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_UDIVMOD:
781 case SLJIT_SDIVMOD:
782 case SLJIT_UDIVI:
783 case SLJIT_SDIVI:
784 SLJIT_COMPILE_ASSERT((SLJIT_UDIVMOD & 0x2) == 0 && SLJIT_UDIVI - 0x2 == SLJIT_UDIVMOD, bad_div_opcode_assignments);
785 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32)
786 if ((op | 0x2) == SLJIT_UDIVI)
787 FAIL_IF(push_inst(compiler, WRY | S1(0), MOVABLE_INS));
788 else {
789 FAIL_IF(push_inst(compiler, SRA | D(TMP_REG1) | S1(SLJIT_R0) | IMM(31), DR(TMP_REG1)));
790 FAIL_IF(push_inst(compiler, WRY | S1(TMP_REG1), MOVABLE_INS));
791 }
792 if (op <= SLJIT_SDIVMOD)
793 FAIL_IF(push_inst(compiler, OR | D(TMP_REG2) | S1(0) | S2(SLJIT_R0), DR(TMP_REG2)));
794 FAIL_IF(push_inst(compiler, ((op | 0x2) == SLJIT_UDIVI ? UDIV : SDIV) | D(SLJIT_R0) | S1(SLJIT_R0) | S2(SLJIT_R1), DR(SLJIT_R0)));
795 if (op >= SLJIT_UDIVI)
796 return SLJIT_SUCCESS;
797 FAIL_IF(push_inst(compiler, SMUL | D(SLJIT_R1) | S1(SLJIT_R0) | S2(SLJIT_R1), DR(SLJIT_R1)));
798 return push_inst(compiler, SUB | D(SLJIT_R1) | S1(TMP_REG2) | S2(SLJIT_R1), DR(SLJIT_R1));
799 #else
800 #error "Implementation required"
801 #endif
802 }
803
804 return SLJIT_SUCCESS;
805 }
806
sljit_emit_op1(struct sljit_compiler * compiler,sljit_si op,sljit_si dst,sljit_sw dstw,sljit_si src,sljit_sw srcw)807 SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_op1(struct sljit_compiler *compiler, sljit_si op,
808 sljit_si dst, sljit_sw dstw,
809 sljit_si src, sljit_sw srcw)
810 {
811 sljit_si flags = GET_FLAGS(op) ? SET_FLAGS : 0;
812
813 CHECK_ERROR();
814 CHECK(check_sljit_emit_op1(compiler, op, dst, dstw, src, srcw));
815 ADJUST_LOCAL_OFFSET(dst, dstw);
816 ADJUST_LOCAL_OFFSET(src, srcw);
817
818 op = GET_OPCODE(op);
819 switch (op) {
820 case SLJIT_MOV:
821 case SLJIT_MOV_P:
822 return emit_op(compiler, SLJIT_MOV, flags | WORD_DATA, dst, dstw, TMP_REG1, 0, src, srcw);
823
824 case SLJIT_MOV_UI:
825 return emit_op(compiler, SLJIT_MOV_UI, flags | INT_DATA, dst, dstw, TMP_REG1, 0, src, srcw);
826
827 case SLJIT_MOV_SI:
828 return emit_op(compiler, SLJIT_MOV_SI, flags | INT_DATA | SIGNED_DATA, dst, dstw, TMP_REG1, 0, src, srcw);
829
830 case SLJIT_MOV_UB:
831 return emit_op(compiler, SLJIT_MOV_UB, flags | BYTE_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_ub)srcw : srcw);
832
833 case SLJIT_MOV_SB:
834 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);
835
836 case SLJIT_MOV_UH:
837 return emit_op(compiler, SLJIT_MOV_UH, flags | HALF_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_uh)srcw : srcw);
838
839 case SLJIT_MOV_SH:
840 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);
841
842 case SLJIT_MOVU:
843 case SLJIT_MOVU_P:
844 return emit_op(compiler, SLJIT_MOV, flags | WORD_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, srcw);
845
846 case SLJIT_MOVU_UI:
847 return emit_op(compiler, SLJIT_MOV_UI, flags | INT_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, srcw);
848
849 case SLJIT_MOVU_SI:
