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 compiler->status_flags_state = SLJIT_CURRENT_FLAGS_ADD_SUB;
1381 return emit_op(compiler, SLJIT_SUB | GET_ALL_FLAGS(op), flags | IMM_OP, dst, dstw, SLJIT_IMM, 0, src, srcw);
1382
1383 case SLJIT_CLZ:
1384 return emit_op(compiler, op, flags, dst, dstw, TMP_REG1, 0, src, srcw);
1385 }
1386
1387 SLJIT_UNREACHABLE();
1388 return SLJIT_SUCCESS;
1389
1390 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
1391 # undef flags
1392 #endif
1393 }
1394
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)1395 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_op2(struct sljit_compiler *compiler, sljit_s32 op,
1396 sljit_s32 dst, sljit_sw dstw,
1397 sljit_s32 src1, sljit_sw src1w,
1398 sljit_s32 src2, sljit_sw src2w)
1399 {
1400 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
1401 # define flags 0
1402 #else
1403 sljit_s32 flags = 0;
1404 #endif
1405
1406 CHECK_ERROR();
1407 CHECK(check_sljit_emit_op2(compiler, op, dst, dstw, src1, src1w, src2, src2w));
1408 ADJUST_LOCAL_OFFSET(dst, dstw);
1409 ADJUST_LOCAL_OFFSET(src1, src1w);
1410 ADJUST_LOCAL_OFFSET(src2, src2w);
1411
1412 if (dst == SLJIT_UNUSED && !HAS_FLAGS(op))
1413 return SLJIT_SUCCESS;
1414
1415 #if (defined SLJIT_CONFIG_MIPS_64 && SLJIT_CONFIG_MIPS_64)
1416 if (op & SLJIT_I32_OP) {
1417 flags |= INT_DATA | SIGNED_DATA;
1418 if (src1 & SLJIT_IMM)
1419 src1w = (sljit_s32)src1w;
1420 if (src2 & SLJIT_IMM)
1421 src2w = (sljit_s32)src2w;
1422 }
1423 #endif
1424
1425 switch (GET_OPCODE(op)) {
1426 case SLJIT_ADD:
1427 case SLJIT_ADDC:
1428 compiler->status_flags_state = SLJIT_CURRENT_FLAGS_ADD_SUB;
1429 return emit_op(compiler, op, flags | CUMULATIVE_OP | IMM_OP, dst, dstw, src1, src1w, src2, src2w);
1430
1431 case SLJIT_SUB:
1432 case SLJIT_SUBC:
1433 compiler->status_flags_state = SLJIT_CURRENT_FLAGS_ADD_SUB;
1434 return emit_op(compiler, op, flags | IMM_OP, dst, dstw, src1, src1w, src2, src2w);
1435
1436 case SLJIT_MUL:
1437 compiler->status_flags_state = 0;
1438 return emit_op(compiler, op, flags | CUMULATIVE_OP, dst, dstw, src1, src1w, src2, src2w);
1439
1440 case SLJIT_AND:
1441 case SLJIT_OR:
1442 case SLJIT_XOR:
1443 return emit_op(compiler, op, flags | CUMULATIVE_OP | LOGICAL_OP | IMM_OP, dst, dstw, src1, src1w, src2, src2w);
1444
1445 case SLJIT_SHL:
1446 case SLJIT_LSHR:
1447 case SLJIT_ASHR:
1448 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
1449 if (src2 & SLJIT_IMM)
1450 src2w &= 0x1f;
1451 #else
1452 if (src2 & SLJIT_IMM) {
1453 if (op & SLJIT_I32_OP)
1454 src2w &= 0x1f;
1455 else
1456 src2w &= 0x3f;
1457 }
1458 #endif
1459 return emit_op(compiler, op, flags | IMM_OP, dst, dstw, src1, src1w, src2, src2w);
1460 }
1461
1462 SLJIT_UNREACHABLE();
1463 return SLJIT_SUCCESS;
1464
1465 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
1466 # undef flags
1467 #endif
1468 }
1469
sljit_emit_op_src(struct sljit_compiler * compiler,sljit_s32 op,sljit_s32 src,sljit_sw srcw)1470 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_op_src(struct sljit_compiler *compiler, sljit_s32 op,
1471 sljit_s32 src, sljit_sw srcw)
1472 {
1473 CHECK_ERROR();
1474 CHECK(check_sljit_emit_op_src(compiler, op, src, srcw));
1475 ADJUST_LOCAL_OFFSET(src, srcw);
1476
1477 switch (op) {
1478 case SLJIT_FAST_RETURN:
1479 if (FAST_IS_REG(src))
1480 FAIL_IF(push_inst(compiler, ADDU_W | S(src) | TA(0) | DA(RETURN_ADDR_REG), RETURN_ADDR_REG));
1481 else
1482 FAIL_IF(emit_op_mem(compiler, WORD_DATA | LOAD_DATA, RETURN_ADDR_REG, src, srcw));
1483
1484 FAIL_IF(push_inst(compiler, JR | SA(RETURN_ADDR_REG), UNMOVABLE_INS));
1485 return push_inst(compiler, NOP, UNMOVABLE_INS);
1486 case SLJIT_SKIP_FRAMES_BEFORE_FAST_RETURN:
1487 return SLJIT_SUCCESS;
1488 case SLJIT_PREFETCH_L1:
1489 case SLJIT_PREFETCH_L2:
1490 case SLJIT_PREFETCH_L3:
1491 case SLJIT_PREFETCH_ONCE:
1492 #if (defined SLJIT_MIPS_REV && SLJIT_MIPS_REV >= 1)
1493 return emit_prefetch(compiler, src, srcw);
1494 #else /* SLJIT_MIPS_REV < 1 */
1495 return SLJIT_SUCCESS;
1496 #endif /* SLJIT_MIPS_REV >= 1 */
1497 }
1498
