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_PTR(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(check_sljit_emit_enter(compiler, options, args, scratches, saveds, fscratches, fsaveds, local_size));
427 set_emit_enter(compiler, options, args, scratches, saveds, fscratches, fsaveds, local_size);
428
429 local_size = (local_size + SLJIT_LOCALS_OFFSET + 7) & ~0x7;
430 compiler->local_size = local_size;
431
432 if (local_size <= SIMM_MAX) {
433 FAIL_IF(push_inst(compiler, SAVE | D(SLJIT_SP) | S1(SLJIT_SP) | IMM(-local_size), UNMOVABLE_INS));
434 }
435 else {
436 FAIL_IF(load_immediate(compiler, TMP_REG1, -local_size));
437 FAIL_IF(push_inst(compiler, SAVE | D(SLJIT_SP) | S1(SLJIT_SP) | S2(TMP_REG1), UNMOVABLE_INS));
438 }
439
440 /* Arguments are in their appropriate registers. */
441
442 return SLJIT_SUCCESS;
443 }
444
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)445 SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_set_context(struct sljit_compiler *compiler,
446 sljit_si options, sljit_si args, sljit_si scratches, sljit_si saveds,
447 sljit_si fscratches, sljit_si fsaveds, sljit_si local_size)
448 {
449 CHECK_ERROR();
450 CHECK(check_sljit_set_context(compiler, options, args, scratches, saveds, fscratches, fsaveds, local_size));
451 set_set_context(compiler, options, args, scratches, saveds, fscratches, fsaveds, local_size);
452
453 compiler->local_size = (local_size + SLJIT_LOCALS_OFFSET + 7) & ~0x7;
454 return SLJIT_SUCCESS;
455 }
456
sljit_emit_return(struct sljit_compiler * compiler,sljit_si op,sljit_si src,sljit_sw srcw)457 SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_return(struct sljit_compiler *compiler, sljit_si op, sljit_si src, sljit_sw srcw)
458 {
459 CHECK_ERROR();
460 CHECK(check_sljit_emit_return(compiler, op, src, srcw));
461
462 if (op != SLJIT_MOV || !FAST_IS_REG(src)) {
463 FAIL_IF(emit_mov_before_return(compiler, op, src, srcw));
464 src = SLJIT_R0;
465 }
466
467 FAIL_IF(push_inst(compiler, JMPL | D(0) | S1A(31) | IMM(8), UNMOVABLE_INS));
468 return push_inst(compiler, RESTORE | D(SLJIT_R0) | S1(src) | S2(0), UNMOVABLE_INS);
469 }
470
471 /* --------------------------------------------------------------------- */
472 /* Operators */
473 /* --------------------------------------------------------------------- */
474
475 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32)
476 #define ARCH_32_64(a, b) a
477 #else
478 #define ARCH_32_64(a, b) b
479 #endif
480
481 static SLJIT_CONST sljit_ins data_transfer_insts[16 + 4] = {
482 /* u w s */ ARCH_32_64(OPC1(3) | OPC3(0x04) /* stw */, OPC1(3) | OPC3(0x0e) /* stx */),
483 /* u w l */ ARCH_32_64(OPC1(3) | OPC3(0x00) /* lduw */, OPC1(3) | OPC3(0x0b) /* ldx */),
484 /* u b s */ OPC1(3) | OPC3(0x05) /* stb */,
485 /* u b l */ OPC1(3) | OPC3(0x01) /* ldub */,
486 /* u h s */ OPC1(3) | OPC3(0x06) /* sth */,
487 /* u h l */ OPC1(3) | OPC3(0x02) /* lduh */,
488 /* u i s */ OPC1(3) | OPC3(0x04) /* stw */,
489 /* u i l */ OPC1(3) | OPC3(0x00) /* lduw */,
490
491 /* s w s */ ARCH_32_64(OPC1(3) | OPC3(0x04) /* stw */, OPC1(3) | OPC3(0x0e) /* stx */),
492 /* s w l */ ARCH_32_64(OPC1(3) | OPC3(0x00) /* lduw */, OPC1(3) | OPC3(0x0b) /* ldx */),
493 /* s b s */ OPC1(3) | OPC3(0x05) /* stb */,
494 /* s b l */ OPC1(3) | OPC3(0x09) /* ldsb */,
495 /* s h s */ OPC1(3) | OPC3(0x06) /* sth */,
496 /* s h l */ OPC1(3) | OPC3(0x0a) /* ldsh */,
497 /* s i s */ OPC1(3) | OPC3(0x04) /* stw */,
498 /* s i l */ ARCH_32_64(OPC1(3) | OPC3(0x00) /* lduw */, OPC1(3) | OPC3(0x08) /* ldsw */),
499
500 /* d s */ OPC1(3) | OPC3(0x27),
501 /* d l */ OPC1(3) | OPC3(0x23),
502 /* s s */ OPC1(3) | OPC3(0x24),
503 /* s l */ OPC1(3) | OPC3(0x20),
504 };
505
506 #undef ARCH_32_64
507
508 /* 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)509 static sljit_si getput_arg_fast(struct sljit_compiler *compiler, sljit_si flags, sljit_si reg, sljit_si arg, sljit_sw argw)
510 {
511 SLJIT_ASSERT(arg & SLJIT_MEM);
512
513 if (!(flags & WRITE_BACK) || !(arg & REG_MASK)) {
514 if ((!(arg & OFFS_REG_MASK) && argw <= SIMM_MAX && argw >= SIMM_MIN)
515 || ((arg & OFFS_REG_MASK) && (argw & 0x3) == 0)) {
516 /* Works for both absoulte and relative addresses (immediate case). */
517 if (SLJIT_UNLIKELY(flags & ARG_TEST))
518 return 1;
519 FAIL_IF(push_inst(compiler, data_transfer_insts[flags & MEM_MASK]
520 | ((flags & MEM_MASK) <= GPR_REG ? D(reg) : DA(reg))
521 | S1(arg & REG_MASK) | ((arg & OFFS_REG_MASK) ? S2(OFFS_REG(arg)) : IMM(argw)),
522 ((flags & MEM_MASK) <= GPR_REG && (flags & LOAD_DATA)) ? DR(reg) : MOVABLE_INS));
523 return -1;
524 }
525 }
526 return 0;
527 }
528
529 /* See getput_arg below.
