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
sljit_get_platform_name(void)27 SLJIT_API_FUNC_ATTRIBUTE SLJIT_CONST char* sljit_get_platform_name(void)
28 {
29 return "SPARC" SLJIT_CPUINFO;
30 }
31
32 /* Length of an instruction word
33 Both for sparc-32 and sparc-64 */
34 typedef sljit_ui sljit_ins;
35
sparc_cache_flush(sljit_ins * from,sljit_ins * to)36 static void sparc_cache_flush(sljit_ins *from, sljit_ins *to)
37 {
38 #if defined(__SUNPRO_C) && __SUNPRO_C < 0x590
39 __asm (
40 /* if (from == to) return */
41 "cmp %i0, %i1\n"
42 "be .leave\n"
43 "nop\n"
44
45 /* loop until from >= to */
46 ".mainloop:\n"
47 "flush %i0\n"
48 "add %i0, 8, %i0\n"
49 "cmp %i0, %i1\n"
50 "bcs .mainloop\n"
51 "nop\n"
52
53 /* The comparison was done above. */
54 "bne .leave\n"
55 /* nop is not necessary here, since the
56 sub operation has no side effect. */
57 "sub %i0, 4, %i0\n"
58 "flush %i0\n"
59 ".leave:"
60 );
61 #else
62 if (SLJIT_UNLIKELY(from == to))
63 return;
64
65 do {
66 __asm__ volatile (
67 "flush %0\n"
68 : : "r"(from)
69 );
70 /* Operates at least on doubleword. */
71 from += 2;
72 } while (from < to);
73
74 if (from == to) {
75 /* Flush the last word. */
76 from --;
77 __asm__ volatile (
78 "flush %0\n"
79 : : "r"(from)
80 );
81 }
82 #endif
83 }
84
85 /* TMP_REG2 is not used by getput_arg */
86 #define TMP_REG1 (SLJIT_NUMBER_OF_REGISTERS + 2)
87 #define TMP_REG2 (SLJIT_NUMBER_OF_REGISTERS + 3)
88 #define TMP_REG3 (SLJIT_NUMBER_OF_REGISTERS + 4)
89 #define TMP_LINK (SLJIT_NUMBER_OF_REGISTERS + 5)
90
91 #define TMP_FREG1 (0)
92 #define TMP_FREG2 ((SLJIT_NUMBER_OF_FLOAT_REGISTERS + 1) << 1)
93
94 static SLJIT_CONST sljit_ub reg_map[SLJIT_NUMBER_OF_REGISTERS + 6] = {
95 0, 8, 9, 10, 13, 29, 28, 27, 23, 22, 21, 20, 19, 18, 17, 16, 26, 25, 24, 14, 1, 11, 12, 15
96 };
97
98 /* --------------------------------------------------------------------- */
99 /* Instrucion forms */
100 /* --------------------------------------------------------------------- */
101
102 #define D(d) (reg_map[d] << 25)
103 #define DA(d) ((d) << 25)
104 #define S1(s1) (reg_map[s1] << 14)
105 #define S2(s2) (reg_map[s2])
106 #define S1A(s1) ((s1) << 14)
107 #define S2A(s2) (s2)
108 #define IMM_ARG 0x2000
109 #define DOP(op) ((op) << 5)
110 #define IMM(imm) (((imm) & 0x1fff) | IMM_ARG)
111
112 #define DR(dr) (reg_map[dr])
113 #define OPC1(opcode) ((opcode) << 30)
114 #define OPC2(opcode) ((opcode) << 22)
115 #define OPC3(opcode) ((opcode) << 19)
116 #define SET_FLAGS OPC3(0x10)
117
118 #define ADD (OPC1(0x2) | OPC3(0x00))
119 #define ADDC (OPC1(0x2) | OPC3(0x08))
120 #define AND (OPC1(0x2) | OPC3(0x01))
121 #define ANDN (OPC1(0x2) | OPC3(0x05))
122 #define CALL (OPC1(0x1))
123 #define FABSS (OPC1(0x2) | OPC3(0x34) | DOP(0x09))
124 #define FADDD (OPC1(0x2) | OPC3(0x34) | DOP(0x42))
125 #define FADDS (OPC1(0x2) | OPC3(0x34) | DOP(0x41))
126 #define FCMPD (OPC1(0x2) | OPC3(0x35) | DOP(0x52))
127 #define FCMPS (OPC1(0x2) | OPC3(0x35) | DOP(0x51))
128 #define FDIVD (OPC1(0x2) | OPC3(0x34) | DOP(0x4e))
129 #define FDIVS (OPC1(0x2) | OPC3(0x34) | DOP(0x4d))
130 #define FDTOI (OPC1(0x2) | OPC3(0x34) | DOP(0xd2))
131 #define FDTOS (OPC1(0x2) | OPC3(0x34) | DOP(0xc6))
132 #define FITOD (OPC1(0x2) | OPC3(0x34) | DOP(0xc8))
133 #define FITOS (OPC1(0x2) | OPC3(0x34) | DOP(0xc4))
134 #define FMOVS (OPC1(0x2) | OPC3(0x34) | DOP(0x01))
135 #define FMULD (OPC1(0x2) | OPC3(0x34) | DOP(0x4a))
136 #define FMULS (OPC1(0x2) | OPC3(0x34) | DOP(0x49))
137 #define FNEGS (OPC1(0x2) | OPC3(0x34) | DOP(0x05))
138 #define FSTOD (OPC1(0x2) | OPC3(0x34) | DOP(0xc9))
139 #define FSTOI (OPC1(0x2) | OPC3(0x34) | DOP(0xd1))
140 #define FSUBD (OPC1(0x2) | OPC3(0x34) | DOP(0x46))
141 #define FSUBS (OPC1(0x2) | OPC3(0x34) | DOP(0x45))
142 #define JMPL (OPC1(0x2) | OPC3(0x38))
143 #define NOP (OPC1(0x0) | OPC2(0x04))
144 #define OR (OPC1(0x2) | OPC3(0x02))
145 #define ORN (OPC1(0x2) | OPC3(0x06))
146 #define RDY (OPC1(0x2) | OPC3(0x28) | S1A(0))
147 #define RESTORE (OPC1(0x2) | OPC3(0x3d))
148 #define SAVE (OPC1(0x2) | OPC3(0x3c))
149 #define SETHI (OPC1(0x0) | OPC2(0x04))
150 #define SLL (OPC1(0x2) | OPC3(0x25))
151 #define SLLX (OPC1(0x2) | OPC3(0x25) | (1 << 12))
152 #define SRA (OPC1(0x2) | OPC3(0x27))
153 #define SRAX (OPC1(0x2) | OPC3(0x27) | (1 << 12))
154 #define SRL (OPC1(0x2) | OPC3(0x26))
155 #define SRLX (OPC1(0x2) | OPC3(0x26) | (1 << 12))
156 #define SUB (OPC1(0x2) | OPC3(0x04))
157 #define SUBC (OPC1(0x2) | OPC3(0x0c))
158 #define TA (OPC1(0x2) | OPC3(0x3a) | (8 << 25))
159 #define WRY (OPC1(0x2) | OPC3(0x30) | DA(0))
160 #define XOR (OPC1(0x2) | OPC3(0x03))
161 #define XNOR (OPC1(0x2) | OPC3(0x07))
162
163 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32)
164 #define MAX_DISP (0x1fffff)
165 #define MIN_DISP (-0x200000)
166 #define DISP_MASK (0x3fffff)
167
168 #define BICC (OPC1(0x0) | OPC2(0x2))
169 #define FBFCC (OPC1(0x0) | OPC2(0x6))
170 #define SLL_W SLL
171 #define SDIV (OPC1(0x2) | OPC3(0x0f))
172 #define SMUL (OPC1(0x2) | OPC3(0x0b))
173 #define UDIV (OPC1(0x2) | OPC3(0x0e))
174 #define UMUL (OPC1(0x2) | OPC3(0x0a))
175 #else
176 #define SLL_W SLLX
177 #endif
178
179 #define SIMM_MAX (0x0fff)
180 #define SIMM_MIN (-0x1000)
181
182 /* dest_reg is the absolute name of the register
183 Useful for reordering instructions in the delay slot. */
push_inst(struct sljit_compiler * compiler,sljit_ins ins,sljit_si delay_slot)184 static sljit_si push_inst(struct sljit_compiler *compiler, sljit_ins ins, sljit_si delay_slot)
185 {
186 sljit_ins *ptr;
187 SLJIT_ASSERT((delay_slot & DST_INS_MASK) == UNMOVABLE_INS
188 || (delay_slot & DST_INS_MASK) == MOVABLE_INS
189 || (delay_slot & DST_INS_MASK) == ((ins >> 25) & 0x1f));
190 ptr = (sljit_ins*)ensure_buf(compiler, sizeof(sljit_ins));
191 FAIL_IF(!ptr);
192 *ptr = ins;
193 compiler->size++;
194 compiler->delay_slot = delay_slot;
195 return SLJIT_SUCCESS;
196 }
197
