xref: /PHP-7.2/ext/pcre/pcrelib/sljit/sljitLir.c (revision 8a287c0e)
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 #include "sljitLir.h"
28 
29 #if !(defined SLJIT_STD_MACROS_DEFINED && SLJIT_STD_MACROS_DEFINED)
30 
31 /* These libraries are needed for the macros below. */
32 #include <stdlib.h>
33 #include <string.h>
34 
35 #endif /* SLJIT_STD_MACROS_DEFINED */
36 
37 #define CHECK_ERROR() \
38 	do { \
39 		if (SLJIT_UNLIKELY(compiler->error)) \
40 			return compiler->error; \
41 	} while (0)
42 
43 #define CHECK_ERROR_PTR() \
44 	do { \
45 		if (SLJIT_UNLIKELY(compiler->error)) \
46 			return NULL; \
47 	} while (0)
48 
49 #define FAIL_IF(expr) \
50 	do { \
51 		if (SLJIT_UNLIKELY(expr)) \
52 			return compiler->error; \
53 	} while (0)
54 
55 #define PTR_FAIL_IF(expr) \
56 	do { \
57 		if (SLJIT_UNLIKELY(expr)) \
58 			return NULL; \
59 	} while (0)
60 
61 #define FAIL_IF_NULL(ptr) \
62 	do { \
63 		if (SLJIT_UNLIKELY(!(ptr))) { \
64 			compiler->error = SLJIT_ERR_ALLOC_FAILED; \
65 			return SLJIT_ERR_ALLOC_FAILED; \
66 		} \
67 	} while (0)
68 
69 #define PTR_FAIL_IF_NULL(ptr) \
70 	do { \
71 		if (SLJIT_UNLIKELY(!(ptr))) { \
72 			compiler->error = SLJIT_ERR_ALLOC_FAILED; \
73 			return NULL; \
74 		} \
75 	} while (0)
76 
77 #define PTR_FAIL_WITH_EXEC_IF(ptr) \
78 	do { \
79 		if (SLJIT_UNLIKELY(!(ptr))) { \
80 			compiler->error = SLJIT_ERR_EX_ALLOC_FAILED; \
81 			return NULL; \
82 		} \
83 	} while (0)
84 
85 #if !(defined SLJIT_CONFIG_UNSUPPORTED && SLJIT_CONFIG_UNSUPPORTED)
86 
87 #define VARIABLE_FLAG_SHIFT (10)
88 #define VARIABLE_FLAG_MASK (0x3f << VARIABLE_FLAG_SHIFT)
89 #define GET_FLAG_TYPE(op) ((op) >> VARIABLE_FLAG_SHIFT)
90 
91 #define GET_OPCODE(op) \
92 	((op) & ~(SLJIT_I32_OP | SLJIT_SET_Z | VARIABLE_FLAG_MASK))
93 
94 #define HAS_FLAGS(op) \
95 	((op) & (SLJIT_SET_Z | VARIABLE_FLAG_MASK))
96 
97 #define GET_ALL_FLAGS(op) \
98 	((op) & (SLJIT_I32_OP | SLJIT_SET_Z | VARIABLE_FLAG_MASK))
99 
100 #define TYPE_CAST_NEEDED(op) \
101 	(((op) >= SLJIT_MOV_U8 && (op) <= SLJIT_MOV_S16) || ((op) >= SLJIT_MOVU_U8 && (op) <= SLJIT_MOVU_S16))
102 
103 #define BUF_SIZE	4096
104 
105 #if (defined SLJIT_32BIT_ARCHITECTURE && SLJIT_32BIT_ARCHITECTURE)
106 #define ABUF_SIZE	2048
107 #else
108 #define ABUF_SIZE	4096
109 #endif
110 
111 /* Parameter parsing. */
112 #define REG_MASK		0x3f
113 #define OFFS_REG(reg)		(((reg) >> 8) & REG_MASK)
114 #define OFFS_REG_MASK		(REG_MASK << 8)
115 #define TO_OFFS_REG(reg)	((reg) << 8)
116 /* When reg cannot be unused. */
117 #define FAST_IS_REG(reg)	((reg) <= REG_MASK)
118 /* When reg can be unused. */
119 #define SLOW_IS_REG(reg)	((reg) > 0 && (reg) <= REG_MASK)
120 
121 /* Jump flags. */
122 #define JUMP_LABEL	0x1
123 #define JUMP_ADDR	0x2
124 /* SLJIT_REWRITABLE_JUMP is 0x1000. */
125 
126 #if (defined SLJIT_CONFIG_X86 && SLJIT_CONFIG_X86)
127 #	define PATCH_MB	0x4
128 #	define PATCH_MW	0x8
129 #if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64)
130 #	define PATCH_MD	0x10
131 #endif
132 #endif
133 
134 #if (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5) || (defined SLJIT_CONFIG_ARM_V7 && SLJIT_CONFIG_ARM_V7)
135 #	define IS_BL		0x4
136 #	define PATCH_B		0x8
137 #endif
138 
139 #if (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5)
140 #	define CPOOL_SIZE	512
141 #endif
142 
143 #if (defined SLJIT_CONFIG_ARM_THUMB2 && SLJIT_CONFIG_ARM_THUMB2)
144 #	define IS_COND		0x04
145 #	define IS_BL		0x08
146 	/* conditional + imm8 */
147 #	define PATCH_TYPE1	0x10
148 	/* conditional + imm20 */
149 #	define PATCH_TYPE2	0x20
150 	/* IT + imm24 */
151 #	define PATCH_TYPE3	0x30
152 	/* imm11 */
153 #	define PATCH_TYPE4	0x40
154 	/* imm24 */
155 #	define PATCH_TYPE5	0x50
156 	/* BL + imm24 */
157 #	define PATCH_BL		0x60
158 	/* 0xf00 cc code for branches */
159 #endif
160 
161 #if (defined SLJIT_CONFIG_ARM_64 && SLJIT_CONFIG_ARM_64)
162 #	define IS_COND		0x004
163 #	define IS_CBZ		0x008
164 #	define IS_BL		0x010
165 #	define PATCH_B		0x020
166 #	define PATCH_COND	0x040
167 #	define PATCH_ABS48	0x080
168 #	define PATCH_ABS64	0x100
169 #endif
170 
171 #if (defined SLJIT_CONFIG_PPC && SLJIT_CONFIG_PPC)
172 #	define IS_COND		0x004
173 #	define IS_CALL		0x008
174 #	define PATCH_B		0x010
175 #	define PATCH_ABS_B	0x020
176 #if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
177 #	define PATCH_ABS32	0x040
178 #	define PATCH_ABS48	0x080
179 #endif
180 #	define REMOVE_COND	0x100
181 #endif
182 
183 #if (defined SLJIT_CONFIG_MIPS && SLJIT_CONFIG_MIPS)
184 #	define IS_MOVABLE	0x004
185 #	define IS_JAL		0x008
186 #	define IS_CALL		0x010
187 #	define IS_BIT26_COND	0x020
188 #	define IS_BIT16_COND	0x040
189 
190 #	define IS_COND		(IS_BIT26_COND | IS_BIT16_COND)
191 
192 #	define PATCH_B		0x080
193 #	define PATCH_J		0x100
194 
195 #if (defined SLJIT_CONFIG_MIPS_64 && SLJIT_CONFIG_MIPS_64)
196 #	define PATCH_ABS32	0x200
197 #	define PATCH_ABS48	0x400
198 #endif
199 
200 	/* instruction types */
201 #	define MOVABLE_INS	0
202 	/* 1 - 31 last destination register */
203 	/* no destination (i.e: store) */
204 #	define UNMOVABLE_INS	32
205 	/* FPU status register */
206 #	define FCSR_FCC		33
207 #endif
208 
209 #if (defined SLJIT_CONFIG_TILEGX && SLJIT_CONFIG_TILEGX)
210 #	define IS_JAL		0x04
211 #	define IS_COND		0x08
212 
213 #	define PATCH_B		0x10
214 #	define PATCH_J		0x20
215 #endif
216 
217 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32)
218 #	define IS_MOVABLE	0x04
219 #	define IS_COND		0x08
220 #	define IS_CALL		0x10
221 
222 #	define PATCH_B		0x20
223 #	define PATCH_CALL	0x40
224 
225 	/* instruction types */
226 #	define MOVABLE_INS	0
227 	/* 1 - 31 last destination register */
228 	/* no destination (i.e: store) */
229 #	define UNMOVABLE_INS	32
230 
231 #	define DST_INS_MASK	0xff
232 
233 	/* ICC_SET is the same as SET_FLAGS. */
234 #	define ICC_IS_SET	(1 << 23)
235 #	define FCC_IS_SET	(1 << 24)
236 #endif
237 
238 /* Stack management. */
239 
240 #define GET_SAVED_REGISTERS_SIZE(scratches, saveds, extra) \
241 	(((scratches < SLJIT_NUMBER_OF_SCRATCH_REGISTERS ? 0 : (scratches - SLJIT_NUMBER_OF_SCRATCH_REGISTERS)) + \
242 		(saveds < SLJIT_NUMBER_OF_SAVED_REGISTERS ? saveds : SLJIT_NUMBER_OF_SAVED_REGISTERS) + \
243 		extra) * sizeof(sljit_sw))
244 
245 #define ADJUST_LOCAL_OFFSET(p, i) \
246 	if ((p) == (SLJIT_MEM1(SLJIT_SP))) \
247 		(i) += SLJIT_LOCALS_OFFSET;
248 
249 #endif /* !(defined SLJIT_CONFIG_UNSUPPORTED && SLJIT_CONFIG_UNSUPPORTED) */
250 
251 /* Utils can still be used even if SLJIT_CONFIG_UNSUPPORTED is set. */
252 #include "sljitUtils.c"
253 
254 #if !(defined SLJIT_CONFIG_UNSUPPORTED && SLJIT_CONFIG_UNSUPPORTED)
255 
256 #if (defined SLJIT_EXECUTABLE_ALLOCATOR && SLJIT_EXECUTABLE_ALLOCATOR)
257 
258 #if (defined SLJIT_PROT_EXECUTABLE_ALLOCATOR && SLJIT_PROT_EXECUTABLE_ALLOCATOR)
259 #include "sljitProtExecAllocator.c"
260 #else
261 #include "sljitExecAllocator.c"
262 #endif
263 
264 #endif
265 
266 #if (defined SLJIT_PROT_EXECUTABLE_ALLOCATOR && SLJIT_PROT_EXECUTABLE_ALLOCATOR)
267 #define SLJIT_ADD_EXEC_OFFSET(ptr, exec_offset) ((sljit_u8 *)(ptr) + (exec_offset))
268 #else
269 #define SLJIT_ADD_EXEC_OFFSET(ptr, exec_offset) ((sljit_u8 *)(ptr))
270 #endif
271 
272 /* Argument checking features. */
273 
274 #if (defined SLJIT_ARGUMENT_CHECKS && SLJIT_ARGUMENT_CHECKS)
275 
276 /* Returns with error when an invalid argument is passed. */
277 
278 #define CHECK_ARGUMENT(x) \
279 	do { \
280 		if (SLJIT_UNLIKELY(!(x))) \
281 			return 1; \
282 	} while (0)
283 
284 #define CHECK_RETURN_TYPE sljit_s32
285 #define CHECK_RETURN_OK return 0
286 
287 #define CHECK(x) \
288 	do { \
289 		if (SLJIT_UNLIKELY(x)) { \
290 			compiler->error = SLJIT_ERR_BAD_ARGUMENT; \
291 			return SLJIT_ERR_BAD_ARGUMENT; \
292 		} \
293 	} while (0)
294 
295 #define CHECK_PTR(x) \
296 	do { \
297 		if (SLJIT_UNLIKELY(x)) { \
298 			compiler->error = SLJIT_ERR_BAD_ARGUMENT; \
299 			return NULL; \
300 		} \
301 	} while (0)
302 
303 #define CHECK_REG_INDEX(x) \
304 	do { \
305 		if (SLJIT_UNLIKELY(x)) { \
306 			return -2; \
307 		} \
308 	} while (0)
309 
310 #elif (defined SLJIT_DEBUG && SLJIT_DEBUG)
311 
312 /* Assertion failure occures if an invalid argument is passed. */
313 #undef SLJIT_ARGUMENT_CHECKS
314 #define SLJIT_ARGUMENT_CHECKS 1
315 
316 #define CHECK_ARGUMENT(x) SLJIT_ASSERT(x)
317 #define CHECK_RETURN_TYPE void
318 #define CHECK_RETURN_OK return
319 #define CHECK(x) x
320 #define CHECK_PTR(x) x
321 #define CHECK_REG_INDEX(x) x
322 
323 #elif (defined SLJIT_VERBOSE && SLJIT_VERBOSE)
324 
325 /* Arguments are not checked. */
326 #define CHECK_RETURN_TYPE void
327 #define CHECK_RETURN_OK return
328 #define CHECK(x) x
329 #define CHECK_PTR(x) x
330 #define CHECK_REG_INDEX(x) x
331 
332 #else
333 
334 /* Arguments are not checked. */
335 #define CHECK(x)
336 #define CHECK_PTR(x)
337 #define CHECK_REG_INDEX(x)
338 
339 #endif /* SLJIT_ARGUMENT_CHECKS */
340 
341 /* --------------------------------------------------------------------- */
342 /*  Public functions                                                     */
343 /* --------------------------------------------------------------------- */
344 
345 #if (defined SLJIT_CONFIG_X86 && SLJIT_CONFIG_X86)
346 #define SLJIT_NEEDS_COMPILER_INIT 1
347 static sljit_s32 compiler_initialized = 0;
348 /* A thread safe initialization. */
349 static void init_compiler(void);
350 #endif
351 
sljit_create_compiler(void * allocator_data)352 SLJIT_API_FUNC_ATTRIBUTE struct sljit_compiler* sljit_create_compiler(void *allocator_data)
353 {
354 	struct sljit_compiler *compiler = (struct sljit_compiler*)SLJIT_MALLOC(sizeof(struct sljit_compiler), allocator_data);
355 	if (!compiler)
356 		return NULL;
357 	SLJIT_ZEROMEM(compiler, sizeof(struct sljit_compiler));
358 
359 	SLJIT_COMPILE_ASSERT(
360 		sizeof(sljit_s8) == 1 && sizeof(sljit_u8) == 1
361 		&& sizeof(sljit_s16) == 2 && sizeof(sljit_u16) == 2
362 		&& sizeof(sljit_s32) == 4 && sizeof(sljit_u32) == 4
363 		&& (sizeof(sljit_p) == 4 || sizeof(sljit_p) == 8)
364 		&& sizeof(sljit_p) <= sizeof(sljit_sw)
365 		&& (sizeof(sljit_sw) == 4 || sizeof(sljit_sw) == 8)
366 		&& (sizeof(sljit_uw) == 4 || sizeof(sljit_uw) == 8),
367 		invalid_integer_types);
368 	SLJIT_COMPILE_ASSERT(SLJIT_I32_OP == SLJIT_F32_OP,
369 		int_op_and_single_op_must_be_the_same);
370 	SLJIT_COMPILE_ASSERT(SLJIT_REWRITABLE_JUMP != SLJIT_F32_OP,
371 		rewritable_jump_and_single_op_must_not_be_the_same);
372 	SLJIT_COMPILE_ASSERT(!(SLJIT_EQUAL & 0x1) && !(SLJIT_LESS & 0x1) && !(SLJIT_EQUAL_F64 & 0x1) && !(SLJIT_JUMP & 0x1),
373 		conditional_flags_must_be_even_numbers);
374 
375 	/* Only the non-zero members must be set. */
376 	compiler->error = SLJIT_SUCCESS;
377 
378 	compiler->allocator_data = allocator_data;
379 	compiler->buf = (struct sljit_memory_fragment*)SLJIT_MALLOC(BUF_SIZE, allocator_data);
380 	compiler->abuf = (struct sljit_memory_fragment*)SLJIT_MALLOC(ABUF_SIZE, allocator_data);
381 
