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 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_u32 sljit_ins;
35
36 #if (defined SLJIT_CACHE_FLUSH_OWN_IMPL && SLJIT_CACHE_FLUSH_OWN_IMPL)
37
sparc_cache_flush(sljit_ins * from,sljit_ins * to)38 static void sparc_cache_flush(sljit_ins *from, sljit_ins *to)
39 {
40 #if defined(__SUNPRO_C) && __SUNPRO_C < 0x590
41 __asm (
42 /* if (from == to) return */
43 "cmp %i0, %i1\n"
44 "be .leave\n"
45 "nop\n"
46
47 /* loop until from >= to */
48 ".mainloop:\n"
49 "flush %i0\n"
50 "add %i0, 8, %i0\n"
51 "cmp %i0, %i1\n"
52 "bcs .mainloop\n"
53 "nop\n"
54
55 /* The comparison was done above. */
56 "bne .leave\n"
57 /* nop is not necessary here, since the
58 sub operation has no side effect. */
59 "sub %i0, 4, %i0\n"
60 "flush %i0\n"
61 ".leave:"
62 );
63 #else
64 if (SLJIT_UNLIKELY(from == to))
65 return;
66
67 do {
68 __asm__ volatile (
69 "flush %0\n"
70 : : "r"(from)
71 );
72 /* Operates at least on doubleword. */
73 from += 2;
74 } while (from < to);
75
76 if (from == to) {
77 /* Flush the last word. */
78 from --;
79 __asm__ volatile (
80 "flush %0\n"
81 : : "r"(from)
82 );
83 }
84 #endif
85 }
86
87 #endif /* (defined SLJIT_CACHE_FLUSH_OWN_IMPL && SLJIT_CACHE_FLUSH_OWN_IMPL) */
88
89 /* TMP_REG2 is not used by getput_arg */
90 #define TMP_REG1 (SLJIT_NUMBER_OF_REGISTERS + 2)
91 #define TMP_REG2 (SLJIT_NUMBER_OF_REGISTERS + 3)
92 #define TMP_REG3 (SLJIT_NUMBER_OF_REGISTERS + 4)
93 #define TMP_LINK (SLJIT_NUMBER_OF_REGISTERS + 5)
94
95 #define TMP_FREG1 (0)
96 #define TMP_FREG2 ((SLJIT_NUMBER_OF_FLOAT_REGISTERS + 1) << 1)
97
98 static const sljit_u8 reg_map[SLJIT_NUMBER_OF_REGISTERS + 6] = {
99 0, 8, 9, 10, 13, 29, 28, 27, 23, 22, 21, 20, 19, 18, 17, 16, 26, 25, 24, 14, 1, 11, 12, 15
100 };
101
102 /* --------------------------------------------------------------------- */
103 /* Instrucion forms */
104 /* --------------------------------------------------------------------- */
105
106 #define D(d) (reg_map[d] << 25)
107 #define DA(d) ((d) << 25)
108 #define S1(s1) (reg_map[s1] << 14)
109 #define S2(s2) (reg_map[s2])
110 #define S1A(s1) ((s1) << 14)
111 #define S2A(s2) (s2)
112 #define IMM_ARG 0x2000
113 #define DOP(op) ((op) << 5)
114 #define IMM(imm) (((imm) & 0x1fff) | IMM_ARG)
115
116 #define DR(dr) (reg_map[dr])
117 #define OPC1(opcode) ((opcode) << 30)
118 #define OPC2(opcode) ((opcode) << 22)
119 #define OPC3(opcode) ((opcode) << 19)
120 #define SET_FLAGS OPC3(0x10)
121
122 #define ADD (OPC1(0x2) | OPC3(0x00))
123 #define ADDC (OPC1(0x2) | OPC3(0x08))
124 #define AND (OPC1(0x2) | OPC3(0x01))
125 #define ANDN (OPC1(0x2) | OPC3(0x05))
126 #define CALL (OPC1(0x1))
127 #define FABSS (OPC1(0x2) | OPC3(0x34) | DOP(0x09))
128 #define FADDD (OPC1(0x2) | OPC3(0x34) | DOP(0x42))
129 #define FADDS (OPC1(0x2) | OPC3(0x34) | DOP(0x41))
130 #define FCMPD (OPC1(0x2) | OPC3(0x35) | DOP(0x52))
131 #define FCMPS (OPC1(0x2) | OPC3(0x35) | DOP(0x51))
132 #define FDIVD (OPC1(0x2) | OPC3(0x34) | DOP(0x4e))
133 #define FDIVS (OPC1(0x2) | OPC3(0x34) | DOP(0x4d))
134 #define FDTOI (OPC1(0x2) | OPC3(0x34) | DOP(0xd2))
135 #define FDTOS (OPC1(0x2) | OPC3(0x34) | DOP(0xc6))
136 #define FITOD (OPC1(0x2) | OPC3(0x34) | DOP(0xc8))
137 #define FITOS (OPC1(0x2) | OPC3(0x34) | DOP(0xc4))
138 #define FMOVS (OPC1(0x2) | OPC3(0x34) | DOP(0x01))
139 #define FMULD (OPC1(0x2) | OPC3(0x34) | DOP(0x4a))
140 #define FMULS (OPC1(0x2) | OPC3(0x34) | DOP(0x49))
141 #define FNEGS (OPC1(0x2) | OPC3(0x34) | DOP(0x05))
142 #define FSTOD (OPC1(0x2) | OPC3(0x34) | DOP(0xc9))
143 #define FSTOI (OPC1(0x2) | OPC3(0x34) | DOP(0xd1))
144 #define FSUBD (OPC1(0x2) | OPC3(0x34) | DOP(0x46))
145 #define FSUBS (OPC1(0x2) | OPC3(0x34) | DOP(0x45))
146 #define JMPL (OPC1(0x2) | OPC3(0x38))
147 #define NOP (OPC1(0x0) | OPC2(0x04))
148 #define OR (OPC1(0x2) | OPC3(0x02))
149 #define ORN (OPC1(0x2) | OPC3(0x06))
150 #define RDY (OPC1(0x2) | OPC3(0x28) | S1A(0))
151 #define RESTORE (OPC1(0x2) | OPC3(0x3d))
152 #define SAVE (OPC1(0x2) | OPC3(0x3c))
153 #define SETHI (OPC1(0x0) | OPC2(0x04))
154 #define SLL (OPC1(0x2) | OPC3(0x25))
155 #define SLLX (OPC1(0x2) | OPC3(0x25) | (1 << 12))
156 #define SRA (OPC1(0x2) | OPC3(0x27))
157 #define SRAX (OPC1(0x2) | OPC3(0x27) | (1 << 12))
158 #define SRL (OPC1(0x2) | OPC3(0x26))
159 #define SRLX (OPC1(0x2) | OPC3(0x26) | (1 << 12))
160 #define SUB (OPC1(0x2) | OPC3(0x04))
161 #define SUBC (OPC1(0x2) | OPC3(0x0c))
162 #define TA (OPC1(0x2) | OPC3(0x3a) | (8 << 25))
163 #define WRY (OPC1(0x2) | OPC3(0x30) | DA(0))
164 #define XOR (OPC1(0x2) | OPC3(0x03))
165 #define XNOR (OPC1(0x2) | OPC3(0x07))
166
167 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32)
168 #define MAX_DISP (0x1fffff)
169 #define MIN_DISP (-0x200000)
170 #define DISP_MASK (0x3fffff)
171
172 #define BICC (OPC1(0x0) | OPC2(0x2))
173 #define FBFCC (OPC1(0x0) | OPC2(0x6))
174 #define SLL_W SLL
175 #define SDIV (OPC1(0x2) | OPC3(0x0f))
176 #define SMUL (OPC1(0x2) | OPC3(0x0b))
177 #define UDIV (OPC1(0x2) | OPC3(0x0e))
178 #define UMUL (OPC1(0x2) | OPC3(0x0a))
179 #else
180 #define SLL_W SLLX
181 #endif
182
183 #define SIMM_MAX (0x0fff)
184 #define SIMM_MIN (-0x1000)
185
186 /* dest_reg is the absolute name of the register
187 Useful for reordering instructions in the delay slot. */
push_inst(struct sljit_compiler * compiler,sljit_ins ins,sljit_s32 delay_slot)188 static sljit_s32 push_inst(struct sljit_compiler *compiler, sljit_ins ins, sljit_s32 delay_slot)
189 {
190 sljit_ins *ptr;
191 SLJIT_ASSERT((delay_slot & DST_INS_MASK) == UNMOVABLE_INS
192 || (delay_slot & DST_INS_MASK) == MOVABLE_INS
193 || (delay_slot & DST_INS_MASK) == ((ins >> 25) & 0x1f));
194 ptr = (sljit_ins*)ensure_buf(compiler, sizeof(sljit_ins));
195 FAIL_IF(!ptr);
196 *ptr = ins;
197 compiler->size++;
198 compiler->delay_slot = delay_slot;
199 return SLJIT_SUCCESS;
200 }
201
