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 = (imm >= 0) ? imm : ~imm;
61 ASM_SLJIT_CLZ(tmp, shift);
62 SLJIT_ASSERT(shift > 0);
63 shift--;
64 tmp = (imm << shift);
65
66 if ((tmp & ~0xffff000000000000ul) == 0) {
67 FAIL_IF(push_inst(compiler, ADDI | D(reg) | A(0) | IMM(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) | IMM(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 = imm & ((1ul << (63 - shift)) - 1);
82
83 if (tmp2 <= 0xffff) {
84 FAIL_IF(push_inst(compiler, ADDI | D(reg) | A(0) | IMM(tmp >> 48)));
85 FAIL_IF(PUSH_RLDICR(reg, shift));
86 return push_inst(compiler, ORI | S(reg) | A(reg) | 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) | (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) | IMM(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) | (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) | IMM(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_NEG:
203 SLJIT_ASSERT(src1 == TMP_REG1);
204
205 if ((flags & (ALT_FORM1 | ALT_SIGN_EXT)) == (ALT_FORM1 | ALT_SIGN_EXT)) {
206 FAIL_IF(push_inst(compiler, RLDI(TMP_REG2, src2, 32, 31, 1)));
207 FAIL_IF(push_inst(compiler, NEG | OE(ALT_SET_FLAGS) | RC(ALT_SET_FLAGS) | D(dst) | A(TMP_REG2)));
208 return push_inst(compiler, RLDI(dst, dst, 32, 32, 0));
209 }
210
211 UN_EXTS();
212 /* Setting XER SO is not enough, CR SO is also needed. */
213 return push_inst(compiler, NEG | OE((flags & ALT_FORM1) ? ALT_SET_FLAGS : 0) | RC(flags) | D(dst) | A(src2));
214
215 case SLJIT_CLZ:
216 SLJIT_ASSERT(src1 == TMP_REG1);
217 if (flags & ALT_FORM1)
218 return push_inst(compiler, CNTLZW | S(src2) | A(dst));
219 return push_inst(compiler, CNTLZD | S(src2) | A(dst));
220
221 case SLJIT_ADD:
222 if (flags & ALT_FORM1) {
223 if (flags & ALT_SIGN_EXT) {
224 FAIL_IF(push_inst(compiler, RLDI(TMP_REG1, src1, 32, 31, 1)));
225 src1 = TMP_REG1;
226 FAIL_IF(push_inst(compiler, RLDI(TMP_REG2, src2, 32, 31, 1)));
227 src2 = TMP_REG2;
228 }
229 /* Setting XER SO is not enough, CR SO is also needed. */
230 FAIL_IF(push_inst(compiler, ADD | OE(ALT_SET_FLAGS) | RC(ALT_SET_FLAGS) | D(dst) | A(src1) | B(src2)));
231 if (flags & ALT_SIGN_EXT)
232 return push_inst(compiler, RLDI(dst, dst, 32, 32, 0));
233 return SLJIT_SUCCESS;
234 }
235
236 if (flags & ALT_FORM2) {
237 /* Flags does not set: BIN_IMM_EXTS unnecessary. */
238 SLJIT_ASSERT(src2 == TMP_REG2);
239
240 if (flags & ALT_FORM3)
241 return push_inst(compiler, ADDIS | D(dst) | A(src1) | compiler->imm);
242
243 if (flags & ALT_FORM4) {
244 FAIL_IF(push_inst(compiler, ADDIS | D(dst) | A(src1) | (((compiler->imm >> 16) & 0xffff) + ((compiler->imm >> 15) & 0x1))));
245 src1 = dst;
246 }
247
248 return push_inst(compiler, ADDI | D(dst) | A(src1) | (compiler->imm & 0xffff));
249 }
250 if (flags & ALT_FORM3) {
251 SLJIT_ASSERT(src2 == TMP_REG2);
252 BIN_IMM_EXTS();
253 return push_inst(compiler, ADDIC | D(dst) | A(src1) | compiler->imm);
254 }
255 if (!(flags & ALT_SET_FLAGS))
256 return push_inst(compiler, ADD | D(dst) | A(src1) | B(src2));
257 BIN_EXTS();
258 if (flags & ALT_FORM4)
