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

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Revision 1182 - (show annotations)
Sun Oct 28 05:22:32 2012 UTC (6 years, 10 months ago) by zherczeg
File MIME type: text/plain
File size: 41343 byte(s)
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JIT compiler update.
1 /*
2 * Stack-less Just-In-Time compiler
3 *
4 * Copyright 2009-2012 Zoltan Herczeg (hzmester@freemail.hu). All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without modification, are
7 * permitted provided that the following conditions are met:
8 *
9 * 1. Redistributions of source code must retain the above copyright notice, this list of
10 * conditions and the following disclaimer.
11 *
12 * 2. Redistributions in binary form must reproduce the above copyright notice, this list
13 * of conditions and the following disclaimer in the documentation and/or other materials
14 * provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) AND CONTRIBUTORS ``AS IS'' AND ANY
17 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
19 * SHALL THE COPYRIGHT HOLDER(S) OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
21 * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
22 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
23 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
24 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27 SLJIT_API_FUNC_ATTRIBUTE SLJIT_CONST char* sljit_get_platform_name(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
36 static void sparc_cache_flush(sljit_ins *from, sljit_ins *to)
37 {
38 if (SLJIT_UNLIKELY(from == to))
39 return;
40
41 do {
42 __asm__ volatile (
43 "flush %0\n"
44 : : "r"(from)
45 );
46 /* Operates at least on doubleword. */
47 from += 2;
48 } while (from < to);
49
50 if (from == to) {
51 /* Flush the last word. */
52 to --;
53 __asm__ volatile (
54 "flush %0\n"
55 : : "r"(to)
56 );
57 }
58 }
59
60 /* TMP_REG2 is not used by getput_arg */
61 #define TMP_REG1 (SLJIT_NO_REGISTERS + 1)
62 #define TMP_REG2 (SLJIT_NO_REGISTERS + 2)
63 #define TMP_REG3 (SLJIT_NO_REGISTERS + 3)
64 #define TMP_REG4 (SLJIT_NO_REGISTERS + 4)
65 #define LINK_REG (SLJIT_NO_REGISTERS + 5)
66
67 #define TMP_FREG1 ((SLJIT_FLOAT_REG4 + 1) << 1)
68 #define TMP_FREG2 ((SLJIT_FLOAT_REG4 + 2) << 1)
69
70 static SLJIT_CONST sljit_ub reg_map[SLJIT_NO_REGISTERS + 7] = {
71 0, 8, 9, 10, 11, 12, 16, 17, 18, 19, 20, 14, 1, 24, 25, 26, 15
72 };
73
74 /* --------------------------------------------------------------------- */
75 /* Instrucion forms */
76 /* --------------------------------------------------------------------- */
77
78 #define D(d) (reg_map[d] << 25)
79 #define DA(d) ((d) << 25)
80 #define S1(s1) (reg_map[s1] << 14)
81 #define S2(s2) (reg_map[s2])
82 #define S1A(s1) ((s1) << 14)
83 #define S2A(s2) (s2)
84 #define IMM_ARG 0x2000
85 #define DOP(op) ((op) << 5)
86 #define IMM(imm) (((imm) & 0x1fff) | IMM_ARG)
87
88 #define DR(dr) (reg_map[dr])
89 #define OPC1(opcode) ((opcode) << 30)
90 #define OPC2(opcode) ((opcode) << 22)
91 #define OPC3(opcode) ((opcode) << 19)
92 #define SET_FLAGS OPC3(0x10)
93
94 #define ADD (OPC1(0x2) | OPC3(0x00))
95 #define ADDC (OPC1(0x2) | OPC3(0x08))
96 #define AND (OPC1(0x2) | OPC3(0x01))
97 #define ANDN (OPC1(0x2) | OPC3(0x05))
98 #define CALL (OPC1(0x1))
99 #define FABSS (OPC1(0x2) | OPC3(0x34) | DOP(0x09))
100 #define FADDD (OPC1(0x2) | OPC3(0x34) | DOP(0x42))
101 #define FCMPD (OPC1(0x2) | OPC3(0x35) | DOP(0x52))
102 #define FDIVD (OPC1(0x2) | OPC3(0x34) | DOP(0x4e))
103 #define FMOVS (OPC1(0x2) | OPC3(0x34) | DOP(0x01))
104 #define FMULD (OPC1(0x2) | OPC3(0x34) | DOP(0x4a))
105 #define FNEGS (OPC1(0x2) | OPC3(0x34) | DOP(0x05))
106 #define FSUBD (OPC1(0x2) | OPC3(0x34) | DOP(0x46))
107 #define JMPL (OPC1(0x2) | OPC3(0x38))
108 #define NOP (OPC1(0x0) | OPC2(0x04))
109 #define OR (OPC1(0x2) | OPC3(0x02))
110 #define ORN (OPC1(0x2) | OPC3(0x06))
111 #define RDY (OPC1(0x2) | OPC3(0x28) | S1A(0))
112 #define RESTORE (OPC1(0x2) | OPC3(0x3d))
113 #define SAVE (OPC1(0x2) | OPC3(0x3c))
114 #define SETHI (OPC1(0x0) | OPC2(0x04))
115 #define SLL (OPC1(0x2) | OPC3(0x25))
116 #define SLLX (OPC1(0x2) | OPC3(0x25) | (1 << 12))
117 #define SRA (OPC1(0x2) | OPC3(0x27))
118 #define SRAX (OPC1(0x2) | OPC3(0x27) | (1 << 12))
119 #define SRL (OPC1(0x2) | OPC3(0x26))
120 #define SRLX (OPC1(0x2) | OPC3(0x26) | (1 << 12))
121 #define SUB (OPC1(0x2) | OPC3(0x04))
122 #define SUBC (OPC1(0x2) | OPC3(0x0c))
123 #define TA (OPC1(0x2) | OPC3(0x3a) | (8 << 25))
124 #define WRY (OPC1(0x2) | OPC3(0x30) | DA(0))
125 #define XOR (OPC1(0x2) | OPC3(0x03))
126 #define XNOR (OPC1(0x2) | OPC3(0x07))
127
128 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32)
129 #define MAX_DISP (0x1fffff)
130 #define MIN_DISP (-0x200000)
131 #define DISP_MASK (0x3fffff)
132
133 #define BICC (OPC1(0x0) | OPC2(0x2))
134 #define FBFCC (OPC1(0x0) | OPC2(0x6))
135 #define SLL_W SLL
136 #define SDIV (OPC1(0x2) | OPC3(0x0f))
137 #define SMUL (OPC1(0x2) | OPC3(0x0b))
138 #define UDIV (OPC1(0x2) | OPC3(0x0e))
139 #define UMUL (OPC1(0x2) | OPC3(0x0a))
140 #else
141 #define SLL_W SLLX
142 #endif
143
144 #define SIMM_MAX (0x0fff)
145 #define SIMM_MIN (-0x1000)
146
147 /* dest_reg is the absolute name of the register
148 Useful for reordering instructions in the delay slot. */
149 static int push_inst(struct sljit_compiler *compiler, sljit_ins ins, int delay_slot)
150 {
151 SLJIT_ASSERT((delay_slot & DST_INS_MASK) == UNMOVABLE_INS
152 || (delay_slot & DST_INS_MASK) == MOVABLE_INS
153 || (delay_slot & DST_INS_MASK) == ((ins >> 25) & 0x1f));