1499 return SLJIT_SUCCESS;
1500 }
1501
sljit_get_register_index(sljit_s32 reg)1502 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_get_register_index(sljit_s32 reg)
1503 {
1504 CHECK_REG_INDEX(check_sljit_get_register_index(reg));
1505 return reg_map[reg];
1506 }
1507
sljit_get_float_register_index(sljit_s32 reg)1508 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_get_float_register_index(sljit_s32 reg)
1509 {
1510 CHECK_REG_INDEX(check_sljit_get_float_register_index(reg));
1511 return FR(reg);
1512 }
1513
sljit_emit_op_custom(struct sljit_compiler * compiler,void * instruction,sljit_s32 size)1514 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_op_custom(struct sljit_compiler *compiler,
1515 void *instruction, sljit_s32 size)
1516 {
1517 CHECK_ERROR();
1518 CHECK(check_sljit_emit_op_custom(compiler, instruction, size));
1519
1520 return push_inst(compiler, *(sljit_ins*)instruction, UNMOVABLE_INS);
1521 }
1522
1523 /* --------------------------------------------------------------------- */
1524 /* Floating point operators */
1525 /* --------------------------------------------------------------------- */
1526
1527 #define FLOAT_DATA(op) (DOUBLE_DATA | ((op & SLJIT_F32_OP) >> 7))
1528 #define FMT(op) (((op & SLJIT_F32_OP) ^ SLJIT_F32_OP) << (21 - 8))
1529
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)1530 static SLJIT_INLINE sljit_s32 sljit_emit_fop1_conv_sw_from_f64(struct sljit_compiler *compiler, sljit_s32 op,
1531 sljit_s32 dst, sljit_sw dstw,
1532 sljit_s32 src, sljit_sw srcw)
1533 {
1534 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
1535 # define flags 0
1536 #else
1537 sljit_s32 flags = (GET_OPCODE(op) == SLJIT_CONV_SW_FROM_F64) << 21;
1538 #endif
1539
1540 if (src & SLJIT_MEM) {
1541 FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op) | LOAD_DATA, FR(TMP_FREG1), src, srcw, dst, dstw));
1542 src = TMP_FREG1;
1543 }
1544
1545 FAIL_IF(push_inst(compiler, (TRUNC_W_S ^ (flags >> 19)) | FMT(op) | FS(src) | FD(TMP_FREG1), MOVABLE_INS));
1546
1547 if (FAST_IS_REG(dst))
1548 return push_inst(compiler, MFC1 | flags | T(dst) | FS(TMP_FREG1), MOVABLE_INS);
1549
1550 /* Store the integer value from a VFP register. */
1551 return emit_op_mem2(compiler, flags ? DOUBLE_DATA : SINGLE_DATA, FR(TMP_FREG1), dst, dstw, 0, 0);
1552
1553 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
1554 # undef is_long
1555 #endif
1556 }
1557
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)1558 static SLJIT_INLINE sljit_s32 sljit_emit_fop1_conv_f64_from_sw(struct sljit_compiler *compiler, sljit_s32 op,
1559 sljit_s32 dst, sljit_sw dstw,
1560 sljit_s32 src, sljit_sw srcw)
1561 {
1562 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
1563 # define flags 0
1564 #else
1565 sljit_s32 flags = (GET_OPCODE(op) == SLJIT_CONV_F64_FROM_SW) << 21;
1566 #endif
1567
1568 sljit_s32 dst_r = FAST_IS_REG(dst) ? dst : TMP_FREG1;
1569
1570 if (FAST_IS_REG(src))
1571 FAIL_IF(push_inst(compiler, MTC1 | flags | T(src) | FS(TMP_FREG1), MOVABLE_INS));
1572 else if (src & SLJIT_MEM) {
1573 /* Load the integer value into a VFP register. */
1574 FAIL_IF(emit_op_mem2(compiler, ((flags) ? DOUBLE_DATA : SINGLE_DATA) | LOAD_DATA, FR(TMP_FREG1), src, srcw, dst, dstw));
1575 }
1576 else {
1577 #if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64)
1578 if (GET_OPCODE(op) == SLJIT_CONV_F64_FROM_S32)
1579 srcw = (sljit_s32)srcw;
1580 #endif
1581 FAIL_IF(load_immediate(compiler, DR(TMP_REG1), srcw));
1582 FAIL_IF(push_inst(compiler, MTC1 | flags | T(TMP_REG1) | FS(TMP_FREG1), MOVABLE_INS));
1583 }
1584
1585 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));
1586
1587 if (dst & SLJIT_MEM)
1588 return emit_op_mem2(compiler, FLOAT_DATA(op), FR(TMP_FREG1), dst, dstw, 0, 0);
1589 return SLJIT_SUCCESS;
1590
1591 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
1592 # undef flags
1593 #endif
1594 }
1595
sljit_emit_fop1_cmp(struct sljit_compiler * compiler,sljit_s32 op,sljit_s32 src1,sljit_sw src1w,sljit_s32 src2,sljit_sw src2w)1596 static SLJIT_INLINE sljit_s32 sljit_emit_fop1_cmp(struct sljit_compiler *compiler, sljit_s32 op,
