/[pcre]/code/trunk/sljit/sljitNativePPC_common.c
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Contents of /code/trunk/sljit/sljitNativePPC_common.c

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Revision 884 - (show annotations) (download)
Tue Jan 17 11:52:43 2012 UTC (2 years, 9 months ago) by zherczeg
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JIT test prints cpu info
1 /*
2 * Stack-less Just-In-Time compiler
3 *
4 * Copyright 2009-2012 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 SLJIT_API_FUNC_ATTRIBUTE SLJIT_CONST char* sljit_get_platform_name()
28 {
29 return "PowerPC" SLJIT_CPUINFO;
30 }
31
32 /* Length of an instruction word.
33 Both for ppc-32 and ppc-64. */
34 typedef sljit_ui sljit_ins;
35
36 static void ppc_cache_flush(sljit_ins *from, sljit_ins *to)
37 {
38 while (from < to) {
39 #ifdef __GNUC__
40 asm volatile ( "icbi 0, %0" : : "r"(from) );
41 #else
42 #error "Must implement icbi"
43 #endif
44 from++;
45 }
46 }
47
48 #define TMP_REG1 (SLJIT_NO_REGISTERS + 1)
49 #define TMP_REG2 (SLJIT_NO_REGISTERS + 2)
50 #define TMP_REG3 (SLJIT_NO_REGISTERS + 3)
51 #define ZERO_REG (SLJIT_NO_REGISTERS + 4)
52 #define REAL_STACK_PTR (SLJIT_NO_REGISTERS + 5)
53
54 #define TMP_FREG1 (SLJIT_FLOAT_REG4 + 1)
55 #define TMP_FREG2 (SLJIT_FLOAT_REG4 + 2)
56
57 /* --------------------------------------------------------------------- */
58 /* Instrucion forms */
59 /* --------------------------------------------------------------------- */
60 #define D(d) (reg_map[d] << 21)
61 #define S(s) (reg_map[s] << 21)
62 #define A(a) (reg_map[a] << 16)
63 #define B(b) (reg_map[b] << 11)
64 #define C(c) (reg_map[c] << 6)
65 #define FD(fd) ((fd) << 21)
66 #define FA(fa) ((fa) << 16)
67 #define FB(fb) ((fb) << 11)
68 #define FC(fc) ((fc) << 6)
69 #define IMM(imm) ((imm) & 0xffff)
70 #define CRD(d) ((d) << 21)
71
72 /* Instruction bit sections.
73 OE and Rc flag (see ALT_SET_FLAGS). */
74 #define OERC(flags) (((flags & ALT_SET_FLAGS) >> 10) | (flags & ALT_SET_FLAGS))
75 /* Rc flag (see ALT_SET_FLAGS). */
76 #define RC(flags) ((flags & ALT_SET_FLAGS) >> 10)
77 #define HI(opcode) ((opcode) << 26)
78 #define LO(opcode) ((opcode) << 1)
79
80 #define ADD (HI(31) | LO(266))
81 #define ADDC (HI(31) | LO(10))
82 #define ADDE (HI(31) | LO(138))
83 #define ADDI (HI(14))
84 #define ADDIC (HI(13))
85 #define ADDIS (HI(15))
86 #define ADDME (HI(31) | LO(234))
87 #define AND (HI(31) | LO(28))
88 #define ANDI (HI(28))
89 #define ANDIS (HI(29))
90 #define Bx (HI(18))
91 #define BCx (HI(16))
92 #define BCCTR (HI(19) | LO(528) | (3 << 11))
93 #define BLR (HI(19) | LO(16) | (0x14 << 21))
94 #define CNTLZD (HI(31) | LO(58))
95 #define CNTLZW (HI(31) | LO(26))
96 #define CMP (HI(31) | LO(0))
97 #define CMPI (HI(11))
98 #define CMPL (HI(31) | LO(32))
99 #define CMPLI (HI(10))
100 #define CROR (HI(19) | LO(449))
101 #define DIVD (HI(31) | LO(489))
102 #define DIVDU (HI(31) | LO(457))
103 #define DIVW (HI(31) | LO(491))
104 #define DIVWU (HI(31) | LO(459))
105 #define EXTSB (HI(31) | LO(954))
106 #define EXTSH (HI(31) | LO(922))
107 #define EXTSW (HI(31) | LO(986))
108 #define FABS (HI(63) | LO(264))
109 #define FADD (HI(63) | LO(21))
110 #define FCMPU (HI(63) | LO(0))
111 #define FDIV (HI(63) | LO(18))
112 #define FMR (HI(63) | LO(72))
113 #define FMUL (HI(63) | LO(25))
114 #define FNEG (HI(63) | LO(40))
115 #define FSUB (HI(63) | LO(20))
116 #define LD (HI(58) | 0)
117 #define LFD (HI(50))
118 #define LFDUX (HI(31) | LO(631))
119 #define LFDX (HI(31) | LO(599))
120 #define LWZ (HI(32))
121 #define MFCR (HI(31) | LO(19))
122 #define MFLR (HI(31) | LO(339) | 0x80000)
123 #define MFXER (HI(31) | LO(339) | 0x10000)
124 #define MTCTR (HI(31) | LO(467) | 0x90000)
125 #define MTLR (HI(31) | LO(467) | 0x80000)
126 #define MTXER (HI(31) | LO(467) | 0x10000)
127 #define MULHD (HI(31) | LO(73))
128 #define MULHDU (HI(31) | LO(9))
129 #define MULHW (HI(31) | LO(75))
130 #define MULHWU (HI(31) | LO(11))
131 #define MULLD (HI(31) | LO(233))
132 #define MULLI (HI(7))
133 #define MULLW (HI(31) | LO(235))
134 #define NEG (HI(31) | LO(104))
135 #define NOP (HI(24))
136 #define NOR (HI(31) | LO(124))
137 #define OR (HI(31) | LO(444))
138 #define ORI (HI(24))
139 #define ORIS (HI(25))
140 #define RLDICL (HI(30))
141 #define RLWINM (HI(21))
142 #define SLD (HI(31) | LO(27))
143 #define SLW (HI(31) | LO(24))
144 #define SRAD (HI(31) | LO(794))
145 #define SRADI (HI(31) | LO(413 << 1))
146 #define SRAW (HI(31) | LO(792))
147 #define SRAWI (HI(31) | LO(824))
148 #define SRD (HI(31) | LO(539))
149 #define SRW (HI(31) | LO(536))
150 #define STD (HI(62) | 0)
151 #define STDU (HI(62) | 1)
152 #define STDUX (HI(31) | LO(181))
153 #define STFD (HI(54))
154 #define STFDUX (HI(31) | LO(759))
155 #define STFDX (HI(31) | LO(727))
156 #define STW (HI(36))
157 #define STWU (HI(37))
158 #define STWUX (HI(31) | LO(183))
159 #define SUBF (HI(31) | LO(40))
160 #define SUBFC (HI(31) | LO(8))
161 #define SUBFE (HI(31) | LO(136))
162 #define SUBFIC (HI(8))
163 #define XOR (HI(31) | LO(316))
164 #define XORI (HI(26))
165 #define XORIS (HI(27))
166
167 #define SIMM_MAX (0x7fff)
168 #define SIMM_MIN (-0x8000)
169 #define UIMM_MAX (0xffff)
170
171 /* SLJIT_LOCALS_REG is not the real stack register, since it must
172 point to the head of the stack chain. */
173 static SLJIT_CONST sljit_ub reg_map[SLJIT_NO_REGISTERS + 6] = {
174 0, 3, 4, 5, 6, 7, 29, 28, 27, 26, 25, 31, 8, 9, 10, 30, 1
175 };
176
177 static int push_inst(struct sljit_compiler *compiler, sljit_ins ins)
178 {
179 sljit_ins *ptr = (sljit_ins*)ensure_buf(compiler, sizeof(sljit_ins));
180 FAIL_IF(!ptr);
181 *ptr = ins;
182 compiler->size++;
183 return SLJIT_SUCCESS;
184 }
185
186 static SLJIT_INLINE int optimize_jump(struct sljit_jump *jump, sljit_ins *code_ptr, sljit_ins *code)
187 {
188 sljit_w diff;
189 sljit_uw target_addr;
190
191 if (jump->flags & SLJIT_REWRITABLE_JUMP)
192 return 0;
193
194 if (jump->flags & JUMP_ADDR)
195 target_addr = jump->u.target;
196 else {
197 SLJIT_ASSERT(jump->flags & JUMP_LABEL);
198 target_addr = (sljit_uw)(code + jump->u.label->size);
199 }
200 diff = ((sljit_w)target_addr - (sljit_w)(code_ptr)) & ~0x3l;
201
202 if (jump->flags & UNCOND_B) {
203 if (diff <= 0x01ffffff && diff >= -0x02000000) {
204 jump->flags |= PATCH_B;
205 return 1;
206 }
207 if (target_addr <= 0x03ffffff) {
208 jump->flags |= PATCH_B | ABSOLUTE_B;
209 return 1;
210 }
211 }
212 else {
213 if (diff <= 0x7fff && diff >= -0x8000) {
214 jump->flags |= PATCH_B;
215 return 1;
216 }
217 if (target_addr <= 0xffff) {
218 jump->flags |= PATCH_B | ABSOLUTE_B;
219 return 1;
220 }
221 }
222 return 0;
223 }
224
225 SLJIT_API_FUNC_ATTRIBUTE void* sljit_generate_code(struct sljit_compiler *compiler)
226 {
227 struct sljit_memory_fragment *buf;
228 sljit_ins *code;
229 sljit_ins *code_ptr;
230 sljit_ins *buf_ptr;
231 sljit_ins *buf_end;
232 sljit_uw word_count;
233 sljit_uw addr;
234
235 struct sljit_label *label;
236 struct sljit_jump *jump;
237 struct sljit_const *const_;
238
239 CHECK_ERROR_PTR();
240 check_sljit_generate_code(compiler);
241 reverse_buf(compiler);
242
243 #if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
244 compiler->size += (compiler->size & 0x1) + (sizeof(struct sljit_function_context) / sizeof(sljit_ins));
245 #endif
246 code = (sljit_ins*)SLJIT_MALLOC_EXEC(compiler->size * sizeof(sljit_ins));
247 PTR_FAIL_WITH_EXEC_IF(code);
248 buf = compiler->buf;
249
250 code_ptr = code;
251 word_count = 0;
252 label = compiler->labels;
253 jump = compiler->jumps;
254 const_ = compiler->consts;
255 do {
256 buf_ptr = (sljit_ins*)buf->memory;
257 buf_end = buf_ptr + (buf->used_size >> 2);
258 do {
259 *code_ptr = *buf_ptr++;
260 SLJIT_ASSERT(!label || label->size >= word_count);
261 SLJIT_ASSERT(!jump || jump->addr >= word_count);
262 SLJIT_ASSERT(!const_ || const_->addr >= word_count);
263 /* These structures are ordered by their address. */
264 if (label && label->size == word_count) {
265 /* Just recording the address. */
266 label->addr = (sljit_uw)code_ptr;
267 label->size = code_ptr - code;
268 label = label->next;
269 }
270 if (jump && jump->addr == word_count) {
271 #if (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32)
272 jump->addr = (sljit_uw)(code_ptr - 3);
273 #else
274 jump->addr = (sljit_uw)(code_ptr - 6);
275 #endif
276 if (optimize_jump(jump, code_ptr, code)) {
277 #if (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32)
278 code_ptr[-3] = code_ptr[0];
279 code_ptr -= 3;
280 #else
281 code_ptr[-6] = code_ptr[0];
282 code_ptr -= 6;
283 #endif
284 }
285 jump = jump->next;
286 }
287 if (const_ && const_->addr == word_count) {
288 /* Just recording the address. */
289 const_->addr = (sljit_uw)code_ptr;
290 const_ = const_->next;
291 }
292 code_ptr ++;
293 word_count ++;
294 } while (buf_ptr < buf_end);
295
296 buf = buf->next;
297 } while (buf);