850 return emit_op(compiler, SLJIT_MOV_SI, flags | INT_DATA | SIGNED_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, srcw);
851
852 case SLJIT_MOVU_UB:
853 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);
854
855 case SLJIT_MOVU_SB:
856 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);
857
858 case SLJIT_MOVU_UH:
859 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);
860
861 case SLJIT_MOVU_SH:
862 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);
863
864 case SLJIT_NOT:
865 case SLJIT_CLZ:
866 return emit_op(compiler, op, flags, dst, dstw, TMP_REG1, 0, src, srcw);
867
868 case SLJIT_NEG:
869 return emit_op(compiler, SLJIT_SUB, flags | IMM_OP, dst, dstw, SLJIT_IMM, 0, src, srcw);
870 }
871
872 return SLJIT_SUCCESS;
873 }
874
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)875 SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_op2(struct sljit_compiler *compiler, sljit_si op,
876 sljit_si dst, sljit_sw dstw,
877 sljit_si src1, sljit_sw src1w,
878 sljit_si src2, sljit_sw src2w)
879 {
880 sljit_si flags = GET_FLAGS(op) ? SET_FLAGS : 0;
881
882 CHECK_ERROR();
883 CHECK(check_sljit_emit_op2(compiler, op, dst, dstw, src1, src1w, src2, src2w));
884 ADJUST_LOCAL_OFFSET(dst, dstw);
885 ADJUST_LOCAL_OFFSET(src1, src1w);
886 ADJUST_LOCAL_OFFSET(src2, src2w);
887
888 op = GET_OPCODE(op);
889 switch (op) {
890 case SLJIT_ADD:
891 case SLJIT_ADDC:
892 case SLJIT_MUL:
893 case SLJIT_AND:
894 case SLJIT_OR:
895 case SLJIT_XOR:
896 return emit_op(compiler, op, flags | CUMULATIVE_OP | IMM_OP, dst, dstw, src1, src1w, src2, src2w);
897
898 case SLJIT_SUB:
899 case SLJIT_SUBC:
900 return emit_op(compiler, op, flags | IMM_OP, dst, dstw, src1, src1w, src2, src2w);
901
902 case SLJIT_SHL:
903 case SLJIT_LSHR:
904 case SLJIT_ASHR:
905 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32)
906 if (src2 & SLJIT_IMM)
907 src2w &= 0x1f;
908 #else
909 SLJIT_ASSERT_STOP();
910 #endif
911 return emit_op(compiler, op, flags | IMM_OP, dst, dstw, src1, src1w, src2, src2w);
912 }
913
914 return SLJIT_SUCCESS;
915 }
916
sljit_get_register_index(sljit_si reg)917 SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_get_register_index(sljit_si reg)
918 {
919 CHECK_REG_INDEX(check_sljit_get_register_index(reg));
920 return reg_map[reg];
921 }
922
sljit_get_float_register_index(sljit_si reg)923 SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_get_float_register_index(sljit_si reg)
924 {
925 CHECK_REG_INDEX(check_sljit_get_float_register_index(reg));
926 return reg << 1;
927 }
928
sljit_emit_op_custom(struct sljit_compiler * compiler,void * instruction,sljit_si size)929 SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_op_custom(struct sljit_compiler *compiler,
930 void *instruction, sljit_si size)
931 {
932 CHECK_ERROR();
933 CHECK(check_sljit_emit_op_custom(compiler, instruction, size));
934
935 return push_inst(compiler, *(sljit_ins*)instruction, UNMOVABLE_INS);
936 }
937