detect_jump_type(struct sljit_jump * jump,sljit_ins * code_ptr,sljit_ins * code)202 static SLJIT_INLINE sljit_ins* detect_jump_type(struct sljit_jump *jump, sljit_ins *code_ptr, sljit_ins *code)
203 {
204 sljit_sw diff;
205 sljit_uw target_addr;
206 sljit_ins *inst;
207 sljit_ins saved_inst;
208
209 if (jump->flags & SLJIT_REWRITABLE_JUMP)
210 return code_ptr;
211
212 if (jump->flags & JUMP_ADDR)
213 target_addr = jump->u.target;
214 else {
215 SLJIT_ASSERT(jump->flags & JUMP_LABEL);
216 target_addr = (sljit_uw)(code + jump->u.label->size);
217 }
218 inst = (sljit_ins*)jump->addr;
219
220 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32)
221 if (jump->flags & IS_CALL) {
222 /* Call is always patchable on sparc 32. */
223 jump->flags |= PATCH_CALL;
224 if (jump->flags & IS_MOVABLE) {
225 inst[0] = inst[-1];
226 inst[-1] = CALL;
227 jump->addr -= sizeof(sljit_ins);
228 return inst;
229 }
230 inst[0] = CALL;
231 inst[1] = NOP;
232 return inst + 1;
233 }
234 #else
235 /* Both calls and BPr instructions shall not pass this point. */
236 #error "Implementation required"
237 #endif
238
239 if (jump->flags & IS_COND)
240 inst--;
241
242 if (jump->flags & IS_MOVABLE) {
243 diff = ((sljit_sw)target_addr - (sljit_sw)(inst - 1)) >> 2;
244 if (diff <= MAX_DISP && diff >= MIN_DISP) {
245 jump->flags |= PATCH_B;
246 inst--;
247 if (jump->flags & IS_COND) {
248 saved_inst = inst[0];
249 inst[0] = inst[1] ^ (1 << 28);
250 inst[1] = saved_inst;
251 } else {
252 inst[1] = inst[0];
253 inst[0] = BICC | DA(0x8);
254 }
255 jump->addr = (sljit_uw)inst;
256 return inst + 1;
257 }
258 }
259
260 diff = ((sljit_sw)target_addr - (sljit_sw)(inst)) >> 2;
261 if (diff <= MAX_DISP && diff >= MIN_DISP) {
262 jump->flags |= PATCH_B;
263 if (jump->flags & IS_COND)
264 inst[0] ^= (1 << 28);
265 else
266 inst[0] = BICC | DA(0x8);
267 inst[1] = NOP;
268 jump->addr = (sljit_uw)inst;
269 return inst + 1;
270 }
271
272 return code_ptr;
273 }
274
sljit_generate_code(struct sljit_compiler * compiler)275 SLJIT_API_FUNC_ATTRIBUTE void* sljit_generate_code(struct sljit_compiler *compiler)
276 {
277 struct sljit_memory_fragment *buf;
278 sljit_ins *code;
279 sljit_ins *code_ptr;
280 sljit_ins *buf_ptr;
281 sljit_ins *buf_end;
282 sljit_uw word_count;
283 sljit_uw addr;
284
285 struct sljit_label *label;
286 struct sljit_jump *jump;
287 struct sljit_const *const_;
288
289 CHECK_ERROR_PTR();
290 CHECK_PTR(check_sljit_generate_code(compiler));
291 reverse_buf(compiler);
292
293 code = (sljit_ins*)SLJIT_MALLOC_EXEC(compiler->size * sizeof(sljit_ins));
294 PTR_FAIL_WITH_EXEC_IF(code);
295 buf = compiler->buf;
296
297 code_ptr = code;
298 word_count = 0;
299 label = compiler->labels;
300 jump = compiler->jumps;
301 const_ = compiler->consts;
302 do {
303 buf_ptr = (sljit_ins*)buf->memory;
304 buf_end = buf_ptr + (buf->used_size >> 2);
305 do {
306 *code_ptr = *buf_ptr++;
307 SLJIT_ASSERT(!label || label->size >= word_count);
308 SLJIT_ASSERT(!jump || jump->addr >= word_count);
309 SLJIT_ASSERT(!const_ || const_->addr >= word_count);
310 /* These structures are ordered by their address. */
311 if (label && label->size == word_count) {
312 /* Just recording the address. */
313 label->addr = (sljit_uw)code_ptr;
314 label->size = code_ptr - code;
315 label = label->next;
316 }
317 if (jump && jump->addr == word_count) {
318 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32)
319 jump->addr = (sljit_uw)(code_ptr - 3);
320 #else
321 jump->addr = (sljit_uw)(code_ptr - 6);
322 #endif
323 code_ptr = detect_jump_type(jump, code_ptr, code);
324 jump = jump->next;
325 }
326 if (const_ && const_->addr == word_count) {
327 /* Just recording the address. */
328 const_->addr = (sljit_uw)code_ptr;
329 const_ = const_->next;
330 }
331 code_ptr ++;
332 word_count ++;
333 } while (buf_ptr < buf_end);
334
335 buf = buf->next;
336 } while (buf);
337
338 if (label && label->size == word_count) {
339 label->addr = (sljit_uw)code_ptr;
340 label->size = code_ptr - code;
341 label = label->next;
342 }
343
344 SLJIT_ASSERT(!label);
345 SLJIT_ASSERT(!jump);
346 SLJIT_ASSERT(!const_);
347 SLJIT_ASSERT(code_ptr - code <= (sljit_s32)compiler->size);
348
349 jump = compiler->jumps;
350 while (jump) {
351 do {
352 addr = (jump->flags & JUMP_LABEL) ? jump->u.label->addr : jump->u.target;
353 buf_ptr = (sljit_ins*)jump->addr;
354
355 if (jump->flags & PATCH_CALL) {
356 addr = (sljit_sw)(addr - jump->addr) >> 2;
357 SLJIT_ASSERT((sljit_sw)addr <= 0x1fffffff && (sljit_sw)addr >= -0x20000000);
358 buf_ptr[0] = CALL | (addr & 0x3fffffff);
359 break;
360 }
361 if (jump->flags & PATCH_B) {
362 addr = (sljit_sw)(addr - jump->addr) >> 2;
363 SLJIT_ASSERT((sljit_sw)addr <= MAX_DISP && (sljit_sw)addr >= MIN_DISP);
364 buf_ptr[0] = (buf_ptr[0] & ~DISP_MASK) | (addr & DISP_MASK);
365 break;
366 }
367
368 /* Set the fields of immediate loads. */
369 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32)
370 buf_ptr[0] = (buf_ptr[0] & 0xffc00000) | ((addr >> 10) & 0x3fffff);
371 buf_ptr[1] = (buf_ptr[1] & 0xfffffc00) | (addr & 0x3ff);
372 #else
373 #error "Implementation required"
374 #endif
375 } while (0);
376 jump = jump->next;
377 }
378
379
380 compiler->error = SLJIT_ERR_COMPILED;
381 compiler->executable_size = (code_ptr - code) * sizeof(sljit_ins);
382 SLJIT_CACHE_FLUSH(code, code_ptr);
383 return code;
384 }
385
386 /* --------------------------------------------------------------------- */
387 /* Entry, exit */
388 /* --------------------------------------------------------------------- */
389
390 /* Creates an index in data_transfer_insts array. */
391 #define LOAD_DATA 0x01
392 #define WORD_DATA 0x00
393 #define BYTE_DATA 0x02
394 #define HALF_DATA 0x04
395 #define INT_DATA 0x06
396 #define SIGNED_DATA 0x08
397 /* Separates integer and floating point registers */
398 #define GPR_REG 0x0f
399 #define DOUBLE_DATA 0x10
