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
27 /* ppc 64-bit arch dependent functions. */
28
29 #if defined(__GNUC__) || (defined(__IBM_GCC_ASM) && __IBM_GCC_ASM)
30 #define ASM_SLJIT_CLZ(src, dst) \
31 __asm__ volatile ( "cntlzd %0, %1" : "=r"(dst) : "r"(src) )
32 #elif defined(__xlc__)
33 #error "Please enable GCC syntax for inline assembly statements"
34 #else
35 #error "Must implement count leading zeroes"
36 #endif
37
38 #define PUSH_RLDICR(reg, shift) \
39 push_inst(compiler, RLDI(reg, reg, 63 - shift, shift, 1))
40
load_immediate(struct sljit_compiler * compiler,sljit_s32 reg,sljit_sw imm)41 static sljit_s32 load_immediate(struct sljit_compiler *compiler, sljit_s32 reg, sljit_sw imm)
42 {
43 sljit_uw tmp;
44 sljit_uw shift;
45 sljit_uw tmp2;
46 sljit_uw shift2;
47
48 if (imm <= SIMM_MAX && imm >= SIMM_MIN)
49 return push_inst(compiler, ADDI | D(reg) | A(0) | IMM(imm));
50
51 if (!(imm & ~0xffff))
52 return push_inst(compiler, ORI | S(TMP_ZERO) | A(reg) | IMM(imm));
53
54 if (imm <= 0x7fffffffl && imm >= -0x80000000l) {
55 FAIL_IF(push_inst(compiler, ADDIS | D(reg) | A(0) | IMM(imm >> 16)));
56 return (imm & 0xffff) ? push_inst(compiler, ORI | S(reg) | A(reg) | IMM(imm)) : SLJIT_SUCCESS;
57 }
58
59 /* Count leading zeroes. */
60 tmp = (sljit_uw)((imm >= 0) ? imm : ~imm);
61 ASM_SLJIT_CLZ(tmp, shift);
62 SLJIT_ASSERT(shift > 0);
63 shift--;
64 tmp = ((sljit_uw)imm << shift);
65
66 if ((tmp & ~0xffff000000000000ul) == 0) {
67 FAIL_IF(push_inst(compiler, ADDI | D(reg) | A(0) | (sljit_ins)(tmp >> 48)));
68 shift += 15;
69 return PUSH_RLDICR(reg, shift);
70 }
71
72 if ((tmp & ~0xffffffff00000000ul) == 0) {
73 FAIL_IF(push_inst(compiler, ADDIS | D(reg) | A(0) | (sljit_ins)(tmp >> 48)));
74 FAIL_IF(push_inst(compiler, ORI | S(reg) | A(reg) | IMM(tmp >> 32)));
75 shift += 31;
76 return PUSH_RLDICR(reg, shift);
77 }
78
79 /* Cut out the 16 bit from immediate. */
80 shift += 15;
81 tmp2 = (sljit_uw)imm & (((sljit_uw)1 << (63 - shift)) - 1);
82
83 if (tmp2 <= 0xffff) {
84 FAIL_IF(push_inst(compiler, ADDI | D(reg) | A(0) | (sljit_ins)(tmp >> 48)));
85 FAIL_IF(PUSH_RLDICR(reg, shift));
86 return push_inst(compiler, ORI | S(reg) | A(reg) | (sljit_ins)tmp2);
87 }
88
89 if (tmp2 <= 0xffffffff) {
90 FAIL_IF(push_inst(compiler, ADDI | D(reg) | A(0) | IMM(tmp >> 48)));
91 FAIL_IF(PUSH_RLDICR(reg, shift));
92 FAIL_IF(push_inst(compiler, ORIS | S(reg) | A(reg) | (sljit_ins)(tmp2 >> 16)));
93 return (imm & 0xffff) ? push_inst(compiler, ORI | S(reg) | A(reg) | IMM(tmp2)) : SLJIT_SUCCESS;