298
299 if (label && label->size == word_count) {
300 label->addr = (sljit_uw)code_ptr;
301 label->size = code_ptr - code;
302 label = label->next;
303 }
304
305 SLJIT_ASSERT(!label);
306 SLJIT_ASSERT(!jump);
307 SLJIT_ASSERT(!const_);
308 #if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
309 SLJIT_ASSERT(code_ptr - code <= (int)compiler->size - ((compiler->size & 0x1) ? 3 : 2));
310 #else
311 SLJIT_ASSERT(code_ptr - code <= (int)compiler->size);
312 #endif
313
314 jump = compiler->jumps;
315 while (jump) {
316 do {
317 addr = (jump->flags & JUMP_LABEL) ? jump->u.label->addr : jump->u.target;
318 buf_ptr = (sljit_ins*)jump->addr;
319 if (jump->flags & PATCH_B) {
320 if (jump->flags & UNCOND_B) {
321 if (!(jump->flags & ABSOLUTE_B)) {
322 addr = addr - jump->addr;
323 SLJIT_ASSERT((sljit_w)addr <= 0x01ffffff && (sljit_w)addr >= -0x02000000);
324 *buf_ptr = Bx | (addr & 0x03fffffc) | ((*buf_ptr) & 0x1);
325 }
326 else {
327 SLJIT_ASSERT(addr <= 0x03ffffff);
328 *buf_ptr = Bx | (addr & 0x03fffffc) | 0x2 | ((*buf_ptr) & 0x1);
329 }
330 }
331 else {
332 if (!(jump->flags & ABSOLUTE_B)) {
333 addr = addr - jump->addr;
334 SLJIT_ASSERT((sljit_w)addr <= 0x7fff && (sljit_w)addr >= -0x8000);
335 *buf_ptr = BCx | (addr & 0xfffc) | ((*buf_ptr) & 0x03ff0001);
336 }
337 else {
338 addr = addr & ~0x3l;
339 SLJIT_ASSERT(addr <= 0xffff);
340 *buf_ptr = BCx | (addr & 0xfffc) | 0x2 | ((*buf_ptr) & 0x03ff0001);
341 }
342
343 }
344 break;
345 }
346 /* Set the fields of immediate loads. */
347 #if (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32)
348 buf_ptr[0] = (buf_ptr[0] & 0xffff0000) | ((addr >> 16) & 0xffff);
349 buf_ptr[1] = (buf_ptr[1] & 0xffff0000) | (addr & 0xffff);
350 #else
351 buf_ptr[0] = (buf_ptr[0] & 0xffff0000) | ((addr >> 48) & 0xffff);
352 buf_ptr[1] = (buf_ptr[1] & 0xffff0000) | ((addr >> 32) & 0xffff);
353 buf_ptr[3] = (buf_ptr[3] & 0xffff0000) | ((addr >> 16) & 0xffff);
354 buf_ptr[4] = (buf_ptr[4] & 0xffff0000) | (addr & 0xffff);
355 #endif
356 } while (0);
357 jump = jump->next;
358 }
359
360 SLJIT_CACHE_FLUSH(code, code_ptr);
361 compiler->error = SLJIT_ERR_COMPILED;
362 compiler->executable_size = compiler->size * sizeof(sljit_ins);
363
364 #if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
365 if (((sljit_w)code_ptr) & 0x4)
366 code_ptr++;
367 sljit_set_function_context(NULL, (struct sljit_function_context*)code_ptr, (sljit_w)code, sljit_generate_code);
368 return code_ptr;
369 #else
370 return code;
371 #endif
372 }
373
374 /* inp_flags: */
375
376 /* Creates an index in data_transfer_insts array. */
377 #define WORD_DATA 0x00
378 #define BYTE_DATA 0x01
379 #define HALF_DATA 0x02
380 #define INT_DATA 0x03
381 #define SIGNED_DATA 0x04
382 #define LOAD_DATA 0x08
383 #define WRITE_BACK 0x10
384 #define INDEXED 0x20
385
386 #define MEM_MASK 0x3f
387
388 /* Other inp_flags. */
389
390 #define ARG_TEST 0x000100
391 /* Integer opertion and set flags -> requires exts on 64 bit systems. */
392 #define ALT_SIGN_EXT 0x000200
393 /* This flag affects the RC() and OERC() macros. */
394 #define ALT_SET_FLAGS 0x000400
395 #define ALT_FORM1 0x010000
396 #define ALT_FORM2 0x020000
397 #define ALT_FORM3 0x040000
398 #define ALT_FORM4 0x080000
399 #define ALT_FORM5 0x100000
400 #define ALT_FORM6 0x200000
401
402 /* Source and destination is register. */
403 #define REG_DEST 0x000001
404 #define REG1_SOURCE 0x000002
405 #define REG2_SOURCE 0x000004
406 /* getput_arg_fast returned true. */
407 #define FAST_DEST 0x000008
408 /* Multiple instructions are required. */
409 #define SLOW_DEST 0x000010
410 /*
411 ALT_SIGN_EXT 0x000200
412 ALT_SET_FLAGS 0x000400
413 ALT_FORM1 0x010000
414 ...
415 ALT_FORM6 0x200000 */
416
417 #if (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32)
418 #include "sljitNativePPC_32.c"
419 #else
420 #include "sljitNativePPC_64.c"
421 #endif
422
423 #if (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32)
424 #define STACK_STORE STW
425 #define STACK_LOAD LWZ
426 #else
427 #define STACK_STORE STD
428 #define STACK_LOAD LD
429 #endif
430
431 static int emit_op(struct sljit_compiler *compiler, int op, int inp_flags,
432 int dst, sljit_w dstw,
433 int src1, sljit_w src1w,
434 int src2, sljit_w src2w);
435
436 SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_enter(struct sljit_compiler *compiler, int args, int temporaries, int saveds, int local_size)
437 {
438 CHECK_ERROR();
439 check_sljit_emit_enter(compiler, args, temporaries, saveds, local_size);
440
441 compiler->temporaries = temporaries;
442 compiler->saveds = saveds;
443 compiler->has_locals = local_size > 0;
444
445 FAIL_IF(push_inst(compiler, MFLR | D(0)));
446 if (compiler->has_locals)
447 FAIL_IF(push_inst(compiler, STACK_STORE | S(SLJIT_LOCALS_REG) | A(REAL_STACK_PTR) | IMM(-(int)(sizeof(sljit_w))) ));
448 FAIL_IF(push_inst(compiler, STACK_STORE | S(ZERO_REG) | A(REAL_STACK_PTR) | IMM(-2 * (int)(sizeof(sljit_w))) ));
449 if (saveds >= 1)
450 FAIL_IF(push_inst(compiler, STACK_STORE | S(SLJIT_SAVED_REG1) | A(REAL_STACK_PTR) | IMM(-3 * (int)(sizeof(sljit_w))) ));
451 if (saveds >= 2)
452 FAIL_IF(push_inst(compiler, STACK_STORE | S(SLJIT_SAVED_REG2) | A(REAL_STACK_PTR) | IMM(-4 * (int)(sizeof(sljit_w))) ));
453 if (saveds >= 3)
454 FAIL_IF(push_inst(compiler, STACK_STORE | S(SLJIT_SAVED_REG3) | A(REAL_STACK_PTR) | IMM(-5 * (int)(sizeof(sljit_w))) ));
455 if (saveds >= 4)
456 FAIL_IF(push_inst(compiler, STACK_STORE | S(SLJIT_SAVED_EREG1) | A(REAL_STACK_PTR) | IMM(-6 * (int)(sizeof(sljit_w))) ));
457 if (saveds >= 5)
458 FAIL_IF(push_inst(compiler, STACK_STORE | S(SLJIT_SAVED_EREG2) | A(REAL_STACK_PTR) | IMM(-7 * (int)(sizeof(sljit_w))) ));
459 FAIL_IF(push_inst(compiler, STACK_STORE | S(0) | A(REAL_STACK_PTR) | IMM(sizeof(sljit_w)) ));
460
461 FAIL_IF(push_inst(compiler, ADDI | D(ZERO_REG) | A(0) | 0));
462 if (args >= 1)
463 FAIL_IF(push_inst(compiler, OR | S(SLJIT_TEMPORARY_REG1) | A(SLJIT_SAVED_REG1) | B(SLJIT_TEMPORARY_REG1)));
464 if (args >= 2)
465 FAIL_IF(push_inst(compiler, OR | S(SLJIT_TEMPORARY_REG2) | A(SLJIT_SAVED_REG2) | B(SLJIT_TEMPORARY_REG2)));
466 if (args >= 3)
467 FAIL_IF(push_inst(compiler, OR | S(SLJIT_TEMPORARY_REG3) | A(SLJIT_SAVED_REG3) | B(SLJIT_TEMPORARY_REG3)));
468
469 #if (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32)
470 compiler->local_size = (2 + saveds + 2) * sizeof(sljit_w) + local_size;
471 #else
472 compiler->local_size = (2 + saveds + 7 + 8) * sizeof(sljit_w) + local_size;
473 #endif
474 compiler->local_size = (compiler->local_size + 15) & ~0xf;
475
476 #if (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32)
477 if (compiler->local_size <= SIMM_MAX)
478 FAIL_IF(push_inst(compiler, STWU | S(REAL_STACK_PTR) | A(REAL_STACK_PTR) | IMM(-compiler->local_size)));
479 else {
480 FAIL_IF(load_immediate(compiler, 0, -compiler->local_size));
481 FAIL_IF(push_inst(compiler, STWUX | S(REAL_STACK_PTR) | A(REAL_STACK_PTR) | B(0)));
482 }
483 if (compiler->has_locals)
484 FAIL_IF(push_inst(compiler, ADDI | D(SLJIT_LOCALS_REG) | A(REAL_STACK_PTR) | IMM(2 * sizeof(sljit_w))));
485 #else
486 if (compiler->local_size <= SIMM_MAX)
487 FAIL_IF(push_inst(compiler, STDU | S(REAL_STACK_PTR) | A(REAL_STACK_PTR) | IMM(-compiler->local_size)));
488 else {
489 FAIL_IF(load_immediate(compiler, 0, -compiler->local_size));
490 FAIL_IF(push_inst(compiler, STDUX | S(REAL_STACK_PTR) | A(REAL_STACK_PTR) | B(0)));
491 }
492 if (compiler->has_locals)
493 FAIL_IF(push_inst(compiler, ADDI | D(SLJIT_LOCALS_REG) | A(REAL_STACK_PTR) | IMM((7 + 8) * sizeof(sljit_w))));
494 #endif
495
496 return SLJIT_SUCCESS;
497 }
498
499 SLJIT_API_FUNC_ATTRIBUTE void sljit_set_context(struct sljit_compiler *compiler, int args, int temporaries, int saveds, int local_size)
500 {
501 CHECK_ERROR_VOID();
502 check_sljit_set_context(compiler, args, temporaries, saveds, local_size);
503
504 compiler->temporaries = temporaries;
505 compiler->saveds = saveds;
506
507 compiler->has_locals = local_size > 0;
508 #if (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32)
509 compiler->local_size = (2 + saveds + 2) * sizeof(sljit_w) + local_size;
510 #else
511 compiler->local_size = (2 + saveds + 7 + 8) * sizeof(sljit_w) + local_size;
512 #endif
513 compiler->local_size = (compiler->local_size + 15) & ~0xf;
514 }
515
516 SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_return(struct sljit_compiler *compiler, int op, int src, sljit_w srcw)
517 {
518 CHECK_ERROR();
519 check_sljit_emit_return(compiler, op, src, srcw);
520
521 FAIL_IF(emit_mov_before_return(compiler, op, src, srcw));
522
523 if (compiler->local_size <= SIMM_MAX)
524 FAIL_IF(push_inst(compiler, ADDI | D(REAL_STACK_PTR) | A(REAL_STACK_PTR) | IMM(compiler->local_size)));
525 else {
526 FAIL_IF(load_immediate(compiler, 0, compiler->local_size));
527 FAIL_IF(push_inst(compiler, ADD | D(REAL_STACK_PTR) | A(REAL_STACK_PTR) | B(0)));