400 #define SINGLE_DATA 0x12
401
402 #define MEM_MASK 0x1f
403
404 #define WRITE_BACK 0x00020
405 #define ARG_TEST 0x00040
406 #define ALT_KEEP_CACHE 0x00080
407 #define CUMULATIVE_OP 0x00100
408 #define IMM_OP 0x00200
409 #define SRC2_IMM 0x00400
410
411 #define REG_DEST 0x00800
412 #define REG2_SOURCE 0x01000
413 #define SLOW_SRC1 0x02000
414 #define SLOW_SRC2 0x04000
415 #define SLOW_DEST 0x08000
416
417 /* SET_FLAGS (0x10 << 19) also belong here! */
418
419 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32)
420 #include "sljitNativeSPARC_32.c"
421 #else
422 #include "sljitNativeSPARC_64.c"
423 #endif
424
sljit_emit_enter(struct sljit_compiler * compiler,sljit_s32 options,sljit_s32 args,sljit_s32 scratches,sljit_s32 saveds,sljit_s32 fscratches,sljit_s32 fsaveds,sljit_s32 local_size)425 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_enter(struct sljit_compiler *compiler,
426 sljit_s32 options, sljit_s32 args, sljit_s32 scratches, sljit_s32 saveds,
427 sljit_s32 fscratches, sljit_s32 fsaveds, sljit_s32 local_size)
428 {
429 CHECK_ERROR();
430 CHECK(check_sljit_emit_enter(compiler, options, args, scratches, saveds, fscratches, fsaveds, local_size));
431 set_emit_enter(compiler, options, args, scratches, saveds, fscratches, fsaveds, local_size);
432
433 local_size = (local_size + SLJIT_LOCALS_OFFSET + 7) & ~0x7;
434 compiler->local_size = local_size;
435
436 if (local_size <= SIMM_MAX) {
437 FAIL_IF(push_inst(compiler, SAVE | D(SLJIT_SP) | S1(SLJIT_SP) | IMM(-local_size), UNMOVABLE_INS));
438 }
439 else {
440 FAIL_IF(load_immediate(compiler, TMP_REG1, -local_size));
441 FAIL_IF(push_inst(compiler, SAVE | D(SLJIT_SP) | S1(SLJIT_SP) | S2(TMP_REG1), UNMOVABLE_INS));
442 }
443
444 /* Arguments are in their appropriate registers. */
445
446 return SLJIT_SUCCESS;
447 }
448
sljit_set_context(struct sljit_compiler * compiler,sljit_s32 options,sljit_s32 args,sljit_s32 scratches,sljit_s32 saveds,sljit_s32 fscratches,sljit_s32 fsaveds,sljit_s32 local_size)449 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_set_context(struct sljit_compiler *compiler,
450 sljit_s32 options, sljit_s32 args, sljit_s32 scratches, sljit_s32 saveds,
451 sljit_s32 fscratches, sljit_s32 fsaveds, sljit_s32 local_size)
452 {
453 CHECK_ERROR();
454 CHECK(check_sljit_set_context(compiler, options, args, scratches, saveds, fscratches, fsaveds, local_size));
455 set_set_context(compiler, options, args, scratches, saveds, fscratches, fsaveds, local_size);
456
457 compiler->local_size = (local_size + SLJIT_LOCALS_OFFSET + 7) & ~0x7;
458 return SLJIT_SUCCESS;
459 }
460
sljit_emit_return(struct sljit_compiler * compiler,sljit_s32 op,sljit_s32 src,sljit_sw srcw)461 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_return(struct sljit_compiler *compiler, sljit_s32 op, sljit_s32 src, sljit_sw srcw)
462 {
463 CHECK_ERROR();
464 CHECK(check_sljit_emit_return(compiler, op, src, srcw));
465
466 if (op != SLJIT_MOV || !FAST_IS_REG(src)) {
467 FAIL_IF(emit_mov_before_return(compiler, op, src, srcw));
468 src = SLJIT_R0;
469 }
470
471 FAIL_IF(push_inst(compiler, JMPL | D(0) | S1A(31) | IMM(8), UNMOVABLE_INS));
472 return push_inst(compiler, RESTORE | D(SLJIT_R0) | S1(src) | S2(0), UNMOVABLE_INS);
473 }
474
475 /* --------------------------------------------------------------------- */
476 /* Operators */
477 /* --------------------------------------------------------------------- */
478
479 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32)
480 #define ARCH_32_64(a, b) a
481 #else
482 #define ARCH_32_64(a, b) b
483 #endif
484
485 static const sljit_ins data_transfer_insts[16 + 4] = {
486 /* u w s */ ARCH_32_64(OPC1(3) | OPC3(0x04) /* stw */, OPC1(3) | OPC3(0x0e) /* stx */),
487 /* u w l */ ARCH_32_64(OPC1(3) | OPC3(0x00) /* lduw */, OPC1(3) | OPC3(0x0b) /* ldx */),
488 /* u b s */ OPC1(3) | OPC3(0x05) /* stb */,
489 /* u b l */ OPC1(3) | OPC3(0x01) /* ldub */,
490 /* u h s */ OPC1(3) | OPC3(0x06) /* sth */,
491 /* u h l */ OPC1(3) | OPC3(0x02) /* lduh */,
492 /* u i s */ OPC1(3) | OPC3(0x04) /* stw */,
493 /* u i l */ OPC1(3) | OPC3(0x00) /* lduw */,
494
495 /* s w s */ ARCH_32_64(OPC1(3) | OPC3(0x04) /* stw */, OPC1(3) | OPC3(0x0e) /* stx */),
496 /* s w l */ ARCH_32_64(OPC1(3) | OPC3(0x00) /* lduw */, OPC1(3) | OPC3(0x0b) /* ldx */),
497 /* s b s */ OPC1(3) | OPC3(0x05) /* stb */,
498 /* s b l */ OPC1(3) | OPC3(0x09) /* ldsb */,
499 /* s h s */ OPC1(3) | OPC3(0x06) /* sth */,
500 /* s h l */ OPC1(3) | OPC3(0x0a) /* ldsh */,
501 /* s i s */ OPC1(3) | OPC3(0x04) /* stw */,
502 /* s i l */ ARCH_32_64(OPC1(3) | OPC3(0x00) /* lduw */, OPC1(3) | OPC3(0x08) /* ldsw */),
503
504 /* d s */ OPC1(3) | OPC3(0x27),
505 /* d l */ OPC1(3) | OPC3(0x23),
506 /* s s */ OPC1(3) | OPC3(0x24),
507 /* s l */ OPC1(3) | OPC3(0x20),
508 };
509
510 #undef ARCH_32_64
511
512 /* Can perform an operation using at most 1 instruction. */
getput_arg_fast(struct sljit_compiler * compiler,sljit_s32 flags,sljit_s32 reg,sljit_s32 arg,sljit_sw argw)513 static sljit_s32 getput_arg_fast(struct sljit_compiler *compiler, sljit_s32 flags, sljit_s32 reg, sljit_s32 arg, sljit_sw argw)
514 {
515 SLJIT_ASSERT(arg & SLJIT_MEM);
516
517 if (!(flags & WRITE_BACK) || !(arg & REG_MASK)) {
518 if ((!(arg & OFFS_REG_MASK) && argw <= SIMM_MAX && argw >= SIMM_MIN)
519 || ((arg & OFFS_REG_MASK) && (argw & 0x3) == 0)) {
520 /* Works for both absoulte and relative addresses (immediate case). */
521 if (SLJIT_UNLIKELY(flags & ARG_TEST))
522 return 1;
523 FAIL_IF(push_inst(compiler, data_transfer_insts[flags & MEM_MASK]
524 | ((flags & MEM_MASK) <= GPR_REG ? D(reg) : DA(reg))
525 | S1(arg & REG_MASK) | ((arg & OFFS_REG_MASK) ? S2(OFFS_REG(arg)) : IMM(argw)),
526 ((flags & MEM_MASK) <= GPR_REG && (flags & LOAD_DATA)) ? DR(reg) : MOVABLE_INS));
527 return -1;
528 }
529 }
530 return 0;
531 }
532
533 /* See getput_arg below.
