Annotation of win32/pcre/sljit/sljitNativeARM_Thumb2.c, revision 1.1
1.1 ! misha 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 "ARM-Thumb2" SLJIT_CPUINFO;
! 30: }
! 31:
! 32: /* Last register + 1. */
! 33: #define TMP_REG1 (SLJIT_NO_REGISTERS + 1)
! 34: #define TMP_REG2 (SLJIT_NO_REGISTERS + 2)
! 35: #define TMP_REG3 (SLJIT_NO_REGISTERS + 3)
! 36: #define TMP_PC (SLJIT_NO_REGISTERS + 4)
! 37:
! 38: #define TMP_FREG1 (SLJIT_FLOAT_REG4 + 1)
! 39: #define TMP_FREG2 (SLJIT_FLOAT_REG4 + 2)
! 40:
! 41: /* See sljit_emit_enter and sljit_emit_op0 if you want to change them. */
! 42: static SLJIT_CONST sljit_ub reg_map[SLJIT_NO_REGISTERS + 5] = {
! 43: 0, 0, 1, 2, 12, 5, 6, 7, 8, 10, 11, 13, 3, 4, 14, 15
! 44: };
! 45:
! 46: #define COPY_BITS(src, from, to, bits) \
! 47: ((from >= to ? (src >> (from - to)) : (src << (to - from))) & (((1 << bits) - 1) << to))
! 48:
! 49: /* Thumb16 encodings. */
! 50: #define RD3(rd) (reg_map[rd])
! 51: #define RN3(rn) (reg_map[rn] << 3)
! 52: #define RM3(rm) (reg_map[rm] << 6)
! 53: #define RDN3(rdn) (reg_map[rdn] << 8)
! 54: #define IMM3(imm) (imm << 6)
! 55: #define IMM8(imm) (imm)
! 56:
! 57: /* Thumb16 helpers. */
! 58: #define SET_REGS44(rd, rn) \
! 59: ((reg_map[rn] << 3) | (reg_map[rd] & 0x7) | ((reg_map[rd] & 0x8) << 4))
! 60: #define IS_2_LO_REGS(reg1, reg2) \
! 61: (reg_map[reg1] <= 7 && reg_map[reg2] <= 7)
! 62: #define IS_3_LO_REGS(reg1, reg2, reg3) \
! 63: (reg_map[reg1] <= 7 && reg_map[reg2] <= 7 && reg_map[reg3] <= 7)
! 64:
! 65: /* Thumb32 encodings. */
! 66: #define RD4(rd) (reg_map[rd] << 8)
! 67: #define RN4(rn) (reg_map[rn] << 16)
! 68: #define RM4(rm) (reg_map[rm])
! 69: #define RT4(rt) (reg_map[rt] << 12)
! 70: #define DD4(dd) ((dd) << 12)
! 71: #define DN4(dn) ((dn) << 16)
! 72: #define DM4(dm) (dm)
! 73: #define IMM5(imm) \
! 74: (COPY_BITS(imm, 2, 12, 3) | ((imm & 0x3) << 6))
! 75: #define IMM12(imm) \
! 76: (COPY_BITS(imm, 11, 26, 1) | COPY_BITS(imm, 8, 12, 3) | (imm & 0xff))
! 77:
! 78: typedef sljit_ui sljit_ins;
! 79:
! 80: /* --------------------------------------------------------------------- */
! 81: /* Instrucion forms */
! 82: /* --------------------------------------------------------------------- */
! 83:
! 84: /* dot '.' changed to _
! 85: I immediate form (possibly followed by number of immediate bits). */
! 86: #define ADCI 0xf1400000
! 87: #define ADCS 0x4140
! 88: #define ADC_W 0xeb400000
! 89: #define ADD 0x4400
! 90: #define ADDS 0x1800
! 91: #define ADDSI3 0x1c00
! 92: #define ADDSI8 0x3000
! 93: #define ADD_W 0xeb000000
! 94: #define ADDWI 0xf2000000
! 95: #define ADD_SP 0xb000
! 96: #define ADD_W 0xeb000000
! 97: #define ADD_WI 0xf1000000
! 98: #define ANDI 0xf0000000
! 99: #define ANDS 0x4000
! 100: #define AND_W 0xea000000
! 101: #define ASRS 0x4100
! 102: #define ASRSI 0x1000
! 103: #define ASR_W 0xfa40f000
! 104: #define ASR_WI 0xea4f0020
! 105: #define BICI 0xf0200000
! 106: #define BKPT 0xbe00
! 107: #define BLX 0x4780
! 108: #define BX 0x4700
! 109: #define CLZ 0xfab0f080
! 110: #define CMPI 0x2800
! 111: #define CMP_W 0xebb00f00
! 112: #define EORI 0xf0800000
! 113: #define EORS 0x4040
! 114: #define EOR_W 0xea800000
! 115: #define IT 0xbf00
! 116: #define LSLS 0x4080
! 117: #define LSLSI 0x0000
! 118: #define LSL_W 0xfa00f000
! 119: #define LSL_WI 0xea4f0000
! 120: #define LSRS 0x40c0
! 121: #define LSRSI 0x0800
! 122: #define LSR_W 0xfa20f000
! 123: #define LSR_WI 0xea4f0010
! 124: #define MOV 0x4600
! 125: #define MOVS 0x0000
! 126: #define MOVSI 0x2000
! 127: #define MOVT 0xf2c00000
! 128: #define MOVW 0xf2400000
! 129: #define MOV_W 0xea4f0000
! 130: #define MOV_WI 0xf04f0000
! 131: #define MUL 0xfb00f000
! 132: #define MVNS 0x43c0
! 133: #define MVN_W 0xea6f0000
! 134: #define MVN_WI 0xf06f0000
! 135: #define NOP 0xbf00
! 136: #define ORNI 0xf0600000
! 137: #define ORRI 0xf0400000
! 138: #define ORRS 0x4300
! 139: #define ORR_W 0xea400000
! 140: #define POP 0xbd00
! 141: #define POP_W 0xe8bd0000
! 142: #define PUSH 0xb500
! 143: #define PUSH_W 0xe92d0000
! 144: #define RSB_WI 0xf1c00000
! 145: #define RSBSI 0x4240
! 146: #define SBCI 0xf1600000
! 147: #define SBCS 0x4180
! 148: #define SBC_W 0xeb600000
! 149: #define SMULL 0xfb800000
! 150: #define STR_SP 0x9000
! 151: #define SUBS 0x1a00
! 152: #define SUBSI3 0x1e00
! 153: #define SUBSI8 0x3800
! 154: #define SUB_W 0xeba00000
! 155: #define SUBWI 0xf2a00000
! 156: #define SUB_SP 0xb080
! 157: #define SUB_WI 0xf1a00000
! 158: #define SXTB 0xb240
! 159: #define SXTB_W 0xfa4ff080
! 160: #define SXTH 0xb200
! 161: #define SXTH_W 0xfa0ff080
! 162: #define TST 0x4200
! 163: #define UMULL 0xfba00000
! 164: #define UXTB 0xb2c0
! 165: #define UXTB_W 0xfa5ff080
! 166: #define UXTH 0xb280
! 167: #define UXTH_W 0xfa1ff080
! 168: #define VABS_F64 0xeeb00bc0
! 169: #define VADD_F64 0xee300b00
! 170: #define VCMP_F64 0xeeb40b40
! 171: #define VDIV_F64 0xee800b00
! 172: #define VMOV_F64 0xeeb00b40