154 sljit_ins *ptr = (sljit_ins*)ensure_buf(compiler, sizeof(sljit_ins));
155 FAIL_IF(!ptr);
156 *ptr = ins;
157 compiler->size++;
158 compiler->delay_slot = delay_slot;
159 return SLJIT_SUCCESS;
160 }
161
162 static SLJIT_INLINE sljit_ins* optimize_jump(struct sljit_jump *jump, sljit_ins *code_ptr, sljit_ins *code)
163 {
164 sljit_w diff;
165 sljit_uw target_addr;
166 sljit_ins *inst;
167 sljit_ins saved_inst;
168
169 if (jump->flags & SLJIT_REWRITABLE_JUMP)
170 return code_ptr;
171
172 if (jump->flags & JUMP_ADDR)
173 target_addr = jump->u.target;
174 else {
175 SLJIT_ASSERT(jump->flags & JUMP_LABEL);
176 target_addr = (sljit_uw)(code + jump->u.label->size);
177 }
178 inst = (sljit_ins*)jump->addr;
179
180 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32)
181 if (jump->flags & IS_CALL) {
182 /* Call is always patchable on sparc 32. */
183 jump->flags |= PATCH_CALL;
184 if (jump->flags & IS_MOVABLE) {
185 inst[0] = inst[-1];
186 inst[-1] = CALL;
187 jump->addr -= sizeof(sljit_ins);
188 return inst;
189 }
190 inst[0] = CALL;
191 inst[1] = NOP;
192 return inst + 1;
193 }
194 #else
195 /* Both calls and BPr instructions shall not pass this point. */
196 #error "Implementation required"
197 #endif
198
199 if (jump->flags & IS_COND)
200 inst--;
201
202 if (jump->flags & IS_MOVABLE) {
203 diff = ((sljit_w)target_addr - (sljit_w)(inst - 1)) >> 2;
204 if (diff <= MAX_DISP && diff >= MIN_DISP) {
205 jump->flags |= PATCH_B;
206 inst--;
207 if (jump->flags & IS_COND) {
208 saved_inst = inst[0];
209 inst[0] = inst[1] ^ (1 << 28);
210 inst[1] = saved_inst;
211 } else {
212 inst[1] = inst[0];
213 inst[0] = BICC | DA(0x8);
214 }
215 jump->addr = (sljit_uw)inst;
216 return inst + 1;
217 }
218 }
219
220 diff = ((sljit_w)target_addr - (sljit_w)(inst)) >> 2;
221 if (diff <= MAX_DISP && diff >= MIN_DISP) {
222 jump->flags |= PATCH_B;
223 if (jump->flags & IS_COND)
224 inst[0] ^= (1 << 28);
225 else
226 inst[0] = BICC | DA(0x8);
227 inst[1] = NOP;
228 jump->addr = (sljit_uw)inst;
229 return inst + 1;
230 }
231
232 return code_ptr;
233 }
234
235 SLJIT_API_FUNC_ATTRIBUTE void* sljit_generate_code(struct sljit_compiler *compiler)
236 {
237 struct sljit_memory_fragment *buf;
238 sljit_ins *code;
239 sljit_ins *code_ptr;
240 sljit_ins *buf_ptr;
241 sljit_ins *buf_end;
242 sljit_uw word_count;
243 sljit_uw addr;
244
245 struct sljit_label *label;
246 struct sljit_jump *jump;
247 struct sljit_const *const_;
248
249 CHECK_ERROR_PTR();
250 check_sljit_generate_code(compiler);
251 reverse_buf(compiler);
252
253 code = (sljit_ins*)SLJIT_MALLOC_EXEC(compiler->size * sizeof(sljit_ins));
254 PTR_FAIL_WITH_EXEC_IF(code);
255 buf = compiler->buf;
256
257 code_ptr = code;
258 word_count = 0;
259 label = compiler->labels;
260 jump = compiler->jumps;
261 const_ = compiler->consts;
262 do {
263 buf_ptr = (sljit_ins*)buf->memory;
264 buf_end = buf_ptr + (buf->used_size >> 2);
265 do {
266 *code_ptr = *buf_ptr++;
267 SLJIT_ASSERT(!label || label->size >= word_count);
268 SLJIT_ASSERT(!jump || jump->addr >= word_count);
269 SLJIT_ASSERT(!const_ || const_->addr >= word_count);
270 /* These structures are ordered by their address. */
271 if (label && label->size == word_count) {
272 /* Just recording the address. */
273 label->addr = (sljit_uw)code_ptr;
274 label->size = code_ptr - code;
275 label = label->next;
276 }
277 if (jump && jump->addr == word_count) {
278 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32)
279 jump->addr = (sljit_uw)(code_ptr - 3);
280 #else
281 jump->addr = (sljit_uw)(code_ptr - 6);
282 #endif
283 code_ptr = optimize_jump(jump, code_ptr, code);
284 jump = jump->next;
285 }
286 if (const_ && const_->addr == word_count) {
287 /* Just recording the address. */
288 const_->addr = (sljit_uw)code_ptr;
289 const_ = const_->next;
290 }
291 code_ptr ++;
292 word_count ++;
293 } while (buf_ptr < buf_end);
294
295 buf = buf->next;
296 } while (buf);
297
298 if (label && label->size == word_count) {
299 label->addr = (sljit_uw)code_ptr;
300 label->size = code_ptr - code;
301 label = label->next;
302 }
303
304 SLJIT_ASSERT(!label);
305 SLJIT_ASSERT(!jump);
306 SLJIT_ASSERT(!const_);
307 SLJIT_ASSERT(code_ptr - code <= (int)compiler->size);
308
309 jump = compiler->jumps;
310 while (jump) {
311 do {
312 addr = (jump->flags & JUMP_LABEL) ? jump->u.label->addr : jump->u.target;
313 buf_ptr = (sljit_ins*)jump->addr;
314
315 if (jump->flags & PATCH_CALL) {
316 addr = (sljit_w)(addr - jump->addr) >> 2;
317 SLJIT_ASSERT((sljit_w)addr <= 0x1fffffff && (sljit_w)addr >= -0x20000000);
318 buf_ptr[0] = CALL | (addr & 0x3fffffff);
319 break;
320 }
321 if (jump->flags & PATCH_B) {
322 addr = (sljit_w)(addr - jump->addr) >> 2;
323 SLJIT_ASSERT((sljit_w)addr <= MAX_DISP && (sljit_w)addr >= MIN_DISP);
324 buf_ptr[0] = (buf_ptr[0] & ~DISP_MASK) | (addr & DISP_MASK);
325 break;
326 }
327
328 /* Set the fields of immediate loads. */
329 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32)
330 buf_ptr[0] = (buf_ptr[0] & 0xffc00000) | ((addr >> 10) & 0x3fffff);
331 buf_ptr[1] = (buf_ptr[1] & 0xfffffc00) | (addr & 0x3ff);
332 #else
333 #error "Implementation required"
334 #endif
335 } while (0);
336 jump = jump->next;
337 }
338
339
340 compiler->error = SLJIT_ERR_COMPILED;
341 compiler->executable_size = compiler->size * sizeof(sljit_ins);
342 SLJIT_CACHE_FLUSH(code, code_ptr);
343 return code;
344 }
345
346 /* --------------------------------------------------------------------- */
347 /* Entry, exit */
348 /* --------------------------------------------------------------------- */
349
350 /* Creates an index in data_transfer_insts array. */
351 #define LOAD_DATA 0x01