534 Note: can_cache is called only for binary operators. Those
535 operators always uses word arguments without write back. */
can_cache(sljit_s32 arg,sljit_sw argw,sljit_s32 next_arg,sljit_sw next_argw)536 static sljit_s32 can_cache(sljit_s32 arg, sljit_sw argw, sljit_s32 next_arg, sljit_sw next_argw)
537 {
538 SLJIT_ASSERT((arg & SLJIT_MEM) && (next_arg & SLJIT_MEM));
539
540 /* Simple operation except for updates. */
541 if (arg & OFFS_REG_MASK) {
542 argw &= 0x3;
543 SLJIT_ASSERT(argw);
544 next_argw &= 0x3;
545 if ((arg & OFFS_REG_MASK) == (next_arg & OFFS_REG_MASK) && argw == next_argw)
546 return 1;
547 return 0;
548 }
549
550 if (((next_argw - argw) <= SIMM_MAX && (next_argw - argw) >= SIMM_MIN))
551 return 1;
552 return 0;
553 }
554
555 /* Emit the necessary instructions. See can_cache above. */
getput_arg(struct sljit_compiler * compiler,sljit_s32 flags,sljit_s32 reg,sljit_s32 arg,sljit_sw argw,sljit_s32 next_arg,sljit_sw next_argw)556 static sljit_s32 getput_arg(struct sljit_compiler *compiler, sljit_s32 flags, sljit_s32 reg, sljit_s32 arg, sljit_sw argw, sljit_s32 next_arg, sljit_sw next_argw)
557 {
558 sljit_s32 base, arg2, delay_slot;
559 sljit_ins dest;
560
561 SLJIT_ASSERT(arg & SLJIT_MEM);
562 if (!(next_arg & SLJIT_MEM)) {
563 next_arg = 0;
564 next_argw = 0;
565 }
566
567 base = arg & REG_MASK;
568 if (SLJIT_UNLIKELY(arg & OFFS_REG_MASK)) {
569 argw &= 0x3;
570 SLJIT_ASSERT(argw != 0);
571
572 /* Using the cache. */
573 if (((SLJIT_MEM | (arg & OFFS_REG_MASK)) == compiler->cache_arg) && (argw == compiler->cache_argw))
574 arg2 = TMP_REG3;
575 else {
576 if ((arg & OFFS_REG_MASK) == (next_arg & OFFS_REG_MASK) && argw == (next_argw & 0x3)) {
577 compiler->cache_arg = SLJIT_MEM | (arg & OFFS_REG_MASK);
578 compiler->cache_argw = argw;
579 arg2 = TMP_REG3;
580 }
581 else if ((flags & LOAD_DATA) && ((flags & MEM_MASK) <= GPR_REG) && reg != base && reg != OFFS_REG(arg))
582 arg2 = reg;
583 else /* It must be a mov operation, so tmp1 must be free to use. */
584 arg2 = TMP_REG1;
585 FAIL_IF(push_inst(compiler, SLL_W | D(arg2) | S1(OFFS_REG(arg)) | IMM_ARG | argw, DR(arg2)));
586 }
587 }
588 else {
589 /* Using the cache. */
590 if ((compiler->cache_arg == SLJIT_MEM) && (argw - compiler->cache_argw) <= SIMM_MAX && (argw - compiler->cache_argw) >= SIMM_MIN) {
591 if (argw != compiler->cache_argw) {
592 FAIL_IF(push_inst(compiler, ADD | D(TMP_REG3) | S1(TMP_REG3) | IMM(argw - compiler->cache_argw), DR(TMP_REG3)));
593 compiler->cache_argw = argw;
594 }
595 arg2 = TMP_REG3;
596 } else {
597 if ((next_argw - argw) <= SIMM_MAX && (next_argw - argw) >= SIMM_MIN) {
598 compiler->cache_arg = SLJIT_MEM;
599 compiler->cache_argw = argw;
600 arg2 = TMP_REG3;
601 }
602 else if ((flags & LOAD_DATA) && ((flags & MEM_MASK) <= GPR_REG) && reg != base)
603 arg2 = reg;
604 else /* It must be a mov operation, so tmp1 must be free to use. */
605 arg2 = TMP_REG1;
606 FAIL_IF(load_immediate(compiler, arg2, argw));
607 }
608 }
609
610 dest = ((flags & MEM_MASK) <= GPR_REG ? D(reg) : DA(reg));
611 delay_slot = ((flags & MEM_MASK) <= GPR_REG && (flags & LOAD_DATA)) ? DR(reg) : MOVABLE_INS;
612 if (!base)
613 return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | dest | S1(arg2) | IMM(0), delay_slot);
614 if (!(flags & WRITE_BACK))
615 return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | dest | S1(base) | S2(arg2), delay_slot);
616 FAIL_IF(push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | dest | S1(base) | S2(arg2), delay_slot));
617 return push_inst(compiler, ADD | D(base) | S1(base) | S2(arg2), DR(base));
618 }
619
emit_op_mem(struct sljit_compiler * compiler,sljit_s32 flags,sljit_s32 reg,sljit_s32 arg,sljit_sw argw)620 static SLJIT_INLINE sljit_s32 emit_op_mem(struct sljit_compiler *compiler, sljit_s32 flags, sljit_s32 reg, sljit_s32 arg, sljit_sw argw)
621 {
622 if (getput_arg_fast(compiler, flags, reg, arg, argw))
623 return compiler->error;
624 compiler->cache_arg = 0;
625 compiler->cache_argw = 0;
626 return getput_arg(compiler, flags, reg, arg, argw, 0, 0);
627 }
628
emit_op_mem2(struct sljit_compiler * compiler,sljit_s32 flags,sljit_s32 reg,sljit_s32 arg1,sljit_sw arg1w,sljit_s32 arg2,sljit_sw arg2w)629 static SLJIT_INLINE sljit_s32 emit_op_mem2(struct sljit_compiler *compiler, sljit_s32 flags, sljit_s32 reg, sljit_s32 arg1, sljit_sw arg1w, sljit_s32 arg2, sljit_sw arg2w)
630 {
631 if (getput_arg_fast(compiler, flags, reg, arg1, arg1w))
632 return compiler->error;
633 return getput_arg(compiler, flags, reg, arg1, arg1w, arg2, arg2w);
634 }
635
emit_op(struct sljit_compiler * compiler,sljit_s32 op,sljit_s32 flags,sljit_s32 dst,sljit_sw dstw,sljit_s32 src1,sljit_sw src1w,sljit_s32 src2,sljit_sw src2w)636 static sljit_s32 emit_op(struct sljit_compiler *compiler, sljit_s32 op, sljit_s32 flags,
637 sljit_s32 dst, sljit_sw dstw,
638 sljit_s32 src1, sljit_sw src1w,
639 sljit_s32 src2, sljit_sw src2w)
640 {
641 /* arg1 goes to TMP_REG1 or src reg
642 arg2 goes to TMP_REG2, imm or src reg
643 TMP_REG3 can be used for caching
644 result goes to TMP_REG2, so put result can use TMP_REG1 and TMP_REG3. */
645 sljit_s32 dst_r = TMP_REG2;
646 sljit_s32 src1_r;
647 sljit_sw src2_r = 0;
648 sljit_s32 sugg_src2_r = TMP_REG2;
649
650 if (!(flags & ALT_KEEP_CACHE)) {
651 compiler->cache_arg = 0;
652 compiler->cache_argw = 0;
653 }
654
655 if (SLJIT_UNLIKELY(dst == SLJIT_UNUSED)) {
656 if (op >= SLJIT_MOV && op <= SLJIT_MOVU_S32 && !(src2 & SLJIT_MEM))
657 return SLJIT_SUCCESS;
658 }
659 else if (FAST_IS_REG(dst)) {
660 dst_r = dst;
661 flags |= REG_DEST;
662 if (op >= SLJIT_MOV && op <= SLJIT_MOVU_S32)
663 sugg_src2_r = dst_r;
664 }
665 else if ((dst & SLJIT_MEM) && !getput_arg_fast(compiler, flags | ARG_TEST, TMP_REG1, dst, dstw))
666 flags |= SLOW_DEST;
667
668 if (flags & IMM_OP) {
669 if ((src2 & SLJIT_IMM) && src2w) {
670 if (src2w <= SIMM_MAX && src2w >= SIMM_MIN) {
671 flags |= SRC2_IMM;
672 src2_r = src2w;
673 }
674 }
675 if (!(flags & SRC2_IMM) && (flags & CUMULATIVE_OP) && (src1 & SLJIT_IMM) && src1w) {
676 if (src1w <= SIMM_MAX && src1w >= SIMM_MIN) {
677 flags |= SRC2_IMM;
678 src2_r = src1w;
679
680 /* And swap arguments. */
681 src1 = src2;
682 src1w = src2w;
683 src2 = SLJIT_IMM;
684 /* src2w = src2_r unneeded. */
685 }
686 }
687 }
688
689 /* Source 1. */
690 if (FAST_IS_REG(src1))
691 src1_r = src1;
692 else if (src1 & SLJIT_IMM) {
693 if (src1w) {
694 FAIL_IF(load_immediate(compiler, TMP_REG1, src1w));
695 src1_r = TMP_REG1;
696 }
697 else
698 src1_r = 0;
699 }
700 else {
701 if (getput_arg_fast(compiler, flags | LOAD_DATA, TMP_REG1, src1, src1w))
702 FAIL_IF(compiler->error);
703 else
704 flags |= SLOW_SRC1;
705 src1_r = TMP_REG1;
706 }
707
708 /* Source 2. */
709 if (FAST_IS_REG(src2)) {
710 src2_r = src2;
711 flags |= REG2_SOURCE;
712 if (!(flags & REG_DEST) && op >= SLJIT_MOV && op <= SLJIT_MOVU_S32)