530 Note: can_cache is called only for binary operators. Those
531 operators always uses word arguments without write back. */
can_cache(sljit_si arg,sljit_sw argw,sljit_si next_arg,sljit_sw next_argw)532 static sljit_si can_cache(sljit_si arg, sljit_sw argw, sljit_si next_arg, sljit_sw next_argw)
533 {
534 SLJIT_ASSERT((arg & SLJIT_MEM) && (next_arg & SLJIT_MEM));
535
536 /* Simple operation except for updates. */
537 if (arg & OFFS_REG_MASK) {
538 argw &= 0x3;
539 SLJIT_ASSERT(argw);
540 next_argw &= 0x3;
541 if ((arg & OFFS_REG_MASK) == (next_arg & OFFS_REG_MASK) && argw == next_argw)
542 return 1;
543 return 0;
544 }
545
546 if (((next_argw - argw) <= SIMM_MAX && (next_argw - argw) >= SIMM_MIN))
547 return 1;
548 return 0;
549 }
550
551 /* 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)552 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)
553 {
554 sljit_si base, arg2, delay_slot;
555 sljit_ins dest;
556
557 SLJIT_ASSERT(arg & SLJIT_MEM);
558 if (!(next_arg & SLJIT_MEM)) {
559 next_arg = 0;
560 next_argw = 0;
561 }
562
563 base = arg & REG_MASK;
564 if (SLJIT_UNLIKELY(arg & OFFS_REG_MASK)) {
565 argw &= 0x3;
566 SLJIT_ASSERT(argw != 0);
567
568 /* Using the cache. */
569 if (((SLJIT_MEM | (arg & OFFS_REG_MASK)) == compiler->cache_arg) && (argw == compiler->cache_argw))
570 arg2 = TMP_REG3;
571 else {
572 if ((arg & OFFS_REG_MASK) == (next_arg & OFFS_REG_MASK) && argw == (next_argw & 0x3)) {
573 compiler->cache_arg = SLJIT_MEM | (arg & OFFS_REG_MASK);
574 compiler->cache_argw = argw;
575 arg2 = TMP_REG3;
576 }
577 else if ((flags & LOAD_DATA) && ((flags & MEM_MASK) <= GPR_REG) && reg != base && reg != OFFS_REG(arg))
578 arg2 = reg;
579 else /* It must be a mov operation, so tmp1 must be free to use. */
580 arg2 = TMP_REG1;
581 FAIL_IF(push_inst(compiler, SLL_W | D(arg2) | S1(OFFS_REG(arg)) | IMM_ARG | argw, DR(arg2)));
582 }
583 }
584 else {
585 /* Using the cache. */
586 if ((compiler->cache_arg == SLJIT_MEM) && (argw - compiler->cache_argw) <= SIMM_MAX && (argw - compiler->cache_argw) >= SIMM_MIN) {
587 if (argw != compiler->cache_argw) {
588 FAIL_IF(push_inst(compiler, ADD | D(TMP_REG3) | S1(TMP_REG3) | IMM(argw - compiler->cache_argw), DR(TMP_REG3)));
589 compiler->cache_argw = argw;
590 }
591 arg2 = TMP_REG3;
592 } else {
593 if ((next_argw - argw) <= SIMM_MAX && (next_argw - argw) >= SIMM_MIN) {
594 compiler->cache_arg = SLJIT_MEM;
595 compiler->cache_argw = argw;
596 arg2 = TMP_REG3;
597 }
598 else if ((flags & LOAD_DATA) && ((flags & MEM_MASK) <= GPR_REG) && reg != base)
599 arg2 = reg;
600 else /* It must be a mov operation, so tmp1 must be free to use. */
601 arg2 = TMP_REG1;
602 FAIL_IF(load_immediate(compiler, arg2, argw));
603 }
604 }
605
606 dest = ((flags & MEM_MASK) <= GPR_REG ? D(reg) : DA(reg));
607 delay_slot = ((flags & MEM_MASK) <= GPR_REG && (flags & LOAD_DATA)) ? DR(reg) : MOVABLE_INS;
608 if (!base)
609 return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | dest | S1(arg2) | IMM(0), delay_slot);
610 if (!(flags & WRITE_BACK))
611 return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | dest | S1(base) | S2(arg2), delay_slot);
612 FAIL_IF(push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | dest | S1(base) | S2(arg2), delay_slot));
613 return push_inst(compiler, ADD | D(base) | S1(base) | S2(arg2), DR(base));
614 }
615
emit_op_mem(struct sljit_compiler * compiler,sljit_si flags,sljit_si reg,sljit_si arg,sljit_sw argw)616 static SLJIT_INLINE sljit_si emit_op_mem(struct sljit_compiler *compiler, sljit_si flags, sljit_si reg, sljit_si arg, sljit_sw argw)
617 {
618 if (getput_arg_fast(compiler, flags, reg, arg, argw))
619 return compiler->error;
620 compiler->cache_arg = 0;
621 compiler->cache_argw = 0;
622 return getput_arg(compiler, flags, reg, arg, argw, 0, 0);
623 }
624
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)625 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)
626 {
627 if (getput_arg_fast(compiler, flags, reg, arg1, arg1w))
628 return compiler->error;
629 return getput_arg(compiler, flags, reg, arg1, arg1w, arg2, arg2w);
630 }
631
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)632 static sljit_si emit_op(struct sljit_compiler *compiler, sljit_si op, sljit_si flags,
633 sljit_si dst, sljit_sw dstw,
634 sljit_si src1, sljit_sw src1w,
635 sljit_si src2, sljit_sw src2w)
636 {
637 /* arg1 goes to TMP_REG1 or src reg
638 arg2 goes to TMP_REG2, imm or src reg
639 TMP_REG3 can be used for caching
640 result goes to TMP_REG2, so put result can use TMP_REG1 and TMP_REG3. */
641 sljit_si dst_r = TMP_REG2;
642 sljit_si src1_r;
643 sljit_sw src2_r = 0;