1597 sljit_s32 src1, sljit_sw src1w,
1598 sljit_s32 src2, sljit_sw src2w)
1599 {
1600 sljit_ins inst;
1601
1602 if (src1 & SLJIT_MEM) {
1603 FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op) | LOAD_DATA, FR(TMP_FREG1), src1, src1w, src2, src2w));
1604 src1 = TMP_FREG1;
1605 }
1606
1607 if (src2 & SLJIT_MEM) {
1608 FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op) | LOAD_DATA, FR(TMP_FREG2), src2, src2w, 0, 0));
1609 src2 = TMP_FREG2;
1610 }
1611
1612 switch (GET_FLAG_TYPE(op)) {
1613 case SLJIT_EQUAL_F64:
1614 case SLJIT_NOT_EQUAL_F64:
1615 inst = C_UEQ_S;
1616 break;
1617 case SLJIT_LESS_F64:
1618 case SLJIT_GREATER_EQUAL_F64:
1619 inst = C_ULT_S;
1620 break;
1621 case SLJIT_GREATER_F64:
1622 case SLJIT_LESS_EQUAL_F64:
1623 inst = C_ULE_S;
1624 break;
1625 default:
1626 SLJIT_ASSERT(GET_FLAG_TYPE(op) == SLJIT_UNORDERED_F64 || GET_FLAG_TYPE(op) == SLJIT_ORDERED_F64);
1627 inst = C_UN_S;
1628 break;
1629 }
1630 return push_inst(compiler, inst | FMT(op) | FT(src2) | FS(src1) | C_FD, UNMOVABLE_INS);
1631 }
1632
sljit_emit_fop1(struct sljit_compiler * compiler,sljit_s32 op,sljit_s32 dst,sljit_sw dstw,sljit_s32 src,sljit_sw srcw)1633 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_fop1(struct sljit_compiler *compiler, sljit_s32 op,
1634 sljit_s32 dst, sljit_sw dstw,
1635 sljit_s32 src, sljit_sw srcw)
1636 {
1637 sljit_s32 dst_r;
1638
1639 CHECK_ERROR();
1640 compiler->cache_arg = 0;
1641 compiler->cache_argw = 0;
1642
1643 SLJIT_COMPILE_ASSERT((SLJIT_F32_OP == 0x100) && !(DOUBLE_DATA & 0x2), float_transfer_bit_error);
1644 SELECT_FOP1_OPERATION_WITH_CHECKS(compiler, op, dst, dstw, src, srcw);
1645
1646 if (GET_OPCODE(op) == SLJIT_CONV_F64_FROM_F32)
1647 op ^= SLJIT_F32_OP;
1648
1649 dst_r = FAST_IS_REG(dst) ? dst : TMP_FREG1;
1650
1651 if (src & SLJIT_MEM) {
1652 FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op) | LOAD_DATA, FR(dst_r), src, srcw, dst, dstw));
1653 src = dst_r;
1654 }
1655
1656 switch (GET_OPCODE(op)) {
1657 case SLJIT_MOV_F64:
1658 if (src != dst_r) {
1659 if (dst_r != TMP_FREG1)
1660 FAIL_IF(push_inst(compiler, MOV_S | FMT(op) | FS(src) | FD(dst_r), MOVABLE_INS));
1661 else
1662 dst_r = src;
1663 }
1664 break;
1665 case SLJIT_NEG_F64:
1666 FAIL_IF(push_inst(compiler, NEG_S | FMT(op) | FS(src) | FD(dst_r), MOVABLE_INS));
1667 break;
1668 case SLJIT_ABS_F64:
1669 FAIL_IF(push_inst(compiler, ABS_S | FMT(op) | FS(src) | FD(dst_r), MOVABLE_INS));
1670 break;
1671 case SLJIT_CONV_F64_FROM_F32:
1672 FAIL_IF(push_inst(compiler, CVT_S_S | ((op & SLJIT_F32_OP) ? 1 : (1 << 21)) | FS(src) | FD(dst_r), MOVABLE_INS));
1673 op ^= SLJIT_F32_OP;
1674 break;
1675 }
1676
1677 if (dst & SLJIT_MEM)
1678 return emit_op_mem2(compiler, FLOAT_DATA(op), FR(dst_r), dst, dstw, 0, 0);
1679 return SLJIT_SUCCESS;
1680 }
1681
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)1682 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_fop2(struct sljit_compiler *compiler, sljit_s32 op,
1683 sljit_s32 dst, sljit_sw dstw,
1684 sljit_s32 src1, sljit_sw src1w,
1685 sljit_s32 src2, sljit_sw src2w)
1686 {
1687 sljit_s32 dst_r, flags = 0;
1688
1689 CHECK_ERROR();
1690 CHECK(check_sljit_emit_fop2(compiler, op, dst, dstw, src1, src1w, src2, src2w));
1691 ADJUST_LOCAL_OFFSET(dst, dstw);
1692 ADJUST_LOCAL_OFFSET(src1, src1w);
1693 ADJUST_LOCAL_OFFSET(src2, src2w);
1694
1695 compiler->cache_arg = 0;
1696 compiler->cache_argw = 0;
1697
1698 dst_r = FAST_IS_REG(dst) ? dst : TMP_FREG2;
1699
1700 if (src1 & SLJIT_MEM) {
1701 if (getput_arg_fast(compiler, FLOAT_DATA(op) | LOAD_DATA, FR(TMP_FREG1), src1, src1w)) {
1702 FAIL_IF(compiler->error);
1703 src1 = TMP_FREG1;
1704 } else
1705 flags |= SLOW_SRC1;
1706 }
1707
1708 if (src2 & SLJIT_MEM) {
1709 if (getput_arg_fast(compiler, FLOAT_DATA(op) | LOAD_DATA, FR(TMP_FREG2), src2, src2w)) {
1710 FAIL_IF(compiler->error);
1711 src2 = TMP_FREG2;
1712 } else
1713 flags |= SLOW_SRC2;
1714 }
1715
1716 if ((flags & (SLOW_SRC1 | SLOW_SRC2)) == (SLOW_SRC1 | SLOW_SRC2)) {