382 	if (!compiler->buf || !compiler->abuf) {
383 		if (compiler->buf)
384 			SLJIT_FREE(compiler->buf, allocator_data);
385 		if (compiler->abuf)
386 			SLJIT_FREE(compiler->abuf, allocator_data);
387 		SLJIT_FREE(compiler, allocator_data);
388 		return NULL;
389 	}
390 
391 	compiler->buf->next = NULL;
392 	compiler->buf->used_size = 0;
393 	compiler->abuf->next = NULL;
394 	compiler->abuf->used_size = 0;
395 
396 	compiler->scratches = -1;
397 	compiler->saveds = -1;
398 	compiler->fscratches = -1;
399 	compiler->fsaveds = -1;
400 	compiler->local_size = -1;
401 
402 #if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32)
403 	compiler->args = -1;
404 #endif
405 
406 #if (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5)
407 	compiler->cpool = (sljit_uw*)SLJIT_MALLOC(CPOOL_SIZE * sizeof(sljit_uw)
408 		+ CPOOL_SIZE * sizeof(sljit_u8), allocator_data);
409 	if (!compiler->cpool) {
410 		SLJIT_FREE(compiler->buf, allocator_data);
411 		SLJIT_FREE(compiler->abuf, allocator_data);
412 		SLJIT_FREE(compiler, allocator_data);
413 		return NULL;
414 	}
415 	compiler->cpool_unique = (sljit_u8*)(compiler->cpool + CPOOL_SIZE);
416 	compiler->cpool_diff = 0xffffffff;
417 #endif
418 
419 #if (defined SLJIT_CONFIG_MIPS && SLJIT_CONFIG_MIPS)
420 	compiler->delay_slot = UNMOVABLE_INS;
421 #endif
422 
423 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32)
424 	compiler->delay_slot = UNMOVABLE_INS;
425 #endif
426 
427 #if (defined SLJIT_NEEDS_COMPILER_INIT && SLJIT_NEEDS_COMPILER_INIT)
428 	if (!compiler_initialized) {
429 		init_compiler();
430 		compiler_initialized = 1;
431 	}
432 #endif
433 
434 	return compiler;
435 }
436 
sljit_free_compiler(struct sljit_compiler * compiler)437 SLJIT_API_FUNC_ATTRIBUTE void sljit_free_compiler(struct sljit_compiler *compiler)
438 {
439 	struct sljit_memory_fragment *buf;
440 	struct sljit_memory_fragment *curr;
441 	void *allocator_data = compiler->allocator_data;
442 	SLJIT_UNUSED_ARG(allocator_data);
443 
444 	buf = compiler->buf;
445 	while (buf) {
446 		curr = buf;
447 		buf = buf->next;
448 		SLJIT_FREE(curr, allocator_data);
449 	}
450 
451 	buf = compiler->abuf;
452 	while (buf) {
453 		curr = buf;
454 		buf = buf->next;
455 		SLJIT_FREE(curr, allocator_data);
456 	}
457 
458 #if (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5)
459 	SLJIT_FREE(compiler->cpool, allocator_data);
460 #endif
461 	SLJIT_FREE(compiler, allocator_data);
462 }
463 
sljit_set_compiler_memory_error(struct sljit_compiler * compiler)464 SLJIT_API_FUNC_ATTRIBUTE void sljit_set_compiler_memory_error(struct sljit_compiler *compiler)
465 {
466 	if (compiler->error == SLJIT_SUCCESS)
467 		compiler->error = SLJIT_ERR_ALLOC_FAILED;
468 }
469 
470 #if (defined SLJIT_CONFIG_ARM_THUMB2 && SLJIT_CONFIG_ARM_THUMB2)
sljit_free_code(void * code)471 SLJIT_API_FUNC_ATTRIBUTE void sljit_free_code(void* code)
472 {
473 	/* Remove thumb mode flag. */
474 	SLJIT_FREE_EXEC((void*)((sljit_uw)code & ~0x1));
475 }
476 #elif (defined SLJIT_INDIRECT_CALL && SLJIT_INDIRECT_CALL)
sljit_free_code(void * code)477 SLJIT_API_FUNC_ATTRIBUTE void sljit_free_code(void* code)
478 {
479 	/* Resolve indirection. */
480 	code = (void*)(*(sljit_uw*)code);
481 	SLJIT_FREE_EXEC(code);
482 }
483 #else
sljit_free_code(void * code)484 SLJIT_API_FUNC_ATTRIBUTE void sljit_free_code(void* code)
485 {
486 	SLJIT_FREE_EXEC(code);
487 }
488 #endif
489 
sljit_set_label(struct sljit_jump * jump,struct sljit_label * label)490 SLJIT_API_FUNC_ATTRIBUTE void sljit_set_label(struct sljit_jump *jump, struct sljit_label* label)
491 {
492 	if (SLJIT_LIKELY(!!jump) && SLJIT_LIKELY(!!label)) {
493 		jump->flags &= ~JUMP_ADDR;
494 		jump->flags |= JUMP_LABEL;
495 		jump->u.label = label;
496 	}
497 }
498 
sljit_set_target(struct sljit_jump * jump,sljit_uw target)499 SLJIT_API_FUNC_ATTRIBUTE void sljit_set_target(struct sljit_jump *jump, sljit_uw target)
500 {
501 	if (SLJIT_LIKELY(!!jump)) {
502 		jump->flags &= ~JUMP_LABEL;
503 		jump->flags |= JUMP_ADDR;
504 		jump->u.target = target;
505 	}
506 }
507 
sljit_set_current_flags(struct sljit_compiler * compiler,sljit_s32 current_flags)508 SLJIT_API_FUNC_ATTRIBUTE void sljit_set_current_flags(struct sljit_compiler *compiler, sljit_s32 current_flags)
509 {
510 	SLJIT_UNUSED_ARG(compiler);
511 	SLJIT_UNUSED_ARG(current_flags);
512 
513 #if (defined SLJIT_ARGUMENT_CHECKS && SLJIT_ARGUMENT_CHECKS)
514 	if ((current_flags & ~(VARIABLE_FLAG_MASK | SLJIT_I32_OP | SLJIT_SET_Z)) == 0) {
515 		compiler->last_flags = GET_FLAG_TYPE(current_flags) | (current_flags & (SLJIT_I32_OP | SLJIT_SET_Z));
516 	}
517 #endif
518 }
519 
520 /* --------------------------------------------------------------------- */
521 /*  Private functions                                                    */
522 /* --------------------------------------------------------------------- */
523 
ensure_buf(struct sljit_compiler * compiler,sljit_uw size)524 static void* ensure_buf(struct sljit_compiler *compiler, sljit_uw size)
525 {
526 	sljit_u8 *ret;
527 	struct sljit_memory_fragment *new_frag;
528 
529 	SLJIT_ASSERT(size <= 256);
530 	if (compiler->buf->used_size + size <= (BUF_SIZE - (sljit_uw)SLJIT_OFFSETOF(struct sljit_memory_fragment, memory))) {
531 		ret = compiler->buf->memory + compiler->buf->used_size;
532 		compiler->buf->used_size += size;
533 		return ret;
534 	}
535 	new_frag = (struct sljit_memory_fragment*)SLJIT_MALLOC(BUF_SIZE, compiler->allocator_data);
536 	PTR_FAIL_IF_NULL(new_frag);
537 	new_frag->next = compiler->buf;
538 	compiler->buf = new_frag;
539 	new_frag->used_size = size;
540 	return new_frag->memory;
541 }
542 
ensure_abuf(struct sljit_compiler * compiler,sljit_uw size)543 static void* ensure_abuf(struct sljit_compiler *compiler, sljit_uw size)
544 {
545 	sljit_u8 *ret;
546 	struct sljit_memory_fragment *new_frag;
547 
548 	SLJIT_ASSERT(size <= 256);
549 	if (compiler->abuf->used_size + size <= (ABUF_SIZE - (sljit_uw)SLJIT_OFFSETOF(struct sljit_memory_fragment, memory))) {
550 		ret = compiler->abuf->memory + compiler->abuf->used_size;
551 		compiler->abuf->used_size += size;
552 		return ret;
553 	}
554 	new_frag = (struct sljit_memory_fragment*)SLJIT_MALLOC(ABUF_SIZE, compiler->allocator_data);
555 	PTR_FAIL_IF_NULL(new_frag);
556 	new_frag->next = compiler->abuf;
557 	compiler->abuf = new_frag;
558 	new_frag->used_size = size;
559 	return new_frag->memory;
560 }
561 
sljit_alloc_memory(struct sljit_compiler * compiler,sljit_s32 size)562 SLJIT_API_FUNC_ATTRIBUTE void* sljit_alloc_memory(struct sljit_compiler *compiler, sljit_s32 size)
563 {
564 	CHECK_ERROR_PTR();
565 
566 #if (defined SLJIT_64BIT_ARCHITECTURE && SLJIT_64BIT_ARCHITECTURE)
567 	if (size <= 0 || size > 128)
568 		return NULL;
569 	size = (size + 7) & ~7;
570 #else
571 	if (size <= 0 || size > 64)
572 		return NULL;
573 	size = (size + 3) & ~3;
574 #endif
575 	return ensure_abuf(compiler, size);
576 }
577 
reverse_buf(struct sljit_compiler * compiler)578 static SLJIT_INLINE void reverse_buf(struct sljit_compiler *compiler)
579 {
580 	struct sljit_memory_fragment *buf = compiler->buf;
581 	struct sljit_memory_fragment *prev = NULL;
582 	struct sljit_memory_fragment *tmp;
583 
584 	do {
585 		tmp = buf->next;
586 		buf->next = prev;
587 		prev = buf;
588 		buf = tmp;
589 	} while (buf != NULL);
590 
591 	compiler->buf = prev;
592 }
593 
set_emit_enter(struct sljit_compiler * compiler,sljit_s32 options,sljit_s32 args,sljit_s32 scratches,sljit_s32 saveds,sljit_s32 fscratches,sljit_s32 fsaveds,sljit_s32 local_size)594 static SLJIT_INLINE void set_emit_enter(struct sljit_compiler *compiler,
595 	sljit_s32 options, sljit_s32 args, sljit_s32 scratches, sljit_s32 saveds,
596 	sljit_s32 fscratches, sljit_s32 fsaveds, sljit_s32 local_size)
597 {
598 	SLJIT_UNUSED_ARG(args);
599 	SLJIT_UNUSED_ARG(local_size);
600 
601 	compiler->options = options;
602 	compiler->scratches = scratches;
603 	compiler->saveds = saveds;
604 	compiler->fscratches = fscratches;
605 	compiler->fsaveds = fsaveds;
606 #if (defined SLJIT_ARGUMENT_CHECKS && SLJIT_ARGUMENT_CHECKS)
607 	compiler->logical_local_size = local_size;
608 #endif
609 }
610 
set_set_context(struct sljit_compiler * compiler,sljit_s32 options,sljit_s32 args,sljit_s32 scratches,sljit_s32 saveds,sljit_s32 fscratches,sljit_s32 fsaveds,sljit_s32 local_size)611 static SLJIT_INLINE void set_set_context(struct sljit_compiler *compiler,
612 	sljit_s32 options, sljit_s32 args, sljit_s32 scratches, sljit_s32 saveds,
613 	sljit_s32 fscratches, sljit_s32 fsaveds, sljit_s32 local_size)
614 {
615 	SLJIT_UNUSED_ARG(args);
616 	SLJIT_UNUSED_ARG(local_size);
617 
618 	compiler->options = options;
619 	compiler->scratches = scratches;
620 	compiler->saveds = saveds;
621 	compiler->fscratches = fscratches;
622 	compiler->fsaveds = fsaveds;
623 #if (defined SLJIT_ARGUMENT_CHECKS && SLJIT_ARGUMENT_CHECKS)
624 	compiler->logical_local_size = local_size;
625 #endif
626 }
627 
set_label(struct sljit_label * label,struct sljit_compiler * compiler)628 static SLJIT_INLINE void set_label(struct sljit_label *label, struct sljit_compiler *compiler)
629 {
630 	label->next = NULL;
631 	label->size = compiler->size;
632 	if (compiler->last_label)
633 		compiler->last_label->next = label;
634 	else
635 		compiler->labels = label;
636 	compiler->last_label = label;
637 }
638 
set_jump(struct sljit_jump * jump,struct sljit_compiler * compiler,sljit_s32 flags)639 static SLJIT_INLINE void set_jump(struct sljit_jump *jump, struct sljit_compiler *compiler, sljit_s32 flags)
640 {
641 	jump->next = NULL;
642 	jump->flags = flags;
643 	if (compiler->last_jump)
644 		compiler->last_jump->next = jump;
645 	else
646 		compiler->jumps = jump;
647 	compiler->last_jump = jump;
648 }
649 
set_const(struct sljit_const * const_,struct sljit_compiler * compiler)650 static SLJIT_INLINE void set_const(struct sljit_const *const_, struct sljit_compiler *compiler)
651 {
652 	const_->next = NULL;
653 	const_->addr = compiler->size;
654 	if (compiler->last_const)
655 		compiler->last_const->next = const_;
656 	else
657 		compiler->consts = const_;
658 	compiler->last_const = const_;
659 }
660 
661 #define ADDRESSING_DEPENDS_ON(exp, reg) \
662 	(((exp) & SLJIT_MEM) && (((exp) & REG_MASK) == reg || OFFS_REG(exp) == reg))
663 
664 #if (defined SLJIT_ARGUMENT_CHECKS && SLJIT_ARGUMENT_CHECKS)
665 
666 #define FUNCTION_CHECK_IS_REG(r) \
667 	(((r) >= SLJIT_R0 && (r) < (SLJIT_R0 + compiler->scratches)) || \
668 	((r) > (SLJIT_S0 - compiler->saveds) && (r) <= SLJIT_S0))
669 
670 #define FUNCTION_CHECK_IS_REG_OR_UNUSED(r) \
671 	((r) == SLJIT_UNUSED || \
672 	((r) >= SLJIT_R0 && (r) < (SLJIT_R0 + compiler->scratches)) || \
673 	((r) > (SLJIT_S0 - compiler->saveds) && (r) <= SLJIT_S0))
674 
675 #if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32)
676 #define CHECK_NOT_VIRTUAL_REGISTER(p) \
677 	CHECK_ARGUMENT((p) < SLJIT_R3 || (p) > SLJIT_R6);
678 #else
679 #define CHECK_NOT_VIRTUAL_REGISTER(p)