644 sljit_si sugg_src2_r = TMP_REG2;
645
646 if (!(flags & ALT_KEEP_CACHE)) {
647 compiler->cache_arg = 0;
648 compiler->cache_argw = 0;
649 }
650
651 if (SLJIT_UNLIKELY(dst == SLJIT_UNUSED)) {
652 if (op >= SLJIT_MOV && op <= SLJIT_MOVU_SI && !(src2 & SLJIT_MEM))
653 return SLJIT_SUCCESS;
654 }
655 else if (FAST_IS_REG(dst)) {
656 dst_r = dst;
657 flags |= REG_DEST;
658 if (op >= SLJIT_MOV && op <= SLJIT_MOVU_SI)
659 sugg_src2_r = dst_r;
660 }
661 else if ((dst & SLJIT_MEM) && !getput_arg_fast(compiler, flags | ARG_TEST, TMP_REG1, dst, dstw))
662 flags |= SLOW_DEST;
663
664 if (flags & IMM_OP) {
665 if ((src2 & SLJIT_IMM) && src2w) {
666 if (src2w <= SIMM_MAX && src2w >= SIMM_MIN) {
667 flags |= SRC2_IMM;
668 src2_r = src2w;
669 }
670 }
671 if (!(flags & SRC2_IMM) && (flags & CUMULATIVE_OP) && (src1 & SLJIT_IMM) && src1w) {
672 if (src1w <= SIMM_MAX && src1w >= SIMM_MIN) {
673 flags |= SRC2_IMM;
674 src2_r = src1w;
675
676 /* And swap arguments. */
677 src1 = src2;
678 src1w = src2w;
679 src2 = SLJIT_IMM;
680 /* src2w = src2_r unneeded. */
681 }
682 }
683 }
684
685 /* Source 1. */
686 if (FAST_IS_REG(src1))
687 src1_r = src1;
688 else if (src1 & SLJIT_IMM) {
689 if (src1w) {
690 FAIL_IF(load_immediate(compiler, TMP_REG1, src1w));
691 src1_r = TMP_REG1;
692 }
693 else
694 src1_r = 0;
695 }
696 else {
697 if (getput_arg_fast(compiler, flags | LOAD_DATA, TMP_REG1, src1, src1w))
698 FAIL_IF(compiler->error);
699 else
700 flags |= SLOW_SRC1;
701 src1_r = TMP_REG1;
702 }
703
704 /* Source 2. */
705 if (FAST_IS_REG(src2)) {
706 src2_r = src2;
707 flags |= REG2_SOURCE;
708 if (!(flags & REG_DEST) && op >= SLJIT_MOV && op <= SLJIT_MOVU_SI)
709 dst_r = src2_r;
710 }
711 else if (src2 & SLJIT_IMM) {
712 if (!(flags & SRC2_IMM)) {
713 if (src2w) {
714 FAIL_IF(load_immediate(compiler, sugg_src2_r, src2w));
715 src2_r = sugg_src2_r;
716 }
717 else {
718 src2_r = 0;
719 if ((op >= SLJIT_MOV && op <= SLJIT_MOVU_SI) && (dst & SLJIT_MEM))
720 dst_r = 0;
721 }
722 }
723 }
724 else {
725 if (getput_arg_fast(compiler, flags | LOAD_DATA, sugg_src2_r, src2, src2w))
726 FAIL_IF(compiler->error);
727 else
728 flags |= SLOW_SRC2;
729 src2_r = sugg_src2_r;
730 }
731
732 if ((flags & (SLOW_SRC1 | SLOW_SRC2)) == (SLOW_SRC1 | SLOW_SRC2)) {
733 SLJIT_ASSERT(src2_r == TMP_REG2);
734 if (!can_cache(src1, src1w, src2, src2w) && can_cache(src1, src1w, dst, dstw)) {
735 FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, TMP_REG2, src2, src2w, src1, src1w));
736 FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, TMP_REG1, src1, src1w, dst, dstw));
737 }
738 else {
739 FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, TMP_REG1, src1, src1w, src2, src2w));
740 FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, TMP_REG2, src2, src2w, dst, dstw));
741 }
742 }
743 else if (flags & SLOW_SRC1)
744 FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, TMP_REG1, src1, src1w, dst, dstw));
745 else if (flags & SLOW_SRC2)
746 FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, sugg_src2_r, src2, src2w, dst, dstw));
747
748 FAIL_IF(emit_single_op(compiler, op, flags, dst_r, src1_r, src2_r));
749
750 if (dst & SLJIT_MEM) {
751 if (!(flags & SLOW_DEST)) {
752 getput_arg_fast(compiler, flags, dst_r, dst, dstw);
753 return compiler->error;
754 }
755 return getput_arg(compiler, flags, dst_r, dst, dstw, 0, 0);
756 }
757
758 return SLJIT_SUCCESS;
759 }
760
sljit_emit_op0(struct sljit_compiler * compiler,sljit_si op)761 SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_op0(struct sljit_compiler *compiler, sljit_si op)
762 {
763 CHECK_ERROR();
764 CHECK(check_sljit_emit_op0(compiler, op));
765
766 op = GET_OPCODE(op);
767 switch (op) {
768 case SLJIT_BREAKPOINT:
769 return push_inst(compiler, TA, UNMOVABLE_INS);
770 case SLJIT_NOP:
771 return push_inst(compiler, NOP, UNMOVABLE_INS);
772 case SLJIT_LUMUL:
773 case SLJIT_LSMUL:
774 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32)
775 FAIL_IF(push_inst(compiler, (op == SLJIT_LUMUL ? UMUL : SMUL) | D(SLJIT_R0) | S1(SLJIT_R0) | S2(SLJIT_R1), DR(SLJIT_R0)));
776 return push_inst(compiler, RDY | D(SLJIT_R1), DR(SLJIT_R1));
777 #else
778 #error "Implementation required"
779 #endif
780 case SLJIT_LUDIV:
781 case SLJIT_LSDIV:
782 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32)
783 if (op == SLJIT_LUDIV)
784 FAIL_IF(push_inst(compiler, WRY | S1(0), MOVABLE_INS));
785 else {
786 FAIL_IF(push_inst(compiler, SRA | D(TMP_REG1) | S1(SLJIT_R0) | IMM(31), DR(TMP_REG1)));
787 FAIL_IF(push_inst(compiler, WRY | S1(TMP_REG1), MOVABLE_INS));
788 }
789 FAIL_IF(push_inst(compiler, OR | D(TMP_REG2) | S1(0) | S2(SLJIT_R0), DR(TMP_REG2)));