1717 if (!can_cache(src1, src1w, src2, src2w) && can_cache(src1, src1w, dst, dstw)) {
1718 FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, FR(TMP_FREG2), src2, src2w, src1, src1w));
1719 FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, FR(TMP_FREG1), src1, src1w, dst, dstw));
1720 }
1721 else {
1722 FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, FR(TMP_FREG1), src1, src1w, src2, src2w));
1723 FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, FR(TMP_FREG2), src2, src2w, dst, dstw));
1724 }
1725 }
1726 else if (flags & SLOW_SRC1)
1727 FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, FR(TMP_FREG1), src1, src1w, dst, dstw));
1728 else if (flags & SLOW_SRC2)
1729 FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, FR(TMP_FREG2), src2, src2w, dst, dstw));
1730
1731 if (flags & SLOW_SRC1)
1732 src1 = TMP_FREG1;
1733 if (flags & SLOW_SRC2)
1734 src2 = TMP_FREG2;
1735
1736 switch (GET_OPCODE(op)) {
1737 case SLJIT_ADD_F64:
1738 FAIL_IF(push_inst(compiler, ADD_S | FMT(op) | FT(src2) | FS(src1) | FD(dst_r), MOVABLE_INS));
1739 break;
1740
1741 case SLJIT_SUB_F64:
1742 FAIL_IF(push_inst(compiler, SUB_S | FMT(op) | FT(src2) | FS(src1) | FD(dst_r), MOVABLE_INS));
1743 break;
1744
1745 case SLJIT_MUL_F64:
1746 FAIL_IF(push_inst(compiler, MUL_S | FMT(op) | FT(src2) | FS(src1) | FD(dst_r), MOVABLE_INS));
1747 break;
1748
1749 case SLJIT_DIV_F64:
1750 FAIL_IF(push_inst(compiler, DIV_S | FMT(op) | FT(src2) | FS(src1) | FD(dst_r), MOVABLE_INS));
1751 break;
1752 }
1753
1754 if (dst_r == TMP_FREG2)
1755 FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op), FR(TMP_FREG2), dst, dstw, 0, 0));
1756
1757 return SLJIT_SUCCESS;
1758 }
1759
1760 /* --------------------------------------------------------------------- */
1761 /* Other instructions */
1762 /* --------------------------------------------------------------------- */
1763
sljit_emit_fast_enter(struct sljit_compiler * compiler,sljit_s32 dst,sljit_sw dstw)1764 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_fast_enter(struct sljit_compiler *compiler, sljit_s32 dst, sljit_sw dstw)
1765 {
1766 CHECK_ERROR();
1767 CHECK(check_sljit_emit_fast_enter(compiler, dst, dstw));
1768 ADJUST_LOCAL_OFFSET(dst, dstw);
1769
1770 if (FAST_IS_REG(dst))
1771 return push_inst(compiler, ADDU_W | SA(RETURN_ADDR_REG) | TA(0) | D(dst), UNMOVABLE_INS);
1772
1773 /* Memory. */
1774 FAIL_IF(emit_op_mem(compiler, WORD_DATA, RETURN_ADDR_REG, dst, dstw));
1775 compiler->delay_slot = UNMOVABLE_INS;
1776 return SLJIT_SUCCESS;
1777 }
1778
1779 /* --------------------------------------------------------------------- */
1780 /* Conditional instructions */
1781 /* --------------------------------------------------------------------- */
1782
sljit_emit_label(struct sljit_compiler * compiler)1783 SLJIT_API_FUNC_ATTRIBUTE struct sljit_label* sljit_emit_label(struct sljit_compiler *compiler)
1784 {
1785 struct sljit_label *label;
1786
1787 CHECK_ERROR_PTR();
1788 CHECK_PTR(check_sljit_emit_label(compiler));
1789
1790 if (compiler->last_label && compiler->last_label->size == compiler->size)
1791 return compiler->last_label;
1792
1793 label = (struct sljit_label*)ensure_abuf(compiler, sizeof(struct sljit_label));
1794 PTR_FAIL_IF(!label);
1795 set_label(label, compiler);
1796 compiler->delay_slot = UNMOVABLE_INS;
1797 return label;
1798 }
1799
1800 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
1801 #define JUMP_LENGTH 4
1802 #else
1803 #define JUMP_LENGTH 8
1804 #endif
1805
1806 #define BR_Z(src) \
1807 inst = BEQ | SA(src) | TA(0) | JUMP_LENGTH; \
1808 flags = IS_BIT26_COND; \
1809 delay_check = src;
1810
1811 #define BR_NZ(src) \
1812 inst = BNE | SA(src) | TA(0) | JUMP_LENGTH; \
1813 flags = IS_BIT26_COND; \
1814 delay_check = src;
1815
1816 #if (defined SLJIT_MIPS_REV && SLJIT_MIPS_REV >= 6)
1817
1818 #define BR_T() \
1819 inst = BC1NEZ; \
1820 flags = IS_BIT23_COND; \
1821 delay_check = FCSR_FCC;
1822 #define BR_F() \
1823 inst = BC1EQZ; \
1824 flags = IS_BIT23_COND; \
1825 delay_check = FCSR_FCC;
1826
1827 #else /* SLJIT_MIPS_REV < 6 */