detect_jump_type(struct sljit_jump * jump,sljit_ins * code_ptr,sljit_ins * code)198 static SLJIT_INLINE sljit_ins* detect_jump_type(struct sljit_jump *jump, sljit_ins *code_ptr, sljit_ins *code)
199 {
200 sljit_sw diff;
201 sljit_uw target_addr;
202 sljit_ins *inst;
203 sljit_ins saved_inst;
204
205 if (jump->flags & SLJIT_REWRITABLE_JUMP)
206 return code_ptr;
207
208 if (jump->flags & JUMP_ADDR)
209 target_addr = jump->u.target;
210 else {
211 SLJIT_ASSERT(jump->flags & JUMP_LABEL);
212 target_addr = (sljit_uw)(code + jump->u.label->size);
213 }
214 inst = (sljit_ins*)jump->addr;
215
216 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32)
217 if (jump->flags & IS_CALL) {
218 /* Call is always patchable on sparc 32. */
219 jump->flags |= PATCH_CALL;
220 if (jump->flags & IS_MOVABLE) {
221 inst[0] = inst[-1];
222 inst[-1] = CALL;
223 jump->addr -= sizeof(sljit_ins);
224 return inst;
225 }
226 inst[0] = CALL;
227 inst[1] = NOP;
228 return inst + 1;
229 }
230 #else
231 /* Both calls and BPr instructions shall not pass this point. */
232 #error "Implementation required"
233 #endif
234
235 if (jump->flags & IS_COND)
236 inst--;
237
238 if (jump->flags & IS_MOVABLE) {
239 diff = ((sljit_sw)target_addr - (sljit_sw)(inst - 1)) >> 2;
240 if (diff <= MAX_DISP && diff >= MIN_DISP) {
241 jump->flags |= PATCH_B;
242 inst--;
243 if (jump->flags & IS_COND) {
244 saved_inst = inst[0];
245 inst[0] = inst[1] ^ (1 << 28);
246 inst[1] = saved_inst;
247 } else {
248 inst[1] = inst[0];
249 inst[0] = BICC | DA(0x8);
250 }
251 jump->addr = (sljit_uw)inst;
252 return inst + 1;
253 }
254 }
255
256 diff = ((sljit_sw)target_addr - (sljit_sw)(inst)) >> 2;
257 if (diff <= MAX_DISP && diff >= MIN_DISP) {
258 jump->flags |= PATCH_B;
259 if (jump->flags & IS_COND)
260 inst[0] ^= (1 << 28);
261 else
262 inst[0] = BICC | DA(0x8);
263 inst[1] = NOP;
264 jump->addr = (sljit_uw)inst;
265 return inst + 1;
266 }
267
268 return code_ptr;
269 }
270
sljit_generate_code(struct sljit_compiler * compiler)271 SLJIT_API_FUNC_ATTRIBUTE void* sljit_generate_code(struct sljit_compiler *compiler)
272 {
273 struct sljit_memory_fragment *buf;
274 sljit_ins *code;
275 sljit_ins *code_ptr;
276 sljit_ins *buf_ptr;
277 sljit_ins *buf_end;
278 sljit_uw word_count;
279 sljit_uw addr;
280
281 struct sljit_label *label;
282 struct sljit_jump *jump;
283 struct sljit_const *const_;
284
285 CHECK_ERROR_PTR();
286 check_sljit_generate_code(compiler);
287 reverse_buf(compiler);
288
289 code = (sljit_ins*)SLJIT_MALLOC_EXEC(compiler->size * sizeof(sljit_ins));
290 PTR_FAIL_WITH_EXEC_IF(code);
291 buf = compiler->buf;
292
293 code_ptr = code;
294 word_count = 0;
295 label = compiler->labels;
296 jump = compiler->jumps;
297 const_ = compiler->consts;
298 do {
299 buf_ptr = (sljit_ins*)buf->memory;
300 buf_end = buf_ptr + (buf->used_size >> 2);
301 do {
302 *code_ptr = *buf_ptr++;
303 SLJIT_ASSERT(!label || label->size >= word_count);
304 SLJIT_ASSERT(!jump || jump->addr >= word_count);
305 SLJIT_ASSERT(!const_ || const_->addr >= word_count);
306 /* These structures are ordered by their address. */
307 if (label && label->size == word_count) {
308 /* Just recording the address. */
309 label->addr = (sljit_uw)code_ptr;
310 label->size = code_ptr - code;
311 label = label->next;
312 }
313 if (jump && jump->addr == word_count) {
314 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32)
315 jump->addr = (sljit_uw)(code_ptr - 3);
316 #else
317 jump->addr = (sljit_uw)(code_ptr - 6);
318 #endif
319 code_ptr = detect_jump_type(jump, code_ptr, code);
320 jump = jump->next;
321 }
322 if (const_ && const_->addr == word_count) {
323 /* Just recording the address. */
324 const_->addr = (sljit_uw)code_ptr;
325 const_ = const_->next;
326 }
327 code_ptr ++;
328 word_count ++;
329 } while (buf_ptr < buf_end);
330
331 buf = buf->next;
332 } while (buf);
333
334 if (label && label->size == word_count) {
335 label->addr = (sljit_uw)code_ptr;
336 label->size = code_ptr - code;
337 label = label->next;
338 }
339
340 SLJIT_ASSERT(!label);
341 SLJIT_ASSERT(!jump);
342 SLJIT_ASSERT(!const_);
343 SLJIT_ASSERT(code_ptr - code <= (sljit_si)compiler->size);
344
345 jump = compiler->jumps;
346 while (jump) {
347 do {
348 addr = (jump->flags & JUMP_LABEL) ? jump->u.label->addr : jump->u.target;
349 buf_ptr = (sljit_ins*)jump->addr;
350
351 if (jump->flags & PATCH_CALL) {
352 addr = (sljit_sw)(addr - jump->addr) >> 2;
353 SLJIT_ASSERT((sljit_sw)addr <= 0x1fffffff && (sljit_sw)addr >= -0x20000000);
354 buf_ptr[0] = CALL | (addr & 0x3fffffff);
355 break;
356 }
357 if (jump->flags & PATCH_B) {
358 addr = (sljit_sw)(addr - jump->addr) >> 2;
359 SLJIT_ASSERT((sljit_sw)addr <= MAX_DISP && (sljit_sw)addr >= MIN_DISP);
360 buf_ptr[0] = (buf_ptr[0] & ~DISP_MASK) | (addr & DISP_MASK);
361 break;
362 }
363
364 /* Set the fields of immediate loads. */
365 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32)
366 buf_ptr[0] = (buf_ptr[0] & 0xffc00000) | ((addr >> 10) & 0x3fffff);
367 buf_ptr[1] = (buf_ptr[1] & 0xfffffc00) | (addr & 0x3ff);
368 #else
369 #error "Implementation required"
370 #endif
371 } while (0);
372 jump = jump->next;
373 }
374
375
376 compiler->error = SLJIT_ERR_COMPILED;
377 compiler->executable_size = (code_ptr - code) * sizeof(sljit_ins);
378 SLJIT_CACHE_FLUSH(code, code_ptr);
379 return code;
380 }
381
382 /* --------------------------------------------------------------------- */
383 /* Entry, exit */
384 /* --------------------------------------------------------------------- */
385
386 /* Creates an index in data_transfer_insts array. */
387 #define LOAD_DATA 0x01
388 #define WORD_DATA 0x00
389 #define BYTE_DATA 0x02
390 #define HALF_DATA 0x04
391 #define INT_DATA 0x06
392 #define SIGNED_DATA 0x08
393 /* Separates integer and floating point registers */
394 #define GPR_REG 0x0f
395 #define DOUBLE_DATA 0x10
396 #define SINGLE_DATA 0x12
397
398 #define MEM_MASK 0x1f
399
400 #define WRITE_BACK 0x00020
401 #define ARG_TEST 0x00040
402 #define ALT_KEEP_CACHE 0x00080
403 #define CUMULATIVE_OP 0x00100
