load_immediate(compiler, DR(sugg_src2_r), src2w));
1174 src2_r = sugg_src2_r;
1175 }
1176 else {
1177 src2_r = 0;
1178 if ((op >= SLJIT_MOV && op <= SLJIT_MOV_P) && (dst & SLJIT_MEM))
1179 dst_r = 0;
1180 }
1181 }
1182 }
1183 else {
1184 if (getput_arg_fast(compiler, flags | LOAD_DATA, DR(sugg_src2_r), src2, src2w))
1185 FAIL_IF(compiler->error);
1186 else
1187 flags |= SLOW_SRC2;
1188 src2_r = sugg_src2_r;
1189 }
1190
1191 if ((flags & (SLOW_SRC1 | SLOW_SRC2)) == (SLOW_SRC1 | SLOW_SRC2)) {
1192 SLJIT_ASSERT(src2_r == TMP_REG2);
1193 if (!can_cache(src1, src1w, src2, src2w) && can_cache(src1, src1w, dst, dstw)) {
1194 FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, DR(TMP_REG2), src2, src2w, src1, src1w));
1195 FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, DR(TMP_REG1), src1, src1w, dst, dstw));
1196 }
1197 else {
1198 FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, DR(TMP_REG1), src1, src1w, src2, src2w));
1199 FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, DR(TMP_REG2), src2, src2w, dst, dstw));
1200 }
1201 }
1202 else if (flags & SLOW_SRC1)
1203 FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, DR(TMP_REG1), src1, src1w, dst, dstw));
1204 else if (flags & SLOW_SRC2)
1205 FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, DR(sugg_src2_r), src2, src2w, dst, dstw));
1206
1207 FAIL_IF(emit_single_op(compiler, op, flags, dst_r, src1_r, src2_r));
1208
1209 if (dst & SLJIT_MEM) {
1210 if (!(flags & SLOW_DEST)) {
1211 getput_arg_fast(compiler, flags, DR(dst_r), dst, dstw);
1212 return compiler->error;
1213 }
1214 return getput_arg(compiler, flags, DR(dst_r), dst, dstw, 0, 0);
1215 }
1216
1217 return SLJIT_SUCCESS;
1218 }
1219
sljit_emit_op0(struct sljit_compiler * compiler,sljit_s32 op)1220 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_op0(struct sljit_compiler *compiler, sljit_s32 op)
1221 {
1222 #if (defined SLJIT_CONFIG_MIPS_64 && SLJIT_CONFIG_MIPS_64)
1223 sljit_s32 int_op = op & SLJIT_I32_OP;
1224 #endif
1225
1226 CHECK_ERROR();
1227 CHECK(check_sljit_emit_op0(compiler, op));
1228
1229 op = GET_OPCODE(op);
1230 switch (op) {
1231 case SLJIT_BREAKPOINT:
1232 return push_inst(compiler, BREAK, UNMOVABLE_INS);
1233 case SLJIT_NOP:
1234 return push_inst(compiler, NOP, UNMOVABLE_INS);
1235 case SLJIT_LMUL_UW:
1236 case SLJIT_LMUL_SW:
1237 #if (defined SLJIT_MIPS_REV && SLJIT_MIPS_REV >= 6)
1238 #if (defined SLJIT_CONFIG_MIPS_64 && SLJIT_CONFIG_MIPS_64)
1239 FAIL_IF(push_inst(compiler, (op == SLJIT_LMUL_UW ? DMULU : DMUL) | S(SLJIT_R0) | T(SLJIT_R1) | D(TMP_REG3), DR(TMP_REG3)));
1240 FAIL_IF(push_inst(compiler, (op == SLJIT_LMUL_UW ? DMUHU : DMUH) | S(SLJIT_R0) | T(SLJIT_R1) | D(TMP_REG1), DR(TMP_REG1)));
1241 #else /* !SLJIT_CONFIG_MIPS_64 */
1242 FAIL_IF(push_inst(compiler, (op == SLJIT_LMUL_UW ? MULU : MUL) | S(SLJIT_R0) | T(SLJIT_R1) | D(TMP_REG3), DR(TMP_REG3)));
1243 FAIL_IF(push_inst(compiler, (op == SLJIT_LMUL_UW ? MUHU : MUH) | S(SLJIT_R0) | T(SLJIT_R1) | D(TMP_REG1), DR(TMP_REG1)));
1244 #endif /* SLJIT_CONFIG_MIPS_64 */
1245 FAIL_IF(push_inst(compiler, ADDU_W | S(TMP_REG3) | TA(0) | D(SLJIT_R0), DR(SLJIT_R0)));
1246 return push_inst(compiler, ADDU_W | S(TMP_REG1) | TA(0) | D(SLJIT_R1), DR(SLJIT_R1));
1247 #else /* SLJIT_MIPS_REV < 6 */
1248 #if (defined SLJIT_CONFIG_MIPS_64 && SLJIT_CONFIG_MIPS_64)
1249 FAIL_IF(push_inst(compiler, (op == SLJIT_LMUL_UW ? DMULTU : DMULT) | S(SLJIT_R0) | T(SLJIT_R1), MOVABLE_INS));
1250 #else /* !SLJIT_CONFIG_MIPS_64 */
1251 FAIL_IF(push_inst(compiler, (op == SLJIT_LMUL_UW ? MULTU : MULT) | S(SLJIT_R0) | T(SLJIT_R1), MOVABLE_INS));
1252 #endif /* SLJIT_CONFIG_MIPS_64 */
1253 FAIL_IF(push_inst(compiler, MFLO | D(SLJIT_R0), DR(SLJIT_R0)));
1254 return push_inst(compiler, MFHI | D(SLJIT_R1), DR(SLJIT_R1));
1255 #endif /* SLJIT_MIPS_REV >= 6 */
1256 case SLJIT_DIVMOD_UW:
1257 case SLJIT_DIVMOD_SW:
1258 case SLJIT_DIV_UW:
1259 case SLJIT_DIV_SW:
1260 SLJIT_COMPILE_ASSERT((SLJIT_DIVMOD_UW & 0x2) == 0 && SLJIT_DIV_UW - 0x2 == SLJIT_DIVMOD_UW, bad_div_opcode_assignments);
1261 #if (defined SLJIT_MIPS_REV && SLJIT_MIPS_REV >= 6)
1262 #if (defined SLJIT_CONFIG_MIPS_64 && SLJIT_CONFIG_MIPS_64)
1263 if (int_op) {
1264 FAIL_IF(push_inst(compiler, ((op | 0x2) == SLJIT_DIV_UW ? DIVU : DIV) | S(SLJIT_R0) | T(SLJIT_R1) | D(TMP_REG3), DR(TMP_REG3)));
1265 FAIL_IF(push_inst(compiler, ((op | 0x2) == SLJIT_DIV_UW ? MODU : MOD) | S(SLJIT_R0) | T(SLJIT_R1) | D(TMP_REG1), DR(TMP_REG1)));
1266 }
1267 else {
1268 FAIL_IF(push_inst(compiler, ((op | 0x2) == SLJIT_DIV_UW ? DDIVU : DDIV) | S(SLJIT_R0) | T(SLJIT_R1) | D(TMP_REG3), DR(TMP_REG3)));
1269 FAIL_IF(push_inst(compiler, ((op | 0x2) == SLJIT_DIV_UW ? DMODU : DMOD) | S(SLJIT_R0) | T(SLJIT_R1) | D(TMP_REG1), DR(TMP_REG1)));
1270 }
1271 #else /* !SLJIT_CONFIG_MIPS_64 */
1272 FAIL_IF(push_inst(compiler, ((op | 0x2) == SLJIT_DIV_UW ? DIVU : DIV) | S(SLJIT_R0) | T(SLJIT_R1) | D(TMP_REG3), DR(TMP_REG3)));
1273 FAIL_IF(push_inst(compiler, ((op | 0x2) == SLJIT_DIV_UW ? MODU : MOD) | S(SLJIT_R0) | T(SLJIT_R1) | D(TMP_REG1), DR(TMP_REG1)));
1274 #endif /* SLJIT_CONFIG_MIPS_64 */
1275 FAIL_IF(push_inst(compiler, ADDU_W | S(TMP_REG3) | TA(0) | D(SLJIT_R0), DR(SLJIT_R0)));