680 #endif
681 
682 #define FUNCTION_CHECK_SRC(p, i) \
683 	CHECK_ARGUMENT(compiler->scratches != -1 && compiler->saveds != -1); \
684 	if (FUNCTION_CHECK_IS_REG(p)) \
685 		CHECK_ARGUMENT((i) == 0); \
686 	else if ((p) == SLJIT_IMM) \
687 		; \
688 	else if ((p) == (SLJIT_MEM1(SLJIT_SP))) \
689 		CHECK_ARGUMENT((i) >= 0 && (i) < compiler->logical_local_size); \
690 	else { \
691 		CHECK_ARGUMENT((p) & SLJIT_MEM); \
692 		CHECK_ARGUMENT(FUNCTION_CHECK_IS_REG_OR_UNUSED((p) & REG_MASK)); \
693 		CHECK_NOT_VIRTUAL_REGISTER((p) & REG_MASK); \
694 		if ((p) & OFFS_REG_MASK) { \
695 			CHECK_ARGUMENT(((p) & REG_MASK) != SLJIT_UNUSED); \
696 			CHECK_ARGUMENT(FUNCTION_CHECK_IS_REG(OFFS_REG(p))); \
697 			CHECK_NOT_VIRTUAL_REGISTER(OFFS_REG(p)); \
698 			CHECK_ARGUMENT(!((i) & ~0x3)); \
699 		} \
700 		CHECK_ARGUMENT(!((p) & ~(SLJIT_MEM | REG_MASK | OFFS_REG_MASK))); \
701 	}
702 
703 #define FUNCTION_CHECK_DST(p, i, unused) \
704 	CHECK_ARGUMENT(compiler->scratches != -1 && compiler->saveds != -1); \
705 	if (FUNCTION_CHECK_IS_REG(p) || ((unused) && (p) == SLJIT_UNUSED)) \
706 		CHECK_ARGUMENT((i) == 0); \
707 	else if ((p) == (SLJIT_MEM1(SLJIT_SP))) \
708 		CHECK_ARGUMENT((i) >= 0 && (i) < compiler->logical_local_size); \
709 	else { \
710 		CHECK_ARGUMENT((p) & SLJIT_MEM); \
711 		CHECK_ARGUMENT(FUNCTION_CHECK_IS_REG_OR_UNUSED((p) & REG_MASK)); \
712 		CHECK_NOT_VIRTUAL_REGISTER((p) & REG_MASK); \
713 		if ((p) & OFFS_REG_MASK) { \
714 			CHECK_ARGUMENT(((p) & REG_MASK) != SLJIT_UNUSED); \
715 			CHECK_ARGUMENT(FUNCTION_CHECK_IS_REG(OFFS_REG(p))); \
716 			CHECK_NOT_VIRTUAL_REGISTER(OFFS_REG(p)); \
717 			CHECK_ARGUMENT(!((i) & ~0x3)); \
718 		} \
719 		CHECK_ARGUMENT(!((p) & ~(SLJIT_MEM | REG_MASK | OFFS_REG_MASK))); \
720 	}
721 
722 #define FUNCTION_FCHECK(p, i) \
723 	CHECK_ARGUMENT(compiler->fscratches != -1 && compiler->fsaveds != -1); \
724 	if (((p) >= SLJIT_FR0 && (p) < (SLJIT_FR0 + compiler->fscratches)) || \
725 			((p) > (SLJIT_FS0 - compiler->fsaveds) && (p) <= SLJIT_FS0)) \
726 		CHECK_ARGUMENT(i == 0); \
727 	else if ((p) == (SLJIT_MEM1(SLJIT_SP))) \
728 		CHECK_ARGUMENT((i) >= 0 && (i) < compiler->logical_local_size); \
729 	else { \
730 		CHECK_ARGUMENT((p) & SLJIT_MEM); \
731 		CHECK_ARGUMENT(FUNCTION_CHECK_IS_REG_OR_UNUSED((p) & REG_MASK)); \
732 		CHECK_NOT_VIRTUAL_REGISTER((p) & REG_MASK); \
733 		if ((p) & OFFS_REG_MASK) { \
734 			CHECK_ARGUMENT(((p) & REG_MASK) != SLJIT_UNUSED); \
735 			CHECK_ARGUMENT(FUNCTION_CHECK_IS_REG(OFFS_REG(p))); \
736 			CHECK_NOT_VIRTUAL_REGISTER(OFFS_REG(p)); \
737 			CHECK_ARGUMENT(((p) & OFFS_REG_MASK) != TO_OFFS_REG(SLJIT_SP) && !(i & ~0x3)); \
738 		} \
739 		CHECK_ARGUMENT(!((p) & ~(SLJIT_MEM | REG_MASK | OFFS_REG_MASK))); \
740 	}
741 
742 #endif /* SLJIT_ARGUMENT_CHECKS */
743 
744 #if (defined SLJIT_VERBOSE && SLJIT_VERBOSE)
745 
sljit_compiler_verbose(struct sljit_compiler * compiler,FILE * verbose)746 SLJIT_API_FUNC_ATTRIBUTE void sljit_compiler_verbose(struct sljit_compiler *compiler, FILE* verbose)
747 {
748 	compiler->verbose = verbose;
749 }
750 
751 #if (defined SLJIT_64BIT_ARCHITECTURE && SLJIT_64BIT_ARCHITECTURE)
752 #ifdef _WIN64
753 #	define SLJIT_PRINT_D	"I64"
754 #else
755 #	define SLJIT_PRINT_D	"l"
756 #endif
757 #else
758 #	define SLJIT_PRINT_D	""
759 #endif
760 
761 #define sljit_verbose_reg(compiler, r) \
762 	do { \
763 		if ((r) < (SLJIT_R0 + compiler->scratches)) \
764 			fprintf(compiler->verbose, "r%d", (r) - SLJIT_R0); \
765 		else if ((r) != SLJIT_SP) \
766 			fprintf(compiler->verbose, "s%d", SLJIT_NUMBER_OF_REGISTERS - (r)); \
767 		else \
768 			fprintf(compiler->verbose, "sp"); \
769 	} while (0)
770 
771 #define sljit_verbose_param(compiler, p, i) \
772 	if ((p) & SLJIT_IMM) \
773 		fprintf(compiler->verbose, "#%" SLJIT_PRINT_D "d", (i)); \
774 	else if ((p) & SLJIT_MEM) { \
775 		if ((p) & REG_MASK) { \
776 			fputc('[', compiler->verbose); \
777 			sljit_verbose_reg(compiler, (p) & REG_MASK); \
778 			if ((p) & OFFS_REG_MASK) { \
779 				fprintf(compiler->verbose, " + "); \
780 				sljit_verbose_reg(compiler, OFFS_REG(p)); \
781 				if (i) \
782 					fprintf(compiler->verbose, " * %d", 1 << (i)); \
783 			} \
784 			else if (i) \
785 				fprintf(compiler->verbose, " + %" SLJIT_PRINT_D "d", (i)); \
786 			fputc(']', compiler->verbose); \
787 		} \
788 		else \
789 			fprintf(compiler->verbose, "[#%" SLJIT_PRINT_D "d]", (i)); \
790 	} else if (p) \
791 		sljit_verbose_reg(compiler, p); \
792 	else \
793 		fprintf(compiler->verbose, "unused");
794 
795 #define sljit_verbose_fparam(compiler, p, i) \
796 	if ((p) & SLJIT_MEM) { \
797 		if ((p) & REG_MASK) { \
798 			fputc('[', compiler->verbose); \
799 			sljit_verbose_reg(compiler, (p) & REG_MASK); \
800 			if ((p) & OFFS_REG_MASK) { \
801 				fprintf(compiler->verbose, " + "); \
802 				sljit_verbose_reg(compiler, OFFS_REG(p)); \
803 				if (i) \
804 					fprintf(compiler->verbose, "%d", 1 << (i)); \
805 			} \
806 			else if (i) \
807 				fprintf(compiler->verbose, "%" SLJIT_PRINT_D "d", (i)); \
808 			fputc(']', compiler->verbose); \
809 		} \
810 		else \
811 			fprintf(compiler->verbose, "[#%" SLJIT_PRINT_D "d]", (i)); \
812 	} \
813 	else { \
814 		if ((p) < (SLJIT_FR0 + compiler->fscratches)) \
815 			fprintf(compiler->verbose, "fr%d", (p) - SLJIT_FR0); \
816 		else \
817 			fprintf(compiler->verbose, "fs%d", SLJIT_NUMBER_OF_FLOAT_REGISTERS - (p)); \
818 	}
819 
820 static const char* op0_names[] = {
821 	(char*)"breakpoint", (char*)"nop", (char*)"lmul.uw", (char*)"lmul.sw",
822 	(char*)"divmod.u", (char*)"divmod.s", (char*)"div.u", (char*)"div.s"
823 };
824 
825 static const char* op1_names[] = {
826 	(char*)"", (char*)".u8", (char*)".s8", (char*)".u16",
827 	(char*)".s16", (char*)".u32", (char*)".s32", (char*)".p",
828 	(char*)"", (char*)".u8", (char*)".s8", (char*)".u16",
829 	(char*)".s16", (char*)".u32", (char*)".s32", (char*)".p",
830 	(char*)"not", (char*)"neg", (char*)"clz",
831 };
832 
833 static const char* op2_names[] = {
834 	(char*)"add", (char*)"addc", (char*)"sub", (char*)"subc",
835 	(char*)"mul", (char*)"and", (char*)"or", (char*)"xor",
836 	(char*)"shl", (char*)"lshr", (char*)"ashr",
837 };
838 
839 static const char* fop1_names[] = {
840 	(char*)"mov", (char*)"conv", (char*)"conv", (char*)"conv",
841 	(char*)"conv", (char*)"conv", (char*)"cmp", (char*)"neg",
842 	(char*)"abs",
843 };
844 
845 static const char* fop2_names[] = {
846 	(char*)"add", (char*)"sub", (char*)"mul", (char*)"div"
847 };
848 
849 #define JUMP_POSTFIX(type) \
850 	((type & 0xff) <= SLJIT_MUL_NOT_OVERFLOW ? ((type & SLJIT_I32_OP) ? "32" : "") \
851 	: ((type & 0xff) <= SLJIT_ORDERED_F64 ? ((type & SLJIT_F32_OP) ? ".f32" : ".f64") : ""))
852 
853 static char* jump_names[] = {
854 	(char*)"equal", (char*)"not_equal",
855 	(char*)"less", (char*)"greater_equal",
856 	(char*)"greater", (char*)"less_equal",
857 	(char*)"sig_less", (char*)"sig_greater_equal",
858 	(char*)"sig_greater", (char*)"sig_less_equal",
859 	(char*)"overflow", (char*)"not_overflow",
860 	(char*)"mul_overflow", (char*)"mul_not_overflow",
861 	(char*)"carry", (char*)"",
862 	(char*)"equal", (char*)"not_equal",
863 	(char*)"less", (char*)"greater_equal",
864 	(char*)"greater", (char*)"less_equal",
865 	(char*)"unordered", (char*)"ordered",
866 	(char*)"jump", (char*)"fast_call",
867 	(char*)"call0", (char*)"call1", (char*)"call2", (char*)"call3"
868 };
869 
870 #endif /* SLJIT_VERBOSE */
871 
872 /* --------------------------------------------------------------------- */
873 /*  Arch dependent                                                       */
874 /* --------------------------------------------------------------------- */
875 
876 #if (defined SLJIT_ARGUMENT_CHECKS && SLJIT_ARGUMENT_CHECKS) \
877 	|| (defined SLJIT_VERBOSE && SLJIT_VERBOSE)
878 
check_sljit_generate_code(struct sljit_compiler * compiler)879 static SLJIT_INLINE CHECK_RETURN_TYPE check_sljit_generate_code(struct sljit_compiler *compiler)
880 {
881 #if (defined SLJIT_ARGUMENT_CHECKS && SLJIT_ARGUMENT_CHECKS)
882 	struct sljit_jump *jump;
883 #endif
884 
885 	SLJIT_UNUSED_ARG(compiler);
886 
887 #if (defined SLJIT_ARGUMENT_CHECKS && SLJIT_ARGUMENT_CHECKS)
888 	CHECK_ARGUMENT(compiler->size > 0);
889 	jump = compiler->jumps;
890 	while (jump) {
891 		/* All jumps have target. */
892 		CHECK_ARGUMENT(jump->flags & (JUMP_LABEL | JUMP_ADDR));
893 		jump = jump->next;
894 	}
895 #endif
896 	CHECK_RETURN_OK;
897 }
898 
check_sljit_emit_enter(struct sljit_compiler * compiler,sljit_s32 options,sljit_s32 args,sljit_s32 scratches,sljit_s32 saveds,sljit_s32 fscratches,sljit_s32 fsaveds,sljit_s32 local_size)899 static SLJIT_INLINE CHECK_RETURN_TYPE check_sljit_emit_enter(struct sljit_compiler *compiler,
900 	sljit_s32 options, sljit_s32 args, sljit_s32 scratches, sljit_s32 saveds,
901 	sljit_s32 fscratches, sljit_s32 fsaveds, sljit_s32 local_size)
902 {
903 	SLJIT_UNUSED_ARG(compiler);
904 
905 #if (defined SLJIT_ARGUMENT_CHECKS && SLJIT_ARGUMENT_CHECKS)
906 	CHECK_ARGUMENT(!(options & ~SLJIT_F64_ALIGNMENT));
907 	CHECK_ARGUMENT(args >= 0 && args <= 3);
908 	CHECK_ARGUMENT(scratches >= 0 && scratches <= SLJIT_NUMBER_OF_REGISTERS);
909 	CHECK_ARGUMENT(saveds >= 0 && saveds <= SLJIT_NUMBER_OF_REGISTERS);
910 	CHECK_ARGUMENT(scratches + saveds <= SLJIT_NUMBER_OF_REGISTERS);
911 	CHECK_ARGUMENT(args <= saveds);
912 	CHECK_ARGUMENT(fscratches >= 0 && fscratches <= SLJIT_NUMBER_OF_FLOAT_REGISTERS);
913 	CHECK_ARGUMENT(fsaveds >= 0 && fsaveds <= SLJIT_NUMBER_OF_FLOAT_REGISTERS);
914 	CHECK_ARGUMENT(fscratches + fsaveds <= SLJIT_NUMBER_OF_FLOAT_REGISTERS);
915 	CHECK_ARGUMENT(local_size >= 0 && local_size <= SLJIT_MAX_LOCAL_SIZE);
916 	compiler->last_flags = 0;
917 #endif
918 #if (defined SLJIT_VERBOSE && SLJIT_VERBOSE)
919 	if (SLJIT_UNLIKELY(!!compiler->verbose))
920 		fprintf(compiler->verbose, "  enter options:none args:%d scratches:%d saveds:%d fscratches:%d fsaveds:%d local_size:%d\n",
921 			args, scratches, saveds, fscratches, fsaveds, local_size);
922 #endif
923 	CHECK_RETURN_OK;
924 }
925 
check_sljit_set_context(struct sljit_compiler * compiler,sljit_s32 options,sljit_s32 args,sljit_s32 scratches,sljit_s32 saveds,sljit_s32 fscratches,sljit_s32 fsaveds,sljit_s32 local_size)926 static SLJIT_INLINE CHECK_RETURN_TYPE check_sljit_set_context(struct sljit_compiler *compiler,
927 	sljit_s32 options, sljit_s32 args, sljit_s32 scratches, sljit_s32 saveds,
928 	sljit_s32 fscratches, sljit_s32 fsaveds, sljit_s32 local_size)
929 {
930 #if (defined SLJIT_ARGUMENT_CHECKS && SLJIT_ARGUMENT_CHECKS)
931 	CHECK_ARGUMENT(!(options & ~SLJIT_F64_ALIGNMENT));
932 	CHECK_ARGUMENT(args >= 0 && args <= 3);
933 	CHECK_ARGUMENT(scratches >= 0 && scratches <= SLJIT_NUMBER_OF_REGISTERS);
934 	CHECK_ARGUMENT(saveds >= 0 && saveds <= SLJIT_NUMBER_OF_REGISTERS);
935 	CHECK_ARGUMENT(scratches + saveds <= SLJIT_NUMBER_OF_REGISTERS);
936 	CHECK_ARGUMENT(args <= saveds);