938 /* --------------------------------------------------------------------- */
939 /* Floating point operators */
940 /* --------------------------------------------------------------------- */
941
sljit_is_fpu_available(void)942 SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_is_fpu_available(void)
943 {
944 #ifdef SLJIT_IS_FPU_AVAILABLE
945 return SLJIT_IS_FPU_AVAILABLE;
946 #else
947 /* Available by default. */
948 return 1;
949 #endif
950 }
951
952 #define FLOAT_DATA(op) (DOUBLE_DATA | ((op & SLJIT_SINGLE_OP) >> 7))
953 #define SELECT_FOP(op, single, double) ((op & SLJIT_SINGLE_OP) ? single : double)
954 #define FLOAT_TMP_MEM_OFFSET (22 * sizeof(sljit_sw))
955
sljit_emit_fop1_convw_fromd(struct sljit_compiler * compiler,sljit_si op,sljit_si dst,sljit_sw dstw,sljit_si src,sljit_sw srcw)956 static SLJIT_INLINE sljit_si sljit_emit_fop1_convw_fromd(struct sljit_compiler *compiler, sljit_si op,
957 sljit_si dst, sljit_sw dstw,
958 sljit_si src, sljit_sw srcw)
959 {
960 if (src & SLJIT_MEM) {
961 FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG1, src, srcw, dst, dstw));
962 src = TMP_FREG1;
963 }
964 else
965 src <<= 1;
966
967 FAIL_IF(push_inst(compiler, SELECT_FOP(op, FSTOI, FDTOI) | DA(TMP_FREG1) | S2A(src), MOVABLE_INS));
968
969 if (dst == SLJIT_UNUSED)
970 return SLJIT_SUCCESS;
971
972 if (FAST_IS_REG(dst)) {
973 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));
974 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);
975 }
976
977 /* Store the integer value from a VFP register. */
978 return emit_op_mem2(compiler, SINGLE_DATA, TMP_FREG1, dst, dstw, 0, 0);
979 }
980
sljit_emit_fop1_convd_fromw(struct sljit_compiler * compiler,sljit_si op,sljit_si dst,sljit_sw dstw,sljit_si src,sljit_sw srcw)981 static SLJIT_INLINE sljit_si sljit_emit_fop1_convd_fromw(struct sljit_compiler *compiler, sljit_si op,
982 sljit_si dst, sljit_sw dstw,
983 sljit_si src, sljit_sw srcw)
984 {
985 sljit_si dst_r = FAST_IS_REG(dst) ? (dst << 1) : TMP_FREG1;
986
987 if (src & SLJIT_IMM) {
988 #if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64)
989 if (GET_OPCODE(op) == SLJIT_CONVD_FROMI)
990 srcw = (sljit_si)srcw;
991 #endif
992 FAIL_IF(load_immediate(compiler, TMP_REG1, srcw));
993 src = TMP_REG1;
994 srcw = 0;
995 }
996
997 if (FAST_IS_REG(src)) {
998 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));
999 src = SLJIT_MEM1(SLJIT_SP);
1000 srcw = FLOAT_TMP_MEM_OFFSET;
1001 }
1002
1003 FAIL_IF(emit_op_mem2(compiler, SINGLE_DATA | LOAD_DATA, TMP_FREG1, src, srcw, dst, dstw));
1004 FAIL_IF(push_inst(compiler, SELECT_FOP(op, FITOS, FITOD) | DA(dst_r) | S2A(TMP_FREG1), MOVABLE_INS));
1005
1006 if (dst & SLJIT_MEM)
1007 return emit_op_mem2(compiler, FLOAT_DATA(op), TMP_FREG1, dst, dstw, 0, 0);
1008 return SLJIT_SUCCESS;
1009 }
1010
sljit_emit_fop1_cmp(struct sljit_compiler * compiler,sljit_si op,sljit_si src1,sljit_sw src1w,sljit_si src2,sljit_sw src2w)1011 static SLJIT_INLINE sljit_si sljit_emit_fop1_cmp(struct sljit_compiler *compiler, sljit_si op,
