1: /*
2: * Stack-less Just-In-Time compiler
3: *
4: * Copyright 2009-2012 Zoltan Herczeg (hzmester@freemail.hu). All rights reserved.
5: *
6: * Redistribution and use in source and binary forms, with or without modification, are
7: * permitted provided that the following conditions are met:
8: *
9: * 1. Redistributions of source code must retain the above copyright notice, this list of
10: * conditions and the following disclaimer.
11: *
12: * 2. Redistributions in binary form must reproduce the above copyright notice, this list
13: * of conditions and the following disclaimer in the documentation and/or other materials
14: * provided with the distribution.
15: *
16: * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) AND CONTRIBUTORS ``AS IS'' AND ANY
17: * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18: * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
19: * SHALL THE COPYRIGHT HOLDER(S) OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20: * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
21: * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
22: * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
23: * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
24: * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25: */
26:
27: SLJIT_API_FUNC_ATTRIBUTE SLJIT_CONST char* sljit_get_platform_name()
28: {
29: return "PowerPC" SLJIT_CPUINFO;
30: }
31:
32: /* Length of an instruction word.
33: Both for ppc-32 and ppc-64. */
34: typedef sljit_ui sljit_ins;
35:
36: static void ppc_cache_flush(sljit_ins *from, sljit_ins *to)
37: {
38: while (from < to) {
39: #ifdef __GNUC__
40: asm volatile ( "icbi 0, %0" : : "r"(from) );
41: #else
42: #error "Must implement icbi"
43: #endif
44: from++;
45: }
46: }
47:
48: #define TMP_REG1 (SLJIT_NO_REGISTERS + 1)
49: #define TMP_REG2 (SLJIT_NO_REGISTERS + 2)
50: #define TMP_REG3 (SLJIT_NO_REGISTERS + 3)
51: #define ZERO_REG (SLJIT_NO_REGISTERS + 4)
52: #define REAL_STACK_PTR (SLJIT_NO_REGISTERS + 5)
53:
54: #define TMP_FREG1 (SLJIT_FLOAT_REG4 + 1)
55: #define TMP_FREG2 (SLJIT_FLOAT_REG4 + 2)
56:
57: /* --------------------------------------------------------------------- */
58: /* Instrucion forms */
59: /* --------------------------------------------------------------------- */
60: #define D(d) (reg_map[d] << 21)
61: #define S(s) (reg_map[s] << 21)
62: #define A(a) (reg_map[a] << 16)
63: #define B(b) (reg_map[b] << 11)
64: #define C(c) (reg_map[c] << 6)
65: #define FD(fd) ((fd) << 21)
66: #define FA(fa) ((fa) << 16)
67: #define FB(fb) ((fb) << 11)
68: #define FC(fc) ((fc) << 6)
69: #define IMM(imm) ((imm) & 0xffff)
70: #define CRD(d) ((d) << 21)
71:
72: /* Instruction bit sections.
73: OE and Rc flag (see ALT_SET_FLAGS). */
74: #define OERC(flags) (((flags & ALT_SET_FLAGS) >> 10) | (flags & ALT_SET_FLAGS))
75: /* Rc flag (see ALT_SET_FLAGS). */
76: #define RC(flags) ((flags & ALT_SET_FLAGS) >> 10)
77: #define HI(opcode) ((opcode) << 26)
78: #define LO(opcode) ((opcode) << 1)
79:
80: #define ADD (HI(31) | LO(266))
81: #define ADDC (HI(31) | LO(10))
82: #define ADDE (HI(31) | LO(138))
83: #define ADDI (HI(14))
84: #define ADDIC (HI(13))
85: #define ADDIS (HI(15))
86: #define ADDME (HI(31) | LO(234))
87: #define AND (HI(31) | LO(28))
88: #define ANDI (HI(28))
89: #define ANDIS (HI(29))
90: #define Bx (HI(18))
91: #define BCx (HI(16))
92: #define BCCTR (HI(19) | LO(528) | (3 << 11))
93: #define BLR (HI(19) | LO(16) | (0x14 << 21))
94: #define CNTLZD (HI(31) | LO(58))
95: #define CNTLZW (HI(31) | LO(26))
96: #define CMP (HI(31) | LO(0))
97: #define CMPI (HI(11))
98: #define CMPL (HI(31) | LO(32))
99: #define CMPLI (HI(10))
100: #define CROR (HI(19) | LO(449))
101: #define DIVD (HI(31) | LO(489))
102: #define DIVDU (HI(31) | LO(457))
103: #define DIVW (HI(31) | LO(491))
104: #define DIVWU (HI(31) | LO(459))
105: #define EXTSB (HI(31) | LO(954))
106: #define EXTSH (HI(31) | LO(922))
107: #define EXTSW (HI(31) | LO(986))
108: #define FABS (HI(63) | LO(264))
109: #define FADD (HI(63) | LO(21))
110: #define FCMPU (HI(63) | LO(0))
111: #define FDIV (HI(63) | LO(18))
112: #define FMR (HI(63) | LO(72))
113: #define FMUL (HI(63) | LO(25))
114: #define FNEG (HI(63) | LO(40))
115: #define FSUB (HI(63) | LO(20))
116: #define LD (HI(58) | 0)
117: #define LFD (HI(50))
118: #define LFDUX (HI(31) | LO(631))
119: #define LFDX (HI(31) | LO(599))
120: #define LWZ (HI(32))
121: #define MFCR (HI(31) | LO(19))
122: #define MFLR (HI(31) | LO(339) | 0x80000)
123: #define MFXER (HI(31) | LO(339) | 0x10000)
124: #define MTCTR (HI(31) | LO(467) | 0x90000)
125: #define MTLR (HI(31) | LO(467) | 0x80000)
126: #define MTXER (HI(31) | LO(467) | 0x10000)
127: #define MULHD (HI(31) | LO(73))
128: #define MULHDU (HI(31) | LO(9))
129: #define MULHW (HI(31) | LO(75))
130: #define MULHWU (HI(31) | LO(11))
131: #define MULLD (HI(31) | LO(233))
132: #define MULLI (HI(7))
133: #define MULLW (HI(31) | LO(235))
134: #define NEG (HI(31) | LO(104))
135: #define NOP (HI(24))
136: #define NOR (HI(31) | LO(124))
137: #define OR (HI(31) | LO(444))
138: #define ORI (HI(24))
139: #define ORIS (HI(25))
140: #define RLDICL (HI(30))
141: #define RLWINM (HI(21))
142: #define SLD (HI(31) | LO(27))
143: #define SLW (HI(31) | LO(24))
144: #define SRAD (HI(31) | LO(794))
145: #define SRADI (HI(31) | LO(413 << 1))
146: #define SRAW (HI(31) | LO(792))
147: #define SRAWI (HI(31) | LO(824))
148: #define SRD (HI(31) | LO(539))
149: #define SRW (HI(31) | LO(536))
150: #define STD (HI(62) | 0)
151: #define STDU (HI(62) | 1)
152: #define STDUX (HI(31) | LO(181))
153: #define STFD (HI(54))
154: #define STFDUX (HI(31) | LO(759))
155: #define STFDX (HI(31) | LO(727))
156: #define STW (HI(36))
157: #define STWU (HI(37))
158: #define STWUX (HI(31) | LO(183))
159: #define SUBF (HI(31) | LO(40))
160: #define SUBFC (HI(31) | LO(8))
161: #define SUBFE (HI(31) | LO(136))
162: #define SUBFIC (HI(8))
163: #define XOR (HI(31) | LO(316))
164: #define XORI (HI(26))
165: #define XORIS (HI(27))
166:
167: #define SIMM_MAX (0x7fff)
168: #define SIMM_MIN (-0x8000)
169: #define UIMM_MAX (0xffff)
170:
171: /* SLJIT_LOCALS_REG is not the real stack register, since it must
172: point to the head of the stack chain. */
173: static SLJIT_CONST sljit_ub reg_map[SLJIT_NO_REGISTERS + 6] = {
174: 0, 3, 4, 5, 6, 7, 29, 28, 27, 26, 25, 31, 8, 9, 10, 30, 1
175: };
176:
177: static int push_inst(struct sljit_compiler *compiler, sljit_ins ins)
178: {
179: sljit_ins *ptr = (sljit_ins*)ensure_buf(compiler, sizeof(sljit_ins));
180: FAIL_IF(!ptr);
181: *ptr = ins;
182: compiler->size++;
183: return SLJIT_SUCCESS;
184: }
185:
186: static SLJIT_INLINE int optimize_jump(struct sljit_jump *jump, sljit_ins *code_ptr, sljit_ins *code)
187: {
188: sljit_w diff;
189: sljit_uw target_addr;
190:
191: if (jump->flags & SLJIT_REWRITABLE_JUMP)
192: return 0;
193:
194: if (jump->flags & JUMP_ADDR)
195: target_addr = jump->u.target;
196: else {
197: SLJIT_ASSERT(jump->flags & JUMP_LABEL);
198: target_addr = (sljit_uw)(code + jump->u.label->size);
199: }
200: diff = ((sljit_w)target_addr - (sljit_w)(code_ptr)) & ~0x3l;
201:
202: if (jump->flags & UNCOND_B) {
203: if (diff <= 0x01ffffff && diff >= -0x02000000) {
204: jump->flags |= PATCH_B;
205: return 1;
206: }
207: if (target_addr <= 0x03ffffff) {
208: jump->flags |= PATCH_B | ABSOLUTE_B;
209: return 1;
210: }
211: }
212: else {
213: if (diff <= 0x7fff && diff >= -0x8000) {
214: jump->flags |= PATCH_B;
215: return 1;
216: }
217: if (target_addr <= 0xffff) {
218: jump->flags |= PATCH_B | ABSOLUTE_B;
219: return 1;
220: }
221: }
222: return 0;
223: }
224:
225: SLJIT_API_FUNC_ATTRIBUTE void* sljit_generate_code(struct sljit_compiler *compiler)
226: {
227: struct sljit_memory_fragment *buf;
228: sljit_ins *code;
229: sljit_ins *code_ptr;
230: sljit_ins *buf_ptr;
231: sljit_ins *buf_end;
232: sljit_uw word_count;
233: sljit_uw addr;
234:
235: struct sljit_label *label;
236: struct sljit_jump *jump;
237: struct sljit_const *const_;
238:
239: CHECK_ERROR_PTR();
240: check_sljit_generate_code(compiler);
241: reverse_buf(compiler);
242:
243: #if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
244: compiler->size += (compiler->size & 0x1) + (sizeof(struct sljit_function_context) / sizeof(sljit_ins));
245: #endif
246: code = (sljit_ins*)SLJIT_MALLOC_EXEC(compiler->size * sizeof(sljit_ins));
247: PTR_FAIL_WITH_EXEC_IF(code);
248: buf = compiler->buf;
249:
250: code_ptr = code;
251: word_count = 0;
252: label = compiler->labels;
253: jump = compiler->jumps;
254: const_ = compiler->consts;
255: do {
256: buf_ptr = (sljit_ins*)buf->memory;
257: buf_end = buf_ptr + (buf->used_size >> 2);
258: do {
259: *code_ptr = *buf_ptr++;
260: SLJIT_ASSERT(!label || label->size >= word_count);
261: SLJIT_ASSERT(!jump || jump->addr >= word_count);
262: SLJIT_ASSERT(!const_ || const_->addr >= word_count);
263: /* These structures are ordered by their address. */
264: if (label && label->size == word_count) {
265: /* Just recording the address. */
266: label->addr = (sljit_uw)code_ptr;
267: label->size = code_ptr - code;
268: label = label->next;
269: }
270: if (jump && jump->addr == word_count) {
271: #if (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32)
272: jump->addr = (sljit_uw)(code_ptr - 3);
273: #else
274: jump->addr = (sljit_uw)(code_ptr - 6);
275: #endif
276: if (optimize_jump(jump, code_ptr, code)) {