528 }
529
530 FAIL_IF(push_inst(compiler, STACK_LOAD | D(0) | A(REAL_STACK_PTR) | IMM(sizeof(sljit_w))));
531 if (compiler->saveds >= 5)
532 FAIL_IF(push_inst(compiler, STACK_LOAD | D(SLJIT_SAVED_EREG2) | A(REAL_STACK_PTR) | IMM(-7 * (int)(sizeof(sljit_w))) ));
533 if (compiler->saveds >= 4)
534 FAIL_IF(push_inst(compiler, STACK_LOAD | D(SLJIT_SAVED_EREG1) | A(REAL_STACK_PTR) | IMM(-6 * (int)(sizeof(sljit_w))) ));
535 if (compiler->saveds >= 3)
536 FAIL_IF(push_inst(compiler, STACK_LOAD | D(SLJIT_SAVED_REG3) | A(REAL_STACK_PTR) | IMM(-5 * (int)(sizeof(sljit_w))) ));
537 if (compiler->saveds >= 2)
538 FAIL_IF(push_inst(compiler, STACK_LOAD | D(SLJIT_SAVED_REG2) | A(REAL_STACK_PTR) | IMM(-4 * (int)(sizeof(sljit_w))) ));
539 if (compiler->saveds >= 1)
540 FAIL_IF(push_inst(compiler, STACK_LOAD | D(SLJIT_SAVED_REG1) | A(REAL_STACK_PTR) | IMM(-3 * (int)(sizeof(sljit_w))) ));
541 FAIL_IF(push_inst(compiler, STACK_LOAD | D(ZERO_REG) | A(REAL_STACK_PTR) | IMM(-2 * (int)(sizeof(sljit_w))) ));
542 if (compiler->has_locals)
543 FAIL_IF(push_inst(compiler, STACK_LOAD | D(SLJIT_LOCALS_REG) | A(REAL_STACK_PTR) | IMM(-(int)(sizeof(sljit_w))) ));
544
545 FAIL_IF(push_inst(compiler, MTLR | S(0)));
546 FAIL_IF(push_inst(compiler, BLR));
547
548 return SLJIT_SUCCESS;
549 }
550
551 #undef STACK_STORE
552 #undef STACK_LOAD
553
554 /* --------------------------------------------------------------------- */
555 /* Operators */
556 /* --------------------------------------------------------------------- */
557
558 /* i/x - immediate/indexed form
559 n/w - no write-back / write-back (1 bit)
560 s/l - store/load (1 bit)
561 u/s - signed/unsigned (1 bit)
562 w/b/h/i - word/byte/half/int allowed (2 bit)
563 It contans 32 items, but not all are different. */
564
565 /* 64 bit only: [reg+imm] must be aligned to 4 bytes. */
566 #define ADDR_MODE2 0x10000
567 /* 64-bit only: there is no lwau instruction. */
568 #define UPDATE_REQ 0x20000
569
570 #if (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32)
571 #define ARCH_DEPEND(a, b) a
572 #define GET_INST_CODE(inst) (inst)
573 #else
574 #define ARCH_DEPEND(a, b) b
575 #define GET_INST_CODE(index) ((inst) & ~(ADDR_MODE2 | UPDATE_REQ))
576 #endif
577
578 static SLJIT_CONST sljit_ins data_transfer_insts[64] = {
579
580 /* No write-back. */
581
582 /* i n s u w */ ARCH_DEPEND(HI(36) /* stw */, HI(62) | ADDR_MODE2 | 0x0 /* std */),
583 /* i n s u b */ HI(38) /* stb */,
584 /* i n s u h */ HI(44) /* sth*/,
585 /* i n s u i */ HI(36) /* stw */,
586
587 /* i n s s w */ ARCH_DEPEND(HI(36) /* stw */, HI(62) | ADDR_MODE2 | 0x0 /* std */),
588 /* i n s s b */ HI(38) /* stb */,
589 /* i n s s h */ HI(44) /* sth*/,
590 /* i n s s i */ HI(36) /* stw */,
591
592 /* i n l u w */ ARCH_DEPEND(HI(32) /* lwz */, HI(58) | ADDR_MODE2 | 0x0 /* ld */),
593 /* i n l u b */ HI(34) /* lbz */,
594 /* i n l u h */ HI(40) /* lhz */,
595 /* i n l u i */ HI(32) /* lwz */,
596
597 /* i n l s w */ ARCH_DEPEND(HI(32) /* lwz */, HI(58) | ADDR_MODE2 | 0x0 /* ld */),
598 /* i n l s b */ HI(34) /* lbz */ /* EXTS_REQ */,
599 /* i n l s h */ HI(42) /* lha */,
600 /* i n l s i */ ARCH_DEPEND(HI(32) /* lwz */, HI(58) | ADDR_MODE2 | 0x2 /* lwa */),
601
602 /* Write-back. */
603
604 /* i w s u w */ ARCH_DEPEND(HI(37) /* stwu */, HI(62) | ADDR_MODE2 | 0x1 /* stdu */),
605 /* i w s u b */ HI(39) /* stbu */,
606 /* i w s u h */ HI(45) /* sthu */,
607 /* i w s u i */ HI(37) /* stwu */,
608
609 /* i w s s w */ ARCH_DEPEND(HI(37) /* stwu */, HI(62) | ADDR_MODE2 | 0x1 /* stdu */),
610 /* i w s s b */ HI(39) /* stbu */,
611 /* i w s s h */ HI(45) /* sthu */,
612 /* i w s s i */ HI(37) /* stwu */,
613
614 /* i w l u w */ ARCH_DEPEND(HI(33) /* lwzu */, HI(58) | ADDR_MODE2 | 0x1 /* ldu */),
615 /* i w l u b */ HI(35) /* lbzu */,
616 /* i w l u h */ HI(41) /* lhzu */,
617 /* i w l u i */ HI(33) /* lwzu */,
618
619 /* i w l s w */ ARCH_DEPEND(HI(33) /* lwzu */, HI(58) | ADDR_MODE2 | 0x1 /* ldu */),
620 /* i w l s b */ HI(35) /* lbzu */ /* EXTS_REQ */,
621 /* i w l s h */ HI(43) /* lhau */,
622 /* i w l s i */ ARCH_DEPEND(HI(33) /* lwzu */, HI(58) | ADDR_MODE2 | UPDATE_REQ | 0x2 /* lwa */),
623
624 /* ---------- */
625 /* Indexed */
626 /* ---------- */
627
628 /* No write-back. */
629
630 /* x n s u w */ ARCH_DEPEND(HI(31) | LO(151) /* stwx */, HI(31) | LO(149) /* stdx */),
631 /* x n s u b */ HI(31) | LO(215) /* stbx */,
632 /* x n s u h */ HI(31) | LO(407) /* sthx */,
633 /* x n s u i */ HI(31) | LO(151) /* stwx */,
634
635 /* x n s s w */ ARCH_DEPEND(HI(31) | LO(151) /* stwx */, HI(31) | LO(149) /* stdx */),
636 /* x n s s b */ HI(31) | LO(215) /* stbx */,
637 /* x n s s h */ HI(31) | LO(407) /* sthx */,
638 /* x n s s i */ HI(31) | LO(151) /* stwx */,
639
640 /* x n l u w */ ARCH_DEPEND(HI(31) | LO(23) /* lwzx */, HI(31) | LO(21) /* ldx */),
641 /* x n l u b */ HI(31) | LO(87) /* lbzx */,
642 /* x n l u h */ HI(31) | LO(279) /* lhzx */,
643 /* x n l u i */ HI(31) | LO(23) /* lwzx */,
644
645 /* x n l s w */ ARCH_DEPEND(HI(31) | LO(23) /* lwzx */, HI(31) | LO(21) /* ldx */),
646 /* x n l s b */ HI(31) | LO(87) /* lbzx */ /* EXTS_REQ */,
647 /* x n l s h */ HI(31) | LO(343) /* lhax */,
648 /* x n l s i */ ARCH_DEPEND(HI(31) | LO(23) /* lwzx */, HI(31) | LO(341) /* lwax */),
649
650 /* Write-back. */
651
652 /* x w s u w */ ARCH_DEPEND(HI(31) | LO(183) /* stwux */, HI(31) | LO(181) /* stdux */),
653 /* x w s u b */ HI(31) | LO(247) /* stbux */,
654 /* x w s u h */ HI(31) | LO(439) /* sthux */,
655 /* x w s u i */ HI(31) | LO(183) /* stwux */,
656
657 /* x w s s w */ ARCH_DEPEND(HI(31) | LO(183) /* stwux */, HI(31) | LO(181) /* stdux */),
658 /* x w s s b */ HI(31) | LO(247) /* stbux */,
659 /* x w s s h */ HI(31) | LO(439) /* sthux */,
660 /* x w s s i */ HI(31) | LO(183) /* stwux */,
661
662 /* x w l u w */ ARCH_DEPEND(HI(31) | LO(55) /* lwzux */, HI(31) | LO(53) /* ldux */),
663 /* x w l u b */ HI(31) | LO(119) /* lbzux */,
664 /* x w l u h */ HI(31) | LO(311) /* lhzux */,
665 /* x w l u i */ HI(31) | LO(55) /* lwzux */,
666
667 /* x w l s w */ ARCH_DEPEND(HI(31) | LO(55) /* lwzux */, HI(31) | LO(53) /* ldux */),
668 /* x w l s b */ HI(31) | LO(119) /* lbzux */ /* EXTS_REQ */,
669 /* x w l s h */ HI(31) | LO(375) /* lhaux */,
670 /* x w l s i */ ARCH_DEPEND(HI(31) | LO(55) /* lwzux */, HI(31) | LO(373) /* lwaux */)
671
672 };
673
674 #undef ARCH_DEPEND
675
676 /* Simple cases, (no caching is required). */
677 static int getput_arg_fast(struct sljit_compiler *compiler, int inp_flags, int reg, int arg, sljit_w argw)
678 {
679 sljit_ins inst;
680 #if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
681 int tmp_reg;
682 #endif
683
684 SLJIT_ASSERT(arg & SLJIT_MEM);
685 if (!(arg & 0xf)) {
686 #if (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32)
687 if (argw <= SIMM_MAX && argw >= SIMM_MIN) {
688 if (inp_flags & ARG_TEST)
689 return 1;
690
691 inst = data_transfer_insts[(inp_flags & ~WRITE_BACK) & MEM_MASK];
692 SLJIT_ASSERT(!(inst & (ADDR_MODE2 | UPDATE_REQ)));
693 push_inst(compiler, GET_INST_CODE(inst) | D(reg) | IMM(argw));
694 return -1;
695 }
696 #else
697 inst = data_transfer_insts[(inp_flags & ~WRITE_BACK) & MEM_MASK];
698 if (argw <= SIMM_MAX && argw >= SIMM_MIN &&
699 (!(inst & ADDR_MODE2) || (argw & 0x3) == 0)) {
700 if (inp_flags & ARG_TEST)
701 return 1;
702
703 push_inst(compiler, GET_INST_CODE(inst) | D(reg) | IMM(argw));
704 return -1;
705 }
706 #endif
707 return (inp_flags & ARG_TEST) ? SLJIT_SUCCESS : 0;
708 }
709
710 if (!(arg & 0xf0)) {
711 #if (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32)
712 if (argw <= SIMM_MAX && argw >= SIMM_MIN) {
713 if (inp_flags & ARG_TEST)
714 return 1;
715
716 inst = data_transfer_insts[inp_flags & MEM_MASK];
717 SLJIT_ASSERT(!(inst & (ADDR_MODE2 | UPDATE_REQ)));
718 push_inst(compiler, GET_INST_CODE(inst) | D(reg) | A(arg & 0xf) | IMM(argw));
719 return -1;
720 }
721 #else
722 inst = data_transfer_insts[inp_flags & MEM_MASK];
723 if (argw <= SIMM_MAX && argw >= SIMM_MIN && (!(inst & ADDR_MODE2) || (argw & 0x3) == 0)) {
724 if (inp_flags & ARG_TEST)
725 return 1;
726
727 if ((inp_flags & WRITE_BACK) && (inst & UPDATE_REQ)) {
728 tmp_reg = (inp_flags & LOAD_DATA) ? (arg & 0xf) : TMP_REG3;
729 if (push_inst(compiler, ADDI | D(tmp_reg) | A(arg & 0xf) | IMM(argw)))
730 return -1;
731 arg = tmp_reg | SLJIT_MEM;
732 argw = 0;
733 }
734 push_inst(compiler, GET_INST_CODE(inst) | D(reg) | A(arg & 0xf) | IMM(argw));
735 return -1;
736 }
737 #endif
738 }
739 else if (!(argw & 0x3)) {
740 if (inp_flags & ARG_TEST)
741 return 1;
742 inst = data_transfer_insts[(inp_flags | INDEXED) & MEM_MASK];
743 SLJIT_ASSERT(!(inst & (ADDR_MODE2 | UPDATE_REQ)));
744 push_inst(compiler, GET_INST_CODE(inst) | D(reg) | A(arg & 0xf) | B((arg >> 4) & 0xf));
745 return -1;
746 }
747 return (inp_flags & ARG_TEST) ? SLJIT_SUCCESS : 0;
748 }
749
750 /* See getput_arg below.
