1 /*
2 * Stack-less Just-In-Time compiler
3 *
4 * Copyright 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 /* This register is modified by calls, which affects the instruction
94 in the delay slot if it is used as a source register. */
95 #define TMP_LINK (SLJIT_NUMBER_OF_REGISTERS + 5)
96
97 #define TMP_FREG1 (SLJIT_NUMBER_OF_FLOAT_REGISTERS + 1)
98 #define TMP_FREG2 (SLJIT_NUMBER_OF_FLOAT_REGISTERS + 2)
99
100 static const sljit_u8 reg_map[SLJIT_NUMBER_OF_REGISTERS + 6] = {
101 0, 8, 9, 10, 11, 23, 22, 21, 20, 19, 18, 17, 16, 29, 28, 27, 26, 25, 24, 14, 1, 12, 13, 15
102 };
103
104 static const sljit_u8 freg_map[SLJIT_NUMBER_OF_FLOAT_REGISTERS + 3] = {
105 0, 0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30
106 };
107
108 /* --------------------------------------------------------------------- */
109 /* Instrucion forms */
110 /* --------------------------------------------------------------------- */
111
112 #define D(d) ((sljit_ins)reg_map[d] << 25)
113 #define FD(d) ((sljit_ins)freg_map[d] << 25)
114 #define FDN(d) (((sljit_ins)freg_map[d] | 0x1) << 25)
115 #define DA(d) ((sljit_ins)(d) << 25)
116 #define S1(s1) ((sljit_ins)reg_map[s1] << 14)
117 #define FS1(s1) ((sljit_ins)freg_map[s1] << 14)
118 #define S1A(s1) ((sljit_ins)(s1) << 14)
119 #define S2(s2) ((sljit_ins)reg_map[s2])
120 #define FS2(s2) ((sljit_ins)freg_map[s2])
121 #define FS2N(s2) ((sljit_ins)freg_map[s2] | 0x1)
122 #define S2A(s2) ((sljit_ins)(s2))
123 #define IMM_ARG 0x2000
124 #define DOP(op) ((sljit_ins)(op) << 5)
125 #define IMM(imm) (((sljit_ins)(imm) & 0x1fff) | IMM_ARG)
126
127 #define DR(dr) (reg_map[dr])
128 #define DRF(dr, flags) ((sljit_s32)(reg_map[dr] | ((flags) & SET_FLAGS)))
129 #define OPC1(opcode) ((sljit_ins)(opcode) << 30)
130 #define OPC2(opcode) ((sljit_ins)(opcode) << 22)
131 #define OPC3(opcode) ((sljit_ins)(opcode) << 19)
132 #define SET_FLAGS OPC3(0x10)
133
134 #define ADD (OPC1(0x2) | OPC3(0x00))
135 #define ADDC (OPC1(0x2) | OPC3(0x08))
136 #define AND (OPC1(0x2) | OPC3(0x01))
137 #define ANDN (OPC1(0x2) | OPC3(0x05))
138 #define CALL (OPC1(0x1))
139 #define FABSS (OPC1(0x2) | OPC3(0x34) | DOP(0x09))
140 #define FADDD (OPC1(0x2) | OPC3(0x34) | DOP(0x42))
141 #define FADDS (OPC1(0x2) | OPC3(0x34) | DOP(0x41))
142 #define FCMPD (OPC1(0x2) | OPC3(0x35) | DOP(0x52))
143 #define FCMPS (OPC1(0x2) | OPC3(0x35) | DOP(0x51))
144 #define FDIVD (OPC1(0x2) | OPC3(0x34) | DOP(0x4e))
145 #define FDIVS (OPC1(0x2) | OPC3(0x34) | DOP(0x4d))
146 #define FDTOI (OPC1(0x2) | OPC3(0x34) | DOP(0xd2))
147 #define FDTOS (OPC1(0x2) | OPC3(0x34) | DOP(0xc6))
148 #define FITOD (OPC1(0x2) | OPC3(0x34) | DOP(0xc8))
149 #define FITOS (OPC1(0x2) | OPC3(0x34) | DOP(0xc4))
150 #define FMOVS (OPC1(0x2) | OPC3(0x34) | DOP(0x01))
151 #define FMULD (OPC1(0x2) | OPC3(0x34) | DOP(0x4a))
152 #define FMULS (OPC1(0x2) | OPC3(0x34) | DOP(0x49))
153 #define FNEGS (OPC1(0x2) | OPC3(0x34) | DOP(0x05))
154 #define FSTOD (OPC1(0x2) | OPC3(0x34) | DOP(0xc9))
155 #define FSTOI (OPC1(0x2) | OPC3(0x34) | DOP(0xd1))
156 #define FSUBD (OPC1(0x2) | OPC3(0x34) | DOP(0x46))
157 #define FSUBS (OPC1(0x2) | OPC3(0x34) | DOP(0x45))
158 #define JMPL (OPC1(0x2) | OPC3(0x38))
159 #define LDD (OPC1(0x3) | OPC3(0x03))
160 #define LDDF (OPC1(0x3) | OPC3(0x23))
161 #define LDF (OPC1(0x3) | OPC3(0x20))
162 #define LDUW (OPC1(0x3) | OPC3(0x00))
163 #define NOP (OPC1(0x0) | OPC2(0x04))
164 #define OR (OPC1(0x2) | OPC3(0x02))
165 #define ORN (OPC1(0x2) | OPC3(0x06))
166 #define RDY (OPC1(0x2) | OPC3(0x28) | S1A(0))
167 #define RESTORE (OPC1(0x2) | OPC3(0x3d))
168 #define SAVE (OPC1(0x2) | OPC3(0x3c))
169 #define SETHI (OPC1(0x0) | OPC2(0x04))
170 #define SLL (OPC1(0x2) | OPC3(0x25))
171 #define SLLX (OPC1(0x2) | OPC3(0x25) | (1 << 12))
172 #define SRA (OPC1(0x2) | OPC3(0x27))
173 #define SRAX (OPC1(0x2) | OPC3(0x27) | (1 << 12))
174 #define SRL (OPC1(0x2) | OPC3(0x26))
175 #define SRLX (OPC1(0x2) | OPC3(0x26) | (1 << 12))
176 #define STD (OPC1(0x3) | OPC3(0x07))
177 #define STDF (OPC1(0x3) | OPC3(0x27))
178 #define STF (OPC1(0x3) | OPC3(0x24))
179 #define STW (OPC1(0x3) | OPC3(0x04))
180 #define SUB (OPC1(0x2) | OPC3(0x04))
181 #define SUBC (OPC1(0x2) | OPC3(0x0c))
182 #define TA (OPC1(0x2) | OPC3(0x3a) | (8 << 25))
183 #define WRY (OPC1(0x2) | OPC3(0x30) | DA(0))
184 #define XOR (OPC1(0x2) | OPC3(0x03))
185 #define XNOR (OPC1(0x2) | OPC3(0x07))
186
187 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32)
188 #define MAX_DISP (0x1fffff)
189 #define MIN_DISP (-0x200000)
190 #define DISP_MASK ((sljit_ins)0x3fffff)
191
192 #define BICC (OPC1(0x0) | OPC2(0x2))
193 #define FBFCC (OPC1(0x0) | OPC2(0x6))
194 #define SLL_W SLL
195 #define SDIV (OPC1(0x2) | OPC3(0x0f))
196 #define SMUL (OPC1(0x2) | OPC3(0x0b))
197 #define UDIV (OPC1(0x2) | OPC3(0x0e))
198 #define UMUL (OPC1(0x2) | OPC3(0x0a))
199 #else
200 #define SLL_W SLLX
201 #endif
202
203 #define SIMM_MAX (0x0fff)
204 #define SIMM_MIN (-0x1000)
205
206 /* dest_reg is the absolute name of the register
207 Useful for reordering instructions in the delay slot. */
push_inst(struct sljit_compiler * compiler,sljit_ins ins,sljit_s32 delay_slot)208 static sljit_s32 push_inst(struct sljit_compiler *compiler, sljit_ins ins, sljit_s32 delay_slot)
209 {
210 sljit_ins *ptr;
211 SLJIT_ASSERT((delay_slot & DST_INS_MASK) == UNMOVABLE_INS
212 || (delay_slot & DST_INS_MASK) == MOVABLE_INS
213 || (delay_slot & DST_INS_MASK) == ((ins >> 25) & 0x1f));
214 ptr = (sljit_ins*)ensure_buf(compiler, sizeof(sljit_ins));
215 FAIL_IF(!ptr);
216 *ptr = ins;
217 compiler->size++;
218 compiler->delay_slot = delay_slot;
219 return SLJIT_SUCCESS;
220 }
221
detect_jump_type(struct sljit_jump * jump,sljit_ins * code_ptr,sljit_ins * code,sljit_sw executable_offset)222 static SLJIT_INLINE sljit_ins* detect_jump_type(struct sljit_jump *jump, sljit_ins *code_ptr, sljit_ins *code, sljit_sw executable_offset)
223 {
224 sljit_sw diff;
225 sljit_uw target_addr;
226 sljit_ins *inst;
227 sljit_ins saved_inst;
228
229 if (jump->flags & SLJIT_REWRITABLE_JUMP)
230 return code_ptr;
231
232 if (jump->flags & JUMP_ADDR)
233 target_addr = jump->u.target;
234 else {
235 SLJIT_ASSERT(jump->flags & JUMP_LABEL);
236 target_addr = (sljit_uw)(code + jump->u.label->size) + (sljit_uw)executable_offset;
237 }
238 inst = (sljit_ins*)jump->addr;
239
240 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32)
241 if (jump->flags & IS_CALL) {
242 /* Call is always patchable on sparc 32. */
243 jump->flags |= PATCH_CALL;
244 if (jump->flags & IS_MOVABLE) {
245 inst[0] = inst[-1];
246 inst[-1] = CALL;
247 jump->addr -= sizeof(sljit_ins);
248 return inst;
249 }
250 inst[0] = CALL;
251 inst[1] = NOP;
252 return inst + 1;
253 }
254 #else
255 /* Both calls and BPr instructions shall not pass this point. */
256 #error "Implementation required"
257 #endif
258
259 if (jump->flags & IS_COND)
260 inst--;
261
262 diff = ((sljit_sw)target_addr - (sljit_sw)(inst - 1) - executable_offset) >> 2;
263
264 if (jump->flags & IS_MOVABLE) {
265 if (diff <= MAX_DISP && diff >= MIN_DISP) {
266 jump->flags |= PATCH_B;
267 inst--;
268 if (jump->flags & IS_COND) {
269 saved_inst = inst[0];
270 inst[0] = inst[1] ^ (1 << 28);
271 inst[1] = saved_inst;
272 } else {
273 inst[1] = inst[0];
274 inst[0] = BICC | DA(0x8);
275 }
276 jump->addr = (sljit_uw)inst;
277 return inst + 1;
278 }
279 }
280
281 diff += SSIZE_OF(ins);
282
283 if (diff <= MAX_DISP && diff >= MIN_DISP) {
284 jump->flags |= PATCH_B;
285 if (jump->flags & IS_COND)
286 inst[0] ^= (1 << 28);
287 else
288 inst[0] = BICC | DA(0x8);
289 inst[1] = NOP;
290 jump->addr = (sljit_uw)inst;
291 return inst + 1;
292 }
293
294 return code_ptr;
295 }
296