94 }
95
96 ASM_SLJIT_CLZ(tmp2, shift2);
97 tmp2 <<= shift2;
98
99 if ((tmp2 & ~0xffff000000000000ul) == 0) {
100 FAIL_IF(push_inst(compiler, ADDI | D(reg) | A(0) | (sljit_ins)(tmp >> 48)));
101 shift2 += 15;
102 shift += (63 - shift2);
103 FAIL_IF(PUSH_RLDICR(reg, shift));
104 FAIL_IF(push_inst(compiler, ORI | S(reg) | A(reg) | (sljit_ins)(tmp2 >> 48)));
105 return PUSH_RLDICR(reg, shift2);
106 }
107
108 /* The general version. */
109 FAIL_IF(push_inst(compiler, ADDIS | D(reg) | A(0) | (sljit_ins)((sljit_uw)imm >> 48)));
110 FAIL_IF(push_inst(compiler, ORI | S(reg) | A(reg) | IMM(imm >> 32)));
111 FAIL_IF(PUSH_RLDICR(reg, 31));
112 FAIL_IF(push_inst(compiler, ORIS | S(reg) | A(reg) | IMM(imm >> 16)));
113 return push_inst(compiler, ORI | S(reg) | A(reg) | IMM(imm));
114 }
115
116 /* Simplified mnemonics: clrldi. */
117 #define INS_CLEAR_LEFT(dst, src, from) \
118 (RLDICL | S(src) | A(dst) | ((from) << 6) | (1 << 5))
119
120 /* Sign extension for integer operations. */
121 #define UN_EXTS() \
122 if ((flags & (ALT_SIGN_EXT | REG2_SOURCE)) == (ALT_SIGN_EXT | REG2_SOURCE)) { \
123 FAIL_IF(push_inst(compiler, EXTSW | S(src2) | A(TMP_REG2))); \
124 src2 = TMP_REG2; \
125 }
126
127 #define BIN_EXTS() \
128 if (flags & ALT_SIGN_EXT) { \
129 if (flags & REG1_SOURCE) { \
130 FAIL_IF(push_inst(compiler, EXTSW | S(src1) | A(TMP_REG1))); \
131 src1 = TMP_REG1; \
132 } \
133 if (flags & REG2_SOURCE) { \
134 FAIL_IF(push_inst(compiler, EXTSW | S(src2) | A(TMP_REG2))); \
135 src2 = TMP_REG2; \
136 } \
137 }
138
139 #define BIN_IMM_EXTS() \
140 if ((flags & (ALT_SIGN_EXT | REG1_SOURCE)) == (ALT_SIGN_EXT | REG1_SOURCE)) { \
141 FAIL_IF(push_inst(compiler, EXTSW | S(src1) | A(TMP_REG1))); \
142 src1 = TMP_REG1; \
143 }
144
emit_single_op(struct sljit_compiler * compiler,sljit_s32 op,sljit_s32 flags,sljit_s32 dst,sljit_s32 src1,sljit_s32 src2)145 static SLJIT_INLINE sljit_s32 emit_single_op(struct sljit_compiler *compiler, sljit_s32 op, sljit_s32 flags,
146 sljit_s32 dst, sljit_s32 src1, sljit_s32 src2)
147 {
148 switch (op) {
149 case SLJIT_MOV:
150 case SLJIT_MOV_P:
151 SLJIT_ASSERT(src1 == TMP_REG1);
152 if (dst != src2)
153 return push_inst(compiler, OR | S(src2) | A(dst) | B(src2));
154 return SLJIT_SUCCESS;
155
156 case SLJIT_MOV_U32:
157 case SLJIT_MOV_S32:
158 SLJIT_ASSERT(src1 == TMP_REG1);
159 if ((flags & (REG_DEST | REG2_SOURCE)) == (REG_DEST | REG2_SOURCE)) {
160 if (op == SLJIT_MOV_S32)
161 return push_inst(compiler, EXTSW | S(src2) | A(dst));
162 return push_inst(compiler, INS_CLEAR_LEFT(dst, src2, 0));