713 dst_r = src2_r;
714 }
715 else if (src2 & SLJIT_IMM) {
716 if (!(flags & SRC2_IMM)) {
717 if (src2w) {
718 FAIL_IF(load_immediate(compiler, sugg_src2_r, src2w));
719 src2_r = sugg_src2_r;
720 }
721 else {
722 src2_r = 0;
723 if ((op >= SLJIT_MOV && op <= SLJIT_MOVU_S32) && (dst & SLJIT_MEM))
724 dst_r = 0;
725 }
726 }
727 }
728 else {
729 if (getput_arg_fast(compiler, flags | LOAD_DATA, sugg_src2_r, src2, src2w))
730 FAIL_IF(compiler->error);
731 else
732 flags |= SLOW_SRC2;
733 src2_r = sugg_src2_r;
734 }
735
736 if ((flags & (SLOW_SRC1 | SLOW_SRC2)) == (SLOW_SRC1 | SLOW_SRC2)) {
737 SLJIT_ASSERT(src2_r == TMP_REG2);
738 if (!can_cache(src1, src1w, src2, src2w) && can_cache(src1, src1w, dst, dstw)) {
739 FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, TMP_REG2, src2, src2w, src1, src1w));
740 FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, TMP_REG1, src1, src1w, dst, dstw));
741 }
742 else {
743 FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, TMP_REG1, src1, src1w, src2, src2w));
744 FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, TMP_REG2, src2, src2w, dst, dstw));
745 }
746 }
747 else if (flags & SLOW_SRC1)
748 FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, TMP_REG1, src1, src1w, dst, dstw));
749 else if (flags & SLOW_SRC2)
750 FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, sugg_src2_r, src2, src2w, dst, dstw));
751
752 FAIL_IF(emit_single_op(compiler, op, flags, dst_r, src1_r, src2_r));
753
754 if (dst & SLJIT_MEM) {
755 if (!(flags & SLOW_DEST)) {
756 getput_arg_fast(compiler, flags, dst_r, dst, dstw);
757 return compiler->error;
758 }
759 return getput_arg(compiler, flags, dst_r, dst, dstw, 0, 0);
760 }
761
762 return SLJIT_SUCCESS;
763 }
764
sljit_emit_op0(struct sljit_compiler * compiler,sljit_s32 op)765 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_op0(struct sljit_compiler *compiler, sljit_s32 op)
766 {
767 CHECK_ERROR();
768 CHECK(check_sljit_emit_op0(compiler, op));
769
770 op = GET_OPCODE(op);
771 switch (op) {
772 case SLJIT_BREAKPOINT:
773 return push_inst(compiler, TA, UNMOVABLE_INS);
774 case SLJIT_NOP:
775 return push_inst(compiler, NOP, UNMOVABLE_INS);
776 case SLJIT_LMUL_UW:
777 case SLJIT_LMUL_SW:
778 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32)
779 FAIL_IF(push_inst(compiler, (op == SLJIT_LMUL_UW ? UMUL : SMUL) | D(SLJIT_R0) | S1(SLJIT_R0) | S2(SLJIT_R1), DR(SLJIT_R0)));
780 return push_inst(compiler, RDY | D(SLJIT_R1), DR(SLJIT_R1));
781 #else
782 #error "Implementation required"
783 #endif
784 case SLJIT_DIVMOD_UW:
785 case SLJIT_DIVMOD_SW:
786 case SLJIT_DIV_UW:
787 case SLJIT_DIV_SW:
788 SLJIT_COMPILE_ASSERT((SLJIT_DIVMOD_UW & 0x2) == 0 && SLJIT_DIV_UW - 0x2 == SLJIT_DIVMOD_UW, bad_div_opcode_assignments);
789 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32)
790 if ((op | 0x2) == SLJIT_DIV_UW)
791 FAIL_IF(push_inst(compiler, WRY | S1(0), MOVABLE_INS));
792 else {
793 FAIL_IF(push_inst(compiler, SRA | D(TMP_REG1) | S1(SLJIT_R0) | IMM(31), DR(TMP_REG1)));
794 FAIL_IF(push_inst(compiler, WRY | S1(TMP_REG1), MOVABLE_INS));
795 }
796 if (op <= SLJIT_DIVMOD_SW)
797 FAIL_IF(push_inst(compiler, OR | D(TMP_REG2) | S1(0) | S2(SLJIT_R0), DR(TMP_REG2)));
798 FAIL_IF(push_inst(compiler, ((op | 0x2) == SLJIT_DIV_UW ? UDIV : SDIV) | D(SLJIT_R0) | S1(SLJIT_R0) | S2(SLJIT_R1), DR(SLJIT_R0)));
799 if (op >= SLJIT_DIV_UW)
800 return SLJIT_SUCCESS;
801 FAIL_IF(push_inst(compiler, SMUL | D(SLJIT_R1) | S1(SLJIT_R0) | S2(SLJIT_R1), DR(SLJIT_R1)));
802 return push_inst(compiler, SUB | D(SLJIT_R1) | S1(TMP_REG2) | S2(SLJIT_R1), DR(SLJIT_R1));
803 #else
804 #error "Implementation required"
805 #endif
806 }
807
808 return SLJIT_SUCCESS;
809 }
810
sljit_emit_op1(struct sljit_compiler * compiler,sljit_s32 op,sljit_s32 dst,sljit_sw dstw,sljit_s32 src,sljit_sw srcw)811 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_op1(struct sljit_compiler *compiler, sljit_s32 op,
812 sljit_s32 dst, sljit_sw dstw,
813 sljit_s32 src, sljit_sw srcw)
814 {
815 sljit_s32 flags = GET_FLAGS(op) ? SET_FLAGS : 0;
816
817 CHECK_ERROR();
818 CHECK(check_sljit_emit_op1(compiler, op, dst, dstw, src, srcw));
819 ADJUST_LOCAL_OFFSET(dst, dstw);
820 ADJUST_LOCAL_OFFSET(src, srcw);
821
822 op = GET_OPCODE(op);
823 switch (op) {
824 case SLJIT_MOV:
825 case SLJIT_MOV_P:
826 return emit_op(compiler, SLJIT_MOV, flags | WORD_DATA, dst, dstw, TMP_REG1, 0, src, srcw);
827
828 case SLJIT_MOV_U32:
829 return emit_op(compiler, SLJIT_MOV_U32, flags | INT_DATA, dst, dstw, TMP_REG1, 0, src, srcw);
830
831 case SLJIT_MOV_S32:
832 return emit_op(compiler, SLJIT_MOV_S32, flags | INT_DATA | SIGNED_DATA, dst, dstw, TMP_REG1, 0, src, srcw);
833
834 case SLJIT_MOV_U8:
835 return emit_op(compiler, SLJIT_MOV_U8, flags | BYTE_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_u8)srcw : srcw);
836
837 case SLJIT_MOV_S8:
838 return emit_op(compiler, SLJIT_MOV_S8, flags | BYTE_DATA | SIGNED_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_s8)srcw : srcw);
839
840 case SLJIT_MOV_U16:
841 return emit_op(compiler, SLJIT_MOV_U16, flags | HALF_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_u16)srcw : srcw);
842
843 case SLJIT_MOV_S16:
844 return emit_op(compiler, SLJIT_MOV_S16, flags | HALF_DATA | SIGNED_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_s16)srcw : srcw);
845
846 case SLJIT_MOVU:
847 case SLJIT_MOVU_P:
848 return emit_op(compiler, SLJIT_MOV, flags | WORD_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, srcw);
849
850 case SLJIT_MOVU_U32:
851 return emit_op(compiler, SLJIT_MOV_U32, flags | INT_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, srcw);
852
853 case SLJIT_MOVU_S32:
854 return emit_op(compiler, SLJIT_MOV_S32, flags | INT_DATA | SIGNED_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, srcw);
855
856 case SLJIT_MOVU_U8:
857 return emit_op(compiler, SLJIT_MOV_U8, flags | BYTE_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_u8)srcw : srcw);
858
859 case SLJIT_MOVU_S8:
860 return emit_op(compiler, SLJIT_MOV_S8, flags | BYTE_DATA | SIGNED_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_s8)srcw : srcw);
861
862 case SLJIT_MOVU_U16:
863 return emit_op(compiler, SLJIT_MOV_U16, flags | HALF_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_u16)srcw : srcw);
864
865 case SLJIT_MOVU_S16:
866 return emit_op(compiler, SLJIT_MOV_S16, flags | HALF_DATA | SIGNED_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_s16)srcw : srcw);
867
868 case SLJIT_NOT:
869 case SLJIT_CLZ:
870 return emit_op(compiler, op, flags, dst, dstw, TMP_REG1, 0, src, srcw);
871
872 case SLJIT_NEG:
873 return emit_op(compiler, SLJIT_SUB, flags | IMM_OP, dst, dstw, SLJIT_IMM, 0, src, srcw);
874 }
875
876 return SLJIT_SUCCESS;
877 }
878