sljit_generate_code(struct sljit_compiler * compiler)297 SLJIT_API_FUNC_ATTRIBUTE void* sljit_generate_code(struct sljit_compiler *compiler)
298 {
299 struct sljit_memory_fragment *buf;
300 sljit_ins *code;
301 sljit_ins *code_ptr;
302 sljit_ins *buf_ptr;
303 sljit_ins *buf_end;
304 sljit_uw word_count;
305 sljit_uw next_addr;
306 sljit_sw executable_offset;
307 sljit_sw addr;
308
309 struct sljit_label *label;
310 struct sljit_jump *jump;
311 struct sljit_const *const_;
312 struct sljit_put_label *put_label;
313
314 CHECK_ERROR_PTR();
315 CHECK_PTR(check_sljit_generate_code(compiler));
316 reverse_buf(compiler);
317
318 code = (sljit_ins*)SLJIT_MALLOC_EXEC(compiler->size * sizeof(sljit_ins), compiler->exec_allocator_data);
319 PTR_FAIL_WITH_EXEC_IF(code);
320 buf = compiler->buf;
321
322 code_ptr = code;
323 word_count = 0;
324 next_addr = 0;
325 executable_offset = SLJIT_EXEC_OFFSET(code);
326
327 label = compiler->labels;
328 jump = compiler->jumps;
329 const_ = compiler->consts;
330 put_label = compiler->put_labels;
331
332 do {
333 buf_ptr = (sljit_ins*)buf->memory;
334 buf_end = buf_ptr + (buf->used_size >> 2);
335 do {
336 *code_ptr = *buf_ptr++;
337 if (next_addr == word_count) {
338 SLJIT_ASSERT(!label || label->size >= word_count);
339 SLJIT_ASSERT(!jump || jump->addr >= word_count);
340 SLJIT_ASSERT(!const_ || const_->addr >= word_count);
341 SLJIT_ASSERT(!put_label || put_label->addr >= word_count);
342
343 /* These structures are ordered by their address. */
344 if (label && label->size == word_count) {
345 /* Just recording the address. */
346 label->addr = (sljit_uw)SLJIT_ADD_EXEC_OFFSET(code_ptr, executable_offset);
347 label->size = (sljit_uw)(code_ptr - code);
348 label = label->next;
349 }
350 if (jump && jump->addr == word_count) {
351 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32)
352 jump->addr = (sljit_uw)(code_ptr - 3);
353 #else
354 jump->addr = (sljit_uw)(code_ptr - 6);
355 #endif
356 code_ptr = detect_jump_type(jump, code_ptr, code, executable_offset);
357 jump = jump->next;
358 }
359 if (const_ && const_->addr == word_count) {
360 /* Just recording the address. */
361 const_->addr = (sljit_uw)code_ptr;
362 const_ = const_->next;
363 }
364 if (put_label && put_label->addr == word_count) {
365 SLJIT_ASSERT(put_label->label);
366 put_label->addr = (sljit_uw)code_ptr;
367 put_label = put_label->next;
368 }
369 next_addr = compute_next_addr(label, jump, const_, put_label);
370 }
371 code_ptr ++;
372 word_count ++;
373 } while (buf_ptr < buf_end);
374
375 buf = buf->next;
376 } while (buf);
377
378 if (label && label->size == word_count) {
379 label->addr = (sljit_uw)SLJIT_ADD_EXEC_OFFSET(code_ptr, executable_offset);
380 label->size = (sljit_uw)(code_ptr - code);
381 label = label->next;
382 }
383
384 SLJIT_ASSERT(!label);
385 SLJIT_ASSERT(!jump);
386 SLJIT_ASSERT(!const_);
387 SLJIT_ASSERT(!put_label);
388 SLJIT_ASSERT(code_ptr - code <= (sljit_s32)compiler->size);
389
390 jump = compiler->jumps;
391 while (jump) {
392 do {
393 addr = (sljit_sw)((jump->flags & JUMP_LABEL) ? jump->u.label->addr : jump->u.target);
394 buf_ptr = (sljit_ins *)jump->addr;
395
396 if (jump->flags & PATCH_CALL) {
397 addr = (addr - (sljit_sw)SLJIT_ADD_EXEC_OFFSET(buf_ptr, executable_offset)) >> 2;
398 SLJIT_ASSERT(addr <= 0x1fffffff && addr >= -0x20000000);
399 buf_ptr[0] = CALL | ((sljit_ins)addr & 0x3fffffff);
400 break;
401 }
402 if (jump->flags & PATCH_B) {
403 addr = (addr - (sljit_sw)SLJIT_ADD_EXEC_OFFSET(buf_ptr, executable_offset)) >> 2;
404 SLJIT_ASSERT(addr <= MAX_DISP && addr >= MIN_DISP);
405 buf_ptr[0] = (buf_ptr[0] & ~DISP_MASK) | ((sljit_ins)addr & DISP_MASK);
406 break;
407 }
408
409 /* Set the fields of immediate loads. */
410 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32)
411 SLJIT_ASSERT(((buf_ptr[0] & 0xc1cfffff) == 0x01000000) && ((buf_ptr[1] & 0xc1f83fff) == 0x80102000));
412 buf_ptr[0] |= (sljit_ins)(addr >> 10) & 0x3fffff;
413 buf_ptr[1] |= (sljit_ins)addr & 0x3ff;
414 #else
415 #error "Implementation required"
416 #endif
417 } while (0);
418 jump = jump->next;
419 }
420
421 put_label = compiler->put_labels;
422 while (put_label) {
423 addr = (sljit_sw)put_label->label->addr;
424 buf_ptr = (sljit_ins *)put_label->addr;
425
426 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32)
427 SLJIT_ASSERT(((buf_ptr[0] & 0xc1cfffff) == 0x01000000) && ((buf_ptr[1] & 0xc1f83fff) == 0x80102000));
428 buf_ptr[0] |= (addr >> 10) & 0x3fffff;
429 buf_ptr[1] |= addr & 0x3ff;
430 #else
431 #error "Implementation required"
432 #endif
433 put_label = put_label->next;
434 }
435
436 compiler->error = SLJIT_ERR_COMPILED;
437 compiler->executable_offset = executable_offset;
438 compiler->executable_size = (sljit_uw)(code_ptr - code) * sizeof(sljit_ins);
439
440 code = (sljit_ins *)SLJIT_ADD_EXEC_OFFSET(code, executable_offset);
441 code_ptr = (sljit_ins *)SLJIT_ADD_EXEC_OFFSET(code_ptr, executable_offset);
442
443 SLJIT_CACHE_FLUSH(code, code_ptr);
444 SLJIT_UPDATE_WX_FLAGS(code, code_ptr, 1);
445 return code;
446 }
447
sljit_has_cpu_feature(sljit_s32 feature_type)448 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_has_cpu_feature(sljit_s32 feature_type)
449 {
450 switch (feature_type) {
451 case SLJIT_HAS_FPU:
452 #ifdef SLJIT_IS_FPU_AVAILABLE
453 return SLJIT_IS_FPU_AVAILABLE;
454 #else
455 /* Available by default. */
456 return 1;
457 #endif
458
459 case SLJIT_HAS_ZERO_REGISTER:
460 return 1;
461
462 #if (defined SLJIT_CONFIG_SPARC_64 && SLJIT_CONFIG_SPARC_64)
463 case SLJIT_HAS_CMOV:
464 return 1;
465 #endif
466
467 default:
468 return 0;
469 }
470 }
471
472 /* --------------------------------------------------------------------- */
473 /* Entry, exit */
474 /* --------------------------------------------------------------------- */
475
476 /* Creates an index in data_transfer_insts array. */
477 #define LOAD_DATA 0x01
478 #define WORD_DATA 0x00
479 #define BYTE_DATA 0x02
480 #define HALF_DATA 0x04
481 #define INT_DATA 0x06
482 #define SIGNED_DATA 0x08
483 /* Separates integer and floating point registers */
484 #define GPR_REG 0x0f
485 #define DOUBLE_DATA 0x10
486 #define SINGLE_DATA 0x12
487
488 #define MEM_MASK 0x1f
489
490 #define ARG_TEST 0x00020
491 #define ALT_KEEP_CACHE 0x00040
492 #define CUMULATIVE_OP 0x00080
493 #define IMM_OP 0x00100
494 #define MOVE_OP 0x00200
495 #define SRC2_IMM 0x00400
496
497 #define REG_DEST 0x00800
498 #define REG2_SOURCE 0x01000
499 #define SLOW_SRC1 0x02000
500 #define SLOW_SRC2 0x04000
501 #define SLOW_DEST 0x08000
502
503 /* SET_FLAGS (0x10 << 19) also belong here! */
504
505 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32)
506 #include "sljitNativeSPARC_32.c"
507 #else
508 #include "sljitNativeSPARC_64.c"
509 #endif
510
sljit_emit_enter(struct sljit_compiler * compiler,sljit_s32 options,sljit_s32 arg_types,sljit_s32 scratches,sljit_s32 saveds,sljit_s32 fscratches,sljit_s32 fsaveds,sljit_s32 local_size)511 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_enter(struct sljit_compiler *compiler,
512 sljit_s32 options, sljit_s32 arg_types, sljit_s32 scratches, sljit_s32 saveds,
513 sljit_s32 fscratches, sljit_s32 fsaveds, sljit_s32 local_size)
514 {
515 sljit_s32 reg_index, types, tmp;
516 sljit_u32 float_offset, args_offset;
517 sljit_s32 saved_arg_index, scratch_arg_index, float_arg_index;
518
519 CHECK_ERROR();
520 CHECK(check_sljit_emit_enter(compiler, options, arg_types, scratches, saveds, fscratches, fsaveds, local_size));
521 set_emit_enter(compiler, options, arg_types, scratches, saveds, fscratches, fsaveds, local_size);
522
523 local_size = (local_size + SLJIT_LOCALS_OFFSET + 7) & ~0x7;
524 compiler->local_size = local_size;