1012 sljit_si src1, sljit_sw src1w,
1013 sljit_si src2, sljit_sw src2w)
1014 {
1015 if (src1 & SLJIT_MEM) {
1016 FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG1, src1, src1w, src2, src2w));
1017 src1 = TMP_FREG1;
1018 }
1019 else
1020 src1 <<= 1;
1021
1022 if (src2 & SLJIT_MEM) {
1023 FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG2, src2, src2w, 0, 0));
1024 src2 = TMP_FREG2;
1025 }
1026 else
1027 src2 <<= 1;
1028
1029 return push_inst(compiler, SELECT_FOP(op, FCMPS, FCMPD) | S1A(src1) | S2A(src2), FCC_IS_SET | MOVABLE_INS);
1030 }
1031
sljit_emit_fop1(struct sljit_compiler * compiler,sljit_si op,sljit_si dst,sljit_sw dstw,sljit_si src,sljit_sw srcw)1032 SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_fop1(struct sljit_compiler *compiler, sljit_si op,
1033 sljit_si dst, sljit_sw dstw,
1034 sljit_si src, sljit_sw srcw)
1035 {
1036 sljit_si dst_r;
1037
1038 CHECK_ERROR();
1039 compiler->cache_arg = 0;
1040 compiler->cache_argw = 0;
1041
1042 SLJIT_COMPILE_ASSERT((SLJIT_SINGLE_OP == 0x100) && !(DOUBLE_DATA & 0x2), float_transfer_bit_error);
1043 SELECT_FOP1_OPERATION_WITH_CHECKS(compiler, op, dst, dstw, src, srcw);
1044
1045 if (GET_OPCODE(op) == SLJIT_CONVD_FROMS)
1046 op ^= SLJIT_SINGLE_OP;
1047
1048 dst_r = FAST_IS_REG(dst) ? (dst << 1) : TMP_FREG1;
1049
1050 if (src & SLJIT_MEM) {
1051 FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op) | LOAD_DATA, dst_r, src, srcw, dst, dstw));
1052 src = dst_r;
1053 }
1054 else
1055 src <<= 1;
1056
1057 switch (GET_OPCODE(op)) {
1058 case SLJIT_DMOV:
1059 if (src != dst_r) {
1060 if (dst_r != TMP_FREG1) {
1061 FAIL_IF(push_inst(compiler, FMOVS | DA(dst_r) | S2A(src), MOVABLE_INS));
1062 if (!(op & SLJIT_SINGLE_OP))
1063 FAIL_IF(push_inst(compiler, FMOVS | DA(dst_r | 1) | S2A(src | 1), MOVABLE_INS));
1064 }
1065 else
1066 dst_r = src;
1067 }
1068 break;
1069 case SLJIT_DNEG:
1070 FAIL_IF(push_inst(compiler, FNEGS | 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_DABS:
1075 FAIL_IF(push_inst(compiler, FABSS | DA(dst_r) | S2A(src), MOVABLE_INS));
1076 if (dst_r != src && !(op & SLJIT_SINGLE_OP))
1077 FAIL_IF(push_inst(compiler, FMOVS | DA(dst_r | 1) | S2A(src | 1), MOVABLE_INS));
1078 break;
1079 case SLJIT_CONVD_FROMS:
1080 FAIL_IF(push_inst(compiler, SELECT_FOP(op, FSTOD, FDTOS) | DA(dst_r) | S2A(src), MOVABLE_INS));
1081 op ^= SLJIT_SINGLE_OP;
1082 break;
1083 }
1084
1085 if (dst & SLJIT_MEM)
1086 FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op), dst_r, dst, dstw, 0, 0));
1087 return SLJIT_SUCCESS;
1088 }
1089
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)1090 SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_fop2(struct sljit_compiler *compiler, sljit_si op,
1091 sljit_si dst, sljit_sw dstw,
1092 sljit_si src1, sljit_sw src1w,
1093 sljit_si src2, sljit_sw src2w)
1094 {
1095 sljit_si dst_r, flags = 0;
1096
1097 CHECK_ERROR();
1098 CHECK(check_sljit_emit_fop2(compiler, op, dst, dstw, src1, src1w, src2, src2w));