790 FAIL_IF(push_inst(compiler, (op == SLJIT_LUDIV ? UDIV : SDIV) | D(SLJIT_R0) | S1(SLJIT_R0) | S2(SLJIT_R1), DR(SLJIT_R0)));
791 FAIL_IF(push_inst(compiler, SMUL | D(SLJIT_R1) | S1(SLJIT_R0) | S2(SLJIT_R1), DR(SLJIT_R1)));
792 FAIL_IF(push_inst(compiler, SUB | D(SLJIT_R1) | S1(TMP_REG2) | S2(SLJIT_R1), DR(SLJIT_R1)));
793 return SLJIT_SUCCESS;
794 #else
795 #error "Implementation required"
796 #endif
797 }
798
799 return SLJIT_SUCCESS;
800 }
801
sljit_emit_op1(struct sljit_compiler * compiler,sljit_si op,sljit_si dst,sljit_sw dstw,sljit_si src,sljit_sw srcw)802 SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_op1(struct sljit_compiler *compiler, sljit_si op,
803 sljit_si dst, sljit_sw dstw,
804 sljit_si src, sljit_sw srcw)
805 {
806 sljit_si flags = GET_FLAGS(op) ? SET_FLAGS : 0;
807
808 CHECK_ERROR();
809 CHECK(check_sljit_emit_op1(compiler, op, dst, dstw, src, srcw));
810 ADJUST_LOCAL_OFFSET(dst, dstw);
811 ADJUST_LOCAL_OFFSET(src, srcw);
812
813 op = GET_OPCODE(op);
814 switch (op) {
815 case SLJIT_MOV:
816 case SLJIT_MOV_P:
817 return emit_op(compiler, SLJIT_MOV, flags | WORD_DATA, dst, dstw, TMP_REG1, 0, src, srcw);
818
819 case SLJIT_MOV_UI:
820 return emit_op(compiler, SLJIT_MOV_UI, flags | INT_DATA, dst, dstw, TMP_REG1, 0, src, srcw);
821
822 case SLJIT_MOV_SI:
823 return emit_op(compiler, SLJIT_MOV_SI, flags | INT_DATA | SIGNED_DATA, dst, dstw, TMP_REG1, 0, src, srcw);
824
825 case SLJIT_MOV_UB:
826 return emit_op(compiler, SLJIT_MOV_UB, flags | BYTE_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_ub)srcw : srcw);
827
828 case SLJIT_MOV_SB:
829 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);
830
831 case SLJIT_MOV_UH:
832 return emit_op(compiler, SLJIT_MOV_UH, flags | HALF_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_uh)srcw : srcw);
833
834 case SLJIT_MOV_SH:
835 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);
836
837 case SLJIT_MOVU:
838 case SLJIT_MOVU_P:
839 return emit_op(compiler, SLJIT_MOV, flags | WORD_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, srcw);
840
841 case SLJIT_MOVU_UI:
842 return emit_op(compiler, SLJIT_MOV_UI, flags | INT_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, srcw);
843
844 case SLJIT_MOVU_SI:
845 return emit_op(compiler, SLJIT_MOV_SI, flags | INT_DATA | SIGNED_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, srcw);
846
847 case SLJIT_MOVU_UB:
848 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);
849
850 case SLJIT_MOVU_SB:
851 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);
852
853 case SLJIT_MOVU_UH:
854 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);
855
856 case SLJIT_MOVU_SH:
857 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);
858
859 case SLJIT_NOT:
860 case SLJIT_CLZ:
861 return emit_op(compiler, op, flags, dst, dstw, TMP_REG1, 0, src, srcw);
862
863 case SLJIT_NEG:
864 return emit_op(compiler, SLJIT_SUB, flags | IMM_OP, dst, dstw, SLJIT_IMM, 0, src, srcw);
865 }
866
867 return SLJIT_SUCCESS;
868 }
869
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)870 SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_op2(struct sljit_compiler *compiler, sljit_si op,
871 sljit_si dst, sljit_sw dstw,
872 sljit_si src1, sljit_sw src1w,
873 sljit_si src2, sljit_sw src2w)
874 {
875 sljit_si flags = GET_FLAGS(op) ? SET_FLAGS : 0;
876
877 CHECK_ERROR();
878 CHECK(check_sljit_emit_op2(compiler, op, dst, dstw, src1, src1w, src2, src2w));
879 ADJUST_LOCAL_OFFSET(dst, dstw);
880 ADJUST_LOCAL_OFFSET(src1, src1w);
881 ADJUST_LOCAL_OFFSET(src2, src2w);
882
883 op = GET_OPCODE(op);
884 switch (op) {
885 case SLJIT_ADD:
886 case SLJIT_ADDC:
887 case SLJIT_MUL:
888 case SLJIT_AND:
889 case SLJIT_OR:
890 case SLJIT_XOR:
891 return emit_op(compiler, op, flags | CUMULATIVE_OP | IMM_OP, dst, dstw, src1, src1w, src2, src2w);
892
893 case SLJIT_SUB:
894 case SLJIT_SUBC:
895 return emit_op(compiler, op, flags | IMM_OP, dst, dstw, src1, src1w, src2, src2w);
896
897 case SLJIT_SHL:
898 case SLJIT_LSHR:
899 case SLJIT_ASHR:
900 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32)
901 if (src2 & SLJIT_IMM)
902 src2w &= 0x1f;
903 #else
904 SLJIT_ASSERT_STOP();
905 #endif
906 return emit_op(compiler, op, flags | IMM_OP, dst, dstw, src1, src1w, src2, src2w);
907 }
908
909 return SLJIT_SUCCESS;
910 }
911
sljit_get_register_index(sljit_si reg)912 SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_get_register_index(sljit_si reg)
913 {
914 CHECK_REG_INDEX(check_sljit_get_register_index(reg));
915 return reg_map[reg];
916 }
917
sljit_get_float_register_index(sljit_si reg)918 SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_get_float_register_index(sljit_si reg)