1828
1829 #define BR_T() \
1830 inst = BC1T | JUMP_LENGTH; \
1831 flags = IS_BIT16_COND; \
1832 delay_check = FCSR_FCC;
1833 #define BR_F() \
1834 inst = BC1F | JUMP_LENGTH; \
1835 flags = IS_BIT16_COND; \
1836 delay_check = FCSR_FCC;
1837
1838 #endif /* SLJIT_MIPS_REV >= 6 */
1839
sljit_emit_jump(struct sljit_compiler * compiler,sljit_s32 type)1840 SLJIT_API_FUNC_ATTRIBUTE struct sljit_jump* sljit_emit_jump(struct sljit_compiler *compiler, sljit_s32 type)
1841 {
1842 struct sljit_jump *jump;
1843 sljit_ins inst;
1844 sljit_s32 flags = 0;
1845 sljit_s32 delay_check = UNMOVABLE_INS;
1846
1847 CHECK_ERROR_PTR();
1848 CHECK_PTR(check_sljit_emit_jump(compiler, type));
1849
1850 jump = (struct sljit_jump*)ensure_abuf(compiler, sizeof(struct sljit_jump));
1851 PTR_FAIL_IF(!jump);
1852 set_jump(jump, compiler, type & SLJIT_REWRITABLE_JUMP);
1853 type &= 0xff;
1854
1855 switch (type) {
1856 case SLJIT_EQUAL:
1857 BR_NZ(EQUAL_FLAG);
1858 break;
1859 case SLJIT_NOT_EQUAL:
1860 BR_Z(EQUAL_FLAG);
1861 break;
1862 case SLJIT_LESS:
1863 case SLJIT_GREATER:
1864 case SLJIT_SIG_LESS:
1865 case SLJIT_SIG_GREATER:
1866 case SLJIT_OVERFLOW:
1867 BR_Z(OTHER_FLAG);
1868 break;
1869 case SLJIT_GREATER_EQUAL:
1870 case SLJIT_LESS_EQUAL:
1871 case SLJIT_SIG_GREATER_EQUAL:
1872 case SLJIT_SIG_LESS_EQUAL:
1873 case SLJIT_NOT_OVERFLOW:
1874 BR_NZ(OTHER_FLAG);
1875 break;
1876 case SLJIT_NOT_EQUAL_F64:
1877 case SLJIT_GREATER_EQUAL_F64:
1878 case SLJIT_GREATER_F64:
1879 case SLJIT_ORDERED_F64:
1880 BR_T();
1881 break;
1882 case SLJIT_EQUAL_F64:
1883 case SLJIT_LESS_F64:
1884 case SLJIT_LESS_EQUAL_F64:
1885 case SLJIT_UNORDERED_F64:
1886 BR_F();
1887 break;
1888 default:
1889 /* Not conditional branch. */
1890 inst = 0;
1891 break;
1892 }
1893
1894 jump->flags |= flags;
1895 if (compiler->delay_slot == MOVABLE_INS || (compiler->delay_slot != UNMOVABLE_INS && compiler->delay_slot != delay_check))
1896 jump->flags |= IS_MOVABLE;
1897
1898 if (inst)
1899 PTR_FAIL_IF(push_inst(compiler, inst, UNMOVABLE_INS));
1900
1901 PTR_FAIL_IF(emit_const(compiler, TMP_REG2, 0));
1902
1903 if (type <= SLJIT_JUMP)
1904 PTR_FAIL_IF(push_inst(compiler, JR | S(TMP_REG2), UNMOVABLE_INS));
1905 else {
1906 jump->flags |= IS_JAL;
1907 PTR_FAIL_IF(push_inst(compiler, JALR | S(TMP_REG2) | DA(RETURN_ADDR_REG), UNMOVABLE_INS));
1908 }
1909
1910 jump->addr = compiler->size;
1911 PTR_FAIL_IF(push_inst(compiler, NOP, UNMOVABLE_INS));
1912 return jump;
1913 }
1914
1915 #define RESOLVE_IMM1() \
1916 if (src1 & SLJIT_IMM) { \
1917 if (src1w) { \
1918 PTR_FAIL_IF(load_immediate(compiler, DR(TMP_REG1), src1w)); \
1919 src1 = TMP_REG1; \
1920 } \
1921 else \
1922 src1 = 0; \
1923 }
1924
1925 #define RESOLVE_IMM2() \
1926 if (src2 & SLJIT_IMM) { \
1927 if (src2w) { \
1928 PTR_FAIL_IF(load_immediate(compiler, DR(TMP_REG2), src2w)); \
1929 src2 = TMP_REG2; \
1930 } \
1931 else \
1932 src2 = 0; \
1933 }
1934
sljit_emit_cmp(struct sljit_compiler * compiler,sljit_s32 type,sljit_s32 src1,sljit_sw src1w,sljit_s32 src2,sljit_sw src2w)1935 SLJIT_API_FUNC_ATTRIBUTE struct sljit_jump* sljit_emit_cmp(struct sljit_compiler *compiler, sljit_s32 type,
1936 sljit_s32 src1, sljit_sw src1w,
1937 sljit_s32 src2, sljit_sw src2w)
1938 {
1939 struct sljit_jump *jump;
1940 sljit_s32 flags;
1941 sljit_ins inst;
1942
1943 CHECK_ERROR_PTR();
1944 CHECK_PTR(check_sljit_emit_cmp(compiler, type, src1, src1w, src2, src2w));
1945 ADJUST_LOCAL_OFFSET(src1, src1w);
1946 ADJUST_LOCAL_OFFSET(src2, src2w);
1947
1948 compiler->cache_arg = 0;
1949 compiler->cache_argw = 0;
1950 flags = ((type & SLJIT_I32_OP) ? INT_DATA : WORD_DATA) | LOAD_DATA;
1951 if (src1 & SLJIT_MEM) {
1952 PTR_FAIL_IF(emit_op_mem2(compiler, flags, DR(TMP_REG1), src1, src1w, src2, src2w));
1953 src1 = TMP_REG1;
1954 }
1955 if (src2 & SLJIT_MEM) {
1956 PTR_FAIL_IF(emit_op_mem2(compiler, flags, DR(TMP_REG2), src2, src2w, 0, 0));
1957 src2 = TMP_REG2;
1958 }
1959
1960 jump = (struct sljit_jump*)ensure_abuf(compiler, sizeof(struct sljit_jump));
1961 PTR_FAIL_IF(!jump);
1962 set_jump(jump, compiler, type & SLJIT_REWRITABLE_JUMP);