525
526 if (local_size <= -SIMM_MIN) {
527 FAIL_IF(push_inst(compiler, SAVE | D(SLJIT_SP) | S1(SLJIT_SP) | IMM(-local_size), UNMOVABLE_INS));
528 }
529 else {
530 FAIL_IF(load_immediate(compiler, TMP_REG1, -local_size));
531 FAIL_IF(push_inst(compiler, SAVE | D(SLJIT_SP) | S1(SLJIT_SP) | S2(TMP_REG1), UNMOVABLE_INS));
532 }
533
534 arg_types >>= SLJIT_ARG_SHIFT;
535
536 types = arg_types;
537 float_offset = 16 * sizeof(sljit_sw);
538 reg_index = 24;
539
540 while (types && reg_index < 24 + 6) {
541 switch (types & SLJIT_ARG_MASK) {
542 case SLJIT_ARG_TYPE_F64:
543 if (reg_index & 0x1) {
544 FAIL_IF(push_inst(compiler, STW | DA(reg_index) | S1(SLJIT_SP) | IMM(float_offset), MOVABLE_INS));
545 if (reg_index >= 24 + 6 - 1)
546 break;
547 FAIL_IF(push_inst(compiler, STW | DA(reg_index + 1) | S1(SLJIT_SP) | IMM(float_offset + sizeof(sljit_sw)), MOVABLE_INS));
548 } else
549 FAIL_IF(push_inst(compiler, STD | DA(reg_index) | S1(SLJIT_SP) | IMM(float_offset), MOVABLE_INS));
550
551 float_offset += sizeof(sljit_f64);
552 reg_index++;
553 break;
554 case SLJIT_ARG_TYPE_F32:
555 FAIL_IF(push_inst(compiler, STW | DA(reg_index) | S1(SLJIT_SP) | IMM(float_offset), MOVABLE_INS));
556 float_offset += sizeof(sljit_f64);
557 break;
558 }
559
560 reg_index++;
561 types >>= SLJIT_ARG_SHIFT;
562 }
563
564 args_offset = (16 + 1 + 6) * sizeof(sljit_sw);
565 float_offset = 16 * sizeof(sljit_sw);
566 reg_index = 24;
567 saved_arg_index = 24;
568 scratch_arg_index = 8 - 1;
569 float_arg_index = 1;
570
571 while (arg_types) {
572 switch (arg_types & SLJIT_ARG_MASK) {
573 case SLJIT_ARG_TYPE_F64:
574 if (reg_index < 24 + 6 - 1) {
575 FAIL_IF(push_inst(compiler, LDDF | FD(float_arg_index) | S1(SLJIT_SP) | IMM(float_offset), MOVABLE_INS));
576 } else if (reg_index < 24 + 6) {
577 FAIL_IF(push_inst(compiler, LDF | FD(float_arg_index) | S1(SLJIT_SP) | IMM(float_offset), MOVABLE_INS));
578 FAIL_IF(push_inst(compiler, LDF | FD(float_arg_index) | (1 << 25) | S1A(30) | IMM(args_offset), MOVABLE_INS));
579 } else {
580 FAIL_IF(push_inst(compiler, LDF | FD(float_arg_index) | S1A(30) | IMM(args_offset), MOVABLE_INS));
581 FAIL_IF(push_inst(compiler, LDF | FD(float_arg_index) | (1 << 25) | S1A(30) | IMM(args_offset + sizeof(sljit_sw)), MOVABLE_INS));
582 }
583
584 float_arg_index++;
585 float_offset += sizeof(sljit_f64);
586 reg_index++;
587 break;
588 case SLJIT_ARG_TYPE_F32:
589 if (reg_index < 24 + 6)
590 FAIL_IF(push_inst(compiler, LDF | FD(float_arg_index) | S1(SLJIT_SP) | IMM(float_offset), MOVABLE_INS));
591 else
592 FAIL_IF(push_inst(compiler, LDF | FD(float_arg_index) | S1A(30) | IMM(args_offset), MOVABLE_INS));
593 float_arg_index++;
594 float_offset += sizeof(sljit_f64);
595 break;
596 default:
597 scratch_arg_index++;
598
599 if (!(arg_types & SLJIT_ARG_TYPE_SCRATCH_REG)) {
600 tmp = saved_arg_index++;
601 if (tmp == reg_index)
602 break;
603 } else
604 tmp = scratch_arg_index;
605
606 if (reg_index < 24 + 6)
607 FAIL_IF(push_inst(compiler, OR | DA(tmp) | S1(0) | S2A(reg_index), tmp));
608 else
609 FAIL_IF(push_inst(compiler, LDUW | DA(tmp) | S1A(30) | IMM(args_offset), tmp));
610 break;
611 }
612
613 reg_index++;
614 arg_types >>= SLJIT_ARG_SHIFT;
615 }
616
617 return SLJIT_SUCCESS;
618 }
619
sljit_set_context(struct sljit_compiler * compiler,sljit_s32 options,sljit_s32 arg_types,sljit_s32 scratches,sljit_s32 saveds,sljit_s32 fscratches,sljit_s32 fsaveds,sljit_s32 local_size)620 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_set_context(struct sljit_compiler *compiler,
621 sljit_s32 options, sljit_s32 arg_types, sljit_s32 scratches, sljit_s32 saveds,
622 sljit_s32 fscratches, sljit_s32 fsaveds, sljit_s32 local_size)
623 {
624 CHECK_ERROR();
625 CHECK(check_sljit_set_context(compiler, options, arg_types, scratches, saveds, fscratches, fsaveds, local_size));
626 set_set_context(compiler, options, arg_types, scratches, saveds, fscratches, fsaveds, local_size);
627
628 compiler->local_size = (local_size + SLJIT_LOCALS_OFFSET + 7) & ~0x7;
629 return SLJIT_SUCCESS;
630 }
631
sljit_emit_return_void(struct sljit_compiler * compiler)632 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_return_void(struct sljit_compiler *compiler)
633 {
634 CHECK_ERROR();
635 CHECK(check_sljit_emit_return_void(compiler));
636
637 FAIL_IF(push_inst(compiler, JMPL | D(0) | S1A(31) | IMM(8), UNMOVABLE_INS));
638 return push_inst(compiler, RESTORE | D(SLJIT_R0) | S1(SLJIT_R0) | S2(0), UNMOVABLE_INS);
639 }
640
sljit_emit_return(struct sljit_compiler * compiler,sljit_s32 op,sljit_s32 src,sljit_sw srcw)641 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_return(struct sljit_compiler *compiler, sljit_s32 op, sljit_s32 src, sljit_sw srcw)
642 {
643 CHECK_ERROR();
644 CHECK(check_sljit_emit_return(compiler, op, src, srcw));
645
646 if (TYPE_CAST_NEEDED(op) || !FAST_IS_REG(src)) {
647 FAIL_IF(emit_mov_before_return(compiler, op, src, srcw));
648 src = SLJIT_R0;
649 }
650
651 FAIL_IF(push_inst(compiler, JMPL | D(0) | S1A(31) | IMM(8), UNMOVABLE_INS));
652 return push_inst(compiler, RESTORE | D(SLJIT_R0) | S1(src) | S2(0), UNMOVABLE_INS);
653 }
654
655 /* --------------------------------------------------------------------- */
656 /* Operators */
657 /* --------------------------------------------------------------------- */
658
659 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32)
660 #define ARCH_32_64(a, b) a
661 #else
662 #define ARCH_32_64(a, b) b
663 #endif
664
665 static const sljit_ins data_transfer_insts[16 + 4] = {
666 /* u w s */ ARCH_32_64(OPC1(3) | OPC3(0x04) /* stw */, OPC1(3) | OPC3(0x0e) /* stx */),
667 /* u w l */ ARCH_32_64(OPC1(3) | OPC3(0x00) /* lduw */, OPC1(3) | OPC3(0x0b) /* ldx */),
668 /* u b s */ OPC1(3) | OPC3(0x05) /* stb */,
669 /* u b l */ OPC1(3) | OPC3(0x01) /* ldub */,
670 /* u h s */ OPC1(3) | OPC3(0x06) /* sth */,
671 /* u h l */ OPC1(3) | OPC3(0x02) /* lduh */,
672 /* u i s */ OPC1(3) | OPC3(0x04) /* stw */,
673 /* u i l */ OPC1(3) | OPC3(0x00) /* lduw */,
674
675 /* s w s */ ARCH_32_64(OPC1(3) | OPC3(0x04) /* stw */, OPC1(3) | OPC3(0x0e) /* stx */),
676 /* s w l */ ARCH_32_64(OPC1(3) | OPC3(0x00) /* lduw */, OPC1(3) | OPC3(0x0b) /* ldx */),
677 /* s b s */ OPC1(3) | OPC3(0x05) /* stb */,
678 /* s b l */ OPC1(3) | OPC3(0x09) /* ldsb */,
679 /* s h s */ OPC1(3) | OPC3(0x06) /* sth */,
680 /* s h l */ OPC1(3) | OPC3(0x0a) /* ldsh */,
681 /* s i s */ OPC1(3) | OPC3(0x04) /* stw */,
682 /* s i l */ ARCH_32_64(OPC1(3) | OPC3(0x00) /* lduw */, OPC1(3) | OPC3(0x08) /* ldsw */),
683
684 /* d s */ OPC1(3) | OPC3(0x27),
685 /* d l */ OPC1(3) | OPC3(0x23),
686 /* s s */ OPC1(3) | OPC3(0x24),
687 /* s l */ OPC1(3) | OPC3(0x20),
688 };
689
690 #undef ARCH_32_64
691
692 /* Can perform an operation using at most 1 instruction. */
getput_arg_fast(struct sljit_compiler * compiler,sljit_u32 flags,sljit_s32 reg,sljit_s32 arg,sljit_sw argw)693 static sljit_s32 getput_arg_fast(struct sljit_compiler *compiler, sljit_u32 flags, sljit_s32 reg, sljit_s32 arg, sljit_sw argw)
694 {
695 SLJIT_ASSERT(arg & SLJIT_MEM);
696
697 if ((!(arg & OFFS_REG_MASK) && argw <= SIMM_MAX && argw >= SIMM_MIN)
698 || ((arg & OFFS_REG_MASK) && (argw & 0x3) == 0)) {
699 /* Works for both absoulte and relative addresses (immediate case). */
700 if (SLJIT_UNLIKELY(flags & ARG_TEST))
701 return 1;
702 FAIL_IF(push_inst(compiler, data_transfer_insts[flags & MEM_MASK]
703 | ((flags & MEM_MASK) <= GPR_REG ? D(reg) : FD(reg))
704 | S1(arg & REG_MASK) | ((arg & OFFS_REG_MASK) ? S2(OFFS_REG(arg)) : IMM(argw)),
705 ((flags & MEM_MASK) <= GPR_REG && (flags & LOAD_DATA)) ? DR(reg) : MOVABLE_INS));
706 return -1;
707 }
708 return 0;
709 }
710
711 /* See getput_arg below.