1276 return (op >= SLJIT_DIV_UW) ? SLJIT_SUCCESS : push_inst(compiler, ADDU_W | S(TMP_REG1) | TA(0) | D(SLJIT_R1), DR(SLJIT_R1));
1277 #else /* SLJIT_MIPS_REV < 6 */
1278 #if !(defined SLJIT_MIPS_REV)
1279 FAIL_IF(push_inst(compiler, NOP, UNMOVABLE_INS));
1280 FAIL_IF(push_inst(compiler, NOP, UNMOVABLE_INS));
1281 #endif /* !SLJIT_MIPS_REV */
1282 #if (defined SLJIT_CONFIG_MIPS_64 && SLJIT_CONFIG_MIPS_64)
1283 if (int_op)
1284 FAIL_IF(push_inst(compiler, ((op | 0x2) == SLJIT_DIV_UW ? DIVU : DIV) | S(SLJIT_R0) | T(SLJIT_R1), MOVABLE_INS));
1285 else
1286 FAIL_IF(push_inst(compiler, ((op | 0x2) == SLJIT_DIV_UW ? DDIVU : DDIV) | S(SLJIT_R0) | T(SLJIT_R1), MOVABLE_INS));
1287 #else /* !SLJIT_CONFIG_MIPS_64 */
1288 FAIL_IF(push_inst(compiler, ((op | 0x2) == SLJIT_DIV_UW ? DIVU : DIV) | S(SLJIT_R0) | T(SLJIT_R1), MOVABLE_INS));
1289 #endif /* SLJIT_CONFIG_MIPS_64 */
1290 FAIL_IF(push_inst(compiler, MFLO | D(SLJIT_R0), DR(SLJIT_R0)));
1291 return (op >= SLJIT_DIV_UW) ? SLJIT_SUCCESS : push_inst(compiler, MFHI | D(SLJIT_R1), DR(SLJIT_R1));
1292 #endif /* SLJIT_MIPS_REV >= 6 */
1293 case SLJIT_ENDBR:
1294 case SLJIT_SKIP_FRAMES_BEFORE_RETURN:
1295 return SLJIT_SUCCESS;
1296 }
1297
1298 return SLJIT_SUCCESS;
1299 }
1300
1301 #if (defined SLJIT_MIPS_REV && SLJIT_MIPS_REV >= 1)
emit_prefetch(struct sljit_compiler * compiler,sljit_s32 src,sljit_sw srcw)1302 static sljit_s32 emit_prefetch(struct sljit_compiler *compiler,
1303 sljit_s32 src, sljit_sw srcw)
1304 {
1305 if (!(src & OFFS_REG_MASK)) {
1306 if (srcw <= SIMM_MAX && srcw >= SIMM_MIN)
1307 return push_inst(compiler, PREF | S(src & REG_MASK) | IMM(srcw), MOVABLE_INS);
1308
1309 FAIL_IF(load_immediate(compiler, DR(TMP_REG1), srcw));
1310 return push_inst(compiler, PREFX | S(src & REG_MASK) | T(TMP_REG1), MOVABLE_INS);
1311 }
1312
1313 srcw &= 0x3;
1314
1315 if (SLJIT_UNLIKELY(srcw != 0)) {
1316 FAIL_IF(push_inst(compiler, SLL_W | T(OFFS_REG(src)) | D(TMP_REG1) | SH_IMM(srcw), DR(TMP_REG1)));
1317 return push_inst(compiler, PREFX | S(src & REG_MASK) | T(TMP_REG1), MOVABLE_INS);
1318 }
1319
1320 return push_inst(compiler, PREFX | S(src & REG_MASK) | T(OFFS_REG(src)), MOVABLE_INS);
1321 }
1322 #endif /* SLJIT_MIPS_REV >= 1 */
1323
sljit_emit_op1(struct sljit_compiler * compiler,sljit_s32 op,sljit_s32 dst,sljit_sw dstw,sljit_s32 src,sljit_sw srcw)1324 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_op1(struct sljit_compiler *compiler, sljit_s32 op,
1325 sljit_s32 dst, sljit_sw dstw,
1326 sljit_s32 src, sljit_sw srcw)
1327 {
1328 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
1329 # define flags 0
1330 #else
1331 sljit_s32 flags = 0;
1332 #endif
1333
1334 CHECK_ERROR();
1335 CHECK(check_sljit_emit_op1(compiler, op, dst, dstw, src, srcw));
1336 ADJUST_LOCAL_OFFSET(dst, dstw);
1337 ADJUST_LOCAL_OFFSET(src, srcw);
1338
1339 #if (defined SLJIT_CONFIG_MIPS_64 && SLJIT_CONFIG_MIPS_64)
1340 if ((op & SLJIT_I32_OP) && GET_OPCODE(op) >= SLJIT_NOT)
1341 flags |= INT_DATA | SIGNED_DATA;
1342 #endif
1343
1344 switch (GET_OPCODE(op)) {
1345 case SLJIT_MOV:
1346 case SLJIT_MOV_P:
1347 return emit_op(compiler, SLJIT_MOV, WORD_DATA, dst, dstw, TMP_REG1, 0, src, srcw);
1348
1349 case SLJIT_MOV_U32:
1350 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
1351 return emit_op(compiler, SLJIT_MOV_U32, INT_DATA, dst, dstw, TMP_REG1, 0, src, srcw);
1352 #else
1353 return emit_op(compiler, SLJIT_MOV_U32, INT_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_u32)srcw : srcw);
1354 #endif
1355
1356 case SLJIT_MOV_S32:
1357 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
1358 return emit_op(compiler, SLJIT_MOV_S32, INT_DATA | SIGNED_DATA, dst, dstw, TMP_REG1, 0, src, srcw);
1359 #else
1360 return emit_op(compiler, SLJIT_MOV_S32, INT_DATA | SIGNED_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_s32)srcw : srcw);
1361 #endif
1362
1363 case SLJIT_MOV_U8:
1364 return emit_op(compiler, SLJIT_MOV_U8, BYTE_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_u8)srcw : srcw);
1365
1366 case SLJIT_MOV_S8:
1367 return emit_op(compiler, SLJIT_MOV_S8, BYTE_DATA | SIGNED_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_s8)srcw : srcw);
1368
1369 case SLJIT_MOV_U16:
1370 return emit_op(compiler, SLJIT_MOV_U16, HALF_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_u16)srcw : srcw);
1371
1372 case SLJIT_MOV_S16:
1373 return emit_op(compiler, SLJIT_MOV_S16, HALF_DATA | SIGNED_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_s16)srcw : srcw);
1374
1375 case SLJIT_NOT:
1376 return emit_op(compiler, op, flags, dst, dstw, TMP_REG1, 0, src, srcw);
1377
1378 case SLJIT_NEG:
1379 return emit_op(compiler, SLJIT_SUB | GET_ALL_FLAGS(op), flags | IMM_OP, dst, dstw, SLJIT_IMM, 0, src, srcw);
1380
1381 case SLJIT_CLZ:
1382 return emit_op(compiler, op, flags, dst, dstw, TMP_REG1, 0, src, srcw);
1383 }
1384
1385 SLJIT_UNREACHABLE();
1386 return SLJIT_SUCCESS;
1387
1388 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
1389 # undef flags
1390 #endif
1391 }
1392
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)1393 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_op2(struct sljit_compiler *compiler, sljit_s32 op,
1394 sljit_s32 dst, sljit_sw dstw,
1395 sljit_s32 src1, sljit_sw src1w,
1396 sljit_s32 src2, sljit_sw src2w)
1397 {