937 	CHECK_ARGUMENT(fscratches >= 0 && fscratches <= SLJIT_NUMBER_OF_FLOAT_REGISTERS);
938 	CHECK_ARGUMENT(fsaveds >= 0 && fsaveds <= SLJIT_NUMBER_OF_FLOAT_REGISTERS);
939 	CHECK_ARGUMENT(fscratches + fsaveds <= SLJIT_NUMBER_OF_FLOAT_REGISTERS);
940 	CHECK_ARGUMENT(local_size >= 0 && local_size <= SLJIT_MAX_LOCAL_SIZE);
941 	compiler->last_flags = 0;
942 #endif
943 #if (defined SLJIT_VERBOSE && SLJIT_VERBOSE)
944 	if (SLJIT_UNLIKELY(!!compiler->verbose))
945 		fprintf(compiler->verbose, "  set_context options:none args:%d scratches:%d saveds:%d fscratches:%d fsaveds:%d local_size:%d\n",
946 			args, scratches, saveds, fscratches, fsaveds, local_size);
947 #endif
948 	CHECK_RETURN_OK;
949 }
950 
check_sljit_emit_return(struct sljit_compiler * compiler,sljit_s32 op,sljit_s32 src,sljit_sw srcw)951 static SLJIT_INLINE CHECK_RETURN_TYPE check_sljit_emit_return(struct sljit_compiler *compiler, sljit_s32 op, sljit_s32 src, sljit_sw srcw)
952 {
953 #if (defined SLJIT_ARGUMENT_CHECKS && SLJIT_ARGUMENT_CHECKS)
954 	CHECK_ARGUMENT(compiler->scratches >= 0);
955 	if (op != SLJIT_UNUSED) {
956 		CHECK_ARGUMENT(op >= SLJIT_MOV && op <= SLJIT_MOV_P);
957 		FUNCTION_CHECK_SRC(src, srcw);
958 	}
959 	else
960 		CHECK_ARGUMENT(src == 0 && srcw == 0);
961 	compiler->last_flags = 0;
962 #endif
963 #if (defined SLJIT_VERBOSE && SLJIT_VERBOSE)
964 	if (SLJIT_UNLIKELY(!!compiler->verbose)) {
965 		if (op == SLJIT_UNUSED)
966 			fprintf(compiler->verbose, "  return\n");
967 		else {
968 			fprintf(compiler->verbose, "  return%s ", op1_names[op - SLJIT_OP1_BASE]);
969 			sljit_verbose_param(compiler, src, srcw);
970 			fprintf(compiler->verbose, "\n");
971 		}
972 	}
973 #endif
974 	CHECK_RETURN_OK;
975 }
976 
check_sljit_emit_fast_enter(struct sljit_compiler * compiler,sljit_s32 dst,sljit_sw dstw)977 static SLJIT_INLINE CHECK_RETURN_TYPE check_sljit_emit_fast_enter(struct sljit_compiler *compiler, sljit_s32 dst, sljit_sw dstw)
978 {
979 #if (defined SLJIT_ARGUMENT_CHECKS && SLJIT_ARGUMENT_CHECKS)
980 	FUNCTION_CHECK_DST(dst, dstw, 0);
981 	compiler->last_flags = 0;
982 #endif
983 #if (defined SLJIT_VERBOSE && SLJIT_VERBOSE)
984 	if (SLJIT_UNLIKELY(!!compiler->verbose)) {
985 		fprintf(compiler->verbose, "  fast_enter ");
986 		sljit_verbose_param(compiler, dst, dstw);
987 		fprintf(compiler->verbose, "\n");
988 	}
989 #endif
990 	CHECK_RETURN_OK;
991 }
992 
check_sljit_emit_fast_return(struct sljit_compiler * compiler,sljit_s32 src,sljit_sw srcw)993 static SLJIT_INLINE CHECK_RETURN_TYPE check_sljit_emit_fast_return(struct sljit_compiler *compiler, sljit_s32 src, sljit_sw srcw)
994 {
995 #if (defined SLJIT_ARGUMENT_CHECKS && SLJIT_ARGUMENT_CHECKS)
996 	FUNCTION_CHECK_SRC(src, srcw);
997 	compiler->last_flags = 0;
998 #endif
999 #if (defined SLJIT_VERBOSE && SLJIT_VERBOSE)
1000 	if (SLJIT_UNLIKELY(!!compiler->verbose)) {
1001 		fprintf(compiler->verbose, "  fast_return ");
1002 		sljit_verbose_param(compiler, src, srcw);
1003 		fprintf(compiler->verbose, "\n");
1004 	}
1005 #endif
1006 	CHECK_RETURN_OK;
1007 }
1008 
check_sljit_emit_op0(struct sljit_compiler * compiler,sljit_s32 op)1009 static SLJIT_INLINE CHECK_RETURN_TYPE check_sljit_emit_op0(struct sljit_compiler *compiler, sljit_s32 op)
1010 {
1011 #if (defined SLJIT_ARGUMENT_CHECKS && SLJIT_ARGUMENT_CHECKS)
1012 	CHECK_ARGUMENT((op >= SLJIT_BREAKPOINT && op <= SLJIT_LMUL_SW)
1013 		|| ((op & ~SLJIT_I32_OP) >= SLJIT_DIVMOD_UW && (op & ~SLJIT_I32_OP) <= SLJIT_DIV_SW));
1014 	CHECK_ARGUMENT(op < SLJIT_LMUL_UW || compiler->scratches >= 2);
1015 	if (op >= SLJIT_LMUL_UW)
1016 		compiler->last_flags = 0;
1017 #endif
1018 #if (defined SLJIT_VERBOSE && SLJIT_VERBOSE)
1019 	if (SLJIT_UNLIKELY(!!compiler->verbose))
1020 	{
1021 		fprintf(compiler->verbose, "  %s", op0_names[GET_OPCODE(op) - SLJIT_OP0_BASE]);
1022 		if (GET_OPCODE(op) >= SLJIT_DIVMOD_UW) {
1023 			fprintf(compiler->verbose, (op & SLJIT_I32_OP) ? "32" : "w");
1024 		}
1025 		fprintf(compiler->verbose, "\n");
1026 	}
1027 #endif
1028 	CHECK_RETURN_OK;
1029 }
1030 
check_sljit_emit_op1(struct sljit_compiler * compiler,sljit_s32 op,sljit_s32 dst,sljit_sw dstw,sljit_s32 src,sljit_sw srcw)1031 static SLJIT_INLINE CHECK_RETURN_TYPE check_sljit_emit_op1(struct sljit_compiler *compiler, sljit_s32 op,
1032 	sljit_s32 dst, sljit_sw dstw,
1033 	sljit_s32 src, sljit_sw srcw)
1034 {
1035 	if (SLJIT_UNLIKELY(compiler->skip_checks)) {
1036 		compiler->skip_checks = 0;
1037 		CHECK_RETURN_OK;
1038 	}
1039 
1040 #if (defined SLJIT_ARGUMENT_CHECKS && SLJIT_ARGUMENT_CHECKS)
1041 	CHECK_ARGUMENT(GET_OPCODE(op) >= SLJIT_MOV && GET_OPCODE(op) <= SLJIT_CLZ);
1042 
1043 	switch (GET_OPCODE(op)) {
1044 	case SLJIT_NOT:
1045 		/* Only SLJIT_I32_OP and SLJIT_SET_Z are allowed. */
1046 		CHECK_ARGUMENT(!(op & VARIABLE_FLAG_MASK));
1047 		break;
1048 	case SLJIT_NEG:
1049 		CHECK_ARGUMENT(!(op & VARIABLE_FLAG_MASK)
1050 			|| GET_FLAG_TYPE(op) == SLJIT_OVERFLOW);
1051 		break;
1052 	case SLJIT_MOV:
1053 	case SLJIT_MOV_U32:
1054 	case SLJIT_MOV_P:
1055 	case SLJIT_MOVU:
1056 	case SLJIT_MOVU_U32:
1057 	case SLJIT_MOVU_P:
1058 		/* Nothing allowed */
1059 		CHECK_ARGUMENT(!(op & (SLJIT_I32_OP | SLJIT_SET_Z | VARIABLE_FLAG_MASK)));
1060 		break;
1061 	default:
1062 		/* Only SLJIT_I32_OP is allowed. */
1063 		CHECK_ARGUMENT(!(op & (SLJIT_SET_Z | VARIABLE_FLAG_MASK)));
1064 		break;
1065 	}
1066 
1067 	FUNCTION_CHECK_DST(dst, dstw, 1);
1068 	FUNCTION_CHECK_SRC(src, srcw);
1069 
1070 	if (GET_OPCODE(op) >= SLJIT_NOT)
1071 		compiler->last_flags = GET_FLAG_TYPE(op) | (op & (SLJIT_I32_OP | SLJIT_SET_Z));
1072 	else if (GET_OPCODE(op) >= SLJIT_MOVU) {
1073 		CHECK_ARGUMENT(!(src & SLJIT_MEM) || (src & REG_MASK) != SLJIT_SP);
1074 		CHECK_ARGUMENT(!(dst & SLJIT_MEM) || (dst & REG_MASK) != SLJIT_SP);
1075 		if ((src & REG_MASK) != SLJIT_UNUSED) {
1076 			CHECK_ARGUMENT((src & REG_MASK) != (dst & REG_MASK) && (src & REG_MASK) != OFFS_REG(dst));
1077 			CHECK_ARGUMENT((src & OFFS_REG_MASK) == SLJIT_UNUSED || srcw == 0);
1078 		}
1079 		if ((dst & REG_MASK) != SLJIT_UNUSED) {
1080 			CHECK_ARGUMENT((dst & REG_MASK) != OFFS_REG(src));
1081 			CHECK_ARGUMENT((dst & OFFS_REG_MASK) == SLJIT_UNUSED || dstw == 0);
1082 		}
1083 		compiler->last_flags = 0;
1084 	}
1085 #endif
1086 #if (defined SLJIT_VERBOSE && SLJIT_VERBOSE)
1087 	if (SLJIT_UNLIKELY(!!compiler->verbose)) {
1088 		if (GET_OPCODE(op) <= SLJIT_MOVU_P)
1089 		{
1090 			fprintf(compiler->verbose, "  mov%s%s%s ", (GET_OPCODE(op) >= SLJIT_MOVU) ? "u" : "",
1091 				!(op & SLJIT_I32_OP) ? "" : "32", (op != SLJIT_MOV32 && op != SLJIT_MOVU32) ? op1_names[GET_OPCODE(op) - SLJIT_OP1_BASE] : "");
1092 		}
1093 		else
1094 		{
1095 			fprintf(compiler->verbose, "  %s%s%s%s%s ", op1_names[GET_OPCODE(op) - SLJIT_OP1_BASE], !(op & SLJIT_I32_OP) ? "" : "32",
1096 				!(op & SLJIT_SET_Z) ? "" : ".z", !(op & VARIABLE_FLAG_MASK) ? "" : ".",
1097 				!(op & VARIABLE_FLAG_MASK) ? "" : jump_names[GET_FLAG_TYPE(op)]);
1098 		}
1099 
1100 		sljit_verbose_param(compiler, dst, dstw);
1101 		fprintf(compiler->verbose, ", ");
1102 		sljit_verbose_param(compiler, src, srcw);
1103 		fprintf(compiler->verbose, "\n");
1104 	}
1105 #endif
1106 	CHECK_RETURN_OK;
1107 }
1108 
check_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)1109 static SLJIT_INLINE CHECK_RETURN_TYPE check_sljit_emit_op2(struct sljit_compiler *compiler, sljit_s32 op,
1110 	sljit_s32 dst, sljit_sw dstw,
1111 	sljit_s32 src1, sljit_sw src1w,
1112 	sljit_s32 src2, sljit_sw src2w)
1113 {
1114 	if (SLJIT_UNLIKELY(compiler->skip_checks)) {
1115 		compiler->skip_checks = 0;
1116 		CHECK_RETURN_OK;
1117 	}
1118 
1119 #if (defined SLJIT_ARGUMENT_CHECKS && SLJIT_ARGUMENT_CHECKS)
1120 	CHECK_ARGUMENT(GET_OPCODE(op) >= SLJIT_ADD && GET_OPCODE(op) <= SLJIT_ASHR);
1121 
1122 	switch (GET_OPCODE(op)) {
1123 	case SLJIT_AND:
1124 	case SLJIT_OR:
1125 	case SLJIT_XOR:
1126 	case SLJIT_SHL:
1127 	case SLJIT_LSHR:
1128 	case SLJIT_ASHR:
1129 		CHECK_ARGUMENT(!(op & VARIABLE_FLAG_MASK));
1130 		break;
1131 	case SLJIT_MUL:
1132 		CHECK_ARGUMENT(!(op & SLJIT_SET_Z));
1133 		CHECK_ARGUMENT(!(op & VARIABLE_FLAG_MASK)
1134 			|| GET_FLAG_TYPE(op) == SLJIT_MUL_OVERFLOW);
1135 		break;
1136 	case SLJIT_ADD:
1137 		CHECK_ARGUMENT(!(op & VARIABLE_FLAG_MASK)
1138 			|| GET_FLAG_TYPE(op) == GET_FLAG_TYPE(SLJIT_SET_CARRY)
1139 			|| GET_FLAG_TYPE(op) == SLJIT_OVERFLOW);
1140 		break;
1141 	case SLJIT_SUB:
1142 		CHECK_ARGUMENT(!(op & VARIABLE_FLAG_MASK)
1143 			|| (GET_FLAG_TYPE(op) >= SLJIT_LESS && GET_FLAG_TYPE(op) <= SLJIT_OVERFLOW)
1144 			|| GET_FLAG_TYPE(op) == GET_FLAG_TYPE(SLJIT_SET_CARRY));
1145 		break;
1146 	case SLJIT_ADDC:
1147 	case SLJIT_SUBC:
1148 		CHECK_ARGUMENT(!(op & VARIABLE_FLAG_MASK)
1149 			|| GET_FLAG_TYPE(op) == GET_FLAG_TYPE(SLJIT_SET_CARRY));
1150 		CHECK_ARGUMENT((compiler->last_flags & 0xff) == GET_FLAG_TYPE(SLJIT_SET_CARRY));
1151 		CHECK_ARGUMENT((op & SLJIT_I32_OP) == (compiler->last_flags & SLJIT_I32_OP));
1152 		break;
1153 	default:
1154 		SLJIT_UNREACHABLE();
1155 		break;
1156 	}
1157 
1158 	FUNCTION_CHECK_DST(dst, dstw, 1);
1159 	FUNCTION_CHECK_SRC(src1, src1w);
1160 	FUNCTION_CHECK_SRC(src2, src2w);
1161 	compiler->last_flags = GET_FLAG_TYPE(op) | (op & (SLJIT_I32_OP | SLJIT_SET_Z));
1162 #endif
1163 #if (defined SLJIT_VERBOSE && SLJIT_VERBOSE)
1164 	if (SLJIT_UNLIKELY(!!compiler->verbose)) {
1165 		fprintf(compiler->verbose, "  %s%s%s%s%s ", op2_names[GET_OPCODE(op) - SLJIT_OP2_BASE], !(op & SLJIT_I32_OP) ? "" : "32",
1166 			!(op & SLJIT_SET_Z) ? "" : ".z", !(op & VARIABLE_FLAG_MASK) ? "" : ".",
1167 			!(op & VARIABLE_FLAG_MASK) ? "" : jump_names[GET_FLAG_TYPE(op)]);
1168 		sljit_verbose_param(compiler, dst, dstw);
1169 		fprintf(compiler->verbose, ", ");
1170 		sljit_verbose_param(compiler, src1, src1w);
1171 		fprintf(compiler->verbose, ", ");
1172 		sljit_verbose_param(compiler, src2, src2w);
1173 		fprintf(compiler->verbose, "\n");
1174 	}
1175 #endif
1176 	CHECK_RETURN_OK;
1177 }
1178 
check_sljit_get_register_index(sljit_s32 reg)1179 static SLJIT_INLINE CHECK_RETURN_TYPE check_sljit_get_register_index(sljit_s32 reg)
1180 {
1181 	SLJIT_UNUSED_ARG(reg);
1182 #if (defined SLJIT_ARGUMENT_CHECKS && SLJIT_ARGUMENT_CHECKS)
1183 	CHECK_ARGUMENT(reg > 0 && reg <= SLJIT_NUMBER_OF_REGISTERS);
1184 #endif
1185 	CHECK_RETURN_OK;
1186 }
1187 
check_sljit_get_float_register_index(sljit_s32 reg)1188 static SLJIT_INLINE CHECK_RETURN_TYPE check_sljit_get_float_register_index(sljit_s32 reg)
1189 {
1190 	SLJIT_UNUSED_ARG(reg);
1191 #if (defined SLJIT_ARGUMENT_CHECKS && SLJIT_ARGUMENT_CHECKS)
1192 	CHECK_ARGUMENT(reg > 0 && reg <= SLJIT_NUMBER_OF_FLOAT_REGISTERS);
1193 #endif
1194 	CHECK_RETURN_OK;
1195 }
1196 
check_sljit_emit_op_custom(struct sljit_compiler * compiler,void * instruction,sljit_s32 size)1197 static SLJIT_INLINE CHECK_RETURN_TYPE check_sljit_emit_op_custom(struct sljit_compiler *compiler,
1198 	void *instruction, sljit_s32 size)
1199 {
1200 #if (defined SLJIT_VERBOSE && SLJIT_VERBOSE)