352 #define WORD_DATA 0x00
353 #define BYTE_DATA 0x02
354 #define HALF_DATA 0x04
355 #define INT_DATA 0x06
356 #define SIGNED_DATA 0x08
357 /* Separates integer and floating point registers */
358 #define GPR_REG 0x0f
359 #define DOUBLE_DATA 0x10
360
361 #define MEM_MASK 0x1f
362
363 #define WRITE_BACK 0x00020
364 #define ARG_TEST 0x00040
365 #define CUMULATIVE_OP 0x00080
366 #define IMM_OP 0x00100
367 #define SRC2_IMM 0x00200
368
369 #define REG_DEST 0x00400
370 #define REG2_SOURCE 0x00800
371 #define SLOW_SRC1 0x01000
372 #define SLOW_SRC2 0x02000
373 #define SLOW_DEST 0x04000
374 /* SET_FLAGS (0x10 << 19) also belong here! */
375
376 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32)
377 #include "sljitNativeSPARC_32.c"
378 #else
379 #include "sljitNativeSPARC_64.c"
380 #endif
381
382 SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_enter(struct sljit_compiler *compiler, int args, int temporaries, int saveds, int local_size)
383 {
384 CHECK_ERROR();
385 check_sljit_emit_enter(compiler, args, temporaries, saveds, local_size);
386
387 compiler->temporaries = temporaries;
388 compiler->saveds = saveds;
389 #if (defined SLJIT_DEBUG && SLJIT_DEBUG)
390 compiler->logical_local_size = local_size;
391 #endif
392
393 local_size += 23 * sizeof(sljit_w);
394 local_size = (local_size + 7) & ~0x7;
395 compiler->local_size = local_size;
396
397 if (local_size <= SIMM_MAX) {
398 FAIL_IF(push_inst(compiler, SAVE | D(SLJIT_LOCALS_REG) | S1(SLJIT_LOCALS_REG) | IMM(-local_size), UNMOVABLE_INS));
399 }
400 else {
401 FAIL_IF(load_immediate(compiler, TMP_REG1, -local_size));
402 FAIL_IF(push_inst(compiler, SAVE | D(SLJIT_LOCALS_REG) | S1(SLJIT_LOCALS_REG) | S2(TMP_REG1), UNMOVABLE_INS));
403 }
404
405 if (args >= 1)
406 FAIL_IF(push_inst(compiler, OR | D(SLJIT_SAVED_REG1) | S1(0) | S2A(24), DR(SLJIT_SAVED_REG1)));
407 if (args >= 2)
408 FAIL_IF(push_inst(compiler, OR | D(SLJIT_SAVED_REG2) | S1(0) | S2A(25), DR(SLJIT_SAVED_REG2)));
409 if (args >= 3)
410 FAIL_IF(push_inst(compiler, OR | D(SLJIT_SAVED_REG3) | S1(0) | S2A(26), DR(SLJIT_SAVED_REG3)));
411
412 return SLJIT_SUCCESS;
413 }
414
415 SLJIT_API_FUNC_ATTRIBUTE void sljit_set_context(struct sljit_compiler *compiler, int args, int temporaries, int saveds, int local_size)
416 {
417 CHECK_ERROR_VOID();
418 check_sljit_set_context(compiler, args, temporaries, saveds, local_size);
419
420 compiler->temporaries = temporaries;
421 compiler->saveds = saveds;
422 #if (defined SLJIT_DEBUG && SLJIT_DEBUG)
423 compiler->logical_local_size = local_size;
424 #endif
425
426 local_size += 23 * sizeof(sljit_w);
427 compiler->local_size = (local_size + 7) & ~0x7;
428 }
429
430 SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_return(struct sljit_compiler *compiler, int op, int src, sljit_w srcw)
431 {
432 CHECK_ERROR();
433 check_sljit_emit_return(compiler, op, src, srcw);
434
435 if (op != SLJIT_MOV || !(src >= SLJIT_TEMPORARY_REG1 && src <= SLJIT_NO_REGISTERS)) {
436 FAIL_IF(emit_mov_before_return(compiler, op, src, srcw));
437 src = SLJIT_TEMPORARY_REG1;
438 }
439
440 FAIL_IF(push_inst(compiler, JMPL | D(0) | S1A(31) | IMM(8), UNMOVABLE_INS));
441 return push_inst(compiler, RESTORE | D(SLJIT_TEMPORARY_REG1) | S1(src) | S2(0), UNMOVABLE_INS);
442 }
443
444 /* --------------------------------------------------------------------- */
445 /* Operators */
446 /* --------------------------------------------------------------------- */
447
448 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32)
449 #define ARCH_32_64(a, b) a
450 #else
451 #define ARCH_32_64(a, b) b
452 #endif
453
454 static SLJIT_CONST sljit_ins data_transfer_insts[16 + 2] = {
455 /* u w s */ ARCH_32_64(OPC1(3) | OPC3(0x04) /* stw */, OPC1(3) | OPC3(0x0e) /* stx */),
456 /* u w l */ ARCH_32_64(OPC1(3) | OPC3(0x00) /* lduw */, OPC1(3) | OPC3(0x0b) /* ldx */),
457 /* u b s */ OPC1(3) | OPC3(0x05) /* stb */,
458 /* u b l */ OPC1(3) | OPC3(0x01) /* ldub */,
459 /* u h s */ OPC1(3) | OPC3(0x06) /* sth */,
460 /* u h l */ OPC1(3) | OPC3(0x02) /* lduh */,
461 /* u i s */ OPC1(3) | OPC3(0x04) /* stw */,
462 /* u i l */ OPC1(3) | OPC3(0x00) /* lduw */,
463
464 /* s w s */ ARCH_32_64(OPC1(3) | OPC3(0x04) /* stw */, OPC1(3) | OPC3(0x0e) /* stx */),
465 /* s w l */ ARCH_32_64(OPC1(3) | OPC3(0x00) /* lduw */, OPC1(3) | OPC3(0x0b) /* ldx */),
466 /* s b s */ OPC1(3) | OPC3(0x05) /* stb */,
467 /* s b l */ OPC1(3) | OPC3(0x09) /* ldsb */,
468 /* s h s */ OPC1(3) | OPC3(0x06) /* sth */,
469 /* s h l */ OPC1(3) | OPC3(0x0a) /* ldsh */,
470 /* s i s */ OPC1(3) | OPC3(0x04) /* stw */,
471 /* s i l */ ARCH_32_64(OPC1(3) | OPC3(0x00) /* lduw */, OPC1(3) | OPC3(0x08) /* ldsw */),
472
473 /* d s */ OPC1(3) | OPC3(0x27),
474 /* d l */ OPC1(3) | OPC3(0x23),
475 };
476
477 #undef ARCH_32_64
478
479 /* Can perform an operation using at most 1 instruction. */
480 static int getput_arg_fast(struct sljit_compiler *compiler, int flags, int reg, int arg, sljit_w argw)
481 {
482 SLJIT_ASSERT(arg & SLJIT_MEM);
483
484 if (!(flags & WRITE_BACK)) {
485 if ((!(arg & 0xf0) && argw <= SIMM_MAX && argw >= SIMM_MIN)
486 || ((arg & 0xf0) && (argw & 0x3) == 0)) {
487 /* Works for both absoulte and relative addresses (immediate case). */
488 if (SLJIT_UNLIKELY(flags & ARG_TEST))
489 return 1;
490 FAIL_IF(push_inst(compiler, data_transfer_insts[flags & MEM_MASK]
491 | ((flags & MEM_MASK) <= GPR_REG ? D(reg) : DA(reg))
492 | S1(arg & 0xf) | ((arg & 0xf0) ? S2((arg >> 4) & 0xf) : IMM(argw)),
493 ((flags & MEM_MASK) <= GPR_REG && (flags & LOAD_DATA)) ? DR(reg) : MOVABLE_INS));
494 return -1;
495 }
496 }
497 return 0;
498 }
499
500 /* See getput_arg below.