277: #if (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32)
278: code_ptr[-3] = code_ptr[0];
279: code_ptr -= 3;
280: #else
281: code_ptr[-6] = code_ptr[0];
282: code_ptr -= 6;
283: #endif
284: }
285: jump = jump->next;
286: }
287: if (const_ && const_->addr == word_count) {
288: /* Just recording the address. */
289: const_->addr = (sljit_uw)code_ptr;
290: const_ = const_->next;
291: }
292: code_ptr ++;
293: word_count ++;
294: } while (buf_ptr < buf_end);
295:
296: buf = buf->next;
297: } while (buf);
298:
299: if (label && label->size == word_count) {
300: label->addr = (sljit_uw)code_ptr;
301: label->size = code_ptr - code;
302: label = label->next;
303: }
304:
305: SLJIT_ASSERT(!label);
306: SLJIT_ASSERT(!jump);
307: SLJIT_ASSERT(!const_);
308: #if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
309: SLJIT_ASSERT(code_ptr - code <= (int)compiler->size - ((compiler->size & 0x1) ? 3 : 2));
310: #else
311: SLJIT_ASSERT(code_ptr - code <= (int)compiler->size);
312: #endif
313:
314: jump = compiler->jumps;
315: while (jump) {
316: do {
317: addr = (jump->flags & JUMP_LABEL) ? jump->u.label->addr : jump->u.target;
318: buf_ptr = (sljit_ins*)jump->addr;
319: if (jump->flags & PATCH_B) {
320: if (jump->flags & UNCOND_B) {
321: if (!(jump->flags & ABSOLUTE_B)) {
322: addr = addr - jump->addr;
323: SLJIT_ASSERT((sljit_w)addr <= 0x01ffffff && (sljit_w)addr >= -0x02000000);
324: *buf_ptr = Bx | (addr & 0x03fffffc) | ((*buf_ptr) & 0x1);
325: }
326: else {
327: SLJIT_ASSERT(addr <= 0x03ffffff);
328: *buf_ptr = Bx | (addr & 0x03fffffc) | 0x2 | ((*buf_ptr) & 0x1);
329: }
330: }
331: else {
332: if (!(jump->flags & ABSOLUTE_B)) {
333: addr = addr - jump->addr;
334: SLJIT_ASSERT((sljit_w)addr <= 0x7fff && (sljit_w)addr >= -0x8000);
335: *buf_ptr = BCx | (addr & 0xfffc) | ((*buf_ptr) & 0x03ff0001);
336: }
337: else {
338: addr = addr & ~0x3l;
339: SLJIT_ASSERT(addr <= 0xffff);
340: *buf_ptr = BCx | (addr & 0xfffc) | 0x2 | ((*buf_ptr) & 0x03ff0001);
341: }
342:
343: }
344: break;
345: }
346: /* Set the fields of immediate loads. */
347: #if (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32)
348: buf_ptr[0] = (buf_ptr[0] & 0xffff0000) | ((addr >> 16) & 0xffff);
349: buf_ptr[1] = (buf_ptr[1] & 0xffff0000) | (addr & 0xffff);
350: #else
351: buf_ptr[0] = (buf_ptr[0] & 0xffff0000) | ((addr >> 48) & 0xffff);
352: buf_ptr[1] = (buf_ptr[1] & 0xffff0000) | ((addr >> 32) & 0xffff);
353: buf_ptr[3] = (buf_ptr[3] & 0xffff0000) | ((addr >> 16) & 0xffff);
354: buf_ptr[4] = (buf_ptr[4] & 0xffff0000) | (addr & 0xffff);
355: #endif
356: } while (0);
357: jump = jump->next;
358: }
359:
360: SLJIT_CACHE_FLUSH(code, code_ptr);
361: compiler->error = SLJIT_ERR_COMPILED;
362: compiler->executable_size = compiler->size * sizeof(sljit_ins);
363:
364: #if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
365: if (((sljit_w)code_ptr) & 0x4)
366: code_ptr++;
367: sljit_set_function_context(NULL, (struct sljit_function_context*)code_ptr, (sljit_w)code, sljit_generate_code);
368: return code_ptr;
369: #else
370: return code;
371: #endif
372: }
373:
374: /* inp_flags: */
375:
376: /* Creates an index in data_transfer_insts array. */
377: #define WORD_DATA 0x00
378: #define BYTE_DATA 0x01
379: #define HALF_DATA 0x02
380: #define INT_DATA 0x03
381: #define SIGNED_DATA 0x04
382: #define LOAD_DATA 0x08
383: #define WRITE_BACK 0x10
384: #define INDEXED 0x20
385:
386: #define MEM_MASK 0x3f
387:
388: /* Other inp_flags. */
389:
390: #define ARG_TEST 0x000100
391: /* Integer opertion and set flags -> requires exts on 64 bit systems. */
392: #define ALT_SIGN_EXT 0x000200
393: /* This flag affects the RC() and OERC() macros. */
394: #define ALT_SET_FLAGS 0x000400
395: #define ALT_FORM1 0x010000
396: #define ALT_FORM2 0x020000
397: #define ALT_FORM3 0x040000
398: #define ALT_FORM4 0x080000
399: #define ALT_FORM5 0x100000
400: #define ALT_FORM6 0x200000
401:
402: /* Source and destination is register. */
403: #define REG_DEST 0x000001
404: #define REG1_SOURCE 0x000002
405: #define REG2_SOURCE 0x000004
406: /* getput_arg_fast returned true. */
407: #define FAST_DEST 0x000008
408: /* Multiple instructions are required. */
409: #define SLOW_DEST 0x000010
410: /*
411: ALT_SIGN_EXT 0x000200
412: ALT_SET_FLAGS 0x000400
413: ALT_FORM1 0x010000
414: ...
415: ALT_FORM6 0x200000 */
416:
417: #if (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32)
418: #include "sljitNativePPC_32.c"
419: #else
420: #include "sljitNativePPC_64.c"
421: #endif
422:
423: #if (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32)
424: #define STACK_STORE STW
425: #define STACK_LOAD LWZ
426: #else
427: #define STACK_STORE STD
428: #define STACK_LOAD LD
429: #endif
430:
431: static int emit_op(struct sljit_compiler *compiler, int op, int inp_flags,
432: int dst, sljit_w dstw,
433: int src1, sljit_w src1w,
434: int src2, sljit_w src2w);
435:
436: SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_enter(struct sljit_compiler *compiler, int args, int temporaries, int saveds, int local_size)
437: {
438: CHECK_ERROR();
439: check_sljit_emit_enter(compiler, args, temporaries, saveds, local_size);
440:
441: compiler->temporaries = temporaries;
442: compiler->saveds = saveds;
443: compiler->has_locals = local_size > 0;
444:
445: FAIL_IF(push_inst(compiler, MFLR | D(0)));
446: if (compiler->has_locals)
447: FAIL_IF(push_inst(compiler, STACK_STORE | S(SLJIT_LOCALS_REG) | A(REAL_STACK_PTR) | IMM(-(int)(sizeof(sljit_w))) ));
448: FAIL_IF(push_inst(compiler, STACK_STORE | S(ZERO_REG) | A(REAL_STACK_PTR) | IMM(-2 * (int)(sizeof(sljit_w))) ));
449: if (saveds >= 1)
450: FAIL_IF(push_inst(compiler, STACK_STORE | S(SLJIT_SAVED_REG1) | A(REAL_STACK_PTR) | IMM(-3 * (int)(sizeof(sljit_w))) ));
451: if (saveds >= 2)
452: FAIL_IF(push_inst(compiler, STACK_STORE | S(SLJIT_SAVED_REG2) | A(REAL_STACK_PTR) | IMM(-4 * (int)(sizeof(sljit_w))) ));
453: if (saveds >= 3)
454: FAIL_IF(push_inst(compiler, STACK_STORE | S(SLJIT_SAVED_REG3) | A(REAL_STACK_PTR) | IMM(-5 * (int)(sizeof(sljit_w))) ));
455: if (saveds >= 4)
456: FAIL_IF(push_inst(compiler, STACK_STORE | S(SLJIT_SAVED_EREG1) | A(REAL_STACK_PTR) | IMM(-6 * (int)(sizeof(sljit_w))) ));
457: if (saveds >= 5)
458: FAIL_IF(push_inst(compiler, STACK_STORE | S(SLJIT_SAVED_EREG2) | A(REAL_STACK_PTR) | IMM(-7 * (int)(sizeof(sljit_w))) ));
459: FAIL_IF(push_inst(compiler, STACK_STORE | S(0) | A(REAL_STACK_PTR) | IMM(sizeof(sljit_w)) ));
460:
461: FAIL_IF(push_inst(compiler, ADDI | D(ZERO_REG) | A(0) | 0));
462: if (args >= 1)
463: FAIL_IF(push_inst(compiler, OR | S(SLJIT_TEMPORARY_REG1) | A(SLJIT_SAVED_REG1) | B(SLJIT_TEMPORARY_REG1)));
464: if (args >= 2)
465: FAIL_IF(push_inst(compiler, OR | S(SLJIT_TEMPORARY_REG2) | A(SLJIT_SAVED_REG2) | B(SLJIT_TEMPORARY_REG2)));
466: if (args >= 3)
467: FAIL_IF(push_inst(compiler, OR | S(SLJIT_TEMPORARY_REG3) | A(SLJIT_SAVED_REG3) | B(SLJIT_TEMPORARY_REG3)));
468:
469: #if (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32)
470: compiler->local_size = (2 + saveds + 2) * sizeof(sljit_w) + local_size;
471: #else
472: compiler->local_size = (2 + saveds + 7 + 8) * sizeof(sljit_w) + local_size;
473: #endif
474: compiler->local_size = (compiler->local_size + 15) & ~0xf;
475:
476: #if (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32)
477: if (compiler->local_size <= SIMM_MAX)
478: FAIL_IF(push_inst(compiler, STWU | S(REAL_STACK_PTR) | A(REAL_STACK_PTR) | IMM(-compiler->local_size)));
479: else {
480: FAIL_IF(load_immediate(compiler, 0, -compiler->local_size));
481: FAIL_IF(push_inst(compiler, STWUX | S(REAL_STACK_PTR) | A(REAL_STACK_PTR) | B(0)));
482: }
483: if (compiler->has_locals)
484: FAIL_IF(push_inst(compiler, ADDI | D(SLJIT_LOCALS_REG) | A(REAL_STACK_PTR) | IMM(2 * sizeof(sljit_w))));
485: #else
486: if (compiler->local_size <= SIMM_MAX)
487: FAIL_IF(push_inst(compiler, STDU | S(REAL_STACK_PTR) | A(REAL_STACK_PTR) | IMM(-compiler->local_size)));
488: else {
489: FAIL_IF(load_immediate(compiler, 0, -compiler->local_size));
490: FAIL_IF(push_inst(compiler, STDUX | S(REAL_STACK_PTR) | A(REAL_STACK_PTR) | B(0)));
491: }
492: if (compiler->has_locals)
493: FAIL_IF(push_inst(compiler, ADDI | D(SLJIT_LOCALS_REG) | A(REAL_STACK_PTR) | IMM((7 + 8) * sizeof(sljit_w))));
494: #endif
495:
496: return SLJIT_SUCCESS;
497: }
498:
499: SLJIT_API_FUNC_ATTRIBUTE void sljit_set_context(struct sljit_compiler *compiler, int args, int temporaries, int saveds, int local_size)
500: {
501: CHECK_ERROR_VOID();
502: check_sljit_set_context(compiler, args, temporaries, saveds, local_size);
503:
504: compiler->temporaries = temporaries;
505: compiler->saveds = saveds;
506:
507: compiler->has_locals = local_size > 0;
508: #if (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32)
509: compiler->local_size = (2 + saveds + 2) * sizeof(sljit_w) + local_size;
510: #else
511: compiler->local_size = (2 + saveds + 7 + 8) * sizeof(sljit_w) + local_size;
512: #endif
513: compiler->local_size = (compiler->local_size + 15) & ~0xf;
514: }
515:
516: SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_return(struct sljit_compiler *compiler, int op, int src, sljit_w srcw)
517: {
518: CHECK_ERROR();
519: check_sljit_emit_return(compiler, op, src, srcw);
520:
521: FAIL_IF(emit_mov_before_return(compiler, op, src, srcw));
522:
523: if (compiler->local_size <= SIMM_MAX)