919 {
920 CHECK_REG_INDEX(check_sljit_get_float_register_index(reg));
921 return reg << 1;
922 }
923
sljit_emit_op_custom(struct sljit_compiler * compiler,void * instruction,sljit_si size)924 SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_op_custom(struct sljit_compiler *compiler,
925 void *instruction, sljit_si size)
926 {
927 CHECK_ERROR();
928 CHECK(check_sljit_emit_op_custom(compiler, instruction, size));
929
930 return push_inst(compiler, *(sljit_ins*)instruction, UNMOVABLE_INS);
931 }
932
933 /* --------------------------------------------------------------------- */
934 /* Floating point operators */
935 /* --------------------------------------------------------------------- */
936
sljit_is_fpu_available(void)937 SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_is_fpu_available(void)
938 {
939 #ifdef SLJIT_IS_FPU_AVAILABLE
940 return SLJIT_IS_FPU_AVAILABLE;
941 #else
942 /* Available by default. */
943 return 1;
944 #endif
945 }
946
947 #define FLOAT_DATA(op) (DOUBLE_DATA | ((op & SLJIT_SINGLE_OP) >> 7))
948 #define SELECT_FOP(op, single, double) ((op & SLJIT_SINGLE_OP) ? single : double)
949 #define FLOAT_TMP_MEM_OFFSET (22 * sizeof(sljit_sw))
950
sljit_emit_fop1_convw_fromd(struct sljit_compiler * compiler,sljit_si op,sljit_si dst,sljit_sw dstw,sljit_si src,sljit_sw srcw)951 static SLJIT_INLINE sljit_si sljit_emit_fop1_convw_fromd(struct sljit_compiler *compiler, sljit_si op,
952 sljit_si dst, sljit_sw dstw,
953 sljit_si src, sljit_sw srcw)
954 {
955 if (src & SLJIT_MEM) {
956 FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG1, src, srcw, dst, dstw));
957 src = TMP_FREG1;
958 }
959 else
960 src <<= 1;
961
962 FAIL_IF(push_inst(compiler, SELECT_FOP(op, FSTOI, FDTOI) | DA(TMP_FREG1) | S2A(src), MOVABLE_INS));
963
964 if (dst == SLJIT_UNUSED)
965 return SLJIT_SUCCESS;
966
967 if (FAST_IS_REG(dst)) {
968 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));
969 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);
970 }
971
972 /* Store the integer value from a VFP register. */
973 return emit_op_mem2(compiler, SINGLE_DATA, TMP_FREG1, dst, dstw, 0, 0);
974 }
975
sljit_emit_fop1_convd_fromw(struct sljit_compiler * compiler,sljit_si op,sljit_si dst,sljit_sw dstw,sljit_si src,sljit_sw srcw)976 static SLJIT_INLINE sljit_si sljit_emit_fop1_convd_fromw(struct sljit_compiler *compiler, sljit_si op,
977 sljit_si dst, sljit_sw dstw,
978 sljit_si src, sljit_sw srcw)
979 {
980 sljit_si dst_r = FAST_IS_REG(dst) ? (dst << 1) : TMP_FREG1;
981
982 if (src & SLJIT_IMM) {
983 #if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64)
984 if (GET_OPCODE(op) == SLJIT_CONVD_FROMI)
985 srcw = (sljit_si)srcw;
986 #endif
987 FAIL_IF(load_immediate(compiler, TMP_REG1, srcw));
988 src = TMP_REG1;
989 srcw = 0;
990 }
991
992 if (FAST_IS_REG(src)) {
993 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));
994 src = SLJIT_MEM1(SLJIT_SP);
995 srcw = FLOAT_TMP_MEM_OFFSET;
996 }
997
998 FAIL_IF(emit_op_mem2(compiler, SINGLE_DATA | LOAD_DATA, TMP_FREG1, src, srcw, dst, dstw));
999 FAIL_IF(push_inst(compiler, SELECT_FOP(op, FITOS, FITOD) | DA(dst_r) | S2A(TMP_FREG1), MOVABLE_INS));
1000
1001 if (dst & SLJIT_MEM)
1002 return emit_op_mem2(compiler, FLOAT_DATA(op), TMP_FREG1, dst, dstw, 0, 0);
1003 return SLJIT_SUCCESS;
1004 }
1005
sljit_emit_fop1_cmp(struct sljit_compiler * compiler,sljit_si op,sljit_si src1,sljit_sw src1w,sljit_si src2,sljit_sw src2w)1006 static SLJIT_INLINE sljit_si sljit_emit_fop1_cmp(struct sljit_compiler *compiler, sljit_si op,
1007 sljit_si src1, sljit_sw src1w,
1008 sljit_si src2, sljit_sw src2w)
1009 {
1010 if (src1 & SLJIT_MEM) {
1011 FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG1, src1, src1w, src2, src2w));
1012 src1 = TMP_FREG1;
1013 }
1014 else
1015 src1 <<= 1;
1016
1017 if (src2 & SLJIT_MEM) {
1018 FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG2, src2, src2w, 0, 0));
1019 src2 = TMP_FREG2;
1020 }
1021 else
1022 src2 <<= 1;
1023
1024 return push_inst(compiler, SELECT_FOP(op, FCMPS, FCMPD) | S1A(src1) | S2A(src2), FCC_IS_SET | MOVABLE_INS);
1025 }
1026
sljit_emit_fop1(struct sljit_compiler * compiler,sljit_si op,sljit_si dst,sljit_sw dstw,sljit_si src,sljit_sw srcw)1027 SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_fop1(struct sljit_compiler *compiler, sljit_si op,
1028 sljit_si dst, sljit_sw dstw,
1029 sljit_si src, sljit_sw srcw)
1030 {
1031 sljit_si dst_r;
1032
1033 CHECK_ERROR();
1034 compiler->cache_arg = 0;
1035 compiler->cache_argw = 0;
1036
1037 SLJIT_COMPILE_ASSERT((SLJIT_SINGLE_OP == 0x100) && !(DOUBLE_DATA & 0x2), float_transfer_bit_error);