501 Note: can_cache is called only for binary operators. Those
502 operators always uses word arguments without write back. */
503 static int can_cache(int arg, sljit_w argw, int next_arg, sljit_w next_argw)
504 {
505 SLJIT_ASSERT((arg & SLJIT_MEM) && (next_arg & SLJIT_MEM));
506
507 /* Simple operation except for updates. */
508 if (arg & 0xf0) {
509 argw &= 0x3;
510 SLJIT_ASSERT(argw);
511 next_argw &= 0x3;
512 if ((arg & 0xf0) == (next_arg & 0xf0) && argw == next_argw)
513 return 1;
514 return 0;
515 }
516
517 if (((next_argw - argw) <= SIMM_MAX && (next_argw - argw) >= SIMM_MIN))
518 return 1;
519 return 0;
520 }
521
522 /* Emit the necessary instructions. See can_cache above. */
523 static int getput_arg(struct sljit_compiler *compiler, int flags, int reg, int arg, sljit_w argw, int next_arg, sljit_w next_argw)
524 {
525 int base, arg2, delay_slot;
526 sljit_ins dest;
527
528 SLJIT_ASSERT(arg & SLJIT_MEM);
529 if (!(next_arg & SLJIT_MEM)) {
530 next_arg = 0;
531 next_argw = 0;
532 }
533
534 base = arg & 0xf;
535 if (SLJIT_UNLIKELY(arg & 0xf0)) {
536 argw &= 0x3;
537 SLJIT_ASSERT(argw != 0);
538
539 /* Using the cache. */
540 if (((SLJIT_MEM | (arg & 0xf0)) == compiler->cache_arg) && (argw == compiler->cache_argw))
541 arg2 = TMP_REG3;
542 else {
543 if ((arg & 0xf0) == (next_arg & 0xf0) && argw == (next_argw & 0x3)) {
544 compiler->cache_arg = SLJIT_MEM | (arg & 0xf0);
545 compiler->cache_argw = argw;
546 arg2 = TMP_REG3;
547 }
548 else if ((flags & LOAD_DATA) && ((flags & MEM_MASK) <= GPR_REG) && reg != base && (reg << 4) != (arg & 0xf0))
549 arg2 = reg;
550 else /* It must be a mov operation, so tmp1 must be free to use. */
551 arg2 = TMP_REG1;
552 FAIL_IF(push_inst(compiler, SLL_W | D(arg2) | S1((arg >> 4) & 0xf) | IMM_ARG | argw, DR(arg2)));
553 }
554 }
555 else {
556 /* Using the cache. */
557 if ((compiler->cache_arg == SLJIT_MEM) && (argw - compiler->cache_argw) <= SIMM_MAX && (argw - compiler->cache_argw) >= SIMM_MIN) {
558 if (argw != compiler->cache_argw) {
559 FAIL_IF(push_inst(compiler, ADD | D(TMP_REG3) | S1(TMP_REG3) | IMM(argw - compiler->cache_argw), DR(TMP_REG3)));
560 compiler->cache_argw = argw;
561 }
562 arg2 = TMP_REG3;
563 } else {
564 if ((next_argw - argw) <= SIMM_MAX && (next_argw - argw) >= SIMM_MIN) {
565 compiler->cache_arg = SLJIT_MEM;
566 compiler->cache_argw = argw;
567 arg2 = TMP_REG3;
568 }
569 else if ((flags & LOAD_DATA) && ((flags & MEM_MASK) <= GPR_REG) && reg != base)
570 arg2 = reg;
571 else /* It must be a mov operation, so tmp1 must be free to use. */
572 arg2 = TMP_REG1;
573 FAIL_IF(load_immediate(compiler, arg2, argw));
574 }
575 }
576
577 dest = ((flags & MEM_MASK) <= GPR_REG ? D(reg) : DA(reg));
578 delay_slot = ((flags & MEM_MASK) <= GPR_REG && (flags & LOAD_DATA)) ? DR(reg) : MOVABLE_INS;
579 if (!base)
580 return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | dest | S1(arg2) | IMM(0), delay_slot);
581 if (!(flags & WRITE_BACK))
582 return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | dest | S1(base) | S2(arg2), delay_slot);
583 FAIL_IF(push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | dest | S1(base) | S2(arg2), delay_slot));
584 return push_inst(compiler, ADD | D(base) | S1(base) | S2(arg2), DR(base));
585 }
586
587 static SLJIT_INLINE int emit_op_mem(struct sljit_compiler *compiler, int flags, int reg, int arg, sljit_w argw)
588 {
589 if (getput_arg_fast(compiler, flags, reg, arg, argw))
590 return compiler->error;
591 compiler->cache_arg = 0;
592 compiler->cache_argw = 0;
593 return getput_arg(compiler, flags, reg, arg, argw, 0, 0);
594 }
595
596 static SLJIT_INLINE int emit_op_mem2(struct sljit_compiler *compiler, int flags, int reg, int arg1, sljit_w arg1w, int arg2, sljit_w arg2w)
597 {
598 if (getput_arg_fast(compiler, flags, reg, arg1, arg1w))
599 return compiler->error;
600 return getput_arg(compiler, flags, reg, arg1, arg1w, arg2, arg2w);
601 }
602
603 static int emit_op(struct sljit_compiler *compiler, int op, int flags,
604 int dst, sljit_w dstw,
605 int src1, sljit_w src1w,
606 int src2, sljit_w src2w)
607 {
608 /* arg1 goes to TMP_REG1 or src reg
609 arg2 goes to TMP_REG2, imm or src reg
610 TMP_REG3 can be used for caching
611 result goes to TMP_REG2, so put result can use TMP_REG1 and TMP_REG3. */
612 int dst_r = TMP_REG2;
613 int src1_r;
614 sljit_w src2_r = 0;
615 int sugg_src2_r = TMP_REG2;
616
617 compiler->cache_arg = 0;
618 compiler->cache_argw = 0;
619
620 if (dst >= SLJIT_TEMPORARY_REG1 && dst <= TMP_REG3) {
621 dst_r = dst;
622 flags |= REG_DEST;
623 if (GET_OPCODE(op) >= SLJIT_MOV && GET_OPCODE(op) <= SLJIT_MOVU_SI)
624 sugg_src2_r = dst_r;
625 }
626 else if (dst == SLJIT_UNUSED) {
627 if (op >= SLJIT_MOV && op <= SLJIT_MOVU_SI && !(src2 & SLJIT_MEM))
628 return SLJIT_SUCCESS;
629 }
630 else if ((dst & SLJIT_MEM) && !getput_arg_fast(compiler, flags | ARG_TEST, TMP_REG1, dst, dstw))
631 flags |= SLOW_DEST;
632
633 if (flags & IMM_OP) {
634 if ((src2 & SLJIT_IMM) && src2w) {
635 if (src2w <= SIMM_MAX && src2w >= SIMM_MIN) {
636 flags |= SRC2_IMM;
637 src2_r = src2w;
638 }
639 }
640 if (!(flags & SRC2_IMM) && (flags & CUMULATIVE_OP) && (src1 & SLJIT_IMM) && src1w) {
641 if (src1w <= SIMM_MAX && src1w >= SIMM_MIN) {
642 flags |= SRC2_IMM;
643 src2_r = src1w;
644
645 /* And swap arguments. */
646 src1 = src2;
647 src1w = src2w;
648 src2 = SLJIT_IMM;
649 /* src2w = src2_r unneeded. */
650 }
651 }
652 }
653
654 /* Source 1. */
655 if (src1 >= SLJIT_TEMPORARY_REG1 && src1 <= TMP_REG3)
656 src1_r = src1;
657 else if (src1 & SLJIT_IMM) {