524: FAIL_IF(push_inst(compiler, ADDI | D(REAL_STACK_PTR) | A(REAL_STACK_PTR) | IMM(compiler->local_size)));
525: else {
526: FAIL_IF(load_immediate(compiler, 0, compiler->local_size));
527: FAIL_IF(push_inst(compiler, ADD | D(REAL_STACK_PTR) | A(REAL_STACK_PTR) | B(0)));
528: }
529:
530: FAIL_IF(push_inst(compiler, STACK_LOAD | D(0) | A(REAL_STACK_PTR) | IMM(sizeof(sljit_w))));
531: if (compiler->saveds >= 5)
532: FAIL_IF(push_inst(compiler, STACK_LOAD | D(SLJIT_SAVED_EREG2) | A(REAL_STACK_PTR) | IMM(-7 * (int)(sizeof(sljit_w))) ));
533: if (compiler->saveds >= 4)
534: FAIL_IF(push_inst(compiler, STACK_LOAD | D(SLJIT_SAVED_EREG1) | A(REAL_STACK_PTR) | IMM(-6 * (int)(sizeof(sljit_w))) ));
535: if (compiler->saveds >= 3)
536: FAIL_IF(push_inst(compiler, STACK_LOAD | D(SLJIT_SAVED_REG3) | A(REAL_STACK_PTR) | IMM(-5 * (int)(sizeof(sljit_w))) ));
537: if (compiler->saveds >= 2)
538: FAIL_IF(push_inst(compiler, STACK_LOAD | D(SLJIT_SAVED_REG2) | A(REAL_STACK_PTR) | IMM(-4 * (int)(sizeof(sljit_w))) ));
539: if (compiler->saveds >= 1)
540: FAIL_IF(push_inst(compiler, STACK_LOAD | D(SLJIT_SAVED_REG1) | A(REAL_STACK_PTR) | IMM(-3 * (int)(sizeof(sljit_w))) ));
541: FAIL_IF(push_inst(compiler, STACK_LOAD | D(ZERO_REG) | A(REAL_STACK_PTR) | IMM(-2 * (int)(sizeof(sljit_w))) ));
542: if (compiler->has_locals)
543: FAIL_IF(push_inst(compiler, STACK_LOAD | D(SLJIT_LOCALS_REG) | A(REAL_STACK_PTR) | IMM(-(int)(sizeof(sljit_w))) ));
544:
545: FAIL_IF(push_inst(compiler, MTLR | S(0)));
546: FAIL_IF(push_inst(compiler, BLR));
547:
548: return SLJIT_SUCCESS;
549: }
550:
551: #undef STACK_STORE
552: #undef STACK_LOAD
553:
554: /* --------------------------------------------------------------------- */
555: /* Operators */
556: /* --------------------------------------------------------------------- */
557:
558: /* i/x - immediate/indexed form
559: n/w - no write-back / write-back (1 bit)
560: s/l - store/load (1 bit)
561: u/s - signed/unsigned (1 bit)
562: w/b/h/i - word/byte/half/int allowed (2 bit)
563: It contans 32 items, but not all are different. */
564:
565: /* 64 bit only: [reg+imm] must be aligned to 4 bytes. */
566: #define ADDR_MODE2 0x10000
567: /* 64-bit only: there is no lwau instruction. */
568: #define UPDATE_REQ 0x20000
569:
570: #if (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32)
571: #define ARCH_DEPEND(a, b) a
572: #define GET_INST_CODE(inst) (inst)
573: #else
574: #define ARCH_DEPEND(a, b) b
575: #define GET_INST_CODE(index) ((inst) & ~(ADDR_MODE2 | UPDATE_REQ))
576: #endif
577:
578: static SLJIT_CONST sljit_ins data_transfer_insts[64] = {
579:
580: /* No write-back. */
581:
582: /* i n s u w */ ARCH_DEPEND(HI(36) /* stw */, HI(62) | ADDR_MODE2 | 0x0 /* std */),
583: /* i n s u b */ HI(38) /* stb */,
584: /* i n s u h */ HI(44) /* sth*/,
585: /* i n s u i */ HI(36) /* stw */,
586:
587: /* i n s s w */ ARCH_DEPEND(HI(36) /* stw */, HI(62) | ADDR_MODE2 | 0x0 /* std */),
588: /* i n s s b */ HI(38) /* stb */,
589: /* i n s s h */ HI(44) /* sth*/,
590: /* i n s s i */ HI(36) /* stw */,
591:
592: /* i n l u w */ ARCH_DEPEND(HI(32) /* lwz */, HI(58) | ADDR_MODE2 | 0x0 /* ld */),
593: /* i n l u b */ HI(34) /* lbz */,
594: /* i n l u h */ HI(40) /* lhz */,
595: /* i n l u i */ HI(32) /* lwz */,
596:
597: /* i n l s w */ ARCH_DEPEND(HI(32) /* lwz */, HI(58) | ADDR_MODE2 | 0x0 /* ld */),
598: /* i n l s b */ HI(34) /* lbz */ /* EXTS_REQ */,
599: /* i n l s h */ HI(42) /* lha */,
600: /* i n l s i */ ARCH_DEPEND(HI(32) /* lwz */, HI(58) | ADDR_MODE2 | 0x2 /* lwa */),
601:
602: /* Write-back. */
603:
604: /* i w s u w */ ARCH_DEPEND(HI(37) /* stwu */, HI(62) | ADDR_MODE2 | 0x1 /* stdu */),
605: /* i w s u b */ HI(39) /* stbu */,
606: /* i w s u h */ HI(45) /* sthu */,
607: /* i w s u i */ HI(37) /* stwu */,
608:
609: /* i w s s w */ ARCH_DEPEND(HI(37) /* stwu */, HI(62) | ADDR_MODE2 | 0x1 /* stdu */),
610: /* i w s s b */ HI(39) /* stbu */,
611: /* i w s s h */ HI(45) /* sthu */,
612: /* i w s s i */ HI(37) /* stwu */,
613:
614: /* i w l u w */ ARCH_DEPEND(HI(33) /* lwzu */, HI(58) | ADDR_MODE2 | 0x1 /* ldu */),
615: /* i w l u b */ HI(35) /* lbzu */,
616: /* i w l u h */ HI(41) /* lhzu */,
617: /* i w l u i */ HI(33) /* lwzu */,
618:
619: /* i w l s w */ ARCH_DEPEND(HI(33) /* lwzu */, HI(58) | ADDR_MODE2 | 0x1 /* ldu */),
620: /* i w l s b */ HI(35) /* lbzu */ /* EXTS_REQ */,
621: /* i w l s h */ HI(43) /* lhau */,
622: /* i w l s i */ ARCH_DEPEND(HI(33) /* lwzu */, HI(58) | ADDR_MODE2 | UPDATE_REQ | 0x2 /* lwa */),
623:
624: /* ---------- */
625: /* Indexed */
626: /* ---------- */
627:
628: /* No write-back. */
629:
630: /* x n s u w */ ARCH_DEPEND(HI(31) | LO(151) /* stwx */, HI(31) | LO(149) /* stdx */),
631: /* x n s u b */ HI(31) | LO(215) /* stbx */,
632: /* x n s u h */ HI(31) | LO(407) /* sthx */,
633: /* x n s u i */ HI(31) | LO(151) /* stwx */,
634:
635: /* x n s s w */ ARCH_DEPEND(HI(31) | LO(151) /* stwx */, HI(31) | LO(149) /* stdx */),
636: /* x n s s b */ HI(31) | LO(215) /* stbx */,
637: /* x n s s h */ HI(31) | LO(407) /* sthx */,
638: /* x n s s i */ HI(31) | LO(151) /* stwx */,
639:
640: /* x n l u w */ ARCH_DEPEND(HI(31) | LO(23) /* lwzx */, HI(31) | LO(21) /* ldx */),
641: /* x n l u b */ HI(31) | LO(87) /* lbzx */,
642: /* x n l u h */ HI(31) | LO(279) /* lhzx */,
643: /* x n l u i */ HI(31) | LO(23) /* lwzx */,
644:
645: /* x n l s w */ ARCH_DEPEND(HI(31) | LO(23) /* lwzx */, HI(31) | LO(21) /* ldx */),
646: /* x n l s b */ HI(31) | LO(87) /* lbzx */ /* EXTS_REQ */,
647: /* x n l s h */ HI(31) | LO(343) /* lhax */,
648: /* x n l s i */ ARCH_DEPEND(HI(31) | LO(23) /* lwzx */, HI(31) | LO(341) /* lwax */),
649:
650: /* Write-back. */
651:
652: /* x w s u w */ ARCH_DEPEND(HI(31) | LO(183) /* stwux */, HI(31) | LO(181) /* stdux */),
653: /* x w s u b */ HI(31) | LO(247) /* stbux */,
654: /* x w s u h */ HI(31) | LO(439) /* sthux */,
655: /* x w s u i */ HI(31) | LO(183) /* stwux */,
656:
657: /* x w s s w */ ARCH_DEPEND(HI(31) | LO(183) /* stwux */, HI(31) | LO(181) /* stdux */),
658: /* x w s s b */ HI(31) | LO(247) /* stbux */,
659: /* x w s s h */ HI(31) | LO(439) /* sthux */,
660: /* x w s s i */ HI(31) | LO(183) /* stwux */,
661:
662: /* x w l u w */ ARCH_DEPEND(HI(31) | LO(55) /* lwzux */, HI(31) | LO(53) /* ldux */),
663: /* x w l u b */ HI(31) | LO(119) /* lbzux */,
664: /* x w l u h */ HI(31) | LO(311) /* lhzux */,
665: /* x w l u i */ HI(31) | LO(55) /* lwzux */,
666:
667: /* x w l s w */ ARCH_DEPEND(HI(31) | LO(55) /* lwzux */, HI(31) | LO(53) /* ldux */),
668: /* x w l s b */ HI(31) | LO(119) /* lbzux */ /* EXTS_REQ */,
669: /* x w l s h */ HI(31) | LO(375) /* lhaux */,
670: /* x w l s i */ ARCH_DEPEND(HI(31) | LO(55) /* lwzux */, HI(31) | LO(373) /* lwaux */)
671:
672: };
673:
674: #undef ARCH_DEPEND
675:
676: /* Simple cases, (no caching is required). */
677: static int getput_arg_fast(struct sljit_compiler *compiler, int inp_flags, int reg, int arg, sljit_w argw)
678: {
679: sljit_ins inst;
680: #if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
681: int tmp_reg;
682: #endif
683:
684: SLJIT_ASSERT(arg & SLJIT_MEM);
685: if (!(arg & 0xf)) {
686: #if (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32)
687: if (argw <= SIMM_MAX && argw >= SIMM_MIN) {
688: if (inp_flags & ARG_TEST)
689: return 1;
690:
691: inst = data_transfer_insts[(inp_flags & ~WRITE_BACK) & MEM_MASK];
692: SLJIT_ASSERT(!(inst & (ADDR_MODE2 | UPDATE_REQ)));
693: push_inst(compiler, GET_INST_CODE(inst) | D(reg) | IMM(argw));
694: return -1;
695: }
696: #else
697: inst = data_transfer_insts[(inp_flags & ~WRITE_BACK) & MEM_MASK];
698: if (argw <= SIMM_MAX && argw >= SIMM_MIN &&
699: (!(inst & ADDR_MODE2) || (argw & 0x3) == 0)) {
700: if (inp_flags & ARG_TEST)
701: return 1;
702:
703: push_inst(compiler, GET_INST_CODE(inst) | D(reg) | IMM(argw));
704: return -1;
705: }
706: #endif
707: return (inp_flags & ARG_TEST) ? SLJIT_SUCCESS : 0;
708: }
709:
710: if (!(arg & 0xf0)) {
711: #if (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32)
712: if (argw <= SIMM_MAX && argw >= SIMM_MIN) {
713: if (inp_flags & ARG_TEST)
714: return 1;
715:
716: inst = data_transfer_insts[inp_flags & MEM_MASK];
717: SLJIT_ASSERT(!(inst & (ADDR_MODE2 | UPDATE_REQ)));
718: push_inst(compiler, GET_INST_CODE(inst) | D(reg) | A(arg & 0xf) | IMM(argw));
719: return -1;
720: }
721: #else
722: inst = data_transfer_insts[inp_flags & MEM_MASK];
723: if (argw <= SIMM_MAX && argw >= SIMM_MIN && (!(inst & ADDR_MODE2) || (argw & 0x3) == 0)) {
724: if (inp_flags & ARG_TEST)
725: return 1;
726:
727: if ((inp_flags & WRITE_BACK) && (inst & UPDATE_REQ)) {
728: tmp_reg = (inp_flags & LOAD_DATA) ? (arg & 0xf) : TMP_REG3;
729: if (push_inst(compiler, ADDI | D(tmp_reg) | A(arg & 0xf) | IMM(argw)))
730: return -1;
731: arg = tmp_reg | SLJIT_MEM;
732: argw = 0;
733: }
734: push_inst(compiler, GET_INST_CODE(inst) | D(reg) | A(arg & 0xf) | IMM(argw));
735: return -1;
736: }
737: #endif
738: }
739: else if (!(argw & 0x3)) {
740: if (inp_flags & ARG_TEST)
741: return 1;
742: inst = data_transfer_insts[(inp_flags | INDEXED) & MEM_MASK];
743: SLJIT_ASSERT(!(inst & (ADDR_MODE2 | UPDATE_REQ)));
744: push_inst(compiler, GET_INST_CODE(inst) | D(reg) | A(arg & 0xf) | B((arg >> 4) & 0xf));
745: return -1;
746: }
747: return (inp_flags & ARG_TEST) ? SLJIT_SUCCESS : 0;
748: }
749:
750: /* See getput_arg below.