1038 SELECT_FOP1_OPERATION_WITH_CHECKS(compiler, op, dst, dstw, src, srcw);
1039
1040 if (GET_OPCODE(op) == SLJIT_CONVD_FROMS)
1041 op ^= SLJIT_SINGLE_OP;
1042
1043 dst_r = FAST_IS_REG(dst) ? (dst << 1) : TMP_FREG1;
1044
1045 if (src & SLJIT_MEM) {
1046 FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op) | LOAD_DATA, dst_r, src, srcw, dst, dstw));
1047 src = dst_r;
1048 }
1049 else
1050 src <<= 1;
1051
1052 switch (GET_OPCODE(op)) {
1053 case SLJIT_DMOV:
1054 if (src != dst_r) {
1055 if (dst_r != TMP_FREG1) {
1056 FAIL_IF(push_inst(compiler, FMOVS | DA(dst_r) | S2A(src), MOVABLE_INS));
1057 if (!(op & SLJIT_SINGLE_OP))
1058 FAIL_IF(push_inst(compiler, FMOVS | DA(dst_r | 1) | S2A(src | 1), MOVABLE_INS));
1059 }
1060 else
1061 dst_r = src;
1062 }
1063 break;
1064 case SLJIT_DNEG:
1065 FAIL_IF(push_inst(compiler, FNEGS | DA(dst_r) | S2A(src), MOVABLE_INS));
1066 if (dst_r != src && !(op & SLJIT_SINGLE_OP))
1067 FAIL_IF(push_inst(compiler, FMOVS | DA(dst_r | 1) | S2A(src | 1), MOVABLE_INS));
1068 break;
1069 case SLJIT_DABS:
1070 FAIL_IF(push_inst(compiler, FABSS | DA(dst_r) | S2A(src), MOVABLE_INS));
1071 if (dst_r != src && !(op & SLJIT_SINGLE_OP))
1072 FAIL_IF(push_inst(compiler, FMOVS | DA(dst_r | 1) | S2A(src | 1), MOVABLE_INS));
1073 break;
1074 case SLJIT_CONVD_FROMS:
1075 FAIL_IF(push_inst(compiler, SELECT_FOP(op, FSTOD, FDTOS) | DA(dst_r) | S2A(src), MOVABLE_INS));
1076 op ^= SLJIT_SINGLE_OP;
1077 break;
1078 }
1079
1080 if (dst & SLJIT_MEM)
1081 FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op), dst_r, dst, dstw, 0, 0));
1082 return SLJIT_SUCCESS;
1083 }
1084
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)1085 SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_fop2(struct sljit_compiler *compiler, sljit_si op,
1086 sljit_si dst, sljit_sw dstw,
1087 sljit_si src1, sljit_sw src1w,
1088 sljit_si src2, sljit_sw src2w)
1089 {
1090 sljit_si dst_r, flags = 0;
1091
1092 CHECK_ERROR();
1093 CHECK(check_sljit_emit_fop2(compiler, op, dst, dstw, src1, src1w, src2, src2w));
1094 ADJUST_LOCAL_OFFSET(dst, dstw);
1095 ADJUST_LOCAL_OFFSET(src1, src1w);
1096 ADJUST_LOCAL_OFFSET(src2, src2w);
1097
1098 compiler->cache_arg = 0;
1099 compiler->cache_argw = 0;
1100
1101 dst_r = FAST_IS_REG(dst) ? (dst << 1) : TMP_FREG2;
1102
1103 if (src1 & SLJIT_MEM) {
1104 if (getput_arg_fast(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG1, src1, src1w)) {
1105 FAIL_IF(compiler->error);
1106 src1 = TMP_FREG1;
1107 } else
1108 flags |= SLOW_SRC1;
1109 }
1110 else
1111 src1 <<= 1;
1112
1113 if (src2 & SLJIT_MEM) {
1114 if (getput_arg_fast(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG2, src2, src2w)) {
1115 FAIL_IF(compiler->error);
1116 src2 = TMP_FREG2;
1117 } else
1118 flags |= SLOW_SRC2;
1119 }
1120 else
1121 src2 <<= 1;
1122
1123 if ((flags & (SLOW_SRC1 | SLOW_SRC2)) == (SLOW_SRC1 | SLOW_SRC2)) {
1124 if (!can_cache(src1, src1w, src2, src2w) && can_cache(src1, src1w, dst, dstw)) {
1125 FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG2, src2, src2w, src1, src1w));
1126 FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG1, src1, src1w, dst, dstw));
1127 }
1128 else {
1129 FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG1, src1, src1w, src2, src2w));
1130 FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG2, src2, src2w, dst, dstw));
1131 }
1132 }
1133 else if (flags & SLOW_SRC1)
1134 FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG1, src1, src1w, dst, dstw));
1135 else if (flags & SLOW_SRC2)
1136 FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG2, src2, src2w, dst, dstw));
1137
1138 if (flags & SLOW_SRC1)
1139 src1 = TMP_FREG1;
1140 if (flags & SLOW_SRC2)
1141 src2 = TMP_FREG2;
1142
1143 switch (GET_OPCODE(op)) {
1144 case SLJIT_DADD:
1145 FAIL_IF(push_inst(compiler, SELECT_FOP(op, FADDS, FADDD) | DA(dst_r) | S1A(src1) | S2A(src2), MOVABLE_INS));
1146 break;
1147
1148 case SLJIT_DSUB:
1149 FAIL_IF(push_inst(compiler, SELECT_FOP(op, FSUBS, FSUBD) | DA(dst_r) | S1A(src1) | S2A(src2), MOVABLE_INS));
1150 break;
1151
1152 case SLJIT_DMUL:
1153 FAIL_IF(push_inst(compiler, SELECT_FOP(op, FMULS, FMULD) | DA(dst_r) | S1A(src1) | S2A(src2), MOVABLE_INS));
1154 break;
1155
1156 case SLJIT_DDIV:
1157 FAIL_IF(push_inst(compiler, SELECT_FOP(op, FDIVS, FDIVD) | DA(dst_r) | S1A(src1) | S2A(src2), MOVABLE_INS));
1158 break;
1159 }
1160
1161 if (dst_r == TMP_FREG2)
1162 FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op), TMP_FREG2, dst, dstw, 0, 0));
1163
1164 return SLJIT_SUCCESS;
1165 }
1166
1167 #undef FLOAT_DATA
1168 #undef SELECT_FOP
1169
1170 /* --------------------------------------------------------------------- */