1963 type &= 0xff;
1964
1965 if (type <= SLJIT_NOT_EQUAL) {
1966 RESOLVE_IMM1();
1967 RESOLVE_IMM2();
1968 jump->flags |= IS_BIT26_COND;
1969 if (compiler->delay_slot == MOVABLE_INS || (compiler->delay_slot != UNMOVABLE_INS && compiler->delay_slot != DR(src1) && compiler->delay_slot != DR(src2)))
1970 jump->flags |= IS_MOVABLE;
1971 PTR_FAIL_IF(push_inst(compiler, (type == SLJIT_EQUAL ? BNE : BEQ) | S(src1) | T(src2) | JUMP_LENGTH, UNMOVABLE_INS));
1972 }
1973 else if (type >= SLJIT_SIG_LESS && (((src1 & SLJIT_IMM) && (src1w == 0)) || ((src2 & SLJIT_IMM) && (src2w == 0)))) {
1974 inst = NOP;
1975 if ((src1 & SLJIT_IMM) && (src1w == 0)) {
1976 RESOLVE_IMM2();
1977 switch (type) {
1978 case SLJIT_SIG_LESS:
1979 inst = BLEZ;
1980 jump->flags |= IS_BIT26_COND;
1981 break;
1982 case SLJIT_SIG_GREATER_EQUAL:
1983 inst = BGTZ;
1984 jump->flags |= IS_BIT26_COND;
1985 break;
1986 case SLJIT_SIG_GREATER:
1987 inst = BGEZ;
1988 jump->flags |= IS_BIT16_COND;
1989 break;
1990 case SLJIT_SIG_LESS_EQUAL:
1991 inst = BLTZ;
1992 jump->flags |= IS_BIT16_COND;
1993 break;
1994 }
1995 src1 = src2;
1996 }
1997 else {
1998 RESOLVE_IMM1();
1999 switch (type) {
2000 case SLJIT_SIG_LESS:
2001 inst = BGEZ;
2002 jump->flags |= IS_BIT16_COND;
2003 break;
2004 case SLJIT_SIG_GREATER_EQUAL:
2005 inst = BLTZ;
2006 jump->flags |= IS_BIT16_COND;
2007 break;
2008 case SLJIT_SIG_GREATER:
2009 inst = BLEZ;
2010 jump->flags |= IS_BIT26_COND;
2011 break;
2012 case SLJIT_SIG_LESS_EQUAL:
2013 inst = BGTZ;
2014 jump->flags |= IS_BIT26_COND;
2015 break;
2016 }
2017 }
2018 PTR_FAIL_IF(push_inst(compiler, inst | S(src1) | JUMP_LENGTH, UNMOVABLE_INS));
2019 }
2020 else {
2021 if (type == SLJIT_LESS || type == SLJIT_GREATER_EQUAL || type == SLJIT_SIG_LESS || type == SLJIT_SIG_GREATER_EQUAL) {
2022 RESOLVE_IMM1();
2023 if ((src2 & SLJIT_IMM) && src2w <= SIMM_MAX && src2w >= SIMM_MIN)
2024 PTR_FAIL_IF(push_inst(compiler, (type <= SLJIT_LESS_EQUAL ? SLTIU : SLTI) | S(src1) | T(TMP_REG1) | IMM(src2w), DR(TMP_REG1)));
2025 else {
2026 RESOLVE_IMM2();
2027 PTR_FAIL_IF(push_inst(compiler, (type <= SLJIT_LESS_EQUAL ? SLTU : SLT) | S(src1) | T(src2) | D(TMP_REG1), DR(TMP_REG1)));
2028 }
2029 type = (type == SLJIT_LESS || type == SLJIT_SIG_LESS) ? SLJIT_NOT_EQUAL : SLJIT_EQUAL;
2030 }
2031 else {
2032 RESOLVE_IMM2();
2033 if ((src1 & SLJIT_IMM) && src1w <= SIMM_MAX && src1w >= SIMM_MIN)
2034 PTR_FAIL_IF(push_inst(compiler, (type <= SLJIT_LESS_EQUAL ? SLTIU : SLTI) | S(src2) | T(TMP_REG1) | IMM(src1w), DR(TMP_REG1)));
2035 else {
2036 RESOLVE_IMM1();
2037 PTR_FAIL_IF(push_inst(compiler, (type <= SLJIT_LESS_EQUAL ? SLTU : SLT) | S(src2) | T(src1) | D(TMP_REG1), DR(TMP_REG1)));
2038 }
2039 type = (type == SLJIT_GREATER || type == SLJIT_SIG_GREATER) ? SLJIT_NOT_EQUAL : SLJIT_EQUAL;
2040 }
2041
2042 jump->flags |= IS_BIT26_COND;
2043 PTR_FAIL_IF(push_inst(compiler, (type == SLJIT_EQUAL ? BNE : BEQ) | S(TMP_REG1) | TA(0) | JUMP_LENGTH, UNMOVABLE_INS));
2044 }
2045
2046 PTR_FAIL_IF(emit_const(compiler, TMP_REG2, 0));
2047 PTR_FAIL_IF(push_inst(compiler, JR | S(TMP_REG2), UNMOVABLE_INS));
2048 jump->addr = compiler->size;
2049 PTR_FAIL_IF(push_inst(compiler, NOP, UNMOVABLE_INS));
2050 return jump;
2051 }
2052
2053 #undef RESOLVE_IMM1
2054 #undef RESOLVE_IMM2
2055
2056 #undef JUMP_LENGTH
2057 #undef BR_Z
2058 #undef BR_NZ
2059 #undef BR_T
2060 #undef BR_F
2061
2062 #undef FLOAT_DATA
2063 #undef FMT
2064
sljit_emit_ijump(struct sljit_compiler * compiler,sljit_s32 type,sljit_s32 src,sljit_sw srcw)2065 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_ijump(struct sljit_compiler *compiler, sljit_s32 type, sljit_s32 src, sljit_sw srcw)
2066 {
2067 struct sljit_jump *jump = NULL;
2068
2069 CHECK_ERROR();
2070 CHECK(check_sljit_emit_ijump(compiler, type, src, srcw));
2071 ADJUST_LOCAL_OFFSET(src, srcw);
2072
2073 if (src & SLJIT_IMM) {
2074 jump = (struct sljit_jump*)ensure_abuf(compiler, sizeof(struct sljit_jump));
2075 FAIL_IF(!jump);
2076 set_jump(jump, compiler, JUMP_ADDR | ((type >= SLJIT_FAST_CALL) ? IS_JAL : 0));