751 Note: can_cache is called only for binary operators. Those operator always
752 uses word arguments without write back. */
753 static int can_cache(int arg, sljit_w argw, int next_arg, sljit_w next_argw)
754 {
755 SLJIT_ASSERT(arg & SLJIT_MEM);
756 SLJIT_ASSERT(next_arg & SLJIT_MEM);
757
758 if (!(arg & 0xf)) {
759 if ((next_arg & SLJIT_MEM) && ((sljit_uw)argw - (sljit_uw)next_argw <= SIMM_MAX || (sljit_uw)next_argw - (sljit_uw)argw <= SIMM_MAX))
760 return 1;
761 return 0;
762 }
763
764 if (arg & 0xf0)
765 return 0;
766
767 if (argw <= SIMM_MAX && argw >= SIMM_MIN) {
768 if (arg == next_arg && (next_argw >= SIMM_MAX && next_argw <= SIMM_MIN))
769 return 1;
770 }
771
772 if (arg == next_arg && ((sljit_uw)argw - (sljit_uw)next_argw <= SIMM_MAX || (sljit_uw)next_argw - (sljit_uw)argw <= SIMM_MAX))
773 return 1;
774
775 return 0;
776 }
777
778 #if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
779 #define ADJUST_CACHED_IMM(imm) \
780 if ((inst & ADDR_MODE2) && (imm & 0x3)) { \
781 /* Adjust cached value. Fortunately this is really a rare case */ \
782 compiler->cache_argw += imm & 0x3; \
783 FAIL_IF(push_inst(compiler, ADDI | D(TMP_REG3) | A(TMP_REG3) | (imm & 0x3))); \
784 imm &= ~0x3; \
785 }
786 #else
787 #define ADJUST_CACHED_IMM(imm)
788 #endif
789
790 /* Emit the necessary instructions. See can_cache above. */
791 static int getput_arg(struct sljit_compiler *compiler, int inp_flags, int reg, int arg, sljit_w argw, int next_arg, sljit_w next_argw)
792 {
793 int tmp_r;
794 sljit_ins inst;
795
796 SLJIT_ASSERT(arg & SLJIT_MEM);
797
798 tmp_r = (inp_flags & LOAD_DATA) ? reg : TMP_REG3;
799 if ((arg & 0xf) == tmp_r) {
800 /* Special case for "mov reg, [reg, ... ]".
801 Caching would not happen anyway. */
802 tmp_r = TMP_REG3;
803 compiler->cache_arg = 0;
804 compiler->cache_argw = 0;
805 }
806
807 if (!(arg & 0xf)) {
808 inst = data_transfer_insts[(inp_flags & ~WRITE_BACK) & MEM_MASK];
809 if ((compiler->cache_arg & SLJIT_IMM) && (((sljit_uw)argw - (sljit_uw)compiler->cache_argw) <= SIMM_MAX || ((sljit_uw)compiler->cache_argw - (sljit_uw)argw) <= SIMM_MAX)) {
810 argw = argw - compiler->cache_argw;
811 ADJUST_CACHED_IMM(argw);
812 SLJIT_ASSERT(!(inst & UPDATE_REQ));
813 return push_inst(compiler, GET_INST_CODE(inst) | D(reg) | A(TMP_REG3) | IMM(argw));
814 }
815
816 if ((next_arg & SLJIT_MEM) && (argw - next_argw <= SIMM_MAX || next_argw - argw <= SIMM_MAX)) {
817 SLJIT_ASSERT(inp_flags & LOAD_DATA);
818
819 compiler->cache_arg = SLJIT_IMM;
820 compiler->cache_argw = argw;
821 tmp_r = TMP_REG3;
822 }
823
824 FAIL_IF(load_immediate(compiler, tmp_r, argw));
825 return push_inst(compiler, GET_INST_CODE(inst) | D(reg) | A(tmp_r));
826 }
827
828 if (SLJIT_UNLIKELY(arg & 0xf0)) {
829 argw &= 0x3;
830 /* Otherwise getput_arg_fast would capture it. */
831 SLJIT_ASSERT(argw);
832 #if (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32)
833 FAIL_IF(push_inst(compiler, RLWINM | S((arg >> 4) & 0xf) | A(tmp_r) | (argw << 11) | ((31 - argw) << 1)));
834 #else
835 FAIL_IF(push_inst(compiler, RLDI(tmp_r, (arg >> 4) & 0xf, argw, 63 - argw, 1)));
836 #endif
837 inst = data_transfer_insts[(inp_flags | INDEXED) & MEM_MASK];
838 SLJIT_ASSERT(!(inst & (ADDR_MODE2 | UPDATE_REQ)));
839 return push_inst(compiler, GET_INST_CODE(inst) | D(reg) | A(arg & 0xf) | B(tmp_r));
840 }
841
842 inst = data_transfer_insts[inp_flags & MEM_MASK];
843
844 if (compiler->cache_arg == arg && ((sljit_uw)argw - (sljit_uw)compiler->cache_argw <= SIMM_MAX || (sljit_uw)compiler->cache_argw - (sljit_uw)argw <= SIMM_MAX)) {
845 SLJIT_ASSERT(!(inp_flags & WRITE_BACK));
846 argw = argw - compiler->cache_argw;
847 ADJUST_CACHED_IMM(argw);
848 return push_inst(compiler, GET_INST_CODE(inst) | D(reg) | A(TMP_REG3) | IMM(argw));
849 }
850
851 if ((compiler->cache_arg & SLJIT_IMM) && compiler->cache_argw == argw) {
852 inst = data_transfer_insts[(inp_flags | INDEXED) & MEM_MASK];
853 SLJIT_ASSERT(!(inst & (ADDR_MODE2 | UPDATE_REQ)));
854 return push_inst(compiler, GET_INST_CODE(inst) | D(reg) | A(arg & 0xf) | B(TMP_REG3));
855 }
856
857 if (argw == next_argw && (next_arg & SLJIT_MEM)) {
858 SLJIT_ASSERT(inp_flags & LOAD_DATA);
859 FAIL_IF(load_immediate(compiler, TMP_REG3, argw));
860
861 compiler->cache_arg = SLJIT_IMM;
862 compiler->cache_argw = argw;
863
864 inst = data_transfer_insts[(inp_flags | INDEXED) & MEM_MASK];
865 SLJIT_ASSERT(!(inst & (ADDR_MODE2 | UPDATE_REQ)));
866 return push_inst(compiler, GET_INST_CODE(inst) | D(reg) | A(arg & 0xf) | B(TMP_REG3));
867 }
868
869 if (arg == next_arg && !(inp_flags & WRITE_BACK) && ((sljit_uw)argw - (sljit_uw)next_argw <= SIMM_MAX || (sljit_uw)next_argw - (sljit_uw)argw <= SIMM_MAX)) {
870 SLJIT_ASSERT(inp_flags & LOAD_DATA);
871 FAIL_IF(load_immediate(compiler, TMP_REG3, argw));
872 FAIL_IF(push_inst(compiler, ADD | D(TMP_REG3) | A(TMP_REG3) | B(arg & 0xf)));
873
874 compiler->cache_arg = arg;
875 compiler->cache_argw = argw;
876
877 return push_inst(compiler, GET_INST_CODE(inst) | D(reg) | A(TMP_REG3));
878 }
879
880 /* Get the indexed version instead of the normal one. */
881 inst = data_transfer_insts[(inp_flags | INDEXED) & MEM_MASK];
882 SLJIT_ASSERT(!(inst & (ADDR_MODE2 | UPDATE_REQ)));
883 FAIL_IF(load_immediate(compiler, tmp_r, argw));
884 return push_inst(compiler, GET_INST_CODE(inst) | D(reg) | A(arg & 0xf) | B(tmp_r));
885 }
886
887 static int emit_op(struct sljit_compiler *compiler, int op, int inp_flags,
888 int dst, sljit_w dstw,
889 int src1, sljit_w src1w,
890 int src2, sljit_w src2w)
891 {
892 /* arg1 goes to TMP_REG1 or src reg
893 arg2 goes to TMP_REG2, imm or src reg
894 TMP_REG3 can be used for caching
895 result goes to TMP_REG2, so put result can use TMP_REG1 and TMP_REG3. */
896 int dst_r;
897 int src1_r;
898 int src2_r;
899 int sugg_src2_r = TMP_REG2;
900 int flags = inp_flags & (ALT_FORM1 | ALT_FORM2 | ALT_FORM3 | ALT_FORM4 | ALT_FORM5 | ALT_FORM6 | ALT_SIGN_EXT | ALT_SET_FLAGS);
901
902 compiler->cache_arg = 0;
903 compiler->cache_argw = 0;
904
905 /* Destination check. */
906 if (dst >= SLJIT_TEMPORARY_REG1 && dst <= ZERO_REG) {
907 dst_r = dst;
908 flags |= REG_DEST;
909 if (op >= SLJIT_MOV && op <= SLJIT_MOVU_SI)
910 sugg_src2_r = dst_r;
911 }
912 else if (dst == SLJIT_UNUSED) {
913 if (op >= SLJIT_MOV && op <= SLJIT_MOVU_SI && !(src2 & SLJIT_MEM))
914 return SLJIT_SUCCESS;
915 dst_r = TMP_REG2;
916 }
917 else {
918 SLJIT_ASSERT(dst & SLJIT_MEM);
919 if (getput_arg_fast(compiler, inp_flags | ARG_TEST, TMP_REG2, dst, dstw)) {
920 flags |= FAST_DEST;
921 dst_r = TMP_REG2;
922 }
923 else {
924 flags |= SLOW_DEST;
925 dst_r = 0;
926 }
927 }
928
929 /* Source 1. */
930 if (src1 >= SLJIT_TEMPORARY_REG1 && src1 <= ZERO_REG) {
931 src1_r = src1;
932 flags |= REG1_SOURCE;
933 }
934 else if (src1 & SLJIT_IMM) {
935 #if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
936 if ((inp_flags & 0x3) == INT_DATA) {
937 if (inp_flags & SIGNED_DATA)
938 src1w = (signed int)src1w;
939 else
940 src1w = (unsigned int)src1w;
941 }
942 #endif
943 FAIL_IF(load_immediate(compiler, TMP_REG1, src1w));
944 src1_r = TMP_REG1;
945 }
946 else if (getput_arg_fast(compiler, inp_flags | LOAD_DATA, TMP_REG1, src1, src1w)) {
947 FAIL_IF(compiler->error);
948 src1_r = TMP_REG1;
949 }
950 else
951 src1_r = 0;
952
953 /* Source 2. */
954 if (src2 >= SLJIT_TEMPORARY_REG1 && src2 <= ZERO_REG) {
955 src2_r = src2;
956 flags |= REG2_SOURCE;
957 if (!(flags & REG_DEST) && op >= SLJIT_MOV && op <= SLJIT_MOVU_SI)
958 dst_r = src2_r;
959 }
960 else if (src2 & SLJIT_IMM) {
961 #if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
962 if ((inp_flags & 0x3) == INT_DATA) {
963 if (inp_flags & SIGNED_DATA)
964 src2w = (signed int)src2w;
965 else
966 src2w = (unsigned int)src2w;
967 }
968 #endif
969 FAIL_IF(load_immediate(compiler, sugg_src2_r, src2w));
970 src2_r = sugg_src2_r;
971 }
972 else if (getput_arg_fast(compiler, inp_flags | LOAD_DATA, sugg_src2_r, src2, src2w)) {
973 FAIL_IF(compiler->error);
974 src2_r = sugg_src2_r;
975 }
976 else
977 src2_r = 0;
978
979 /* src1_r, src2_r and dst_r can be zero (=unprocessed).