1099 ADJUST_LOCAL_OFFSET(dst, dstw);
1100 ADJUST_LOCAL_OFFSET(src1, src1w);
1101 ADJUST_LOCAL_OFFSET(src2, src2w);
1102
1103 compiler->cache_arg = 0;
1104 compiler->cache_argw = 0;
1105
1106 dst_r = FAST_IS_REG(dst) ? (dst << 1) : TMP_FREG2;
1107
1108 if (src1 & SLJIT_MEM) {
1109 if (getput_arg_fast(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG1, src1, src1w)) {
1110 FAIL_IF(compiler->error);
1111 src1 = TMP_FREG1;
1112 } else
1113 flags |= SLOW_SRC1;
1114 }
1115 else
1116 src1 <<= 1;
1117
1118 if (src2 & SLJIT_MEM) {
1119 if (getput_arg_fast(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG2, src2, src2w)) {
1120 FAIL_IF(compiler->error);
1121 src2 = TMP_FREG2;
1122 } else
1123 flags |= SLOW_SRC2;
1124 }
1125 else
1126 src2 <<= 1;
1127
1128 if ((flags & (SLOW_SRC1 | SLOW_SRC2)) == (SLOW_SRC1 | SLOW_SRC2)) {
1129 if (!can_cache(src1, src1w, src2, src2w) && can_cache(src1, src1w, dst, dstw)) {
1130 FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG2, src2, src2w, src1, src1w));
1131 FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG1, src1, src1w, dst, dstw));
1132 }
1133 else {
1134 FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG1, src1, src1w, src2, src2w));
1135 FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG2, src2, src2w, dst, dstw));
1136 }
1137 }
1138 else if (flags & SLOW_SRC1)
1139 FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG1, src1, src1w, dst, dstw));
1140 else if (flags & SLOW_SRC2)
1141 FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG2, src2, src2w, dst, dstw));
1142
1143 if (flags & SLOW_SRC1)
1144 src1 = TMP_FREG1;
1145 if (flags & SLOW_SRC2)
1146 src2 = TMP_FREG2;
1147
1148 switch (GET_OPCODE(op)) {
1149 case SLJIT_DADD:
1150 FAIL_IF(push_inst(compiler, SELECT_FOP(op, FADDS, FADDD) | DA(dst_r) | S1A(src1) | S2A(src2), MOVABLE_INS));
1151 break;
1152
1153 case SLJIT_DSUB:
1154 FAIL_IF(push_inst(compiler, SELECT_FOP(op, FSUBS, FSUBD) | DA(dst_r) | S1A(src1) | S2A(src2), MOVABLE_INS));
1155 break;
1156
1157 case SLJIT_DMUL:
1158 FAIL_IF(push_inst(compiler, SELECT_FOP(op, FMULS, FMULD) | DA(dst_r) | S1A(src1) | S2A(src2), MOVABLE_INS));
1159 break;
1160
1161 case SLJIT_DDIV:
1162 FAIL_IF(push_inst(compiler, SELECT_FOP(op, FDIVS, FDIVD) | DA(dst_r) | S1A(src1) | S2A(src2), MOVABLE_INS));
1163 break;
1164 }
1165
1166 if (dst_r == TMP_FREG2)
1167 FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op), TMP_FREG2, dst, dstw, 0, 0));
1168
1169 return SLJIT_SUCCESS;
1170 }
1171
1172 #undef FLOAT_DATA
1173 #undef SELECT_FOP
1174
1175 /* --------------------------------------------------------------------- */
1176 /* Other instructions */
1177 /* --------------------------------------------------------------------- */
1178
sljit_emit_fast_enter(struct sljit_compiler * compiler,sljit_si dst,sljit_sw dstw)1179 SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_fast_enter(struct sljit_compiler *compiler, sljit_si dst, sljit_sw dstw)