658 if (src1w) {
659 FAIL_IF(load_immediate(compiler, TMP_REG1, src1w));
660 src1_r = TMP_REG1;
661 }
662 else
663 src1_r = 0;
664 }
665 else {
666 if (getput_arg_fast(compiler, flags | LOAD_DATA, TMP_REG1, src1, src1w))
667 FAIL_IF(compiler->error);
668 else
669 flags |= SLOW_SRC1;
670 src1_r = TMP_REG1;
671 }
672
673 /* Source 2. */
674 if (src2 >= SLJIT_TEMPORARY_REG1 && src2 <= TMP_REG3) {
675 src2_r = src2;
676 flags |= REG2_SOURCE;
677 if (!(flags & REG_DEST) && GET_OPCODE(op) >= SLJIT_MOV && GET_OPCODE(op) <= SLJIT_MOVU_SI)
678 dst_r = src2_r;
679 }
680 else if (src2 & SLJIT_IMM) {
681 if (!(flags & SRC2_IMM)) {
682 if (src2w || (GET_OPCODE(op) >= SLJIT_MOV && GET_OPCODE(op) <= SLJIT_MOVU_SI)) {
683 FAIL_IF(load_immediate(compiler, sugg_src2_r, src2w));
684 src2_r = sugg_src2_r;
685 }
686 else
687 src2_r = 0;
688 }
689 }
690 else {
691 if (getput_arg_fast(compiler, flags | LOAD_DATA, sugg_src2_r, src2, src2w))
692 FAIL_IF(compiler->error);
693 else
694 flags |= SLOW_SRC2;
695 src2_r = sugg_src2_r;
696 }
697
698 if ((flags & (SLOW_SRC1 | SLOW_SRC2)) == (SLOW_SRC1 | SLOW_SRC2)) {
699 SLJIT_ASSERT(src2_r == TMP_REG2);
700 if (!can_cache(src1, src1w, src2, src2w) && can_cache(src1, src1w, dst, dstw)) {
701 FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, TMP_REG2, src2, src2w, src1, src1w));
702 FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, TMP_REG1, src1, src1w, dst, dstw));
703 }
704 else {
705 FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, TMP_REG1, src1, src1w, src2, src2w));
706 FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, TMP_REG2, src2, src2w, dst, dstw));
707 }
708 }
709 else if (flags & SLOW_SRC1)
710 FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, TMP_REG1, src1, src1w, dst, dstw));
711 else if (flags & SLOW_SRC2)
712 FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, sugg_src2_r, src2, src2w, dst, dstw));
713
714 FAIL_IF(emit_single_op(compiler, op, flags, dst_r, src1_r, src2_r));
715
716 if (dst & SLJIT_MEM) {
717 if (!(flags & SLOW_DEST)) {
718 getput_arg_fast(compiler, flags, dst_r, dst, dstw);
719 return compiler->error;
720 }
721 return getput_arg(compiler, flags, dst_r, dst, dstw, 0, 0);
722 }
723
724 return SLJIT_SUCCESS;
725 }
726
727 SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_op0(struct sljit_compiler *compiler, int op)
728 {
729 CHECK_ERROR();
730 check_sljit_emit_op0(compiler, op);
731
732 op = GET_OPCODE(op);
733 switch (op) {
734 case SLJIT_BREAKPOINT:
735 return push_inst(compiler, TA, UNMOVABLE_INS);
736 case SLJIT_NOP:
737 return push_inst(compiler, NOP, UNMOVABLE_INS);
738 case SLJIT_UMUL:
739 case SLJIT_SMUL:
740 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32)
741 FAIL_IF(push_inst(compiler, (op == SLJIT_UMUL ? UMUL : SMUL) | D(SLJIT_TEMPORARY_REG1) | S1(SLJIT_TEMPORARY_REG1) | S2(SLJIT_TEMPORARY_REG2), DR(SLJIT_TEMPORARY_REG1)));
742 return push_inst(compiler, RDY | D(SLJIT_TEMPORARY_REG2), DR(SLJIT_TEMPORARY_REG2));
743 #else
744 #error "Implementation required"
745 #endif
746 case SLJIT_UDIV:
747 case SLJIT_SDIV:
748 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32)
749 if (op == SLJIT_UDIV)
750 FAIL_IF(push_inst(compiler, WRY | S1(0), MOVABLE_INS));
751 else {
752 FAIL_IF(push_inst(compiler, SRA | D(TMP_REG1) | S1(SLJIT_TEMPORARY_REG1) | IMM(31), DR(TMP_REG1)));
753 FAIL_IF(push_inst(compiler, WRY | S1(TMP_REG1), MOVABLE_INS));
754 }
755 FAIL_IF(push_inst(compiler, OR | D(TMP_REG2) | S1(0) | S2(SLJIT_TEMPORARY_REG1), DR(TMP_REG2)));
756 FAIL_IF(push_inst(compiler, (op == SLJIT_UDIV ? UDIV : SDIV) | D(SLJIT_TEMPORARY_REG1) | S1(SLJIT_TEMPORARY_REG1) | S2(SLJIT_TEMPORARY_REG2), DR(SLJIT_TEMPORARY_REG1)));
757 FAIL_IF(push_inst(compiler, SMUL | D(SLJIT_TEMPORARY_REG2) | S1(SLJIT_TEMPORARY_REG1) | S2(SLJIT_TEMPORARY_REG2), DR(SLJIT_TEMPORARY_REG2)));
758 FAIL_IF(push_inst(compiler, SUB | D(SLJIT_TEMPORARY_REG2) | S1(TMP_REG2) | S2(SLJIT_TEMPORARY_REG2), DR(SLJIT_TEMPORARY_REG2)));
759 return SLJIT_SUCCESS;
760 #else
761 #error "Implementation required"
762 #endif
763 }
764
765 return SLJIT_SUCCESS;
766 }
767
768 SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_op1(struct sljit_compiler *compiler, int op,
769 int dst, sljit_w dstw,
770 int src, sljit_w srcw)
771 {
772 int flags = GET_FLAGS(op) ? SET_FLAGS : 0;
773
774 CHECK_ERROR();
775 check_sljit_emit_op1(compiler, op, dst, dstw, src, srcw);
776 ADJUST_LOCAL_OFFSET(dst, dstw);
777 ADJUST_LOCAL_OFFSET(src, srcw);
778
779 op = GET_OPCODE(op);
780 switch (op) {
781 case SLJIT_MOV:
782 case SLJIT_MOV_P:
783 return emit_op(compiler, SLJIT_MOV, flags | WORD_DATA, dst, dstw, TMP_REG1, 0, src, srcw);
784
785 case SLJIT_MOV_UI:
786 return emit_op(compiler, SLJIT_MOV_UI, flags | INT_DATA, dst, dstw, TMP_REG1, 0, src, srcw);
787
788 case SLJIT_MOV_SI:
789 return emit_op(compiler, SLJIT_MOV_SI, flags | INT_DATA | SIGNED_DATA, dst, dstw, TMP_REG1, 0, src, srcw);
790
791 case SLJIT_MOV_UB:
792 return emit_op(compiler, SLJIT_MOV_UB, flags | BYTE_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_ub)srcw : srcw);
793
794 case SLJIT_MOV_SB:
795 return emit_op(compiler, SLJIT_MOV_SB, flags | BYTE_DATA | SIGNED_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_b)srcw : srcw);
796
797 case SLJIT_MOV_UH:
798 return emit_op(compiler, SLJIT_MOV_UH, flags | HALF_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_uh)srcw : srcw);
799
800 case SLJIT_MOV_SH:
801 return emit_op(compiler, SLJIT_MOV_SH, flags | HALF_DATA | SIGNED_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_h)srcw : srcw);