! 173: #define VMRS 0xeef1fa10
! 174: #define VMUL_F64 0xee200b00
! 175: #define VNEG_F64 0xeeb10b40
! 176: #define VSTR 0xed000b00
! 177: #define VSUB_F64 0xee300b40
! 178:
! 179: static int push_inst16(struct sljit_compiler *compiler, sljit_ins inst)
! 180: {
! 181: sljit_uh *ptr;
! 182: SLJIT_ASSERT(!(inst & 0xffff0000));
! 183:
! 184: ptr = (sljit_uh*)ensure_buf(compiler, sizeof(sljit_uh));
! 185: FAIL_IF(!ptr);
! 186: *ptr = inst;
! 187: compiler->size++;
! 188: return SLJIT_SUCCESS;
! 189: }
! 190:
! 191: static int push_inst32(struct sljit_compiler *compiler, sljit_ins inst)
! 192: {
! 193: sljit_uh *ptr = (sljit_uh*)ensure_buf(compiler, sizeof(sljit_ins));
! 194: FAIL_IF(!ptr);
! 195: *ptr++ = inst >> 16;
! 196: *ptr = inst;
! 197: compiler->size += 2;
! 198: return SLJIT_SUCCESS;
! 199: }
! 200:
! 201: static SLJIT_INLINE int emit_imm32_const(struct sljit_compiler *compiler, int dst, sljit_uw imm)
! 202: {
! 203: FAIL_IF(push_inst32(compiler, MOVW | RD4(dst) |
! 204: COPY_BITS(imm, 12, 16, 4) | COPY_BITS(imm, 11, 26, 1) | COPY_BITS(imm, 8, 12, 3) | (imm & 0xff)));
! 205: return push_inst32(compiler, MOVT | RD4(dst) |
! 206: COPY_BITS(imm, 12 + 16, 16, 4) | COPY_BITS(imm, 11 + 16, 26, 1) | COPY_BITS(imm, 8 + 16, 12, 3) | ((imm & 0xff0000) >> 16));
! 207: }
! 208:
! 209: static SLJIT_INLINE void modify_imm32_const(sljit_uh* inst, sljit_uw new_imm)
! 210: {
! 211: int dst = inst[1] & 0x0f00;
! 212: SLJIT_ASSERT(((inst[0] & 0xfbf0) == (MOVW >> 16)) && ((inst[2] & 0xfbf0) == (MOVT >> 16)) && dst == (inst[3] & 0x0f00));
! 213: inst[0] = (MOVW >> 16) | COPY_BITS(new_imm, 12, 0, 4) | COPY_BITS(new_imm, 11, 10, 1);
! 214: inst[1] = dst | COPY_BITS(new_imm, 8, 12, 3) | (new_imm & 0xff);
! 215: inst[2] = (MOVT >> 16) | COPY_BITS(new_imm, 12 + 16, 0, 4) | COPY_BITS(new_imm, 11 + 16, 10, 1);
! 216: inst[3] = dst | COPY_BITS(new_imm, 8 + 16, 12, 3) | ((new_imm & 0xff0000) >> 16);
! 217: }
! 218:
! 219: static SLJIT_INLINE int detect_jump_type(struct sljit_jump *jump, sljit_uh *code_ptr, sljit_uh *code)
! 220: {
! 221: sljit_w diff;
! 222:
! 223: if (jump->flags & SLJIT_REWRITABLE_JUMP)
! 224: return 0;
! 225:
! 226: if (jump->flags & JUMP_ADDR) {
! 227: /* Branch to ARM code is not optimized yet. */
! 228: if (!(jump->u.target & 0x1))
! 229: return 0;
! 230: diff = ((sljit_w)jump->u.target - (sljit_w)(code_ptr + 2)) >> 1;
! 231: }
! 232: else {
! 233: SLJIT_ASSERT(jump->flags & JUMP_LABEL);
! 234: diff = ((sljit_w)(code + jump->u.label->size) - (sljit_w)(code_ptr + 2)) >> 1;
! 235: }
! 236:
! 237: if (jump->flags & IS_CONDITIONAL) {
! 238: SLJIT_ASSERT(!(jump->flags & IS_BL));
! 239: if (diff <= 127 && diff >= -128) {
! 240: jump->flags |= B_TYPE1;
! 241: return 5;
! 242: }
! 243: if (diff <= 524287 && diff >= -524288) {
! 244: jump->flags |= B_TYPE2;
! 245: return 4;
! 246: }
! 247: /* +1 comes from the prefix IT instruction. */
! 248: diff--;
! 249: if (diff <= 8388607 && diff >= -8388608) {
! 250: jump->flags |= B_TYPE3;
! 251: return 3;
! 252: }
! 253: }
! 254: else if (jump->flags & IS_BL) {
! 255: if (diff <= 8388607 && diff >= -8388608) {
! 256: jump->flags |= BL_TYPE6;
! 257: return 3;
! 258: }
! 259: }
! 260: else {
! 261: if (diff <= 1023 && diff >= -1024) {
! 262: jump->flags |= B_TYPE4;
! 263: return 4;
! 264: }
! 265: if (diff <= 8388607 && diff >= -8388608) {
! 266: jump->flags |= B_TYPE5;
! 267: return 3;
! 268: }
! 269: }
! 270:
! 271: return 0;
! 272: }
! 273:
! 274: static SLJIT_INLINE void inline_set_jump_addr(sljit_uw addr, sljit_uw new_addr, int flush)
! 275: {
! 276: sljit_uh* inst = (sljit_uh*)addr;
! 277: modify_imm32_const(inst, new_addr);
! 278: if (flush) {
! 279: SLJIT_CACHE_FLUSH(inst, inst + 3);
! 280: }
! 281: }
! 282:
! 283: static SLJIT_INLINE void set_jump_instruction(struct sljit_jump *jump)
! 284: {
! 285: int type = (jump->flags >> 4) & 0xf;
! 286: sljit_w diff;
! 287: sljit_uh *jump_inst;
! 288: int s, j1, j2;
! 289:
! 290: if (SLJIT_UNLIKELY(type == 0)) {
! 291: inline_set_jump_addr(jump->addr, (jump->flags & JUMP_LABEL) ? jump->u.label->addr : jump->u.target, 0);
! 292: return;
! 293: }
! 294:
! 295: if (jump->flags & JUMP_ADDR) {
! 296: SLJIT_ASSERT(jump->u.target & 0x1);
! 297: diff = ((sljit_w)jump->u.target - (sljit_w)(jump->addr + 4)) >> 1;
! 298: }
! 299: else
! 300: diff = ((sljit_w)(jump->u.label->addr) - (sljit_w)(jump->addr + 4)) >> 1;
! 301: jump_inst = (sljit_uh*)jump->addr;
! 302:
! 303: switch (type) {
! 304: case 1:
! 305: /* Encoding T1 of 'B' instruction */
! 306: SLJIT_ASSERT(diff <= 127 && diff >= -128 && (jump->flags & IS_CONDITIONAL));
! 307: jump_inst[0] = 0xd000 | (jump->flags & 0xf00) | (diff & 0xff);
! 308: return;
! 309: case 2:
! 310: /* Encoding T3 of 'B' instruction */
! 311: SLJIT_ASSERT(diff <= 524287 && diff >= -524288 && (jump->flags & IS_CONDITIONAL));
! 312: jump_inst[0] = 0xf000 | COPY_BITS(jump->flags, 8, 6, 4) | COPY_BITS(diff, 11, 0, 6) | COPY_BITS(diff, 19, 10, 1);