404 #define IMM_OP 0x00200
405 #define SRC2_IMM 0x00400
406
407 #define REG_DEST 0x00800
408 #define REG2_SOURCE 0x01000
409 #define SLOW_SRC1 0x02000
410 #define SLOW_SRC2 0x04000
411 #define SLOW_DEST 0x08000
412
413 /* SET_FLAGS (0x10 << 19) also belong here! */
414
415 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32)
416 #include "sljitNativeSPARC_32.c"
417 #else
418 #include "sljitNativeSPARC_64.c"
419 #endif
420
sljit_emit_enter(struct sljit_compiler * compiler,sljit_si options,sljit_si args,sljit_si scratches,sljit_si saveds,sljit_si fscratches,sljit_si fsaveds,sljit_si local_size)421 SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_enter(struct sljit_compiler *compiler,
422 sljit_si options, sljit_si args, sljit_si scratches, sljit_si saveds,
423 sljit_si fscratches, sljit_si fsaveds, sljit_si local_size)
424 {
425 CHECK_ERROR();
426 check_sljit_emit_enter(compiler, options, args, scratches, saveds, fscratches, fsaveds, local_size);
427
428 compiler->options = options;
429 compiler->scratches = scratches;
430 compiler->saveds = saveds;
431 compiler->fscratches = fscratches;
432 compiler->fsaveds = fsaveds;
433 #if (defined SLJIT_DEBUG && SLJIT_DEBUG)
434 compiler->logical_local_size = local_size;
435 #endif
436
437 local_size = (local_size + FIXED_LOCALS_OFFSET + 7) & ~0x7;
438 compiler->local_size = local_size;
439
440 if (local_size <= SIMM_MAX) {
441 FAIL_IF(push_inst(compiler, SAVE | D(SLJIT_SP) | S1(SLJIT_SP) | IMM(-local_size), UNMOVABLE_INS));
442 }
443 else {
444 FAIL_IF(load_immediate(compiler, TMP_REG1, -local_size));
445 FAIL_IF(push_inst(compiler, SAVE | D(SLJIT_SP) | S1(SLJIT_SP) | S2(TMP_REG1), UNMOVABLE_INS));
446 }
447
448 /* Arguments are in their appropriate registers. */
449
450 return SLJIT_SUCCESS;
451 }
452
sljit_set_context(struct sljit_compiler * compiler,sljit_si options,sljit_si args,sljit_si scratches,sljit_si saveds,sljit_si fscratches,sljit_si fsaveds,sljit_si local_size)453 SLJIT_API_FUNC_ATTRIBUTE void sljit_set_context(struct sljit_compiler *compiler,
454 sljit_si options, sljit_si args, sljit_si scratches, sljit_si saveds,
455 sljit_si fscratches, sljit_si fsaveds, sljit_si local_size)
456 {
457 CHECK_ERROR_VOID();
458 check_sljit_set_context(compiler, options, args, scratches, saveds, fscratches, fsaveds, local_size);
459
460 compiler->options = options;
461 compiler->scratches = scratches;
462 compiler->saveds = saveds;
463 compiler->fscratches = fscratches;
464 compiler->fsaveds = fsaveds;
465 #if (defined SLJIT_DEBUG && SLJIT_DEBUG)
466 compiler->logical_local_size = local_size;
467 #endif
468
469 compiler->local_size = (local_size + FIXED_LOCALS_OFFSET + 7) & ~0x7;
470 }
471
sljit_emit_return(struct sljit_compiler * compiler,sljit_si op,sljit_si src,sljit_sw srcw)472 SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_return(struct sljit_compiler *compiler, sljit_si op, sljit_si src, sljit_sw srcw)
473 {
474 CHECK_ERROR();
475 check_sljit_emit_return(compiler, op, src, srcw);
476
477 if (op != SLJIT_MOV || !FAST_IS_REG(src)) {
478 FAIL_IF(emit_mov_before_return(compiler, op, src, srcw));
479 src = SLJIT_R0;
480 }
481
482 FAIL_IF(push_inst(compiler, JMPL | D(0) | S1A(31) | IMM(8), UNMOVABLE_INS));
483 return push_inst(compiler, RESTORE | D(SLJIT_R0) | S1(src) | S2(0), UNMOVABLE_INS);
484 }
485
486 /* --------------------------------------------------------------------- */
487 /* Operators */
488 /* --------------------------------------------------------------------- */
489
490 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32)
491 #define ARCH_32_64(a, b) a
492 #else
493 #define ARCH_32_64(a, b) b
494 #endif
495
496 static SLJIT_CONST sljit_ins data_transfer_insts[16 + 4] = {
497 /* u w s */ ARCH_32_64(OPC1(3) | OPC3(0x04) /* stw */, OPC1(3) | OPC3(0x0e) /* stx */),
498 /* u w l */ ARCH_32_64(OPC1(3) | OPC3(0x00) /* lduw */, OPC1(3) | OPC3(0x0b) /* ldx */),
499 /* u b s */ OPC1(3) | OPC3(0x05) /* stb */,
500 /* u b l */ OPC1(3) | OPC3(0x01) /* ldub */,
501 /* u h s */ OPC1(3) | OPC3(0x06) /* sth */,
502 /* u h l */ OPC1(3) | OPC3(0x02) /* lduh */,
503 /* u i s */ OPC1(3) | OPC3(0x04) /* stw */,
504 /* u i l */ OPC1(3) | OPC3(0x00) /* lduw */,
505
506 /* s w s */ ARCH_32_64(OPC1(3) | OPC3(0x04) /* stw */, OPC1(3) | OPC3(0x0e) /* stx */),
507 /* s w l */ ARCH_32_64(OPC1(3) | OPC3(0x00) /* lduw */, OPC1(3) | OPC3(0x0b) /* ldx */),
508 /* s b s */ OPC1(3) | OPC3(0x05) /* stb */,
509 /* s b l */ OPC1(3) | OPC3(0x09) /* ldsb */,
510 /* s h s */ OPC1(3) | OPC3(0x06) /* sth */,
511 /* s h l */ OPC1(3) | OPC3(0x0a) /* ldsh */,
512 /* s i s */ OPC1(3) | OPC3(0x04) /* stw */,
513 /* s i l */ ARCH_32_64(OPC1(3) | OPC3(0x00) /* lduw */, OPC1(3) | OPC3(0x08) /* ldsw */),
514
515 /* d s */ OPC1(3) | OPC3(0x27),
516 /* d l */ OPC1(3) | OPC3(0x23),
517 /* s s */ OPC1(3) | OPC3(0x24),
518 /* s l */ OPC1(3) | OPC3(0x20),
519 };
520
521 #undef ARCH_32_64
522
523 /* Can perform an operation using at most 1 instruction. */
getput_arg_fast(struct sljit_compiler * compiler,sljit_si flags,sljit_si reg,sljit_si arg,sljit_sw argw)524 static sljit_si getput_arg_fast(struct sljit_compiler *compiler, sljit_si flags, sljit_si reg, sljit_si arg, sljit_sw argw)
525 {
526 SLJIT_ASSERT(arg & SLJIT_MEM);
527
528 if (!(flags & WRITE_BACK) || !(arg & REG_MASK)) {
529 if ((!(arg & OFFS_REG_MASK) && argw <= SIMM_MAX && argw >= SIMM_MIN)
530 || ((arg & OFFS_REG_MASK) && (argw & 0x3) == 0)) {
531 /* Works for both absoulte and relative addresses (immediate case). */
532 if (SLJIT_UNLIKELY(flags & ARG_TEST))
533 return 1;
534 FAIL_IF(push_inst(compiler, data_transfer_insts[flags & MEM_MASK]
535 | ((flags & MEM_MASK) <= GPR_REG ? D(reg) : DA(reg))
536 | S1(arg & REG_MASK) | ((arg & OFFS_REG_MASK) ? S2(OFFS_REG(arg)) : IMM(argw)),
537 ((flags & MEM_MASK) <= GPR_REG && (flags & LOAD_DATA)) ? DR(reg) : MOVABLE_INS));
538 return -1;
539 }
540 }
541 return 0;
542 }
543
544 /* See getput_arg below.