751: Note: can_cache is called only for binary operators. Those operator always
752: uses word arguments without write back. */
753: static int can_cache(int arg, sljit_w argw, int next_arg, sljit_w next_argw)
754: {
755: SLJIT_ASSERT(arg & SLJIT_MEM);
756: SLJIT_ASSERT(next_arg & SLJIT_MEM);
757:
758: if (!(arg & 0xf)) {
759: if ((next_arg & SLJIT_MEM) && ((sljit_uw)argw - (sljit_uw)next_argw <= SIMM_MAX || (sljit_uw)next_argw - (sljit_uw)argw <= SIMM_MAX))
760: return 1;
761: return 0;
762: }
763:
764: if (arg & 0xf0)
765: return 0;
766:
767: if (argw <= SIMM_MAX && argw >= SIMM_MIN) {
768: if (arg == next_arg && (next_argw >= SIMM_MAX && next_argw <= SIMM_MIN))
769: return 1;
770: }
771:
772: if (arg == next_arg && ((sljit_uw)argw - (sljit_uw)next_argw <= SIMM_MAX || (sljit_uw)next_argw - (sljit_uw)argw <= SIMM_MAX))
773: return 1;
774:
775: return 0;
776: }
777:
778: #if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
779: #define ADJUST_CACHED_IMM(imm) \
780: if ((inst & ADDR_MODE2) && (imm & 0x3)) { \
781: /* Adjust cached value. Fortunately this is really a rare case */ \
782: compiler->cache_argw += imm & 0x3; \
783: FAIL_IF(push_inst(compiler, ADDI | D(TMP_REG3) | A(TMP_REG3) | (imm & 0x3))); \
784: imm &= ~0x3; \
785: }
786: #else
787: #define ADJUST_CACHED_IMM(imm)
788: #endif
789:
790: /* Emit the necessary instructions. See can_cache above. */
791: static int getput_arg(struct sljit_compiler *compiler, int inp_flags, int reg, int arg, sljit_w argw, int next_arg, sljit_w next_argw)
792: {
793: int tmp_r;
794: sljit_ins inst;
795:
796: SLJIT_ASSERT(arg & SLJIT_MEM);
797:
798: tmp_r = (inp_flags & LOAD_DATA) ? reg : TMP_REG3;
799: if ((arg & 0xf) == tmp_r) {
800: /* Special case for "mov reg, [reg, ... ]".
801: Caching would not happen anyway. */
802: tmp_r = TMP_REG3;
803: compiler->cache_arg = 0;
804: compiler->cache_argw = 0;
805: }
806:
807: if (!(arg & 0xf)) {
808: inst = data_transfer_insts[(inp_flags & ~WRITE_BACK) & MEM_MASK];
809: if ((compiler->cache_arg & SLJIT_IMM) && (((sljit_uw)argw - (sljit_uw)compiler->cache_argw) <= SIMM_MAX || ((sljit_uw)compiler->cache_argw - (sljit_uw)argw) <= SIMM_MAX)) {
810: argw = argw - compiler->cache_argw;
811: ADJUST_CACHED_IMM(argw);
812: SLJIT_ASSERT(!(inst & UPDATE_REQ));
813: return push_inst(compiler, GET_INST_CODE(inst) | D(reg) | A(TMP_REG3) | IMM(argw));
814: }
815:
816: if ((next_arg & SLJIT_MEM) && (argw - next_argw <= SIMM_MAX || next_argw - argw <= SIMM_MAX)) {
817: SLJIT_ASSERT(inp_flags & LOAD_DATA);
818:
819: compiler->cache_arg = SLJIT_IMM;
820: compiler->cache_argw = argw;
821: tmp_r = TMP_REG3;
822: }
823:
824: FAIL_IF(load_immediate(compiler, tmp_r, argw));
825: return push_inst(compiler, GET_INST_CODE(inst) | D(reg) | A(tmp_r));
826: }
827:
828: if (SLJIT_UNLIKELY(arg & 0xf0)) {
829: argw &= 0x3;
830: /* Otherwise getput_arg_fast would capture it. */
831: SLJIT_ASSERT(argw);
832: #if (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32)
833: FAIL_IF(push_inst(compiler, RLWINM | S((arg >> 4) & 0xf) | A(tmp_r) | (argw << 11) | ((31 - argw) << 1)));
834: #else
835: FAIL_IF(push_inst(compiler, RLDI(tmp_r, (arg >> 4) & 0xf, argw, 63 - argw, 1)));
836: #endif
837: inst = data_transfer_insts[(inp_flags | INDEXED) & MEM_MASK];
838: SLJIT_ASSERT(!(inst & (ADDR_MODE2 | UPDATE_REQ)));
839: return push_inst(compiler, GET_INST_CODE(inst) | D(reg) | A(arg & 0xf) | B(tmp_r));
840: }
841:
842: inst = data_transfer_insts[inp_flags & MEM_MASK];
843:
844: if (compiler->cache_arg == arg && ((sljit_uw)argw - (sljit_uw)compiler->cache_argw <= SIMM_MAX || (sljit_uw)compiler->cache_argw - (sljit_uw)argw <= SIMM_MAX)) {
845: SLJIT_ASSERT(!(inp_flags & WRITE_BACK));
846: argw = argw - compiler->cache_argw;
847: ADJUST_CACHED_IMM(argw);
848: return push_inst(compiler, GET_INST_CODE(inst) | D(reg) | A(TMP_REG3) | IMM(argw));
849: }
850:
851: if ((compiler->cache_arg & SLJIT_IMM) && compiler->cache_argw == argw) {
852: inst = data_transfer_insts[(inp_flags | INDEXED) & MEM_MASK];
853: SLJIT_ASSERT(!(inst & (ADDR_MODE2 | UPDATE_REQ)));
854: return push_inst(compiler, GET_INST_CODE(inst) | D(reg) | A(arg & 0xf) | B(TMP_REG3));
855: }
856:
857: if (argw == next_argw && (next_arg & SLJIT_MEM)) {
858: SLJIT_ASSERT(inp_flags & LOAD_DATA);
859: FAIL_IF(load_immediate(compiler, TMP_REG3, argw));
860:
861: compiler->cache_arg = SLJIT_IMM;
862: compiler->cache_argw = argw;
863:
864: inst = data_transfer_insts[(inp_flags | INDEXED) & MEM_MASK];
865: SLJIT_ASSERT(!(inst & (ADDR_MODE2 | UPDATE_REQ)));
866: return push_inst(compiler, GET_INST_CODE(inst) | D(reg) | A(arg & 0xf) | B(TMP_REG3));
867: }
868:
869: if (arg == next_arg && !(inp_flags & WRITE_BACK) && ((sljit_uw)argw - (sljit_uw)next_argw <= SIMM_MAX || (sljit_uw)next_argw - (sljit_uw)argw <= SIMM_MAX)) {
870: SLJIT_ASSERT(inp_flags & LOAD_DATA);
871: FAIL_IF(load_immediate(compiler, TMP_REG3, argw));
872: FAIL_IF(push_inst(compiler, ADD | D(TMP_REG3) | A(TMP_REG3) | B(arg & 0xf)));
873:
874: compiler->cache_arg = arg;
875: compiler->cache_argw = argw;
876:
877: return push_inst(compiler, GET_INST_CODE(inst) | D(reg) | A(TMP_REG3));
878: }
879:
880: /* Get the indexed version instead of the normal one. */
881: inst = data_transfer_insts[(inp_flags | INDEXED) & MEM_MASK];
882: SLJIT_ASSERT(!(inst & (ADDR_MODE2 | UPDATE_REQ)));
883: FAIL_IF(load_immediate(compiler, tmp_r, argw));
884: return push_inst(compiler, GET_INST_CODE(inst) | D(reg) | A(arg & 0xf) | B(tmp_r));
885: }
886:
887: static int emit_op(struct sljit_compiler *compiler, int op, int inp_flags,
888: int dst, sljit_w dstw,
889: int src1, sljit_w src1w,
890: int src2, sljit_w src2w)
891: {
892: /* arg1 goes to TMP_REG1 or src reg
893: arg2 goes to TMP_REG2, imm or src reg
894: TMP_REG3 can be used for caching
895: result goes to TMP_REG2, so put result can use TMP_REG1 and TMP_REG3. */
896: int dst_r;
897: int src1_r;
898: int src2_r;
899: int sugg_src2_r = TMP_REG2;
900: int flags = inp_flags & (ALT_FORM1 | ALT_FORM2 | ALT_FORM3 | ALT_FORM4 | ALT_FORM5 | ALT_FORM6 | ALT_SIGN_EXT | ALT_SET_FLAGS);
901:
902: compiler->cache_arg = 0;
903: compiler->cache_argw = 0;
904:
905: /* Destination check. */
906: if (dst >= SLJIT_TEMPORARY_REG1 && dst <= ZERO_REG) {
907: dst_r = dst;
908: flags |= REG_DEST;
909: if (op >= SLJIT_MOV && op <= SLJIT_MOVU_SI)
910: sugg_src2_r = dst_r;
911: }
912: else if (dst == SLJIT_UNUSED) {
913: if (op >= SLJIT_MOV && op <= SLJIT_MOVU_SI && !(src2 & SLJIT_MEM))
914: return SLJIT_SUCCESS;
915: dst_r = TMP_REG2;
916: }
917: else {
918: SLJIT_ASSERT(dst & SLJIT_MEM);
919: if (getput_arg_fast(compiler, inp_flags | ARG_TEST, TMP_REG2, dst, dstw)) {
920: flags |= FAST_DEST;
921: dst_r = TMP_REG2;
922: }
923: else {
924: flags |= SLOW_DEST;
925: dst_r = 0;
926: }
927: }
928:
929: /* Source 1. */
930: if (src1 >= SLJIT_TEMPORARY_REG1 && src1 <= ZERO_REG) {
931: src1_r = src1;
932: flags |= REG1_SOURCE;
933: }
934: else if (src1 & SLJIT_IMM) {
935: #if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
936: if ((inp_flags & 0x3) == INT_DATA) {
937: if (inp_flags & SIGNED_DATA)
938: src1w = (signed int)src1w;
939: else
940: src1w = (unsigned int)src1w;
941: }
942: #endif
943: FAIL_IF(load_immediate(compiler, TMP_REG1, src1w));
944: src1_r = TMP_REG1;
945: }
946: else if (getput_arg_fast(compiler, inp_flags | LOAD_DATA, TMP_REG1, src1, src1w)) {
947: FAIL_IF(compiler->error);
948: src1_r = TMP_REG1;
949: }
950: else
951: src1_r = 0;
952:
953: /* Source 2. */
954: if (src2 >= SLJIT_TEMPORARY_REG1 && src2 <= ZERO_REG) {
955: src2_r = src2;
956: flags |= REG2_SOURCE;
957: if (!(flags & REG_DEST) && op >= SLJIT_MOV && op <= SLJIT_MOVU_SI)
958: dst_r = src2_r;
959: }
960: else if (src2 & SLJIT_IMM) {
961: #if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
962: if ((inp_flags & 0x3) == INT_DATA) {
963: if (inp_flags & SIGNED_DATA)
964: src2w = (signed int)src2w;
965: else
966: src2w = (unsigned int)src2w;
967: }
968: #endif
969: FAIL_IF(load_immediate(compiler, sugg_src2_r, src2w));
970: src2_r = sugg_src2_r;
971: }
972: else if (getput_arg_fast(compiler, inp_flags | LOAD_DATA, sugg_src2_r, src2, src2w)) {
973: FAIL_IF(compiler->error);
974: src2_r = sugg_src2_r;
975: }
976: else
977: src2_r = 0;
978:
979: /* src1_r, src2_r and dst_r can be zero (=unprocessed).