163 }
164 else {
165 SLJIT_ASSERT(dst == src2);
166 }
167 return SLJIT_SUCCESS;
168
169 case SLJIT_MOV_U8:
170 case SLJIT_MOV_S8:
171 SLJIT_ASSERT(src1 == TMP_REG1);
172 if ((flags & (REG_DEST | REG2_SOURCE)) == (REG_DEST | REG2_SOURCE)) {
173 if (op == SLJIT_MOV_S8)
174 return push_inst(compiler, EXTSB | S(src2) | A(dst));
175 return push_inst(compiler, INS_CLEAR_LEFT(dst, src2, 24));
176 }
177 else if ((flags & REG_DEST) && op == SLJIT_MOV_S8)
178 return push_inst(compiler, EXTSB | S(src2) | A(dst));
179 else {
180 SLJIT_ASSERT(dst == src2);
181 }
182 return SLJIT_SUCCESS;
183
184 case SLJIT_MOV_U16:
185 case SLJIT_MOV_S16:
186 SLJIT_ASSERT(src1 == TMP_REG1);
187 if ((flags & (REG_DEST | REG2_SOURCE)) == (REG_DEST | REG2_SOURCE)) {
188 if (op == SLJIT_MOV_S16)
189 return push_inst(compiler, EXTSH | S(src2) | A(dst));
190 return push_inst(compiler, INS_CLEAR_LEFT(dst, src2, 16));
191 }
192 else {
193 SLJIT_ASSERT(dst == src2);
194 }
195 return SLJIT_SUCCESS;
196
197 case SLJIT_NOT:
198 SLJIT_ASSERT(src1 == TMP_REG1);
199 UN_EXTS();
200 return push_inst(compiler, NOR | RC(flags) | S(src2) | A(dst) | B(src2));
201
202 case SLJIT_CLZ:
203 SLJIT_ASSERT(src1 == TMP_REG1);
204 if (flags & ALT_FORM1)
205 return push_inst(compiler, CNTLZW | S(src2) | A(dst));
206 return push_inst(compiler, CNTLZD | S(src2) | A(dst));
207
208 case SLJIT_ADD:
209 if (flags & ALT_FORM1) {
210 if (flags & ALT_SIGN_EXT) {
211 FAIL_IF(push_inst(compiler, RLDI(TMP_REG1, src1, 32, 31, 1)));
212 src1 = TMP_REG1;
213 FAIL_IF(push_inst(compiler, RLDI(TMP_REG2, src2, 32, 31, 1)));
214 src2 = TMP_REG2;
215 }
216 /* Setting XER SO is not enough, CR SO is also needed. */
217 FAIL_IF(push_inst(compiler, ADD | OE(ALT_SET_FLAGS) | RC(ALT_SET_FLAGS) | D(dst) | A(src1) | B(src2)));
218 if (flags & ALT_SIGN_EXT)
219 return push_inst(compiler, RLDI(dst, dst, 32, 32, 0));
220 return SLJIT_SUCCESS;
221 }
222
223 if (flags & ALT_FORM2) {
224 /* Flags does not set: BIN_IMM_EXTS unnecessary. */
225 SLJIT_ASSERT(src2 == TMP_REG2);
226
227 if (flags & ALT_FORM3)
228 return push_inst(compiler, ADDIS | D(dst) | A(src1) | compiler->imm);
229
230 if (flags & ALT_FORM4) {
231 FAIL_IF(push_inst(compiler, ADDIS | D(dst) | A(src1) | (((compiler->imm >> 16) & 0xffff) + ((compiler->imm >> 15) & 0x1))));
232 src1 = dst;
233 }
234
235 return push_inst(compiler, ADDI | D(dst) | A(src1) | (compiler->imm & 0xffff));
236 }
237 if (flags & ALT_FORM3) {
238 SLJIT_ASSERT(src2 == TMP_REG2);
239 BIN_IMM_EXTS();