545 Note: can_cache is called only for binary operators. Those
546 operators always uses word arguments without write back. */
can_cache(sljit_si arg,sljit_sw argw,sljit_si next_arg,sljit_sw next_argw)547 static sljit_si can_cache(sljit_si arg, sljit_sw argw, sljit_si next_arg, sljit_sw next_argw)
548 {
549 SLJIT_ASSERT((arg & SLJIT_MEM) && (next_arg & SLJIT_MEM));
550
551 /* Simple operation except for updates. */
552 if (arg & OFFS_REG_MASK) {
553 argw &= 0x3;
554 SLJIT_ASSERT(argw);
555 next_argw &= 0x3;
556 if ((arg & OFFS_REG_MASK) == (next_arg & OFFS_REG_MASK) && argw == next_argw)
557 return 1;
558 return 0;
559 }
560
561 if (((next_argw - argw) <= SIMM_MAX && (next_argw - argw) >= SIMM_MIN))
562 return 1;
563 return 0;
564 }
565
566 /* Emit the necessary instructions. See can_cache above. */
getput_arg(struct sljit_compiler * compiler,sljit_si flags,sljit_si reg,sljit_si arg,sljit_sw argw,sljit_si next_arg,sljit_sw next_argw)567 static sljit_si getput_arg(struct sljit_compiler *compiler, sljit_si flags, sljit_si reg, sljit_si arg, sljit_sw argw, sljit_si next_arg, sljit_sw next_argw)
568 {
569 sljit_si base, arg2, delay_slot;
570 sljit_ins dest;
571
572 SLJIT_ASSERT(arg & SLJIT_MEM);
573 if (!(next_arg & SLJIT_MEM)) {
574 next_arg = 0;
575 next_argw = 0;
576 }
577
578 base = arg & REG_MASK;
579 if (SLJIT_UNLIKELY(arg & OFFS_REG_MASK)) {
580 argw &= 0x3;
581 SLJIT_ASSERT(argw != 0);
582
583 /* Using the cache. */
584 if (((SLJIT_MEM | (arg & OFFS_REG_MASK)) == compiler->cache_arg) && (argw == compiler->cache_argw))
585 arg2 = TMP_REG3;
586 else {
587 if ((arg & OFFS_REG_MASK) == (next_arg & OFFS_REG_MASK) && argw == (next_argw & 0x3)) {
588 compiler->cache_arg = SLJIT_MEM | (arg & OFFS_REG_MASK);
589 compiler->cache_argw = argw;
590 arg2 = TMP_REG3;
591 }
592 else if ((flags & LOAD_DATA) && ((flags & MEM_MASK) <= GPR_REG) && reg != base && reg != OFFS_REG(arg))
593 arg2 = reg;
594 else /* It must be a mov operation, so tmp1 must be free to use. */
595 arg2 = TMP_REG1;
596 FAIL_IF(push_inst(compiler, SLL_W | D(arg2) | S1(OFFS_REG(arg)) | IMM_ARG | argw, DR(arg2)));
597 }
598 }
599 else {
600 /* Using the cache. */
601 if ((compiler->cache_arg == SLJIT_MEM) && (argw - compiler->cache_argw) <= SIMM_MAX && (argw - compiler->cache_argw) >= SIMM_MIN) {
602 if (argw != compiler->cache_argw) {
603 FAIL_IF(push_inst(compiler, ADD | D(TMP_REG3) | S1(TMP_REG3) | IMM(argw - compiler->cache_argw), DR(TMP_REG3)));
604 compiler->cache_argw = argw;
605 }
606 arg2 = TMP_REG3;
607 } else {
608 if ((next_argw - argw) <= SIMM_MAX && (next_argw - argw) >= SIMM_MIN) {
609 compiler->cache_arg = SLJIT_MEM;
610 compiler->cache_argw = argw;
611 arg2 = TMP_REG3;
612 }
613 else if ((flags & LOAD_DATA) && ((flags & MEM_MASK) <= GPR_REG) && reg != base)
614 arg2 = reg;
615 else /* It must be a mov operation, so tmp1 must be free to use. */
616 arg2 = TMP_REG1;
617 FAIL_IF(load_immediate(compiler, arg2, argw));
618 }
619 }
620
621 dest = ((flags & MEM_MASK) <= GPR_REG ? D(reg) : DA(reg));
622 delay_slot = ((flags & MEM_MASK) <= GPR_REG && (flags & LOAD_DATA)) ? DR(reg) : MOVABLE_INS;
623 if (!base)
624 return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | dest | S1(arg2) | IMM(0), delay_slot);
625 if (!(flags & WRITE_BACK))
626 return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | dest | S1(base) | S2(arg2), delay_slot);
627 FAIL_IF(push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | dest | S1(base) | S2(arg2), delay_slot));
628 return push_inst(compiler, ADD | D(base) | S1(base) | S2(arg2), DR(base));
629 }
630
emit_op_mem(struct sljit_compiler * compiler,sljit_si flags,sljit_si reg,sljit_si arg,sljit_sw argw)631 static SLJIT_INLINE sljit_si emit_op_mem(struct sljit_compiler *compiler, sljit_si flags, sljit_si reg, sljit_si arg, sljit_sw argw)
632 {
633 if (getput_arg_fast(compiler, flags, reg, arg, argw))
634 return compiler->error;
635 compiler->cache_arg = 0;
636 compiler->cache_argw = 0;
637 return getput_arg(compiler, flags, reg, arg, argw, 0, 0);
638 }
639
emit_op_mem2(struct sljit_compiler * compiler,sljit_si flags,sljit_si reg,sljit_si arg1,sljit_sw arg1w,sljit_si arg2,sljit_sw arg2w)640 static SLJIT_INLINE sljit_si emit_op_mem2(struct sljit_compiler *compiler, sljit_si flags, sljit_si reg, sljit_si arg1, sljit_sw arg1w, sljit_si arg2, sljit_sw arg2w)
641 {
642 if (getput_arg_fast(compiler, flags, reg, arg1, arg1w))
643 return compiler->error;
644 return getput_arg(compiler, flags, reg, arg1, arg1w, arg2, arg2w);
645 }
646
emit_op(struct sljit_compiler * compiler,sljit_si op,sljit_si flags,sljit_si dst,sljit_sw dstw,sljit_si src1,sljit_sw src1w,sljit_si src2,sljit_sw src2w)647 static sljit_si emit_op(struct sljit_compiler *compiler, sljit_si op, sljit_si flags,
648 sljit_si dst, sljit_sw dstw,
649 sljit_si src1, sljit_sw src1w,
650 sljit_si src2, sljit_sw src2w)
651 {
652 /* arg1 goes to TMP_REG1 or src reg
653 arg2 goes to TMP_REG2, imm or src reg
654 TMP_REG3 can be used for caching
655 result goes to TMP_REG2, so put result can use TMP_REG1 and TMP_REG3. */
656 sljit_si dst_r = TMP_REG2;
657 sljit_si src1_r;
658 sljit_sw src2_r = 0;
659 sljit_si sugg_src2_r = TMP_REG2;
660
661 if (!(flags & ALT_KEEP_CACHE)) {
662 compiler->cache_arg = 0;
663 compiler->cache_argw = 0;
664 }
665
666 if (SLJIT_UNLIKELY(dst == SLJIT_UNUSED)) {
667 if (op >= SLJIT_MOV && op <= SLJIT_MOVU_SI && !(src2 & SLJIT_MEM))
668 return SLJIT_SUCCESS;
669 }
670 else if (FAST_IS_REG(dst)) {
671 dst_r = dst;
672 flags |= REG_DEST;
673 if (op >= SLJIT_MOV && op <= SLJIT_MOVU_SI)
674 sugg_src2_r = dst_r;
675 }
676 else if ((dst & SLJIT_MEM) && !getput_arg_fast(compiler, flags | ARG_TEST, TMP_REG1, dst, dstw))
677 flags |= SLOW_DEST;
678
679 if (flags & IMM_OP) {
680 if ((src2 & SLJIT_IMM) && src2w) {
681 if (src2w <= SIMM_MAX && src2w >= SIMM_MIN) {
682 flags |= SRC2_IMM;
683 src2_r = src2w;
684 }
685 }
686 if (!(flags & SRC2_IMM) && (flags & CUMULATIVE_OP) && (src1 & SLJIT_IMM) && src1w) {
687 if (src1w <= SIMM_MAX && src1w >= SIMM_MIN) {
688 flags |= SRC2_IMM;
689 src2_r = src1w;
690
691 /* And swap arguments. */
692 src1 = src2;
693 src1w = src2w;
694 src2 = SLJIT_IMM;
695 /* src2w = src2_r unneeded. */
696 }
697 }
698 }
699
700 /* Source 1. */
701 if (FAST_IS_REG(src1))
702 src1_r = src1;
703 else if (src1 & SLJIT_IMM) {
704 if (src1w) {
705 FAIL_IF(load_immediate(compiler, TMP_REG1, src1w));
706 src1_r = TMP_REG1;
707 }
708 else
709 src1_r = 0;
710 }
711 else {
712 if (getput_arg_fast(compiler, flags | LOAD_DATA, TMP_REG1, src1, src1w))
713 FAIL_IF(compiler->error);
714 else
715 flags |= SLOW_SRC1;
716 src1_r = TMP_REG1;
717 }
718
719 /* Source 2. */
720 if (FAST_IS_REG(src2)) {
721 src2_r = src2;
722 flags |= REG2_SOURCE;
723 if (!(flags & REG_DEST) && op >= SLJIT_MOV && op <= SLJIT_MOVU_SI)
724 dst_r = src2_r;