1171 /* Other instructions */
1172 /* --------------------------------------------------------------------- */
1173
sljit_emit_fast_enter(struct sljit_compiler * compiler,sljit_si dst,sljit_sw dstw)1174 SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_fast_enter(struct sljit_compiler *compiler, sljit_si dst, sljit_sw dstw)
1175 {
1176 CHECK_ERROR();
1177 CHECK(check_sljit_emit_fast_enter(compiler, dst, dstw));
1178 ADJUST_LOCAL_OFFSET(dst, dstw);
1179
1180 /* For UNUSED dst. Uncommon, but possible. */
1181 if (dst == SLJIT_UNUSED)
1182 return SLJIT_SUCCESS;
1183
1184 if (FAST_IS_REG(dst))
1185 return push_inst(compiler, OR | D(dst) | S1(0) | S2(TMP_LINK), DR(dst));
1186
1187 /* Memory. */
1188 return emit_op_mem(compiler, WORD_DATA, TMP_LINK, dst, dstw);
1189 }
1190
sljit_emit_fast_return(struct sljit_compiler * compiler,sljit_si src,sljit_sw srcw)1191 SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_fast_return(struct sljit_compiler *compiler, sljit_si src, sljit_sw srcw)
1192 {
1193 CHECK_ERROR();
1194 CHECK(check_sljit_emit_fast_return(compiler, src, srcw));
1195 ADJUST_LOCAL_OFFSET(src, srcw);
1196
1197 if (FAST_IS_REG(src))
1198 FAIL_IF(push_inst(compiler, OR | D(TMP_LINK) | S1(0) | S2(src), DR(TMP_LINK)));
1199 else if (src & SLJIT_MEM)
1200 FAIL_IF(emit_op_mem(compiler, WORD_DATA | LOAD_DATA, TMP_LINK, src, srcw));
1201 else if (src & SLJIT_IMM)
1202 FAIL_IF(load_immediate(compiler, TMP_LINK, srcw));
1203
1204 FAIL_IF(push_inst(compiler, JMPL | D(0) | S1(TMP_LINK) | IMM(8), UNMOVABLE_INS));
1205 return push_inst(compiler, NOP, UNMOVABLE_INS);
1206 }
1207
1208 /* --------------------------------------------------------------------- */
1209 /* Conditional instructions */
1210 /* --------------------------------------------------------------------- */
1211
sljit_emit_label(struct sljit_compiler * compiler)1212 SLJIT_API_FUNC_ATTRIBUTE struct sljit_label* sljit_emit_label(struct sljit_compiler *compiler)
1213 {
1214 struct sljit_label *label;
1215
1216 CHECK_ERROR_PTR();
1217 CHECK_PTR(check_sljit_emit_label(compiler));
1218
1219 if (compiler->last_label && compiler->last_label->size == compiler->size)
1220 return compiler->last_label;
1221
1222 label = (struct sljit_label*)ensure_abuf(compiler, sizeof(struct sljit_label));
1223 PTR_FAIL_IF(!label);
1224 set_label(label, compiler);
1225 compiler->delay_slot = UNMOVABLE_INS;
1226 return label;
1227 }
1228
get_cc(sljit_si type)1229 static sljit_ins get_cc(sljit_si type)
1230 {
1231 switch (type) {
1232 case SLJIT_EQUAL:
1233 case SLJIT_MUL_NOT_OVERFLOW:
1234 case SLJIT_D_NOT_EQUAL: /* Unordered. */
1235 return DA(0x1);
1236
1237 case SLJIT_NOT_EQUAL:
1238 case SLJIT_MUL_OVERFLOW:
1239 case SLJIT_D_EQUAL:
1240 return DA(0x9);
1241
1242 case SLJIT_LESS:
1243 case SLJIT_D_GREATER: /* Unordered. */
1244 return DA(0x5);
1245
1246 case SLJIT_GREATER_EQUAL:
1247 case SLJIT_D_LESS_EQUAL:
1248 return DA(0xd);
1249
1250 case SLJIT_GREATER:
1251 case SLJIT_D_GREATER_EQUAL: /* Unordered. */
1252 return DA(0xc);
1253
1254 case SLJIT_LESS_EQUAL:
1255 case SLJIT_D_LESS:
1256 return DA(0x4);
1257
1258 case SLJIT_SIG_LESS:
1259 return DA(0x3);
1260
1261 case SLJIT_SIG_GREATER_EQUAL:
1262 return DA(0xb);
1263
1264 case SLJIT_SIG_GREATER:
1265 return DA(0xa);
1266
1267 case SLJIT_SIG_LESS_EQUAL:
1268 return DA(0x2);
1269
1270 case SLJIT_OVERFLOW:
1271 case SLJIT_D_UNORDERED:
1272 return DA(0x7);
1273
1274 case SLJIT_NOT_OVERFLOW:
1275 case SLJIT_D_ORDERED:
1276 return DA(0xf);
1277
1278 default:
1279 SLJIT_ASSERT_STOP();
1280 return DA(0x8);
1281 }
1282 }
1283
sljit_emit_jump(struct sljit_compiler * compiler,sljit_si type)1284 SLJIT_API_FUNC_ATTRIBUTE struct sljit_jump* sljit_emit_jump(struct sljit_compiler *compiler, sljit_si type)
1285 {
1286 struct sljit_jump *jump;
1287
1288 CHECK_ERROR_PTR();
1289 CHECK_PTR(check_sljit_emit_jump(compiler, type));
1290
1291 jump = (struct sljit_jump*)ensure_abuf(compiler, sizeof(struct sljit_jump));
1292 PTR_FAIL_IF(!jump);
1293 set_jump(jump, compiler, type & SLJIT_REWRITABLE_JUMP);
1294 type &= 0xff;
1295
1296 if (type < SLJIT_D_EQUAL) {
1297 jump->flags |= IS_COND;
1298 if (((compiler->delay_slot & DST_INS_MASK) != UNMOVABLE_INS) && !(compiler->delay_slot & ICC_IS_SET))
1299 jump->flags |= IS_MOVABLE;
1300 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32)
1301 PTR_FAIL_IF(push_inst(compiler, BICC | get_cc(type ^ 1) | 5, UNMOVABLE_INS));
1302 #else
1303 #error "Implementation required"
1304 #endif
1305 }
1306 else if (type < SLJIT_JUMP) {
1307 jump->flags |= IS_COND;