! 313: jump_inst[1] = 0x8000 | COPY_BITS(diff, 17, 13, 1) | COPY_BITS(diff, 18, 11, 1) | (diff & 0x7ff);
! 314: return;
! 315: case 3:
! 316: SLJIT_ASSERT(jump->flags & IS_CONDITIONAL);
! 317: *jump_inst++ = IT | ((jump->flags >> 4) & 0xf0) | 0x8;
! 318: diff--;
! 319: type = 5;
! 320: break;
! 321: case 4:
! 322: /* Encoding T2 of 'B' instruction */
! 323: SLJIT_ASSERT(diff <= 1023 && diff >= -1024 && !(jump->flags & IS_CONDITIONAL));
! 324: jump_inst[0] = 0xe000 | (diff & 0x7ff);
! 325: return;
! 326: }
! 327:
! 328: SLJIT_ASSERT(diff <= 8388607 && diff >= -8388608);
! 329:
! 330: /* Really complex instruction form for branches. */
! 331: s = (diff >> 23) & 0x1;
! 332: j1 = (~(diff >> 21) ^ s) & 0x1;
! 333: j2 = (~(diff >> 22) ^ s) & 0x1;
! 334: jump_inst[0] = 0xf000 | (s << 10) | COPY_BITS(diff, 11, 0, 10);
! 335: jump_inst[1] = (j1 << 13) | (j2 << 11) | (diff & 0x7ff);
! 336:
! 337: /* The others have a common form. */
! 338: if (type == 5) /* Encoding T4 of 'B' instruction */
! 339: jump_inst[1] |= 0x9000;
! 340: else if (type == 6) /* Encoding T1 of 'BL' instruction */
! 341: jump_inst[1] |= 0xd000;
! 342: else
! 343: SLJIT_ASSERT_STOP();
! 344: }
! 345:
! 346: SLJIT_API_FUNC_ATTRIBUTE void* sljit_generate_code(struct sljit_compiler *compiler)
! 347: {
! 348: struct sljit_memory_fragment *buf;
! 349: sljit_uh *code;
! 350: sljit_uh *code_ptr;
! 351: sljit_uh *buf_ptr;
! 352: sljit_uh *buf_end;
! 353: sljit_uw half_count;
! 354:
! 355: struct sljit_label *label;
! 356: struct sljit_jump *jump;
! 357: struct sljit_const *const_;
! 358:
! 359: CHECK_ERROR_PTR();
! 360: check_sljit_generate_code(compiler);
! 361: reverse_buf(compiler);
! 362:
! 363: code = (sljit_uh*)SLJIT_MALLOC_EXEC(compiler->size * sizeof(sljit_uh));
! 364: PTR_FAIL_WITH_EXEC_IF(code);
! 365: buf = compiler->buf;
! 366:
! 367: code_ptr = code;
! 368: half_count = 0;
! 369: label = compiler->labels;
! 370: jump = compiler->jumps;
! 371: const_ = compiler->consts;
! 372:
! 373: do {
! 374: buf_ptr = (sljit_uh*)buf->memory;
! 375: buf_end = buf_ptr + (buf->used_size >> 1);
! 376: do {
! 377: *code_ptr = *buf_ptr++;
! 378: /* These structures are ordered by their address. */
! 379: SLJIT_ASSERT(!label || label->size >= half_count);
! 380: SLJIT_ASSERT(!jump || jump->addr >= half_count);
! 381: SLJIT_ASSERT(!const_ || const_->addr >= half_count);
! 382: if (label && label->size == half_count) {
! 383: label->addr = ((sljit_uw)code_ptr) | 0x1;
! 384: label->size = code_ptr - code;
! 385: label = label->next;
! 386: }
! 387: if (jump && jump->addr == half_count) {
! 388: jump->addr = (sljit_uw)code_ptr - ((jump->flags & IS_CONDITIONAL) ? 10 : 8);
! 389: code_ptr -= detect_jump_type(jump, code_ptr, code);
! 390: jump = jump->next;
! 391: }
! 392: if (const_ && const_->addr == half_count) {
! 393: const_->addr = (sljit_uw)code_ptr;
! 394: const_ = const_->next;
! 395: }
! 396: code_ptr ++;
! 397: half_count ++;
! 398: } while (buf_ptr < buf_end);
! 399:
! 400: buf = buf->next;
! 401: } while (buf);
! 402:
! 403: if (label && label->size == half_count) {
! 404: label->addr = ((sljit_uw)code_ptr) | 0x1;
! 405: label->size = code_ptr - code;
! 406: label = label->next;
! 407: }
! 408:
! 409: SLJIT_ASSERT(!label);
! 410: SLJIT_ASSERT(!jump);
! 411: SLJIT_ASSERT(!const_);
! 412: SLJIT_ASSERT(code_ptr - code <= (int)compiler->size);
! 413:
! 414: jump = compiler->jumps;
! 415: while (jump) {
! 416: set_jump_instruction(jump);
! 417: jump = jump->next;
! 418: }
! 419:
! 420: SLJIT_CACHE_FLUSH(code, code_ptr);
! 421: compiler->error = SLJIT_ERR_COMPILED;
! 422: compiler->executable_size = compiler->size * sizeof(sljit_uh);
! 423: /* Set thumb mode flag. */
! 424: return (void*)((sljit_uw)code | 0x1);
! 425: }
! 426:
! 427: #define INVALID_IMM 0x80000000
! 428: static sljit_uw get_imm(sljit_uw imm)
! 429: {
! 430: /* Thumb immediate form. */
! 431: int counter;
! 432:
! 433: if (imm <= 0xff)
! 434: return imm;
! 435:
! 436: if ((imm & 0xffff) == (imm >> 16)) {
! 437: /* Some special cases. */
! 438: if (!(imm & 0xff00))
! 439: return (1 << 12) | (imm & 0xff);
! 440: if (!(imm & 0xff))
! 441: return (2 << 12) | ((imm >> 8) & 0xff);
! 442: if ((imm & 0xff00) == ((imm & 0xff) << 8))
! 443: return (3 << 12) | (imm & 0xff);
! 444: }
! 445:
! 446: /* Assembly optimization: count leading zeroes? */
! 447: counter = 8;
! 448: if (!(imm & 0xffff0000)) {
! 449: counter += 16;
! 450: imm <<= 16;
! 451: }
! 452: if (!(imm & 0xff000000)) {
! 453: counter += 8;
! 454: imm <<= 8;
! 455: }
! 456: if (!(imm & 0xf0000000)) {
! 457: counter += 4;
! 458: imm <<= 4;
! 459: }
! 460: if (!(imm & 0xc0000000)) {
! 461: counter += 2;
! 462: imm <<= 2;
! 463: }
! 464: if (!(imm & 0x80000000)) {
! 465: counter += 1;
! 466: imm <<= 1;
! 467: }
! 468: /* Since imm >= 128, this must be true. */
! 469: SLJIT_ASSERT(counter <= 31);
! 470:
! 471: if (imm & 0x00ffffff)