1398 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
1399 # define flags 0
1400 #else
1401 sljit_s32 flags = 0;
1402 #endif
1403
1404 CHECK_ERROR();
1405 CHECK(check_sljit_emit_op2(compiler, op, dst, dstw, src1, src1w, src2, src2w));
1406 ADJUST_LOCAL_OFFSET(dst, dstw);
1407 ADJUST_LOCAL_OFFSET(src1, src1w);
1408 ADJUST_LOCAL_OFFSET(src2, src2w);
1409
1410 if (dst == SLJIT_UNUSED && !HAS_FLAGS(op))
1411 return SLJIT_SUCCESS;
1412
1413 #if (defined SLJIT_CONFIG_MIPS_64 && SLJIT_CONFIG_MIPS_64)
1414 if (op & SLJIT_I32_OP) {
1415 flags |= INT_DATA | SIGNED_DATA;
1416 if (src1 & SLJIT_IMM)
1417 src1w = (sljit_s32)src1w;
1418 if (src2 & SLJIT_IMM)
1419 src2w = (sljit_s32)src2w;
1420 }
1421 #endif
1422
1423 switch (GET_OPCODE(op)) {
1424 case SLJIT_ADD:
1425 case SLJIT_ADDC:
1426 return emit_op(compiler, op, flags | CUMULATIVE_OP | IMM_OP, dst, dstw, src1, src1w, src2, src2w);
1427
1428 case SLJIT_SUB:
1429 case SLJIT_SUBC:
1430 return emit_op(compiler, op, flags | IMM_OP, dst, dstw, src1, src1w, src2, src2w);
1431
1432 case SLJIT_MUL:
1433 return emit_op(compiler, op, flags | CUMULATIVE_OP, dst, dstw, src1, src1w, src2, src2w);
1434
1435 case SLJIT_AND:
1436 case SLJIT_OR:
1437 case SLJIT_XOR:
1438 return emit_op(compiler, op, flags | CUMULATIVE_OP | LOGICAL_OP | IMM_OP, dst, dstw, src1, src1w, src2, src2w);
1439
1440 case SLJIT_SHL:
1441 case SLJIT_LSHR:
1442 case SLJIT_ASHR:
1443 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
1444 if (src2 & SLJIT_IMM)
1445 src2w &= 0x1f;
1446 #else
1447 if (src2 & SLJIT_IMM) {
1448 if (op & SLJIT_I32_OP)
1449 src2w &= 0x1f;
1450 else
1451 src2w &= 0x3f;
1452 }
1453 #endif
1454 return emit_op(compiler, op, flags | IMM_OP, dst, dstw, src1, src1w, src2, src2w);
1455 }
1456
1457 SLJIT_UNREACHABLE();
1458 return SLJIT_SUCCESS;
1459
1460 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
1461 # undef flags
1462 #endif
1463 }
1464
sljit_emit_op_src(struct sljit_compiler * compiler,sljit_s32 op,sljit_s32 src,sljit_sw srcw)1465 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_op_src(struct sljit_compiler *compiler, sljit_s32 op,
1466 sljit_s32 src, sljit_sw srcw)
1467 {
1468 CHECK_ERROR();
1469 CHECK(check_sljit_emit_op_src(compiler, op, src, srcw));
1470 ADJUST_LOCAL_OFFSET(src, srcw);
1471
1472 switch (op) {
1473 case SLJIT_FAST_RETURN:
1474 if (FAST_IS_REG(src))
1475 FAIL_IF(push_inst(compiler, ADDU_W | S(src) | TA(0) | DA(RETURN_ADDR_REG), RETURN_ADDR_REG));
1476 else
1477 FAIL_IF(emit_op_mem(compiler, WORD_DATA | LOAD_DATA, RETURN_ADDR_REG, src, srcw));
1478
1479 FAIL_IF(push_inst(compiler, JR | SA(RETURN_ADDR_REG), UNMOVABLE_INS));
1480 return push_inst(compiler, NOP, UNMOVABLE_INS);
1481 case SLJIT_SKIP_FRAMES_BEFORE_FAST_RETURN:
1482 return SLJIT_SUCCESS;
1483 case SLJIT_PREFETCH_L1:
1484 case SLJIT_PREFETCH_L2:
1485 case SLJIT_PREFETCH_L3:
1486 case SLJIT_PREFETCH_ONCE:
1487 #if (defined SLJIT_MIPS_REV && SLJIT_MIPS_REV >= 1)
1488 return emit_prefetch(compiler, src, srcw);
1489 #else /* SLJIT_MIPS_REV < 1 */
1490 return SLJIT_SUCCESS;
1491 #endif /* SLJIT_MIPS_REV >= 1 */
1492 }
1493
1494 return SLJIT_SUCCESS;
1495 }
1496
sljit_get_register_index(sljit_s32 reg)1497 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_get_register_index(sljit_s32 reg)
1498 {
1499 CHECK_REG_INDEX(check_sljit_get_register_index(reg));
1500 return reg_map[reg];
1501 }
1502
sljit_get_float_register_index(sljit_s32 reg)1503 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_get_float_register_index(sljit_s32 reg)
1504 {
1505 CHECK_REG_INDEX(check_sljit_get_float_register_index(reg));
1506 return FR(reg);
1507 }
1508
sljit_emit_op_custom(struct sljit_compiler * compiler,void * instruction,sljit_s32 size)1509 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_op_custom(struct sljit_compiler *compiler,
1510 void *instruction, sljit_s32 size)
1511 {
1512 CHECK_ERROR();
1513 CHECK(check_sljit_emit_op_custom(compiler, instruction, size));
1514
1515 return push_inst(compiler, *(sljit_ins*)instruction, UNMOVABLE_INS);
1516 }
1517
1518 /* --------------------------------------------------------------------- */
1519 /* Floating point operators */
1520 /* --------------------------------------------------------------------- */
1521
1522 #define FLOAT_DATA(op) (DOUBLE_DATA | ((op & SLJIT_F32_OP) >> 7))
1523 #define FMT(op) (((op & SLJIT_F32_OP) ^ SLJIT_F32_OP) << (21 - 8))
1524
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)1525 static SLJIT_INLINE sljit_s32 sljit_emit_fop1_conv_sw_from_f64(struct sljit_compiler *compiler, sljit_s32 op,
1526 sljit_s32 dst, sljit_sw dstw,
1527 sljit_s32 src, sljit_sw srcw)
1528 {
1529 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
1530 # define flags 0
1531 #else
1532 sljit_s32 flags = (GET_OPCODE(op) == SLJIT_CONV_SW_FROM_F64) << 21;
1533 #endif
1534
1535 if (src & SLJIT_MEM) {
1536 FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op) | LOAD_DATA, FR(TMP_FREG1), src, srcw, dst, dstw));
1537 src = TMP_FREG1;
1538 }
1539
1540 FAIL_IF(push_inst(compiler, (TRUNC_W_S ^ (flags >> 19)) | FMT(op) | FS(src) | FD(TMP_FREG1), MOVABLE_INS));
1541
1542 if (FAST_IS_REG(dst))
1543 return push_inst(compiler, MFC1 | flags | T(dst) | FS(TMP_FREG1), MOVABLE_INS);
1544