1308 if (((compiler->delay_slot & DST_INS_MASK) != UNMOVABLE_INS) && !(compiler->delay_slot & FCC_IS_SET))
1309 jump->flags |= IS_MOVABLE;
1310 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32)
1311 PTR_FAIL_IF(push_inst(compiler, FBFCC | get_cc(type ^ 1) | 5, UNMOVABLE_INS));
1312 #else
1313 #error "Implementation required"
1314 #endif
1315 } else {
1316 if ((compiler->delay_slot & DST_INS_MASK) != UNMOVABLE_INS)
1317 jump->flags |= IS_MOVABLE;
1318 if (type >= SLJIT_FAST_CALL)
1319 jump->flags |= IS_CALL;
1320 }
1321
1322 PTR_FAIL_IF(emit_const(compiler, TMP_REG2, 0));
1323 PTR_FAIL_IF(push_inst(compiler, JMPL | D(type >= SLJIT_FAST_CALL ? TMP_LINK : 0) | S1(TMP_REG2) | IMM(0), UNMOVABLE_INS));
1324 jump->addr = compiler->size;
1325 PTR_FAIL_IF(push_inst(compiler, NOP, UNMOVABLE_INS));
1326
1327 return jump;
1328 }
1329
sljit_emit_ijump(struct sljit_compiler * compiler,sljit_si type,sljit_si src,sljit_sw srcw)1330 SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_ijump(struct sljit_compiler *compiler, sljit_si type, sljit_si src, sljit_sw srcw)
1331 {
1332 struct sljit_jump *jump = NULL;
1333 sljit_si src_r;
1334
1335 CHECK_ERROR();
1336 CHECK(check_sljit_emit_ijump(compiler, type, src, srcw));
1337 ADJUST_LOCAL_OFFSET(src, srcw);
1338
1339 if (FAST_IS_REG(src))
1340 src_r = src;
1341 else if (src & SLJIT_IMM) {
1342 jump = (struct sljit_jump*)ensure_abuf(compiler, sizeof(struct sljit_jump));
1343 FAIL_IF(!jump);
1344 set_jump(jump, compiler, JUMP_ADDR);
1345 jump->u.target = srcw;
1346 if ((compiler->delay_slot & DST_INS_MASK) != UNMOVABLE_INS)
1347 jump->flags |= IS_MOVABLE;
1348 if (type >= SLJIT_FAST_CALL)
1349 jump->flags |= IS_CALL;
1350
1351 FAIL_IF(emit_const(compiler, TMP_REG2, 0));
1352 src_r = TMP_REG2;
1353 }
1354 else {
1355 FAIL_IF(emit_op_mem(compiler, WORD_DATA | LOAD_DATA, TMP_REG2, src, srcw));
1356 src_r = TMP_REG2;
1357 }
1358
1359 FAIL_IF(push_inst(compiler, JMPL | D(type >= SLJIT_FAST_CALL ? TMP_LINK : 0) | S1(src_r) | IMM(0), UNMOVABLE_INS));
1360 if (jump)
1361 jump->addr = compiler->size;
1362 return push_inst(compiler, NOP, UNMOVABLE_INS);
1363 }
1364
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)1365 SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_op_flags(struct sljit_compiler *compiler, sljit_si op,
1366 sljit_si dst, sljit_sw dstw,
1367 sljit_si src, sljit_sw srcw,
1368 sljit_si type)
1369 {
1370 sljit_si reg, flags = (GET_FLAGS(op) ? SET_FLAGS : 0);
1371
1372 CHECK_ERROR();
1373 CHECK(check_sljit_emit_op_flags(compiler, op, dst, dstw, src, srcw, type));
1374 ADJUST_LOCAL_OFFSET(dst, dstw);
1375
1376 if (dst == SLJIT_UNUSED)
1377 return SLJIT_SUCCESS;
1378
1379 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32)
1380 op = GET_OPCODE(op);
1381 reg = (op < SLJIT_ADD && FAST_IS_REG(dst)) ? dst : TMP_REG2;
1382
1383 compiler->cache_arg = 0;
1384 compiler->cache_argw = 0;
1385 if (op >= SLJIT_ADD && (src & SLJIT_MEM)) {
1386 ADJUST_LOCAL_OFFSET(src, srcw);
1387 FAIL_IF(emit_op_mem2(compiler, WORD_DATA | LOAD_DATA, TMP_REG1, src, srcw, dst, dstw));
1388 src = TMP_REG1;
1389 srcw = 0;
1390 }
1391
1392 type &= 0xff;
1393 if (type < SLJIT_D_EQUAL)
1394 FAIL_IF(push_inst(compiler, BICC | get_cc(type) | 3, UNMOVABLE_INS));
1395 else
1396 FAIL_IF(push_inst(compiler, FBFCC | get_cc(type) | 3, UNMOVABLE_INS));
1397
1398 FAIL_IF(push_inst(compiler, OR | D(reg) | S1(0) | IMM(1), UNMOVABLE_INS));
1399 FAIL_IF(push_inst(compiler, OR | D(reg) | S1(0) | IMM(0), UNMOVABLE_INS));
1400
1401 if (op >= SLJIT_ADD)
1402 return emit_op(compiler, op, flags | CUMULATIVE_OP | IMM_OP | ALT_KEEP_CACHE, dst, dstw, src, srcw, TMP_REG2, 0);
1403
1404 return (reg == TMP_REG2) ? emit_op_mem(compiler, WORD_DATA, TMP_REG2, dst, dstw) : SLJIT_SUCCESS;
1405 #else
1406 #error "Implementation required"
1407 #endif
1408 }
1409
sljit_emit_const(struct sljit_compiler * compiler,sljit_si dst,sljit_sw dstw,sljit_sw init_value)1410 SLJIT_API_FUNC_ATTRIBUTE struct sljit_const* sljit_emit_const(struct sljit_compiler *compiler, sljit_si dst, sljit_sw dstw, sljit_sw init_value)
1411 {
1412 sljit_si reg;
1413 struct sljit_const *const_;
1414
1415 CHECK_ERROR_PTR();
1416 CHECK_PTR(check_sljit_emit_const(compiler, dst, dstw, init_value));
1417 ADJUST_LOCAL_OFFSET(dst, dstw);
1418
1419 const_ = (struct sljit_const*)ensure_abuf(compiler, sizeof(struct sljit_const));
1420 PTR_FAIL_IF(!const_);
1421 set_const(const_, compiler);
1422
1423 reg = SLOW_IS_REG(dst) ? dst : TMP_REG2;
1424
1425 PTR_FAIL_IF(emit_const(compiler, reg, init_value));
1426
1427 if (dst & SLJIT_MEM)
1428 PTR_FAIL_IF(emit_op_mem(compiler, WORD_DATA, TMP_REG2, dst, dstw));
1429 return const_;
1430 }
1431