980 All arguments are complex addressing modes, and it is a binary operator. */
981 if (src1_r == 0 && src2_r == 0 && dst_r == 0) {
982 if (!can_cache(src1, src1w, src2, src2w) && can_cache(src1, src1w, dst, dstw)) {
983 FAIL_IF(getput_arg(compiler, inp_flags | LOAD_DATA, TMP_REG2, src2, src2w, src1, src1w));
984 FAIL_IF(getput_arg(compiler, inp_flags | LOAD_DATA, TMP_REG1, src1, src1w, dst, dstw));
985 }
986 else {
987 FAIL_IF(getput_arg(compiler, inp_flags | LOAD_DATA, TMP_REG1, src1, src1w, src2, src2w));
988 FAIL_IF(getput_arg(compiler, inp_flags | LOAD_DATA, TMP_REG2, src2, src2w, dst, dstw));
989 }
990 src1_r = TMP_REG1;
991 src2_r = TMP_REG2;
992 }
993 else if (src1_r == 0 && src2_r == 0) {
994 FAIL_IF(getput_arg(compiler, inp_flags | LOAD_DATA, TMP_REG1, src1, src1w, src2, src2w));
995 src1_r = TMP_REG1;
996 }
997 else if (src1_r == 0 && dst_r == 0) {
998 FAIL_IF(getput_arg(compiler, inp_flags | LOAD_DATA, TMP_REG1, src1, src1w, dst, dstw));
999 src1_r = TMP_REG1;
1000 }
1001 else if (src2_r == 0 && dst_r == 0) {
1002 FAIL_IF(getput_arg(compiler, inp_flags | LOAD_DATA, sugg_src2_r, src2, src2w, dst, dstw));
1003 src2_r = sugg_src2_r;
1004 }
1005
1006 if (dst_r == 0)
1007 dst_r = TMP_REG2;
1008
1009 if (src1_r == 0) {
1010 FAIL_IF(getput_arg(compiler, inp_flags | LOAD_DATA, TMP_REG1, src1, src1w, 0, 0));
1011 src1_r = TMP_REG1;
1012 }
1013
1014 if (src2_r == 0) {
1015 FAIL_IF(getput_arg(compiler, inp_flags | LOAD_DATA, sugg_src2_r, src2, src2w, 0, 0));
1016 src2_r = sugg_src2_r;
1017 }
1018
1019 FAIL_IF(emit_single_op(compiler, op, flags, dst_r, src1_r, src2_r));
1020
1021 if (flags & (FAST_DEST | SLOW_DEST)) {
1022 if (flags & FAST_DEST)
1023 FAIL_IF(getput_arg_fast(compiler, inp_flags, dst_r, dst, dstw));
1024 else
1025 FAIL_IF(getput_arg(compiler, inp_flags, dst_r, dst, dstw, 0, 0));
1026 }
1027 return SLJIT_SUCCESS;
1028 }
1029
1030 SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_op0(struct sljit_compiler *compiler, int op)
1031 {
1032 CHECK_ERROR();
1033 check_sljit_emit_op0(compiler, op);
1034
1035 switch (GET_OPCODE(op)) {
1036 case SLJIT_BREAKPOINT:
1037 case SLJIT_NOP:
1038 return push_inst(compiler, NOP);
1039 break;
1040 case SLJIT_UMUL:
1041 case SLJIT_SMUL:
1042 FAIL_IF(push_inst(compiler, OR | S(SLJIT_TEMPORARY_REG1) | A(TMP_REG1) | B(SLJIT_TEMPORARY_REG1)));
1043 #if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
1044 FAIL_IF(push_inst(compiler, MULLD | D(SLJIT_TEMPORARY_REG1) | A(TMP_REG1) | B(SLJIT_TEMPORARY_REG2)));
1045 return push_inst(compiler, (GET_OPCODE(op) == SLJIT_UMUL ? MULHDU : MULHD) | D(SLJIT_TEMPORARY_REG2) | A(TMP_REG1) | B(SLJIT_TEMPORARY_REG2));
1046 #else
1047 FAIL_IF(push_inst(compiler, MULLW | D(SLJIT_TEMPORARY_REG1) | A(TMP_REG1) | B(SLJIT_TEMPORARY_REG2)));
1048 return push_inst(compiler, (GET_OPCODE(op) == SLJIT_UMUL ? MULHWU : MULHW) | D(SLJIT_TEMPORARY_REG2) | A(TMP_REG1) | B(SLJIT_TEMPORARY_REG2));
1049 #endif
1050 case SLJIT_UDIV:
1051 case SLJIT_SDIV:
1052 FAIL_IF(push_inst(compiler, OR | S(SLJIT_TEMPORARY_REG1) | A(TMP_REG1) | B(SLJIT_TEMPORARY_REG1)));
1053 #if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
1054 if (op & SLJIT_INT_OP) {
1055 FAIL_IF(push_inst(compiler, (GET_OPCODE(op) == SLJIT_UDIV ? DIVWU : DIVW) | D(SLJIT_TEMPORARY_REG1) | A(TMP_REG1) | B(SLJIT_TEMPORARY_REG2)));
1056 FAIL_IF(push_inst(compiler, MULLW | D(SLJIT_TEMPORARY_REG2) | A(SLJIT_TEMPORARY_REG1) | B(SLJIT_TEMPORARY_REG2)));
1057 return push_inst(compiler, SUBF | D(SLJIT_TEMPORARY_REG2) | A(SLJIT_TEMPORARY_REG2) | B(TMP_REG1));
1058 }
1059 FAIL_IF(push_inst(compiler, (GET_OPCODE(op) == SLJIT_UDIV ? DIVDU : DIVD) | D(SLJIT_TEMPORARY_REG1) | A(TMP_REG1) | B(SLJIT_TEMPORARY_REG2)));
1060 FAIL_IF(push_inst(compiler, MULLD | D(SLJIT_TEMPORARY_REG2) | A(SLJIT_TEMPORARY_REG1) | B(SLJIT_TEMPORARY_REG2)));
1061 return push_inst(compiler, SUBF | D(SLJIT_TEMPORARY_REG2) | A(SLJIT_TEMPORARY_REG2) | B(TMP_REG1));
1062 #else
1063 FAIL_IF(push_inst(compiler, (GET_OPCODE(op) == SLJIT_UDIV ? DIVWU : DIVW) | D(SLJIT_TEMPORARY_REG1) | A(TMP_REG1) | B(SLJIT_TEMPORARY_REG2)));
1064 FAIL_IF(push_inst(compiler, MULLW | D(SLJIT_TEMPORARY_REG2) | A(SLJIT_TEMPORARY_REG1) | B(SLJIT_TEMPORARY_REG2)));
1065 return push_inst(compiler, SUBF | D(SLJIT_TEMPORARY_REG2) | A(SLJIT_TEMPORARY_REG2) | B(TMP_REG1));
1066 #endif
1067 }
1068
1069 return SLJIT_SUCCESS;
1070 }
1071
1072 SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_op1(struct sljit_compiler *compiler, int op,
1073 int dst, sljit_w dstw,
1074 int src, sljit_w srcw)
1075 {
1076 int inp_flags = GET_FLAGS(op) ? ALT_SET_FLAGS : 0;
1077
1078 CHECK_ERROR();
1079 check_sljit_emit_op1(compiler, op, dst, dstw, src, srcw);
1080
1081 if ((src & SLJIT_IMM) && srcw == 0)
1082 src = ZERO_REG;
1083
1084 #if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
1085 if (op & SLJIT_INT_OP) {
1086 inp_flags |= INT_DATA | SIGNED_DATA;
1087 if (src & SLJIT_IMM)
1088 srcw = (int)srcw;
1089 }
1090 #endif
1091 if (op & SLJIT_SET_O)
1092 FAIL_IF(push_inst(compiler, MTXER | S(ZERO_REG)));
1093
1094 switch (GET_OPCODE(op)) {
1095 case SLJIT_MOV:
1096 return emit_op(compiler, SLJIT_MOV, inp_flags | WORD_DATA, dst, dstw, TMP_REG1, 0, src, srcw);
1097
1098 case SLJIT_MOV_UI:
1099 return emit_op(compiler, SLJIT_MOV_UI, inp_flags | INT_DATA, dst, dstw, TMP_REG1, 0, src, srcw);
1100
1101 case SLJIT_MOV_SI:
1102 return emit_op(compiler, SLJIT_MOV_SI, inp_flags | INT_DATA | SIGNED_DATA, dst, dstw, TMP_REG1, 0, src, srcw);
1103
1104 case SLJIT_MOV_UB:
1105 return emit_op(compiler, SLJIT_MOV_UB, inp_flags | BYTE_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (unsigned char)srcw : srcw);
1106
1107 case SLJIT_MOV_SB:
1108 return emit_op(compiler, SLJIT_MOV_SB, inp_flags | BYTE_DATA | SIGNED_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (signed char)srcw : srcw);
1109
1110 case SLJIT_MOV_UH:
1111 return emit_op(compiler, SLJIT_MOV_UH, inp_flags | HALF_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (unsigned short)srcw : srcw);
1112
1113 case SLJIT_MOV_SH:
1114 return emit_op(compiler, SLJIT_MOV_SH, inp_flags | HALF_DATA | SIGNED_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (signed short)srcw : srcw);
1115
1116 case SLJIT_MOVU:
1117 return emit_op(compiler, SLJIT_MOV, inp_flags | WORD_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, srcw);
1118
1119 case SLJIT_MOVU_UI:
1120 return emit_op(compiler, SLJIT_MOV_UI, inp_flags | INT_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, srcw);
1121
1122 case SLJIT_MOVU_SI:
1123 return emit_op(compiler, SLJIT_MOV_SI, inp_flags | INT_DATA | SIGNED_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, srcw);
1124
1125 case SLJIT_MOVU_UB:
1126 return emit_op(compiler, SLJIT_MOV_UB, inp_flags | BYTE_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (unsigned char)srcw : srcw);
1127
1128 case SLJIT_MOVU_SB:
1129 return emit_op(compiler, SLJIT_MOV_SB, inp_flags | BYTE_DATA | SIGNED_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (signed char)srcw : srcw);
1130
1131 case SLJIT_MOVU_UH:
1132 return emit_op(compiler, SLJIT_MOV_UH, inp_flags | HALF_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (unsigned short)srcw : srcw);
1133
1134 case SLJIT_MOVU_SH:
1135 return emit_op(compiler, SLJIT_MOV_SH, inp_flags | HALF_DATA | SIGNED_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (signed short)srcw : srcw);
1136
1137 case SLJIT_NOT:
1138 return emit_op(compiler, SLJIT_NOT, inp_flags, dst, dstw, TMP_REG1, 0, src, srcw);
1139
1140 case SLJIT_NEG:
1141 return emit_op(compiler, SLJIT_NEG, inp_flags, dst, dstw, TMP_REG1, 0, src, srcw);
1142
1143 case SLJIT_CLZ:
1144 #if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
1145 return emit_op(compiler, SLJIT_CLZ, inp_flags | (!(op & SLJIT_INT_OP) ? 0 : ALT_FORM1), dst, dstw, TMP_REG1, 0, src, srcw);
1146 #else
1147 return emit_op(compiler, SLJIT_CLZ, inp_flags, dst, dstw, TMP_REG1, 0, src, srcw);
1148 #endif
1149 }
1150
1151 return SLJIT_SUCCESS;
1152 }
1153
1154 #define TEST_SL_IMM(src, srcw) \
1155 (((src) & SLJIT_IMM) && (srcw) <= SIMM_MAX && (srcw) >= SIMM_MIN)
1156
1157 #define TEST_UL_IMM(src, srcw) \
1158 (((src) & SLJIT_IMM) && !((srcw) & ~0xffff))
1159
1160 #if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