1545 /* Store the integer value from a VFP register. */
1546 return emit_op_mem2(compiler, flags ? DOUBLE_DATA : SINGLE_DATA, FR(TMP_FREG1), dst, dstw, 0, 0);
1547
1548 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
1549 # undef is_long
1550 #endif
1551 }
1552
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)1553 static SLJIT_INLINE sljit_s32 sljit_emit_fop1_conv_f64_from_sw(struct sljit_compiler *compiler, sljit_s32 op,
1554 sljit_s32 dst, sljit_sw dstw,
1555 sljit_s32 src, sljit_sw srcw)
1556 {
1557 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
1558 # define flags 0
1559 #else
1560 sljit_s32 flags = (GET_OPCODE(op) == SLJIT_CONV_F64_FROM_SW) << 21;
1561 #endif
1562
1563 sljit_s32 dst_r = FAST_IS_REG(dst) ? dst : TMP_FREG1;
1564
1565 if (FAST_IS_REG(src))
1566 FAIL_IF(push_inst(compiler, MTC1 | flags | T(src) | FS(TMP_FREG1), MOVABLE_INS));
1567 else if (src & SLJIT_MEM) {
1568 /* Load the integer value into a VFP register. */
1569 FAIL_IF(emit_op_mem2(compiler, ((flags) ? DOUBLE_DATA : SINGLE_DATA) | LOAD_DATA, FR(TMP_FREG1), src, srcw, dst, dstw));
1570 }
1571 else {
1572 #if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64)
1573 if (GET_OPCODE(op) == SLJIT_CONV_F64_FROM_S32)
1574 srcw = (sljit_s32)srcw;
1575 #endif
1576 FAIL_IF(load_immediate(compiler, DR(TMP_REG1), srcw));
1577 FAIL_IF(push_inst(compiler, MTC1 | flags | T(TMP_REG1) | FS(TMP_FREG1), MOVABLE_INS));
1578 }
1579
1580 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));
1581
1582 if (dst & SLJIT_MEM)
1583 return emit_op_mem2(compiler, FLOAT_DATA(op), FR(TMP_FREG1), dst, dstw, 0, 0);
1584 return SLJIT_SUCCESS;
1585
1586 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
1587 # undef flags
1588 #endif
1589 }
1590
sljit_emit_fop1_cmp(struct sljit_compiler * compiler,sljit_s32 op,sljit_s32 src1,sljit_sw src1w,sljit_s32 src2,sljit_sw src2w)1591 static SLJIT_INLINE sljit_s32 sljit_emit_fop1_cmp(struct sljit_compiler *compiler, sljit_s32 op,
1592 sljit_s32 src1, sljit_sw src1w,
1593 sljit_s32 src2, sljit_sw src2w)
1594 {
1595 sljit_ins inst;
1596
1597 if (src1 & SLJIT_MEM) {
1598 FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op) | LOAD_DATA, FR(TMP_FREG1), src1, src1w, src2, src2w));
1599 src1 = TMP_FREG1;
1600 }
1601
1602 if (src2 & SLJIT_MEM) {
1603 FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op) | LOAD_DATA, FR(TMP_FREG2), src2, src2w, 0, 0));
1604 src2 = TMP_FREG2;
1605 }
1606
1607 switch (GET_FLAG_TYPE(op)) {
1608 case SLJIT_EQUAL_F64:
1609 case SLJIT_NOT_EQUAL_F64:
1610 inst = C_UEQ_S;
1611 break;
1612 case SLJIT_LESS_F64:
1613 case SLJIT_GREATER_EQUAL_F64:
1614 inst = C_ULT_S;
1615 break;
1616 case SLJIT_GREATER_F64:
1617 case SLJIT_LESS_EQUAL_F64:
1618 inst = C_ULE_S;
1619 break;
1620 default:
1621 SLJIT_ASSERT(GET_FLAG_TYPE(op) == SLJIT_UNORDERED_F64 || GET_FLAG_TYPE(op) == SLJIT_ORDERED_F64);
1622 inst = C_UN_S;
1623 break;
1624 }
1625 return push_inst(compiler, inst | FMT(op) | FT(src2) | FS(src1) | C_FD, UNMOVABLE_INS);
1626 }
1627
sljit_emit_fop1(struct sljit_compiler * compiler,sljit_s32 op,sljit_s32 dst,sljit_sw dstw,sljit_s32 src,sljit_sw srcw)1628 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_fop1(struct sljit_compiler *compiler, sljit_s32 op,
1629 sljit_s32 dst, sljit_sw dstw,
1630 sljit_s32 src, sljit_sw srcw)
1631 {
1632 sljit_s32 dst_r;
1633
1634 CHECK_ERROR();
1635 compiler->cache_arg = 0;
1636 compiler->cache_argw = 0;
1637
1638 SLJIT_COMPILE_ASSERT((SLJIT_F32_OP == 0x100) && !(DOUBLE_DATA & 0x2), float_transfer_bit_error);
1639 SELECT_FOP1_OPERATION_WITH_CHECKS(compiler, op, dst, dstw, src, srcw);
1640
1641 if (GET_OPCODE(op) == SLJIT_CONV_F64_FROM_F32)
1642 op ^= SLJIT_F32_OP;
1643
1644 dst_r = FAST_IS_REG(dst) ? dst : TMP_FREG1;
1645
1646 if (src & SLJIT_MEM) {
1647 FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op) | LOAD_DATA, FR(dst_r), src, srcw, dst, dstw));
1648 src = dst_r;
1649 }
1650
1651 switch (GET_OPCODE(op)) {
1652 case SLJIT_MOV_F64:
1653 if (src != dst_r) {
1654 if (dst_r != TMP_FREG1)
1655 FAIL_IF(push_inst(compiler, MOV_S | FMT(op) | FS(src) | FD(dst_r), MOVABLE_INS));
1656 else
1657 dst_r = src;
1658 }
1659 break;
1660 case SLJIT_NEG_F64:
1661 FAIL_IF(push_inst(compiler, NEG_S | FMT(op) | FS(src) | FD(dst_r), MOVABLE_INS));
1662 break;
1663 case SLJIT_ABS_F64:
1664 FAIL_IF(push_inst(compiler, ABS_S | FMT(op) | FS(src) | FD(dst_r), MOVABLE_INS));
1665 break;
1666 case SLJIT_CONV_F64_FROM_F32:
1667 FAIL_IF(push_inst(compiler, CVT_S_S | ((op & SLJIT_F32_OP) ? 1 : (1 << 21)) | FS(src) | FD(dst_r), MOVABLE_INS));
1668 op ^= SLJIT_F32_OP;
1669 break;
1670 }
1671
1672 if (dst & SLJIT_MEM)
1673 return emit_op_mem2(compiler, FLOAT_DATA(op), FR(dst_r), dst, dstw, 0, 0);
1674 return SLJIT_SUCCESS;
1675 }
1676
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)1677 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_fop2(struct sljit_compiler *compiler, sljit_s32 op,
1678 sljit_s32 dst, sljit_sw dstw,
1679 sljit_s32 src1, sljit_sw src1w,
1680 sljit_s32 src2, sljit_sw src2w)
1681 {
1682 sljit_s32 dst_r, flags = 0;
1683
1684 CHECK_ERROR();
1685 CHECK(check_sljit_emit_fop2(compiler, op, dst, dstw, src1, src1w, src2, src2w));
1686 ADJUST_LOCAL_OFFSET(dst, dstw);
1687 ADJUST_LOCAL_OFFSET(src1, src1w);