240 return push_inst(compiler, ADDIC | D(dst) | A(src1) | compiler->imm);
241 }
242 if (flags & ALT_FORM4) {
243 if (flags & ALT_FORM5)
244 FAIL_IF(push_inst(compiler, ADDI | D(dst) | A(src1) | compiler->imm));
245 else
246 FAIL_IF(push_inst(compiler, ADD | D(dst) | A(src1) | B(src2)));
247 return push_inst(compiler, CMPI | A(dst) | 0);
248 }
249 if (!(flags & ALT_SET_FLAGS))
250 return push_inst(compiler, ADD | D(dst) | A(src1) | B(src2));
251 BIN_EXTS();
252 if (flags & ALT_FORM5)
253 return push_inst(compiler, ADDC | RC(ALT_SET_FLAGS) | D(dst) | A(src1) | B(src2));
254 return push_inst(compiler, ADD | RC(flags) | D(dst) | A(src1) | B(src2));
255
256 case SLJIT_ADDC:
257 BIN_EXTS();
258 return push_inst(compiler, ADDE | D(dst) | A(src1) | B(src2));
259
260 case SLJIT_SUB:
261 if (flags & ALT_FORM1) {
262 if (flags & ALT_FORM2) {
263 FAIL_IF(push_inst(compiler, CMPLI | CRD(0 | ((flags & ALT_SIGN_EXT) ? 0 : 1)) | A(src1) | compiler->imm));
264 if (!(flags & ALT_FORM3))
265 return SLJIT_SUCCESS;
266 return push_inst(compiler, ADDI | D(dst) | A(src1) | (-compiler->imm & 0xffff));
267 }
268 FAIL_IF(push_inst(compiler, CMPL | CRD(0 | ((flags & ALT_SIGN_EXT) ? 0 : 1)) | A(src1) | B(src2)));
269 if (!(flags & ALT_FORM3))
270 return SLJIT_SUCCESS;
271 return push_inst(compiler, SUBF | D(dst) | A(src2) | B(src1));
272 }
273
274 if (flags & ALT_FORM2) {
275 if (flags & ALT_FORM3) {
276 FAIL_IF(push_inst(compiler, CMPI | CRD(0 | ((flags & ALT_SIGN_EXT) ? 0 : 1)) | A(src1) | compiler->imm));
277 if (!(flags & ALT_FORM4))
278 return SLJIT_SUCCESS;
279 return push_inst(compiler, ADDI | D(dst) | A(src1) | (-compiler->imm & 0xffff));
280 }
281 FAIL_IF(push_inst(compiler, CMP | CRD(0 | ((flags & ALT_SIGN_EXT) ? 0 : 1)) | A(src1) | B(src2)));
282 if (!(flags & ALT_FORM4))
283 return SLJIT_SUCCESS;
284 return push_inst(compiler, SUBF | D(dst) | A(src2) | B(src1));
285 }
286
287 if (flags & ALT_FORM3) {
288 if (flags & ALT_SIGN_EXT) {
289 if (src1 != TMP_ZERO) {
290 FAIL_IF(push_inst(compiler, RLDI(TMP_REG1, src1, 32, 31, 1)));
291 src1 = TMP_REG1;
292 }
293 if (src2 != TMP_ZERO) {
294 FAIL_IF(push_inst(compiler, RLDI(TMP_REG2, src2, 32, 31, 1)));
295 src2 = TMP_REG2;
296 }
297 }
298
299 /* Setting XER SO is not enough, CR SO is also needed. */
300 if (src1 != TMP_ZERO)
301 FAIL_IF(push_inst(compiler, SUBF | OE(ALT_SET_FLAGS) | RC(ALT_SET_FLAGS) | D(dst) | A(src2) | B(src1)));
302 else
303 FAIL_IF(push_inst(compiler, NEG | OE(ALT_SET_FLAGS) | RC(ALT_SET_FLAGS) | D(dst) | A(src2)));
304
305 if (flags & ALT_SIGN_EXT)