1180 {
1181 CHECK_ERROR();
1182 CHECK(check_sljit_emit_fast_enter(compiler, dst, dstw));
1183 ADJUST_LOCAL_OFFSET(dst, dstw);
1184
1185 /* For UNUSED dst. Uncommon, but possible. */
1186 if (dst == SLJIT_UNUSED)
1187 return SLJIT_SUCCESS;
1188
1189 if (FAST_IS_REG(dst))
1190 return push_inst(compiler, OR | D(dst) | S1(0) | S2(TMP_LINK), DR(dst));
1191
1192 /* Memory. */
1193 return emit_op_mem(compiler, WORD_DATA, TMP_LINK, dst, dstw);
1194 }
1195
sljit_emit_fast_return(struct sljit_compiler * compiler,sljit_si src,sljit_sw srcw)1196 SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_fast_return(struct sljit_compiler *compiler, sljit_si src, sljit_sw srcw)
1197 {
1198 CHECK_ERROR();
1199 CHECK(check_sljit_emit_fast_return(compiler, src, srcw));
1200 ADJUST_LOCAL_OFFSET(src, srcw);
1201
1202 if (FAST_IS_REG(src))
1203 FAIL_IF(push_inst(compiler, OR | D(TMP_LINK) | S1(0) | S2(src), DR(TMP_LINK)));
1204 else if (src & SLJIT_MEM)
1205 FAIL_IF(emit_op_mem(compiler, WORD_DATA | LOAD_DATA, TMP_LINK, src, srcw));
1206 else if (src & SLJIT_IMM)
1207 FAIL_IF(load_immediate(compiler, TMP_LINK, srcw));
1208
1209 FAIL_IF(push_inst(compiler, JMPL | D(0) | S1(TMP_LINK) | IMM(8), UNMOVABLE_INS));
1210 return push_inst(compiler, NOP, UNMOVABLE_INS);
1211 }
1212
1213 /* --------------------------------------------------------------------- */
1214 /* Conditional instructions */
1215 /* --------------------------------------------------------------------- */
1216
sljit_emit_label(struct sljit_compiler * compiler)1217 SLJIT_API_FUNC_ATTRIBUTE struct sljit_label* sljit_emit_label(struct sljit_compiler *compiler)
1218 {
1219 struct sljit_label *label;
1220
1221 CHECK_ERROR_PTR();
1222 CHECK_PTR(check_sljit_emit_label(compiler));
1223
1224 if (compiler->last_label && compiler->last_label->size == compiler->size)
1225 return compiler->last_label;
1226
1227 label = (struct sljit_label*)ensure_abuf(compiler, sizeof(struct sljit_label));
1228 PTR_FAIL_IF(!label);
1229 set_label(label, compiler);
1230 compiler->delay_slot = UNMOVABLE_INS;
1231 return label;
1232 }
1233
get_cc(sljit_si type)1234 static sljit_ins get_cc(sljit_si type)
1235 {
1236 switch (type) {
1237 case SLJIT_EQUAL:
1238 case SLJIT_MUL_NOT_OVERFLOW:
1239 case SLJIT_D_NOT_EQUAL: /* Unordered. */
1240 return DA(0x1);
1241
1242 case SLJIT_NOT_EQUAL:
1243 case SLJIT_MUL_OVERFLOW:
1244 case SLJIT_D_EQUAL:
1245 return DA(0x9);
1246
1247 case SLJIT_LESS:
1248 case SLJIT_D_GREATER: /* Unordered. */
1249 return DA(0x5);
1250
1251 case SLJIT_GREATER_EQUAL:
1252 case SLJIT_D_LESS_EQUAL:
1253 return DA(0xd);
1254
1255 case SLJIT_GREATER:
1256 case SLJIT_D_GREATER_EQUAL: /* Unordered. */
1257 return DA(0xc);
1258
1259 case SLJIT_LESS_EQUAL:
1260 case SLJIT_D_LESS:
1261 return DA(0x4);
1262
1263 case SLJIT_SIG_LESS:
1264 return DA(0x3);
1265
1266 case SLJIT_SIG_GREATER_EQUAL:
1267 return DA(0xb);
1268
1269 case SLJIT_SIG_GREATER:
1270 return DA(0xa);
1271