712 Note: can_cache is called only for binary operators. Those
713 operators always uses word arguments without write back. */
can_cache(sljit_s32 arg,sljit_sw argw,sljit_s32 next_arg,sljit_sw next_argw)714 static sljit_s32 can_cache(sljit_s32 arg, sljit_sw argw, sljit_s32 next_arg, sljit_sw next_argw)
715 {
716 SLJIT_ASSERT((arg & SLJIT_MEM) && (next_arg & SLJIT_MEM));
717
718 /* Simple operation except for updates. */
719 if (arg & OFFS_REG_MASK) {
720 argw &= 0x3;
721 SLJIT_ASSERT(argw);
722 next_argw &= 0x3;
723 if ((arg & OFFS_REG_MASK) == (next_arg & OFFS_REG_MASK) && argw == next_argw)
724 return 1;
725 return 0;
726 }
727
728 if (((next_argw - argw) <= SIMM_MAX && (next_argw - argw) >= SIMM_MIN))
729 return 1;
730 return 0;
731 }
732
733 /* Emit the necessary instructions. See can_cache above. */
getput_arg(struct sljit_compiler * compiler,sljit_u32 flags,sljit_s32 reg,sljit_s32 arg,sljit_sw argw,sljit_s32 next_arg,sljit_sw next_argw)734 static sljit_s32 getput_arg(struct sljit_compiler *compiler, sljit_u32 flags, sljit_s32 reg, sljit_s32 arg, sljit_sw argw, sljit_s32 next_arg, sljit_sw next_argw)
735 {
736 sljit_s32 base, arg2, delay_slot;
737 sljit_ins dest;
738
739 SLJIT_ASSERT(arg & SLJIT_MEM);
740 if (!(next_arg & SLJIT_MEM)) {
741 next_arg = 0;
742 next_argw = 0;
743 }
744
745 base = arg & REG_MASK;
746 if (SLJIT_UNLIKELY(arg & OFFS_REG_MASK)) {
747 argw &= 0x3;
748
749 /* Using the cache. */
750 if (((SLJIT_MEM | (arg & OFFS_REG_MASK)) == compiler->cache_arg) && (argw == compiler->cache_argw))
751 arg2 = TMP_REG3;
752 else {
753 if ((arg & OFFS_REG_MASK) == (next_arg & OFFS_REG_MASK) && argw == (next_argw & 0x3)) {
754 compiler->cache_arg = SLJIT_MEM | (arg & OFFS_REG_MASK);
755 compiler->cache_argw = argw;
756 arg2 = TMP_REG3;
757 }
758 else if ((flags & LOAD_DATA) && ((flags & MEM_MASK) <= GPR_REG) && reg != base && reg != OFFS_REG(arg))
759 arg2 = reg;
760 else /* It must be a mov operation, so tmp1 must be free to use. */
761 arg2 = TMP_REG1;
762 FAIL_IF(push_inst(compiler, SLL_W | D(arg2) | S1(OFFS_REG(arg)) | IMM_ARG | (sljit_ins)argw, DR(arg2)));
763 }
764 }
765 else {
766 /* Using the cache. */
767 if ((compiler->cache_arg == SLJIT_MEM) && (argw - compiler->cache_argw) <= SIMM_MAX && (argw - compiler->cache_argw) >= SIMM_MIN) {
768 if (argw != compiler->cache_argw) {
769 FAIL_IF(push_inst(compiler, ADD | D(TMP_REG3) | S1(TMP_REG3) | IMM(argw - compiler->cache_argw), DR(TMP_REG3)));
770 compiler->cache_argw = argw;
771 }
772 arg2 = TMP_REG3;
773 } else {
774 if ((next_argw - argw) <= SIMM_MAX && (next_argw - argw) >= SIMM_MIN) {
775 compiler->cache_arg = SLJIT_MEM;
776 compiler->cache_argw = argw;
777 arg2 = TMP_REG3;
778 }
779 else if ((flags & LOAD_DATA) && ((flags & MEM_MASK) <= GPR_REG) && reg != base)
780 arg2 = reg;
781 else /* It must be a mov operation, so tmp1 must be free to use. */
782 arg2 = TMP_REG1;
783 FAIL_IF(load_immediate(compiler, arg2, argw));
784 }
785 }
786
787 dest = ((flags & MEM_MASK) <= GPR_REG ? D(reg) : FD(reg));
788 delay_slot = ((flags & MEM_MASK) <= GPR_REG && (flags & LOAD_DATA)) ? DR(reg) : MOVABLE_INS;
789 if (!base)
790 return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | dest | S1(arg2) | IMM(0), delay_slot);
791 return push_inst(compiler, data_transfer_insts[flags & MEM_MASK] | dest | S1(base) | S2(arg2), delay_slot);
792 }
793
emit_op_mem(struct sljit_compiler * compiler,sljit_u32 flags,sljit_s32 reg,sljit_s32 arg,sljit_sw argw)794 static SLJIT_INLINE sljit_s32 emit_op_mem(struct sljit_compiler *compiler, sljit_u32 flags, sljit_s32 reg, sljit_s32 arg, sljit_sw argw)
795 {
796 if (getput_arg_fast(compiler, flags, reg, arg, argw))
797 return compiler->error;
798 compiler->cache_arg = 0;
799 compiler->cache_argw = 0;
800 return getput_arg(compiler, flags, reg, arg, argw, 0, 0);
801 }
802
emit_op_mem2(struct sljit_compiler * compiler,sljit_u32 flags,sljit_s32 reg,sljit_s32 arg1,sljit_sw arg1w,sljit_s32 arg2,sljit_sw arg2w)803 static SLJIT_INLINE sljit_s32 emit_op_mem2(struct sljit_compiler *compiler, sljit_u32 flags, sljit_s32 reg, sljit_s32 arg1, sljit_sw arg1w, sljit_s32 arg2, sljit_sw arg2w)
804 {
805 if (getput_arg_fast(compiler, flags, reg, arg1, arg1w))
806 return compiler->error;
807 return getput_arg(compiler, flags, reg, arg1, arg1w, arg2, arg2w);
808 }
809
emit_op(struct sljit_compiler * compiler,sljit_s32 op,sljit_u32 flags,sljit_s32 dst,sljit_sw dstw,sljit_s32 src1,sljit_sw src1w,sljit_s32 src2,sljit_sw src2w)810 static sljit_s32 emit_op(struct sljit_compiler *compiler, sljit_s32 op, sljit_u32 flags,
811 sljit_s32 dst, sljit_sw dstw,
812 sljit_s32 src1, sljit_sw src1w,
813 sljit_s32 src2, sljit_sw src2w)
814 {
815 /* arg1 goes to TMP_REG1 or src reg
816 arg2 goes to TMP_REG2, imm or src reg
817 TMP_REG3 can be used for caching
818 result goes to TMP_REG2, so put result can use TMP_REG1 and TMP_REG3. */
819 sljit_s32 dst_r = TMP_REG2;
820 sljit_s32 src1_r;
821 sljit_sw src2_r = 0;
822 sljit_s32 sugg_src2_r = TMP_REG2;
823
824 if (!(flags & ALT_KEEP_CACHE)) {
825 compiler->cache_arg = 0;
826 compiler->cache_argw = 0;
827 }
828
829 if (dst != TMP_REG2) {
830 if (FAST_IS_REG(dst)) {
831 dst_r = dst;
832 flags |= REG_DEST;
833 if (flags & MOVE_OP)
834 sugg_src2_r = dst_r;
835 }
836 else if ((dst & SLJIT_MEM) && !getput_arg_fast(compiler, flags | ARG_TEST, TMP_REG1, dst, dstw))
837 flags |= SLOW_DEST;
838 }
839
840 if (flags & IMM_OP) {
841 if ((src2 & SLJIT_IMM) && src2w) {
842 if (src2w <= SIMM_MAX && src2w >= SIMM_MIN) {
843 flags |= SRC2_IMM;
844 src2_r = src2w;
845 }
846 }
847 if (!(flags & SRC2_IMM) && (flags & CUMULATIVE_OP) && (src1 & SLJIT_IMM) && src1w) {
848 if (src1w <= SIMM_MAX && src1w >= SIMM_MIN) {
849 flags |= SRC2_IMM;
850 src2_r = src1w;
851
852 /* And swap arguments. */
853 src1 = src2;
854 src1w = src2w;
855 src2 = SLJIT_IMM;
856 /* src2w = src2_r unneeded. */
857 }
858 }
859 }
860
861 /* Source 1. */
862 if (FAST_IS_REG(src1))
863 src1_r = src1;
864 else if (src1 & SLJIT_IMM) {
865 if (src1w) {
866 FAIL_IF(load_immediate(compiler, TMP_REG1, src1w));
867 src1_r = TMP_REG1;
868 }
869 else
870 src1_r = 0;
871 }
872 else {
873 if (getput_arg_fast(compiler, flags | LOAD_DATA, TMP_REG1, src1, src1w))
874 FAIL_IF(compiler->error);
875 else
876 flags |= SLOW_SRC1;
877 src1_r = TMP_REG1;
878 }
879
880 /* Source 2. */
881 if (FAST_IS_REG(src2)) {
882 src2_r = src2;
883 flags |= REG2_SOURCE;
884 if ((flags & (REG_DEST | MOVE_OP)) == MOVE_OP)
885 dst_r = src2_r;
886 }
887 else if (src2 & SLJIT_IMM) {
888 if (!(flags & SRC2_IMM)) {
889 if (src2w) {
890 FAIL_IF(load_immediate(compiler, sugg_src2_r, src2w));
891 src2_r = sugg_src2_r;
892 }
893 else {
894 src2_r = 0;
895 if (flags & MOVE_OP) {
896 if (dst & SLJIT_MEM)
897 dst_r = 0;
898 else
899 op = SLJIT_MOV;
900 }
901 }
902 }
903 }
904 else {
905 if (getput_arg_fast(compiler, flags | LOAD_DATA, sugg_src2_r, src2, src2w))
906 FAIL_IF(compiler->error);
907 else
908 flags |= SLOW_SRC2;
909 src2_r = sugg_src2_r;
910 }
911
912 if ((flags & (SLOW_SRC1 | SLOW_SRC2)) == (SLOW_SRC1 | SLOW_SRC2)) {
913 SLJIT_ASSERT(src2_r == TMP_REG2);
914 if (!can_cache(src1, src1w, src2, src2w) && can_cache(src1, src1w, dst, dstw)) {