980: All arguments are complex addressing modes, and it is a binary operator. */
981: if (src1_r == 0 && src2_r == 0 && dst_r == 0) {
982: if (!can_cache(src1, src1w, src2, src2w) && can_cache(src1, src1w, dst, dstw)) {
983: FAIL_IF(getput_arg(compiler, inp_flags | LOAD_DATA, TMP_REG2, src2, src2w, src1, src1w));
984: FAIL_IF(getput_arg(compiler, inp_flags | LOAD_DATA, TMP_REG1, src1, src1w, dst, dstw));
985: }
986: else {
987: FAIL_IF(getput_arg(compiler, inp_flags | LOAD_DATA, TMP_REG1, src1, src1w, src2, src2w));
988: FAIL_IF(getput_arg(compiler, inp_flags | LOAD_DATA, TMP_REG2, src2, src2w, dst, dstw));
989: }
990: src1_r = TMP_REG1;
991: src2_r = TMP_REG2;
992: }
993: else if (src1_r == 0 && src2_r == 0) {
994: FAIL_IF(getput_arg(compiler, inp_flags | LOAD_DATA, TMP_REG1, src1, src1w, src2, src2w));
995: src1_r = TMP_REG1;
996: }
997: else if (src1_r == 0 && dst_r == 0) {
998: FAIL_IF(getput_arg(compiler, inp_flags | LOAD_DATA, TMP_REG1, src1, src1w, dst, dstw));
999: src1_r = TMP_REG1;
1000: }
1001: else if (src2_r == 0 && dst_r == 0) {
1002: FAIL_IF(getput_arg(compiler, inp_flags | LOAD_DATA, sugg_src2_r, src2, src2w, dst, dstw));
1003: src2_r = sugg_src2_r;
1004: }
1005:
1006: if (dst_r == 0)
1007: dst_r = TMP_REG2;
1008:
1009: if (src1_r == 0) {
1010: FAIL_IF(getput_arg(compiler, inp_flags | LOAD_DATA, TMP_REG1, src1, src1w, 0, 0));
1011: src1_r = TMP_REG1;
1012: }
1013:
1014: if (src2_r == 0) {
1015: FAIL_IF(getput_arg(compiler, inp_flags | LOAD_DATA, sugg_src2_r, src2, src2w, 0, 0));
1016: src2_r = sugg_src2_r;
1017: }
1018:
1019: FAIL_IF(emit_single_op(compiler, op, flags, dst_r, src1_r, src2_r));
1020:
1021: if (flags & (FAST_DEST | SLOW_DEST)) {
1022: if (flags & FAST_DEST)
1023: FAIL_IF(getput_arg_fast(compiler, inp_flags, dst_r, dst, dstw));
1024: else
1025: FAIL_IF(getput_arg(compiler, inp_flags, dst_r, dst, dstw, 0, 0));
1026: }
1027: return SLJIT_SUCCESS;
1028: }
1029:
1030: SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_op0(struct sljit_compiler *compiler, int op)
1031: {
1032: CHECK_ERROR();
1033: check_sljit_emit_op0(compiler, op);
1034:
1035: switch (GET_OPCODE(op)) {
1036: case SLJIT_BREAKPOINT:
1037: case SLJIT_NOP:
1038: return push_inst(compiler, NOP);
1039: break;
1040: case SLJIT_UMUL:
1041: case SLJIT_SMUL:
1042: FAIL_IF(push_inst(compiler, OR | S(SLJIT_TEMPORARY_REG1) | A(TMP_REG1) | B(SLJIT_TEMPORARY_REG1)));
1043: #if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
1044: FAIL_IF(push_inst(compiler, MULLD | D(SLJIT_TEMPORARY_REG1) | A(TMP_REG1) | B(SLJIT_TEMPORARY_REG2)));
1045: return push_inst(compiler, (GET_OPCODE(op) == SLJIT_UMUL ? MULHDU : MULHD) | D(SLJIT_TEMPORARY_REG2) | A(TMP_REG1) | B(SLJIT_TEMPORARY_REG2));
1046: #else
1047: FAIL_IF(push_inst(compiler, MULLW | D(SLJIT_TEMPORARY_REG1) | A(TMP_REG1) | B(SLJIT_TEMPORARY_REG2)));
1048: return push_inst(compiler, (GET_OPCODE(op) == SLJIT_UMUL ? MULHWU : MULHW) | D(SLJIT_TEMPORARY_REG2) | A(TMP_REG1) | B(SLJIT_TEMPORARY_REG2));
1049: #endif
1050: case SLJIT_UDIV:
1051: case SLJIT_SDIV:
1052: FAIL_IF(push_inst(compiler, OR | S(SLJIT_TEMPORARY_REG1) | A(TMP_REG1) | B(SLJIT_TEMPORARY_REG1)));
1053: #if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
1054: if (op & SLJIT_INT_OP) {
1055: FAIL_IF(push_inst(compiler, (GET_OPCODE(op) == SLJIT_UDIV ? DIVWU : DIVW) | D(SLJIT_TEMPORARY_REG1) | A(TMP_REG1) | B(SLJIT_TEMPORARY_REG2)));
1056: FAIL_IF(push_inst(compiler, MULLW | D(SLJIT_TEMPORARY_REG2) | A(SLJIT_TEMPORARY_REG1) | B(SLJIT_TEMPORARY_REG2)));
1057: return push_inst(compiler, SUBF | D(SLJIT_TEMPORARY_REG2) | A(SLJIT_TEMPORARY_REG2) | B(TMP_REG1));
1058: }
1059: FAIL_IF(push_inst(compiler, (GET_OPCODE(op) == SLJIT_UDIV ? DIVDU : DIVD) | D(SLJIT_TEMPORARY_REG1) | A(TMP_REG1) | B(SLJIT_TEMPORARY_REG2)));
1060: FAIL_IF(push_inst(compiler, MULLD | D(SLJIT_TEMPORARY_REG2) | A(SLJIT_TEMPORARY_REG1) | B(SLJIT_TEMPORARY_REG2)));
1061: return push_inst(compiler, SUBF | D(SLJIT_TEMPORARY_REG2) | A(SLJIT_TEMPORARY_REG2) | B(TMP_REG1));
1062: #else
1063: FAIL_IF(push_inst(compiler, (GET_OPCODE(op) == SLJIT_UDIV ? DIVWU : DIVW) | D(SLJIT_TEMPORARY_REG1) | A(TMP_REG1) | B(SLJIT_TEMPORARY_REG2)));
1064: FAIL_IF(push_inst(compiler, MULLW | D(SLJIT_TEMPORARY_REG2) | A(SLJIT_TEMPORARY_REG1) | B(SLJIT_TEMPORARY_REG2)));
1065: return push_inst(compiler, SUBF | D(SLJIT_TEMPORARY_REG2) | A(SLJIT_TEMPORARY_REG2) | B(TMP_REG1));
1066: #endif
1067: }
1068:
1069: return SLJIT_SUCCESS;
1070: }
1071:
1072: SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_op1(struct sljit_compiler *compiler, int op,
1073: int dst, sljit_w dstw,
1074: int src, sljit_w srcw)
1075: {
1076: int inp_flags = GET_FLAGS(op) ? ALT_SET_FLAGS : 0;
1077:
1078: CHECK_ERROR();
1079: check_sljit_emit_op1(compiler, op, dst, dstw, src, srcw);
1080:
1081: if ((src & SLJIT_IMM) && srcw == 0)
1082: src = ZERO_REG;
1083:
1084: #if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
1085: if (op & SLJIT_INT_OP) {
1086: inp_flags |= INT_DATA | SIGNED_DATA;
1087: if (src & SLJIT_IMM)
1088: srcw = (int)srcw;
1089: }
1090: #endif
1091: if (op & SLJIT_SET_O)
1092: FAIL_IF(push_inst(compiler, MTXER | S(ZERO_REG)));
1093:
1094: switch (GET_OPCODE(op)) {
1095: case SLJIT_MOV:
1096: return emit_op(compiler, SLJIT_MOV, inp_flags | WORD_DATA, dst, dstw, TMP_REG1, 0, src, srcw);
1097:
1098: case SLJIT_MOV_UI:
1099: return emit_op(compiler, SLJIT_MOV_UI, inp_flags | INT_DATA, dst, dstw, TMP_REG1, 0, src, srcw);
1100:
1101: case SLJIT_MOV_SI:
1102: return emit_op(compiler, SLJIT_MOV_SI, inp_flags | INT_DATA | SIGNED_DATA, dst, dstw, TMP_REG1, 0, src, srcw);
1103:
1104: case SLJIT_MOV_UB:
1105: return emit_op(compiler, SLJIT_MOV_UB, inp_flags | BYTE_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (unsigned char)srcw : srcw);
1106:
1107: case SLJIT_MOV_SB:
1108: return emit_op(compiler, SLJIT_MOV_SB, inp_flags | BYTE_DATA | SIGNED_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (signed char)srcw : srcw);
1109:
1110: case SLJIT_MOV_UH:
1111: return emit_op(compiler, SLJIT_MOV_UH, inp_flags | HALF_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (unsigned short)srcw : srcw);
1112:
1113: case SLJIT_MOV_SH:
1114: return emit_op(compiler, SLJIT_MOV_SH, inp_flags | HALF_DATA | SIGNED_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (signed short)srcw : srcw);
1115:
1116: case SLJIT_MOVU:
1117: return emit_op(compiler, SLJIT_MOV, inp_flags | WORD_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, srcw);
1118:
1119: case SLJIT_MOVU_UI:
1120: return emit_op(compiler, SLJIT_MOV_UI, inp_flags | INT_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, srcw);
1121:
1122: case SLJIT_MOVU_SI:
1123: return emit_op(compiler, SLJIT_MOV_SI, inp_flags | INT_DATA | SIGNED_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, srcw);
1124:
1125: case SLJIT_MOVU_UB:
1126: return emit_op(compiler, SLJIT_MOV_UB, inp_flags | BYTE_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (unsigned char)srcw : srcw);
1127:
1128: case SLJIT_MOVU_SB:
1129: return emit_op(compiler, SLJIT_MOV_SB, inp_flags | BYTE_DATA | SIGNED_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (signed char)srcw : srcw);
1130:
1131: case SLJIT_MOVU_UH:
1132: return emit_op(compiler, SLJIT_MOV_UH, inp_flags | HALF_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (unsigned short)srcw : srcw);
1133:
1134: case SLJIT_MOVU_SH:
1135: return emit_op(compiler, SLJIT_MOV_SH, inp_flags | HALF_DATA | SIGNED_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (signed short)srcw : srcw);
1136:
1137: case SLJIT_NOT:
1138: return emit_op(compiler, SLJIT_NOT, inp_flags, dst, dstw, TMP_REG1, 0, src, srcw);
1139:
1140: case SLJIT_NEG:
1141: return emit_op(compiler, SLJIT_NEG, inp_flags, dst, dstw, TMP_REG1, 0, src, srcw);
1142:
1143: case SLJIT_CLZ:
1144: #if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
1145: return emit_op(compiler, SLJIT_CLZ, inp_flags | (!(op & SLJIT_INT_OP) ? 0 : ALT_FORM1), dst, dstw, TMP_REG1, 0, src, srcw);
1146: #else
1147: return emit_op(compiler, SLJIT_CLZ, inp_flags, dst, dstw, TMP_REG1, 0, src, srcw);
1148: #endif
1149: }
1150:
1151: return SLJIT_SUCCESS;
1152: }
1153:
1154: #define TEST_SL_IMM(src, srcw) \
1155: (((src) & SLJIT_IMM) && (srcw) <= SIMM_MAX && (srcw) >= SIMM_MIN)
1156:
1157: #define TEST_UL_IMM(src, srcw) \
1158: (((src) & SLJIT_IMM) && !((srcw) & ~0xffff))
1159:
1160: #if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
1161: #define TEST_SH_IMM(src, srcw) \