1272 case SLJIT_SIG_LESS_EQUAL:
1273 return DA(0x2);
1274
1275 case SLJIT_OVERFLOW:
1276 case SLJIT_D_UNORDERED:
1277 return DA(0x7);
1278
1279 case SLJIT_NOT_OVERFLOW:
1280 case SLJIT_D_ORDERED:
1281 return DA(0xf);
1282
1283 default:
1284 SLJIT_ASSERT_STOP();
1285 return DA(0x8);
1286 }
1287 }
1288
sljit_emit_jump(struct sljit_compiler * compiler,sljit_si type)1289 SLJIT_API_FUNC_ATTRIBUTE struct sljit_jump* sljit_emit_jump(struct sljit_compiler *compiler, sljit_si type)
1290 {
1291 struct sljit_jump *jump;
1292
1293 CHECK_ERROR_PTR();
1294 CHECK_PTR(check_sljit_emit_jump(compiler, type));
1295
1296 jump = (struct sljit_jump*)ensure_abuf(compiler, sizeof(struct sljit_jump));
1297 PTR_FAIL_IF(!jump);
1298 set_jump(jump, compiler, type & SLJIT_REWRITABLE_JUMP);
1299 type &= 0xff;
1300
1301 if (type < SLJIT_D_EQUAL) {
1302 jump->flags |= IS_COND;
1303 if (((compiler->delay_slot & DST_INS_MASK) != UNMOVABLE_INS) && !(compiler->delay_slot & ICC_IS_SET))
1304 jump->flags |= IS_MOVABLE;
1305 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32)
1306 PTR_FAIL_IF(push_inst(compiler, BICC | get_cc(type ^ 1) | 5, UNMOVABLE_INS));
1307 #else
1308 #error "Implementation required"
1309 #endif
1310 }
1311 else if (type < SLJIT_JUMP) {
1312 jump->flags |= IS_COND;
1313 if (((compiler->delay_slot & DST_INS_MASK) != UNMOVABLE_INS) && !(compiler->delay_slot & FCC_IS_SET))
1314 jump->flags |= IS_MOVABLE;
1315 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32)
1316 PTR_FAIL_IF(push_inst(compiler, FBFCC | get_cc(type ^ 1) | 5, UNMOVABLE_INS));
1317 #else
1318 #error "Implementation required"
1319 #endif
1320 } else {
1321 if ((compiler->delay_slot & DST_INS_MASK) != UNMOVABLE_INS)
1322 jump->flags |= IS_MOVABLE;
1323 if (type >= SLJIT_FAST_CALL)
1324 jump->flags |= IS_CALL;
1325 }
1326
1327 PTR_FAIL_IF(emit_const(compiler, TMP_REG2, 0));
1328 PTR_FAIL_IF(push_inst(compiler, JMPL | D(type >= SLJIT_FAST_CALL ? TMP_LINK : 0) | S1(TMP_REG2) | IMM(0), UNMOVABLE_INS));
1329 jump->addr = compiler->size;
1330 PTR_FAIL_IF(push_inst(compiler, NOP, UNMOVABLE_INS));
1331
1332 return jump;
1333 }
1334
sljit_emit_ijump(struct sljit_compiler * compiler,sljit_si type,sljit_si src,sljit_sw srcw)1335 SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_ijump(struct sljit_compiler *compiler, sljit_si type, sljit_si src, sljit_sw srcw)
1336 {
1337 struct sljit_jump *jump = NULL;
1338 sljit_si src_r;
1339
1340 CHECK_ERROR();
1341 CHECK(check_sljit_emit_ijump(compiler, type, src, srcw));
1342 ADJUST_LOCAL_OFFSET(src, srcw);
1343
1344 if (FAST_IS_REG(src))
1345 src_r = src;
1346 else if (src & SLJIT_IMM) {
1347 jump = (struct sljit_jump*)ensure_abuf(compiler, sizeof(struct sljit_jump));
1348 FAIL_IF(!jump);
1349 set_jump(jump, compiler, JUMP_ADDR);
1350 jump->u.target = srcw;
1351 if ((compiler->delay_slot & DST_INS_MASK) != UNMOVABLE_INS)
1352 jump->flags |= IS_MOVABLE;
1353 if (type >= SLJIT_FAST_CALL)
1354 jump->flags |= IS_CALL;
1355