725 }
726 else if (src2 & SLJIT_IMM) {
727 if (!(flags & SRC2_IMM)) {
728 if (src2w) {
729 FAIL_IF(load_immediate(compiler, sugg_src2_r, src2w));
730 src2_r = sugg_src2_r;
731 }
732 else {
733 src2_r = 0;
734 if ((op >= SLJIT_MOV && op <= SLJIT_MOVU_SI) && (dst & SLJIT_MEM))
735 dst_r = 0;
736 }
737 }
738 }
739 else {
740 if (getput_arg_fast(compiler, flags | LOAD_DATA, sugg_src2_r, src2, src2w))
741 FAIL_IF(compiler->error);
742 else
743 flags |= SLOW_SRC2;
744 src2_r = sugg_src2_r;
745 }
746
747 if ((flags & (SLOW_SRC1 | SLOW_SRC2)) == (SLOW_SRC1 | SLOW_SRC2)) {
748 SLJIT_ASSERT(src2_r == TMP_REG2);
749 if (!can_cache(src1, src1w, src2, src2w) && can_cache(src1, src1w, dst, dstw)) {
750 FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, TMP_REG2, src2, src2w, src1, src1w));
751 FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, TMP_REG1, src1, src1w, dst, dstw));
752 }
753 else {
754 FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, TMP_REG1, src1, src1w, src2, src2w));
755 FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, TMP_REG2, src2, src2w, dst, dstw));
756 }
757 }
758 else if (flags & SLOW_SRC1)
759 FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, TMP_REG1, src1, src1w, dst, dstw));
760 else if (flags & SLOW_SRC2)
761 FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, sugg_src2_r, src2, src2w, dst, dstw));
762
763 FAIL_IF(emit_single_op(compiler, op, flags, dst_r, src1_r, src2_r));
764
765 if (dst & SLJIT_MEM) {
766 if (!(flags & SLOW_DEST)) {
767 getput_arg_fast(compiler, flags, dst_r, dst, dstw);
768 return compiler->error;
769 }
770 return getput_arg(compiler, flags, dst_r, dst, dstw, 0, 0);
771 }
772
773 return SLJIT_SUCCESS;
774 }
775
sljit_emit_op0(struct sljit_compiler * compiler,sljit_si op)776 SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_op0(struct sljit_compiler *compiler, sljit_si op)
777 {
778 CHECK_ERROR();
779 check_sljit_emit_op0(compiler, op);
780
781 op = GET_OPCODE(op);
782 switch (op) {
783 case SLJIT_BREAKPOINT:
784 return push_inst(compiler, TA, UNMOVABLE_INS);
785 case SLJIT_NOP:
786 return push_inst(compiler, NOP, UNMOVABLE_INS);
787 case SLJIT_UMUL:
788 case SLJIT_SMUL:
789 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32)
790 FAIL_IF(push_inst(compiler, (op == SLJIT_UMUL ? UMUL : SMUL) | D(SLJIT_R0) | S1(SLJIT_R0) | S2(SLJIT_R1), DR(SLJIT_R0)));
791 return push_inst(compiler, RDY | D(SLJIT_R1), DR(SLJIT_R1));
792 #else
793 #error "Implementation required"
794 #endif
795 case SLJIT_UDIV:
796 case SLJIT_SDIV:
797 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32)
798 if (op == SLJIT_UDIV)
799 FAIL_IF(push_inst(compiler, WRY | S1(0), MOVABLE_INS));
800 else {
801 FAIL_IF(push_inst(compiler, SRA | D(TMP_REG1) | S1(SLJIT_R0) | IMM(31), DR(TMP_REG1)));
802 FAIL_IF(push_inst(compiler, WRY | S1(TMP_REG1), MOVABLE_INS));
803 }
804 FAIL_IF(push_inst(compiler, OR | D(TMP_REG2) | S1(0) | S2(SLJIT_R0), DR(TMP_REG2)));
805 FAIL_IF(push_inst(compiler, (op == SLJIT_UDIV ? UDIV : SDIV) | D(SLJIT_R0) | S1(SLJIT_R0) | S2(SLJIT_R1), DR(SLJIT_R0)));
806 FAIL_IF(push_inst(compiler, SMUL | D(SLJIT_R1) | S1(SLJIT_R0) | S2(SLJIT_R1), DR(SLJIT_R1)));
807 FAIL_IF(push_inst(compiler, SUB | D(SLJIT_R1) | S1(TMP_REG2) | S2(SLJIT_R1), DR(SLJIT_R1)));
808 return SLJIT_SUCCESS;
809 #else
810 #error "Implementation required"
811 #endif
812 }
813
814 return SLJIT_SUCCESS;
815 }
816
sljit_emit_op1(struct sljit_compiler * compiler,sljit_si op,sljit_si dst,sljit_sw dstw,sljit_si src,sljit_sw srcw)817 SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_op1(struct sljit_compiler *compiler, sljit_si op,
818 sljit_si dst, sljit_sw dstw,
819 sljit_si src, sljit_sw srcw)
820 {
821 sljit_si flags = GET_FLAGS(op) ? SET_FLAGS : 0;
822
823 CHECK_ERROR();
824 check_sljit_emit_op1(compiler, op, dst, dstw, src, srcw);
825 ADJUST_LOCAL_OFFSET(dst, dstw);
826 ADJUST_LOCAL_OFFSET(src, srcw);
827
828 op = GET_OPCODE(op);
829 switch (op) {
830 case SLJIT_MOV:
831 case SLJIT_MOV_P:
832 return emit_op(compiler, SLJIT_MOV, flags | WORD_DATA, dst, dstw, TMP_REG1, 0, src, srcw);
833
834 case SLJIT_MOV_UI:
835 return emit_op(compiler, SLJIT_MOV_UI, flags | INT_DATA, dst, dstw, TMP_REG1, 0, src, srcw);
836
837 case SLJIT_MOV_SI:
838 return emit_op(compiler, SLJIT_MOV_SI, flags | INT_DATA | SIGNED_DATA, dst, dstw, TMP_REG1, 0, src, srcw);
839
840 case SLJIT_MOV_UB:
841 return emit_op(compiler, SLJIT_MOV_UB, flags | BYTE_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_ub)srcw : srcw);
842
843 case SLJIT_MOV_SB:
844 return emit_op(compiler, SLJIT_MOV_SB, flags | BYTE_DATA | SIGNED_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_sb)srcw : srcw);
845
846 case SLJIT_MOV_UH:
847 return emit_op(compiler, SLJIT_MOV_UH, flags | HALF_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_uh)srcw : srcw);
848
849 case SLJIT_MOV_SH:
850 return emit_op(compiler, SLJIT_MOV_SH, flags | HALF_DATA | SIGNED_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_sh)srcw : srcw);
851
852 case SLJIT_MOVU:
853 case SLJIT_MOVU_P:
854 return emit_op(compiler, SLJIT_MOV, flags | WORD_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, srcw);
855
856 case SLJIT_MOVU_UI:
857 return emit_op(compiler, SLJIT_MOV_UI, flags | INT_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, srcw);
858
859 case SLJIT_MOVU_SI:
860 return emit_op(compiler, SLJIT_MOV_SI, flags | INT_DATA | SIGNED_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, srcw);
861
862 case SLJIT_MOVU_UB:
863 return emit_op(compiler, SLJIT_MOV_UB, flags | BYTE_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_ub)srcw : srcw);
864
865 case SLJIT_MOVU_SB:
866 return emit_op(compiler, SLJIT_MOV_SB, flags | BYTE_DATA | SIGNED_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_sb)srcw : srcw);
867
868 case SLJIT_MOVU_UH:
869 return emit_op(compiler, SLJIT_MOV_UH, flags | HALF_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_uh)srcw : srcw);
870
871 case SLJIT_MOVU_SH:
872 return emit_op(compiler, SLJIT_MOV_SH, flags | HALF_DATA | SIGNED_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_sh)srcw : srcw);
873
874 case SLJIT_NOT:
875 case SLJIT_CLZ:
876 return emit_op(compiler, op, flags, dst, dstw, TMP_REG1, 0, src, srcw);
877
878 case SLJIT_NEG:
879 return emit_op(compiler, SLJIT_SUB, flags | IMM_OP, dst, dstw, SLJIT_IMM, 0, src, srcw);
880 }
881
882 return SLJIT_SUCCESS;
883 }
884
sljit_emit_op2(struct sljit_compiler * compiler,sljit_si op,sljit_si dst,sljit_sw dstw,sljit_si src1,sljit_sw src1w,sljit_si src2,sljit_sw src2w)885 SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_op2(struct sljit_compiler *compiler, sljit_si op,
886 sljit_si dst, sljit_sw dstw,
887 sljit_si src1, sljit_sw src1w,
888 sljit_si src2, sljit_sw src2w)
889 {
890 sljit_si flags = GET_FLAGS(op) ? SET_FLAGS : 0;