306 return push_inst(compiler, RLDI(dst, dst, 32, 32, 0));
307 return SLJIT_SUCCESS;
308 }
309
310 if (flags & ALT_FORM4) {
311 /* Flags does not set: BIN_IMM_EXTS unnecessary. */
312 SLJIT_ASSERT(src2 == TMP_REG2);
313 return push_inst(compiler, SUBFIC | D(dst) | A(src1) | compiler->imm);
314 }
315
316 if (!(flags & ALT_SET_FLAGS)) {
317 SLJIT_ASSERT(src1 != TMP_ZERO);
318 return push_inst(compiler, SUBF | D(dst) | A(src2) | B(src1));
319 }
320
321 BIN_EXTS();
322 if (flags & ALT_FORM5)
323 return push_inst(compiler, SUBFC | RC(ALT_SET_FLAGS) | D(dst) | A(src2) | B(src1));
324
325 if (src1 != TMP_ZERO)
326 return push_inst(compiler, SUBF | RC(ALT_SET_FLAGS) | D(dst) | A(src2) | B(src1));
327 return push_inst(compiler, NEG | RC(ALT_SET_FLAGS) | D(dst) | A(src2));
328
329 case SLJIT_SUBC:
330 BIN_EXTS();
331 return push_inst(compiler, SUBFE | D(dst) | A(src2) | B(src1));
332
333 case SLJIT_MUL:
334 if (flags & ALT_FORM1) {
335 SLJIT_ASSERT(src2 == TMP_REG2);
336 return push_inst(compiler, MULLI | D(dst) | A(src1) | compiler->imm);
337 }
338 BIN_EXTS();
339 if (flags & ALT_FORM2)
340 return push_inst(compiler, MULLW | OE(flags) | RC(flags) | D(dst) | A(src2) | B(src1));
341 return push_inst(compiler, MULLD | OE(flags) | RC(flags) | D(dst) | A(src2) | B(src1));
342
343 case SLJIT_AND:
344 if (flags & ALT_FORM1) {
345 SLJIT_ASSERT(src2 == TMP_REG2);
346 return push_inst(compiler, ANDI | S(src1) | A(dst) | compiler->imm);
347 }
348 if (flags & ALT_FORM2) {
349 SLJIT_ASSERT(src2 == TMP_REG2);
350 return push_inst(compiler, ANDIS | S(src1) | A(dst) | compiler->imm);
351 }
352 return push_inst(compiler, AND | RC(flags) | S(src1) | A(dst) | B(src2));
353
354 case SLJIT_OR:
355 if (flags & ALT_FORM1) {
356 SLJIT_ASSERT(src2 == TMP_REG2);
357 return push_inst(compiler, ORI | S(src1) | A(dst) | compiler->imm);
358 }
359 if (flags & ALT_FORM2) {
360 SLJIT_ASSERT(src2 == TMP_REG2);
361 return push_inst(compiler, ORIS | S(src1) | A(dst) | compiler->imm);
362 }
363 if (flags & ALT_FORM3) {
364 SLJIT_ASSERT(src2 == TMP_REG2);
365 FAIL_IF(push_inst(compiler, ORI | S(src1) | A(dst) | IMM(compiler->imm)));
366 return push_inst(compiler, ORIS | S(dst) | A(dst) | IMM(compiler->imm >> 16));
367 }
368 return push_inst(compiler, OR | RC(flags) | S(src1) | A(dst) | B(src2));
369
370 case SLJIT_XOR:
371 if (flags & ALT_FORM1) {
372 SLJIT_ASSERT(src2 == TMP_REG2);
373 return push_inst(compiler, XORI | S(src1) | A(dst) | compiler->imm);
374 }
375 if (flags & ALT_FORM2) {
376 SLJIT_ASSERT(src2 == TMP_REG2);