1688 ADJUST_LOCAL_OFFSET(src2, src2w);
1689
1690 compiler->cache_arg = 0;
1691 compiler->cache_argw = 0;
1692
1693 dst_r = FAST_IS_REG(dst) ? dst : TMP_FREG2;
1694
1695 if (src1 & SLJIT_MEM) {
1696 if (getput_arg_fast(compiler, FLOAT_DATA(op) | LOAD_DATA, FR(TMP_FREG1), src1, src1w)) {
1697 FAIL_IF(compiler->error);
1698 src1 = TMP_FREG1;
1699 } else
1700 flags |= SLOW_SRC1;
1701 }
1702
1703 if (src2 & SLJIT_MEM) {
1704 if (getput_arg_fast(compiler, FLOAT_DATA(op) | LOAD_DATA, FR(TMP_FREG2), src2, src2w)) {
1705 FAIL_IF(compiler->error);
1706 src2 = TMP_FREG2;
1707 } else
1708 flags |= SLOW_SRC2;
1709 }
1710
1711 if ((flags & (SLOW_SRC1 | SLOW_SRC2)) == (SLOW_SRC1 | SLOW_SRC2)) {
1712 if (!can_cache(src1, src1w, src2, src2w) && can_cache(src1, src1w, dst, dstw)) {
1713 FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, FR(TMP_FREG2), src2, src2w, src1, src1w));
1714 FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, FR(TMP_FREG1), src1, src1w, dst, dstw));
1715 }
1716 else {
1717 FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, FR(TMP_FREG1), src1, src1w, src2, src2w));
1718 FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, FR(TMP_FREG2), src2, src2w, dst, dstw));
1719 }
1720 }
1721 else if (flags & SLOW_SRC1)
1722 FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, FR(TMP_FREG1), src1, src1w, dst, dstw));
1723 else if (flags & SLOW_SRC2)
1724 FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, FR(TMP_FREG2), src2, src2w, dst, dstw));
1725
1726 if (flags & SLOW_SRC1)
1727 src1 = TMP_FREG1;
1728 if (flags & SLOW_SRC2)
1729 src2 = TMP_FREG2;
1730
1731 switch (GET_OPCODE(op)) {
1732 case SLJIT_ADD_F64:
1733 FAIL_IF(push_inst(compiler, ADD_S | FMT(op) | FT(src2) | FS(src1) | FD(dst_r), MOVABLE_INS));
1734 break;
1735
1736 case SLJIT_SUB_F64:
1737 FAIL_IF(push_inst(compiler, SUB_S | FMT(op) | FT(src2) | FS(src1) | FD(dst_r), MOVABLE_INS));
1738 break;
1739
1740 case SLJIT_MUL_F64:
1741 FAIL_IF(push_inst(compiler, MUL_S | FMT(op) | FT(src2) | FS(src1) | FD(dst_r), MOVABLE_INS));
1742 break;
1743
1744 case SLJIT_DIV_F64:
1745 FAIL_IF(push_inst(compiler, DIV_S | FMT(op) | FT(src2) | FS(src1) | FD(dst_r), MOVABLE_INS));
1746 break;
1747 }
1748
1749 if (dst_r == TMP_FREG2)
1750 FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op), FR(TMP_FREG2), dst, dstw, 0, 0));
1751
1752 return SLJIT_SUCCESS;
1753 }
1754
1755 /* --------------------------------------------------------------------- */
1756 /* Other instructions */
1757 /* --------------------------------------------------------------------- */
1758
sljit_emit_fast_enter(struct sljit_compiler * compiler,sljit_s32 dst,sljit_sw dstw)1759 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_fast_enter(struct sljit_compiler *compiler, sljit_s32 dst, sljit_sw dstw)
1760 {
1761 CHECK_ERROR();
1762 CHECK(check_sljit_emit_fast_enter(compiler, dst, dstw));
1763 ADJUST_LOCAL_OFFSET(dst, dstw);
1764
1765 if (FAST_IS_REG(dst))
1766 return push_inst(compiler, ADDU_W | SA(RETURN_ADDR_REG) | TA(0) | D(dst), UNMOVABLE_INS);
1767
1768 /* Memory. */
1769 FAIL_IF(emit_op_mem(compiler, WORD_DATA, RETURN_ADDR_REG, dst, dstw));
1770 compiler->delay_slot = UNMOVABLE_INS;
1771 return SLJIT_SUCCESS;
1772 }
1773
1774 /* --------------------------------------------------------------------- */
1775 /* Conditional instructions */
1776 /* --------------------------------------------------------------------- */
1777
sljit_emit_label(struct sljit_compiler * compiler)1778 SLJIT_API_FUNC_ATTRIBUTE struct sljit_label* sljit_emit_label(struct sljit_compiler *compiler)
1779 {
1780 struct sljit_label *label;
1781
1782 CHECK_ERROR_PTR();
1783 CHECK_PTR(check_sljit_emit_label(compiler));
1784
1785 if (compiler->last_label && compiler->last_label->size == compiler->size)
1786 return compiler->last_label;
1787
1788 label = (struct sljit_label*)ensure_abuf(compiler, sizeof(struct sljit_label));
1789 PTR_FAIL_IF(!label);
1790 set_label(label, compiler);
1791 compiler->delay_slot = UNMOVABLE_INS;
1792 return label;
1793 }
1794
1795 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
1796 #define JUMP_LENGTH 4
1797 #else
1798 #define JUMP_LENGTH 8
1799 #endif
1800
1801 #define BR_Z(src) \
1802 inst = BEQ | SA(src) | TA(0) | JUMP_LENGTH; \
1803 flags = IS_BIT26_COND; \
1804 delay_check = src;
1805
1806 #define BR_NZ(src) \
1807 inst = BNE | SA(src) | TA(0) | JUMP_LENGTH; \
1808 flags = IS_BIT26_COND; \
1809 delay_check = src;
1810
1811 #if (defined SLJIT_MIPS_REV && SLJIT_MIPS_REV >= 6)
1812
1813 #define BR_T() \
1814 inst = BC1NEZ; \
1815 flags = IS_BIT23_COND; \
1816 delay_check = FCSR_FCC;
1817 #define BR_F() \
1818 inst = BC1EQZ; \
1819 flags = IS_BIT23_COND; \
1820 delay_check = FCSR_FCC;
1821
1822 #else /* SLJIT_MIPS_REV < 6 */
1823
1824 #define BR_T() \
1825 inst = BC1T | JUMP_LENGTH; \
1826 flags = IS_BIT16_COND; \
1827 delay_check = FCSR_FCC;
1828 #define BR_F() \
1829 inst = BC1F | JUMP_LENGTH; \
1830 flags = IS_BIT16_COND; \
1831 delay_check = FCSR_FCC;
1832
1833 #endif /* SLJIT_MIPS_REV >= 6 */
1834
sljit_emit_jump(struct sljit_compiler * compiler,sljit_s32 type)1835 SLJIT_API_FUNC_ATTRIBUTE struct sljit_jump* sljit_emit_jump(struct sljit_compiler *compiler, sljit_s32 type)