802
803 case SLJIT_MOVU:
804 case SLJIT_MOVU_P:
805 return emit_op(compiler, SLJIT_MOV, flags | WORD_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, srcw);
806
807 case SLJIT_MOVU_UI:
808 return emit_op(compiler, SLJIT_MOV_UI, flags | INT_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, srcw);
809
810 case SLJIT_MOVU_SI:
811 return emit_op(compiler, SLJIT_MOV_SI, flags | INT_DATA | SIGNED_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, srcw);
812
813 case SLJIT_MOVU_UB:
814 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);
815
816 case SLJIT_MOVU_SB:
817 return emit_op(compiler, SLJIT_MOV_SB, flags | BYTE_DATA | SIGNED_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_b)srcw : srcw);
818
819 case SLJIT_MOVU_UH:
820 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);
821
822 case SLJIT_MOVU_SH:
823 return emit_op(compiler, SLJIT_MOV_SH, flags | HALF_DATA | SIGNED_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_h)srcw : srcw);
824
825 case SLJIT_NOT:
826 case SLJIT_CLZ:
827 return emit_op(compiler, op, flags, dst, dstw, TMP_REG1, 0, src, srcw);
828
829 case SLJIT_NEG:
830 return emit_op(compiler, SLJIT_SUB, flags | IMM_OP, dst, dstw, SLJIT_IMM, 0, src, srcw);
831 }
832
833 return SLJIT_SUCCESS;
834 }
835
836 SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_op2(struct sljit_compiler *compiler, int op,
837 int dst, sljit_w dstw,
838 int src1, sljit_w src1w,
839 int src2, sljit_w src2w)
840 {
841 int flags = GET_FLAGS(op) ? SET_FLAGS : 0;
842
843 CHECK_ERROR();
844 check_sljit_emit_op2(compiler, op, dst, dstw, src1, src1w, src2, src2w);
845 ADJUST_LOCAL_OFFSET(dst, dstw);
846 ADJUST_LOCAL_OFFSET(src1, src1w);
847 ADJUST_LOCAL_OFFSET(src2, src2w);
848
849 op = GET_OPCODE(op);
850 switch (op) {
851 case SLJIT_ADD:
852 case SLJIT_ADDC:
853 case SLJIT_MUL:
854 case SLJIT_AND:
855 case SLJIT_OR:
856 case SLJIT_XOR:
857 return emit_op(compiler, op, flags | CUMULATIVE_OP | IMM_OP, dst, dstw, src1, src1w, src2, src2w);
858
859 case SLJIT_SUB:
860 case SLJIT_SUBC:
861 return emit_op(compiler, op, flags | IMM_OP, dst, dstw, src1, src1w, src2, src2w);
862
863 case SLJIT_SHL:
864 case SLJIT_LSHR:
865 case SLJIT_ASHR:
866 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32)
867 if (src2 & SLJIT_IMM)
868 src2w &= 0x1f;
869 #else
870 SLJIT_ASSERT_STOP();
871 #endif
872 return emit_op(compiler, op, flags | IMM_OP, dst, dstw, src1, src1w, src2, src2w);
873 }
874
875 return SLJIT_SUCCESS;
876 }
877
878 SLJIT_API_FUNC_ATTRIBUTE int sljit_get_register_index(int reg)
879 {
880 check_sljit_get_register_index(reg);
881 return reg_map[reg];
882 }
883
884 SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_op_custom(struct sljit_compiler *compiler,
885 void *instruction, int size)
886 {
887 CHECK_ERROR();
888 check_sljit_emit_op_custom(compiler, instruction, size);
889 SLJIT_ASSERT(size == 4);
890
891 return push_inst(compiler, *(sljit_ins*)instruction, UNMOVABLE_INS);
892 }
893
894 /* --------------------------------------------------------------------- */
895 /* Floating point operators */
896 /* --------------------------------------------------------------------- */
897
898 SLJIT_API_FUNC_ATTRIBUTE int sljit_is_fpu_available(void)
899 {
900 return 1;
901 }
902
903 SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_fop1(struct sljit_compiler *compiler, int op,
904 int dst, sljit_w dstw,
905 int src, sljit_w srcw)
906 {
907 int dst_fr;
908
909 CHECK_ERROR();
910 check_sljit_emit_fop1(compiler, op, dst, dstw, src, srcw);
911
912 compiler->cache_arg = 0;
913 compiler->cache_argw = 0;
914
915 if (GET_OPCODE(op) == SLJIT_FCMP) {
916 if (dst > SLJIT_FLOAT_REG4) {
917 FAIL_IF(emit_op_mem2(compiler, DOUBLE_DATA | LOAD_DATA, TMP_FREG1, dst, dstw, src, srcw));
918 dst = TMP_FREG1;
919 }
920 else
921 dst <<= 1;
922
923 if (src > SLJIT_FLOAT_REG4) {
924 FAIL_IF(emit_op_mem2(compiler, DOUBLE_DATA | LOAD_DATA, TMP_FREG2, src, srcw, 0, 0));
925 src = TMP_FREG2;
926 }
927 else
928 src <<= 1;
929
930 return push_inst(compiler, FCMPD | S1A(dst) | S2A(src), FCC_IS_SET | MOVABLE_INS);
931 }
932
933 dst_fr = (dst > SLJIT_FLOAT_REG4) ? TMP_FREG1 : (dst << 1);
934
935 if (src > SLJIT_FLOAT_REG4) {
936 FAIL_IF(emit_op_mem2(compiler, DOUBLE_DATA | LOAD_DATA, dst_fr, src, srcw, dst, dstw));
937 src = dst_fr;
938 }
939 else
940 src <<= 1;
941
942 switch (op) {
943 case SLJIT_FMOV:
944 if (src != dst_fr && dst_fr != TMP_FREG1) {
945 FAIL_IF(push_inst(compiler, FMOVS | DA(dst_fr) | S2A(src), MOVABLE_INS));
946 FAIL_IF(push_inst(compiler, FMOVS | DA(dst_fr | 1) | S2A(src | 1), MOVABLE_INS));
947 }
948 break;
949 case SLJIT_FNEG:
950 FAIL_IF(push_inst(compiler, FNEGS | DA(dst_fr) | S2A(src), MOVABLE_INS));
951 if (dst_fr != src)
952 FAIL_IF(push_inst(compiler, FMOVS | DA(dst_fr | 1) | S2A(src | 1), MOVABLE_INS));
953 break;
954 case SLJIT_FABS:
955 FAIL_IF(push_inst(compiler, FABSS | DA(dst_fr) | S2A(src), MOVABLE_INS));
956 if (dst_fr != src)
957 FAIL_IF(push_inst(compiler, FMOVS | DA(dst_fr | 1) | S2A(src | 1), MOVABLE_INS));
958 break;
959 }
960
961 if (dst_fr == TMP_FREG1) {
962 if (op == SLJIT_FMOV)
963 dst_fr = src;
964 FAIL_IF(emit_op_mem2(compiler, DOUBLE_DATA, dst_fr, dst, dstw, 0, 0));
965 }
966
967 return SLJIT_SUCCESS;
968 }
969
970 SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_fop2(struct sljit_compiler *compiler, int op,
971 int dst, sljit_w dstw,
972 int src1, sljit_w src1w,
973 int src2, sljit_w src2w)
974 {
975 int dst_fr, flags = 0;
976
977 CHECK_ERROR();
978 check_sljit_emit_fop2(compiler, op, dst, dstw, src1, src1w, src2, src2w);