377 return push_inst(compiler, XORIS | S(src1) | A(dst) | compiler->imm);
378 }
379 if (flags & ALT_FORM3) {
380 SLJIT_ASSERT(src2 == TMP_REG2);
381 FAIL_IF(push_inst(compiler, XORI | S(src1) | A(dst) | IMM(compiler->imm)));
382 return push_inst(compiler, XORIS | S(dst) | A(dst) | IMM(compiler->imm >> 16));
383 }
384 return push_inst(compiler, XOR | RC(flags) | S(src1) | A(dst) | B(src2));
385
386 case SLJIT_SHL:
387 if (flags & ALT_FORM1) {
388 SLJIT_ASSERT(src2 == TMP_REG2);
389 if (flags & ALT_FORM2) {
390 compiler->imm &= 0x1f;
391 return push_inst(compiler, RLWINM | RC(flags) | S(src1) | A(dst) | (compiler->imm << 11) | ((31 - compiler->imm) << 1));
392 }
393 compiler->imm &= 0x3f;
394 return push_inst(compiler, RLDI(dst, src1, compiler->imm, 63 - compiler->imm, 1) | RC(flags));
395 }
396 return push_inst(compiler, ((flags & ALT_FORM2) ? SLW : SLD) | RC(flags) | S(src1) | A(dst) | B(src2));
397
398 case SLJIT_LSHR:
399 if (flags & ALT_FORM1) {
400 SLJIT_ASSERT(src2 == TMP_REG2);
401 if (flags & ALT_FORM2) {
402 compiler->imm &= 0x1f;
403 return push_inst(compiler, RLWINM | RC(flags) | S(src1) | A(dst) | (((32 - compiler->imm) & 0x1f) << 11) | (compiler->imm << 6) | (31 << 1));
404 }
405 compiler->imm &= 0x3f;
406 return push_inst(compiler, RLDI(dst, src1, 64 - compiler->imm, compiler->imm, 0) | RC(flags));
407 }
408 return push_inst(compiler, ((flags & ALT_FORM2) ? SRW : SRD) | RC(flags) | S(src1) | A(dst) | B(src2));
409
410 case SLJIT_ASHR:
411 if (flags & ALT_FORM1) {
412 SLJIT_ASSERT(src2 == TMP_REG2);
413 if (flags & ALT_FORM2) {
414 compiler->imm &= 0x1f;
415 return push_inst(compiler, SRAWI | RC(flags) | S(src1) | A(dst) | (compiler->imm << 11));
416 }
417 compiler->imm &= 0x3f;
418 return push_inst(compiler, SRADI | RC(flags) | S(src1) | A(dst) | ((compiler->imm & 0x1f) << 11) | ((compiler->imm & 0x20) >> 4));
419 }
420 return push_inst(compiler, ((flags & ALT_FORM2) ? SRAW : SRAD) | RC(flags) | S(src1) | A(dst) | B(src2));
421 }
422
423 SLJIT_UNREACHABLE();
424 return SLJIT_SUCCESS;
425 }
426
call_with_args(struct sljit_compiler * compiler,sljit_s32 arg_types,sljit_s32 * src)427 static sljit_s32 call_with_args(struct sljit_compiler *compiler, sljit_s32 arg_types, sljit_s32 *src)
428 {
429 sljit_s32 arg_count = 0;
430 sljit_s32 word_arg_count = 0;
431 sljit_s32 types = 0;
432 sljit_s32 reg = 0;
433
434 if (src)
435 reg = *src & REG_MASK;
436
437 arg_types >>= SLJIT_ARG_SHIFT;
438
439 while (arg_types) {
440 types = (types << SLJIT_ARG_SHIFT) | (arg_types & SLJIT_ARG_MASK);