891
892 CHECK_ERROR();
893 check_sljit_emit_op2(compiler, op, dst, dstw, src1, src1w, src2, src2w);
894 ADJUST_LOCAL_OFFSET(dst, dstw);
895 ADJUST_LOCAL_OFFSET(src1, src1w);
896 ADJUST_LOCAL_OFFSET(src2, src2w);
897
898 op = GET_OPCODE(op);
899 switch (op) {
900 case SLJIT_ADD:
901 case SLJIT_ADDC:
902 case SLJIT_MUL:
903 case SLJIT_AND:
904 case SLJIT_OR:
905 case SLJIT_XOR:
906 return emit_op(compiler, op, flags | CUMULATIVE_OP | IMM_OP, dst, dstw, src1, src1w, src2, src2w);
907
908 case SLJIT_SUB:
909 case SLJIT_SUBC:
910 return emit_op(compiler, op, flags | IMM_OP, dst, dstw, src1, src1w, src2, src2w);
911
912 case SLJIT_SHL:
913 case SLJIT_LSHR:
914 case SLJIT_ASHR:
915 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32)
916 if (src2 & SLJIT_IMM)
917 src2w &= 0x1f;
918 #else
919 SLJIT_ASSERT_STOP();
920 #endif
921 return emit_op(compiler, op, flags | IMM_OP, dst, dstw, src1, src1w, src2, src2w);
922 }
923
924 return SLJIT_SUCCESS;
925 }
926
sljit_get_register_index(sljit_si reg)927 SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_get_register_index(sljit_si reg)
928 {
929 check_sljit_get_register_index(reg);
930 return reg_map[reg];
931 }
932
sljit_get_float_register_index(sljit_si reg)933 SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_get_float_register_index(sljit_si reg)
934 {
935 check_sljit_get_float_register_index(reg);
936 return reg << 1;
937 }
938
sljit_emit_op_custom(struct sljit_compiler * compiler,void * instruction,sljit_si size)939 SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_op_custom(struct sljit_compiler *compiler,
940 void *instruction, sljit_si size)
941 {
942 CHECK_ERROR();
943 check_sljit_emit_op_custom(compiler, instruction, size);
944 SLJIT_ASSERT(size == 4);
945
946 return push_inst(compiler, *(sljit_ins*)instruction, UNMOVABLE_INS);
947 }
948
949 /* --------------------------------------------------------------------- */
950 /* Floating point operators */
951 /* --------------------------------------------------------------------- */
952
sljit_is_fpu_available(void)953 SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_is_fpu_available(void)
954 {
955 #ifdef SLJIT_IS_FPU_AVAILABLE
956 return SLJIT_IS_FPU_AVAILABLE;
957 #else
958 /* Available by default. */
959 return 1;
960 #endif
961 }
962
963 #define FLOAT_DATA(op) (DOUBLE_DATA | ((op & SLJIT_SINGLE_OP) >> 7))
964 #define SELECT_FOP(op, single, double) ((op & SLJIT_SINGLE_OP) ? single : double)
965 #define FLOAT_TMP_MEM_OFFSET (22 * sizeof(sljit_sw))
966
sljit_emit_fop1_convw_fromd(struct sljit_compiler * compiler,sljit_si op,sljit_si dst,sljit_sw dstw,sljit_si src,sljit_sw srcw)967 static SLJIT_INLINE sljit_si sljit_emit_fop1_convw_fromd(struct sljit_compiler *compiler, sljit_si op,
968 sljit_si dst, sljit_sw dstw,
969 sljit_si src, sljit_sw srcw)
970 {
971 if (src & SLJIT_MEM) {
972 FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG1, src, srcw, dst, dstw));
973 src = TMP_FREG1;
974 }
975 else
976 src <<= 1;
977
978 FAIL_IF(push_inst(compiler, SELECT_FOP(op, FSTOI, FDTOI) | DA(TMP_FREG1) | S2A(src), MOVABLE_INS));
979
980 if (dst == SLJIT_UNUSED)
981 return SLJIT_SUCCESS;
982
983 if (FAST_IS_REG(dst)) {
984 FAIL_IF(emit_op_mem2(compiler, SINGLE_DATA, TMP_FREG1, SLJIT_MEM1(SLJIT_SP), FLOAT_TMP_MEM_OFFSET, SLJIT_MEM1(SLJIT_SP), FLOAT_TMP_MEM_OFFSET));
985 return emit_op_mem2(compiler, WORD_DATA | LOAD_DATA, dst, SLJIT_MEM1(SLJIT_SP), FLOAT_TMP_MEM_OFFSET, SLJIT_MEM1(SLJIT_SP), FLOAT_TMP_MEM_OFFSET);
986 }
987
988 /* Store the integer value from a VFP register. */
989 return emit_op_mem2(compiler, SINGLE_DATA, TMP_FREG1, dst, dstw, 0, 0);
990 }
991
sljit_emit_fop1_convd_fromw(struct sljit_compiler * compiler,sljit_si op,sljit_si dst,sljit_sw dstw,sljit_si src,sljit_sw srcw)992 static SLJIT_INLINE sljit_si sljit_emit_fop1_convd_fromw(struct sljit_compiler *compiler, sljit_si op,
993 sljit_si dst, sljit_sw dstw,
994 sljit_si src, sljit_sw srcw)
995 {
996 sljit_si dst_r = FAST_IS_REG(dst) ? (dst << 1) : TMP_FREG1;
997
998 if (src & SLJIT_IMM) {
999 #if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64)
1000 if (GET_OPCODE(op) == SLJIT_CONVD_FROMI)
1001 srcw = (sljit_si)srcw;
1002 #endif
1003 FAIL_IF(load_immediate(compiler, TMP_REG1, srcw));
1004 src = TMP_REG1;
1005 srcw = 0;
1006 }
1007
1008 if (FAST_IS_REG(src)) {
1009 FAIL_IF(emit_op_mem2(compiler, WORD_DATA, src, SLJIT_MEM1(SLJIT_SP), FLOAT_TMP_MEM_OFFSET, SLJIT_MEM1(SLJIT_SP), FLOAT_TMP_MEM_OFFSET));
1010 src = SLJIT_MEM1(SLJIT_SP);
1011 srcw = FLOAT_TMP_MEM_OFFSET;
1012 }
1013
1014 FAIL_IF(emit_op_mem2(compiler, SINGLE_DATA | LOAD_DATA, TMP_FREG1, src, srcw, dst, dstw));
1015 FAIL_IF(push_inst(compiler, SELECT_FOP(op, FITOS, FITOD) | DA(dst_r) | S2A(TMP_FREG1), MOVABLE_INS));
1016
1017 if (dst & SLJIT_MEM)
1018 return emit_op_mem2(compiler, FLOAT_DATA(op), TMP_FREG1, dst, dstw, 0, 0);
1019 return SLJIT_SUCCESS;
1020 }
1021
sljit_emit_fop1_cmp(struct sljit_compiler * compiler,sljit_si op,sljit_si src1,sljit_sw src1w,sljit_si src2,sljit_sw src2w)1022 static SLJIT_INLINE sljit_si sljit_emit_fop1_cmp(struct sljit_compiler *compiler, sljit_si op,
1023 sljit_si src1, sljit_sw src1w,
1024 sljit_si src2, sljit_sw src2w)
1025 {
1026 if (src1 & SLJIT_MEM) {
1027 FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG1, src1, src1w, src2, src2w));
1028 src1 = TMP_FREG1;
1029 }
1030 else
1031 src1 <<= 1;
1032
1033 if (src2 & SLJIT_MEM) {
1034 FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG2, src2, src2w, 0, 0));
1035 src2 = TMP_FREG2;
1036 }
1037 else
1038 src2 <<= 1;
1039
1040 return push_inst(compiler, SELECT_FOP(op, FCMPS, FCMPD) | S1A(src1) | S2A(src2), FCC_IS_SET | MOVABLE_INS);
1041 }
1042
sljit_emit_fop1(struct sljit_compiler * compiler,sljit_si op,sljit_si dst,sljit_sw dstw,sljit_si src,sljit_sw srcw)1043 SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_fop1(struct sljit_compiler *compiler, sljit_si op,
1044 sljit_si dst, sljit_sw dstw,
1045 sljit_si src, sljit_sw srcw)
1046 {
1047 sljit_si dst_r;
1048
1049 CHECK_ERROR();
1050 compiler->cache_arg = 0;
1051 compiler->cache_argw = 0;
1052
1053 SLJIT_COMPILE_ASSERT((SLJIT_SINGLE_OP == 0x100) && !(DOUBLE_DATA & 0x2), float_transfer_bit_error);
1054 SELECT_FOP1_OPERATION_WITH_CHECKS(compiler, op, dst, dstw, src, srcw);
1055
1056 if (GET_OPCODE(op) == SLJIT_CONVD_FROMS)
1057 op ^= SLJIT_SINGLE_OP;
1058
1059 dst_r = FAST_IS_REG(dst) ? (dst << 1) : TMP_FREG1;
1060
1061 if (src & SLJIT_MEM) {
1062 FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op) | LOAD_DATA, dst_r, src, srcw, dst, dstw));
1063 src = dst_r;
1064 }
1065 else
1066 src <<= 1;
1067
1068 switch (GET_OPCODE(op)) {
1069 case SLJIT_MOVD:
1070 if (src != dst_r) {
1071 if (dst_r != TMP_FREG1) {
1072 FAIL_IF(push_inst(compiler, FMOVS | DA(dst_r) | S2A(src), MOVABLE_INS));