915 FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, TMP_REG2, src2, src2w, src1, src1w));
916 FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, TMP_REG1, src1, src1w, dst, dstw));
917 }
918 else {
919 FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, TMP_REG1, src1, src1w, src2, src2w));
920 FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, TMP_REG2, src2, src2w, dst, dstw));
921 }
922 }
923 else if (flags & SLOW_SRC1)
924 FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, TMP_REG1, src1, src1w, dst, dstw));
925 else if (flags & SLOW_SRC2)
926 FAIL_IF(getput_arg(compiler, flags | LOAD_DATA, sugg_src2_r, src2, src2w, dst, dstw));
927
928 FAIL_IF(emit_single_op(compiler, op, flags, dst_r, src1_r, src2_r));
929
930 if (dst & SLJIT_MEM) {
931 if (!(flags & SLOW_DEST)) {
932 getput_arg_fast(compiler, flags, dst_r, dst, dstw);
933 return compiler->error;
934 }
935 return getput_arg(compiler, flags, dst_r, dst, dstw, 0, 0);
936 }
937
938 return SLJIT_SUCCESS;
939 }
940
sljit_emit_op0(struct sljit_compiler * compiler,sljit_s32 op)941 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_op0(struct sljit_compiler *compiler, sljit_s32 op)
942 {
943 CHECK_ERROR();
944 CHECK(check_sljit_emit_op0(compiler, op));
945
946 op = GET_OPCODE(op);
947 switch (op) {
948 case SLJIT_BREAKPOINT:
949 return push_inst(compiler, TA, UNMOVABLE_INS);
950 case SLJIT_NOP:
951 return push_inst(compiler, NOP, UNMOVABLE_INS);
952 case SLJIT_LMUL_UW:
953 case SLJIT_LMUL_SW:
954 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32)
955 FAIL_IF(push_inst(compiler, (op == SLJIT_LMUL_UW ? UMUL : SMUL) | D(SLJIT_R0) | S1(SLJIT_R0) | S2(SLJIT_R1), DR(SLJIT_R0)));
956 return push_inst(compiler, RDY | D(SLJIT_R1), DR(SLJIT_R1));
957 #else
958 #error "Implementation required"
959 #endif
960 case SLJIT_DIVMOD_UW:
961 case SLJIT_DIVMOD_SW:
962 case SLJIT_DIV_UW:
963 case SLJIT_DIV_SW:
964 SLJIT_COMPILE_ASSERT((SLJIT_DIVMOD_UW & 0x2) == 0 && SLJIT_DIV_UW - 0x2 == SLJIT_DIVMOD_UW, bad_div_opcode_assignments);
965 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32)
966 if ((op | 0x2) == SLJIT_DIV_UW)
967 FAIL_IF(push_inst(compiler, WRY | S1(0), MOVABLE_INS));
968 else {
969 FAIL_IF(push_inst(compiler, SRA | D(TMP_REG1) | S1(SLJIT_R0) | IMM(31), DR(TMP_REG1)));
970 FAIL_IF(push_inst(compiler, WRY | S1(TMP_REG1), MOVABLE_INS));
971 }
972 if (op <= SLJIT_DIVMOD_SW)
973 FAIL_IF(push_inst(compiler, OR | D(TMP_REG2) | S1(0) | S2(SLJIT_R0), DR(TMP_REG2)));
974 FAIL_IF(push_inst(compiler, ((op | 0x2) == SLJIT_DIV_UW ? UDIV : SDIV) | D(SLJIT_R0) | S1(SLJIT_R0) | S2(SLJIT_R1), DR(SLJIT_R0)));
975 if (op >= SLJIT_DIV_UW)
976 return SLJIT_SUCCESS;
977 FAIL_IF(push_inst(compiler, SMUL | D(SLJIT_R1) | S1(SLJIT_R0) | S2(SLJIT_R1), DR(SLJIT_R1)));
978 return push_inst(compiler, SUB | D(SLJIT_R1) | S1(TMP_REG2) | S2(SLJIT_R1), DR(SLJIT_R1));
979 #else
980 #error "Implementation required"
981 #endif
982 case SLJIT_ENDBR:
983 case SLJIT_SKIP_FRAMES_BEFORE_RETURN:
984 return SLJIT_SUCCESS;
985 }
986
987 return SLJIT_SUCCESS;
988 }
989
sljit_emit_op1(struct sljit_compiler * compiler,sljit_s32 op,sljit_s32 dst,sljit_sw dstw,sljit_s32 src,sljit_sw srcw)990 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_op1(struct sljit_compiler *compiler, sljit_s32 op,
991 sljit_s32 dst, sljit_sw dstw,
992 sljit_s32 src, sljit_sw srcw)
993 {
994 sljit_u32 flags = HAS_FLAGS(op) ? SET_FLAGS : 0;
995
996 CHECK_ERROR();
997 CHECK(check_sljit_emit_op1(compiler, op, dst, dstw, src, srcw));
998 ADJUST_LOCAL_OFFSET(dst, dstw);
999 ADJUST_LOCAL_OFFSET(src, srcw);
1000
1001 op = GET_OPCODE(op);
1002 switch (op) {
1003 case SLJIT_MOV:
1004 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32)
1005 case SLJIT_MOV_U32:
1006 case SLJIT_MOV_S32:
1007 case SLJIT_MOV32:
1008 #endif
1009 case SLJIT_MOV_P:
1010 return emit_op(compiler, SLJIT_MOV, flags | WORD_DATA | MOVE_OP, dst, dstw, TMP_REG1, 0, src, srcw);
1011
1012 case SLJIT_MOV_U8:
1013 return emit_op(compiler, SLJIT_MOV_U8, flags | BYTE_DATA | MOVE_OP, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_u8)srcw : srcw);
1014
1015 case SLJIT_MOV_S8:
1016 return emit_op(compiler, SLJIT_MOV_S8, flags | BYTE_DATA | SIGNED_DATA | MOVE_OP, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_s8)srcw : srcw);
1017
1018 case SLJIT_MOV_U16:
1019 return emit_op(compiler, SLJIT_MOV_U16, flags | HALF_DATA | MOVE_OP, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_u16)srcw : srcw);
1020
1021 case SLJIT_MOV_S16:
1022 return emit_op(compiler, SLJIT_MOV_S16, flags | HALF_DATA | SIGNED_DATA | MOVE_OP, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_s16)srcw : srcw);
1023
1024 case SLJIT_NOT:
1025 case SLJIT_CLZ:
1026 return emit_op(compiler, op, flags, dst, dstw, TMP_REG1, 0, src, srcw);
1027 }
1028
1029 return SLJIT_SUCCESS;
1030 }
1031
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)1032 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_op2(struct sljit_compiler *compiler, sljit_s32 op,
1033 sljit_s32 dst, sljit_sw dstw,
1034 sljit_s32 src1, sljit_sw src1w,
1035 sljit_s32 src2, sljit_sw src2w)
1036 {
1037 sljit_u32 flags = HAS_FLAGS(op) ? SET_FLAGS : 0;
1038
1039 CHECK_ERROR();
1040 CHECK(check_sljit_emit_op2(compiler, op, 0, dst, dstw, src1, src1w, src2, src2w));
1041 ADJUST_LOCAL_OFFSET(dst, dstw);
1042 ADJUST_LOCAL_OFFSET(src1, src1w);
1043 ADJUST_LOCAL_OFFSET(src2, src2w);
1044
1045 op = GET_OPCODE(op);
1046 switch (op) {
1047 case SLJIT_ADD:
1048 case SLJIT_ADDC:
1049 case SLJIT_MUL:
1050 case SLJIT_AND:
1051 case SLJIT_OR:
1052 case SLJIT_XOR:
1053 return emit_op(compiler, op, flags | CUMULATIVE_OP | IMM_OP, dst, dstw, src1, src1w, src2, src2w);
1054
1055 case SLJIT_SUB:
1056 case SLJIT_SUBC:
1057 return emit_op(compiler, op, flags | IMM_OP, dst, dstw, src1, src1w, src2, src2w);
1058
1059 case SLJIT_SHL:
1060 case SLJIT_LSHR:
1061 case SLJIT_ASHR:
1062 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32)
1063 if (src2 & SLJIT_IMM)
1064 src2w &= 0x1f;
1065 #else
1066 SLJIT_UNREACHABLE();
1067 #endif
1068 return emit_op(compiler, op, flags | IMM_OP, dst, dstw, src1, src1w, src2, src2w);
1069 }
1070
1071 return SLJIT_SUCCESS;
1072 }
1073
sljit_emit_op2u(struct sljit_compiler * compiler,sljit_s32 op,sljit_s32 src1,sljit_sw src1w,sljit_s32 src2,sljit_sw src2w)1074 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_op2u(struct sljit_compiler *compiler, sljit_s32 op,
1075 sljit_s32 src1, sljit_sw src1w,
1076 sljit_s32 src2, sljit_sw src2w)
1077 {
1078 CHECK_ERROR();
1079 CHECK(check_sljit_emit_op2(compiler, op, 1, 0, 0, src1, src1w, src2, src2w));
1080
1081 #if (defined SLJIT_VERBOSE && SLJIT_VERBOSE) \
1082 || (defined SLJIT_ARGUMENT_CHECKS && SLJIT_ARGUMENT_CHECKS)
1083 compiler->skip_checks = 1;
1084 #endif
1085 return sljit_emit_op2(compiler, op, TMP_REG2, 0, src1, src1w, src2, src2w);
1086 }
1087
sljit_emit_op_src(struct sljit_compiler * compiler,sljit_s32 op,sljit_s32 src,sljit_sw srcw)1088 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_op_src(struct sljit_compiler *compiler, sljit_s32 op,
1089 sljit_s32 src, sljit_sw srcw)
1090 {
1091 CHECK_ERROR();
1092 CHECK(check_sljit_emit_op_src(compiler, op, src, srcw));