1836 {
1837 struct sljit_jump *jump;
1838 sljit_ins inst;
1839 sljit_s32 flags = 0;
1840 sljit_s32 delay_check = UNMOVABLE_INS;
1841
1842 CHECK_ERROR_PTR();
1843 CHECK_PTR(check_sljit_emit_jump(compiler, type));
1844
1845 jump = (struct sljit_jump*)ensure_abuf(compiler, sizeof(struct sljit_jump));
1846 PTR_FAIL_IF(!jump);
1847 set_jump(jump, compiler, type & SLJIT_REWRITABLE_JUMP);
1848 type &= 0xff;
1849
1850 switch (type) {
1851 case SLJIT_EQUAL:
1852 BR_NZ(EQUAL_FLAG);
1853 break;
1854 case SLJIT_NOT_EQUAL:
1855 BR_Z(EQUAL_FLAG);
1856 break;
1857 case SLJIT_LESS:
1858 case SLJIT_GREATER:
1859 case SLJIT_SIG_LESS:
1860 case SLJIT_SIG_GREATER:
1861 case SLJIT_OVERFLOW:
1862 case SLJIT_MUL_OVERFLOW:
1863 BR_Z(OTHER_FLAG);
1864 break;
1865 case SLJIT_GREATER_EQUAL:
1866 case SLJIT_LESS_EQUAL:
1867 case SLJIT_SIG_GREATER_EQUAL:
1868 case SLJIT_SIG_LESS_EQUAL:
1869 case SLJIT_NOT_OVERFLOW:
1870 case SLJIT_MUL_NOT_OVERFLOW:
1871 BR_NZ(OTHER_FLAG);
1872 break;
1873 case SLJIT_NOT_EQUAL_F64:
1874 case SLJIT_GREATER_EQUAL_F64:
1875 case SLJIT_GREATER_F64:
1876 case SLJIT_ORDERED_F64:
1877 BR_T();
1878 break;
1879 case SLJIT_EQUAL_F64:
1880 case SLJIT_LESS_F64:
1881 case SLJIT_LESS_EQUAL_F64:
1882 case SLJIT_UNORDERED_F64:
1883 BR_F();
1884 break;
1885 default:
1886 /* Not conditional branch. */
1887 inst = 0;
1888 break;
1889 }
1890
1891 jump->flags |= flags;
1892 if (compiler->delay_slot == MOVABLE_INS || (compiler->delay_slot != UNMOVABLE_INS && compiler->delay_slot != delay_check))
1893 jump->flags |= IS_MOVABLE;
1894
1895 if (inst)
1896 PTR_FAIL_IF(push_inst(compiler, inst, UNMOVABLE_INS));
1897
1898 PTR_FAIL_IF(emit_const(compiler, TMP_REG2, 0));
1899
1900 if (type <= SLJIT_JUMP)
1901 PTR_FAIL_IF(push_inst(compiler, JR | S(TMP_REG2), UNMOVABLE_INS));
1902 else {
1903 jump->flags |= IS_JAL;
1904 PTR_FAIL_IF(push_inst(compiler, JALR | S(TMP_REG2) | DA(RETURN_ADDR_REG), UNMOVABLE_INS));
1905 }
1906
1907 jump->addr = compiler->size;
1908 PTR_FAIL_IF(push_inst(compiler, NOP, UNMOVABLE_INS));
1909 return jump;
1910 }
1911
1912 #define RESOLVE_IMM1() \
1913 if (src1 & SLJIT_IMM) { \
1914 if (src1w) { \
1915 PTR_FAIL_IF(load_immediate(compiler, DR(TMP_REG1), src1w)); \
1916 src1 = TMP_REG1; \
1917 } \
1918 else \
1919 src1 = 0; \
1920 }
1921
1922 #define RESOLVE_IMM2() \
1923 if (src2 & SLJIT_IMM) { \
1924 if (src2w) { \
1925 PTR_FAIL_IF(load_immediate(compiler, DR(TMP_REG2), src2w)); \
1926 src2 = TMP_REG2; \
1927 } \
1928 else \
1929 src2 = 0; \
1930 }
1931
sljit_emit_cmp(struct sljit_compiler * compiler,sljit_s32 type,sljit_s32 src1,sljit_sw src1w,sljit_s32 src2,sljit_sw src2w)1932 SLJIT_API_FUNC_ATTRIBUTE struct sljit_jump* sljit_emit_cmp(struct sljit_compiler *compiler, sljit_s32 type,
1933 sljit_s32 src1, sljit_sw src1w,
1934 sljit_s32 src2, sljit_sw src2w)
1935 {
1936 struct sljit_jump *jump;
1937 sljit_s32 flags;
1938 sljit_ins inst;
1939
1940 CHECK_ERROR_PTR();
1941 CHECK_PTR(check_sljit_emit_cmp(compiler, type, src1, src1w, src2, src2w));
1942 ADJUST_LOCAL_OFFSET(src1, src1w);
1943 ADJUST_LOCAL_OFFSET(src2, src2w);
1944
1945 compiler->cache_arg = 0;
1946 compiler->cache_argw = 0;
1947 flags = ((type & SLJIT_I32_OP) ? INT_DATA : WORD_DATA) | LOAD_DATA;
1948 if (src1 & SLJIT_MEM) {
1949 PTR_FAIL_IF(emit_op_mem2(compiler, flags, DR(TMP_REG1), src1, src1w, src2, src2w));
1950 src1 = TMP_REG1;
1951 }
1952 if (src2 & SLJIT_MEM) {
1953 PTR_FAIL_IF(emit_op_mem2(compiler, flags, DR(TMP_REG2), src2, src2w, 0, 0));
1954 src2 = TMP_REG2;
1955 }
1956
1957 jump = (struct sljit_jump*)ensure_abuf(compiler, sizeof(struct sljit_jump));
1958 PTR_FAIL_IF(!jump);
1959 set_jump(jump, compiler, type & SLJIT_REWRITABLE_JUMP);
1960 type &= 0xff;
1961
1962 if (type <= SLJIT_NOT_EQUAL) {
1963 RESOLVE_IMM1();
1964 RESOLVE_IMM2();
1965 jump->flags |= IS_BIT26_COND;
1966 if (compiler->delay_slot == MOVABLE_INS || (compiler->delay_slot != UNMOVABLE_INS && compiler->delay_slot != DR(src1) && compiler->delay_slot != DR(src2)))
1967 jump->flags |= IS_MOVABLE;
1968 PTR_FAIL_IF(push_inst(compiler, (type == SLJIT_EQUAL ? BNE : BEQ) | S(src1) | T(src2) | JUMP_LENGTH, UNMOVABLE_INS));
1969 }
1970 else if (type >= SLJIT_SIG_LESS && (((src1 & SLJIT_IMM) && (src1w == 0)) || ((src2 & SLJIT_IMM) && (src2w == 0)))) {
1971 inst = NOP;
1972 if ((src1 & SLJIT_IMM) && (src1w == 0)) {
1973 RESOLVE_IMM2();
1974 switch (type) {
1975 case SLJIT_SIG_LESS:
1976 inst = BLEZ;
1977 jump->flags |= IS_BIT26_COND;
1978 break;
1979 case SLJIT_SIG_GREATER_EQUAL:
1980 inst = BGTZ;
1981 jump->flags |= IS_BIT26_COND;
1982 break;
1983 case SLJIT_SIG_GREATER:
1984 inst = BGEZ;
1985 jump->flags |= IS_BIT16_COND;
1986 break;
1987 case SLJIT_SIG_LESS_EQUAL:
1988 inst = BLTZ;
1989 jump->flags |= IS_BIT16_COND;
1990 break;
1991 }
1992 src1 = src2;
1993 }
1994 else {
1995 RESOLVE_IMM1();
1996 switch (type) {
1997 case SLJIT_SIG_LESS:
1998 inst = BGEZ;
1999 jump->flags |= IS_BIT16_COND;
2000 break;
2001 case SLJIT_SIG_GREATER_EQUAL:
2002 inst = BLTZ;
2003 jump->flags |= IS_BIT16_COND;
2004 break;
2005 case SLJIT_SIG_GREATER:
2006 inst = BLEZ;
2007 jump->flags |= IS_BIT26_COND;
2008 break;
2009 case SLJIT_SIG_LESS_EQUAL:
2010 inst = BGTZ;
2011 jump->flags |= IS_BIT26_COND;
2012 break;
2013 }