1073 if (!(op & SLJIT_SINGLE_OP))
1074 FAIL_IF(push_inst(compiler, FMOVS | DA(dst_r | 1) | S2A(src | 1), MOVABLE_INS));
1075 }
1076 else
1077 dst_r = src;
1078 }
1079 break;
1080 case SLJIT_NEGD:
1081 FAIL_IF(push_inst(compiler, FNEGS | DA(dst_r) | S2A(src), MOVABLE_INS));
1082 if (dst_r != src && !(op & SLJIT_SINGLE_OP))
1083 FAIL_IF(push_inst(compiler, FMOVS | DA(dst_r | 1) | S2A(src | 1), MOVABLE_INS));
1084 break;
1085 case SLJIT_ABSD:
1086 FAIL_IF(push_inst(compiler, FABSS | DA(dst_r) | S2A(src), MOVABLE_INS));
1087 if (dst_r != src && !(op & SLJIT_SINGLE_OP))
1088 FAIL_IF(push_inst(compiler, FMOVS | DA(dst_r | 1) | S2A(src | 1), MOVABLE_INS));
1089 break;
1090 case SLJIT_CONVD_FROMS:
1091 FAIL_IF(push_inst(compiler, SELECT_FOP(op, FSTOD, FDTOS) | DA(dst_r) | S2A(src), MOVABLE_INS));
1092 op ^= SLJIT_SINGLE_OP;
1093 break;
1094 }
1095
1096 if (dst & SLJIT_MEM)
1097 FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op), dst_r, dst, dstw, 0, 0));
1098 return SLJIT_SUCCESS;
1099 }
1100
sljit_emit_fop2(struct sljit_compiler * compiler,sljit_si op,sljit_si dst,sljit_sw dstw,sljit_si src1,sljit_sw src1w,sljit_si src2,sljit_sw src2w)1101 SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_fop2(struct sljit_compiler *compiler, sljit_si op,
1102 sljit_si dst, sljit_sw dstw,
1103 sljit_si src1, sljit_sw src1w,
1104 sljit_si src2, sljit_sw src2w)
1105 {
1106 sljit_si dst_r, flags = 0;
1107
1108 CHECK_ERROR();
1109 check_sljit_emit_fop2(compiler, op, dst, dstw, src1, src1w, src2, src2w);
1110 ADJUST_LOCAL_OFFSET(dst, dstw);
1111 ADJUST_LOCAL_OFFSET(src1, src1w);
1112 ADJUST_LOCAL_OFFSET(src2, src2w);
1113
1114 compiler->cache_arg = 0;
1115 compiler->cache_argw = 0;
1116
1117 dst_r = FAST_IS_REG(dst) ? (dst << 1) : TMP_FREG2;
1118
1119 if (src1 & SLJIT_MEM) {
1120 if (getput_arg_fast(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG1, src1, src1w)) {
1121 FAIL_IF(compiler->error);
1122 src1 = TMP_FREG1;
1123 } else
1124 flags |= SLOW_SRC1;
1125 }
1126 else
1127 src1 <<= 1;
1128
1129 if (src2 & SLJIT_MEM) {
1130 if (getput_arg_fast(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG2, src2, src2w)) {
1131 FAIL_IF(compiler->error);
1132 src2 = TMP_FREG2;
1133 } else
1134 flags |= SLOW_SRC2;
1135 }
1136 else
1137 src2 <<= 1;
1138
1139 if ((flags & (SLOW_SRC1 | SLOW_SRC2)) == (SLOW_SRC1 | SLOW_SRC2)) {
1140 if (!can_cache(src1, src1w, src2, src2w) && can_cache(src1, src1w, dst, dstw)) {
1141 FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG2, src2, src2w, src1, src1w));
1142 FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG1, src1, src1w, dst, dstw));
1143 }
1144 else {
1145 FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG1, src1, src1w, src2, src2w));
1146 FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG2, src2, src2w, dst, dstw));
1147 }
1148 }
1149 else if (flags & SLOW_SRC1)
1150 FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG1, src1, src1w, dst, dstw));
1151 else if (flags & SLOW_SRC2)
1152 FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG2, src2, src2w, dst, dstw));
1153
1154 if (flags & SLOW_SRC1)
1155 src1 = TMP_FREG1;
1156 if (flags & SLOW_SRC2)
1157 src2 = TMP_FREG2;
1158
1159 switch (GET_OPCODE(op)) {
1160 case SLJIT_ADDD:
1161 FAIL_IF(push_inst(compiler, SELECT_FOP(op, FADDS, FADDD) | DA(dst_r) | S1A(src1) | S2A(src2), MOVABLE_INS));
1162 break;
1163
1164 case SLJIT_SUBD:
1165 FAIL_IF(push_inst(compiler, SELECT_FOP(op, FSUBS, FSUBD) | DA(dst_r) | S1A(src1) | S2A(src2), MOVABLE_INS));
1166 break;
1167
1168 case SLJIT_MULD:
1169 FAIL_IF(push_inst(compiler, SELECT_FOP(op, FMULS, FMULD) | DA(dst_r) | S1A(src1) | S2A(src2), MOVABLE_INS));
1170 break;
1171
1172 case SLJIT_DIVD:
1173 FAIL_IF(push_inst(compiler, SELECT_FOP(op, FDIVS, FDIVD) | DA(dst_r) | S1A(src1) | S2A(src2), MOVABLE_INS));
1174 break;
1175 }
1176
1177 if (dst_r == TMP_FREG2)
1178 FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op), TMP_FREG2, dst, dstw, 0, 0));
1179
1180 return SLJIT_SUCCESS;
1181 }
1182
1183 #undef FLOAT_DATA
1184 #undef SELECT_FOP
1185
1186 /* --------------------------------------------------------------------- */
1187 /* Other instructions */
1188 /* --------------------------------------------------------------------- */
1189
sljit_emit_fast_enter(struct sljit_compiler * compiler,sljit_si dst,sljit_sw dstw)1190 SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_fast_enter(struct sljit_compiler *compiler, sljit_si dst, sljit_sw dstw)
1191 {
1192 CHECK_ERROR();
1193 check_sljit_emit_fast_enter(compiler, dst, dstw);
1194 ADJUST_LOCAL_OFFSET(dst, dstw);
1195
1196 /* For UNUSED dst. Uncommon, but possible. */
1197 if (dst == SLJIT_UNUSED)
1198 return SLJIT_SUCCESS;
1199
1200 if (FAST_IS_REG(dst))
1201 return push_inst(compiler, OR | D(dst) | S1(0) | S2(TMP_LINK), DR(dst));
1202
1203 /* Memory. */
1204 return emit_op_mem(compiler, WORD_DATA, TMP_LINK, dst, dstw);
1205 }
1206
sljit_emit_fast_return(struct sljit_compiler * compiler,sljit_si src,sljit_sw srcw)1207 SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_fast_return(struct sljit_compiler *compiler, sljit_si src, sljit_sw srcw)
1208 {
1209 CHECK_ERROR();
1210 check_sljit_emit_fast_return(compiler, src, srcw);
1211 ADJUST_LOCAL_OFFSET(src, srcw);
1212
1213 if (FAST_IS_REG(src))
1214 FAIL_IF(push_inst(compiler, OR | D(TMP_LINK) | S1(0) | S2(src), DR(TMP_LINK)));
1215 else if (src & SLJIT_MEM)
1216 FAIL_IF(emit_op_mem(compiler, WORD_DATA | LOAD_DATA, TMP_LINK, src, srcw));
1217 else if (src & SLJIT_IMM)
1218 FAIL_IF(load_immediate(compiler, TMP_LINK, srcw));
1219
1220 FAIL_IF(push_inst(compiler, JMPL | D(0) | S1(TMP_LINK) | IMM(8), UNMOVABLE_INS));
1221 return push_inst(compiler, NOP, UNMOVABLE_INS);
1222 }
1223
1224 /* --------------------------------------------------------------------- */
1225 /* Conditional instructions */
1226 /* --------------------------------------------------------------------- */
1227
sljit_emit_label(struct sljit_compiler * compiler)1228 SLJIT_API_FUNC_ATTRIBUTE struct sljit_label* sljit_emit_label(struct sljit_compiler *compiler)
1229 {
1230 struct sljit_label *label;
1231
1232 CHECK_ERROR_PTR();
1233 check_sljit_emit_label(compiler);
1234
1235 if (compiler->last_label && compiler->last_label->size == compiler->size)
1236 return compiler->last_label;
1237
1238 label = (struct sljit_label*)ensure_abuf(compiler, sizeof(struct sljit_label));
1239 PTR_FAIL_IF(!label);
1240 set_label(label, compiler);
1241 compiler->delay_slot = UNMOVABLE_INS;
1242 return label;
1243 }
1244
get_cc(sljit_si type)1245 static sljit_ins get_cc(sljit_si type)
1246 {
1247 switch (type) {
1248 case SLJIT_C_EQUAL:
1249 case SLJIT_C_MUL_NOT_OVERFLOW:
1250 return DA(0x1);
1251
1252 case SLJIT_C_NOT_EQUAL:
1253 case SLJIT_C_MUL_OVERFLOW:
1254 return DA(0x9);
1255
1256 case SLJIT_C_LESS:
1257 return DA(0x5);