1201 	int i;
1202 #endif
1203 
1204 	SLJIT_UNUSED_ARG(compiler);
1205 
1206 #if (defined SLJIT_ARGUMENT_CHECKS && SLJIT_ARGUMENT_CHECKS)
1207 	CHECK_ARGUMENT(instruction);
1208 
1209 #if (defined SLJIT_CONFIG_X86 && SLJIT_CONFIG_X86)
1210 	CHECK_ARGUMENT(size > 0 && size < 16);
1211 #elif (defined SLJIT_CONFIG_ARM_THUMB2 && SLJIT_CONFIG_ARM_THUMB2)
1212 	CHECK_ARGUMENT((size == 2 && (((sljit_sw)instruction) & 0x1) == 0)
1213 		|| (size == 4 && (((sljit_sw)instruction) & 0x3) == 0));
1214 #else
1215 	CHECK_ARGUMENT(size == 4 && (((sljit_sw)instruction) & 0x3) == 0);
1216 #endif
1217 
1218 	compiler->last_flags = 0;
1219 #endif
1220 #if (defined SLJIT_VERBOSE && SLJIT_VERBOSE)
1221 	if (SLJIT_UNLIKELY(!!compiler->verbose)) {
1222 		fprintf(compiler->verbose, "  op_custom");
1223 		for (i = 0; i < size; i++)
1224 			fprintf(compiler->verbose, " 0x%x", ((sljit_u8*)instruction)[i]);
1225 		fprintf(compiler->verbose, "\n");
1226 	}
1227 #endif
1228 	CHECK_RETURN_OK;
1229 }
1230 
check_sljit_emit_fop1(struct sljit_compiler * compiler,sljit_s32 op,sljit_s32 dst,sljit_sw dstw,sljit_s32 src,sljit_sw srcw)1231 static SLJIT_INLINE CHECK_RETURN_TYPE check_sljit_emit_fop1(struct sljit_compiler *compiler, sljit_s32 op,
1232 	sljit_s32 dst, sljit_sw dstw,
1233 	sljit_s32 src, sljit_sw srcw)
1234 {
1235 	if (SLJIT_UNLIKELY(compiler->skip_checks)) {
1236 		compiler->skip_checks = 0;
1237 		CHECK_RETURN_OK;
1238 	}
1239 
1240 #if (defined SLJIT_ARGUMENT_CHECKS && SLJIT_ARGUMENT_CHECKS)
1241 	CHECK_ARGUMENT(sljit_has_cpu_feature(SLJIT_HAS_FPU));
1242 	CHECK_ARGUMENT(GET_OPCODE(op) >= SLJIT_MOV_F64 && GET_OPCODE(op) <= SLJIT_ABS_F64);
1243 	CHECK_ARGUMENT(!(op & (SLJIT_SET_Z | VARIABLE_FLAG_MASK)));
1244 	FUNCTION_FCHECK(src, srcw);
1245 	FUNCTION_FCHECK(dst, dstw);
1246 #endif
1247 #if (defined SLJIT_VERBOSE && SLJIT_VERBOSE)
1248 	if (SLJIT_UNLIKELY(!!compiler->verbose)) {
1249 		if (GET_OPCODE(op) == SLJIT_CONV_F64_FROM_F32)
1250 			fprintf(compiler->verbose, "  %s%s ", fop1_names[SLJIT_CONV_F64_FROM_F32 - SLJIT_FOP1_BASE],
1251 				(op & SLJIT_F32_OP) ? ".f32.from.f64" : ".f64.from.f32");
1252 		else
1253 			fprintf(compiler->verbose, "  %s%s ", fop1_names[GET_OPCODE(op) - SLJIT_FOP1_BASE],
1254 				(op & SLJIT_F32_OP) ? ".f32" : ".f64");
1255 
1256 		sljit_verbose_fparam(compiler, dst, dstw);
1257 		fprintf(compiler->verbose, ", ");
1258 		sljit_verbose_fparam(compiler, src, srcw);
1259 		fprintf(compiler->verbose, "\n");
1260 	}
1261 #endif
1262 	CHECK_RETURN_OK;
1263 }
1264 
check_sljit_emit_fop1_cmp(struct sljit_compiler * compiler,sljit_s32 op,sljit_s32 src1,sljit_sw src1w,sljit_s32 src2,sljit_sw src2w)1265 static SLJIT_INLINE CHECK_RETURN_TYPE check_sljit_emit_fop1_cmp(struct sljit_compiler *compiler, sljit_s32 op,
1266 	sljit_s32 src1, sljit_sw src1w,
1267 	sljit_s32 src2, sljit_sw src2w)
1268 {
1269 #if (defined SLJIT_ARGUMENT_CHECKS && SLJIT_ARGUMENT_CHECKS)
1270 	compiler->last_flags = GET_FLAG_TYPE(op) | (op & (SLJIT_I32_OP | SLJIT_SET_Z));
1271 #endif
1272 
1273 	if (SLJIT_UNLIKELY(compiler->skip_checks)) {
1274 		compiler->skip_checks = 0;
1275 		CHECK_RETURN_OK;
1276 	}
1277 
1278 #if (defined SLJIT_ARGUMENT_CHECKS && SLJIT_ARGUMENT_CHECKS)
1279 	CHECK_ARGUMENT(sljit_has_cpu_feature(SLJIT_HAS_FPU));
1280 	CHECK_ARGUMENT(GET_OPCODE(op) == SLJIT_CMP_F64);
1281 	CHECK_ARGUMENT(!(op & SLJIT_SET_Z));
1282 	CHECK_ARGUMENT((op & VARIABLE_FLAG_MASK)
1283 		|| (GET_FLAG_TYPE(op) >= SLJIT_EQUAL_F64 && GET_FLAG_TYPE(op) <= SLJIT_ORDERED_F64));
1284 	FUNCTION_FCHECK(src1, src1w);
1285 	FUNCTION_FCHECK(src2, src2w);
1286 #endif
1287 #if (defined SLJIT_VERBOSE && SLJIT_VERBOSE)
1288 	if (SLJIT_UNLIKELY(!!compiler->verbose)) {
1289 		fprintf(compiler->verbose, "  %s%s", fop1_names[SLJIT_CMP_F64 - SLJIT_FOP1_BASE], (op & SLJIT_F32_OP) ? ".f32" : ".f64");
1290 		if (op & VARIABLE_FLAG_MASK) {
1291 			fprintf(compiler->verbose, ".%s_f", jump_names[GET_FLAG_TYPE(op)]);
1292 		}
1293 		fprintf(compiler->verbose, " ");
1294 		sljit_verbose_fparam(compiler, src1, src1w);
1295 		fprintf(compiler->verbose, ", ");
1296 		sljit_verbose_fparam(compiler, src2, src2w);
1297 		fprintf(compiler->verbose, "\n");
1298 	}
1299 #endif
1300 	CHECK_RETURN_OK;
1301 }
1302 
check_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)1303 static SLJIT_INLINE CHECK_RETURN_TYPE check_sljit_emit_fop1_conv_sw_from_f64(struct sljit_compiler *compiler, sljit_s32 op,
1304 	sljit_s32 dst, sljit_sw dstw,
1305 	sljit_s32 src, sljit_sw srcw)
1306 {
1307 	if (SLJIT_UNLIKELY(compiler->skip_checks)) {
1308 		compiler->skip_checks = 0;
1309 		CHECK_RETURN_OK;
1310 	}
1311 
1312 #if (defined SLJIT_ARGUMENT_CHECKS && SLJIT_ARGUMENT_CHECKS)
1313 	CHECK_ARGUMENT(sljit_has_cpu_feature(SLJIT_HAS_FPU));
1314 	CHECK_ARGUMENT(GET_OPCODE(op) >= SLJIT_CONV_SW_FROM_F64 && GET_OPCODE(op) <= SLJIT_CONV_S32_FROM_F64);
1315 	CHECK_ARGUMENT(!(op & (SLJIT_SET_Z | VARIABLE_FLAG_MASK)));
1316 	FUNCTION_FCHECK(src, srcw);
1317 	FUNCTION_CHECK_DST(dst, dstw, 0);
1318 #endif
1319 #if (defined SLJIT_VERBOSE && SLJIT_VERBOSE)
1320 	if (SLJIT_UNLIKELY(!!compiler->verbose)) {
1321 		fprintf(compiler->verbose, "  %s%s.from%s ", fop1_names[GET_OPCODE(op) - SLJIT_FOP1_BASE],
1322 			(GET_OPCODE(op) == SLJIT_CONV_S32_FROM_F64) ? ".s32" : ".sw",
1323 			(op & SLJIT_F32_OP) ? ".f32" : ".f64");
1324 		sljit_verbose_param(compiler, dst, dstw);
1325 		fprintf(compiler->verbose, ", ");
1326 		sljit_verbose_fparam(compiler, src, srcw);
1327 		fprintf(compiler->verbose, "\n");
1328 	}
1329 #endif
1330 	CHECK_RETURN_OK;
1331 }
1332 
check_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)1333 static SLJIT_INLINE CHECK_RETURN_TYPE check_sljit_emit_fop1_conv_f64_from_sw(struct sljit_compiler *compiler, sljit_s32 op,
1334 	sljit_s32 dst, sljit_sw dstw,
1335 	sljit_s32 src, sljit_sw srcw)
1336 {
1337 	if (SLJIT_UNLIKELY(compiler->skip_checks)) {
1338 		compiler->skip_checks = 0;
1339 		CHECK_RETURN_OK;
1340 	}
1341 
1342 #if (defined SLJIT_ARGUMENT_CHECKS && SLJIT_ARGUMENT_CHECKS)
1343 	CHECK_ARGUMENT(sljit_has_cpu_feature(SLJIT_HAS_FPU));
1344 	CHECK_ARGUMENT(GET_OPCODE(op) >= SLJIT_CONV_F64_FROM_SW && GET_OPCODE(op) <= SLJIT_CONV_F64_FROM_S32);
1345 	CHECK_ARGUMENT(!(op & (SLJIT_SET_Z | VARIABLE_FLAG_MASK)));
1346 	FUNCTION_CHECK_SRC(src, srcw);
1347 	FUNCTION_FCHECK(dst, dstw);
1348 #endif
1349 #if (defined SLJIT_VERBOSE && SLJIT_VERBOSE)
1350 	if (SLJIT_UNLIKELY(!!compiler->verbose)) {
1351 		fprintf(compiler->verbose, "  %s%s.from%s ", fop1_names[GET_OPCODE(op) - SLJIT_FOP1_BASE],
1352 			(op & SLJIT_F32_OP) ? ".f32" : ".f64",
1353 			(GET_OPCODE(op) == SLJIT_CONV_F64_FROM_S32) ? ".s32" : ".sw");
1354 		sljit_verbose_fparam(compiler, dst, dstw);
1355 		fprintf(compiler->verbose, ", ");
1356 		sljit_verbose_param(compiler, src, srcw);
1357 		fprintf(compiler->verbose, "\n");
1358 	}
1359 #endif
1360 	CHECK_RETURN_OK;
1361 }
1362 
check_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)1363 static SLJIT_INLINE CHECK_RETURN_TYPE check_sljit_emit_fop2(struct sljit_compiler *compiler, sljit_s32 op,
1364 	sljit_s32 dst, sljit_sw dstw,
1365 	sljit_s32 src1, sljit_sw src1w,
1366 	sljit_s32 src2, sljit_sw src2w)
1367 {
1368 #if (defined SLJIT_ARGUMENT_CHECKS && SLJIT_ARGUMENT_CHECKS)
1369 	CHECK_ARGUMENT(sljit_has_cpu_feature(SLJIT_HAS_FPU));
1370 	CHECK_ARGUMENT(GET_OPCODE(op) >= SLJIT_ADD_F64 && GET_OPCODE(op) <= SLJIT_DIV_F64);
1371 	CHECK_ARGUMENT(!(op & (SLJIT_SET_Z | VARIABLE_FLAG_MASK)));
1372 	FUNCTION_FCHECK(src1, src1w);
1373 	FUNCTION_FCHECK(src2, src2w);
1374 	FUNCTION_FCHECK(dst, dstw);
1375 #endif
1376 #if (defined SLJIT_VERBOSE && SLJIT_VERBOSE)
1377 	if (SLJIT_UNLIKELY(!!compiler->verbose)) {
1378 		fprintf(compiler->verbose, "  %s%s ", fop2_names[GET_OPCODE(op) - SLJIT_FOP2_BASE], (op & SLJIT_F32_OP) ? ".f32" : ".f64");
1379 		sljit_verbose_fparam(compiler, dst, dstw);
1380 		fprintf(compiler->verbose, ", ");
1381 		sljit_verbose_fparam(compiler, src1, src1w);
1382 		fprintf(compiler->verbose, ", ");
1383 		sljit_verbose_fparam(compiler, src2, src2w);
1384 		fprintf(compiler->verbose, "\n");
1385 	}
1386 #endif
1387 	CHECK_RETURN_OK;
1388 }
1389 
check_sljit_emit_label(struct sljit_compiler * compiler)1390 static SLJIT_INLINE CHECK_RETURN_TYPE check_sljit_emit_label(struct sljit_compiler *compiler)
1391 {
1392 	SLJIT_UNUSED_ARG(compiler);
1393 
1394 	if (SLJIT_UNLIKELY(compiler->skip_checks)) {
1395 		compiler->skip_checks = 0;
1396 		CHECK_RETURN_OK;
1397 	}
1398 
1399 #if (defined SLJIT_ARGUMENT_CHECKS && SLJIT_ARGUMENT_CHECKS)
1400 	compiler->last_flags = 0;
1401 #endif
1402 
1403 #if (defined SLJIT_VERBOSE && SLJIT_VERBOSE)
1404 	if (SLJIT_UNLIKELY(!!compiler->verbose))
1405 		fprintf(compiler->verbose, "label:\n");
1406 #endif
1407 	CHECK_RETURN_OK;
1408 }
1409 
check_sljit_emit_jump(struct sljit_compiler * compiler,sljit_s32 type)1410 static SLJIT_INLINE CHECK_RETURN_TYPE check_sljit_emit_jump(struct sljit_compiler *compiler, sljit_s32 type)
1411 {
1412 	if (SLJIT_UNLIKELY(compiler->skip_checks)) {
1413 		compiler->skip_checks = 0;
1414 		CHECK_RETURN_OK;
1415 	}
1416 
1417 #if (defined SLJIT_ARGUMENT_CHECKS && SLJIT_ARGUMENT_CHECKS)
1418 	CHECK_ARGUMENT(!(type & ~(0xff | SLJIT_REWRITABLE_JUMP | SLJIT_I32_OP)));
1419 	CHECK_ARGUMENT((type & 0xff) != GET_FLAG_TYPE(SLJIT_SET_CARRY) && (type & 0xff) != (GET_FLAG_TYPE(SLJIT_SET_CARRY) + 1));
1420 	CHECK_ARGUMENT((type & 0xff) >= SLJIT_EQUAL && (type & 0xff) <= SLJIT_CALL3);
1421 	CHECK_ARGUMENT((type & 0xff) < SLJIT_JUMP || !(type & SLJIT_I32_OP));
1422 	CHECK_ARGUMENT((type & 0xff) <= SLJIT_CALL0 || ((type & 0xff) - SLJIT_CALL0) <= compiler->scratches);
1423 
1424 	if ((type & 0xff) < SLJIT_JUMP) {
1425 		if ((type & 0xff) <= SLJIT_NOT_ZERO)
1426 			CHECK_ARGUMENT(compiler->last_flags & SLJIT_SET_Z);
1427 		else
1428 			CHECK_ARGUMENT((type & 0xff) == (compiler->last_flags & 0xff)
1429 				|| ((type & 0xff) == SLJIT_NOT_OVERFLOW && (compiler->last_flags & 0xff) == SLJIT_OVERFLOW)
1430 				|| ((type & 0xff) == SLJIT_MUL_NOT_OVERFLOW && (compiler->last_flags & 0xff) == SLJIT_MUL_OVERFLOW));
1431 		CHECK_ARGUMENT((type & SLJIT_I32_OP) == (compiler->last_flags & SLJIT_I32_OP));
1432 	}
1433 #endif
1434 #if (defined SLJIT_VERBOSE && SLJIT_VERBOSE)
1435 	if (SLJIT_UNLIKELY(!!compiler->verbose))
1436 		fprintf(compiler->verbose, "  jump%s %s%s\n", !(type & SLJIT_REWRITABLE_JUMP) ? "" : ".r",
1437 			jump_names[type & 0xff], JUMP_POSTFIX(type));
1438 #endif
1439 	CHECK_RETURN_OK;
1440 }
1441 
check_sljit_emit_cmp(struct sljit_compiler * compiler,sljit_s32 type,sljit_s32 src1,sljit_sw src1w,sljit_s32 src2,sljit_sw src2w)1442 static SLJIT_INLINE CHECK_RETURN_TYPE check_sljit_emit_cmp(struct sljit_compiler *compiler, sljit_s32 type,
1443 	sljit_s32 src1, sljit_sw src1w,
1444 	sljit_s32 src2, sljit_sw src2w)
1445 {
1446 #if (defined SLJIT_ARGUMENT_CHECKS && SLJIT_ARGUMENT_CHECKS)
1447 	CHECK_ARGUMENT(!(type & ~(0xff | SLJIT_REWRITABLE_JUMP | SLJIT_I32_OP)));