1356 FAIL_IF(emit_const(compiler, TMP_REG2, 0));
1357 src_r = TMP_REG2;
1358 }
1359 else {
1360 FAIL_IF(emit_op_mem(compiler, WORD_DATA | LOAD_DATA, TMP_REG2, src, srcw));
1361 src_r = TMP_REG2;
1362 }
1363
1364 FAIL_IF(push_inst(compiler, JMPL | D(type >= SLJIT_FAST_CALL ? TMP_LINK : 0) | S1(src_r) | IMM(0), UNMOVABLE_INS));
1365 if (jump)
1366 jump->addr = compiler->size;
1367 return push_inst(compiler, NOP, UNMOVABLE_INS);
1368 }
1369
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)1370 SLJIT_API_FUNC_ATTRIBUTE sljit_si sljit_emit_op_flags(struct sljit_compiler *compiler, sljit_si op,
1371 sljit_si dst, sljit_sw dstw,
1372 sljit_si src, sljit_sw srcw,
1373 sljit_si type)
1374 {
1375 sljit_si reg, flags = (GET_FLAGS(op) ? SET_FLAGS : 0);
1376
1377 CHECK_ERROR();
1378 CHECK(check_sljit_emit_op_flags(compiler, op, dst, dstw, src, srcw, type));
1379 ADJUST_LOCAL_OFFSET(dst, dstw);
1380
1381 if (dst == SLJIT_UNUSED)
1382 return SLJIT_SUCCESS;
1383
1384 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32)
1385 op = GET_OPCODE(op);
1386 reg = (op < SLJIT_ADD && FAST_IS_REG(dst)) ? dst : TMP_REG2;
1387
1388 compiler->cache_arg = 0;
1389 compiler->cache_argw = 0;
1390 if (op >= SLJIT_ADD && (src & SLJIT_MEM)) {
1391 ADJUST_LOCAL_OFFSET(src, srcw);
1392 FAIL_IF(emit_op_mem2(compiler, WORD_DATA | LOAD_DATA, TMP_REG1, src, srcw, dst, dstw));
1393 src = TMP_REG1;
1394 srcw = 0;
1395 }
1396
1397 type &= 0xff;
1398 if (type < SLJIT_D_EQUAL)
1399 FAIL_IF(push_inst(compiler, BICC | get_cc(type) | 3, UNMOVABLE_INS));
1400 else
1401 FAIL_IF(push_inst(compiler, FBFCC | get_cc(type) | 3, UNMOVABLE_INS));
1402
1403 FAIL_IF(push_inst(compiler, OR | D(reg) | S1(0) | IMM(1), UNMOVABLE_INS));
1404 FAIL_IF(push_inst(compiler, OR | D(reg) | S1(0) | IMM(0), UNMOVABLE_INS));
1405
1406 if (op >= SLJIT_ADD)
1407 return emit_op(compiler, op, flags | CUMULATIVE_OP | IMM_OP | ALT_KEEP_CACHE, dst, dstw, src, srcw, TMP_REG2, 0);
1408
1409 return (reg == TMP_REG2) ? emit_op_mem(compiler, WORD_DATA, TMP_REG2, dst, dstw) : SLJIT_SUCCESS;
1410 #else
1411 #error "Implementation required"
1412 #endif
1413 }
1414
sljit_emit_const(struct sljit_compiler * compiler,sljit_si dst,sljit_sw dstw,sljit_sw init_value)1415 SLJIT_API_FUNC_ATTRIBUTE struct sljit_const* sljit_emit_const(struct sljit_compiler *compiler, sljit_si dst, sljit_sw dstw, sljit_sw init_value)
1416 {
1417 sljit_si reg;
1418 struct sljit_const *const_;
1419
1420 CHECK_ERROR_PTR();
1421 CHECK_PTR(check_sljit_emit_const(compiler, dst, dstw, init_value));
1422 ADJUST_LOCAL_OFFSET(dst, dstw);
1423
1424 const_ = (struct sljit_const*)ensure_abuf(compiler, sizeof(struct sljit_const));
1425 PTR_FAIL_IF(!const_);
1426 set_const(const_, compiler);
1427
1428 reg = SLOW_IS_REG(dst) ? dst : TMP_REG2;
1429
1430 PTR_FAIL_IF(emit_const(compiler, reg, init_value));
1431
1432 if (dst & SLJIT_MEM)
1433 PTR_FAIL_IF(emit_op_mem(compiler, WORD_DATA, TMP_REG2, dst, dstw));
1434 return const_;
1435 }
1436