1161 #define TEST_SH_IMM(src, srcw) \
1162 (((src) & SLJIT_IMM) && !((srcw) & 0xffff) && (srcw) <= SLJIT_W(0x7fffffff) && (srcw) >= SLJIT_W(-0x80000000))
1163 #else
1164 #define TEST_SH_IMM(src, srcw) \
1165 (((src) & SLJIT_IMM) && !((srcw) & 0xffff))
1166 #endif
1167
1168 #define TEST_UH_IMM(src, srcw) \
1169 (((src) & SLJIT_IMM) && !((srcw) & ~0xffff0000))
1170
1171 #if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
1172 #define TEST_ADD_IMM(src, srcw) \
1173 (((src) & SLJIT_IMM) && (srcw) <= SLJIT_W(0x7fff7fff) && (srcw) >= SLJIT_W(-0x80000000))
1174 #else
1175 #define TEST_ADD_IMM(src, srcw) \
1176 ((src) & SLJIT_IMM)
1177 #endif
1178
1179 #if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
1180 #define TEST_UI_IMM(src, srcw) \
1181 (((src) & SLJIT_IMM) && !((srcw) & ~0xffffffff))
1182 #else
1183 #define TEST_UI_IMM(src, srcw) \
1184 ((src) & SLJIT_IMM)
1185 #endif
1186
1187 SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_op2(struct sljit_compiler *compiler, int op,
1188 int dst, sljit_w dstw,
1189 int src1, sljit_w src1w,
1190 int src2, sljit_w src2w)
1191 {
1192 int inp_flags = GET_FLAGS(op) ? ALT_SET_FLAGS : 0;
1193
1194 CHECK_ERROR();
1195 check_sljit_emit_op2(compiler, op, dst, dstw, src1, src1w, src2, src2w);
1196
1197 if ((src1 & SLJIT_IMM) && src1w == 0)
1198 src1 = ZERO_REG;
1199 if ((src2 & SLJIT_IMM) && src2w == 0)
1200 src2 = ZERO_REG;
1201
1202 #if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
1203 if (op & SLJIT_INT_OP) {
1204 inp_flags |= INT_DATA | SIGNED_DATA;
1205 if (src1 & SLJIT_IMM)
1206 src1w = (src1w << 32) >> 32;
1207 if (src2 & SLJIT_IMM)
1208 src2w = (src2w << 32) >> 32;
1209 if (GET_FLAGS(op))
1210 inp_flags |= ALT_SIGN_EXT;
1211 }
1212 #endif
1213 if (op & SLJIT_SET_O)
1214 FAIL_IF(push_inst(compiler, MTXER | S(ZERO_REG)));
1215
1216 switch (GET_OPCODE(op)) {
1217 case SLJIT_ADD:
1218 if (!GET_FLAGS(op) && ((src1 | src2) & SLJIT_IMM)) {
1219 if (TEST_SL_IMM(src2, src2w)) {
1220 compiler->imm = src2w & 0xffff;
1221 return emit_op(compiler, SLJIT_ADD, inp_flags | ALT_FORM1, dst, dstw, src1, src1w, TMP_REG2, 0);
1222 }
1223 if (TEST_SL_IMM(src1, src1w)) {
1224 compiler->imm = src1w & 0xffff;
1225 return emit_op(compiler, SLJIT_ADD, inp_flags | ALT_FORM1, dst, dstw, src2, src2w, TMP_REG2, 0);
1226 }
1227 if (TEST_SH_IMM(src2, src2w)) {
1228 compiler->imm = (src2w >> 16) & 0xffff;
1229 return emit_op(compiler, SLJIT_ADD, inp_flags | ALT_FORM2, dst, dstw, src1, src1w, TMP_REG2, 0);
1230 }
1231 if (TEST_SH_IMM(src1, src1w)) {
1232 compiler->imm = (src1w >> 16) & 0xffff;
1233 return emit_op(compiler, SLJIT_ADD, inp_flags | ALT_FORM2, dst, dstw, src2, src2w, TMP_REG2, 0);
1234 }
1235 /* Range between -1 and -32768 is covered above. */
1236 if (TEST_ADD_IMM(src2, src2w)) {
1237 compiler->imm = src2w & 0xffffffff;
1238 return emit_op(compiler, SLJIT_ADD, inp_flags | ALT_FORM4, dst, dstw, src1, src1w, TMP_REG2, 0);
1239 }
1240 if (TEST_ADD_IMM(src1, src1w)) {
1241 compiler->imm = src1w & 0xffffffff;
1242 return emit_op(compiler, SLJIT_ADD, inp_flags | ALT_FORM4, dst, dstw, src2, src2w, TMP_REG2, 0);
1243 }
1244 }
1245 if (!(GET_FLAGS(op) & (SLJIT_SET_E | SLJIT_SET_O))) {
1246 if (TEST_SL_IMM(src2, src2w)) {
1247 compiler->imm = src2w & 0xffff;
1248 return emit_op(compiler, SLJIT_ADD, inp_flags | ALT_FORM3, dst, dstw, src1, src1w, TMP_REG2, 0);
1249 }
1250 if (TEST_SL_IMM(src1, src1w)) {
1251 compiler->imm = src1w & 0xffff;
1252 return emit_op(compiler, SLJIT_ADD, inp_flags | ALT_FORM3, dst, dstw, src2, src2w, TMP_REG2, 0);
1253 }
1254 }
1255 return emit_op(compiler, SLJIT_ADD, inp_flags, dst, dstw, src1, src1w, src2, src2w);
1256
1257 case SLJIT_ADDC:
1258 return emit_op(compiler, SLJIT_ADDC, inp_flags | (!(op & SLJIT_KEEP_FLAGS) ? 0 : ALT_FORM1), dst, dstw, src1, src1w, src2, src2w);
1259
1260 case SLJIT_SUB:
1261 if (!GET_FLAGS(op) && ((src1 | src2) & SLJIT_IMM)) {
1262 if (TEST_SL_IMM(src2, -src2w)) {
1263 compiler->imm = (-src2w) & 0xffff;
1264 return emit_op(compiler, SLJIT_ADD, inp_flags | ALT_FORM1, dst, dstw, src1, src1w, TMP_REG2, 0);
1265 }
1266 if (TEST_SL_IMM(src1, src1w)) {
1267 compiler->imm = src1w & 0xffff;
1268 return emit_op(compiler, SLJIT_SUB, inp_flags | ALT_FORM1, dst, dstw, src2, src2w, TMP_REG2, 0);
1269 }
1270 if (TEST_SH_IMM(src2, -src2w)) {
1271 compiler->imm = ((-src2w) >> 16) & 0xffff;
1272 return emit_op(compiler, SLJIT_ADD, inp_flags | ALT_FORM2, dst, dstw, src1, src1w, TMP_REG2, 0);
1273 }
1274 /* Range between -1 and -32768 is covered above. */
1275 if (TEST_ADD_IMM(src2, -src2w)) {
1276 compiler->imm = -src2w & 0xffffffff;
1277 return emit_op(compiler, SLJIT_ADD, inp_flags | ALT_FORM4, dst, dstw, src1, src1w, TMP_REG2, 0);
1278 }
1279 }
1280 if (dst == SLJIT_UNUSED && (op & (SLJIT_SET_E | SLJIT_SET_S | SLJIT_SET_U)) && !(op & (SLJIT_SET_O | SLJIT_SET_C))) {
1281 if (!(op & SLJIT_SET_U)) {
1282 /* We know ALT_SIGN_EXT is set if it is an SLJIT_INT_OP on 64 bit systems. */
1283 if (TEST_SL_IMM(src2, src2w)) {
1284 compiler->imm = src2w & 0xffff;
1285 return emit_op(compiler, SLJIT_SUB, inp_flags | ALT_FORM2, dst, dstw, src1, src1w, TMP_REG2, 0);
1286 }
1287 if (GET_FLAGS(op) == SLJIT_SET_E && TEST_SL_IMM(src1, src1w)) {
1288 compiler->imm = src1w & 0xffff;
1289 return emit_op(compiler, SLJIT_SUB, inp_flags | ALT_FORM2, dst, dstw, src2, src2w, TMP_REG2, 0);
1290 }
1291 }
1292 if (!(op & (SLJIT_SET_E | SLJIT_SET_S))) {
1293 /* We know ALT_SIGN_EXT is set if it is an SLJIT_INT_OP on 64 bit systems. */
1294 if (TEST_UL_IMM(src2, src2w)) {
1295 compiler->imm = src2w & 0xffff;
1296 return emit_op(compiler, SLJIT_SUB, inp_flags | ALT_FORM3, dst, dstw, src1, src1w, TMP_REG2, 0);
1297 }
1298 return emit_op(compiler, SLJIT_SUB, inp_flags | ALT_FORM4, dst, dstw, src1, src1w, src2, src2w);
1299 }
1300 if ((src2 & SLJIT_IMM) && src2w >= 0 && src2w <= 0x7fff) {
1301 compiler->imm = src2w;
1302 return emit_op(compiler, SLJIT_SUB, inp_flags | ALT_FORM2 | ALT_FORM3, dst, dstw, src1, src1w, TMP_REG2, 0);
1303 }
1304 return emit_op(compiler, SLJIT_SUB, inp_flags | ((op & SLJIT_SET_U) ? ALT_FORM4 : 0) | ((op & (SLJIT_SET_E | SLJIT_SET_S)) ? ALT_FORM5 : 0), dst, dstw, src1, src1w, src2, src2w);
1305 }
1306 if (!(op & (SLJIT_SET_E | SLJIT_SET_S | SLJIT_SET_U | SLJIT_SET_O))) {
1307 if (TEST_SL_IMM(src2, -src2w)) {
1308 compiler->imm = (-src2w) & 0xffff;
1309 return emit_op(compiler, SLJIT_ADD, inp_flags | ALT_FORM3, dst, dstw, src1, src1w, TMP_REG2, 0);
1310 }
1311 }
1312 /* We know ALT_SIGN_EXT is set if it is an SLJIT_INT_OP on 64 bit systems. */
1313 return emit_op(compiler, SLJIT_SUB, inp_flags | (!(op & SLJIT_SET_U) ? 0 : ALT_FORM6), dst, dstw, src1, src1w, src2, src2w);
1314
1315 case SLJIT_SUBC:
1316 return emit_op(compiler, SLJIT_SUBC, inp_flags | (!(op & SLJIT_KEEP_FLAGS) ? 0 : ALT_FORM1), dst, dstw, src1, src1w, src2, src2w);
1317
1318 case SLJIT_MUL:
1319 #if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
1320 if (op & SLJIT_INT_OP)
1321 inp_flags |= ALT_FORM2;
1322 #endif
1323 if (!GET_FLAGS(op)) {
1324 if (TEST_SL_IMM(src2, src2w)) {
1325 compiler->imm = src2w & 0xffff;
1326 return emit_op(compiler, SLJIT_MUL, inp_flags | ALT_FORM1, dst, dstw, src1, src1w, TMP_REG2, 0);
1327 }
1328 if (TEST_SL_IMM(src1, src1w)) {
1329 compiler->imm = src1w & 0xffff;
1330 return emit_op(compiler, SLJIT_MUL, inp_flags | ALT_FORM1, dst, dstw, src2, src2w, TMP_REG2, 0);
1331 }
1332 }
1333 return emit_op(compiler, SLJIT_MUL, inp_flags, dst, dstw, src1, src1w, src2, src2w);
1334
1335 case SLJIT_AND:
1336 case SLJIT_OR:
1337 case SLJIT_XOR:
1338 /* Commutative unsigned operations. */
1339 if (!GET_FLAGS(op) || GET_OPCODE(op) == SLJIT_AND) {
1340 if (TEST_UL_IMM(src2, src2w)) {
1341 compiler->imm = src2w;
1342 return emit_op(compiler, GET_OPCODE(op), inp_flags | ALT_FORM1, dst, dstw, src1, src1w, TMP_REG2, 0);
1343 }
1344 if (TEST_UL_IMM(src1, src1w)) {
1345 compiler->imm = src1w;
1346 return emit_op(compiler, GET_OPCODE(op), inp_flags | ALT_FORM1, dst, dstw, src2, src2w, TMP_REG2, 0);
1347 }
1348 if (TEST_UH_IMM(src2, src2w)) {
1349 compiler->imm = (src2w >> 16) & 0xffff;
1350 return emit_op(compiler, GET_OPCODE(op), inp_flags | ALT_FORM2, dst, dstw, src1, src1w, TMP_REG2, 0);
1351 }
1352 if (TEST_UH_IMM(src1, src1w)) {