1162: (((src) & SLJIT_IMM) && !((srcw) & 0xffff) && (srcw) <= SLJIT_W(0x7fffffff) && (srcw) >= SLJIT_W(-0x80000000))
1163: #else
1164: #define TEST_SH_IMM(src, srcw) \
1165: (((src) & SLJIT_IMM) && !((srcw) & 0xffff))
1166: #endif
1167:
1168: #define TEST_UH_IMM(src, srcw) \
1169: (((src) & SLJIT_IMM) && !((srcw) & ~0xffff0000))
1170:
1171: #if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
1172: #define TEST_ADD_IMM(src, srcw) \
1173: (((src) & SLJIT_IMM) && (srcw) <= SLJIT_W(0x7fff7fff) && (srcw) >= SLJIT_W(-0x80000000))
1174: #else
1175: #define TEST_ADD_IMM(src, srcw) \
1176: ((src) & SLJIT_IMM)
1177: #endif
1178:
1179: #if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
1180: #define TEST_UI_IMM(src, srcw) \
1181: (((src) & SLJIT_IMM) && !((srcw) & ~0xffffffff))
1182: #else
1183: #define TEST_UI_IMM(src, srcw) \
1184: ((src) & SLJIT_IMM)
1185: #endif
1186:
1187: SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_op2(struct sljit_compiler *compiler, int op,
1188: int dst, sljit_w dstw,
1189: int src1, sljit_w src1w,
1190: int src2, sljit_w src2w)
1191: {
1192: int inp_flags = GET_FLAGS(op) ? ALT_SET_FLAGS : 0;
1193:
1194: CHECK_ERROR();
1195: check_sljit_emit_op2(compiler, op, dst, dstw, src1, src1w, src2, src2w);
1196:
1197: if ((src1 & SLJIT_IMM) && src1w == 0)
1198: src1 = ZERO_REG;
1199: if ((src2 & SLJIT_IMM) && src2w == 0)
1200: src2 = ZERO_REG;
1201:
1202: #if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
1203: if (op & SLJIT_INT_OP) {
1204: inp_flags |= INT_DATA | SIGNED_DATA;
1205: if (src1 & SLJIT_IMM)
1206: src1w = (src1w << 32) >> 32;
1207: if (src2 & SLJIT_IMM)
1208: src2w = (src2w << 32) >> 32;
1209: if (GET_FLAGS(op))
1210: inp_flags |= ALT_SIGN_EXT;
1211: }
1212: #endif
1213: if (op & SLJIT_SET_O)
1214: FAIL_IF(push_inst(compiler, MTXER | S(ZERO_REG)));
1215:
1216: switch (GET_OPCODE(op)) {
1217: case SLJIT_ADD:
1218: if (!GET_FLAGS(op) && ((src1 | src2) & SLJIT_IMM)) {
1219: if (TEST_SL_IMM(src2, src2w)) {
1220: compiler->imm = src2w & 0xffff;
1221: return emit_op(compiler, SLJIT_ADD, inp_flags | ALT_FORM1, dst, dstw, src1, src1w, TMP_REG2, 0);
1222: }
1223: if (TEST_SL_IMM(src1, src1w)) {
1224: compiler->imm = src1w & 0xffff;
1225: return emit_op(compiler, SLJIT_ADD, inp_flags | ALT_FORM1, dst, dstw, src2, src2w, TMP_REG2, 0);
1226: }
1227: if (TEST_SH_IMM(src2, src2w)) {
1228: compiler->imm = (src2w >> 16) & 0xffff;
1229: return emit_op(compiler, SLJIT_ADD, inp_flags | ALT_FORM2, dst, dstw, src1, src1w, TMP_REG2, 0);
1230: }
1231: if (TEST_SH_IMM(src1, src1w)) {
1232: compiler->imm = (src1w >> 16) & 0xffff;
1233: return emit_op(compiler, SLJIT_ADD, inp_flags | ALT_FORM2, dst, dstw, src2, src2w, TMP_REG2, 0);
1234: }
1235: /* Range between -1 and -32768 is covered above. */
1236: if (TEST_ADD_IMM(src2, src2w)) {
1237: compiler->imm = src2w & 0xffffffff;
1238: return emit_op(compiler, SLJIT_ADD, inp_flags | ALT_FORM4, dst, dstw, src1, src1w, TMP_REG2, 0);
1239: }
1240: if (TEST_ADD_IMM(src1, src1w)) {
1241: compiler->imm = src1w & 0xffffffff;
1242: return emit_op(compiler, SLJIT_ADD, inp_flags | ALT_FORM4, dst, dstw, src2, src2w, TMP_REG2, 0);
1243: }
1244: }
1245: if (!(GET_FLAGS(op) & (SLJIT_SET_E | SLJIT_SET_O))) {
1246: if (TEST_SL_IMM(src2, src2w)) {
1247: compiler->imm = src2w & 0xffff;
1248: return emit_op(compiler, SLJIT_ADD, inp_flags | ALT_FORM3, dst, dstw, src1, src1w, TMP_REG2, 0);
1249: }
1250: if (TEST_SL_IMM(src1, src1w)) {
1251: compiler->imm = src1w & 0xffff;
1252: return emit_op(compiler, SLJIT_ADD, inp_flags | ALT_FORM3, dst, dstw, src2, src2w, TMP_REG2, 0);
1253: }
1254: }
1255: return emit_op(compiler, SLJIT_ADD, inp_flags, dst, dstw, src1, src1w, src2, src2w);
1256:
1257: case SLJIT_ADDC:
1258: return emit_op(compiler, SLJIT_ADDC, inp_flags | (!(op & SLJIT_KEEP_FLAGS) ? 0 : ALT_FORM1), dst, dstw, src1, src1w, src2, src2w);
1259:
1260: case SLJIT_SUB:
1261: if (!GET_FLAGS(op) && ((src1 | src2) & SLJIT_IMM)) {
1262: if (TEST_SL_IMM(src2, -src2w)) {
1263: compiler->imm = (-src2w) & 0xffff;
1264: return emit_op(compiler, SLJIT_ADD, inp_flags | ALT_FORM1, dst, dstw, src1, src1w, TMP_REG2, 0);
1265: }
1266: if (TEST_SL_IMM(src1, src1w)) {
1267: compiler->imm = src1w & 0xffff;
1268: return emit_op(compiler, SLJIT_SUB, inp_flags | ALT_FORM1, dst, dstw, src2, src2w, TMP_REG2, 0);
1269: }
1270: if (TEST_SH_IMM(src2, -src2w)) {
1271: compiler->imm = ((-src2w) >> 16) & 0xffff;
1272: return emit_op(compiler, SLJIT_ADD, inp_flags | ALT_FORM2, dst, dstw, src1, src1w, TMP_REG2, 0);
1273: }
1274: /* Range between -1 and -32768 is covered above. */
1275: if (TEST_ADD_IMM(src2, -src2w)) {
1276: compiler->imm = -src2w & 0xffffffff;
1277: return emit_op(compiler, SLJIT_ADD, inp_flags | ALT_FORM4, dst, dstw, src1, src1w, TMP_REG2, 0);
1278: }
1279: }
1280: if (dst == SLJIT_UNUSED && (op & (SLJIT_SET_E | SLJIT_SET_S | SLJIT_SET_U)) && !(op & (SLJIT_SET_O | SLJIT_SET_C))) {
1281: if (!(op & SLJIT_SET_U)) {
1282: /* We know ALT_SIGN_EXT is set if it is an SLJIT_INT_OP on 64 bit systems. */
1283: if (TEST_SL_IMM(src2, src2w)) {
1284: compiler->imm = src2w & 0xffff;
1285: return emit_op(compiler, SLJIT_SUB, inp_flags | ALT_FORM2, dst, dstw, src1, src1w, TMP_REG2, 0);
1286: }
1287: if (GET_FLAGS(op) == SLJIT_SET_E && TEST_SL_IMM(src1, src1w)) {
1288: compiler->imm = src1w & 0xffff;
1289: return emit_op(compiler, SLJIT_SUB, inp_flags | ALT_FORM2, dst, dstw, src2, src2w, TMP_REG2, 0);
1290: }
1291: }
1292: if (!(op & (SLJIT_SET_E | SLJIT_SET_S))) {
1293: /* We know ALT_SIGN_EXT is set if it is an SLJIT_INT_OP on 64 bit systems. */
1294: if (TEST_UL_IMM(src2, src2w)) {
1295: compiler->imm = src2w & 0xffff;
1296: return emit_op(compiler, SLJIT_SUB, inp_flags | ALT_FORM3, dst, dstw, src1, src1w, TMP_REG2, 0);
1297: }
1298: return emit_op(compiler, SLJIT_SUB, inp_flags | ALT_FORM4, dst, dstw, src1, src1w, src2, src2w);
1299: }
1300: if ((src2 & SLJIT_IMM) && src2w >= 0 && src2w <= 0x7fff) {
1301: compiler->imm = src2w;
1302: return emit_op(compiler, SLJIT_SUB, inp_flags | ALT_FORM2 | ALT_FORM3, dst, dstw, src1, src1w, TMP_REG2, 0);
1303: }
1304: return emit_op(compiler, SLJIT_SUB, inp_flags | ((op & SLJIT_SET_U) ? ALT_FORM4 : 0) | ((op & (SLJIT_SET_E | SLJIT_SET_S)) ? ALT_FORM5 : 0), dst, dstw, src1, src1w, src2, src2w);
1305: }
1306: if (!(op & (SLJIT_SET_E | SLJIT_SET_S | SLJIT_SET_U | SLJIT_SET_O))) {
1307: if (TEST_SL_IMM(src2, -src2w)) {
1308: compiler->imm = (-src2w) & 0xffff;
1309: return emit_op(compiler, SLJIT_ADD, inp_flags | ALT_FORM3, dst, dstw, src1, src1w, TMP_REG2, 0);
1310: }
1311: }
1312: /* We know ALT_SIGN_EXT is set if it is an SLJIT_INT_OP on 64 bit systems. */
1313: return emit_op(compiler, SLJIT_SUB, inp_flags | (!(op & SLJIT_SET_U) ? 0 : ALT_FORM6), dst, dstw, src1, src1w, src2, src2w);
1314:
1315: case SLJIT_SUBC:
1316: return emit_op(compiler, SLJIT_SUBC, inp_flags | (!(op & SLJIT_KEEP_FLAGS) ? 0 : ALT_FORM1), dst, dstw, src1, src1w, src2, src2w);
1317:
1318: case SLJIT_MUL:
1319: #if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
1320: if (op & SLJIT_INT_OP)
1321: inp_flags |= ALT_FORM2;
1322: #endif
1323: if (!GET_FLAGS(op)) {
1324: if (TEST_SL_IMM(src2, src2w)) {
1325: compiler->imm = src2w & 0xffff;
1326: return emit_op(compiler, SLJIT_MUL, inp_flags | ALT_FORM1, dst, dstw, src1, src1w, TMP_REG2, 0);
1327: }
1328: if (TEST_SL_IMM(src1, src1w)) {
1329: compiler->imm = src1w & 0xffff;
1330: return emit_op(compiler, SLJIT_MUL, inp_flags | ALT_FORM1, dst, dstw, src2, src2w, TMP_REG2, 0);
1331: }
1332: }
1333: return emit_op(compiler, SLJIT_MUL, inp_flags, dst, dstw, src1, src1w, src2, src2w);
1334:
1335: case SLJIT_AND:
1336: case SLJIT_OR:
1337: case SLJIT_XOR:
1338: /* Commutative unsigned operations. */
1339: if (!GET_FLAGS(op) || GET_OPCODE(op) == SLJIT_AND) {
1340: if (TEST_UL_IMM(src2, src2w)) {
1341: compiler->imm = src2w;
1342: return emit_op(compiler, GET_OPCODE(op), inp_flags | ALT_FORM1, dst, dstw, src1, src1w, TMP_REG2, 0);
1343: }
1344: if (TEST_UL_IMM(src1, src1w)) {
1345: compiler->imm = src1w;
1346: return emit_op(compiler, GET_OPCODE(op), inp_flags | ALT_FORM1, dst, dstw, src2, src2w, TMP_REG2, 0);
1347: }
1348: if (TEST_UH_IMM(src2, src2w)) {
1349: compiler->imm = (src2w >> 16) & 0xffff;
1350: return emit_op(compiler, GET_OPCODE(op), inp_flags | ALT_FORM2, dst, dstw, src1, src1w, TMP_REG2, 0);
1351: }
1352: if (TEST_UH_IMM(src1, src1w)) {
1353: compiler->imm = (src1w >> 16) & 0xffff;