1448 	CHECK_ARGUMENT((type & 0xff) >= SLJIT_EQUAL && (type & 0xff) <= SLJIT_SIG_LESS_EQUAL);
1449 	FUNCTION_CHECK_SRC(src1, src1w);
1450 	FUNCTION_CHECK_SRC(src2, src2w);
1451 	compiler->last_flags = 0;
1452 #endif
1453 #if (defined SLJIT_VERBOSE && SLJIT_VERBOSE)
1454 	if (SLJIT_UNLIKELY(!!compiler->verbose)) {
1455 		fprintf(compiler->verbose, "  cmp%s %s%s, ", !(type & SLJIT_REWRITABLE_JUMP) ? "" : ".r",
1456 			jump_names[type & 0xff], (type & SLJIT_I32_OP) ? "32" : "");
1457 		sljit_verbose_param(compiler, src1, src1w);
1458 		fprintf(compiler->verbose, ", ");
1459 		sljit_verbose_param(compiler, src2, src2w);
1460 		fprintf(compiler->verbose, "\n");
1461 	}
1462 #endif
1463 	CHECK_RETURN_OK;
1464 }
1465 
check_sljit_emit_fcmp(struct sljit_compiler * compiler,sljit_s32 type,sljit_s32 src1,sljit_sw src1w,sljit_s32 src2,sljit_sw src2w)1466 static SLJIT_INLINE CHECK_RETURN_TYPE check_sljit_emit_fcmp(struct sljit_compiler *compiler, sljit_s32 type,
1467 	sljit_s32 src1, sljit_sw src1w,
1468 	sljit_s32 src2, sljit_sw src2w)
1469 {
1470 #if (defined SLJIT_ARGUMENT_CHECKS && SLJIT_ARGUMENT_CHECKS)
1471 	CHECK_ARGUMENT(sljit_has_cpu_feature(SLJIT_HAS_FPU));
1472 	CHECK_ARGUMENT(!(type & ~(0xff | SLJIT_REWRITABLE_JUMP | SLJIT_F32_OP)));
1473 	CHECK_ARGUMENT((type & 0xff) >= SLJIT_EQUAL_F64 && (type & 0xff) <= SLJIT_ORDERED_F64);
1474 	FUNCTION_FCHECK(src1, src1w);
1475 	FUNCTION_FCHECK(src2, src2w);
1476 	compiler->last_flags = 0;
1477 #endif
1478 #if (defined SLJIT_VERBOSE && SLJIT_VERBOSE)
1479 	if (SLJIT_UNLIKELY(!!compiler->verbose)) {
1480 		fprintf(compiler->verbose, "  fcmp%s %s%s, ", !(type & SLJIT_REWRITABLE_JUMP) ? "" : ".r",
1481 			jump_names[type & 0xff], (type & SLJIT_F32_OP) ? ".f32" : ".f64");
1482 		sljit_verbose_fparam(compiler, src1, src1w);
1483 		fprintf(compiler->verbose, ", ");
1484 		sljit_verbose_fparam(compiler, src2, src2w);
1485 		fprintf(compiler->verbose, "\n");
1486 	}
1487 #endif
1488 	CHECK_RETURN_OK;
1489 }
1490 
check_sljit_emit_ijump(struct sljit_compiler * compiler,sljit_s32 type,sljit_s32 src,sljit_sw srcw)1491 static SLJIT_INLINE CHECK_RETURN_TYPE check_sljit_emit_ijump(struct sljit_compiler *compiler, sljit_s32 type, sljit_s32 src, sljit_sw srcw)
1492 {
1493 #if (defined SLJIT_ARGUMENT_CHECKS && SLJIT_ARGUMENT_CHECKS)
1494 	compiler->last_flags = 0;
1495 #endif
1496 
1497 	if (SLJIT_UNLIKELY(compiler->skip_checks)) {
1498 		compiler->skip_checks = 0;
1499 		CHECK_RETURN_OK;
1500 	}
1501 
1502 #if (defined SLJIT_ARGUMENT_CHECKS && SLJIT_ARGUMENT_CHECKS)
1503 	CHECK_ARGUMENT(type >= SLJIT_JUMP && type <= SLJIT_CALL3);
1504 	CHECK_ARGUMENT(type <= SLJIT_CALL0 || (type - SLJIT_CALL0) <= compiler->scratches);
1505 	FUNCTION_CHECK_SRC(src, srcw);
1506 #endif
1507 #if (defined SLJIT_VERBOSE && SLJIT_VERBOSE)
1508 	if (SLJIT_UNLIKELY(!!compiler->verbose)) {
1509 		fprintf(compiler->verbose, "  ijump.%s ", jump_names[type]);
1510 		sljit_verbose_param(compiler, src, srcw);
1511 		fprintf(compiler->verbose, "\n");
1512 	}
1513 #endif
1514 	CHECK_RETURN_OK;
1515 }
1516 
check_sljit_emit_op_flags(struct sljit_compiler * compiler,sljit_s32 op,sljit_s32 dst,sljit_sw dstw,sljit_s32 type)1517 static SLJIT_INLINE CHECK_RETURN_TYPE check_sljit_emit_op_flags(struct sljit_compiler *compiler, sljit_s32 op,
1518 	sljit_s32 dst, sljit_sw dstw,
1519 	sljit_s32 type)
1520 {
1521 #if (defined SLJIT_ARGUMENT_CHECKS && SLJIT_ARGUMENT_CHECKS)
1522 	CHECK_ARGUMENT(!(type & ~(0xff | SLJIT_I32_OP)));
1523 	CHECK_ARGUMENT((type & 0xff) >= SLJIT_EQUAL && (type & 0xff) <= SLJIT_ORDERED_F64);
1524 	CHECK_ARGUMENT((type & 0xff) != GET_FLAG_TYPE(SLJIT_SET_CARRY) && (type & 0xff) != (GET_FLAG_TYPE(SLJIT_SET_CARRY) + 1));
1525 	CHECK_ARGUMENT(op == SLJIT_MOV || op == SLJIT_MOV32
1526 		|| (GET_OPCODE(op) >= SLJIT_AND && GET_OPCODE(op) <= SLJIT_XOR));
1527 	CHECK_ARGUMENT(!(op & VARIABLE_FLAG_MASK));
1528 
1529 	if ((type & 0xff) <= SLJIT_NOT_ZERO)
1530 		CHECK_ARGUMENT(compiler->last_flags & SLJIT_SET_Z);
1531 	else
1532 		CHECK_ARGUMENT((type & 0xff) == (compiler->last_flags & 0xff)
1533 			|| ((type & 0xff) == SLJIT_NOT_OVERFLOW && (compiler->last_flags & 0xff) == SLJIT_OVERFLOW)
1534 			|| ((type & 0xff) == SLJIT_MUL_NOT_OVERFLOW && (compiler->last_flags & 0xff) == SLJIT_MUL_OVERFLOW));
1535 
1536 	FUNCTION_CHECK_DST(dst, dstw, 0);
1537 
1538 	if (GET_OPCODE(op) >= SLJIT_ADD)
1539 		compiler->last_flags = GET_FLAG_TYPE(op) | (op & (SLJIT_I32_OP | SLJIT_SET_Z));
1540 #endif
1541 #if (defined SLJIT_VERBOSE && SLJIT_VERBOSE)
1542 	if (SLJIT_UNLIKELY(!!compiler->verbose)) {
1543 		fprintf(compiler->verbose, "  flags%s %s%s, ",
1544 			!(op & SLJIT_SET_Z) ? "" : ".z",
1545 			GET_OPCODE(op) < SLJIT_OP2_BASE ? "mov" : op2_names[GET_OPCODE(op) - SLJIT_OP2_BASE],
1546 			GET_OPCODE(op) < SLJIT_OP2_BASE ? op1_names[GET_OPCODE(op) - SLJIT_OP1_BASE] : ((op & SLJIT_I32_OP) ? "32" : ""));
1547 		sljit_verbose_param(compiler, dst, dstw);
1548 		fprintf(compiler->verbose, ", %s%s\n", jump_names[type & 0xff], JUMP_POSTFIX(type));
1549 	}
1550 #endif
1551 	CHECK_RETURN_OK;
1552 }
1553 
check_sljit_emit_cmov(struct sljit_compiler * compiler,sljit_s32 type,sljit_s32 dst_reg,sljit_s32 src,sljit_sw srcw)1554 static SLJIT_INLINE CHECK_RETURN_TYPE check_sljit_emit_cmov(struct sljit_compiler *compiler, sljit_s32 type,
1555 	sljit_s32 dst_reg,
1556 	sljit_s32 src, sljit_sw srcw)
1557 {
1558 #if (defined SLJIT_ARGUMENT_CHECKS && SLJIT_ARGUMENT_CHECKS)
1559 	CHECK_ARGUMENT(!(type & ~(0xff | SLJIT_I32_OP)));
1560 	CHECK_ARGUMENT((type & 0xff) >= SLJIT_EQUAL && (type & 0xff) <= SLJIT_ORDERED_F64);
1561 	CHECK_ARGUMENT(FUNCTION_CHECK_IS_REG(dst_reg & ~SLJIT_I32_OP));
1562 	if (src != SLJIT_IMM) {
1563 		CHECK_ARGUMENT(FUNCTION_CHECK_IS_REG(src));
1564 	}
1565 
1566 	if ((type & 0xff) <= SLJIT_NOT_ZERO)
1567 		CHECK_ARGUMENT(compiler->last_flags & SLJIT_SET_Z);
1568 	else
1569 		CHECK_ARGUMENT((type & 0xff) == (compiler->last_flags & 0xff)
1570 			|| ((type & 0xff) == SLJIT_NOT_OVERFLOW && (compiler->last_flags & 0xff) == SLJIT_OVERFLOW)
1571 			|| ((type & 0xff) == SLJIT_MUL_NOT_OVERFLOW && (compiler->last_flags & 0xff) == SLJIT_MUL_OVERFLOW));
1572 #endif
1573 #if (defined SLJIT_VERBOSE && SLJIT_VERBOSE)
1574 	if (SLJIT_UNLIKELY(!!compiler->verbose)) {
1575 		fprintf(compiler->verbose, "  cmov%s %s%s, ",
1576 			!(dst_reg & SLJIT_I32_OP) ? "" : ".i",
1577 			jump_names[type & 0xff], JUMP_POSTFIX(type));
1578 		sljit_verbose_reg(compiler, dst_reg & ~SLJIT_I32_OP);
1579 		fprintf(compiler->verbose, ", ");
1580 		sljit_verbose_param(compiler, src, srcw);
1581 		fprintf(compiler->verbose, "\n");
1582 	}
1583 #endif
1584 	CHECK_RETURN_OK;
1585 }
1586 
check_sljit_get_local_base(struct sljit_compiler * compiler,sljit_s32 dst,sljit_sw dstw,sljit_sw offset)1587 static SLJIT_INLINE CHECK_RETURN_TYPE check_sljit_get_local_base(struct sljit_compiler *compiler, sljit_s32 dst, sljit_sw dstw, sljit_sw offset)
1588 {
1589 	SLJIT_UNUSED_ARG(offset);
1590 
1591 #if (defined SLJIT_ARGUMENT_CHECKS && SLJIT_ARGUMENT_CHECKS)
1592 	FUNCTION_CHECK_DST(dst, dstw, 0);
1593 #endif
1594 #if (defined SLJIT_VERBOSE && SLJIT_VERBOSE)
1595 	if (SLJIT_UNLIKELY(!!compiler->verbose)) {
1596 		fprintf(compiler->verbose, "  local_base ");
1597 		sljit_verbose_param(compiler, dst, dstw);
1598 		fprintf(compiler->verbose, ", #%" SLJIT_PRINT_D "d\n", offset);
1599 	}
1600 #endif
1601 	CHECK_RETURN_OK;
1602 }
1603 
check_sljit_emit_const(struct sljit_compiler * compiler,sljit_s32 dst,sljit_sw dstw,sljit_sw init_value)1604 static SLJIT_INLINE CHECK_RETURN_TYPE check_sljit_emit_const(struct sljit_compiler *compiler, sljit_s32 dst, sljit_sw dstw, sljit_sw init_value)
1605 {
1606 	SLJIT_UNUSED_ARG(init_value);
1607 
1608 #if (defined SLJIT_ARGUMENT_CHECKS && SLJIT_ARGUMENT_CHECKS)
1609 	FUNCTION_CHECK_DST(dst, dstw, 0);
1610 #endif
1611 #if (defined SLJIT_VERBOSE && SLJIT_VERBOSE)
1612 	if (SLJIT_UNLIKELY(!!compiler->verbose)) {
1613 		fprintf(compiler->verbose, "  const ");
1614 		sljit_verbose_param(compiler, dst, dstw);
1615 		fprintf(compiler->verbose, ", #%" SLJIT_PRINT_D "d\n", init_value);
1616 	}
1617 #endif
1618 	CHECK_RETURN_OK;
1619 }
1620 
1621 #endif /* SLJIT_ARGUMENT_CHECKS || SLJIT_VERBOSE */
1622 
1623 #define SELECT_FOP1_OPERATION_WITH_CHECKS(compiler, op, dst, dstw, src, srcw) \
1624 	SLJIT_COMPILE_ASSERT(!(SLJIT_CONV_SW_FROM_F64 & 0x1) && !(SLJIT_CONV_F64_FROM_SW & 0x1), \
1625 		invalid_float_opcodes); \
1626 	if (GET_OPCODE(op) >= SLJIT_CONV_SW_FROM_F64 && GET_OPCODE(op) <= SLJIT_CMP_F64) { \
1627 		if (GET_OPCODE(op) == SLJIT_CMP_F64) { \
1628 			CHECK(check_sljit_emit_fop1_cmp(compiler, op, dst, dstw, src, srcw)); \
1629 			ADJUST_LOCAL_OFFSET(dst, dstw); \
1630 			ADJUST_LOCAL_OFFSET(src, srcw); \
1631 			return sljit_emit_fop1_cmp(compiler, op, dst, dstw, src, srcw); \
1632 		} \
1633 		if ((GET_OPCODE(op) | 0x1) == SLJIT_CONV_S32_FROM_F64) { \
1634 			CHECK(check_sljit_emit_fop1_conv_sw_from_f64(compiler, op, dst, dstw, src, srcw)); \
1635 			ADJUST_LOCAL_OFFSET(dst, dstw); \
1636 			ADJUST_LOCAL_OFFSET(src, srcw); \
1637 			return sljit_emit_fop1_conv_sw_from_f64(compiler, op, dst, dstw, src, srcw); \
1638 		} \
1639 		CHECK(check_sljit_emit_fop1_conv_f64_from_sw(compiler, op, dst, dstw, src, srcw)); \
1640 		ADJUST_LOCAL_OFFSET(dst, dstw); \
1641 		ADJUST_LOCAL_OFFSET(src, srcw); \
1642 		return sljit_emit_fop1_conv_f64_from_sw(compiler, op, dst, dstw, src, srcw); \
1643 	} \
1644 	CHECK(check_sljit_emit_fop1(compiler, op, dst, dstw, src, srcw)); \
1645 	ADJUST_LOCAL_OFFSET(dst, dstw); \
1646 	ADJUST_LOCAL_OFFSET(src, srcw);
1647 
emit_mov_before_return(struct sljit_compiler * compiler,sljit_s32 op,sljit_s32 src,sljit_sw srcw)1648 static SLJIT_INLINE sljit_s32 emit_mov_before_return(struct sljit_compiler *compiler, sljit_s32 op, sljit_s32 src, sljit_sw srcw)
1649 {
1650 	/* Return if don't need to do anything. */
1651 	if (op == SLJIT_UNUSED)
1652 		return SLJIT_SUCCESS;
1653 
1654 #if (defined SLJIT_64BIT_ARCHITECTURE && SLJIT_64BIT_ARCHITECTURE)
1655 	/* At the moment the pointer size is always equal to sljit_sw. May be changed in the future. */
1656 	if (src == SLJIT_RETURN_REG && (op == SLJIT_MOV || op == SLJIT_MOV_P))
1657 		return SLJIT_SUCCESS;
1658 #else
1659 	if (src == SLJIT_RETURN_REG && (op == SLJIT_MOV || op == SLJIT_MOV_U32 || op == SLJIT_MOV_S32 || op == SLJIT_MOV_P))
1660 		return SLJIT_SUCCESS;
1661 #endif
1662 
1663 #if (defined SLJIT_ARGUMENT_CHECKS && SLJIT_ARGUMENT_CHECKS) \
1664 		|| (defined SLJIT_VERBOSE && SLJIT_VERBOSE)
1665 	compiler->skip_checks = 1;
1666 #endif
1667 	return sljit_emit_op1(compiler, op, SLJIT_RETURN_REG, 0, src, srcw);
1668 }
1669 
1670 #if (defined SLJIT_CONFIG_X86 && SLJIT_CONFIG_X86) \
1671 		|| (defined SLJIT_CONFIG_PPC && SLJIT_CONFIG_PPC) \
1672 		|| (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32) \
1673 		|| ((defined SLJIT_CONFIG_MIPS && SLJIT_CONFIG_MIPS) && !(defined SLJIT_MIPS_R1 && SLJIT_MIPS_R1))