259 return push_inst(compiler, ADDC | RC(ALT_SET_FLAGS) | D(dst) | A(src1) | B(src2));
260 return push_inst(compiler, ADD | RC(flags) | D(dst) | A(src1) | B(src2));
261
262 case SLJIT_ADDC:
263 BIN_EXTS();
264 return push_inst(compiler, ADDE | D(dst) | A(src1) | B(src2));
265
266 case SLJIT_SUB:
267 if (flags & ALT_FORM1) {
268 if (flags & ALT_FORM2) {
269 FAIL_IF(push_inst(compiler, CMPLI | CRD(0 | ((flags & ALT_SIGN_EXT) ? 0 : 1)) | A(src1) | compiler->imm));
270 if (!(flags & ALT_FORM3))
271 return SLJIT_SUCCESS;
272 return push_inst(compiler, ADDI | D(dst) | A(src1) | (-compiler->imm & 0xffff));
273 }
274 FAIL_IF(push_inst(compiler, CMPL | CRD(0 | ((flags & ALT_SIGN_EXT) ? 0 : 1)) | A(src1) | B(src2)));
275 if (!(flags & ALT_FORM3))
276 return SLJIT_SUCCESS;
277 return push_inst(compiler, SUBF | D(dst) | A(src2) | B(src1));
278 }
279
280 if (flags & ALT_FORM2) {
281 if (flags & ALT_SIGN_EXT) {
282 FAIL_IF(push_inst(compiler, RLDI(TMP_REG1, src1, 32, 31, 1)));
283 src1 = TMP_REG1;
284 FAIL_IF(push_inst(compiler, RLDI(TMP_REG2, src2, 32, 31, 1)));
285 src2 = TMP_REG2;
286 }
287 /* Setting XER SO is not enough, CR SO is also needed. */
288 FAIL_IF(push_inst(compiler, SUBF | OE(ALT_SET_FLAGS) | RC(ALT_SET_FLAGS) | D(dst) | A(src2) | B(src1)));
289 if (flags & ALT_SIGN_EXT)
290 return push_inst(compiler, RLDI(dst, dst, 32, 32, 0));
291 return SLJIT_SUCCESS;
292 }
293
294 if (flags & ALT_FORM3) {
295 /* Flags does not set: BIN_IMM_EXTS unnecessary. */
296 SLJIT_ASSERT(src2 == TMP_REG2);
297 return push_inst(compiler, SUBFIC | D(dst) | A(src1) | compiler->imm);
298 }
299
300 if (flags & ALT_FORM4) {
301 if (flags & ALT_FORM5) {
302 SLJIT_ASSERT(src2 == TMP_REG2);
303 return push_inst(compiler, CMPI | CRD(0 | ((flags & ALT_SIGN_EXT) ? 0 : 1)) | A(src1) | compiler->imm);
304 }
305 return push_inst(compiler, CMP | CRD(0 | ((flags & ALT_SIGN_EXT) ? 0 : 1)) | A(src1) | B(src2));
306 }
307
308 if (!(flags & ALT_SET_FLAGS))
309 return push_inst(compiler, SUBF | D(dst) | A(src2) | B(src1));
310 BIN_EXTS();
311 if (flags & ALT_FORM5)
312 return push_inst(compiler, SUBFC | RC(ALT_SET_FLAGS) | D(dst) | A(src2) | B(src1));
313 return push_inst(compiler, SUBF | RC(flags) | D(dst) | A(src2) | B(src1));
314
315 case SLJIT_SUBC:
316 BIN_EXTS();
317 return push_inst(compiler, SUBFE | D(dst) | A(src2) | B(src1));
318
319 case SLJIT_MUL:
320 if (flags & ALT_FORM1) {
321 SLJIT_ASSERT(src2 == TMP_REG2);
322 return push_inst(compiler, MULLI | D(dst) | A(src1) | compiler->imm);
323 }
324 BIN_EXTS();
325 if (flags & ALT_FORM2)
326 return push_inst(compiler, MULLW | OE(flags) | RC(flags) | D(dst) | A(src2) | B(src1));
327 return push_inst(compiler, MULLD | OE(flags) | RC(flags) | D(dst) | A(src2) | B(src1));
328
329 case SLJIT_AND:
330 if (flags & ALT_FORM1) {
331 SLJIT_ASSERT(src2 == TMP_REG2);
332 return push_inst(compiler, ANDI | S(src1) | A(dst) | compiler->imm);
333 }
334 if (flags & ALT_FORM2) {
335 SLJIT_ASSERT(src2 == TMP_REG2);
336 return push_inst(compiler, ANDIS | S(src1) | A(dst) | compiler->imm);
337 }