2077 jump->u.target = srcw;
2078
2079 if (compiler->delay_slot != UNMOVABLE_INS)
2080 jump->flags |= IS_MOVABLE;
2081
2082 FAIL_IF(emit_const(compiler, TMP_REG2, 0));
2083 src = TMP_REG2;
2084 }
2085 else if (src & SLJIT_MEM) {
2086 FAIL_IF(emit_op_mem(compiler, WORD_DATA | LOAD_DATA, DR(TMP_REG2), src, srcw));
2087 src = TMP_REG2;
2088 }
2089
2090 FAIL_IF(push_inst(compiler, JR | S(src), UNMOVABLE_INS));
2091 if (jump)
2092 jump->addr = compiler->size;
2093 FAIL_IF(push_inst(compiler, NOP, UNMOVABLE_INS));
2094 return SLJIT_SUCCESS;
2095 }
2096
sljit_emit_op_flags(struct sljit_compiler * compiler,sljit_s32 op,sljit_s32 dst,sljit_sw dstw,sljit_s32 type)2097 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_op_flags(struct sljit_compiler *compiler, sljit_s32 op,
2098 sljit_s32 dst, sljit_sw dstw,
2099 sljit_s32 type)
2100 {
2101 sljit_s32 src_ar, dst_ar;
2102 sljit_s32 saved_op = op;
2103 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
2104 sljit_s32 mem_type = WORD_DATA;
2105 #else
2106 sljit_s32 mem_type = (op & SLJIT_I32_OP) ? (INT_DATA | SIGNED_DATA) : WORD_DATA;
2107 #endif
2108
2109 CHECK_ERROR();
2110 CHECK(check_sljit_emit_op_flags(compiler, op, dst, dstw, type));
2111 ADJUST_LOCAL_OFFSET(dst, dstw);
2112
2113 op = GET_OPCODE(op);
2114 #if (defined SLJIT_CONFIG_MIPS_64 && SLJIT_CONFIG_MIPS_64)
2115 if (op == SLJIT_MOV_S32)
2116 mem_type = INT_DATA | SIGNED_DATA;
2117 #endif
2118 dst_ar = DR((op < SLJIT_ADD && FAST_IS_REG(dst)) ? dst : TMP_REG2);
2119
2120 compiler->cache_arg = 0;
2121 compiler->cache_argw = 0;
2122
2123 if (op >= SLJIT_ADD && (dst & SLJIT_MEM))
2124 FAIL_IF(emit_op_mem2(compiler, mem_type | LOAD_DATA, DR(TMP_REG1), dst, dstw, dst, dstw));
2125
2126 switch (type & 0xff) {
2127 case SLJIT_EQUAL:
2128 case SLJIT_NOT_EQUAL:
2129 FAIL_IF(push_inst(compiler, SLTIU | SA(EQUAL_FLAG) | TA(dst_ar) | IMM(1), dst_ar));
2130 src_ar = dst_ar;
2131 break;
2132 case SLJIT_OVERFLOW:
2133 case SLJIT_NOT_OVERFLOW:
2134 if (compiler->status_flags_state & SLJIT_CURRENT_FLAGS_ADD_SUB) {
2135 src_ar = OTHER_FLAG;
2136 break;
2137 }
2138 FAIL_IF(push_inst(compiler, SLTIU | SA(OTHER_FLAG) | TA(dst_ar) | IMM(1), dst_ar));
2139 src_ar = dst_ar;
2140 type ^= 0x1; /* Flip type bit for the XORI below. */
2141 break;
2142 case SLJIT_GREATER_F64:
2143 case SLJIT_LESS_EQUAL_F64:
2144 type ^= 0x1; /* Flip type bit for the XORI below. */
2145 case SLJIT_EQUAL_F64:
2146 case SLJIT_NOT_EQUAL_F64:
2147 case SLJIT_LESS_F64:
2148 case SLJIT_GREATER_EQUAL_F64:
2149 case SLJIT_UNORDERED_F64:
2150 case SLJIT_ORDERED_F64:
2151 #if (defined SLJIT_MIPS_REV && SLJIT_MIPS_REV >= 6)
2152 FAIL_IF(push_inst(compiler, MFC1 | TA(dst_ar) | FS(TMP_FREG3), dst_ar));
2153 #else /* SLJIT_MIPS_REV < 6 */
2154 FAIL_IF(push_inst(compiler, CFC1 | TA(dst_ar) | DA(FCSR_REG), dst_ar));
2155 #endif /* SLJIT_MIPS_REV >= 6 */
2156 FAIL_IF(push_inst(compiler, SRL | TA(dst_ar) | DA(dst_ar) | SH_IMM(23), dst_ar));
2157 FAIL_IF(push_inst(compiler, ANDI | SA(dst_ar) | TA(dst_ar) | IMM(1), dst_ar));
2158 src_ar = dst_ar;
2159 break;
2160
2161 default:
2162 src_ar = OTHER_FLAG;
2163 break;
2164 }
2165
2166 if (type & 0x1) {
2167 FAIL_IF(push_inst(compiler, XORI | SA(src_ar) | TA(dst_ar) | IMM(1), dst_ar));
2168 src_ar = dst_ar;
2169 }
2170
2171 if (op < SLJIT_ADD) {
2172 if (dst & SLJIT_MEM)
2173 return emit_op_mem(compiler, mem_type, src_ar, dst, dstw);
2174
2175 if (src_ar != dst_ar)
2176 return push_inst(compiler, ADDU_W | SA(src_ar) | TA(0) | DA(dst_ar), dst_ar);
2177 return SLJIT_SUCCESS;
2178 }
2179
2180 /* OTHER_FLAG cannot be specified as src2 argument at the moment. */
2181 if (DR(TMP_REG2) != src_ar)
2182 FAIL_IF(push_inst(compiler, ADDU_W | SA(src_ar) | TA(0) | D(TMP_REG2), DR(TMP_REG2)));
2183
2184 mem_type |= CUMULATIVE_OP | LOGICAL_OP | IMM_OP | ALT_KEEP_CACHE;
2185
2186 if (dst & SLJIT_MEM)
2187 return emit_op(compiler, saved_op, mem_type, dst, dstw, TMP_REG1, 0, TMP_REG2, 0);
2188 return emit_op(compiler, saved_op, mem_type, dst, dstw, dst, dstw, TMP_REG2, 0);
2189 }
2190