1353 compiler->imm = (src1w >> 16) & 0xffff;
1354 return emit_op(compiler, GET_OPCODE(op), inp_flags | ALT_FORM2, dst, dstw, src2, src2w, TMP_REG2, 0);
1355 }
1356 }
1357 if (!GET_FLAGS(op) && GET_OPCODE(op) != SLJIT_AND) {
1358 if (TEST_UI_IMM(src2, src2w)) {
1359 compiler->imm = src2w;
1360 return emit_op(compiler, GET_OPCODE(op), inp_flags | ALT_FORM3, dst, dstw, src1, src1w, TMP_REG2, 0);
1361 }
1362 if (TEST_UI_IMM(src1, src1w)) {
1363 compiler->imm = src1w;
1364 return emit_op(compiler, GET_OPCODE(op), inp_flags | ALT_FORM3, dst, dstw, src2, src2w, TMP_REG2, 0);
1365 }
1366 }
1367 return emit_op(compiler, GET_OPCODE(op), inp_flags, dst, dstw, src1, src1w, src2, src2w);
1368
1369 case SLJIT_SHL:
1370 case SLJIT_LSHR:
1371 case SLJIT_ASHR:
1372 #if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
1373 if (op & SLJIT_INT_OP)
1374 inp_flags |= ALT_FORM2;
1375 #endif
1376 if (src2 & SLJIT_IMM) {
1377 compiler->imm = src2w;
1378 return emit_op(compiler, GET_OPCODE(op), inp_flags | ALT_FORM1, dst, dstw, src1, src1w, TMP_REG2, 0);
1379 }
1380 return emit_op(compiler, GET_OPCODE(op), inp_flags, dst, dstw, src1, src1w, src2, src2w);
1381 }
1382
1383 return SLJIT_SUCCESS;
1384 }
1385
1386 SLJIT_API_FUNC_ATTRIBUTE int sljit_get_register_index(int reg)
1387 {
1388 check_sljit_get_register_index(reg);
1389 return reg_map[reg];
1390 }
1391
1392 SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_op_custom(struct sljit_compiler *compiler,
1393 void *instruction, int size)
1394 {
1395 CHECK_ERROR();
1396 check_sljit_emit_op_custom(compiler, instruction, size);
1397 SLJIT_ASSERT(size == 4);
1398
1399 return push_inst(compiler, *(sljit_ins*)instruction);
1400 }
1401
1402 /* --------------------------------------------------------------------- */
1403 /* Floating point operators */
1404 /* --------------------------------------------------------------------- */
1405
1406 SLJIT_API_FUNC_ATTRIBUTE int sljit_is_fpu_available(void)
1407 {
1408 /* Always available. */
1409 return 1;
1410 }
1411
1412 static int emit_fpu_data_transfer(struct sljit_compiler *compiler, int fpu_reg, int load, int arg, sljit_w argw)
1413 {
1414 SLJIT_ASSERT(arg & SLJIT_MEM);
1415
1416 /* Fast loads and stores. */
1417 if (!(arg & 0xf0)) {
1418 /* Both for (arg & 0xf) == SLJIT_UNUSED and (arg & 0xf) != SLJIT_UNUSED. */
1419 if (argw <= SIMM_MAX && argw >= SIMM_MIN)
1420 return push_inst(compiler, (load ? LFD : STFD) | FD(fpu_reg) | A(arg & 0xf) | IMM(argw));
1421 }
1422
1423 if (arg & 0xf0) {
1424 argw &= 0x3;
1425 if (argw) {
1426 #if (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32)
1427 FAIL_IF(push_inst(compiler, RLWINM | S((arg >> 4) & 0xf) | A(TMP_REG2) | (argw << 11) | ((31 - argw) << 1)));
1428 #else
1429 FAIL_IF(push_inst(compiler, RLDI(TMP_REG2, (arg >> 4) & 0xf, argw, 63 - argw, 1)));
1430 #endif
1431 return push_inst(compiler, (load ? LFDX : STFDX) | FD(fpu_reg) | A(arg & 0xf) | B(TMP_REG2));
1432 }
1433 return push_inst(compiler, (load ? LFDX : STFDX) | FD(fpu_reg) | A(arg & 0xf) | B((arg >> 4) & 0xf));
1434 }
1435
1436 /* Use cache. */
1437 if (compiler->cache_arg == arg && argw - compiler->cache_argw <= SIMM_MAX && argw - compiler->cache_argw >= SIMM_MIN)
1438 return push_inst(compiler, (load ? LFD : STFD) | FD(fpu_reg) | A(TMP_REG3) | IMM(argw - compiler->cache_argw));
1439
1440 /* Put value to cache. */
1441 compiler->cache_arg = arg;
1442 compiler->cache_argw = argw;
1443
1444 FAIL_IF(load_immediate(compiler, TMP_REG3, argw));
1445 if (!(arg & 0xf))
1446 return push_inst(compiler, (load ? LFDX : STFDX) | FD(fpu_reg) | A(0) | B(TMP_REG3));
1447 return push_inst(compiler, (load ? LFDUX : STFDUX) | FD(fpu_reg) | A(TMP_REG3) | B(arg & 0xf));
1448 }
1449
1450 SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_fop1(struct sljit_compiler *compiler, int op,
1451 int dst, sljit_w dstw,
1452 int src, sljit_w srcw)
1453 {
1454 int dst_fr;
1455
1456 CHECK_ERROR();
1457 check_sljit_emit_fop1(compiler, op, dst, dstw, src, srcw);
1458
1459 compiler->cache_arg = 0;
1460 compiler->cache_argw = 0;
1461
1462 if (GET_OPCODE(op) == SLJIT_FCMP) {
1463 if (dst > SLJIT_FLOAT_REG4) {
1464 FAIL_IF(emit_fpu_data_transfer(compiler, TMP_FREG1, 1, dst, dstw));
1465 dst = TMP_FREG1;
1466 }
1467 if (src > SLJIT_FLOAT_REG4) {
1468 FAIL_IF(emit_fpu_data_transfer(compiler, TMP_FREG2, 1, src, srcw));
1469 src = TMP_FREG2;
1470 }
1471 return push_inst(compiler, FCMPU | CRD(4) | FA(dst) | FB(src));
1472 }
1473
1474 dst_fr = (dst > SLJIT_FLOAT_REG4) ? TMP_FREG1 : dst;
1475
1476 if (src > SLJIT_FLOAT_REG4) {
1477 FAIL_IF(emit_fpu_data_transfer(compiler, dst_fr, 1, src, srcw));
1478 src = dst_fr;
1479 }
1480
1481 switch (op) {
1482 case SLJIT_FMOV:
1483 if (src != dst_fr && dst_fr != TMP_FREG1)
1484 FAIL_IF(push_inst(compiler, FMR | FD(dst_fr) | FB(src)));
1485 break;
1486 case SLJIT_FNEG:
1487 FAIL_IF(push_inst(compiler, FNEG | FD(dst_fr) | FB(src)));
1488 break;
1489 case SLJIT_FABS:
1490 FAIL_IF(push_inst(compiler, FABS | FD(dst_fr) | FB(src)));
1491 break;
1492 }
1493
1494 if (dst_fr == TMP_FREG1)
1495 FAIL_IF(emit_fpu_data_transfer(compiler, src, 0, dst, dstw));
1496
1497 return SLJIT_SUCCESS;
1498 }
1499
1500 SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_fop2(struct sljit_compiler *compiler, int op,
1501 int dst, sljit_w dstw,
1502 int src1, sljit_w src1w,
1503 int src2, sljit_w src2w)
1504 {
1505 int dst_fr;
1506
1507 CHECK_ERROR();
1508 check_sljit_emit_fop2(compiler, op, dst, dstw, src1, src1w, src2, src2w);
1509
1510 compiler->cache_arg = 0;
1511 compiler->cache_argw = 0;
1512
1513 dst_fr = (dst > SLJIT_FLOAT_REG4) ? TMP_FREG1 : dst;
1514
1515 if (src2 > SLJIT_FLOAT_REG4) {
1516 FAIL_IF(emit_fpu_data_transfer(compiler, TMP_FREG2, 1, src2, src2w));
1517 src2 = TMP_FREG2;
1518 }
1519
1520 if (src1 > SLJIT_FLOAT_REG4) {
1521 FAIL_IF(emit_fpu_data_transfer(compiler, TMP_FREG1, 1, src1, src1w));
1522 src1 = TMP_FREG1;
1523 }
1524
1525 switch (op) {
1526 case SLJIT_FADD:
1527 FAIL_IF(push_inst(compiler, FADD | FD(dst_fr) | FA(src1) | FB(src2)));
1528 break;
1529
1530 case SLJIT_FSUB:
1531 FAIL_IF(push_inst(compiler, FSUB | FD(dst_fr) | FA(src1) | FB(src2)));
1532 break;
1533
1534 case SLJIT_FMUL:
1535 FAIL_IF(push_inst(compiler, FMUL | FD(dst_fr) | FA(src1) | FC(src2) /* FMUL use FC as src2 */));
1536 break;
1537
1538 case SLJIT_FDIV:
1539 FAIL_IF(push_inst(compiler, FDIV | FD(dst_fr) | FA(src1) | FB(src2)));
1540 break;
1541 }
1542
1543 if (dst_fr == TMP_FREG1)
1544 FAIL_IF(emit_fpu_data_transfer(compiler, TMP_FREG1, 0, dst, dstw));
1545
1546 return SLJIT_SUCCESS;
1547 }
1548
1549 /* --------------------------------------------------------------------- */
1550 /* Other instructions */
1551 /* --------------------------------------------------------------------- */
1552
1553 SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_fast_enter(struct sljit_compiler *compiler, int dst, sljit_w dstw, int args, int temporaries, int saveds, int local_size)
1554 {
1555 CHECK_ERROR();
1556 check_sljit_emit_fast_enter(compiler, dst, dstw, args, temporaries, saveds, local_size);
1557
1558 compiler->temporaries = temporaries;
1559 compiler->saveds = saveds;
1560
1561 compiler->has_locals = local_size > 0;
1562 #if (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32)
1563 compiler->local_size = (2 + saveds + 2) * sizeof(sljit_w) + local_size;
1564 #else
1565 compiler->local_size = (2 + saveds + 7 + 8) * sizeof(sljit_w) + local_size;
1566 #endif
1567 compiler->local_size = (compiler->local_size + 15) & ~0xf;
1568
1569 if (dst >= SLJIT_TEMPORARY_REG1 && dst <= SLJIT_NO_REGISTERS)
1570 return push_inst(compiler, MFLR | D(dst));
1571 else if (dst & SLJIT_MEM) {
1572 FAIL_IF(push_inst(compiler, MFLR | D(TMP_REG2)));
1573 return emit_op(compiler, SLJIT_MOV, WORD_DATA, dst, dstw, TMP_REG1, 0, TMP_REG2, 0);
1574 }
1575
1576 return SLJIT_SUCCESS;
1577 }
1578
1579 SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_fast_return(struct sljit_compiler *compiler, int src, sljit_w srcw)
1580 {
1581 CHECK_ERROR();
1582 check_sljit_emit_fast_return(compiler, src, srcw);
1583
1584 if (src >= SLJIT_TEMPORARY_REG1 && src <= SLJIT_NO_REGISTERS)
1585 FAIL_IF(push_inst(compiler, MTLR | S(src)));
1586 else {
1587 if (src & SLJIT_MEM)