979
980 compiler->cache_arg = 0;
981 compiler->cache_argw = 0;
982
983 dst_fr = (dst > SLJIT_FLOAT_REG4) ? TMP_FREG2 : (dst << 1);
984
985 if (src1 > SLJIT_FLOAT_REG4) {
986 if (getput_arg_fast(compiler, DOUBLE_DATA | LOAD_DATA, TMP_FREG1, src1, src1w)) {
987 FAIL_IF(compiler->error);
988 src1 = TMP_FREG1;
989 } else
990 flags |= SLOW_SRC1;
991 }
992 else
993 src1 <<= 1;
994
995 if (src2 > SLJIT_FLOAT_REG4) {
996 if (getput_arg_fast(compiler, DOUBLE_DATA | LOAD_DATA, TMP_FREG2, src2, src2w)) {
997 FAIL_IF(compiler->error);
998 src2 = TMP_FREG2;
999 } else
1000 flags |= SLOW_SRC2;
1001 }
1002 else
1003 src2 <<= 1;
1004
1005 if ((flags & (SLOW_SRC1 | SLOW_SRC2)) == (SLOW_SRC1 | SLOW_SRC2)) {
1006 if (!can_cache(src1, src1w, src2, src2w) && can_cache(src1, src1w, dst, dstw)) {
1007 FAIL_IF(getput_arg(compiler, DOUBLE_DATA | LOAD_DATA, TMP_FREG2, src2, src2w, src1, src1w));
1008 FAIL_IF(getput_arg(compiler, DOUBLE_DATA | LOAD_DATA, TMP_FREG1, src1, src1w, dst, dstw));
1009 }
1010 else {
1011 FAIL_IF(getput_arg(compiler, DOUBLE_DATA | LOAD_DATA, TMP_FREG1, src1, src1w, src2, src2w));
1012 FAIL_IF(getput_arg(compiler, DOUBLE_DATA | LOAD_DATA, TMP_FREG2, src2, src2w, dst, dstw));
1013 }
1014 }
1015 else if (flags & SLOW_SRC1)
1016 FAIL_IF(getput_arg(compiler, DOUBLE_DATA | LOAD_DATA, TMP_FREG1, src1, src1w, dst, dstw));
1017 else if (flags & SLOW_SRC2)
1018 FAIL_IF(getput_arg(compiler, DOUBLE_DATA | LOAD_DATA, TMP_FREG2, src2, src2w, dst, dstw));
1019
1020 if (flags & SLOW_SRC1)
1021 src1 = TMP_FREG1;
1022 if (flags & SLOW_SRC2)
1023 src2 = TMP_FREG2;
1024
1025 switch (op) {
1026 case SLJIT_FADD:
1027 FAIL_IF(push_inst(compiler, FADDD | DA(dst_fr) | S1A(src1) | S2A(src2), MOVABLE_INS));
1028 break;
1029
1030 case SLJIT_FSUB:
1031 FAIL_IF(push_inst(compiler, FSUBD | DA(dst_fr) | S1A(src1) | S2A(src2), MOVABLE_INS));
1032 break;
1033
1034 case SLJIT_FMUL:
1035 FAIL_IF(push_inst(compiler, FMULD | DA(dst_fr) | S1A(src1) | S2A(src2), MOVABLE_INS));
1036 break;
1037
1038 case SLJIT_FDIV:
1039 FAIL_IF(push_inst(compiler, FDIVD | DA(dst_fr) | S1A(src1) | S2A(src2), MOVABLE_INS));
1040 break;
1041 }
1042
1043 if (dst_fr == TMP_FREG2)
1044 FAIL_IF(emit_op_mem2(compiler, DOUBLE_DATA, TMP_FREG2, dst, dstw, 0, 0));
1045
1046 return SLJIT_SUCCESS;
1047 }
1048
1049 /* --------------------------------------------------------------------- */
1050 /* Other instructions */
1051 /* --------------------------------------------------------------------- */
1052
1053 SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_fast_enter(struct sljit_compiler *compiler, int dst, sljit_w dstw)
1054 {
1055 CHECK_ERROR();
1056 check_sljit_emit_fast_enter(compiler, dst, dstw);
1057 ADJUST_LOCAL_OFFSET(dst, dstw);
1058
1059 if (dst >= SLJIT_TEMPORARY_REG1 && dst <= SLJIT_NO_REGISTERS)
1060 return push_inst(compiler, OR | D(dst) | S1(0) | S2(LINK_REG), DR(dst));
1061 else if (dst & SLJIT_MEM)
1062 return emit_op_mem(compiler, WORD_DATA, LINK_REG, dst, dstw);
1063
1064 /* SLJIT_UNUSED is also possible, although highly unlikely. */
1065 return SLJIT_SUCCESS;
1066 }
1067
1068 SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_fast_return(struct sljit_compiler *compiler, int src, sljit_w srcw)
1069 {
1070 CHECK_ERROR();
1071 check_sljit_emit_fast_return(compiler, src, srcw);
1072 ADJUST_LOCAL_OFFSET(src, srcw);
1073
1074 if (src >= SLJIT_TEMPORARY_REG1 && src <= SLJIT_NO_REGISTERS)
1075 FAIL_IF(push_inst(compiler, OR | D(LINK_REG) | S1(0) | S2(src), DR(LINK_REG)));
1076 else if (src & SLJIT_MEM)
1077 FAIL_IF(emit_op_mem(compiler, WORD_DATA | LOAD_DATA, LINK_REG, src, srcw));
1078 else if (src & SLJIT_IMM)
1079 FAIL_IF(load_immediate(compiler, LINK_REG, srcw));
1080
1081 FAIL_IF(push_inst(compiler, JMPL | D(0) | S1(LINK_REG) | IMM(8), UNMOVABLE_INS));
1082 return push_inst(compiler, NOP, UNMOVABLE_INS);
1083 }
1084
1085 /* --------------------------------------------------------------------- */
1086 /* Conditional instructions */
1087 /* --------------------------------------------------------------------- */
1088
1089 SLJIT_API_FUNC_ATTRIBUTE struct sljit_label* sljit_emit_label(struct sljit_compiler *compiler)
1090 {
1091 struct sljit_label *label;
1092
1093 CHECK_ERROR_PTR();
1094 check_sljit_emit_label(compiler);
1095
1096 if (compiler->last_label && compiler->last_label->size == compiler->size)
1097 return compiler->last_label;
1098
1099 label = (struct sljit_label*)ensure_abuf(compiler, sizeof(struct sljit_label));
1100 PTR_FAIL_IF(!label);
1101 set_label(label, compiler);
1102 compiler->delay_slot = UNMOVABLE_INS;
1103 return label;
1104 }
1105
1106 static sljit_ins get_cc(int type)
1107 {
1108 switch (type) {
1109 case SLJIT_C_EQUAL:
1110 case SLJIT_C_MUL_NOT_OVERFLOW:
1111 return DA(0x1);
1112
1113 case SLJIT_C_NOT_EQUAL:
1114 case SLJIT_C_MUL_OVERFLOW:
1115 return DA(0x9);
1116
1117 case SLJIT_C_LESS:
1118 return DA(0x5);
1119
1120 case SLJIT_C_GREATER_EQUAL:
1121 return DA(0xd);
1122
1123 case SLJIT_C_GREATER:
1124 return DA(0xc);
1125
1126 case SLJIT_C_LESS_EQUAL:
1127 return DA(0x4);
1128
1129 case SLJIT_C_SIG_LESS:
1130 return DA(0x3);
1131
1132 case SLJIT_C_SIG_GREATER_EQUAL:
1133 return DA(0xb);
1134
1135 case SLJIT_C_SIG_GREATER:
1136 return DA(0xa);
1137
1138 case SLJIT_C_SIG_LESS_EQUAL:
1139 return DA(0x2);
1140
1141 case SLJIT_C_OVERFLOW:
1142 return DA(0x7);
1143
1144 case SLJIT_C_NOT_OVERFLOW:
1145 return DA(0xf);
1146
1147 case SLJIT_C_FLOAT_EQUAL:
1148 return DA(0x9);
1149
1150 case SLJIT_C_FLOAT_NOT_EQUAL: /* Unordered. */