441
442 switch (arg_types & SLJIT_ARG_MASK) {
443 case SLJIT_ARG_TYPE_F64:
444 case SLJIT_ARG_TYPE_F32:
445 arg_count++;
446 break;
447 default:
448 arg_count++;
449 word_arg_count++;
450
451 if (arg_count != word_arg_count && arg_count == reg) {
452 FAIL_IF(push_inst(compiler, OR | S(reg) | A(TMP_CALL_REG) | B(reg)));
453 *src = TMP_CALL_REG;
454 }
455 break;
456 }
457
458 arg_types >>= SLJIT_ARG_SHIFT;
459 }
460
461 while (types) {
462 switch (types & SLJIT_ARG_MASK) {
463 case SLJIT_ARG_TYPE_F64:
464 case SLJIT_ARG_TYPE_F32:
465 arg_count--;
466 break;
467 default:
468 if (arg_count != word_arg_count)
469 FAIL_IF(push_inst(compiler, OR | S(word_arg_count) | A(arg_count) | B(word_arg_count)));
470
471 arg_count--;
472 word_arg_count--;
473 break;
474 }
475
476 types >>= SLJIT_ARG_SHIFT;
477 }
478
479 return SLJIT_SUCCESS;
480 }
481
emit_const(struct sljit_compiler * compiler,sljit_s32 reg,sljit_sw init_value)482 static SLJIT_INLINE sljit_s32 emit_const(struct sljit_compiler *compiler, sljit_s32 reg, sljit_sw init_value)
483 {
484 FAIL_IF(push_inst(compiler, ADDIS | D(reg) | A(0) | IMM(init_value >> 48)));
485 FAIL_IF(push_inst(compiler, ORI | S(reg) | A(reg) | IMM(init_value >> 32)));
486 FAIL_IF(PUSH_RLDICR(reg, 31));
487 FAIL_IF(push_inst(compiler, ORIS | S(reg) | A(reg) | IMM(init_value >> 16)));
488 return push_inst(compiler, ORI | S(reg) | A(reg) | IMM(init_value));
489 }
490
sljit_set_jump_addr(sljit_uw addr,sljit_uw new_target,sljit_sw executable_offset)491 SLJIT_API_FUNC_ATTRIBUTE void sljit_set_jump_addr(sljit_uw addr, sljit_uw new_target, sljit_sw executable_offset)
492 {
493 sljit_ins *inst = (sljit_ins*)addr;
494 SLJIT_UNUSED_ARG(executable_offset);
495
496 SLJIT_UPDATE_WX_FLAGS(inst, inst + 5, 0);
497 inst[0] = (inst[0] & 0xffff0000u) | ((sljit_ins)(new_target >> 48) & 0xffff);
498 inst[1] = (inst[1] & 0xffff0000u) | ((sljit_ins)(new_target >> 32) & 0xffff);
499 inst[3] = (inst[3] & 0xffff0000u) | ((sljit_ins)(new_target >> 16) & 0xffff);
500 inst[4] = (inst[4] & 0xffff0000u) | ((sljit_ins)new_target & 0xffff);
501 SLJIT_UPDATE_WX_FLAGS(inst, inst + 5, 1);
502 inst = (sljit_ins *)SLJIT_ADD_EXEC_OFFSET(inst, executable_offset);
503 SLJIT_CACHE_FLUSH(inst, inst + 5);
504 }
505
sljit_set_const(sljit_uw addr,sljit_sw new_constant,sljit_sw executable_offset)506 SLJIT_API_FUNC_ATTRIBUTE void sljit_set_const(sljit_uw addr, sljit_sw new_constant, sljit_sw executable_offset)
507 {
508 sljit_set_jump_addr(addr, (sljit_uw)new_constant, executable_offset);
509 }
510