2014 }
2015 PTR_FAIL_IF(push_inst(compiler, inst | S(src1) | JUMP_LENGTH, UNMOVABLE_INS));
2016 }
2017 else {
2018 if (type == SLJIT_LESS || type == SLJIT_GREATER_EQUAL || type == SLJIT_SIG_LESS || type == SLJIT_SIG_GREATER_EQUAL) {
2019 RESOLVE_IMM1();
2020 if ((src2 & SLJIT_IMM) && src2w <= SIMM_MAX && src2w >= SIMM_MIN)
2021 PTR_FAIL_IF(push_inst(compiler, (type <= SLJIT_LESS_EQUAL ? SLTIU : SLTI) | S(src1) | T(TMP_REG1) | IMM(src2w), DR(TMP_REG1)));
2022 else {
2023 RESOLVE_IMM2();
2024 PTR_FAIL_IF(push_inst(compiler, (type <= SLJIT_LESS_EQUAL ? SLTU : SLT) | S(src1) | T(src2) | D(TMP_REG1), DR(TMP_REG1)));
2025 }
2026 type = (type == SLJIT_LESS || type == SLJIT_SIG_LESS) ? SLJIT_NOT_EQUAL : SLJIT_EQUAL;
2027 }
2028 else {
2029 RESOLVE_IMM2();
2030 if ((src1 & SLJIT_IMM) && src1w <= SIMM_MAX && src1w >= SIMM_MIN)
2031 PTR_FAIL_IF(push_inst(compiler, (type <= SLJIT_LESS_EQUAL ? SLTIU : SLTI) | S(src2) | T(TMP_REG1) | IMM(src1w), DR(TMP_REG1)));
2032 else {
2033 RESOLVE_IMM1();
2034 PTR_FAIL_IF(push_inst(compiler, (type <= SLJIT_LESS_EQUAL ? SLTU : SLT) | S(src2) | T(src1) | D(TMP_REG1), DR(TMP_REG1)));
2035 }
2036 type = (type == SLJIT_GREATER || type == SLJIT_SIG_GREATER) ? SLJIT_NOT_EQUAL : SLJIT_EQUAL;
2037 }
2038
2039 jump->flags |= IS_BIT26_COND;
2040 PTR_FAIL_IF(push_inst(compiler, (type == SLJIT_EQUAL ? BNE : BEQ) | S(TMP_REG1) | TA(0) | JUMP_LENGTH, UNMOVABLE_INS));
2041 }
2042
2043 PTR_FAIL_IF(emit_const(compiler, TMP_REG2, 0));
2044 PTR_FAIL_IF(push_inst(compiler, JR | S(TMP_REG2), UNMOVABLE_INS));
2045 jump->addr = compiler->size;
2046 PTR_FAIL_IF(push_inst(compiler, NOP, UNMOVABLE_INS));
2047 return jump;
2048 }
2049
2050 #undef RESOLVE_IMM1
2051 #undef RESOLVE_IMM2
2052
2053 #undef JUMP_LENGTH
2054 #undef BR_Z
2055 #undef BR_NZ
2056 #undef BR_T
2057 #undef BR_F
2058
2059 #undef FLOAT_DATA
2060 #undef FMT
2061
sljit_emit_ijump(struct sljit_compiler * compiler,sljit_s32 type,sljit_s32 src,sljit_sw srcw)2062 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_ijump(struct sljit_compiler *compiler, sljit_s32 type, sljit_s32 src, sljit_sw srcw)
2063 {
2064 struct sljit_jump *jump = NULL;
2065
2066 CHECK_ERROR();
2067 CHECK(check_sljit_emit_ijump(compiler, type, src, srcw));
2068 ADJUST_LOCAL_OFFSET(src, srcw);
2069
2070 if (src & SLJIT_IMM) {
2071 jump = (struct sljit_jump*)ensure_abuf(compiler, sizeof(struct sljit_jump));
2072 FAIL_IF(!jump);
2073 set_jump(jump, compiler, JUMP_ADDR | ((type >= SLJIT_FAST_CALL) ? IS_JAL : 0));
2074 jump->u.target = srcw;
2075
2076 if (compiler->delay_slot != UNMOVABLE_INS)
2077 jump->flags |= IS_MOVABLE;
2078
2079 FAIL_IF(emit_const(compiler, TMP_REG2, 0));
2080 src = TMP_REG2;
2081 }
2082 else if (src & SLJIT_MEM) {
2083 FAIL_IF(emit_op_mem(compiler, WORD_DATA | LOAD_DATA, DR(TMP_REG2), src, srcw));
2084 src = TMP_REG2;
2085 }
2086
2087 FAIL_IF(push_inst(compiler, JR | S(src), UNMOVABLE_INS));
2088 if (jump)
2089 jump->addr = compiler->size;
2090 FAIL_IF(push_inst(compiler, NOP, UNMOVABLE_INS));
2091 return SLJIT_SUCCESS;
2092 }
2093
sljit_emit_op_flags(struct sljit_compiler * compiler,sljit_s32 op,sljit_s32 dst,sljit_sw dstw,sljit_s32 type)2094 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_op_flags(struct sljit_compiler *compiler, sljit_s32 op,
2095 sljit_s32 dst, sljit_sw dstw,
2096 sljit_s32 type)
2097 {
2098 sljit_s32 src_ar, dst_ar;
2099 sljit_s32 saved_op = op;
2100 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
2101 sljit_s32 mem_type = WORD_DATA;
2102 #else
2103 sljit_s32 mem_type = (op & SLJIT_I32_OP) ? (INT_DATA | SIGNED_DATA) : WORD_DATA;
2104 #endif
2105
2106 CHECK_ERROR();
2107 CHECK(check_sljit_emit_op_flags(compiler, op, dst, dstw, type));
2108 ADJUST_LOCAL_OFFSET(dst, dstw);
2109
2110 op = GET_OPCODE(op);
2111 #if (defined SLJIT_CONFIG_MIPS_64 && SLJIT_CONFIG_MIPS_64)
2112 if (op == SLJIT_MOV_S32)
2113 mem_type = INT_DATA | SIGNED_DATA;
2114 #endif
2115 dst_ar = DR((op < SLJIT_ADD && FAST_IS_REG(dst)) ? dst : TMP_REG2);
2116
2117 compiler->cache_arg = 0;
2118 compiler->cache_argw = 0;
2119
2120 if (op >= SLJIT_ADD && (dst & SLJIT_MEM))
2121 FAIL_IF(emit_op_mem2(compiler, mem_type | LOAD_DATA, DR(TMP_REG1), dst, dstw, dst, dstw));
2122
2123 switch (type & 0xff) {
2124 case SLJIT_EQUAL:
2125 case SLJIT_NOT_EQUAL:
2126 FAIL_IF(push_inst(compiler, SLTIU | SA(EQUAL_FLAG) | TA(dst_ar) | IMM(1), dst_ar));
2127 src_ar = dst_ar;
2128 break;
2129 case SLJIT_MUL_OVERFLOW:
2130 case SLJIT_MUL_NOT_OVERFLOW:
2131 FAIL_IF(push_inst(compiler, SLTIU | SA(OTHER_FLAG) | TA(dst_ar) | IMM(1), dst_ar));
2132 src_ar = dst_ar;
2133 type ^= 0x1; /* Flip type bit for the XORI below. */
2134 break;
2135 case SLJIT_GREATER_F64:
2136 case SLJIT_LESS_EQUAL_F64:
2137 type ^= 0x1; /* Flip type bit for the XORI below. */
2138 case SLJIT_EQUAL_F64:
2139 case SLJIT_NOT_EQUAL_F64:
2140 case SLJIT_LESS_F64:
2141 case SLJIT_GREATER_EQUAL_F64:
2142 case SLJIT_UNORDERED_F64:
2143 case SLJIT_ORDERED_F64:
2144 #if (defined SLJIT_MIPS_REV && SLJIT_MIPS_REV >= 6)
2145 FAIL_IF(push_inst(compiler, MFC1 | TA(dst_ar) | FS(TMP_FREG3), dst_ar));
2146 #else /* SLJIT_MIPS_REV < 6 */
2147 FAIL_IF(push_inst(compiler, CFC1 | TA(dst_ar) | DA(FCSR_REG), dst_ar));
2148 #endif /* SLJIT_MIPS_REV >= 6 */