sljit_emit_op2(struct sljit_compiler * compiler,sljit_s32 op,sljit_s32 dst,sljit_sw dstw,sljit_s32 src1,sljit_sw src1w,sljit_s32 src2,sljit_sw src2w)879 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_op2(struct sljit_compiler *compiler, sljit_s32 op,
880 sljit_s32 dst, sljit_sw dstw,
881 sljit_s32 src1, sljit_sw src1w,
882 sljit_s32 src2, sljit_sw src2w)
883 {
884 sljit_s32 flags = GET_FLAGS(op) ? SET_FLAGS : 0;
885
886 CHECK_ERROR();
887 CHECK(check_sljit_emit_op2(compiler, op, dst, dstw, src1, src1w, src2, src2w));
888 ADJUST_LOCAL_OFFSET(dst, dstw);
889 ADJUST_LOCAL_OFFSET(src1, src1w);
890 ADJUST_LOCAL_OFFSET(src2, src2w);
891
892 op = GET_OPCODE(op);
893 switch (op) {
894 case SLJIT_ADD:
895 case SLJIT_ADDC:
896 case SLJIT_MUL:
897 case SLJIT_AND:
898 case SLJIT_OR:
899 case SLJIT_XOR:
900 return emit_op(compiler, op, flags | CUMULATIVE_OP | IMM_OP, dst, dstw, src1, src1w, src2, src2w);
901
902 case SLJIT_SUB:
903 case SLJIT_SUBC:
904 return emit_op(compiler, op, flags | IMM_OP, dst, dstw, src1, src1w, src2, src2w);
905
906 case SLJIT_SHL:
907 case SLJIT_LSHR:
908 case SLJIT_ASHR:
909 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32)
910 if (src2 & SLJIT_IMM)
911 src2w &= 0x1f;
912 #else
913 SLJIT_ASSERT_STOP();
914 #endif
915 return emit_op(compiler, op, flags | IMM_OP, dst, dstw, src1, src1w, src2, src2w);
916 }
917
918 return SLJIT_SUCCESS;
919 }
920
sljit_get_register_index(sljit_s32 reg)921 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_get_register_index(sljit_s32 reg)
922 {
923 CHECK_REG_INDEX(check_sljit_get_register_index(reg));
924 return reg_map[reg];
925 }
926
sljit_get_float_register_index(sljit_s32 reg)927 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_get_float_register_index(sljit_s32 reg)
928 {
929 CHECK_REG_INDEX(check_sljit_get_float_register_index(reg));
930 return reg << 1;
931 }
932
sljit_emit_op_custom(struct sljit_compiler * compiler,void * instruction,sljit_s32 size)933 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_op_custom(struct sljit_compiler *compiler,
934 void *instruction, sljit_s32 size)
935 {
936 CHECK_ERROR();
937 CHECK(check_sljit_emit_op_custom(compiler, instruction, size));
938
939 return push_inst(compiler, *(sljit_ins*)instruction, UNMOVABLE_INS);
940 }
941
942 /* --------------------------------------------------------------------- */
943 /* Floating point operators */
944 /* --------------------------------------------------------------------- */
945
sljit_is_fpu_available(void)946 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_is_fpu_available(void)
947 {
948 #ifdef SLJIT_IS_FPU_AVAILABLE
949 return SLJIT_IS_FPU_AVAILABLE;
950 #else
951 /* Available by default. */
952 return 1;
953 #endif
954 }
955
956 #define FLOAT_DATA(op) (DOUBLE_DATA | ((op & SLJIT_F32_OP) >> 7))
957 #define SELECT_FOP(op, single, double) ((op & SLJIT_F32_OP) ? single : double)
958 #define FLOAT_TMP_MEM_OFFSET (22 * sizeof(sljit_sw))
959
sljit_emit_fop1_conv_sw_from_f64(struct sljit_compiler * compiler,sljit_s32 op,sljit_s32 dst,sljit_sw dstw,sljit_s32 src,sljit_sw srcw)960 static SLJIT_INLINE sljit_s32 sljit_emit_fop1_conv_sw_from_f64(struct sljit_compiler *compiler, sljit_s32 op,
961 sljit_s32 dst, sljit_sw dstw,
962 sljit_s32 src, sljit_sw srcw)
963 {
964 if (src & SLJIT_MEM) {
965 FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG1, src, srcw, dst, dstw));
966 src = TMP_FREG1;
967 }
968 else
969 src <<= 1;
970
971 FAIL_IF(push_inst(compiler, SELECT_FOP(op, FSTOI, FDTOI) | DA(TMP_FREG1) | S2A(src), MOVABLE_INS));
972
973 if (dst == SLJIT_UNUSED)
974 return SLJIT_SUCCESS;
975
976 if (FAST_IS_REG(dst)) {
977 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));
978 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);
979 }
980
981 /* Store the integer value from a VFP register. */
982 return emit_op_mem2(compiler, SINGLE_DATA, TMP_FREG1, dst, dstw, 0, 0);
983 }
984
sljit_emit_fop1_conv_f64_from_sw(struct sljit_compiler * compiler,sljit_s32 op,sljit_s32 dst,sljit_sw dstw,sljit_s32 src,sljit_sw srcw)985 static SLJIT_INLINE sljit_s32 sljit_emit_fop1_conv_f64_from_sw(struct sljit_compiler *compiler, sljit_s32 op,
986 sljit_s32 dst, sljit_sw dstw,
987 sljit_s32 src, sljit_sw srcw)
988 {
989 sljit_s32 dst_r = FAST_IS_REG(dst) ? (dst << 1) : TMP_FREG1;
990
991 if (src & SLJIT_IMM) {
992 #if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64)
993 if (GET_OPCODE(op) == SLJIT_CONV_F64_FROM_S32)
994 srcw = (sljit_s32)srcw;
995 #endif
996 FAIL_IF(load_immediate(compiler, TMP_REG1, srcw));
997 src = TMP_REG1;
998 srcw = 0;
999 }
1000
1001 if (FAST_IS_REG(src)) {
1002 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));
1003 src = SLJIT_MEM1(SLJIT_SP);
1004 srcw = FLOAT_TMP_MEM_OFFSET;
1005 }
1006
1007 FAIL_IF(emit_op_mem2(compiler, SINGLE_DATA | LOAD_DATA, TMP_FREG1, src, srcw, dst, dstw));
1008 FAIL_IF(push_inst(compiler, SELECT_FOP(op, FITOS, FITOD) | DA(dst_r) | S2A(TMP_FREG1), MOVABLE_INS));
1009
1010 if (dst & SLJIT_MEM)
1011 return emit_op_mem2(compiler, FLOAT_DATA(op), TMP_FREG1, dst, dstw, 0, 0);
1012 return SLJIT_SUCCESS;
1013 }
1014
sljit_emit_fop1_cmp(struct sljit_compiler * compiler,sljit_s32 op,sljit_s32 src1,sljit_sw src1w,sljit_s32 src2,sljit_sw src2w)1015 static SLJIT_INLINE sljit_s32 sljit_emit_fop1_cmp(struct sljit_compiler *compiler, sljit_s32 op,
1016 sljit_s32 src1, sljit_sw src1w,
1017 sljit_s32 src2, sljit_sw src2w)
1018 {
1019 if (src1 & SLJIT_MEM) {
1020 FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG1, src1, src1w, src2, src2w));
1021 src1 = TMP_FREG1;
1022 }
1023 else
1024 src1 <<= 1;
1025
1026 if (src2 & SLJIT_MEM) {
1027 FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG2, src2, src2w, 0, 0));
1028 src2 = TMP_FREG2;
1029 }
1030 else
1031 src2 <<= 1;
1032
1033 return push_inst(compiler, SELECT_FOP(op, FCMPS, FCMPD) | S1A(src1) | S2A(src2), FCC_IS_SET | MOVABLE_INS);
1034 }
1035
sljit_emit_fop1(struct sljit_compiler * compiler,sljit_s32 op,sljit_s32 dst,sljit_sw dstw,sljit_s32 src,sljit_sw srcw)1036 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_fop1(struct sljit_compiler *compiler, sljit_s32 op,
1037 sljit_s32 dst, sljit_sw dstw,
1038 sljit_s32 src, sljit_sw srcw)
1039 {
1040 sljit_s32 dst_r;
1041
1042 CHECK_ERROR();
1043 compiler->cache_arg = 0;
1044 compiler->cache_argw = 0;
1045
1046 SLJIT_COMPILE_ASSERT((SLJIT_F32_OP == 0x100) && !(DOUBLE_DATA & 0x2), float_transfer_bit_error);
1047 SELECT_FOP1_OPERATION_WITH_CHECKS(compiler, op, dst, dstw, src, srcw);
1048
1049 if (GET_OPCODE(op) == SLJIT_CONV_F64_FROM_F32)
1050 op ^= SLJIT_F32_OP;
1051
1052 dst_r = FAST_IS_REG(dst) ? (dst << 1) : TMP_FREG1;
1053
1054 if (src & SLJIT_MEM) {
1055 FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op) | LOAD_DATA, dst_r, src, srcw, dst, dstw));
1056 src = dst_r;
1057 }
1058 else
1059 src <<= 1;
1060
1061 switch (GET_OPCODE(op)) {
1062 case SLJIT_MOV_F64:
1063 if (src != dst_r) {
1064 if (dst_r != TMP_FREG1) {
1065 FAIL_IF(push_inst(compiler, FMOVS | DA(dst_r) | S2A(src), MOVABLE_INS));
1066 if (!(op & SLJIT_F32_OP))
1067 FAIL_IF(push_inst(compiler, FMOVS | DA(dst_r | 1) | S2A(src | 1), MOVABLE_INS));
1068 }
1069 else
1070 dst_r = src;
1071 }
1072 break;
1073 case SLJIT_NEG_F64:
1074 FAIL_IF(push_inst(compiler, FNEGS | DA(dst_r) | S2A(src), MOVABLE_INS));
1075 if (dst_r != src && !(op & SLJIT_F32_OP))
1076 FAIL_IF(push_inst(compiler, FMOVS | DA(dst_r | 1) | S2A(src | 1), MOVABLE_INS));
1077 break;
1078 case SLJIT_ABS_F64:
1079 FAIL_IF(push_inst(compiler, FABSS | DA(dst_r) | S2A(src), MOVABLE_INS));
1080 if (dst_r != src && !(op & SLJIT_F32_OP))
1081 FAIL_IF(push_inst(compiler, FMOVS | DA(dst_r | 1) | S2A(src | 1), MOVABLE_INS));
1082 break;
1083 case SLJIT_CONV_F64_FROM_F32:
1084 FAIL_IF(push_inst(compiler, SELECT_FOP(op, FSTOD, FDTOS) | DA(dst_r) | S2A(src), MOVABLE_INS));
1085 op ^= SLJIT_F32_OP;
1086 break;
1087 }
1088
1089 if (dst & SLJIT_MEM)
1090 FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op), dst_r, dst, dstw, 0, 0));
1091 return SLJIT_SUCCESS;
1092 }
1093
sljit_emit_fop2(struct sljit_compiler * compiler,sljit_s32 op,sljit_s32 dst,sljit_sw dstw,sljit_s32 src1,sljit_sw src1w,sljit_s32 src2,sljit_sw src2w)1094 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_fop2(struct sljit_compiler *compiler, sljit_s32 op,
1095 sljit_s32 dst, sljit_sw dstw,
1096 sljit_s32 src1, sljit_sw src1w,
1097 sljit_s32 src2, sljit_sw src2w)
1098 {
1099 sljit_s32 dst_r, flags = 0;
1100
1101 CHECK_ERROR();
1102 CHECK(check_sljit_emit_fop2(compiler, op, dst, dstw, src1, src1w, src2, src2w));
1103 ADJUST_LOCAL_OFFSET(dst, dstw);
1104 ADJUST_LOCAL_OFFSET(src1, src1w);
1105 ADJUST_LOCAL_OFFSET(src2, src2w);
1106
1107 compiler->cache_arg = 0;
1108 compiler->cache_argw = 0;
1109
1110 dst_r = FAST_IS_REG(dst) ? (dst << 1) : TMP_FREG2;
1111
1112 if (src1 & SLJIT_MEM) {
1113 if (getput_arg_fast(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG1, src1, src1w)) {
1114 FAIL_IF(compiler->error);
1115 src1 = TMP_FREG1;
1116 } else
1117 flags |= SLOW_SRC1;
1118 }
1119 else
1120 src1 <<= 1;
1121
1122 if (src2 & SLJIT_MEM) {
1123 if (getput_arg_fast(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG2, src2, src2w)) {
1124 FAIL_IF(compiler->error);
1125 src2 = TMP_FREG2;
1126 } else
1127 flags |= SLOW_SRC2;
1128 }
1129 else
1130 src2 <<= 1;
1131
1132 if ((flags & (SLOW_SRC1 | SLOW_SRC2)) == (SLOW_SRC1 | SLOW_SRC2)) {
1133 if (!can_cache(src1, src1w, src2, src2w) && can_cache(src1, src1w, dst, dstw)) {
1134 FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG2, src2, src2w, src1, src1w));
1135 FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG1, src1, src1w, dst, dstw));
1136 }
1137 else {
1138 FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG1, src1, src1w, src2, src2w));
1139 FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG2, src2, src2w, dst, dstw));
1140 }
1141 }
1142 else if (flags & SLOW_SRC1)
1143 FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG1, src1, src1w, dst, dstw));
1144 else if (flags & SLOW_SRC2)
1145 FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG2, src2, src2w, dst, dstw));
1146
1147 if (flags & SLOW_SRC1)
1148 src1 = TMP_FREG1;
1149 if (flags & SLOW_SRC2)
1150 src2 = TMP_FREG2;
1151
1152 switch (GET_OPCODE(op)) {
1153 case SLJIT_ADD_F64:
1154 FAIL_IF(push_inst(compiler, SELECT_FOP(op, FADDS, FADDD) | DA(dst_r) | S1A(src1) | S2A(src2), MOVABLE_INS));
1155 break;
1156
1157 case SLJIT_SUB_F64:
1158 FAIL_IF(push_inst(compiler, SELECT_FOP(op, FSUBS, FSUBD) | DA(dst_r) | S1A(src1) | S2A(src2), MOVABLE_INS));
1159 break;
1160
1161 case SLJIT_MUL_F64:
1162 FAIL_IF(push_inst(compiler, SELECT_FOP(op, FMULS, FMULD) | DA(dst_r) | S1A(src1) | S2A(src2), MOVABLE_INS));
1163 break;
1164
1165 case SLJIT_DIV_F64:
1166 FAIL_IF(push_inst(compiler, SELECT_FOP(op, FDIVS, FDIVD) | DA(dst_r) | S1A(src1) | S2A(src2), MOVABLE_INS));
1167 break;
1168 }
1169
1170 if (dst_r == TMP_FREG2)
1171 FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op), TMP_FREG2, dst, dstw, 0, 0));
1172
1173 return SLJIT_SUCCESS;
1174 }
1175
1176 #undef FLOAT_DATA
1177 #undef SELECT_FOP
1178
1179 /* --------------------------------------------------------------------- */
1180 /* Other instructions */
1181 /* --------------------------------------------------------------------- */
1182
sljit_emit_fast_enter(struct sljit_compiler * compiler,sljit_s32 dst,sljit_sw dstw)1183 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_fast_enter(struct sljit_compiler *compiler, sljit_s32 dst, sljit_sw dstw)
1184 {
1185 CHECK_ERROR();
1186 CHECK(check_sljit_emit_fast_enter(compiler, dst, dstw));
1187 ADJUST_LOCAL_OFFSET(dst, dstw);
1188
1189 /* For UNUSED dst. Uncommon, but possible. */
1190 if (dst == SLJIT_UNUSED)
1191 return SLJIT_SUCCESS;
1192
1193 if (FAST_IS_REG(dst))
1194 return push_inst(compiler, OR | D(dst) | S1(0) | S2(TMP_LINK), DR(dst));
1195
1196 /* Memory. */
1197 return emit_op_mem(compiler, WORD_DATA, TMP_LINK, dst, dstw);
1198 }
1199
sljit_emit_fast_return(struct sljit_compiler * compiler,sljit_s32 src,sljit_sw srcw)1200 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_fast_return(struct sljit_compiler *compiler, sljit_s32 src, sljit_sw srcw)
1201 {
1202 CHECK_ERROR();
1203 CHECK(check_sljit_emit_fast_return(compiler, src, srcw));
1204 ADJUST_LOCAL_OFFSET(src, srcw);
1205
1206 if (FAST_IS_REG(src))
1207 FAIL_IF(push_inst(compiler, OR | D(TMP_LINK) | S1(0) | S2(src), DR(TMP_LINK)));
1208 else if (src & SLJIT_MEM)
1209 FAIL_IF(emit_op_mem(compiler, WORD_DATA | LOAD_DATA, TMP_LINK, src, srcw));
1210 else if (src & SLJIT_IMM)
1211 FAIL_IF(load_immediate(compiler, TMP_LINK, srcw));
1212
1213 FAIL_IF(push_inst(compiler, JMPL | D(0) | S1(TMP_LINK) | IMM(8), UNMOVABLE_INS));
1214 return push_inst(compiler, NOP, UNMOVABLE_INS);
1215 }
1216
1217 /* --------------------------------------------------------------------- */
1218 /* Conditional instructions */
1219 /* --------------------------------------------------------------------- */
1220
sljit_emit_label(struct sljit_compiler * compiler)1221 SLJIT_API_FUNC_ATTRIBUTE struct sljit_label* sljit_emit_label(struct sljit_compiler *compiler)
1222 {
1223 struct sljit_label *label;
1224
1225 CHECK_ERROR_PTR();
1226 CHECK_PTR(check_sljit_emit_label(compiler));
1227
1228 if (compiler->last_label && compiler->last_label->size == compiler->size)
1229 return compiler->last_label;
1230
1231 label = (struct sljit_label*)ensure_abuf(compiler, sizeof(struct sljit_label));
1232 PTR_FAIL_IF(!label);
1233 set_label(label, compiler);
1234 compiler->delay_slot = UNMOVABLE_INS;
1235 return label;
1236 }
1237
get_cc(sljit_s32 type)1238 static sljit_ins get_cc(sljit_s32 type)
1239 {
1240 switch (type) {