1354: return emit_op(compiler, GET_OPCODE(op), inp_flags | ALT_FORM2, dst, dstw, src2, src2w, TMP_REG2, 0);
1355: }
1356: }
1357: if (!GET_FLAGS(op) && GET_OPCODE(op) != SLJIT_AND) {
1358: if (TEST_UI_IMM(src2, src2w)) {
1359: compiler->imm = src2w;
1360: return emit_op(compiler, GET_OPCODE(op), inp_flags | ALT_FORM3, dst, dstw, src1, src1w, TMP_REG2, 0);
1361: }
1362: if (TEST_UI_IMM(src1, src1w)) {
1363: compiler->imm = src1w;
1364: return emit_op(compiler, GET_OPCODE(op), inp_flags | ALT_FORM3, dst, dstw, src2, src2w, TMP_REG2, 0);
1365: }
1366: }
1367: return emit_op(compiler, GET_OPCODE(op), inp_flags, dst, dstw, src1, src1w, src2, src2w);
1368:
1369: case SLJIT_SHL:
1370: case SLJIT_LSHR:
1371: case SLJIT_ASHR:
1372: #if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
1373: if (op & SLJIT_INT_OP)
1374: inp_flags |= ALT_FORM2;
1375: #endif
1376: if (src2 & SLJIT_IMM) {
1377: compiler->imm = src2w;
1378: return emit_op(compiler, GET_OPCODE(op), inp_flags | ALT_FORM1, dst, dstw, src1, src1w, TMP_REG2, 0);
1379: }
1380: return emit_op(compiler, GET_OPCODE(op), inp_flags, dst, dstw, src1, src1w, src2, src2w);
1381: }
1382:
1383: return SLJIT_SUCCESS;
1384: }
1385:
1386: SLJIT_API_FUNC_ATTRIBUTE int sljit_get_register_index(int reg)
1387: {
1388: check_sljit_get_register_index(reg);
1389: return reg_map[reg];
1390: }
1391:
1392: SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_op_custom(struct sljit_compiler *compiler,
1393: void *instruction, int size)
1394: {
1395: CHECK_ERROR();
1396: check_sljit_emit_op_custom(compiler, instruction, size);
1397: SLJIT_ASSERT(size == 4);
1398:
1399: return push_inst(compiler, *(sljit_ins*)instruction);
1400: }
1401:
1402: /* --------------------------------------------------------------------- */
1403: /* Floating point operators */
1404: /* --------------------------------------------------------------------- */
1405:
1406: SLJIT_API_FUNC_ATTRIBUTE int sljit_is_fpu_available(void)
1407: {
1408: /* Always available. */
1409: return 1;
1410: }
1411:
1412: static int emit_fpu_data_transfer(struct sljit_compiler *compiler, int fpu_reg, int load, int arg, sljit_w argw)
1413: {
1414: SLJIT_ASSERT(arg & SLJIT_MEM);
1415:
1416: /* Fast loads and stores. */
1417: if (!(arg & 0xf0)) {
1418: /* Both for (arg & 0xf) == SLJIT_UNUSED and (arg & 0xf) != SLJIT_UNUSED. */
1419: if (argw <= SIMM_MAX && argw >= SIMM_MIN)
1420: return push_inst(compiler, (load ? LFD : STFD) | FD(fpu_reg) | A(arg & 0xf) | IMM(argw));
1421: }
1422:
1423: if (arg & 0xf0) {
1424: argw &= 0x3;
1425: if (argw) {
1426: #if (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32)
1427: FAIL_IF(push_inst(compiler, RLWINM | S((arg >> 4) & 0xf) | A(TMP_REG2) | (argw << 11) | ((31 - argw) << 1)));
1428: #else
1429: FAIL_IF(push_inst(compiler, RLDI(TMP_REG2, (arg >> 4) & 0xf, argw, 63 - argw, 1)));
1430: #endif
1431: return push_inst(compiler, (load ? LFDX : STFDX) | FD(fpu_reg) | A(arg & 0xf) | B(TMP_REG2));
1432: }
1433: return push_inst(compiler, (load ? LFDX : STFDX) | FD(fpu_reg) | A(arg & 0xf) | B((arg >> 4) & 0xf));
1434: }
1435:
1436: /* Use cache. */
1437: if (compiler->cache_arg == arg && argw - compiler->cache_argw <= SIMM_MAX && argw - compiler->cache_argw >= SIMM_MIN)
1438: return push_inst(compiler, (load ? LFD : STFD) | FD(fpu_reg) | A(TMP_REG3) | IMM(argw - compiler->cache_argw));
1439:
1440: /* Put value to cache. */
1441: compiler->cache_arg = arg;
1442: compiler->cache_argw = argw;
1443:
1444: FAIL_IF(load_immediate(compiler, TMP_REG3, argw));
1445: if (!(arg & 0xf))
1446: return push_inst(compiler, (load ? LFDX : STFDX) | FD(fpu_reg) | A(0) | B(TMP_REG3));
1447: return push_inst(compiler, (load ? LFDUX : STFDUX) | FD(fpu_reg) | A(TMP_REG3) | B(arg & 0xf));
1448: }
1449:
1450: SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_fop1(struct sljit_compiler *compiler, int op,
1451: int dst, sljit_w dstw,
1452: int src, sljit_w srcw)
1453: {
1454: int dst_fr;
1455:
1456: CHECK_ERROR();
1457: check_sljit_emit_fop1(compiler, op, dst, dstw, src, srcw);
1458:
1459: compiler->cache_arg = 0;
1460: compiler->cache_argw = 0;
1461:
1462: if (GET_OPCODE(op) == SLJIT_FCMP) {
1463: if (dst > SLJIT_FLOAT_REG4) {
1464: FAIL_IF(emit_fpu_data_transfer(compiler, TMP_FREG1, 1, dst, dstw));
1465: dst = TMP_FREG1;
1466: }
1467: if (src > SLJIT_FLOAT_REG4) {
1468: FAIL_IF(emit_fpu_data_transfer(compiler, TMP_FREG2, 1, src, srcw));
1469: src = TMP_FREG2;
1470: }
1471: return push_inst(compiler, FCMPU | CRD(4) | FA(dst) | FB(src));
1472: }
1473:
1474: dst_fr = (dst > SLJIT_FLOAT_REG4) ? TMP_FREG1 : dst;
1475:
1476: if (src > SLJIT_FLOAT_REG4) {
1477: FAIL_IF(emit_fpu_data_transfer(compiler, dst_fr, 1, src, srcw));
1478: src = dst_fr;
1479: }
1480:
1481: switch (op) {
1482: case SLJIT_FMOV:
1483: if (src != dst_fr && dst_fr != TMP_FREG1)
1484: FAIL_IF(push_inst(compiler, FMR | FD(dst_fr) | FB(src)));
1485: break;
1486: case SLJIT_FNEG:
1487: FAIL_IF(push_inst(compiler, FNEG | FD(dst_fr) | FB(src)));
1488: break;
1489: case SLJIT_FABS:
1490: FAIL_IF(push_inst(compiler, FABS | FD(dst_fr) | FB(src)));
1491: break;
1492: }
1493:
1494: if (dst_fr == TMP_FREG1)
1495: FAIL_IF(emit_fpu_data_transfer(compiler, src, 0, dst, dstw));
1496:
1497: return SLJIT_SUCCESS;
1498: }
1499:
1500: SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_fop2(struct sljit_compiler *compiler, int op,
1501: int dst, sljit_w dstw,
1502: int src1, sljit_w src1w,
1503: int src2, sljit_w src2w)
1504: {
1505: int dst_fr;
1506:
1507: CHECK_ERROR();
1508: check_sljit_emit_fop2(compiler, op, dst, dstw, src1, src1w, src2, src2w);
1509:
1510: compiler->cache_arg = 0;
1511: compiler->cache_argw = 0;
1512:
1513: dst_fr = (dst > SLJIT_FLOAT_REG4) ? TMP_FREG1 : dst;
1514:
1515: if (src2 > SLJIT_FLOAT_REG4) {
1516: FAIL_IF(emit_fpu_data_transfer(compiler, TMP_FREG2, 1, src2, src2w));
1517: src2 = TMP_FREG2;
1518: }
1519:
1520: if (src1 > SLJIT_FLOAT_REG4) {
1521: FAIL_IF(emit_fpu_data_transfer(compiler, TMP_FREG1, 1, src1, src1w));
1522: src1 = TMP_FREG1;
1523: }
1524:
1525: switch (op) {
1526: case SLJIT_FADD:
1527: FAIL_IF(push_inst(compiler, FADD | FD(dst_fr) | FA(src1) | FB(src2)));
1528: break;
1529:
1530: case SLJIT_FSUB:
1531: FAIL_IF(push_inst(compiler, FSUB | FD(dst_fr) | FA(src1) | FB(src2)));
1532: break;
1533:
1534: case SLJIT_FMUL:
1535: FAIL_IF(push_inst(compiler, FMUL | FD(dst_fr) | FA(src1) | FC(src2) /* FMUL use FC as src2 */));
1536: break;
1537:
1538: case SLJIT_FDIV:
1539: FAIL_IF(push_inst(compiler, FDIV | FD(dst_fr) | FA(src1) | FB(src2)));
1540: break;
1541: }
1542:
1543: if (dst_fr == TMP_FREG1)
1544: FAIL_IF(emit_fpu_data_transfer(compiler, TMP_FREG1, 0, dst, dstw));
1545:
1546: return SLJIT_SUCCESS;
1547: }
1548:
1549: /* --------------------------------------------------------------------- */
1550: /* Other instructions */
1551: /* --------------------------------------------------------------------- */
1552:
1553: SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_fast_enter(struct sljit_compiler *compiler, int dst, sljit_w dstw, int args, int temporaries, int saveds, int local_size)
1554: {
1555: CHECK_ERROR();
1556: check_sljit_emit_fast_enter(compiler, dst, dstw, args, temporaries, saveds, local_size);
1557:
1558: compiler->temporaries = temporaries;
1559: compiler->saveds = saveds;
1560:
1561: compiler->has_locals = local_size > 0;
1562: #if (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32)
1563: compiler->local_size = (2 + saveds + 2) * sizeof(sljit_w) + local_size;
1564: #else
1565: compiler->local_size = (2 + saveds + 7 + 8) * sizeof(sljit_w) + local_size;
1566: #endif
1567: compiler->local_size = (compiler->local_size + 15) & ~0xf;
1568:
1569: if (dst >= SLJIT_TEMPORARY_REG1 && dst <= SLJIT_NO_REGISTERS)
1570: return push_inst(compiler, MFLR | D(dst));
1571: else if (dst & SLJIT_MEM) {
1572: FAIL_IF(push_inst(compiler, MFLR | D(TMP_REG2)));
1573: return emit_op(compiler, SLJIT_MOV, WORD_DATA, dst, dstw, TMP_REG1, 0, TMP_REG2, 0);
1574: }
1575:
1576: return SLJIT_SUCCESS;
1577: }
1578:
1579: SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_fast_return(struct sljit_compiler *compiler, int src, sljit_w srcw)
1580: {
1581: CHECK_ERROR();
1582: check_sljit_emit_fast_return(compiler, src, srcw);
1583:
1584: if (src >= SLJIT_TEMPORARY_REG1 && src <= SLJIT_NO_REGISTERS)
1585: FAIL_IF(push_inst(compiler, MTLR | S(src)));
1586: else {
1587: if (src & SLJIT_MEM)
1588: FAIL_IF(emit_op(compiler, SLJIT_MOV, WORD_DATA, TMP_REG2, 0, TMP_REG1, 0, src, srcw));