2149 FAIL_IF(push_inst(compiler, SRL | TA(dst_ar) | DA(dst_ar) | SH_IMM(23), dst_ar));
2150 FAIL_IF(push_inst(compiler, ANDI | SA(dst_ar) | TA(dst_ar) | IMM(1), dst_ar));
2151 src_ar = dst_ar;
2152 break;
2153
2154 default:
2155 src_ar = OTHER_FLAG;
2156 break;
2157 }
2158
2159 if (type & 0x1) {
2160 FAIL_IF(push_inst(compiler, XORI | SA(src_ar) | TA(dst_ar) | IMM(1), dst_ar));
2161 src_ar = dst_ar;
2162 }
2163
2164 if (op < SLJIT_ADD) {
2165 if (dst & SLJIT_MEM)
2166 return emit_op_mem(compiler, mem_type, src_ar, dst, dstw);
2167
2168 if (src_ar != dst_ar)
2169 return push_inst(compiler, ADDU_W | SA(src_ar) | TA(0) | DA(dst_ar), dst_ar);
2170 return SLJIT_SUCCESS;
2171 }
2172
2173 /* OTHER_FLAG cannot be specified as src2 argument at the moment. */
2174 if (DR(TMP_REG2) != src_ar)
2175 FAIL_IF(push_inst(compiler, ADDU_W | SA(src_ar) | TA(0) | D(TMP_REG2), DR(TMP_REG2)));
2176
2177 mem_type |= CUMULATIVE_OP | LOGICAL_OP | IMM_OP | ALT_KEEP_CACHE;
2178
2179 if (dst & SLJIT_MEM)
2180 return emit_op(compiler, saved_op, mem_type, dst, dstw, TMP_REG1, 0, TMP_REG2, 0);
2181 return emit_op(compiler, saved_op, mem_type, dst, dstw, dst, dstw, TMP_REG2, 0);
2182 }
2183
sljit_emit_cmov(struct sljit_compiler * compiler,sljit_s32 type,sljit_s32 dst_reg,sljit_s32 src,sljit_sw srcw)2184 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_cmov(struct sljit_compiler *compiler, sljit_s32 type,
2185 sljit_s32 dst_reg,
2186 sljit_s32 src, sljit_sw srcw)
2187 {
2188 #if (defined SLJIT_MIPS_REV && SLJIT_MIPS_REV >= 1)
2189 sljit_ins ins;
2190 #endif /* SLJIT_MIPS_REV >= 1 */
2191
2192 CHECK_ERROR();
2193 CHECK(check_sljit_emit_cmov(compiler, type, dst_reg, src, srcw));
2194
2195 #if (defined SLJIT_MIPS_REV && SLJIT_MIPS_REV >= 1)
2196
2197 if (SLJIT_UNLIKELY(src & SLJIT_IMM)) {
2198 #if (defined SLJIT_CONFIG_MIPS_64 && SLJIT_CONFIG_MIPS_64)
2199 if (dst_reg & SLJIT_I32_OP)
2200 srcw = (sljit_s32)srcw;
2201 #endif
2202 FAIL_IF(load_immediate(compiler, DR(TMP_REG1), srcw));
2203 src = TMP_REG1;
2204 srcw = 0;
2205 }
2206
2207 dst_reg &= ~SLJIT_I32_OP;
2208
2209 switch (type & 0xff) {
2210 case SLJIT_EQUAL:
2211 ins = MOVZ | TA(EQUAL_FLAG);
2212 break;
2213 case SLJIT_NOT_EQUAL:
2214 ins = MOVN | TA(EQUAL_FLAG);
2215 break;
2216 case SLJIT_LESS:
2217 case SLJIT_GREATER:
2218 case SLJIT_SIG_LESS:
2219 case SLJIT_SIG_GREATER:
2220 case SLJIT_OVERFLOW:
2221 case SLJIT_MUL_OVERFLOW:
2222 ins = MOVN | TA(OTHER_FLAG);
2223 break;
2224 case SLJIT_GREATER_EQUAL:
2225 case SLJIT_LESS_EQUAL:
2226 case SLJIT_SIG_GREATER_EQUAL:
2227 case SLJIT_SIG_LESS_EQUAL:
2228 case SLJIT_NOT_OVERFLOW:
2229 case SLJIT_MUL_NOT_OVERFLOW:
2230 ins = MOVZ | TA(OTHER_FLAG);
2231 break;
2232 case SLJIT_EQUAL_F64:
2233 case SLJIT_LESS_F64:
2234 case SLJIT_LESS_EQUAL_F64:
2235 case SLJIT_UNORDERED_F64:
2236 ins = MOVT;
2237 break;
2238 case SLJIT_NOT_EQUAL_F64:
2239 case SLJIT_GREATER_EQUAL_F64:
2240 case SLJIT_GREATER_F64:
2241 case SLJIT_ORDERED_F64:
2242 ins = MOVF;
2243 break;
2244 default:
2245 ins = MOVZ | TA(OTHER_FLAG);
2246 SLJIT_UNREACHABLE();
2247 break;
2248 }
2249
2250 return push_inst(compiler, ins | S(src) | D(dst_reg), DR(dst_reg));
2251
2252 #else /* SLJIT_MIPS_REV < 1 */
2253 return sljit_emit_cmov_generic(compiler, type, dst_reg, src, srcw);
2254 #endif /* SLJIT_MIPS_REV >= 1 */
2255 }
2256
sljit_emit_const(struct sljit_compiler * compiler,sljit_s32 dst,sljit_sw dstw,sljit_sw init_value)2257 SLJIT_API_FUNC_ATTRIBUTE struct sljit_const* sljit_emit_const(struct sljit_compiler *compiler, sljit_s32 dst, sljit_sw dstw, sljit_sw init_value)
2258 {
2259 struct sljit_const *const_;
2260 sljit_s32 dst_r;
2261
2262 CHECK_ERROR_PTR();
2263 CHECK_PTR(check_sljit_emit_const(compiler, dst, dstw, init_value));
2264 ADJUST_LOCAL_OFFSET(dst, dstw);
2265
2266 const_ = (struct sljit_const*)ensure_abuf(compiler, sizeof(struct sljit_const));
2267 PTR_FAIL_IF(!const_);
2268 set_const(const_, compiler);
2269
2270 dst_r = FAST_IS_REG(dst) ? dst : TMP_REG2;
2271 PTR_FAIL_IF(emit_const(compiler, dst_r, init_value));
2272
2273 if (dst & SLJIT_MEM)
2274 PTR_FAIL_IF(emit_op(compiler, SLJIT_MOV, WORD_DATA, dst, dstw, TMP_REG1, 0, TMP_REG2, 0));
2275
2276 return const_;
2277 }
2278
sljit_emit_put_label(struct sljit_compiler * compiler,sljit_s32 dst,sljit_sw dstw)2279 SLJIT_API_FUNC_ATTRIBUTE struct sljit_put_label* sljit_emit_put_label(struct sljit_compiler *compiler, sljit_s32 dst, sljit_sw dstw)
2280 {
2281 struct sljit_put_label *put_label;
2282 sljit_s32 dst_r;
2283
2284 CHECK_ERROR_PTR();
2285 CHECK_PTR(check_sljit_emit_put_label(compiler, dst, dstw));
2286 ADJUST_LOCAL_OFFSET(dst, dstw);
2287
2288 put_label = (struct sljit_put_label*)ensure_abuf(compiler, sizeof(struct sljit_put_label));
2289 PTR_FAIL_IF(!put_label);
2290 set_put_label(put_label, compiler, 0);
2291
2292 dst_r = FAST_IS_REG(dst) ? dst : TMP_REG2;
2293 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
2294 PTR_FAIL_IF(emit_const(compiler, dst_r, 0));
2295 #else
2296 PTR_FAIL_IF(push_inst(compiler, dst_r, UNMOVABLE_INS));
2297 compiler->size += 5;
2298 #endif
2299
2300 if (dst & SLJIT_MEM)
2301 PTR_FAIL_IF(emit_op(compiler, SLJIT_MOV, WORD_DATA, dst, dstw, TMP_REG1, 0, TMP_REG2, 0));
2302
2303 return put_label;
2304 }
2305