sljit_emit_cmov(struct sljit_compiler * compiler,sljit_s32 type,sljit_s32 dst_reg,sljit_s32 src,sljit_sw srcw)2191 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_cmov(struct sljit_compiler *compiler, sljit_s32 type,
2192 sljit_s32 dst_reg,
2193 sljit_s32 src, sljit_sw srcw)
2194 {
2195 #if (defined SLJIT_MIPS_REV && SLJIT_MIPS_REV >= 1 && SLJIT_MIPS_REV < 6)
2196 sljit_ins ins;
2197 #endif /* SLJIT_MIPS_REV >= 1 && SLJIT_MIPS_REV < 6 */
2198
2199 CHECK_ERROR();
2200 CHECK(check_sljit_emit_cmov(compiler, type, dst_reg, src, srcw));
2201
2202 #if (defined SLJIT_MIPS_REV && SLJIT_MIPS_REV >= 1 && SLJIT_MIPS_REV < 6)
2203
2204 if (SLJIT_UNLIKELY(src & SLJIT_IMM)) {
2205 #if (defined SLJIT_CONFIG_MIPS_64 && SLJIT_CONFIG_MIPS_64)
2206 if (dst_reg & SLJIT_I32_OP)
2207 srcw = (sljit_s32)srcw;
2208 #endif
2209 FAIL_IF(load_immediate(compiler, DR(TMP_REG1), srcw));
2210 src = TMP_REG1;
2211 srcw = 0;
2212 }
2213
2214 dst_reg &= ~SLJIT_I32_OP;
2215
2216 switch (type & 0xff) {
2217 case SLJIT_EQUAL:
2218 ins = MOVZ | TA(EQUAL_FLAG);
2219 break;
2220 case SLJIT_NOT_EQUAL:
2221 ins = MOVN | TA(EQUAL_FLAG);
2222 break;
2223 case SLJIT_LESS:
2224 case SLJIT_GREATER:
2225 case SLJIT_SIG_LESS:
2226 case SLJIT_SIG_GREATER:
2227 case SLJIT_OVERFLOW:
2228 ins = MOVN | TA(OTHER_FLAG);
2229 break;
2230 case SLJIT_GREATER_EQUAL:
2231 case SLJIT_LESS_EQUAL:
2232 case SLJIT_SIG_GREATER_EQUAL:
2233 case SLJIT_SIG_LESS_EQUAL:
2234 case SLJIT_NOT_OVERFLOW:
2235 ins = MOVZ | TA(OTHER_FLAG);
2236 break;
2237 case SLJIT_EQUAL_F64:
2238 case SLJIT_LESS_F64:
2239 case SLJIT_LESS_EQUAL_F64:
2240 case SLJIT_UNORDERED_F64:
2241 ins = MOVT;
2242 break;
2243 case SLJIT_NOT_EQUAL_F64:
2244 case SLJIT_GREATER_EQUAL_F64:
2245 case SLJIT_GREATER_F64:
2246 case SLJIT_ORDERED_F64:
2247 ins = MOVF;
2248 break;
2249 default:
2250 ins = MOVZ | TA(OTHER_FLAG);
2251 SLJIT_UNREACHABLE();
2252 break;
2253 }
2254
2255 return push_inst(compiler, ins | S(src) | D(dst_reg), DR(dst_reg));
2256
2257 #else /* SLJIT_MIPS_REV < 1 || SLJIT_MIPS_REV >= 6 */
2258 return sljit_emit_cmov_generic(compiler, type, dst_reg, src, srcw);
2259 #endif /* SLJIT_MIPS_REV >= 1 */
2260 }
2261
sljit_emit_const(struct sljit_compiler * compiler,sljit_s32 dst,sljit_sw dstw,sljit_sw init_value)2262 SLJIT_API_FUNC_ATTRIBUTE struct sljit_const* sljit_emit_const(struct sljit_compiler *compiler, sljit_s32 dst, sljit_sw dstw, sljit_sw init_value)
2263 {
2264 struct sljit_const *const_;
2265 sljit_s32 dst_r;
2266
2267 CHECK_ERROR_PTR();
2268 CHECK_PTR(check_sljit_emit_const(compiler, dst, dstw, init_value));
2269 ADJUST_LOCAL_OFFSET(dst, dstw);
2270
2271 const_ = (struct sljit_const*)ensure_abuf(compiler, sizeof(struct sljit_const));
2272 PTR_FAIL_IF(!const_);
2273 set_const(const_, compiler);
2274
2275 dst_r = FAST_IS_REG(dst) ? dst : TMP_REG2;
2276 PTR_FAIL_IF(emit_const(compiler, dst_r, init_value));
2277
2278 if (dst & SLJIT_MEM)
2279 PTR_FAIL_IF(emit_op(compiler, SLJIT_MOV, WORD_DATA, dst, dstw, TMP_REG1, 0, TMP_REG2, 0));
2280
2281 return const_;
2282 }
2283
sljit_emit_put_label(struct sljit_compiler * compiler,sljit_s32 dst,sljit_sw dstw)2284 SLJIT_API_FUNC_ATTRIBUTE struct sljit_put_label* sljit_emit_put_label(struct sljit_compiler *compiler, sljit_s32 dst, sljit_sw dstw)
2285 {
2286 struct sljit_put_label *put_label;
2287 sljit_s32 dst_r;
2288
2289 CHECK_ERROR_PTR();
2290 CHECK_PTR(check_sljit_emit_put_label(compiler, dst, dstw));
2291 ADJUST_LOCAL_OFFSET(dst, dstw);
2292
2293 put_label = (struct sljit_put_label*)ensure_abuf(compiler, sizeof(struct sljit_put_label));
2294 PTR_FAIL_IF(!put_label);
2295 set_put_label(put_label, compiler, 0);
2296
2297 dst_r = FAST_IS_REG(dst) ? dst : TMP_REG2;
2298 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
2299 PTR_FAIL_IF(emit_const(compiler, dst_r, 0));
2300 #else
2301 PTR_FAIL_IF(push_inst(compiler, dst_r, UNMOVABLE_INS));
2302 compiler->size += 5;
2303 #endif
2304
2305 if (dst & SLJIT_MEM)
2306 PTR_FAIL_IF(emit_op(compiler, SLJIT_MOV, WORD_DATA, dst, dstw, TMP_REG1, 0, TMP_REG2, 0));
2307
2308 return put_label;
2309 }
2310