1674 
sljit_emit_cmov_generic(struct sljit_compiler * compiler,sljit_s32 type,sljit_s32 dst_reg,sljit_s32 src,sljit_sw srcw)1675 static SLJIT_INLINE sljit_s32 sljit_emit_cmov_generic(struct sljit_compiler *compiler, sljit_s32 type,
1676 	sljit_s32 dst_reg,
1677 	sljit_s32 src, sljit_sw srcw)
1678 {
1679 	struct sljit_label *label;
1680 	struct sljit_jump *jump;
1681 	sljit_s32 op = (dst_reg & SLJIT_I32_OP) ? SLJIT_MOV32 : SLJIT_MOV;
1682 
1683 #if (defined SLJIT_VERBOSE && SLJIT_VERBOSE) \
1684 		|| (defined SLJIT_ARGUMENT_CHECKS && SLJIT_ARGUMENT_CHECKS)
1685 	compiler->skip_checks = 1;
1686 #endif
1687 	jump = sljit_emit_jump(compiler, type ^ 0x1);
1688 	FAIL_IF(!jump);
1689 
1690 #if (defined SLJIT_VERBOSE && SLJIT_VERBOSE) \
1691 		|| (defined SLJIT_ARGUMENT_CHECKS && SLJIT_ARGUMENT_CHECKS)
1692 	compiler->skip_checks = 1;
1693 #endif
1694 	FAIL_IF(sljit_emit_op1(compiler, op, dst_reg & ~SLJIT_I32_OP, 0, src, srcw));
1695 
1696 #if (defined SLJIT_VERBOSE && SLJIT_VERBOSE) \
1697 		|| (defined SLJIT_ARGUMENT_CHECKS && SLJIT_ARGUMENT_CHECKS)
1698 	compiler->skip_checks = 1;
1699 #endif
1700 	label = sljit_emit_label(compiler);
1701 	FAIL_IF(!label);
1702 	sljit_set_label(jump, label);
1703 	return SLJIT_SUCCESS;
1704 }
1705 
1706 #endif
1707 
1708 /* CPU description section */
1709 
1710 #if (defined SLJIT_32BIT_ARCHITECTURE && SLJIT_32BIT_ARCHITECTURE)
1711 #define SLJIT_CPUINFO_PART1 " 32bit ("
1712 #elif (defined SLJIT_64BIT_ARCHITECTURE && SLJIT_64BIT_ARCHITECTURE)
1713 #define SLJIT_CPUINFO_PART1 " 64bit ("
1714 #else
1715 #error "Internal error: CPU type info missing"
1716 #endif
1717 
1718 #if (defined SLJIT_LITTLE_ENDIAN && SLJIT_LITTLE_ENDIAN)
1719 #define SLJIT_CPUINFO_PART2 "little endian + "
1720 #elif (defined SLJIT_BIG_ENDIAN && SLJIT_BIG_ENDIAN)
1721 #define SLJIT_CPUINFO_PART2 "big endian + "
1722 #else
1723 #error "Internal error: CPU type info missing"
1724 #endif
1725 
1726 #if (defined SLJIT_UNALIGNED && SLJIT_UNALIGNED)
1727 #define SLJIT_CPUINFO_PART3 "unaligned)"
1728 #else
1729 #define SLJIT_CPUINFO_PART3 "aligned)"
1730 #endif
1731 
1732 #define SLJIT_CPUINFO SLJIT_CPUINFO_PART1 SLJIT_CPUINFO_PART2 SLJIT_CPUINFO_PART3
1733 
1734 #if (defined SLJIT_CONFIG_X86 && SLJIT_CONFIG_X86)
1735 #	include "sljitNativeX86_common.c"
1736 #elif (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5)
1737 #	include "sljitNativeARM_32.c"
1738 #elif (defined SLJIT_CONFIG_ARM_V7 && SLJIT_CONFIG_ARM_V7)
1739 #	include "sljitNativeARM_32.c"
1740 #elif (defined SLJIT_CONFIG_ARM_THUMB2 && SLJIT_CONFIG_ARM_THUMB2)
1741 #	include "sljitNativeARM_T2_32.c"
1742 #elif (defined SLJIT_CONFIG_ARM_64 && SLJIT_CONFIG_ARM_64)
1743 #	include "sljitNativeARM_64.c"
1744 #elif (defined SLJIT_CONFIG_PPC && SLJIT_CONFIG_PPC)
1745 #	include "sljitNativePPC_common.c"
1746 #elif (defined SLJIT_CONFIG_MIPS && SLJIT_CONFIG_MIPS)
1747 #	include "sljitNativeMIPS_common.c"
1748 #elif (defined SLJIT_CONFIG_SPARC && SLJIT_CONFIG_SPARC)
1749 #	include "sljitNativeSPARC_common.c"
1750 #elif (defined SLJIT_CONFIG_TILEGX && SLJIT_CONFIG_TILEGX)
1751 #	include "sljitNativeTILEGX_64.c"
1752 #endif
1753 
1754 #if !(defined SLJIT_CONFIG_MIPS && SLJIT_CONFIG_MIPS)
1755 
sljit_emit_cmp(struct sljit_compiler * compiler,sljit_s32 type,sljit_s32 src1,sljit_sw src1w,sljit_s32 src2,sljit_sw src2w)1756 SLJIT_API_FUNC_ATTRIBUTE struct sljit_jump* sljit_emit_cmp(struct sljit_compiler *compiler, sljit_s32 type,
1757 	sljit_s32 src1, sljit_sw src1w,
1758 	sljit_s32 src2, sljit_sw src2w)
1759 {
1760 	/* Default compare for most architectures. */
1761 	sljit_s32 flags, tmp_src, condition;
1762 	sljit_sw tmp_srcw;
1763 
1764 	CHECK_ERROR_PTR();
1765 	CHECK_PTR(check_sljit_emit_cmp(compiler, type, src1, src1w, src2, src2w));
1766 
1767 	condition = type & 0xff;
1768 #if (defined SLJIT_CONFIG_ARM_64 && SLJIT_CONFIG_ARM_64)
1769 	if ((condition == SLJIT_EQUAL || condition == SLJIT_NOT_EQUAL)) {
1770 		if ((src1 & SLJIT_IMM) && !src1w) {
1771 			src1 = src2;
1772 			src1w = src2w;
1773 			src2 = SLJIT_IMM;
1774 			src2w = 0;
1775 		}
1776 		if ((src2 & SLJIT_IMM) && !src2w)
1777 			return emit_cmp_to0(compiler, type, src1, src1w);
1778 	}
1779 #endif
1780 
1781 	if (SLJIT_UNLIKELY((src1 & SLJIT_IMM) && !(src2 & SLJIT_IMM))) {
1782 		/* Immediate is prefered as second argument by most architectures. */
1783 		switch (condition) {
1784 		case SLJIT_LESS:
1785 			condition = SLJIT_GREATER;
1786 			break;
1787 		case SLJIT_GREATER_EQUAL:
1788 			condition = SLJIT_LESS_EQUAL;
1789 			break;
1790 		case SLJIT_GREATER:
1791 			condition = SLJIT_LESS;
1792 			break;
1793 		case SLJIT_LESS_EQUAL:
1794 			condition = SLJIT_GREATER_EQUAL;
1795 			break;
1796 		case SLJIT_SIG_LESS:
1797 			condition = SLJIT_SIG_GREATER;
1798 			break;
1799 		case SLJIT_SIG_GREATER_EQUAL:
1800 			condition = SLJIT_SIG_LESS_EQUAL;
1801 			break;
1802 		case SLJIT_SIG_GREATER:
1803 			condition = SLJIT_SIG_LESS;
1804 			break;
1805 		case SLJIT_SIG_LESS_EQUAL:
1806 			condition = SLJIT_SIG_GREATER_EQUAL;
1807 			break;
1808 		}
1809 
1810 		type = condition | (type & (SLJIT_I32_OP | SLJIT_REWRITABLE_JUMP));
1811 		tmp_src = src1;
1812 		src1 = src2;
1813 		src2 = tmp_src;
1814 		tmp_srcw = src1w;
1815 		src1w = src2w;
1816 		src2w = tmp_srcw;
1817 	}
1818 
1819 	if (condition <= SLJIT_NOT_ZERO)
1820 		flags = SLJIT_SET_Z;
1821 	else
1822 		flags = condition << VARIABLE_FLAG_SHIFT;
1823 
1824 #if (defined SLJIT_VERBOSE && SLJIT_VERBOSE) \
1825 		|| (defined SLJIT_ARGUMENT_CHECKS && SLJIT_ARGUMENT_CHECKS)
1826 	compiler->skip_checks = 1;
1827 #endif
1828 	PTR_FAIL_IF(sljit_emit_op2(compiler, SLJIT_SUB | flags | (type & SLJIT_I32_OP),
1829 		SLJIT_UNUSED, 0, src1, src1w, src2, src2w));
1830 #if (defined SLJIT_VERBOSE && SLJIT_VERBOSE) \
1831 		|| (defined SLJIT_ARGUMENT_CHECKS && SLJIT_ARGUMENT_CHECKS)
1832 	compiler->skip_checks = 1;
1833 #endif
1834 	return sljit_emit_jump(compiler, condition | (type & (SLJIT_REWRITABLE_JUMP | SLJIT_I32_OP)));
1835 }
1836 
1837 #endif
1838 
sljit_emit_fcmp(struct sljit_compiler * compiler,sljit_s32 type,sljit_s32 src1,sljit_sw src1w,sljit_s32 src2,sljit_sw src2w)1839 SLJIT_API_FUNC_ATTRIBUTE struct sljit_jump* sljit_emit_fcmp(struct sljit_compiler *compiler, sljit_s32 type,
1840 	sljit_s32 src1, sljit_sw src1w,
1841 	sljit_s32 src2, sljit_sw src2w)
1842 {
1843 	CHECK_ERROR_PTR();
1844 	CHECK_PTR(check_sljit_emit_fcmp(compiler, type, src1, src1w, src2, src2w));
1845 
1846 #if (defined SLJIT_VERBOSE && SLJIT_VERBOSE) \
1847 		|| (defined SLJIT_ARGUMENT_CHECKS && SLJIT_ARGUMENT_CHECKS)
1848 	compiler->skip_checks = 1;
1849 #endif
1850 	sljit_emit_fop1(compiler, SLJIT_CMP_F64 | ((type & 0xff) << VARIABLE_FLAG_SHIFT) | (type & SLJIT_I32_OP), src1, src1w, src2, src2w);
1851 
1852 #if (defined SLJIT_VERBOSE && SLJIT_VERBOSE) \
1853 		|| (defined SLJIT_ARGUMENT_CHECKS && SLJIT_ARGUMENT_CHECKS)
1854 	compiler->skip_checks = 1;
1855 #endif
1856 	return sljit_emit_jump(compiler, type);
1857 }
1858 
1859 #if !(defined SLJIT_CONFIG_X86 && SLJIT_CONFIG_X86)
1860 
sljit_get_local_base(struct sljit_compiler * compiler,sljit_s32 dst,sljit_sw dstw,sljit_sw offset)1861 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_get_local_base(struct sljit_compiler *compiler, sljit_s32 dst, sljit_sw dstw, sljit_sw offset)
1862 {
1863 	CHECK_ERROR();
1864 	CHECK(check_sljit_get_local_base(compiler, dst, dstw, offset));
1865 
1866 	ADJUST_LOCAL_OFFSET(SLJIT_MEM1(SLJIT_SP), offset);
1867 #if (defined SLJIT_VERBOSE && SLJIT_VERBOSE) \
1868 		|| (defined SLJIT_ARGUMENT_CHECKS && SLJIT_ARGUMENT_CHECKS)
1869 	compiler->skip_checks = 1;
1870 #endif
1871 	if (offset != 0)
1872 		return sljit_emit_op2(compiler, SLJIT_ADD, dst, dstw, SLJIT_SP, 0, SLJIT_IMM, offset);
1873 	return sljit_emit_op1(compiler, SLJIT_MOV, dst, dstw, SLJIT_SP, 0);
1874 }
1875 
1876 #endif
1877 
1878 #else /* SLJIT_CONFIG_UNSUPPORTED */
1879 
1880 /* Empty function bodies for those machines, which are not (yet) supported. */
1881 
sljit_get_platform_name(void)1882 SLJIT_API_FUNC_ATTRIBUTE const char* sljit_get_platform_name(void)
1883 {
1884 	return "unsupported";
1885 }
1886 
sljit_create_compiler(void * allocator_data)1887 SLJIT_API_FUNC_ATTRIBUTE struct sljit_compiler* sljit_create_compiler(void *allocator_data)
1888 {
1889 	SLJIT_UNUSED_ARG(allocator_data);
1890 	SLJIT_UNREACHABLE();
1891 	return NULL;
1892 }
1893 
sljit_free_compiler(struct sljit_compiler * compiler)1894 SLJIT_API_FUNC_ATTRIBUTE void sljit_free_compiler(struct sljit_compiler *compiler)
1895 {
1896 	SLJIT_UNUSED_ARG(compiler);
1897 	SLJIT_UNREACHABLE();
1898 }
1899 
sljit_set_compiler_memory_error(struct sljit_compiler * compiler)1900 SLJIT_API_FUNC_ATTRIBUTE void sljit_set_compiler_memory_error(struct sljit_compiler *compiler)
1901 {
1902 	SLJIT_UNUSED_ARG(compiler);
1903 	SLJIT_UNREACHABLE();
1904 }
1905 
sljit_alloc_memory(struct sljit_compiler * compiler,sljit_s32 size)1906 SLJIT_API_FUNC_ATTRIBUTE void* sljit_alloc_memory(struct sljit_compiler *compiler, sljit_s32 size)
1907 {
1908 	SLJIT_UNUSED_ARG(compiler);
1909 	SLJIT_UNUSED_ARG(size);
1910 	SLJIT_UNREACHABLE();
1911 	return NULL;
1912 }
1913 
1914 #if (defined SLJIT_VERBOSE && SLJIT_VERBOSE)
sljit_compiler_verbose(struct sljit_compiler * compiler,FILE * verbose)1915 SLJIT_API_FUNC_ATTRIBUTE void sljit_compiler_verbose(struct sljit_compiler *compiler, FILE* verbose)
1916 {
1917 	SLJIT_UNUSED_ARG(compiler);
1918 	SLJIT_UNUSED_ARG(verbose);
1919 	SLJIT_UNREACHABLE();
1920 }
1921 #endif
1922 
sljit_generate_code(struct sljit_compiler * compiler)1923 SLJIT_API_FUNC_ATTRIBUTE void* sljit_generate_code(struct sljit_compiler *compiler)
1924 {
1925 	SLJIT_UNUSED_ARG(compiler);
1926 	SLJIT_UNREACHABLE();
1927 	return NULL;
1928 }
1929 
sljit_has_cpu_feature(sljit_s32 feature_type)1930 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_has_cpu_feature(sljit_s32 feature_type)
1931 {
1932 	SLJIT_UNUSED_ARG(feature_type);
1933 	SLJIT_UNREACHABLE();
1934 	return 0;
1935 }
1936 
sljit_free_code(void * code)1937 SLJIT_API_FUNC_ATTRIBUTE void sljit_free_code(void* code)
1938 {
1939 	SLJIT_UNUSED_ARG(code);
1940 	SLJIT_UNREACHABLE();
1941 }
1942 
sljit_emit_enter(struct sljit_compiler * compiler,sljit_s32 options,sljit_s32 args,sljit_s32 scratches,sljit_s32 saveds,sljit_s32 fscratches,sljit_s32 fsaveds,sljit_s32 local_size)1943 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_enter(struct sljit_compiler *compiler,
1944 	sljit_s32 options, sljit_s32 args, sljit_s32 scratches, sljit_s32 saveds,
1945 	sljit_s32 fscratches, sljit_s32 fsaveds, sljit_s32 local_size)
1946 {
1947 	SLJIT_UNUSED_ARG(compiler);
1948 	SLJIT_UNUSED_ARG(options);
1949 	SLJIT_UNUSED_ARG(args);
1950 	SLJIT_UNUSED_ARG(scratches);
1951 	SLJIT_UNUSED_ARG(saveds);
1952 	SLJIT_UNUSED_ARG(fscratches);
1953 	SLJIT_UNUSED_ARG(fsaveds);
1954 	SLJIT_UNUSED_ARG(local_size);
1955 	SLJIT_UNREACHABLE();