! 472: return INVALID_IMM; /* Cannot be encoded. */
! 473:
! 474: return ((imm >> 24) & 0x7f) | COPY_BITS(counter, 4, 26, 1) | COPY_BITS(counter, 1, 12, 3) | COPY_BITS(counter, 0, 7, 1);
! 475: }
! 476:
! 477: static int load_immediate(struct sljit_compiler *compiler, int dst, sljit_uw imm)
! 478: {
! 479: sljit_uw tmp;
! 480:
! 481: if (imm >= 0x10000) {
! 482: tmp = get_imm(imm);
! 483: if (tmp != INVALID_IMM)
! 484: return push_inst32(compiler, MOV_WI | RD4(dst) | tmp);
! 485: tmp = get_imm(~imm);
! 486: if (tmp != INVALID_IMM)
! 487: return push_inst32(compiler, MVN_WI | RD4(dst) | tmp);
! 488: }
! 489:
! 490: /* set low 16 bits, set hi 16 bits to 0. */
! 491: FAIL_IF(push_inst32(compiler, MOVW | RD4(dst) |
! 492: COPY_BITS(imm, 12, 16, 4) | COPY_BITS(imm, 11, 26, 1) | COPY_BITS(imm, 8, 12, 3) | (imm & 0xff)));
! 493:
! 494: /* set hi 16 bit if needed. */
! 495: if (imm >= 0x10000)
! 496: return push_inst32(compiler, MOVT | RD4(dst) |
! 497: COPY_BITS(imm, 12 + 16, 16, 4) | COPY_BITS(imm, 11 + 16, 26, 1) | COPY_BITS(imm, 8 + 16, 12, 3) | ((imm & 0xff0000) >> 16));
! 498: return SLJIT_SUCCESS;
! 499: }
! 500:
! 501: #define ARG1_IMM 0x0010000
! 502: #define ARG2_IMM 0x0020000
! 503: #define KEEP_FLAGS 0x0040000
! 504: #define SET_MULOV 0x0080000
! 505: /* SET_FLAGS must be 0x100000 as it is also the value of S bit (can be used for optimization). */
! 506: #define SET_FLAGS 0x0100000
! 507: #define UNUSED_RETURN 0x0200000
! 508: #define SLOW_DEST 0x0400000
! 509: #define SLOW_SRC1 0x0800000
! 510: #define SLOW_SRC2 0x1000000
! 511:
! 512: static int emit_op_imm(struct sljit_compiler *compiler, int flags, int dst, sljit_uw arg1, sljit_uw arg2)
! 513: {
! 514: /* dst must be register, TMP_REG1
! 515: arg1 must be register, TMP_REG1, imm
! 516: arg2 must be register, TMP_REG2, imm */
! 517: int reg;
! 518: sljit_uw imm;
! 519:
! 520: if (SLJIT_UNLIKELY((flags & (ARG1_IMM | ARG2_IMM)) == (ARG1_IMM | ARG2_IMM))) {
! 521: /* Both are immediates. */
! 522: flags &= ~ARG1_IMM;
! 523: FAIL_IF(load_immediate(compiler, TMP_REG1, arg1));
! 524: arg1 = TMP_REG1;
! 525: }
! 526:
! 527: if (flags & (ARG1_IMM | ARG2_IMM)) {
! 528: reg = (flags & ARG2_IMM) ? arg1 : arg2;
! 529: imm = (flags & ARG2_IMM) ? arg2 : arg1;
! 530:
! 531: switch (flags & 0xffff) {
! 532: case SLJIT_MOV:
! 533: SLJIT_ASSERT(!(flags & SET_FLAGS) && (flags & ARG2_IMM) && arg1 == TMP_REG1);
! 534: return load_immediate(compiler, dst, imm);
! 535: case SLJIT_NOT:
! 536: if (!(flags & SET_FLAGS))
! 537: return load_immediate(compiler, dst, ~imm);
! 538: /* Since the flags should be set, we just fallback to the register mode.
! 539: Although I could do some clever things here, "NOT IMM" does not worth the efforts. */
! 540: break;
! 541: case SLJIT_CLZ:
! 542: /* No form with immediate operand. */
! 543: break;
! 544: case SLJIT_ADD:
! 545: if (!(flags & KEEP_FLAGS) && IS_2_LO_REGS(reg, dst)) {
! 546: if (imm <= 0x7)
! 547: return push_inst16(compiler, ADDSI3 | IMM3(imm) | RD3(dst) | RN3(reg));
! 548: if (reg == dst && imm <= 0xff)
! 549: return push_inst16(compiler, ADDSI8 | IMM8(imm) | RDN3(dst));
! 550: }
! 551: if (imm <= 0xfff && !(flags & SET_FLAGS))
! 552: return push_inst32(compiler, ADDWI | RD4(dst) | RN4(reg) | IMM12(imm));
! 553: imm = get_imm(imm);
! 554: if (imm != INVALID_IMM)
! 555: return push_inst32(compiler, ADD_WI | (flags & SET_FLAGS) | RD4(dst) | RN4(reg) | imm);
! 556: break;
! 557: case SLJIT_ADDC:
! 558: imm = get_imm(imm);
! 559: if (imm != INVALID_IMM)
! 560: return push_inst32(compiler, ADCI | (flags & SET_FLAGS) | RD4(dst) | RN4(reg) | imm);
! 561: break;
! 562: case SLJIT_SUB:
! 563: if (flags & ARG2_IMM) {
! 564: if (!(flags & KEEP_FLAGS) && IS_2_LO_REGS(reg, dst)) {
! 565: if (imm <= 0x7)
! 566: return push_inst16(compiler, SUBSI3 | IMM3(imm) | RD3(dst) | RN3(reg));
! 567: if (imm <= 0xff) {
! 568: if (reg == dst)
! 569: return push_inst16(compiler, SUBSI8 | IMM8(imm) | RDN3(dst));
! 570: if (flags & UNUSED_RETURN)
! 571: return push_inst16(compiler, CMPI | IMM8(imm) | RDN3(reg));
! 572: }
! 573: }
! 574: if (imm <= 0xfff && !(flags & SET_FLAGS))
! 575: return push_inst32(compiler, SUBWI | RD4(dst) | RN4(reg) | IMM12(imm));
! 576: imm = get_imm(imm);
! 577: if (imm != INVALID_IMM)
! 578: return push_inst32(compiler, SUB_WI | (flags & SET_FLAGS) | RD4(dst) | RN4(reg) | imm);
! 579: }
! 580: else {
! 581: if (!(flags & KEEP_FLAGS) && imm == 0 && IS_2_LO_REGS(reg, dst))
! 582: return push_inst16(compiler, RSBSI | RD3(dst) | RN3(reg));
! 583: imm = get_imm(imm);
! 584: if (imm != INVALID_IMM)
! 585: return push_inst32(compiler, RSB_WI | (flags & SET_FLAGS) | RD4(dst) | RN4(reg) | imm);
! 586: }
! 587: break;
! 588: case SLJIT_SUBC:
! 589: if (flags & ARG2_IMM) {
! 590: imm = get_imm(imm);
! 591: if (imm != INVALID_IMM)
! 592: return push_inst32(compiler, SBCI | (flags & SET_FLAGS) | RD4(dst) | RN4(reg) | imm);
! 593: }
! 594: break;
! 595: case SLJIT_MUL:
! 596: /* No form with immediate operand. */
! 597: break;
! 598: case SLJIT_AND:
! 599: imm = get_imm(imm);
! 600: if (imm != INVALID_IMM)
! 601: return push_inst32(compiler, ANDI | (flags & SET_FLAGS) | RD4(dst) | RN4(reg) | imm);
! 602: imm = get_imm(~((flags & ARG2_IMM) ? arg2 : arg1));
! 603: if (imm != INVALID_IMM)
! 604: return push_inst32(compiler, BICI | (flags & SET_FLAGS) | RD4(dst) | RN4(reg) | imm);
! 605: break;
! 606: case SLJIT_OR:
! 607: imm = get_imm(imm);
! 608: if (imm != INVALID_IMM)
! 609: return push_inst32(compiler, ORRI | (flags & SET_FLAGS) | RD4(dst) | RN4(reg) | imm);
! 610: imm = get_imm(~((flags & ARG2_IMM) ? arg2 : arg1));
! 611: if (imm != INVALID_IMM)
! 612: return push_inst32(compiler, ORNI | (flags & SET_FLAGS) | RD4(dst) | RN4(reg) | imm);
! 613: break;
! 614: case SLJIT_XOR:
! 615: imm = get_imm(imm);
! 616: if (imm != INVALID_IMM)
! 617: return push_inst32(compiler, EORI | (flags & SET_FLAGS) | RD4(dst) | RN4(reg) | imm);
! 618: break;
! 619: case SLJIT_SHL:
! 620: if (flags & ARG2_IMM) {
! 621: imm &= 0x1f;
! 622: if (imm == 0) {
! 623: if (!(flags & SET_FLAGS))
! 624: return push_inst16(compiler, MOV | SET_REGS44(dst, reg));
! 625: if (IS_2_LO_REGS(dst, reg))
! 626: return push_inst16(compiler, MOVS | RD3(dst) | RN3(reg));
! 627: return push_inst32(compiler, MOV_W | SET_FLAGS | RD4(dst) | RM4(reg));
! 628: }
! 629: if (!(flags & KEEP_FLAGS) && IS_2_LO_REGS(dst, reg))
! 630: return push_inst16(compiler, LSLSI | RD3(dst) | RN3(reg) | (imm << 6));
! 631: return push_inst32(compiler, LSL_WI | (flags & SET_FLAGS) | RD4(dst) | RM4(reg) | IMM5(imm));
! 632: }
! 633: break;
! 634: case SLJIT_LSHR:
! 635: if (flags & ARG2_IMM) {
! 636: imm &= 0x1f;
! 637: if (imm == 0) {
! 638: if (!(flags & SET_FLAGS))
! 639: return push_inst16(compiler, MOV | SET_REGS44(dst, reg));
! 640: if (IS_2_LO_REGS(dst, reg))
! 641: return push_inst16(compiler, MOVS | RD3(dst) | RN3(reg));
! 642: return push_inst32(compiler, MOV_W | SET_FLAGS | RD4(dst) | RM4(reg));
! 643: }
! 644: if (!(flags & KEEP_FLAGS) && IS_2_LO_REGS(dst, reg))
! 645: return push_inst16(compiler, LSRSI | RD3(dst) | RN3(reg) | (imm << 6));
! 646: return push_inst32(compiler, LSR_WI | (flags & SET_FLAGS) | RD4(dst) | RM4(reg) | IMM5(imm));
! 647: }
! 648: break;
! 649: case SLJIT_ASHR:
! 650: if (flags & ARG2_IMM) {
! 651: imm &= 0x1f;
! 652: if (imm == 0) {
! 653: if (!(flags & SET_FLAGS))
! 654: return push_inst16(compiler, MOV | SET_REGS44(dst, reg));
! 655: if (IS_2_LO_REGS(dst, reg))
! 656: return push_inst16(compiler, MOVS | RD3(dst) | RN3(reg));
! 657: return push_inst32(compiler, MOV_W | SET_FLAGS | RD4(dst) | RM4(reg));
! 658: }
! 659: if (!(flags & KEEP_FLAGS) && IS_2_LO_REGS(dst, reg))
! 660: return push_inst16(compiler, ASRSI | RD3(dst) | RN3(reg) | (imm << 6));
! 661: return push_inst32(compiler, ASR_WI | (flags & SET_FLAGS) | RD4(dst) | RM4(reg) | IMM5(imm));
! 662: }
! 663: break;
! 664: default:
! 665: SLJIT_ASSERT_STOP();
! 666: break;
! 667: }
! 668:
! 669: if (flags & ARG2_IMM) {
! 670: FAIL_IF(load_immediate(compiler, TMP_REG2, arg2));
! 671: arg2 = TMP_REG2;
! 672: }
! 673: else {
! 674: FAIL_IF(load_immediate(compiler, TMP_REG1, arg1));
! 675: arg1 = TMP_REG1;
! 676: }
! 677: }
! 678:
! 679: /* Both arguments are registers. */
! 680: switch (flags & 0xffff) {
! 681: case SLJIT_MOV:
! 682: case SLJIT_MOV_UI:
! 683: case SLJIT_MOV_SI:
! 684: case SLJIT_MOVU:
! 685: case SLJIT_MOVU_UI:
! 686: case SLJIT_MOVU_SI:
! 687: SLJIT_ASSERT(!(flags & SET_FLAGS) && arg1 == TMP_REG1);
! 688: return push_inst16(compiler, MOV | SET_REGS44(dst, arg2));
! 689: case SLJIT_MOV_UB:
! 690: case SLJIT_MOVU_UB:
! 691: SLJIT_ASSERT(!(flags & SET_FLAGS) && arg1 == TMP_REG1);
! 692: if (IS_2_LO_REGS(dst, arg2))
! 693: return push_inst16(compiler, UXTB | RD3(dst) | RN3(arg2));
! 694: return push_inst32(compiler, UXTB_W | RD4(dst) | RM4(arg2));
! 695: case SLJIT_MOV_SB:
! 696: case SLJIT_MOVU_SB:
! 697: SLJIT_ASSERT(!(flags & SET_FLAGS) && arg1 == TMP_REG1);
! 698: if (IS_2_LO_REGS(dst, arg2))
! 699: return push_inst16(compiler, SXTB | RD3(dst) | RN3(arg2));
! 700: return push_inst32(compiler, SXTB_W | RD4(dst) | RM4(arg2));
! 701: case SLJIT_MOV_UH:
! 702: case SLJIT_MOVU_UH:
! 703: SLJIT_ASSERT(!(flags & SET_FLAGS) && arg1 == TMP_REG1);
! 704: if (IS_2_LO_REGS(dst, arg2))
! 705: return push_inst16(compiler, UXTH | RD3(dst) | RN3(arg2));
! 706: return push_inst32(compiler, UXTH_W | RD4(dst) | RM4(arg2));
! 707: case SLJIT_MOV_SH:
! 708: case SLJIT_MOVU_SH:
! 709: SLJIT_ASSERT(!(flags & SET_FLAGS) && arg1 == TMP_REG1);
! 710: if (IS_2_LO_REGS(dst, arg2))
! 711: return push_inst16(compiler, SXTH | RD3(dst) | RN3(arg2));
! 712: return push_inst32(compiler, SXTH_W | RD4(dst) | RM4(arg2));
! 713: case SLJIT_NOT:
! 714: SLJIT_ASSERT(arg1 == TMP_REG1);
! 715: if (!(flags & KEEP_FLAGS) && IS_2_LO_REGS(dst, arg2))
! 716: return push_inst16(compiler, MVNS | RD3(dst) | RN3(arg2));