1093 ADJUST_LOCAL_OFFSET(src, srcw);
1094
1095 switch (op) {
1096 case SLJIT_FAST_RETURN:
1097 if (FAST_IS_REG(src))
1098 FAIL_IF(push_inst(compiler, OR | D(TMP_LINK) | S1(0) | S2(src), DR(TMP_LINK)));
1099 else
1100 FAIL_IF(emit_op_mem(compiler, WORD_DATA | LOAD_DATA, TMP_LINK, src, srcw));
1101
1102 FAIL_IF(push_inst(compiler, JMPL | D(0) | S1(TMP_LINK) | IMM(8), UNMOVABLE_INS));
1103 return push_inst(compiler, NOP, UNMOVABLE_INS);
1104 case SLJIT_SKIP_FRAMES_BEFORE_FAST_RETURN:
1105 case SLJIT_PREFETCH_L1:
1106 case SLJIT_PREFETCH_L2:
1107 case SLJIT_PREFETCH_L3:
1108 case SLJIT_PREFETCH_ONCE:
1109 return SLJIT_SUCCESS;
1110 }
1111
1112 return SLJIT_SUCCESS;
1113 }
1114
sljit_get_register_index(sljit_s32 reg)1115 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_get_register_index(sljit_s32 reg)
1116 {
1117 CHECK_REG_INDEX(check_sljit_get_register_index(reg));
1118 return reg_map[reg];
1119 }
1120
sljit_get_float_register_index(sljit_s32 reg)1121 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_get_float_register_index(sljit_s32 reg)
1122 {
1123 CHECK_REG_INDEX(check_sljit_get_float_register_index(reg));
1124 return freg_map[reg];
1125 }
1126
sljit_emit_op_custom(struct sljit_compiler * compiler,void * instruction,sljit_u32 size)1127 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_op_custom(struct sljit_compiler *compiler,
1128 void *instruction, sljit_u32 size)
1129 {
1130 CHECK_ERROR();
1131 CHECK(check_sljit_emit_op_custom(compiler, instruction, size));
1132
1133 return push_inst(compiler, *(sljit_ins*)instruction, UNMOVABLE_INS);
1134 }
1135
1136 /* --------------------------------------------------------------------- */
1137 /* Floating point operators */
1138 /* --------------------------------------------------------------------- */
1139
1140 #define FLOAT_DATA(op) ((sljit_ins)DOUBLE_DATA | (((sljit_ins)(op) & SLJIT_32) >> 7))
1141 #define SELECT_FOP(op, single, double) ((op & SLJIT_32) ? single : double)
1142 #define FLOAT_TMP_MEM_OFFSET (22 * sizeof(sljit_sw))
1143
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)1144 static SLJIT_INLINE sljit_s32 sljit_emit_fop1_conv_sw_from_f64(struct sljit_compiler *compiler, sljit_s32 op,
1145 sljit_s32 dst, sljit_sw dstw,
1146 sljit_s32 src, sljit_sw srcw)
1147 {
1148 if (src & SLJIT_MEM) {
1149 FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG1, src, srcw, dst, dstw));
1150 src = TMP_FREG1;
1151 }
1152
1153 FAIL_IF(push_inst(compiler, SELECT_FOP(op, FSTOI, FDTOI) | FD(TMP_FREG1) | FS2(src), MOVABLE_INS));
1154
1155 if (FAST_IS_REG(dst)) {
1156 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));
1157 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);
1158 }
1159
1160 /* Store the integer value from a VFP register. */
1161 return emit_op_mem2(compiler, SINGLE_DATA, TMP_FREG1, dst, dstw, 0, 0);
1162 }
1163
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)1164 static SLJIT_INLINE sljit_s32 sljit_emit_fop1_conv_f64_from_sw(struct sljit_compiler *compiler, sljit_s32 op,
1165 sljit_s32 dst, sljit_sw dstw,
1166 sljit_s32 src, sljit_sw srcw)
1167 {
1168 sljit_s32 dst_r = FAST_IS_REG(dst) ? dst : TMP_FREG1;
1169
1170 if (src & SLJIT_IMM) {
1171 #if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64)
1172 if (GET_OPCODE(op) == SLJIT_CONV_F64_FROM_S32)
1173 srcw = (sljit_s32)srcw;
1174 #endif
1175 FAIL_IF(load_immediate(compiler, TMP_REG1, srcw));
1176 src = TMP_REG1;
1177 srcw = 0;
1178 }
1179
1180 if (FAST_IS_REG(src)) {
1181 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));
1182 src = SLJIT_MEM1(SLJIT_SP);
1183 srcw = FLOAT_TMP_MEM_OFFSET;
1184 }
1185
1186 FAIL_IF(emit_op_mem2(compiler, SINGLE_DATA | LOAD_DATA, TMP_FREG1, src, srcw, dst, dstw));
1187 FAIL_IF(push_inst(compiler, SELECT_FOP(op, FITOS, FITOD) | FD(dst_r) | FS2(TMP_FREG1), MOVABLE_INS));
1188
1189 if (dst & SLJIT_MEM)
1190 return emit_op_mem2(compiler, FLOAT_DATA(op), TMP_FREG1, dst, dstw, 0, 0);
1191 return SLJIT_SUCCESS;
1192 }
1193
sljit_emit_fop1_cmp(struct sljit_compiler * compiler,sljit_s32 op,sljit_s32 src1,sljit_sw src1w,sljit_s32 src2,sljit_sw src2w)1194 static SLJIT_INLINE sljit_s32 sljit_emit_fop1_cmp(struct sljit_compiler *compiler, sljit_s32 op,
1195 sljit_s32 src1, sljit_sw src1w,
1196 sljit_s32 src2, sljit_sw src2w)
1197 {
1198 if (src1 & SLJIT_MEM) {
1199 FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG1, src1, src1w, src2, src2w));
1200 src1 = TMP_FREG1;
1201 }
1202
1203 if (src2 & SLJIT_MEM) {
1204 FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG2, src2, src2w, 0, 0));
1205 src2 = TMP_FREG2;
1206 }
1207
1208 return push_inst(compiler, SELECT_FOP(op, FCMPS, FCMPD) | FS1(src1) | FS2(src2), FCC_IS_SET | MOVABLE_INS);
1209 }
1210
sljit_emit_fop1(struct sljit_compiler * compiler,sljit_s32 op,sljit_s32 dst,sljit_sw dstw,sljit_s32 src,sljit_sw srcw)1211 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_fop1(struct sljit_compiler *compiler, sljit_s32 op,
1212 sljit_s32 dst, sljit_sw dstw,
1213 sljit_s32 src, sljit_sw srcw)
1214 {
1215 sljit_s32 dst_r;
1216
1217 CHECK_ERROR();
1218 compiler->cache_arg = 0;
1219 compiler->cache_argw = 0;
1220
1221 SLJIT_COMPILE_ASSERT((SLJIT_32 == 0x100) && !(DOUBLE_DATA & 0x2), float_transfer_bit_error);
1222 SELECT_FOP1_OPERATION_WITH_CHECKS(compiler, op, dst, dstw, src, srcw);
1223
1224 if (GET_OPCODE(op) == SLJIT_CONV_F64_FROM_F32)
1225 op ^= SLJIT_32;
1226
1227 dst_r = FAST_IS_REG(dst) ? dst : TMP_FREG1;
1228
1229 if (src & SLJIT_MEM) {
1230 FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op) | LOAD_DATA, dst_r, src, srcw, dst, dstw));
1231 src = dst_r;
1232 }
1233
1234 switch (GET_OPCODE(op)) {
1235 case SLJIT_MOV_F64:
1236 if (src != dst_r) {
1237 if (dst_r != TMP_FREG1) {
1238 FAIL_IF(push_inst(compiler, FMOVS | FD(dst_r) | FS2(src), MOVABLE_INS));
1239 if (!(op & SLJIT_32))
1240 FAIL_IF(push_inst(compiler, FMOVS | FDN(dst_r) | FS2N(src), MOVABLE_INS));
1241 }
1242 else
1243 dst_r = src;
1244 }
1245 break;
1246 case SLJIT_NEG_F64:
1247 FAIL_IF(push_inst(compiler, FNEGS | FD(dst_r) | FS2(src), MOVABLE_INS));
1248 if (dst_r != src && !(op & SLJIT_32))
1249 FAIL_IF(push_inst(compiler, FMOVS | FDN(dst_r) | FS2N(src), MOVABLE_INS));
1250 break;
1251 case SLJIT_ABS_F64:
1252 FAIL_IF(push_inst(compiler, FABSS | FD(dst_r) | FS2(src), MOVABLE_INS));
1253 if (dst_r != src && !(op & SLJIT_32))
1254 FAIL_IF(push_inst(compiler, FMOVS | FDN(dst_r) | FS2N(src), MOVABLE_INS));
1255 break;
1256 case SLJIT_CONV_F64_FROM_F32:
1257 FAIL_IF(push_inst(compiler, SELECT_FOP(op, FSTOD, FDTOS) | FD(dst_r) | FS2(src), MOVABLE_INS));
1258 op ^= SLJIT_32;
1259 break;
1260 }
1261
1262 if (dst & SLJIT_MEM)
1263 FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op), dst_r, dst, dstw, 0, 0));
1264 return SLJIT_SUCCESS;
1265 }
1266
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)1267 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_fop2(struct sljit_compiler *compiler, sljit_s32 op,
1268 sljit_s32 dst, sljit_sw dstw,
1269 sljit_s32 src1, sljit_sw src1w,
1270 sljit_s32 src2, sljit_sw src2w)
1271 {
1272 sljit_s32 dst_r, flags = 0;
1273
1274 CHECK_ERROR();
1275 CHECK(check_sljit_emit_fop2(compiler, op, dst, dstw, src1, src1w, src2, src2w));