1241 case SLJIT_EQUAL:
1242 case SLJIT_MUL_NOT_OVERFLOW:
1243 case SLJIT_NOT_EQUAL_F64: /* Unordered. */
1244 return DA(0x1);
1245
1246 case SLJIT_NOT_EQUAL:
1247 case SLJIT_MUL_OVERFLOW:
1248 case SLJIT_EQUAL_F64:
1249 return DA(0x9);
1250
1251 case SLJIT_LESS:
1252 case SLJIT_GREATER_F64: /* Unordered. */
1253 return DA(0x5);
1254
1255 case SLJIT_GREATER_EQUAL:
1256 case SLJIT_LESS_EQUAL_F64:
1257 return DA(0xd);
1258
1259 case SLJIT_GREATER:
1260 case SLJIT_GREATER_EQUAL_F64: /* Unordered. */
1261 return DA(0xc);
1262
1263 case SLJIT_LESS_EQUAL:
1264 case SLJIT_LESS_F64:
1265 return DA(0x4);
1266
1267 case SLJIT_SIG_LESS:
1268 return DA(0x3);
1269
1270 case SLJIT_SIG_GREATER_EQUAL:
1271 return DA(0xb);
1272
1273 case SLJIT_SIG_GREATER:
1274 return DA(0xa);
1275
1276 case SLJIT_SIG_LESS_EQUAL:
1277 return DA(0x2);
1278
1279 case SLJIT_OVERFLOW:
1280 case SLJIT_UNORDERED_F64:
1281 return DA(0x7);
1282
1283 case SLJIT_NOT_OVERFLOW:
1284 case SLJIT_ORDERED_F64:
1285 return DA(0xf);
1286
1287 default:
1288 SLJIT_ASSERT_STOP();
1289 return DA(0x8);
1290 }
1291 }
1292
sljit_emit_jump(struct sljit_compiler * compiler,sljit_s32 type)1293 SLJIT_API_FUNC_ATTRIBUTE struct sljit_jump* sljit_emit_jump(struct sljit_compiler *compiler, sljit_s32 type)
1294 {
1295 struct sljit_jump *jump;
1296
1297 CHECK_ERROR_PTR();
1298 CHECK_PTR(check_sljit_emit_jump(compiler, type));
1299
1300 jump = (struct sljit_jump*)ensure_abuf(compiler, sizeof(struct sljit_jump));
1301 PTR_FAIL_IF(!jump);
1302 set_jump(jump, compiler, type & SLJIT_REWRITABLE_JUMP);
1303 type &= 0xff;
1304
1305 if (type < SLJIT_EQUAL_F64) {
1306 jump->flags |= IS_COND;
1307 if (((compiler->delay_slot & DST_INS_MASK) != UNMOVABLE_INS) && !(compiler->delay_slot & ICC_IS_SET))
1308 jump->flags |= IS_MOVABLE;
1309 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32)
1310 PTR_FAIL_IF(push_inst(compiler, BICC | get_cc(type ^ 1) | 5, UNMOVABLE_INS));
1311 #else
1312 #error "Implementation required"
1313 #endif
1314 }
1315 else if (type < SLJIT_JUMP) {
1316 jump->flags |= IS_COND;
1317 if (((compiler->delay_slot & DST_INS_MASK) != UNMOVABLE_INS) && !(compiler->delay_slot & FCC_IS_SET))
1318 jump->flags |= IS_MOVABLE;
1319 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32)
1320 PTR_FAIL_IF(push_inst(compiler, FBFCC | get_cc(type ^ 1) | 5, UNMOVABLE_INS));
1321 #else
1322 #error "Implementation required"
1323 #endif
1324 } else {
1325 if ((compiler->delay_slot & DST_INS_MASK) != UNMOVABLE_INS)
1326 jump->flags |= IS_MOVABLE;
1327 if (type >= SLJIT_FAST_CALL)
1328 jump->flags |= IS_CALL;
1329 }
1330
1331 PTR_FAIL_IF(emit_const(compiler, TMP_REG2, 0));
1332 PTR_FAIL_IF(push_inst(compiler, JMPL | D(type >= SLJIT_FAST_CALL ? TMP_LINK : 0) | S1(TMP_REG2) | IMM(0), UNMOVABLE_INS));
1333 jump->addr = compiler->size;
1334 PTR_FAIL_IF(push_inst(compiler, NOP, UNMOVABLE_INS));
1335
1336 return jump;
1337 }
1338
sljit_emit_ijump(struct sljit_compiler * compiler,sljit_s32 type,sljit_s32 src,sljit_sw srcw)1339 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_ijump(struct sljit_compiler *compiler, sljit_s32 type, sljit_s32 src, sljit_sw srcw)
1340 {
1341 struct sljit_jump *jump = NULL;
1342 sljit_s32 src_r;
1343
1344 CHECK_ERROR();
1345 CHECK(check_sljit_emit_ijump(compiler, type, src, srcw));
1346 ADJUST_LOCAL_OFFSET(src, srcw);
1347
1348 if (FAST_IS_REG(src))
1349 src_r = src;
1350 else if (src & SLJIT_IMM) {
1351 jump = (struct sljit_jump*)ensure_abuf(compiler, sizeof(struct sljit_jump));
1352 FAIL_IF(!jump);
1353 set_jump(jump, compiler, JUMP_ADDR);
1354 jump->u.target = srcw;
1355 if ((compiler->delay_slot & DST_INS_MASK) != UNMOVABLE_INS)
1356 jump->flags |= IS_MOVABLE;
1357 if (type >= SLJIT_FAST_CALL)
1358 jump->flags |= IS_CALL;
1359
1360 FAIL_IF(emit_const(compiler, TMP_REG2, 0));
1361 src_r = TMP_REG2;
1362 }
1363 else {
1364 FAIL_IF(emit_op_mem(compiler, WORD_DATA | LOAD_DATA, TMP_REG2, src, srcw));
1365 src_r = TMP_REG2;
1366 }
1367
1368 FAIL_IF(push_inst(compiler, JMPL | D(type >= SLJIT_FAST_CALL ? TMP_LINK : 0) | S1(src_r) | IMM(0), UNMOVABLE_INS));
1369 if (jump)
1370 jump->addr = compiler->size;
1371 return push_inst(compiler, NOP, UNMOVABLE_INS);
1372 }
1373
sljit_emit_op_flags(struct sljit_compiler * compiler,sljit_s32 op,sljit_s32 dst,sljit_sw dstw,sljit_s32 src,sljit_sw srcw,sljit_s32 type)1374 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_op_flags(struct sljit_compiler *compiler, sljit_s32 op,
1375 sljit_s32 dst, sljit_sw dstw,
1376 sljit_s32 src, sljit_sw srcw,
1377 sljit_s32 type)
1378 {
1379 sljit_s32 reg, flags = (GET_FLAGS(op) ? SET_FLAGS : 0);
1380
1381 CHECK_ERROR();
1382 CHECK(check_sljit_emit_op_flags(compiler, op, dst, dstw, src, srcw, type));
1383 ADJUST_LOCAL_OFFSET(dst, dstw);
1384
1385 if (dst == SLJIT_UNUSED)
1386 return SLJIT_SUCCESS;
1387
1388 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32)
1389 op = GET_OPCODE(op);
1390 reg = (op < SLJIT_ADD && FAST_IS_REG(dst)) ? dst : TMP_REG2;
1391
1392 compiler->cache_arg = 0;
1393 compiler->cache_argw = 0;
1394 if (op >= SLJIT_ADD && (src & SLJIT_MEM)) {
1395 ADJUST_LOCAL_OFFSET(src, srcw);
1396 FAIL_IF(emit_op_mem2(compiler, WORD_DATA | LOAD_DATA, TMP_REG1, src, srcw, dst, dstw));
1397 src = TMP_REG1;
1398 srcw = 0;
1399 }
1400
1401 type &= 0xff;
1402 if (type < SLJIT_EQUAL_F64)
1403 FAIL_IF(push_inst(compiler, BICC | get_cc(type) | 3, UNMOVABLE_INS));
1404 else
1405 FAIL_IF(push_inst(compiler, FBFCC | get_cc(type) | 3, UNMOVABLE_INS));
1406
1407 FAIL_IF(push_inst(compiler, OR | D(reg) | S1(0) | IMM(1), UNMOVABLE_INS));
1408 FAIL_IF(push_inst(compiler, OR | D(reg) | S1(0) | IMM(0), UNMOVABLE_INS));
1409
1410 if (op >= SLJIT_ADD)
1411 return emit_op(compiler, op, flags | CUMULATIVE_OP | IMM_OP | ALT_KEEP_CACHE, dst, dstw, src, srcw, TMP_REG2, 0);
1412
1413 return (reg == TMP_REG2) ? emit_op_mem(compiler, WORD_DATA, TMP_REG2, dst, dstw) : SLJIT_SUCCESS;
1414 #else
1415 #error "Implementation required"
1416 #endif
1417 }
1418
sljit_emit_const(struct sljit_compiler * compiler,sljit_s32 dst,sljit_sw dstw,sljit_sw init_value)1419 SLJIT_API_FUNC_ATTRIBUTE struct sljit_const* sljit_emit_const(struct sljit_compiler *compiler, sljit_s32 dst, sljit_sw dstw, sljit_sw init_value)
1420 {
1421 sljit_s32 reg;
1422 struct sljit_const *const_;
1423
1424 CHECK_ERROR_PTR();
1425 CHECK_PTR(check_sljit_emit_const(compiler, dst, dstw, init_value));
1426 ADJUST_LOCAL_OFFSET(dst, dstw);
1427
1428 const_ = (struct sljit_const*)ensure_abuf(compiler, sizeof(struct sljit_const));
1429 PTR_FAIL_IF(!const_);
1430 set_const(const_, compiler);
1431
1432 reg = SLOW_IS_REG(dst) ? dst : TMP_REG2;
1433
1434 PTR_FAIL_IF(emit_const(compiler, reg, init_value));
1435
1436 if (dst & SLJIT_MEM)
1437 PTR_FAIL_IF(emit_op_mem(compiler, WORD_DATA, TMP_REG2, dst, dstw));
1438 return const_;
1439 }
1440