! 717: return push_inst32(compiler, MVN_W | (flags & SET_FLAGS) | RD4(dst) | RM4(arg2));
! 718: case SLJIT_CLZ:
! 719: SLJIT_ASSERT(arg1 == TMP_REG1);
! 720: FAIL_IF(push_inst32(compiler, CLZ | RN4(arg2) | RD4(dst) | RM4(arg2)));
! 721: if (flags & SET_FLAGS) {
! 722: if (reg_map[dst] <= 7)
! 723: return push_inst16(compiler, CMPI | RDN3(dst));
! 724: return push_inst32(compiler, ADD_WI | SET_FLAGS | RN4(dst) | RD4(dst));
! 725: }
! 726: return SLJIT_SUCCESS;
! 727: case SLJIT_ADD:
! 728: if (!(flags & KEEP_FLAGS) && IS_3_LO_REGS(dst, arg1, arg2))
! 729: return push_inst16(compiler, ADDS | RD3(dst) | RN3(arg1) | RM3(arg2));
! 730: if (dst == arg1 && !(flags & SET_FLAGS))
! 731: return push_inst16(compiler, ADD | SET_REGS44(dst, arg2));
! 732: return push_inst32(compiler, ADD_W | (flags & SET_FLAGS) | RD4(dst) | RN4(arg1) | RM4(arg2));
! 733: case SLJIT_ADDC:
! 734: if (dst == arg1 && !(flags & KEEP_FLAGS) && IS_2_LO_REGS(dst, arg2))
! 735: return push_inst16(compiler, ADCS | RD3(dst) | RN3(arg2));
! 736: return push_inst32(compiler, ADC_W | (flags & SET_FLAGS) | RD4(dst) | RN4(arg1) | RM4(arg2));
! 737: case SLJIT_SUB:
! 738: if (!(flags & KEEP_FLAGS) && IS_3_LO_REGS(dst, arg1, arg2))
! 739: return push_inst16(compiler, SUBS | RD3(dst) | RN3(arg1) | RM3(arg2));
! 740: return push_inst32(compiler, SUB_W | (flags & SET_FLAGS) | RD4(dst) | RN4(arg1) | RM4(arg2));
! 741: case SLJIT_SUBC:
! 742: if (dst == arg1 && !(flags & KEEP_FLAGS) && IS_2_LO_REGS(dst, arg2))
! 743: return push_inst16(compiler, SBCS | RD3(dst) | RN3(arg2));
! 744: return push_inst32(compiler, SBC_W | (flags & SET_FLAGS) | RD4(dst) | RN4(arg1) | RM4(arg2));
! 745: case SLJIT_MUL:
! 746: if (!(flags & SET_FLAGS))
! 747: return push_inst32(compiler, MUL | RD4(dst) | RN4(arg1) | RM4(arg2));
! 748: SLJIT_ASSERT(reg_map[TMP_REG2] <= 7 && dst != TMP_REG2);
! 749: FAIL_IF(push_inst32(compiler, SMULL | RT4(dst) | RD4(TMP_REG2) | RN4(arg1) | RM4(arg2)));
! 750: /* cmp TMP_REG2, dst asr #31. */
! 751: return push_inst32(compiler, CMP_W | RN4(TMP_REG2) | 0x70e0 | RM4(dst));
! 752: case SLJIT_AND:
! 753: if (!(flags & KEEP_FLAGS)) {
! 754: if (dst == arg1 && IS_2_LO_REGS(dst, arg2))
! 755: return push_inst16(compiler, ANDS | RD3(dst) | RN3(arg2));
! 756: if ((flags & UNUSED_RETURN) && IS_2_LO_REGS(arg1, arg2))
! 757: return push_inst16(compiler, TST | RD3(arg1) | RN3(arg2));
! 758: }
! 759: return push_inst32(compiler, AND_W | (flags & SET_FLAGS) | RD4(dst) | RN4(arg1) | RM4(arg2));
! 760: case SLJIT_OR:
! 761: if (dst == arg1 && !(flags & KEEP_FLAGS) && IS_2_LO_REGS(dst, arg2))
! 762: return push_inst16(compiler, ORRS | RD3(dst) | RN3(arg2));
! 763: return push_inst32(compiler, ORR_W | (flags & SET_FLAGS) | RD4(dst) | RN4(arg1) | RM4(arg2));
! 764: case SLJIT_XOR:
! 765: if (dst == arg1 && !(flags & KEEP_FLAGS) && IS_2_LO_REGS(dst, arg2))
! 766: return push_inst16(compiler, EORS | RD3(dst) | RN3(arg2));
! 767: return push_inst32(compiler, EOR_W | (flags & SET_FLAGS) | RD4(dst) | RN4(arg1) | RM4(arg2));
! 768: case SLJIT_SHL:
! 769: if (dst == arg1 && !(flags & KEEP_FLAGS) && IS_2_LO_REGS(dst, arg2))
! 770: return push_inst16(compiler, LSLS | RD3(dst) | RN3(arg2));
! 771: return push_inst32(compiler, LSL_W | (flags & SET_FLAGS) | RD4(dst) | RN4(arg1) | RM4(arg2));
! 772: case SLJIT_LSHR:
! 773: if (dst == arg1 && !(flags & KEEP_FLAGS) && IS_2_LO_REGS(dst, arg2))
! 774: return push_inst16(compiler, LSRS | RD3(dst) | RN3(arg2));
! 775: return push_inst32(compiler, LSR_W | (flags & SET_FLAGS) | RD4(dst) | RN4(arg1) | RM4(arg2));
! 776: case SLJIT_ASHR:
! 777: if (dst == arg1 && !(flags & KEEP_FLAGS) && IS_2_LO_REGS(dst, arg2))
! 778: return push_inst16(compiler, ASRS | RD3(dst) | RN3(arg2));
! 779: return push_inst32(compiler, ASR_W | (flags & SET_FLAGS) | RD4(dst) | RN4(arg1) | RM4(arg2));
! 780: }
! 781:
! 782: SLJIT_ASSERT_STOP();
! 783: return SLJIT_SUCCESS;
! 784: }
! 785:
! 786: #define STORE 0x01
! 787: #define SIGNED 0x02
! 788:
! 789: #define WORD_SIZE 0x00
! 790: #define BYTE_SIZE 0x04
! 791: #define HALF_SIZE 0x08
! 792:
! 793: #define UPDATE 0x10
! 794: #define ARG_TEST 0x20
! 795:
! 796: #define IS_WORD_SIZE(flags) (!(flags & (BYTE_SIZE | HALF_SIZE)))
! 797: #define OFFSET_CHECK(imm, shift) (!(argw & ~(imm << shift)))
! 798:
! 799: /*
! 800: 1st letter:
! 801: w = word
! 802: b = byte
! 803: h = half
! 804:
! 805: 2nd letter:
! 806: s = signed
! 807: u = unsigned
! 808:
! 809: 3rd letter:
! 810: l = load
! 811: s = store
! 812: */
! 813:
! 814: static SLJIT_CONST sljit_uw sljit_mem16[12] = {
! 815: /* w u l */ 0x5800 /* ldr */,
! 816: /* w u s */ 0x5000 /* str */,
! 817: /* w s l */ 0x5800 /* ldr */,
! 818: /* w s s */ 0x5000 /* str */,
! 819:
! 820: /* b u l */ 0x5c00 /* ldrb */,
! 821: /* b u s */ 0x5400 /* strb */,
! 822: /* b s l */ 0x5600 /* ldrsb */,
! 823: /* b s s */ 0x5400 /* strb */,
! 824:
! 825: /* h u l */ 0x5a00 /* ldrh */,
! 826: /* h u s */ 0x5200 /* strh */,