1276 ADJUST_LOCAL_OFFSET(dst, dstw);
1277 ADJUST_LOCAL_OFFSET(src1, src1w);
1278 ADJUST_LOCAL_OFFSET(src2, src2w);
1279
1280 compiler->cache_arg = 0;
1281 compiler->cache_argw = 0;
1282
1283 dst_r = FAST_IS_REG(dst) ? dst : TMP_FREG2;
1284
1285 if (src1 & SLJIT_MEM) {
1286 if (getput_arg_fast(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG1, src1, src1w)) {
1287 FAIL_IF(compiler->error);
1288 src1 = TMP_FREG1;
1289 } else
1290 flags |= SLOW_SRC1;
1291 }
1292
1293 if (src2 & SLJIT_MEM) {
1294 if (getput_arg_fast(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG2, src2, src2w)) {
1295 FAIL_IF(compiler->error);
1296 src2 = TMP_FREG2;
1297 } else
1298 flags |= SLOW_SRC2;
1299 }
1300
1301 if ((flags & (SLOW_SRC1 | SLOW_SRC2)) == (SLOW_SRC1 | SLOW_SRC2)) {
1302 if (!can_cache(src1, src1w, src2, src2w) && can_cache(src1, src1w, dst, dstw)) {
1303 FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG2, src2, src2w, src1, src1w));
1304 FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG1, src1, src1w, dst, dstw));
1305 }
1306 else {
1307 FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG1, src1, src1w, src2, src2w));
1308 FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG2, src2, src2w, dst, dstw));
1309 }
1310 }
1311 else if (flags & SLOW_SRC1)
1312 FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG1, src1, src1w, dst, dstw));
1313 else if (flags & SLOW_SRC2)
1314 FAIL_IF(getput_arg(compiler, FLOAT_DATA(op) | LOAD_DATA, TMP_FREG2, src2, src2w, dst, dstw));
1315
1316 if (flags & SLOW_SRC1)
1317 src1 = TMP_FREG1;
1318 if (flags & SLOW_SRC2)
1319 src2 = TMP_FREG2;
1320
1321 switch (GET_OPCODE(op)) {
1322 case SLJIT_ADD_F64:
1323 FAIL_IF(push_inst(compiler, SELECT_FOP(op, FADDS, FADDD) | FD(dst_r) | FS1(src1) | FS2(src2), MOVABLE_INS));
1324 break;
1325
1326 case SLJIT_SUB_F64:
1327 FAIL_IF(push_inst(compiler, SELECT_FOP(op, FSUBS, FSUBD) | FD(dst_r) | FS1(src1) | FS2(src2), MOVABLE_INS));
1328 break;
1329
1330 case SLJIT_MUL_F64:
1331 FAIL_IF(push_inst(compiler, SELECT_FOP(op, FMULS, FMULD) | FD(dst_r) | FS1(src1) | FS2(src2), MOVABLE_INS));
1332 break;
1333
1334 case SLJIT_DIV_F64:
1335 FAIL_IF(push_inst(compiler, SELECT_FOP(op, FDIVS, FDIVD) | FD(dst_r) | FS1(src1) | FS2(src2), MOVABLE_INS));
1336 break;
1337 }
1338
1339 if (dst_r == TMP_FREG2)
1340 FAIL_IF(emit_op_mem2(compiler, FLOAT_DATA(op), TMP_FREG2, dst, dstw, 0, 0));
1341
1342 return SLJIT_SUCCESS;
1343 }
1344
1345 #undef FLOAT_DATA
1346 #undef SELECT_FOP
1347
1348 /* --------------------------------------------------------------------- */
1349 /* Other instructions */
1350 /* --------------------------------------------------------------------- */
1351
sljit_emit_fast_enter(struct sljit_compiler * compiler,sljit_s32 dst,sljit_sw dstw)1352 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_fast_enter(struct sljit_compiler *compiler, sljit_s32 dst, sljit_sw dstw)
1353 {
1354 CHECK_ERROR();
1355 CHECK(check_sljit_emit_fast_enter(compiler, dst, dstw));
1356 ADJUST_LOCAL_OFFSET(dst, dstw);
1357
1358 if (FAST_IS_REG(dst))
1359 return push_inst(compiler, OR | D(dst) | S1(0) | S2(TMP_LINK), UNMOVABLE_INS);
1360
1361 /* Memory. */
1362 FAIL_IF(emit_op_mem(compiler, WORD_DATA, TMP_LINK, dst, dstw));
1363 compiler->delay_slot = UNMOVABLE_INS;
1364 return SLJIT_SUCCESS;
1365 }
1366
1367 /* --------------------------------------------------------------------- */
1368 /* Conditional instructions */
1369 /* --------------------------------------------------------------------- */
1370
sljit_emit_label(struct sljit_compiler * compiler)1371 SLJIT_API_FUNC_ATTRIBUTE struct sljit_label* sljit_emit_label(struct sljit_compiler *compiler)
1372 {
1373 struct sljit_label *label;
1374
1375 CHECK_ERROR_PTR();
1376 CHECK_PTR(check_sljit_emit_label(compiler));
1377
1378 if (compiler->last_label && compiler->last_label->size == compiler->size)
1379 return compiler->last_label;
1380
1381 label = (struct sljit_label*)ensure_abuf(compiler, sizeof(struct sljit_label));
1382 PTR_FAIL_IF(!label);
1383 set_label(label, compiler);
1384 compiler->delay_slot = UNMOVABLE_INS;
1385 return label;
1386 }
1387
get_cc(struct sljit_compiler * compiler,sljit_s32 type)1388 static sljit_ins get_cc(struct sljit_compiler *compiler, sljit_s32 type)
1389 {
1390 switch (type) {
1391 case SLJIT_EQUAL:
1392 case SLJIT_NOT_EQUAL_F64: /* Unordered. */
1393 return DA(0x1);
1394
1395 case SLJIT_NOT_EQUAL:
1396 case SLJIT_EQUAL_F64:
1397 return DA(0x9);
1398
1399 case SLJIT_LESS:
1400 case SLJIT_GREATER_F64: /* Unordered. */
1401 case SLJIT_CARRY:
1402 return DA(0x5);
1403
1404 case SLJIT_GREATER_EQUAL:
1405 case SLJIT_LESS_EQUAL_F64:
1406 case SLJIT_NOT_CARRY:
1407 return DA(0xd);
1408
1409 case SLJIT_GREATER:
1410 case SLJIT_GREATER_EQUAL_F64: /* Unordered. */
1411 return DA(0xc);
1412
1413 case SLJIT_LESS_EQUAL:
1414 case SLJIT_LESS_F64:
1415 return DA(0x4);
1416
1417 case SLJIT_SIG_LESS:
1418 return DA(0x3);
1419
1420 case SLJIT_SIG_GREATER_EQUAL:
1421 return DA(0xb);
1422
1423 case SLJIT_SIG_GREATER:
1424 return DA(0xa);
1425
1426 case SLJIT_SIG_LESS_EQUAL:
1427 return DA(0x2);
1428
1429 case SLJIT_OVERFLOW:
1430 if (!(compiler->status_flags_state & (SLJIT_CURRENT_FLAGS_ADD | SLJIT_CURRENT_FLAGS_SUB)))
1431 return DA(0x9);
1432 /* fallthrough */
1433
1434 case SLJIT_UNORDERED_F64:
1435 return DA(0x7);
1436
1437 case SLJIT_NOT_OVERFLOW:
1438 if (!(compiler->status_flags_state & (SLJIT_CURRENT_FLAGS_ADD | SLJIT_CURRENT_FLAGS_SUB)))
1439 return DA(0x1);
1440 /* fallthrough */
1441
1442 case SLJIT_ORDERED_F64:
1443 return DA(0xf);
1444
1445 default:
1446 SLJIT_UNREACHABLE();
1447 return DA(0x8);
1448 }
1449 }
1450
sljit_emit_jump(struct sljit_compiler * compiler,sljit_s32 type)1451 SLJIT_API_FUNC_ATTRIBUTE struct sljit_jump* sljit_emit_jump(struct sljit_compiler *compiler, sljit_s32 type)
1452 {
1453 struct sljit_jump *jump;
1454
1455 CHECK_ERROR_PTR();
1456 CHECK_PTR(check_sljit_emit_jump(compiler, type));
1457
1458 jump = (struct sljit_jump*)ensure_abuf(compiler, sizeof(struct sljit_jump));
1459 PTR_FAIL_IF(!jump);
1460 set_jump(jump, compiler, type & SLJIT_REWRITABLE_JUMP);
1461 type &= 0xff;
1462
1463 if (type < SLJIT_EQUAL_F64) {
1464 jump->flags |= IS_COND;
1465 if (((compiler->delay_slot & DST_INS_MASK) != UNMOVABLE_INS) && !(compiler->delay_slot & ICC_IS_SET))
1466 jump->flags |= IS_MOVABLE;
1467 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32)
1468 PTR_FAIL_IF(push_inst(compiler, BICC | get_cc(compiler, type ^ 1) | 5, UNMOVABLE_INS));
1469 #else
1470 #error "Implementation required"
1471 #endif
1472 }
1473 else if (type < SLJIT_JUMP) {
1474 jump->flags |= IS_COND;
1475 if (((compiler->delay_slot & DST_INS_MASK) != UNMOVABLE_INS) && !(compiler->delay_slot & FCC_IS_SET))
1476 jump->flags |= IS_MOVABLE;
1477 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32)
1478 PTR_FAIL_IF(push_inst(compiler, FBFCC | get_cc(compiler, type ^ 1) | 5, UNMOVABLE_INS));
1479 #else
1480 #error "Implementation required"
1481 #endif
1482 }
1483 else {
1484 if ((compiler->delay_slot & DST_INS_MASK) != UNMOVABLE_INS)
1485 jump->flags |= IS_MOVABLE;
1486 if (type >= SLJIT_FAST_CALL)