338 return push_inst(compiler, AND | RC(flags) | S(src1) | A(dst) | B(src2));
339
340 case SLJIT_OR:
341 if (flags & ALT_FORM1) {
342 SLJIT_ASSERT(src2 == TMP_REG2);
343 return push_inst(compiler, ORI | S(src1) | A(dst) | compiler->imm);
344 }
345 if (flags & ALT_FORM2) {
346 SLJIT_ASSERT(src2 == TMP_REG2);
347 return push_inst(compiler, ORIS | S(src1) | A(dst) | compiler->imm);
348 }
349 if (flags & ALT_FORM3) {
350 SLJIT_ASSERT(src2 == TMP_REG2);
351 FAIL_IF(push_inst(compiler, ORI | S(src1) | A(dst) | IMM(compiler->imm)));
352 return push_inst(compiler, ORIS | S(dst) | A(dst) | IMM(compiler->imm >> 16));
353 }
354 return push_inst(compiler, OR | RC(flags) | S(src1) | A(dst) | B(src2));
355
356 case SLJIT_XOR:
357 if (flags & ALT_FORM1) {
358 SLJIT_ASSERT(src2 == TMP_REG2);
359 return push_inst(compiler, XORI | S(src1) | A(dst) | compiler->imm);
360 }
361 if (flags & ALT_FORM2) {
362 SLJIT_ASSERT(src2 == TMP_REG2);
363 return push_inst(compiler, XORIS | S(src1) | A(dst) | compiler->imm);
364 }
365 if (flags & ALT_FORM3) {
366 SLJIT_ASSERT(src2 == TMP_REG2);
367 FAIL_IF(push_inst(compiler, XORI | S(src1) | A(dst) | IMM(compiler->imm)));
368 return push_inst(compiler, XORIS | S(dst) | A(dst) | IMM(compiler->imm >> 16));
369 }
370 return push_inst(compiler, XOR | RC(flags) | S(src1) | A(dst) | B(src2));
371
372 case SLJIT_SHL:
373 if (flags & ALT_FORM1) {
374 SLJIT_ASSERT(src2 == TMP_REG2);
375 if (flags & ALT_FORM2) {
376 compiler->imm &= 0x1f;
377 return push_inst(compiler, RLWINM | RC(flags) | S(src1) | A(dst) | (compiler->imm << 11) | ((31 - compiler->imm) << 1));
378 }
379 compiler->imm &= 0x3f;
380 return push_inst(compiler, RLDI(dst, src1, compiler->imm, 63 - compiler->imm, 1) | RC(flags));
381 }
382 return push_inst(compiler, ((flags & ALT_FORM2) ? SLW : SLD) | RC(flags) | S(src1) | A(dst) | B(src2));
383
384 case SLJIT_LSHR:
385 if (flags & ALT_FORM1) {
386 SLJIT_ASSERT(src2 == TMP_REG2);
387 if (flags & ALT_FORM2) {
388 compiler->imm &= 0x1f;
389 return push_inst(compiler, RLWINM | RC(flags) | S(src1) | A(dst) | (((32 - compiler->imm) & 0x1f) << 11) | (compiler->imm << 6) | (31 << 1));
390 }
391 compiler->imm &= 0x3f;
392 return push_inst(compiler, RLDI(dst, src1, 64 - compiler->imm, compiler->imm, 0) | RC(flags));
393 }
394 return push_inst(compiler, ((flags & ALT_FORM2) ? SRW : SRD) | RC(flags) | S(src1) | A(dst) | B(src2));
395
396 case SLJIT_ASHR:
397 if (flags & ALT_FORM1) {
398 SLJIT_ASSERT(src2 == TMP_REG2);
399 if (flags & ALT_FORM2) {
400 compiler->imm &= 0x1f;
401 return push_inst(compiler, SRAWI | RC(flags) | S(src1) | A(dst) | (compiler->imm << 11));
402 }
403 compiler->imm &= 0x3f;
404 return push_inst(compiler, SRADI | RC(flags) | S(src1) | A(dst) | ((compiler->imm & 0x1f) << 11) | ((compiler->imm & 0x20) >> 4));
405 }
406 return push_inst(compiler, ((flags & ALT_FORM2) ? SRAW : SRAD) | RC(flags) | S(src1) | A(dst) | B(src2));
407 }
408
409 SLJIT_UNREACHABLE();
410 return SLJIT_SUCCESS;
411 }
412
call_with_args(struct sljit_compiler * compiler,sljit_s32 arg_types,sljit_s32 * src)413 static sljit_s32 call_with_args(struct sljit_compiler *compiler, sljit_s32 arg_types, sljit_s32 *src)