! 827: /* h s l */ 0x5e00 /* ldrsh */,
! 828: /* h s s */ 0x5200 /* strh */,
! 829: };
! 830:
! 831: static SLJIT_CONST sljit_uw sljit_mem16_imm5[12] = {
! 832: /* w u l */ 0x6800 /* ldr imm5 */,
! 833: /* w u s */ 0x6000 /* str imm5 */,
! 834: /* w s l */ 0x6800 /* ldr imm5 */,
! 835: /* w s s */ 0x6000 /* str imm5 */,
! 836:
! 837: /* b u l */ 0x7800 /* ldrb imm5 */,
! 838: /* b u s */ 0x7000 /* strb imm5 */,
! 839: /* b s l */ 0x0000 /* not allowed */,
! 840: /* b s s */ 0x7000 /* strb imm5 */,
! 841:
! 842: /* h u l */ 0x8800 /* ldrh imm5 */,
! 843: /* h u s */ 0x8000 /* strh imm5 */,
! 844: /* h s l */ 0x0000 /* not allowed */,
! 845: /* h s s */ 0x8000 /* strh imm5 */,
! 846: };
! 847:
! 848: #define MEM_IMM8 0xc00
! 849: #define MEM_IMM12 0x800000
! 850: static SLJIT_CONST sljit_uw sljit_mem32[12] = {
! 851: /* w u l */ 0xf8500000 /* ldr.w */,
! 852: /* w u s */ 0xf8400000 /* str.w */,
! 853: /* w s l */ 0xf8500000 /* ldr.w */,
! 854: /* w s s */ 0xf8400000 /* str.w */,
! 855:
! 856: /* b u l */ 0xf8100000 /* ldrb.w */,
! 857: /* b u s */ 0xf8000000 /* strb.w */,
! 858: /* b s l */ 0xf9100000 /* ldrsb.w */,
! 859: /* b s s */ 0xf8000000 /* strb.w */,
! 860:
! 861: /* h u l */ 0xf8300000 /* ldrh.w */,
! 862: /* h u s */ 0xf8200000 /* strsh.w */,
! 863: /* h s l */ 0xf9300000 /* ldrsh.w */,
! 864: /* h s s */ 0xf8200000 /* strsh.w */,
! 865: };
! 866:
! 867: /* Helper function. Dst should be reg + value, using at most 1 instruction, flags does not set. */
! 868: static int emit_set_delta(struct sljit_compiler *compiler, int dst, int reg, sljit_w value)
! 869: {
! 870: if (value >= 0) {
! 871: if (value <= 0xfff)
! 872: return push_inst32(compiler, ADDWI | RD4(dst) | RN4(reg) | IMM12(value));
! 873: value = get_imm(value);
! 874: if (value != INVALID_IMM)
! 875: return push_inst32(compiler, ADD_WI | RD4(dst) | RN4(reg) | value);
! 876: }
! 877: else {
! 878: value = -value;
! 879: if (value <= 0xfff)
! 880: return push_inst32(compiler, SUBWI | RD4(dst) | RN4(reg) | IMM12(value));
! 881: value = get_imm(value);
! 882: if (value != INVALID_IMM)
! 883: return push_inst32(compiler, SUB_WI | RD4(dst) | RN4(reg) | value);
! 884: }
! 885: return SLJIT_ERR_UNSUPPORTED;
! 886: }
! 887:
! 888: /* Can perform an operation using at most 1 instruction. */
! 889: static int getput_arg_fast(struct sljit_compiler *compiler, int flags, int reg, int arg, sljit_w argw)
! 890: {
! 891: int tmp;
! 892:
! 893: SLJIT_ASSERT(arg & SLJIT_MEM);
! 894:
! 895: if (SLJIT_UNLIKELY(flags & UPDATE)) {
! 896: if ((arg & 0xf) && !(arg & 0xf0) && argw <= 0xff && argw >= -0xff) {
! 897: flags &= ~UPDATE;
! 898: arg &= 0xf;
! 899: if (SLJIT_UNLIKELY(flags & ARG_TEST))
! 900: return 1;
! 901:
! 902: if (argw >= 0)
! 903: argw |= 0x200;
! 904: else {
! 905: argw = -argw;
! 906: }
! 907: SLJIT_ASSERT(argw >= 0 && (argw & 0xff) <= 0xff);
! 908: FAIL_IF(push_inst32(compiler, sljit_mem32[flags] | MEM_IMM8 | RT4(reg) | RN4(arg) | 0x100 | argw));
! 909: return -1;
! 910: }
! 911: return (flags & ARG_TEST) ? SLJIT_SUCCESS : 0;
! 912: }
! 913:
! 914: if (SLJIT_UNLIKELY(arg & 0xf0)) {
! 915: argw &= 0x3;
! 916: tmp = (arg >> 4) & 0xf;
! 917: arg &= 0xf;
! 918: if (SLJIT_UNLIKELY(flags & ARG_TEST))
! 919: return 1;
! 920:
! 921: if (!argw && IS_3_LO_REGS(reg, arg, tmp))
! 922: FAIL_IF(push_inst16(compiler, sljit_mem16[flags] | RD3(reg) | RN3(arg) | RM3(tmp)));
! 923: else
! 924: FAIL_IF(push_inst32(compiler, sljit_mem32[flags] | RT4(reg) | RN4(arg) | RM4(tmp) | (argw << 4)));
! 925: return -1;
! 926: }
! 927:
! 928: if (!(arg & 0xf) || argw > 0xfff || argw < -0xff)
! 929: return (flags & ARG_TEST) ? SLJIT_SUCCESS : 0;
! 930:
! 931: if (SLJIT_UNLIKELY(flags & ARG_TEST))
! 932: return 1;
! 933:
! 934: arg &= 0xf;
! 935: if (IS_2_LO_REGS(reg, arg) && sljit_mem16_imm5[flags]) {
! 936: tmp = 3;
! 937: if (IS_WORD_SIZE(flags)) {
! 938: if (OFFSET_CHECK(0x1f, 2))
! 939: tmp = 2;
! 940: }
! 941: else if (flags & BYTE_SIZE)
! 942: {
! 943: if (OFFSET_CHECK(0x1f, 0))
! 944: tmp = 0;
! 945: }
! 946: else {
! 947: SLJIT_ASSERT(flags & HALF_SIZE);
! 948: if (OFFSET_CHECK(0x1f, 1))
! 949: tmp = 1;
! 950: }
! 951:
! 952: if (tmp != 3) {
! 953: FAIL_IF(push_inst16(compiler, sljit_mem16_imm5[flags] | RD3(reg) | RN3(arg) | (argw << (6 - tmp))));
! 954: return -1;
! 955: }
! 956: }
! 957:
! 958: /* SP based immediate. */
! 959: if (SLJIT_UNLIKELY(arg == SLJIT_LOCALS_REG) && OFFSET_CHECK(0xff, 2) && IS_WORD_SIZE(flags) && reg_map[reg] <= 7) {
! 960: FAIL_IF(push_inst16(compiler, STR_SP | ((flags & STORE) ? 0 : 0x800) | RDN3(reg) | (argw >> 2)));
! 961: return -1;
! 962: }
! 963:
! 964: if (argw >= 0)
! 965: FAIL_IF(push_inst32(compiler, sljit_mem32[flags] | MEM_IMM12 | RT4(reg) | RN4(arg) | argw));
! 966: else
! 967: FAIL_IF(push_inst32(compiler, sljit_mem32[flags] | MEM_IMM8 | RT4(reg) | RN4(arg) | -argw));
! 968: return -1;
! 969: }
! 970:
! 971: /* see getput_arg below.