1589: else if (src & SLJIT_IMM)
1590: FAIL_IF(load_immediate(compiler, TMP_REG2, srcw));
1591: FAIL_IF(push_inst(compiler, MTLR | S(TMP_REG2)));
1592: }
1593: return push_inst(compiler, BLR);
1594: }
1595:
1596: /* --------------------------------------------------------------------- */
1597: /* Conditional instructions */
1598: /* --------------------------------------------------------------------- */
1599:
1600: SLJIT_API_FUNC_ATTRIBUTE struct sljit_label* sljit_emit_label(struct sljit_compiler *compiler)
1601: {
1602: struct sljit_label *label;
1603:
1604: CHECK_ERROR_PTR();
1605: check_sljit_emit_label(compiler);
1606:
1607: if (compiler->last_label && compiler->last_label->size == compiler->size)
1608: return compiler->last_label;
1609:
1610: label = (struct sljit_label*)ensure_abuf(compiler, sizeof(struct sljit_label));
1611: PTR_FAIL_IF(!label);
1612: set_label(label, compiler);
1613: return label;
1614: }
1615:
1616: static sljit_ins get_bo_bi_flags(struct sljit_compiler *compiler, int type)
1617: {
1618: switch (type) {
1619: case SLJIT_C_EQUAL:
1620: return (12 << 21) | (2 << 16);
1621:
1622: case SLJIT_C_NOT_EQUAL:
1623: return (4 << 21) | (2 << 16);
1624:
1625: case SLJIT_C_LESS:
1626: case SLJIT_C_FLOAT_LESS:
1627: return (12 << 21) | ((4 + 0) << 16);
1628:
1629: case SLJIT_C_GREATER_EQUAL:
1630: case SLJIT_C_FLOAT_GREATER_EQUAL:
1631: return (4 << 21) | ((4 + 0) << 16);
1632:
1633: case SLJIT_C_GREATER:
1634: case SLJIT_C_FLOAT_GREATER:
1635: return (12 << 21) | ((4 + 1) << 16);
1636:
1637: case SLJIT_C_LESS_EQUAL:
1638: case SLJIT_C_FLOAT_LESS_EQUAL:
1639: return (4 << 21) | ((4 + 1) << 16);
1640:
1641: case SLJIT_C_SIG_LESS:
1642: return (12 << 21) | (0 << 16);
1643:
1644: case SLJIT_C_SIG_GREATER_EQUAL:
1645: return (4 << 21) | (0 << 16);
1646:
1647: case SLJIT_C_SIG_GREATER:
1648: return (12 << 21) | (1 << 16);
1649:
1650: case SLJIT_C_SIG_LESS_EQUAL:
1651: return (4 << 21) | (1 << 16);
1652:
1653: case SLJIT_C_OVERFLOW:
1654: case SLJIT_C_MUL_OVERFLOW:
1655: return (12 << 21) | (3 << 16);
1656:
1657: case SLJIT_C_NOT_OVERFLOW:
1658: case SLJIT_C_MUL_NOT_OVERFLOW:
1659: return (4 << 21) | (3 << 16);
1660:
1661: case SLJIT_C_FLOAT_EQUAL:
1662: return (12 << 21) | ((4 + 2) << 16);
1663:
1664: case SLJIT_C_FLOAT_NOT_EQUAL:
1665: return (4 << 21) | ((4 + 2) << 16);
1666:
1667: case SLJIT_C_FLOAT_NAN:
1668: return (12 << 21) | ((4 + 3) << 16);
1669:
1670: case SLJIT_C_FLOAT_NOT_NAN:
1671: return (4 << 21) | ((4 + 3) << 16);
1672:
1673: default:
1674: SLJIT_ASSERT(type >= SLJIT_JUMP && type <= SLJIT_CALL3);
1675: return (20 << 21);
1676: }
1677: }
1678:
1679: SLJIT_API_FUNC_ATTRIBUTE struct sljit_jump* sljit_emit_jump(struct sljit_compiler *compiler, int type)
1680: {
1681: struct sljit_jump *jump;
1682: sljit_ins bo_bi_flags;
1683:
1684: CHECK_ERROR_PTR();
1685: check_sljit_emit_jump(compiler, type);
1686:
1687: bo_bi_flags = get_bo_bi_flags(compiler, type & 0xff);
1688: if (!bo_bi_flags)
1689: return NULL;
1690:
1691: jump = (struct sljit_jump*)ensure_abuf(compiler, sizeof(struct sljit_jump));
1692: PTR_FAIL_IF(!jump);
1693: set_jump(jump, compiler, type & SLJIT_REWRITABLE_JUMP);
1694: type &= 0xff;
1695:
1696: /* In PPC, we don't need to touch the arguments. */
1697: if (type >= SLJIT_JUMP)
1698: jump->flags |= UNCOND_B;
1699:
1700: PTR_FAIL_IF(emit_const(compiler, TMP_REG1, 0));
1701: PTR_FAIL_IF(push_inst(compiler, MTCTR | S(TMP_REG1)));
1702: jump->addr = compiler->size;
1703: PTR_FAIL_IF(push_inst(compiler, BCCTR | bo_bi_flags | (type >= SLJIT_FAST_CALL ? 1 : 0)));
1704: return jump;
1705: }
1706:
1707: SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_ijump(struct sljit_compiler *compiler, int type, int src, sljit_w srcw)
1708: {
1709: sljit_ins bo_bi_flags;
1710: struct sljit_jump *jump = NULL;
1711: int src_r;
1712:
1713: CHECK_ERROR();
1714: check_sljit_emit_ijump(compiler, type, src, srcw);
1715:
1716: bo_bi_flags = get_bo_bi_flags(compiler, type);
1717: FAIL_IF(!bo_bi_flags);
1718:
1719: if (src >= SLJIT_TEMPORARY_REG1 && src <= SLJIT_NO_REGISTERS)
1720: src_r = src;
1721: else if (src & SLJIT_IMM) {
1722: jump = (struct sljit_jump*)ensure_abuf(compiler, sizeof(struct sljit_jump));
1723: FAIL_IF(!jump);
1724: set_jump(jump, compiler, JUMP_ADDR | UNCOND_B);
1725: jump->u.target = srcw;
1726:
1727: FAIL_IF(emit_const(compiler, TMP_REG2, 0));
1728: src_r = TMP_REG2;
1729: }
1730: else {
1731: FAIL_IF(emit_op(compiler, SLJIT_MOV, WORD_DATA, TMP_REG2, 0, TMP_REG1, 0, src, srcw));
1732: src_r = TMP_REG2;
1733: }
1734:
1735: FAIL_IF(push_inst(compiler, MTCTR | S(src_r)));
1736: if (jump)
1737: jump->addr = compiler->size;
1738: return push_inst(compiler, BCCTR | bo_bi_flags | (type >= SLJIT_FAST_CALL ? 1 : 0));
1739: }
1740:
1741: /* Get a bit from CR, all other bits are zeroed. */
1742: #define GET_CR_BIT(bit, dst) \
1743: FAIL_IF(push_inst(compiler, MFCR | D(dst))); \
1744: FAIL_IF(push_inst(compiler, RLWINM | S(dst) | A(dst) | ((1 + (bit)) << 11) | (31 << 6) | (31 << 1)));
1745:
1746: #define INVERT_BIT(dst) \
1747: FAIL_IF(push_inst(compiler, XORI | S(dst) | A(dst) | 0x1));
1748:
1749: SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_cond_value(struct sljit_compiler *compiler, int op, int dst, sljit_w dstw, int type)
1750: {
1751: int reg;
1752:
1753: CHECK_ERROR();
1754: check_sljit_emit_cond_value(compiler, op, dst, dstw, type);
1755:
1756: if (dst == SLJIT_UNUSED)
1757: return SLJIT_SUCCESS;
1758:
1759: reg = (op == SLJIT_MOV && dst >= SLJIT_TEMPORARY_REG1 && dst <= SLJIT_NO_REGISTERS) ? dst : TMP_REG2;
1760:
1761: switch (type) {
1762: case SLJIT_C_EQUAL:
1763: GET_CR_BIT(2, reg);
1764: break;
1765:
1766: case SLJIT_C_NOT_EQUAL:
1767: GET_CR_BIT(2, reg);
1768: INVERT_BIT(reg);
1769: break;
1770:
1771: case SLJIT_C_LESS:
1772: case SLJIT_C_FLOAT_LESS:
1773: GET_CR_BIT(4 + 0, reg);
1774: break;
1775:
1776: case SLJIT_C_GREATER_EQUAL:
1777: case SLJIT_C_FLOAT_GREATER_EQUAL:
1778: GET_CR_BIT(4 + 0, reg);
1779: INVERT_BIT(reg);
1780: break;
1781:
1782: case SLJIT_C_GREATER:
1783: case SLJIT_C_FLOAT_GREATER:
1784: GET_CR_BIT(4 + 1, reg);
1785: break;
1786:
1787: case SLJIT_C_LESS_EQUAL:
1788: case SLJIT_C_FLOAT_LESS_EQUAL:
1789: GET_CR_BIT(4 + 1, reg);
1790: INVERT_BIT(reg);
1791: break;
1792:
1793: case SLJIT_C_SIG_LESS:
1794: GET_CR_BIT(0, reg);
1795: break;
1796:
1797: case SLJIT_C_SIG_GREATER_EQUAL:
1798: GET_CR_BIT(0, reg);
1799: INVERT_BIT(reg);
1800: break;
1801:
1802: case SLJIT_C_SIG_GREATER:
1803: GET_CR_BIT(1, reg);
1804: break;
1805:
1806: case SLJIT_C_SIG_LESS_EQUAL:
1807: GET_CR_BIT(1, reg);
1808: INVERT_BIT(reg);
1809: break;
1810:
1811: case SLJIT_C_OVERFLOW:
1812: case SLJIT_C_MUL_OVERFLOW:
1813: GET_CR_BIT(3, reg);
1814: break;
1815:
1816: case SLJIT_C_NOT_OVERFLOW:
1817: case SLJIT_C_MUL_NOT_OVERFLOW:
1818: GET_CR_BIT(3, reg);
1819: INVERT_BIT(reg);
1820: break;
1821:
1822: case SLJIT_C_FLOAT_EQUAL:
1823: GET_CR_BIT(4 + 2, reg);
1824: break;
1825:
1826: case SLJIT_C_FLOAT_NOT_EQUAL:
1827: GET_CR_BIT(4 + 2, reg);
1828: INVERT_BIT(reg);
1829: break;
1830:
1831: case SLJIT_C_FLOAT_NAN:
1832: GET_CR_BIT(4 + 3, reg);
1833: break;
1834:
1835: case SLJIT_C_FLOAT_NOT_NAN:
1836: GET_CR_BIT(4 + 3, reg);
1837: INVERT_BIT(reg);
1838: break;
1839:
1840: default:
1841: SLJIT_ASSERT_STOP();
1842: break;
1843: }
1844:
1845: if (GET_OPCODE(op) == SLJIT_OR)
1846: return emit_op(compiler, GET_OPCODE(op), GET_FLAGS(op) ? ALT_SET_FLAGS : 0, dst, dstw, dst, dstw, TMP_REG2, 0);
1847:
1848: if (reg == TMP_REG2)
1849: return emit_op(compiler, SLJIT_MOV, WORD_DATA, dst, dstw, TMP_REG1, 0, TMP_REG2, 0);
1850: return SLJIT_SUCCESS;
1851: }
1852:
1853: SLJIT_API_FUNC_ATTRIBUTE struct sljit_const* sljit_emit_const(struct sljit_compiler *compiler, int dst, sljit_w dstw, sljit_w init_value)
1854: {
1855: struct sljit_const *const_;
1856: int reg;
1857:
1858: CHECK_ERROR_PTR();
1859: check_sljit_emit_const(compiler, dst, dstw, init_value);
1860:
1861: const_ = (struct sljit_const*)ensure_abuf(compiler, sizeof(struct sljit_const));
1862: PTR_FAIL_IF(!const_);
1863: set_const(const_, compiler);
1864:
1865: reg = (dst >= SLJIT_TEMPORARY_REG1 && dst <= SLJIT_NO_REGISTERS) ? dst : TMP_REG2;
1866:
1867: PTR_FAIL_IF(emit_const(compiler, reg, init_value));
1868:
1869: if (dst & SLJIT_MEM)
1870: PTR_FAIL_IF(emit_op(compiler, SLJIT_MOV, WORD_DATA, dst, dstw, TMP_REG1, 0, TMP_REG2, 0));
1871: return const_;
1872: }
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