1588 FAIL_IF(emit_op(compiler, SLJIT_MOV, WORD_DATA, TMP_REG2, 0, TMP_REG1, 0, src, srcw));
1589 else if (src & SLJIT_IMM)
1590 FAIL_IF(load_immediate(compiler, TMP_REG2, srcw));
1591 FAIL_IF(push_inst(compiler, MTLR | S(TMP_REG2)));
1592 }
1593 return push_inst(compiler, BLR);
1594 }
1595
1596 /* --------------------------------------------------------------------- */
1597 /* Conditional instructions */
1598 /* --------------------------------------------------------------------- */
1599
1600 SLJIT_API_FUNC_ATTRIBUTE struct sljit_label* sljit_emit_label(struct sljit_compiler *compiler)
1601 {
1602 struct sljit_label *label;
1603
1604 CHECK_ERROR_PTR();
1605 check_sljit_emit_label(compiler);
1606
1607 if (compiler->last_label && compiler->last_label->size == compiler->size)
1608 return compiler->last_label;
1609
1610 label = (struct sljit_label*)ensure_abuf(compiler, sizeof(struct sljit_label));
1611 PTR_FAIL_IF(!label);
1612 set_label(label, compiler);
1613 return label;
1614 }
1615
1616 static sljit_ins get_bo_bi_flags(struct sljit_compiler *compiler, int type)
1617 {
1618 switch (type) {
1619 case SLJIT_C_EQUAL:
1620 return (12 << 21) | (2 << 16);
1621
1622 case SLJIT_C_NOT_EQUAL:
1623 return (4 << 21) | (2 << 16);
1624
1625 case SLJIT_C_LESS:
1626 case SLJIT_C_FLOAT_LESS:
1627 return (12 << 21) | ((4 + 0) << 16);
1628
1629 case SLJIT_C_GREATER_EQUAL:
1630 case SLJIT_C_FLOAT_GREATER_EQUAL:
1631 return (4 << 21) | ((4 + 0) << 16);
1632
1633 case SLJIT_C_GREATER:
1634 case SLJIT_C_FLOAT_GREATER:
1635 return (12 << 21) | ((4 + 1) << 16);
1636
1637 case SLJIT_C_LESS_EQUAL:
1638 case SLJIT_C_FLOAT_LESS_EQUAL:
1639 return (4 << 21) | ((4 + 1) << 16);
1640
1641 case SLJIT_C_SIG_LESS:
1642 return (12 << 21) | (0 << 16);
1643
1644 case SLJIT_C_SIG_GREATER_EQUAL:
1645 return (4 << 21) | (0 << 16);
1646
1647 case SLJIT_C_SIG_GREATER:
1648 return (12 << 21) | (1 << 16);
1649
1650 case SLJIT_C_SIG_LESS_EQUAL:
1651 return (4 << 21) | (1 << 16);
1652
1653 case SLJIT_C_OVERFLOW:
1654 case SLJIT_C_MUL_OVERFLOW:
1655 return (12 << 21) | (3 << 16);
1656
1657 case SLJIT_C_NOT_OVERFLOW:
1658 case SLJIT_C_MUL_NOT_OVERFLOW:
1659 return (4 << 21) | (3 << 16);
1660
1661 case SLJIT_C_FLOAT_EQUAL:
1662 return (12 << 21) | ((4 + 2) << 16);
1663
1664 case SLJIT_C_FLOAT_NOT_EQUAL:
1665 return (4 << 21) | ((4 + 2) << 16);
1666
1667 case SLJIT_C_FLOAT_NAN:
1668 return (12 << 21) | ((4 + 3) << 16);
1669
1670 case SLJIT_C_FLOAT_NOT_NAN:
1671 return (4 << 21) | ((4 + 3) << 16);
1672
1673 default:
1674 SLJIT_ASSERT(type >= SLJIT_JUMP && type <= SLJIT_CALL3);
1675 return (20 << 21);
1676 }
1677 }
1678
1679 SLJIT_API_FUNC_ATTRIBUTE struct sljit_jump* sljit_emit_jump(struct sljit_compiler *compiler, int type)
1680 {
1681 struct sljit_jump *jump;
1682 sljit_ins bo_bi_flags;
1683
1684 CHECK_ERROR_PTR();
1685 check_sljit_emit_jump(compiler, type);
1686
1687 bo_bi_flags = get_bo_bi_flags(compiler, type & 0xff);
1688 if (!bo_bi_flags)
1689 return NULL;
1690
1691 jump = (struct sljit_jump*)ensure_abuf(compiler, sizeof(struct sljit_jump));
1692 PTR_FAIL_IF(!jump);
1693 set_jump(jump, compiler, type & SLJIT_REWRITABLE_JUMP);
1694 type &= 0xff;
1695
1696 /* In PPC, we don't need to touch the arguments. */
1697 if (type >= SLJIT_JUMP)
1698 jump->flags |= UNCOND_B;
1699
1700 PTR_FAIL_IF(emit_const(compiler, TMP_REG1, 0));
1701 PTR_FAIL_IF(push_inst(compiler, MTCTR | S(TMP_REG1)));
1702 jump->addr = compiler->size;
1703 PTR_FAIL_IF(push_inst(compiler, BCCTR | bo_bi_flags | (type >= SLJIT_FAST_CALL ? 1 : 0)));
1704 return jump;
1705 }
1706
1707 SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_ijump(struct sljit_compiler *compiler, int type, int src, sljit_w srcw)
1708 {
1709 sljit_ins bo_bi_flags;
1710 struct sljit_jump *jump = NULL;
1711 int src_r;
1712
1713 CHECK_ERROR();
1714 check_sljit_emit_ijump(compiler, type, src, srcw);
1715
1716 bo_bi_flags = get_bo_bi_flags(compiler, type);
1717 FAIL_IF(!bo_bi_flags);
1718
1719 if (src >= SLJIT_TEMPORARY_REG1 && src <= SLJIT_NO_REGISTERS)
1720 src_r = src;
1721 else if (src & SLJIT_IMM) {
1722 jump = (struct sljit_jump*)ensure_abuf(compiler, sizeof(struct sljit_jump));
1723 FAIL_IF(!jump);
1724 set_jump(jump, compiler, JUMP_ADDR | UNCOND_B);
1725 jump->u.target = srcw;
1726
1727 FAIL_IF(emit_const(compiler, TMP_REG2, 0));
1728 src_r = TMP_REG2;
1729 }
1730 else {
1731 FAIL_IF(emit_op(compiler, SLJIT_MOV, WORD_DATA, TMP_REG2, 0, TMP_REG1, 0, src, srcw));
1732 src_r = TMP_REG2;
1733 }
1734
1735 FAIL_IF(push_inst(compiler, MTCTR | S(src_r)));
1736 if (jump)
1737 jump->addr = compiler->size;
1738 return push_inst(compiler, BCCTR | bo_bi_flags | (type >= SLJIT_FAST_CALL ? 1 : 0));
1739 }
1740
1741 /* Get a bit from CR, all other bits are zeroed. */
1742 #define GET_CR_BIT(bit, dst) \
1743 FAIL_IF(push_inst(compiler, MFCR | D(dst))); \
1744 FAIL_IF(push_inst(compiler, RLWINM | S(dst) | A(dst) | ((1 + (bit)) << 11) | (31 << 6) | (31 << 1)));
1745
1746 #define INVERT_BIT(dst) \
1747 FAIL_IF(push_inst(compiler, XORI | S(dst) | A(dst) | 0x1));
1748
1749 SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_cond_value(struct sljit_compiler *compiler, int op, int dst, sljit_w dstw, int type)
1750 {
1751 int reg;
1752
1753 CHECK_ERROR();
1754 check_sljit_emit_cond_value(compiler, op, dst, dstw, type);
1755
1756 if (dst == SLJIT_UNUSED)
1757 return SLJIT_SUCCESS;
1758
1759 reg = (op == SLJIT_MOV && dst >= SLJIT_TEMPORARY_REG1 && dst <= SLJIT_NO_REGISTERS) ? dst : TMP_REG2;
1760
1761 switch (type) {
1762 case SLJIT_C_EQUAL:
1763 GET_CR_BIT(2, reg);
1764 break;
1765
1766 case SLJIT_C_NOT_EQUAL:
1767 GET_CR_BIT(2, reg);
1768 INVERT_BIT(reg);
1769 break;
1770
1771 case SLJIT_C_LESS:
1772 case SLJIT_C_FLOAT_LESS:
1773 GET_CR_BIT(4 + 0, reg);
1774 break;
1775
1776 case SLJIT_C_GREATER_EQUAL:
1777 case SLJIT_C_FLOAT_GREATER_EQUAL:
1778 GET_CR_BIT(4 + 0, reg);
1779 INVERT_BIT(reg);
1780 break;
1781
1782 case SLJIT_C_GREATER:
1783 case SLJIT_C_FLOAT_GREATER:
1784 GET_CR_BIT(4 + 1, reg);
1785 break;
1786
1787 case SLJIT_C_LESS_EQUAL:
1788 case SLJIT_C_FLOAT_LESS_EQUAL:
1789 GET_CR_BIT(4 + 1, reg);
1790 INVERT_BIT(reg);
1791 break;
1792
1793 case SLJIT_C_SIG_LESS:
1794 GET_CR_BIT(0, reg);
1795 break;
1796
1797 case SLJIT_C_SIG_GREATER_EQUAL:
1798 GET_CR_BIT(0, reg);
1799 INVERT_BIT(reg);
1800 break;
1801
1802 case SLJIT_C_SIG_GREATER:
1803 GET_CR_BIT(1, reg);
1804 break;
1805
1806 case SLJIT_C_SIG_LESS_EQUAL:
1807 GET_CR_BIT(1, reg);
1808 INVERT_BIT(reg);
1809 break;
1810
1811 case SLJIT_C_OVERFLOW:
1812 case SLJIT_C_MUL_OVERFLOW:
1813 GET_CR_BIT(3, reg);
1814 break;
1815
1816 case SLJIT_C_NOT_OVERFLOW:
1817 case SLJIT_C_MUL_NOT_OVERFLOW:
1818 GET_CR_BIT(3, reg);
1819 INVERT_BIT(reg);
1820 break;
1821
1822 case SLJIT_C_FLOAT_EQUAL:
1823 GET_CR_BIT(4 + 2, reg);
1824 break;
1825
1826 case SLJIT_C_FLOAT_NOT_EQUAL:
1827 GET_CR_BIT(4 + 2, reg);
1828 INVERT_BIT(reg);
1829 break;
1830
1831 case SLJIT_C_FLOAT_NAN:
1832 GET_CR_BIT(4 + 3, reg);
1833 break;
1834
1835 case SLJIT_C_FLOAT_NOT_NAN:
1836 GET_CR_BIT(4 + 3, reg);
1837 INVERT_BIT(reg);
1838 break;
1839
1840 default:
1841 SLJIT_ASSERT_STOP();
1842 break;
1843 }
1844
1845 if (GET_OPCODE(op) == SLJIT_OR)
1846 return emit_op(compiler, GET_OPCODE(op), GET_FLAGS(op) ? ALT_SET_FLAGS : 0, dst, dstw, dst, dstw, TMP_REG2, 0);
1847
1848 if (reg == TMP_REG2)
1849 return emit_op(compiler, SLJIT_MOV, WORD_DATA, dst, dstw, TMP_REG1, 0, TMP_REG2, 0);
1850 return SLJIT_SUCCESS;
1851 }
1852
1853 SLJIT_API_FUNC_ATTRIBUTE struct sljit_const* sljit_emit_const(struct sljit_compiler *compiler, int dst, sljit_w dstw, sljit_w init_value)
1854 {
1855 struct sljit_const *const_;
1856 int reg;
1857
1858 CHECK_ERROR_PTR();
1859 check_sljit_emit_const(compiler, dst, dstw, init_value);
1860
1861 const_ = (struct sljit_const*)ensure_abuf(compiler, sizeof(struct sljit_const));
1862 PTR_FAIL_IF(!const_);
1863 set_const(const_, compiler);
1864
1865 reg = (dst >= SLJIT_TEMPORARY_REG1 && dst <= SLJIT_NO_REGISTERS) ? dst : TMP_REG2;
1866
1867 PTR_FAIL_IF(emit_const(compiler, reg, init_value));
1868
1869 if (dst & SLJIT_MEM)
1870 PTR_FAIL_IF(emit_op(compiler, SLJIT_MOV, WORD_DATA, dst, dstw, TMP_REG1, 0, TMP_REG2, 0));
1871 return const_;
1872 }

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