1487 jump->flags |= IS_CALL;
1488 }
1489
1490 PTR_FAIL_IF(emit_const(compiler, TMP_REG1, 0));
1491 PTR_FAIL_IF(push_inst(compiler, JMPL | D(type >= SLJIT_FAST_CALL ? TMP_LINK : 0) | S1(TMP_REG1) | IMM(0), UNMOVABLE_INS));
1492 jump->addr = compiler->size;
1493 PTR_FAIL_IF(push_inst(compiler, NOP, UNMOVABLE_INS));
1494
1495 return jump;
1496 }
1497
sljit_emit_call(struct sljit_compiler * compiler,sljit_s32 type,sljit_s32 arg_types)1498 SLJIT_API_FUNC_ATTRIBUTE struct sljit_jump* sljit_emit_call(struct sljit_compiler *compiler, sljit_s32 type,
1499 sljit_s32 arg_types)
1500 {
1501 CHECK_ERROR_PTR();
1502 CHECK_PTR(check_sljit_emit_call(compiler, type, arg_types));
1503
1504 PTR_FAIL_IF(call_with_args(compiler, arg_types, NULL));
1505
1506 #if (defined SLJIT_VERBOSE && SLJIT_VERBOSE) \
1507 || (defined SLJIT_ARGUMENT_CHECKS && SLJIT_ARGUMENT_CHECKS)
1508 compiler->skip_checks = 1;
1509 #endif
1510
1511 return sljit_emit_jump(compiler, type);
1512 }
1513
sljit_emit_ijump(struct sljit_compiler * compiler,sljit_s32 type,sljit_s32 src,sljit_sw srcw)1514 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_ijump(struct sljit_compiler *compiler, sljit_s32 type, sljit_s32 src, sljit_sw srcw)
1515 {
1516 struct sljit_jump *jump = NULL;
1517 sljit_s32 src_r;
1518
1519 CHECK_ERROR();
1520 CHECK(check_sljit_emit_ijump(compiler, type, src, srcw));
1521 ADJUST_LOCAL_OFFSET(src, srcw);
1522
1523 if (FAST_IS_REG(src))
1524 src_r = src;
1525 else if (src & SLJIT_IMM) {
1526 jump = (struct sljit_jump*)ensure_abuf(compiler, sizeof(struct sljit_jump));
1527 FAIL_IF(!jump);
1528 set_jump(jump, compiler, JUMP_ADDR);
1529 jump->u.target = (sljit_uw)srcw;
1530
1531 if ((compiler->delay_slot & DST_INS_MASK) != UNMOVABLE_INS)
1532 jump->flags |= IS_MOVABLE;
1533 if (type >= SLJIT_FAST_CALL)
1534 jump->flags |= IS_CALL;
1535
1536 FAIL_IF(emit_const(compiler, TMP_REG1, 0));
1537 src_r = TMP_REG1;
1538 }
1539 else {
1540 FAIL_IF(emit_op_mem(compiler, WORD_DATA | LOAD_DATA, TMP_REG1, src, srcw));
1541 src_r = TMP_REG1;
1542 }
1543
1544 FAIL_IF(push_inst(compiler, JMPL | D(type >= SLJIT_FAST_CALL ? TMP_LINK : 0) | S1(src_r) | IMM(0), UNMOVABLE_INS));
1545 if (jump)
1546 jump->addr = compiler->size;
1547 return push_inst(compiler, NOP, UNMOVABLE_INS);
1548 }
1549
sljit_emit_icall(struct sljit_compiler * compiler,sljit_s32 type,sljit_s32 arg_types,sljit_s32 src,sljit_sw srcw)1550 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_icall(struct sljit_compiler *compiler, sljit_s32 type,
1551 sljit_s32 arg_types,
1552 sljit_s32 src, sljit_sw srcw)
1553 {
1554 CHECK_ERROR();
1555 CHECK(check_sljit_emit_icall(compiler, type, arg_types, src, srcw));
1556
1557 if (src & SLJIT_MEM) {
1558 ADJUST_LOCAL_OFFSET(src, srcw);
1559 FAIL_IF(emit_op_mem(compiler, WORD_DATA | LOAD_DATA, TMP_REG1, src, srcw));
1560 src = TMP_REG1;
1561 }
1562
1563 FAIL_IF(call_with_args(compiler, arg_types, &src));
1564
1565 #if (defined SLJIT_VERBOSE && SLJIT_VERBOSE) \
1566 || (defined SLJIT_ARGUMENT_CHECKS && SLJIT_ARGUMENT_CHECKS)
1567 compiler->skip_checks = 1;
1568 #endif
1569
1570 return sljit_emit_ijump(compiler, type, src, srcw);
1571 }
1572
sljit_emit_op_flags(struct sljit_compiler * compiler,sljit_s32 op,sljit_s32 dst,sljit_sw dstw,sljit_s32 type)1573 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_op_flags(struct sljit_compiler *compiler, sljit_s32 op,
1574 sljit_s32 dst, sljit_sw dstw,
1575 sljit_s32 type)
1576 {
1577 sljit_s32 reg;
1578 sljit_u32 flags = HAS_FLAGS(op) ? SET_FLAGS : 0;
1579
1580 CHECK_ERROR();
1581 CHECK(check_sljit_emit_op_flags(compiler, op, dst, dstw, type));
1582 ADJUST_LOCAL_OFFSET(dst, dstw);
1583
1584 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32)
1585 op = GET_OPCODE(op);
1586 reg = (op < SLJIT_ADD && FAST_IS_REG(dst)) ? dst : TMP_REG2;
1587
1588 compiler->cache_arg = 0;
1589 compiler->cache_argw = 0;
1590
1591 if (op >= SLJIT_ADD && (dst & SLJIT_MEM))
1592 FAIL_IF(emit_op_mem2(compiler, WORD_DATA | LOAD_DATA, TMP_REG1, dst, dstw, dst, dstw));
1593
1594 type &= 0xff;
1595 if (type < SLJIT_EQUAL_F64)
1596 FAIL_IF(push_inst(compiler, BICC | get_cc(compiler, type) | 3, UNMOVABLE_INS));
1597 else
1598 FAIL_IF(push_inst(compiler, FBFCC | get_cc(compiler, type) | 3, UNMOVABLE_INS));
1599
1600 FAIL_IF(push_inst(compiler, OR | D(reg) | S1(0) | IMM(1), UNMOVABLE_INS));
1601 FAIL_IF(push_inst(compiler, OR | D(reg) | S1(0) | IMM(0), UNMOVABLE_INS));
1602
1603 if (op >= SLJIT_ADD) {
1604 flags |= CUMULATIVE_OP | IMM_OP | ALT_KEEP_CACHE;
1605 if (dst & SLJIT_MEM)
1606 return emit_op(compiler, op, flags, dst, dstw, TMP_REG1, 0, TMP_REG2, 0);
1607 return emit_op(compiler, op, flags, dst, 0, dst, 0, TMP_REG2, 0);
1608 }
1609
1610 if (!(dst & SLJIT_MEM))
1611 return SLJIT_SUCCESS;
1612
1613 return emit_op_mem(compiler, WORD_DATA, TMP_REG2, dst, dstw);
1614 #else
1615 #error "Implementation required"
1616 #endif
1617 }
1618
sljit_emit_cmov(struct sljit_compiler * compiler,sljit_s32 type,sljit_s32 dst_reg,sljit_s32 src,sljit_sw srcw)1619 SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_cmov(struct sljit_compiler *compiler, sljit_s32 type,
1620 sljit_s32 dst_reg,
1621 sljit_s32 src, sljit_sw srcw)
1622 {
1623 CHECK_ERROR();
1624 CHECK(check_sljit_emit_cmov(compiler, type, dst_reg, src, srcw));
1625
1626 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32)
1627 return sljit_emit_cmov_generic(compiler, type, dst_reg, src, srcw);;
1628 #else
1629 #error "Implementation required"
1630 #endif
1631 }
1632
sljit_emit_const(struct sljit_compiler * compiler,sljit_s32 dst,sljit_sw dstw,sljit_sw init_value)1633 SLJIT_API_FUNC_ATTRIBUTE struct sljit_const* sljit_emit_const(struct sljit_compiler *compiler, sljit_s32 dst, sljit_sw dstw, sljit_sw init_value)
1634 {
1635 struct sljit_const *const_;
1636 sljit_s32 dst_r;
1637
1638 CHECK_ERROR_PTR();
1639 CHECK_PTR(check_sljit_emit_const(compiler, dst, dstw, init_value));
1640 ADJUST_LOCAL_OFFSET(dst, dstw);
1641
1642 const_ = (struct sljit_const*)ensure_abuf(compiler, sizeof(struct sljit_const));
1643 PTR_FAIL_IF(!const_);
1644 set_const(const_, compiler);
1645
1646 dst_r = FAST_IS_REG(dst) ? dst : TMP_REG2;
1647 PTR_FAIL_IF(emit_const(compiler, dst_r, init_value));
1648
1649 if (dst & SLJIT_MEM)
1650 PTR_FAIL_IF(emit_op_mem(compiler, WORD_DATA, TMP_REG2, dst, dstw));
1651 return const_;
1652 }
1653
sljit_emit_put_label(struct sljit_compiler * compiler,sljit_s32 dst,sljit_sw dstw)1654 SLJIT_API_FUNC_ATTRIBUTE struct sljit_put_label* sljit_emit_put_label(struct sljit_compiler *compiler, sljit_s32 dst, sljit_sw dstw)
1655 {
1656 struct sljit_put_label *put_label;
1657 sljit_s32 dst_r;
1658
1659 CHECK_ERROR_PTR();
1660 CHECK_PTR(check_sljit_emit_put_label(compiler, dst, dstw));
1661 ADJUST_LOCAL_OFFSET(dst, dstw);
1662
1663 put_label = (struct sljit_put_label*)ensure_abuf(compiler, sizeof(struct sljit_put_label));
1664 PTR_FAIL_IF(!put_label);
1665 set_put_label(put_label, compiler, 0);
1666
1667 dst_r = FAST_IS_REG(dst) ? dst : TMP_REG2;
1668 PTR_FAIL_IF(emit_const(compiler, dst_r, 0));
1669
1670 if (dst & SLJIT_MEM)
1671 PTR_FAIL_IF(emit_op_mem(compiler, WORD_DATA, TMP_REG2, dst, dstw));
1672 return put_label;
1673 }
1674