1956 	return SLJIT_ERR_UNSUPPORTED;
1957 }
1958 
sljit_set_context(struct sljit_compiler * compiler,sljit_s32 options,sljit_s32 args,sljit_s32 scratches,sljit_s32 saveds,sljit_s32 fscratches,sljit_s32 fsaveds,sljit_s32 local_size)1959 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_set_context(struct sljit_compiler *compiler,
1960 	sljit_s32 options, sljit_s32 args, sljit_s32 scratches, sljit_s32 saveds,
1961 	sljit_s32 fscratches, sljit_s32 fsaveds, sljit_s32 local_size)
1962 {
1963 	SLJIT_UNUSED_ARG(compiler);
1964 	SLJIT_UNUSED_ARG(options);
1965 	SLJIT_UNUSED_ARG(args);
1966 	SLJIT_UNUSED_ARG(scratches);
1967 	SLJIT_UNUSED_ARG(saveds);
1968 	SLJIT_UNUSED_ARG(fscratches);
1969 	SLJIT_UNUSED_ARG(fsaveds);
1970 	SLJIT_UNUSED_ARG(local_size);
1971 	SLJIT_UNREACHABLE();
1972 	return SLJIT_ERR_UNSUPPORTED;
1973 }
1974 
sljit_emit_return(struct sljit_compiler * compiler,sljit_s32 op,sljit_s32 src,sljit_sw srcw)1975 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_return(struct sljit_compiler *compiler, sljit_s32 op, sljit_s32 src, sljit_sw srcw)
1976 {
1977 	SLJIT_UNUSED_ARG(compiler);
1978 	SLJIT_UNUSED_ARG(op);
1979 	SLJIT_UNUSED_ARG(src);
1980 	SLJIT_UNUSED_ARG(srcw);
1981 	SLJIT_UNREACHABLE();
1982 	return SLJIT_ERR_UNSUPPORTED;
1983 }
1984 
sljit_emit_fast_enter(struct sljit_compiler * compiler,sljit_s32 dst,sljit_sw dstw)1985 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_fast_enter(struct sljit_compiler *compiler, sljit_s32 dst, sljit_sw dstw)
1986 {
1987 	SLJIT_UNUSED_ARG(compiler);
1988 	SLJIT_UNUSED_ARG(dst);
1989 	SLJIT_UNUSED_ARG(dstw);
1990 	SLJIT_UNREACHABLE();
1991 	return SLJIT_ERR_UNSUPPORTED;
1992 }
1993 
sljit_emit_fast_return(struct sljit_compiler * compiler,sljit_s32 src,sljit_sw srcw)1994 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_fast_return(struct sljit_compiler *compiler, sljit_s32 src, sljit_sw srcw)
1995 {
1996 	SLJIT_UNUSED_ARG(compiler);
1997 	SLJIT_UNUSED_ARG(src);
1998 	SLJIT_UNUSED_ARG(srcw);
1999 	SLJIT_UNREACHABLE();
2000 	return SLJIT_ERR_UNSUPPORTED;
2001 }
2002 
sljit_emit_op0(struct sljit_compiler * compiler,sljit_s32 op)2003 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_op0(struct sljit_compiler *compiler, sljit_s32 op)
2004 {
2005 	SLJIT_UNUSED_ARG(compiler);
2006 	SLJIT_UNUSED_ARG(op);
2007 	SLJIT_UNREACHABLE();
2008 	return SLJIT_ERR_UNSUPPORTED;
2009 }
2010 
sljit_emit_op1(struct sljit_compiler * compiler,sljit_s32 op,sljit_s32 dst,sljit_sw dstw,sljit_s32 src,sljit_sw srcw)2011 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_op1(struct sljit_compiler *compiler, sljit_s32 op,
2012 	sljit_s32 dst, sljit_sw dstw,
2013 	sljit_s32 src, sljit_sw srcw)
2014 {
2015 	SLJIT_UNUSED_ARG(compiler);
2016 	SLJIT_UNUSED_ARG(op);
2017 	SLJIT_UNUSED_ARG(dst);
2018 	SLJIT_UNUSED_ARG(dstw);
2019 	SLJIT_UNUSED_ARG(src);
2020 	SLJIT_UNUSED_ARG(srcw);
2021 	SLJIT_UNREACHABLE();
2022 	return SLJIT_ERR_UNSUPPORTED;
2023 }
2024 
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)2025 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_op2(struct sljit_compiler *compiler, sljit_s32 op,
2026 	sljit_s32 dst, sljit_sw dstw,
2027 	sljit_s32 src1, sljit_sw src1w,
2028 	sljit_s32 src2, sljit_sw src2w)
2029 {
2030 	SLJIT_UNUSED_ARG(compiler);
2031 	SLJIT_UNUSED_ARG(op);
2032 	SLJIT_UNUSED_ARG(dst);
2033 	SLJIT_UNUSED_ARG(dstw);
2034 	SLJIT_UNUSED_ARG(src1);
2035 	SLJIT_UNUSED_ARG(src1w);
2036 	SLJIT_UNUSED_ARG(src2);
2037 	SLJIT_UNUSED_ARG(src2w);
2038 	SLJIT_UNREACHABLE();
2039 	return SLJIT_ERR_UNSUPPORTED;
2040 }
2041 
sljit_get_register_index(sljit_s32 reg)2042 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_get_register_index(sljit_s32 reg)
2043 {
2044 	SLJIT_UNREACHABLE();
2045 	return reg;
2046 }
2047 
sljit_emit_op_custom(struct sljit_compiler * compiler,void * instruction,sljit_s32 size)2048 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_op_custom(struct sljit_compiler *compiler,
2049 	void *instruction, sljit_s32 size)
2050 {
2051 	SLJIT_UNUSED_ARG(compiler);
2052 	SLJIT_UNUSED_ARG(instruction);
2053 	SLJIT_UNUSED_ARG(size);
2054 	SLJIT_UNREACHABLE();
2055 	return SLJIT_ERR_UNSUPPORTED;
2056 }
2057 
sljit_set_current_flags(struct sljit_compiler * compiler,sljit_s32 current_flags)2058 SLJIT_API_FUNC_ATTRIBUTE void sljit_set_current_flags(struct sljit_compiler *compiler, sljit_s32 current_flags)
2059 {
2060 	SLJIT_UNUSED_ARG(compiler);
2061 	SLJIT_UNUSED_ARG(current_flags);
2062 }
2063 
sljit_emit_fop1(struct sljit_compiler * compiler,sljit_s32 op,sljit_s32 dst,sljit_sw dstw,sljit_s32 src,sljit_sw srcw)2064 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_fop1(struct sljit_compiler *compiler, sljit_s32 op,
2065 	sljit_s32 dst, sljit_sw dstw,
2066 	sljit_s32 src, sljit_sw srcw)
2067 {
2068 	SLJIT_UNUSED_ARG(compiler);
2069 	SLJIT_UNUSED_ARG(op);
2070 	SLJIT_UNUSED_ARG(dst);
2071 	SLJIT_UNUSED_ARG(dstw);
2072 	SLJIT_UNUSED_ARG(src);
2073 	SLJIT_UNUSED_ARG(srcw);
2074 	SLJIT_UNREACHABLE();
2075 	return SLJIT_ERR_UNSUPPORTED;
2076 }
2077 
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)2078 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_fop2(struct sljit_compiler *compiler, sljit_s32 op,
2079 	sljit_s32 dst, sljit_sw dstw,
2080 	sljit_s32 src1, sljit_sw src1w,
2081 	sljit_s32 src2, sljit_sw src2w)
2082 {
2083 	SLJIT_UNUSED_ARG(compiler);
2084 	SLJIT_UNUSED_ARG(op);
2085 	SLJIT_UNUSED_ARG(dst);
2086 	SLJIT_UNUSED_ARG(dstw);
2087 	SLJIT_UNUSED_ARG(src1);
2088 	SLJIT_UNUSED_ARG(src1w);
2089 	SLJIT_UNUSED_ARG(src2);
2090 	SLJIT_UNUSED_ARG(src2w);
2091 	SLJIT_UNREACHABLE();
2092 	return SLJIT_ERR_UNSUPPORTED;
2093 }
2094 
sljit_emit_label(struct sljit_compiler * compiler)2095 SLJIT_API_FUNC_ATTRIBUTE struct sljit_label* sljit_emit_label(struct sljit_compiler *compiler)
2096 {
2097 	SLJIT_UNUSED_ARG(compiler);
2098 	SLJIT_UNREACHABLE();
2099 	return NULL;
2100 }
2101 
sljit_emit_jump(struct sljit_compiler * compiler,sljit_s32 type)2102 SLJIT_API_FUNC_ATTRIBUTE struct sljit_jump* sljit_emit_jump(struct sljit_compiler *compiler, sljit_s32 type)
2103 {
2104 	SLJIT_UNUSED_ARG(compiler);
2105 	SLJIT_UNUSED_ARG(type);
2106 	SLJIT_UNREACHABLE();
2107 	return NULL;
2108 }
2109 
sljit_emit_cmp(struct sljit_compiler * compiler,sljit_s32 type,sljit_s32 src1,sljit_sw src1w,sljit_s32 src2,sljit_sw src2w)2110 SLJIT_API_FUNC_ATTRIBUTE struct sljit_jump* sljit_emit_cmp(struct sljit_compiler *compiler, sljit_s32 type,
2111 	sljit_s32 src1, sljit_sw src1w,
2112 	sljit_s32 src2, sljit_sw src2w)
2113 {
2114 	SLJIT_UNUSED_ARG(compiler);
2115 	SLJIT_UNUSED_ARG(type);
2116 	SLJIT_UNUSED_ARG(src1);
2117 	SLJIT_UNUSED_ARG(src1w);
2118 	SLJIT_UNUSED_ARG(src2);
2119 	SLJIT_UNUSED_ARG(src2w);
2120 	SLJIT_UNREACHABLE();
2121 	return NULL;
2122 }
2123 
sljit_emit_fcmp(struct sljit_compiler * compiler,sljit_s32 type,sljit_s32 src1,sljit_sw src1w,sljit_s32 src2,sljit_sw src2w)2124 SLJIT_API_FUNC_ATTRIBUTE struct sljit_jump* sljit_emit_fcmp(struct sljit_compiler *compiler, sljit_s32 type,
2125 	sljit_s32 src1, sljit_sw src1w,
2126 	sljit_s32 src2, sljit_sw src2w)
2127 {
2128 	SLJIT_UNUSED_ARG(compiler);
2129 	SLJIT_UNUSED_ARG(type);
2130 	SLJIT_UNUSED_ARG(src1);
2131 	SLJIT_UNUSED_ARG(src1w);
2132 	SLJIT_UNUSED_ARG(src2);
2133 	SLJIT_UNUSED_ARG(src2w);
2134 	SLJIT_UNREACHABLE();
2135 	return NULL;
2136 }
2137 
sljit_set_label(struct sljit_jump * jump,struct sljit_label * label)2138 SLJIT_API_FUNC_ATTRIBUTE void sljit_set_label(struct sljit_jump *jump, struct sljit_label* label)
2139 {
2140 	SLJIT_UNUSED_ARG(jump);
2141 	SLJIT_UNUSED_ARG(label);
2142 	SLJIT_UNREACHABLE();
2143 }
2144 
sljit_set_target(struct sljit_jump * jump,sljit_uw target)2145 SLJIT_API_FUNC_ATTRIBUTE void sljit_set_target(struct sljit_jump *jump, sljit_uw target)
2146 {
2147 	SLJIT_UNUSED_ARG(jump);
2148 	SLJIT_UNUSED_ARG(target);
2149 	SLJIT_UNREACHABLE();
2150 }
2151 
sljit_emit_ijump(struct sljit_compiler * compiler,sljit_s32 type,sljit_s32 src,sljit_sw srcw)2152 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_ijump(struct sljit_compiler *compiler, sljit_s32 type, sljit_s32 src, sljit_sw srcw)
2153 {
2154 	SLJIT_UNUSED_ARG(compiler);
2155 	SLJIT_UNUSED_ARG(type);
2156 	SLJIT_UNUSED_ARG(src);
2157 	SLJIT_UNUSED_ARG(srcw);
2158 	SLJIT_UNREACHABLE();
2159 	return SLJIT_ERR_UNSUPPORTED;
2160 }
2161 
sljit_emit_op_flags(struct sljit_compiler * compiler,sljit_s32 op,sljit_s32 dst,sljit_sw dstw,sljit_s32 type)2162 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_op_flags(struct sljit_compiler *compiler, sljit_s32 op,
2163 	sljit_s32 dst, sljit_sw dstw,
2164 	sljit_s32 type)
2165 {
2166 	SLJIT_UNUSED_ARG(compiler);
2167 	SLJIT_UNUSED_ARG(op);
2168 	SLJIT_UNUSED_ARG(dst);
2169 	SLJIT_UNUSED_ARG(dstw);
2170 	SLJIT_UNUSED_ARG(type);
2171 	SLJIT_UNREACHABLE();
2172 	return SLJIT_ERR_UNSUPPORTED;
2173 }
2174 
sljit_emit_cmov(struct sljit_compiler * compiler,sljit_s32 type,sljit_s32 dst_reg,sljit_s32 src,sljit_sw srcw)2175 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_cmov(struct sljit_compiler *compiler, sljit_s32 type,
2176 	sljit_s32 dst_reg,
2177 	sljit_s32 src, sljit_sw srcw)
2178 {
2179 	SLJIT_UNUSED_ARG(compiler);
2180 	SLJIT_UNUSED_ARG(type);
2181 	SLJIT_UNUSED_ARG(dst_reg);
2182 	SLJIT_UNUSED_ARG(src);
2183 	SLJIT_UNUSED_ARG(srcw);
2184 	SLJIT_UNREACHABLE();
2185 	return SLJIT_ERR_UNSUPPORTED;
2186 }
2187 
sljit_get_local_base(struct sljit_compiler * compiler,sljit_s32 dst,sljit_sw dstw,sljit_sw offset)2188 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_get_local_base(struct sljit_compiler *compiler, sljit_s32 dst, sljit_sw dstw, sljit_sw offset)
2189 {
2190 	SLJIT_UNUSED_ARG(compiler);
2191 	SLJIT_UNUSED_ARG(dst);
2192 	SLJIT_UNUSED_ARG(dstw);
2193 	SLJIT_UNUSED_ARG(offset);
2194 	SLJIT_UNREACHABLE();
2195 	return SLJIT_ERR_UNSUPPORTED;
2196 }
2197 
sljit_emit_const(struct sljit_compiler * compiler,sljit_s32 dst,sljit_sw dstw,sljit_sw initval)2198 SLJIT_API_FUNC_ATTRIBUTE struct sljit_const* sljit_emit_const(struct sljit_compiler *compiler, sljit_s32 dst, sljit_sw dstw, sljit_sw initval)
2199 {
2200 	SLJIT_UNUSED_ARG(compiler);
2201 	SLJIT_UNUSED_ARG(dst);
2202 	SLJIT_UNUSED_ARG(dstw);
2203 	SLJIT_UNUSED_ARG(initval);
2204 	SLJIT_UNREACHABLE();
2205 	return NULL;
2206 }
2207 
sljit_set_jump_addr(sljit_uw addr,sljit_uw new_target,sljit_sw executable_offset)2208 SLJIT_API_FUNC_ATTRIBUTE void sljit_set_jump_addr(sljit_uw addr, sljit_uw new_target, sljit_sw executable_offset)
2209 {
2210 	SLJIT_UNUSED_ARG(addr);
2211 	SLJIT_UNUSED_ARG(new_target);
2212 	SLJIT_UNUSED_ARG(executable_offset);
2213 	SLJIT_UNREACHABLE();
2214 }
2215 
sljit_set_const(sljit_uw addr,sljit_sw new_constant,sljit_sw executable_offset)2216 SLJIT_API_FUNC_ATTRIBUTE void sljit_set_const(sljit_uw addr, sljit_sw new_constant, sljit_sw executable_offset)
2217 {
2218 	SLJIT_UNUSED_ARG(addr);
2219 	SLJIT_UNUSED_ARG(new_constant);
2220 	SLJIT_UNUSED_ARG(executable_offset);
2221 	SLJIT_UNREACHABLE();
2222 }
2223 
2224 #endif
2225