1258
1259 case SLJIT_C_GREATER_EQUAL:
1260 return DA(0xd);
1261
1262 case SLJIT_C_GREATER:
1263 return DA(0xc);
1264
1265 case SLJIT_C_LESS_EQUAL:
1266 return DA(0x4);
1267
1268 case SLJIT_C_SIG_LESS:
1269 return DA(0x3);
1270
1271 case SLJIT_C_SIG_GREATER_EQUAL:
1272 return DA(0xb);
1273
1274 case SLJIT_C_SIG_GREATER:
1275 return DA(0xa);
1276
1277 case SLJIT_C_SIG_LESS_EQUAL:
1278 return DA(0x2);
1279
1280 case SLJIT_C_OVERFLOW:
1281 return DA(0x7);
1282
1283 case SLJIT_C_NOT_OVERFLOW:
1284 return DA(0xf);
1285
1286 case SLJIT_C_FLOAT_EQUAL:
1287 return DA(0x9);
1288
1289 case SLJIT_C_FLOAT_NOT_EQUAL: /* Unordered. */
1290 return DA(0x1);
1291
1292 case SLJIT_C_FLOAT_LESS:
1293 return DA(0x4);
1294
1295 case SLJIT_C_FLOAT_GREATER_EQUAL: /* Unordered. */
1296 return DA(0xc);
1297
1298 case SLJIT_C_FLOAT_LESS_EQUAL:
1299 return DA(0xd);
1300
1301 case SLJIT_C_FLOAT_GREATER: /* Unordered. */
1302 return DA(0x5);
1303
1304 case SLJIT_C_FLOAT_UNORDERED:
1305 return DA(0x7);
1306
1307 case SLJIT_C_FLOAT_ORDERED:
1308 return DA(0xf);
1309
1310 default:
1311 SLJIT_ASSERT_STOP();
1312 return DA(0x8);
1313 }
1314 }
1315
sljit_emit_jump(struct sljit_compiler * compiler,sljit_si type)1316 SLJIT_API_FUNC_ATTRIBUTE struct sljit_jump* sljit_emit_jump(struct sljit_compiler *compiler, sljit_si type)
1317 {
1318 struct sljit_jump *jump;
1319
1320 CHECK_ERROR_PTR();
1321 check_sljit_emit_jump(compiler, type);
1322
1323 jump = (struct sljit_jump*)ensure_abuf(compiler, sizeof(struct sljit_jump));
1324 PTR_FAIL_IF(!jump);
1325 set_jump(jump, compiler, type & SLJIT_REWRITABLE_JUMP);
1326 type &= 0xff;
1327
1328 if (type < SLJIT_C_FLOAT_EQUAL) {
1329 jump->flags |= IS_COND;
1330 if (((compiler->delay_slot & DST_INS_MASK) != UNMOVABLE_INS) && !(compiler->delay_slot & ICC_IS_SET))
1331 jump->flags |= IS_MOVABLE;
1332 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32)
1333 PTR_FAIL_IF(push_inst(compiler, BICC | get_cc(type ^ 1) | 5, UNMOVABLE_INS));
1334 #else
1335 #error "Implementation required"
1336 #endif
1337 }
1338 else if (type < SLJIT_JUMP) {
1339 jump->flags |= IS_COND;
1340 if (((compiler->delay_slot & DST_INS_MASK) != UNMOVABLE_INS) && !(compiler->delay_slot & FCC_IS_SET))
1341 jump->flags |= IS_MOVABLE;
1342 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32)
1343 PTR_FAIL_IF(push_inst(compiler, FBFCC | get_cc(type ^ 1) | 5, UNMOVABLE_INS));
1344 #else
1345 #error "Implementation required"
1346 #endif
1347 } else {
1348 if ((compiler->delay_slot & DST_INS_MASK) != UNMOVABLE_INS)
1349 jump->flags |= IS_MOVABLE;
1350 if (type >= SLJIT_FAST_CALL)
1351 jump->flags |= IS_CALL;
1352 }
1353
1354 PTR_FAIL_IF(emit_const(compiler, TMP_REG2, 0));
1355 PTR_FAIL_IF(push_inst(compiler, JMPL | D(type >= SLJIT_FAST_CALL ? TMP_LINK : 0) | S1(TMP_REG2) | IMM(0), UNMOVABLE_INS));
1356 jump->addr = compiler->size;
1357 PTR_FAIL_IF(push_inst(compiler, NOP, UNMOVABLE_INS));
1358
1359 return jump;
1360 }
1361
sljit_emit_ijump(struct sljit_compiler * compiler,sljit_si type,sljit_si src,sljit_sw srcw)1362 SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_ijump(struct sljit_compiler *compiler, sljit_si type, sljit_si src, sljit_sw srcw)
1363 {
1364 struct sljit_jump *jump = NULL;
1365 sljit_si src_r;
1366
1367 CHECK_ERROR();
1368 check_sljit_emit_ijump(compiler, type, src, srcw);
1369 ADJUST_LOCAL_OFFSET(src, srcw);
1370
1371 if (FAST_IS_REG(src))
1372 src_r = src;
1373 else if (src & SLJIT_IMM) {
1374 jump = (struct sljit_jump*)ensure_abuf(compiler, sizeof(struct sljit_jump));
1375 FAIL_IF(!jump);
1376 set_jump(jump, compiler, JUMP_ADDR);
1377 jump->u.target = srcw;
1378 if ((compiler->delay_slot & DST_INS_MASK) != UNMOVABLE_INS)
1379 jump->flags |= IS_MOVABLE;
1380 if (type >= SLJIT_FAST_CALL)
1381 jump->flags |= IS_CALL;
1382
1383 FAIL_IF(emit_const(compiler, TMP_REG2, 0));
1384 src_r = TMP_REG2;
1385 }
1386 else {
1387 FAIL_IF(emit_op_mem(compiler, WORD_DATA | LOAD_DATA, TMP_REG2, src, srcw));
1388 src_r = TMP_REG2;
1389 }
1390
1391 FAIL_IF(push_inst(compiler, JMPL | D(type >= SLJIT_FAST_CALL ? TMP_LINK : 0) | S1(src_r) | IMM(0), UNMOVABLE_INS));
1392 if (jump)
1393 jump->addr = compiler->size;
1394 return push_inst(compiler, NOP, UNMOVABLE_INS);
1395 }
1396
sljit_emit_op_flags(struct sljit_compiler * compiler,sljit_si op,sljit_si dst,sljit_sw dstw,sljit_si src,sljit_sw srcw,sljit_si type)1397 SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_op_flags(struct sljit_compiler *compiler, sljit_si op,
1398 sljit_si dst, sljit_sw dstw,
1399 sljit_si src, sljit_sw srcw,
1400 sljit_si type)
1401 {
1402 sljit_si reg, flags = (GET_FLAGS(op) ? SET_FLAGS : 0);
1403
1404 CHECK_ERROR();
1405 check_sljit_emit_op_flags(compiler, op, dst, dstw, src, srcw, type);
1406 ADJUST_LOCAL_OFFSET(dst, dstw);
1407
1408 if (dst == SLJIT_UNUSED)
1409 return SLJIT_SUCCESS;
1410
1411 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32)
1412 op = GET_OPCODE(op);
1413 reg = (op < SLJIT_ADD && FAST_IS_REG(dst)) ? dst : TMP_REG2;
1414
1415 compiler->cache_arg = 0;
1416 compiler->cache_argw = 0;
1417 if (op >= SLJIT_ADD && (src & SLJIT_MEM)) {
1418 ADJUST_LOCAL_OFFSET(src, srcw);
1419 FAIL_IF(emit_op_mem2(compiler, WORD_DATA | LOAD_DATA, TMP_REG1, src, srcw, dst, dstw));
1420 src = TMP_REG1;
1421 srcw = 0;
1422 }
1423
1424 if (type < SLJIT_C_FLOAT_EQUAL)
1425 FAIL_IF(push_inst(compiler, BICC | get_cc(type) | 3, UNMOVABLE_INS));
1426 else
1427 FAIL_IF(push_inst(compiler, FBFCC | get_cc(type) | 3, UNMOVABLE_INS));
1428
1429 FAIL_IF(push_inst(compiler, OR | D(reg) | S1(0) | IMM(1), UNMOVABLE_INS));
1430 FAIL_IF(push_inst(compiler, OR | D(reg) | S1(0) | IMM(0), UNMOVABLE_INS));
1431
1432 if (op >= SLJIT_ADD)
1433 return emit_op(compiler, op, flags | CUMULATIVE_OP | IMM_OP | ALT_KEEP_CACHE, dst, dstw, src, srcw, TMP_REG2, 0);
1434
1435 return (reg == TMP_REG2) ? emit_op_mem(compiler, WORD_DATA, TMP_REG2, dst, dstw) : SLJIT_SUCCESS;
1436 #else
1437 #error "Implementation required"
1438 #endif
1439 }
1440
sljit_emit_const(struct sljit_compiler * compiler,sljit_si dst,sljit_sw dstw,sljit_sw init_value)1441 SLJIT_API_FUNC_ATTRIBUTE struct sljit_const* sljit_emit_const(struct sljit_compiler *compiler, sljit_si dst, sljit_sw dstw, sljit_sw init_value)
1442 {
1443 sljit_si reg;
1444 struct sljit_const *const_;
1445
1446 CHECK_ERROR_PTR();
1447 check_sljit_emit_const(compiler, dst, dstw, init_value);
1448 ADJUST_LOCAL_OFFSET(dst, dstw);
1449
1450 const_ = (struct sljit_const*)ensure_abuf(compiler, sizeof(struct sljit_const));
1451 PTR_FAIL_IF(!const_);
1452 set_const(const_, compiler);
1453
1454 reg = SLOW_IS_REG(dst) ? dst : TMP_REG2;
1455
1456 PTR_FAIL_IF(emit_const(compiler, reg, init_value));
1457
1458 if (dst & SLJIT_MEM)
1459 PTR_FAIL_IF(emit_op_mem(compiler, WORD_DATA, TMP_REG2, dst, dstw));
1460 return const_;
1461 }
1462