1151 return DA(0x1);
1152
1153 case SLJIT_C_FLOAT_LESS:
1154 return DA(0x4);
1155
1156 case SLJIT_C_FLOAT_GREATER_EQUAL: /* Unordered. */
1157 return DA(0xc);
1158
1159 case SLJIT_C_FLOAT_LESS_EQUAL:
1160 return DA(0xd);
1161
1162 case SLJIT_C_FLOAT_GREATER: /* Unordered. */
1163 return DA(0x5);
1164
1165 case SLJIT_C_FLOAT_UNORDERED:
1166 return DA(0x7);
1167
1168 case SLJIT_C_FLOAT_ORDERED:
1169 return DA(0xf);
1170
1171 default:
1172 SLJIT_ASSERT_STOP();
1173 return DA(0x8);
1174 }
1175 }
1176
1177 SLJIT_API_FUNC_ATTRIBUTE struct sljit_jump* sljit_emit_jump(struct sljit_compiler *compiler, int type)
1178 {
1179 struct sljit_jump *jump;
1180
1181 CHECK_ERROR_PTR();
1182 check_sljit_emit_jump(compiler, type);
1183
1184 jump = (struct sljit_jump*)ensure_abuf(compiler, sizeof(struct sljit_jump));
1185 PTR_FAIL_IF(!jump);
1186 set_jump(jump, compiler, type & SLJIT_REWRITABLE_JUMP);
1187 type &= 0xff;
1188
1189 if (type < SLJIT_C_FLOAT_EQUAL) {
1190 jump->flags |= IS_COND;
1191 if (((compiler->delay_slot & DST_INS_MASK) != UNMOVABLE_INS) && !(compiler->delay_slot & ICC_IS_SET))
1192 jump->flags |= IS_MOVABLE;
1193 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32)
1194 PTR_FAIL_IF(push_inst(compiler, BICC | get_cc(type ^ 1) | 5, UNMOVABLE_INS));
1195 #else
1196 #error "Implementation required"
1197 #endif
1198 }
1199 else if (type < SLJIT_JUMP) {
1200 jump->flags |= IS_COND;
1201 if (((compiler->delay_slot & DST_INS_MASK) != UNMOVABLE_INS) && !(compiler->delay_slot & FCC_IS_SET))
1202 jump->flags |= IS_MOVABLE;
1203 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32)
1204 PTR_FAIL_IF(push_inst(compiler, FBFCC | get_cc(type ^ 1) | 5, UNMOVABLE_INS));
1205 #else
1206 #error "Implementation required"
1207 #endif
1208 } else {
1209 if ((compiler->delay_slot & DST_INS_MASK) != UNMOVABLE_INS)
1210 jump->flags |= IS_MOVABLE;
1211 if (type >= SLJIT_FAST_CALL)
1212 jump->flags |= IS_CALL;
1213 }
1214
1215 PTR_FAIL_IF(emit_const(compiler, TMP_REG2, 0));
1216 PTR_FAIL_IF(push_inst(compiler, JMPL | D(type >= SLJIT_FAST_CALL ? LINK_REG : 0) | S1(TMP_REG2) | IMM(0), UNMOVABLE_INS));
1217 jump->addr = compiler->size;
1218 PTR_FAIL_IF(push_inst(compiler, NOP, UNMOVABLE_INS));
1219
1220 return jump;
1221 }
1222
1223 SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_ijump(struct sljit_compiler *compiler, int type, int src, sljit_w srcw)
1224 {
1225 struct sljit_jump *jump = NULL;
1226 int src_r;
1227
1228 CHECK_ERROR();
1229 check_sljit_emit_ijump(compiler, type, src, srcw);
1230 ADJUST_LOCAL_OFFSET(src, srcw);
1231
1232 if (src >= SLJIT_TEMPORARY_REG1 && src <= SLJIT_NO_REGISTERS)
1233 src_r = src;
1234 else if (src & SLJIT_IMM) {
1235 jump = (struct sljit_jump*)ensure_abuf(compiler, sizeof(struct sljit_jump));
1236 FAIL_IF(!jump);
1237 set_jump(jump, compiler, JUMP_ADDR);
1238 jump->u.target = srcw;
1239 if ((compiler->delay_slot & DST_INS_MASK) != UNMOVABLE_INS)
1240 jump->flags |= IS_MOVABLE;
1241 if (type >= SLJIT_FAST_CALL)
1242 jump->flags |= IS_CALL;
1243
1244 FAIL_IF(emit_const(compiler, TMP_REG2, 0));
1245 src_r = TMP_REG2;
1246 }
1247 else {
1248 FAIL_IF(emit_op_mem(compiler, WORD_DATA | LOAD_DATA, TMP_REG2, src, srcw));
1249 src_r = TMP_REG2;
1250 }
1251
1252 FAIL_IF(push_inst(compiler, JMPL | D(type >= SLJIT_FAST_CALL ? LINK_REG : 0) | S1(src_r) | IMM(0), UNMOVABLE_INS));
1253 if (jump)
1254 jump->addr = compiler->size;
1255 return push_inst(compiler, NOP, UNMOVABLE_INS);
1256 }
1257
1258 SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_cond_value(struct sljit_compiler *compiler, int op, int dst, sljit_w dstw, int type)
1259 {
1260 int reg;
1261
1262 CHECK_ERROR();
1263 check_sljit_emit_cond_value(compiler, op, dst, dstw, type);
1264 ADJUST_LOCAL_OFFSET(dst, dstw);
1265
1266 if (dst == SLJIT_UNUSED)
1267 return SLJIT_SUCCESS;
1268
1269 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32)
1270 reg = (op == SLJIT_MOV && dst >= SLJIT_TEMPORARY_REG1 && dst <= SLJIT_NO_REGISTERS) ? dst : TMP_REG2;
1271
1272 if (type < SLJIT_C_FLOAT_EQUAL)
1273 FAIL_IF(push_inst(compiler, BICC | get_cc(type) | 3, UNMOVABLE_INS));
1274 else
1275 FAIL_IF(push_inst(compiler, FBFCC | get_cc(type) | 3, UNMOVABLE_INS));
1276
1277 FAIL_IF(push_inst(compiler, OR | D(reg) | S1(0) | IMM(1), UNMOVABLE_INS));
1278 FAIL_IF(push_inst(compiler, OR | D(reg) | S1(0) | IMM(0), UNMOVABLE_INS));
1279
1280 if (GET_OPCODE(op) == SLJIT_OR)
1281 return emit_op(compiler, SLJIT_OR, (GET_FLAGS(op) ? SET_FLAGS : 0) | CUMULATIVE_OP | IMM_OP, dst, dstw, dst, dstw, TMP_REG2, 0);
1282
1283 return (reg == TMP_REG2) ? emit_op_mem(compiler, WORD_DATA, TMP_REG2, dst, dstw) : SLJIT_SUCCESS;
1284 #else
1285 #error "Implementation required"
1286 #endif
1287 }
1288
1289 SLJIT_API_FUNC_ATTRIBUTE struct sljit_const* sljit_emit_const(struct sljit_compiler *compiler, int dst, sljit_w dstw, sljit_w init_value)
1290 {
1291 int reg;
1292 struct sljit_const *const_;
1293
1294 CHECK_ERROR_PTR();
1295 check_sljit_emit_const(compiler, dst, dstw, init_value);
1296 ADJUST_LOCAL_OFFSET(dst, dstw);
1297
1298 const_ = (struct sljit_const*)ensure_abuf(compiler, sizeof(struct sljit_const));
1299 PTR_FAIL_IF(!const_);
1300 set_const(const_, compiler);
1301
1302 reg = (dst >= SLJIT_TEMPORARY_REG1 && dst <= SLJIT_NO_REGISTERS) ? dst : TMP_REG2;
1303
1304 PTR_FAIL_IF(emit_const(compiler, reg, init_value));
1305
1306 if (dst & SLJIT_MEM)
1307 PTR_FAIL_IF(emit_op_mem(compiler, WORD_DATA, TMP_REG2, dst, dstw));
1308
1309 return const_;
1310 }

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