414 {
415 sljit_s32 arg_count = 0;
416 sljit_s32 word_arg_count = 0;
417 sljit_s32 types = 0;
418 sljit_s32 reg = 0;
419
420 if (src)
421 reg = *src & REG_MASK;
422
423 arg_types >>= SLJIT_DEF_SHIFT;
424
425 while (arg_types) {
426 types = (types << SLJIT_DEF_SHIFT) | (arg_types & SLJIT_DEF_MASK);
427
428 switch (arg_types & SLJIT_DEF_MASK) {
429 case SLJIT_ARG_TYPE_F32:
430 case SLJIT_ARG_TYPE_F64:
431 arg_count++;
432 break;
433 default:
434 arg_count++;
435 word_arg_count++;
436
437 if (arg_count != word_arg_count && arg_count == reg) {
438 FAIL_IF(push_inst(compiler, OR | S(reg) | A(TMP_CALL_REG) | B(reg)));
439 *src = TMP_CALL_REG;
440 }
441 break;
442 }
443
444 arg_types >>= SLJIT_DEF_SHIFT;
445 }
446
447 while (types) {
448 switch (types & SLJIT_DEF_MASK) {
449 case SLJIT_ARG_TYPE_F32:
450 case SLJIT_ARG_TYPE_F64:
451 arg_count--;
452 break;
453 default:
454 if (arg_count != word_arg_count)
455 FAIL_IF(push_inst(compiler, OR | S(word_arg_count) | A(arg_count) | B(word_arg_count)));
456
457 arg_count--;
458 word_arg_count--;
459 break;
460 }
461
462 types >>= SLJIT_DEF_SHIFT;
463 }
464
465 return SLJIT_SUCCESS;
466 }
467
emit_const(struct sljit_compiler * compiler,sljit_s32 reg,sljit_sw init_value)468 static SLJIT_INLINE sljit_s32 emit_const(struct sljit_compiler *compiler, sljit_s32 reg, sljit_sw init_value)
469 {
470 FAIL_IF(push_inst(compiler, ADDIS | D(reg) | A(0) | IMM(init_value >> 48)));
471 FAIL_IF(push_inst(compiler, ORI | S(reg) | A(reg) | IMM(init_value >> 32)));
472 FAIL_IF(PUSH_RLDICR(reg, 31));
473 FAIL_IF(push_inst(compiler, ORIS | S(reg) | A(reg) | IMM(init_value >> 16)));
474 return push_inst(compiler, ORI | S(reg) | A(reg) | IMM(init_value));
475 }
476
sljit_set_jump_addr(sljit_uw addr,sljit_uw new_target,sljit_sw executable_offset)477 SLJIT_API_FUNC_ATTRIBUTE void sljit_set_jump_addr(sljit_uw addr, sljit_uw new_target, sljit_sw executable_offset)
478 {
479 sljit_ins *inst = (sljit_ins*)addr;
480
481 inst[0] = (inst[0] & 0xffff0000) | ((new_target >> 48) & 0xffff);
482 inst[1] = (inst[1] & 0xffff0000) | ((new_target >> 32) & 0xffff);
483 inst[3] = (inst[3] & 0xffff0000) | ((new_target >> 16) & 0xffff);
484 inst[4] = (inst[4] & 0xffff0000) | (new_target & 0xffff);
485 inst = (sljit_ins *)SLJIT_ADD_EXEC_OFFSET(inst, executable_offset);
486 SLJIT_CACHE_FLUSH(inst, inst + 5);
487 }
488
sljit_set_const(sljit_uw addr,sljit_sw new_constant,sljit_sw executable_offset)489 SLJIT_API_FUNC_ATTRIBUTE void sljit_set_const(sljit_uw addr, sljit_sw new_constant, sljit_sw executable_offset)
490 {
491 sljit_ins *inst = (sljit_ins*)addr;
492
493 inst[0] = (inst[0] & 0xffff0000) | ((new_constant >> 48) & 0xffff);
494 inst[1] = (inst[1] & 0xffff0000) | ((new_constant >> 32) & 0xffff);
495 inst[3] = (inst[3] & 0xffff0000) | ((new_constant >> 16) & 0xffff);
496 inst[4] = (inst[4] & 0xffff0000) | (new_constant & 0xffff);
497 inst = (sljit_ins *)SLJIT_ADD_EXEC_OFFSET(inst, executable_offset);
498 SLJIT_CACHE_FLUSH(inst, inst + 5);
499 }
500