! 972: Note: can_cache is called only for binary operators. Those
! 973: operators always uses word arguments without write back. */
! 974: static int can_cache(int arg, sljit_w argw, int next_arg, sljit_w next_argw)
! 975: {
! 976: /* Simple operation except for updates. */
! 977: if ((arg & 0xf0) || !(next_arg & SLJIT_MEM))
! 978: return 0;
! 979:
! 980: if (!(arg & 0xf)) {
! 981: if ((sljit_uw)(argw - next_argw) <= 0xfff || (sljit_uw)(next_argw - argw) <= 0xfff)
! 982: return 1;
! 983: return 0;
! 984: }
! 985:
! 986: if (argw == next_argw)
! 987: return 1;
! 988:
! 989: if (arg == next_arg && ((sljit_uw)(argw - next_argw) <= 0xfff || (sljit_uw)(next_argw - argw) <= 0xfff))
! 990: return 1;
! 991:
! 992: return 0;
! 993: }
! 994:
! 995: /* Emit the necessary instructions. See can_cache above. */
! 996: static int getput_arg(struct sljit_compiler *compiler, int flags, int reg, int arg, sljit_w argw, int next_arg, sljit_w next_argw)
! 997: {
! 998: int tmp_r;
! 999: sljit_w tmp;
! 1000:
! 1001: SLJIT_ASSERT(arg & SLJIT_MEM);
! 1002: if (!(next_arg & SLJIT_MEM)) {
! 1003: next_arg = 0;
! 1004: next_argw = 0;
! 1005: }
! 1006:
! 1007: tmp_r = (flags & STORE) ? TMP_REG3 : reg;
! 1008:
! 1009: if (SLJIT_UNLIKELY(flags & UPDATE)) {
! 1010: flags &= ~UPDATE;
! 1011: /* Update only applies if a base register exists. */
! 1012: if (arg & 0xf) {
! 1013: /* There is no caching here. */
! 1014: tmp = (arg & 0xf0) >> 4;
! 1015: arg &= 0xf;
! 1016:
! 1017: if (!tmp) {
! 1018: if (!(argw & ~0xfff)) {
! 1019: FAIL_IF(push_inst32(compiler, sljit_mem32[flags] | MEM_IMM12 | RT4(reg) | RN4(arg) | argw));
! 1020: return push_inst32(compiler, ADDWI | RD4(arg) | RN4(arg) | IMM12(argw));
! 1021: }
! 1022:
! 1023: if (compiler->cache_arg == SLJIT_MEM) {
! 1024: if (argw == compiler->cache_argw) {
! 1025: tmp = TMP_REG3;
! 1026: argw = 0;
! 1027: }
! 1028: else if (emit_set_delta(compiler, TMP_REG3, TMP_REG3, argw - compiler->cache_argw) != SLJIT_ERR_UNSUPPORTED) {
! 1029: FAIL_IF(compiler->error);
! 1030: compiler->cache_argw = argw;
! 1031: tmp = TMP_REG3;
! 1032: argw = 0;
! 1033: }
! 1034: }
! 1035:
! 1036: if (argw) {
! 1037: FAIL_IF(load_immediate(compiler, TMP_REG3, argw));
! 1038: compiler->cache_arg = SLJIT_MEM;
! 1039: compiler->cache_argw = argw;
! 1040: tmp = TMP_REG3;
! 1041: argw = 0;
! 1042: }
! 1043: }
! 1044:
! 1045: argw &= 0x3;
! 1046: if (!argw && IS_3_LO_REGS(reg, arg, tmp)) {
! 1047: FAIL_IF(push_inst16(compiler, sljit_mem16[flags] | RD3(reg) | RN3(arg) | RM3(tmp)));
! 1048: return push_inst16(compiler, ADD | SET_REGS44(arg, tmp));
! 1049: }
! 1050: FAIL_IF(push_inst32(compiler, sljit_mem32[flags] | RT4(reg) | RN4(arg) | RM4(tmp) | (argw << 4)));
! 1051: return push_inst32(compiler, ADD_W | RD4(arg) | RN4(arg) | RM4(tmp) | (argw << 6));
! 1052: }
! 1053: }
! 1054:
! 1055: SLJIT_ASSERT(!(arg & 0xf0));
! 1056:
! 1057: if (compiler->cache_arg == arg) {
! 1058: if (!((argw - compiler->cache_argw) & ~0xfff))
! 1059: return push_inst32(compiler, sljit_mem32[flags] | MEM_IMM12 | RT4(reg) | RN4(TMP_REG3) | (argw - compiler->cache_argw));
! 1060: if (!((compiler->cache_argw - argw) & ~0xff))
! 1061: return push_inst32(compiler, sljit_mem32[flags] | MEM_IMM8 | RT4(reg) | RN4(TMP_REG3) | (compiler->cache_argw - argw));
! 1062: if (emit_set_delta(compiler, TMP_REG3, TMP_REG3, argw - compiler->cache_argw) != SLJIT_ERR_UNSUPPORTED) {
! 1063: FAIL_IF(compiler->error);
! 1064: return push_inst32(compiler, sljit_mem32[flags] | MEM_IMM12 | RT4(reg) | RN4(TMP_REG3) | 0);
! 1065: }
! 1066: }
! 1067:
! 1068: next_arg = (arg & 0xf) && (arg == next_arg);
! 1069: arg &= 0xf;
! 1070: if (arg && compiler->cache_arg == SLJIT_MEM && compiler->cache_argw == argw)
! 1071: return push_inst32(compiler, sljit_mem32[flags] | RT4(reg) | RN4(arg) | RM4(TMP_REG3));
! 1072:
! 1073: compiler->cache_argw = argw;
! 1074: if (next_arg && emit_set_delta(compiler, TMP_REG3, arg, argw) != SLJIT_ERR_UNSUPPORTED) {
! 1075: FAIL_IF(compiler->error);
! 1076: compiler->cache_arg = SLJIT_MEM | arg;
! 1077: arg = 0;
! 1078: }
! 1079: else {
! 1080: FAIL_IF(load_immediate(compiler, TMP_REG3, argw));
! 1081: compiler->cache_arg = SLJIT_MEM;
! 1082:
! 1083: if (next_arg) {
! 1084: FAIL_IF(push_inst16(compiler, ADD | SET_REGS44(TMP_REG3, arg)));
! 1085: compiler->cache_arg = SLJIT_MEM | arg;
! 1086: arg = 0;
! 1087: }
! 1088: }
! 1089:
! 1090: if (arg)
! 1091: return push_inst32(compiler, sljit_mem32[flags] | RT4(reg) | RN4(arg) | RM4(TMP_REG3));
! 1092: return push_inst32(compiler, sljit_mem32[flags] | MEM_IMM12 | RT4(reg) | RN4(TMP_REG3) | 0);
! 1093: }
! 1094:
! 1095: static SLJIT_INLINE int emit_op_mem(struct sljit_compiler *compiler, int flags, int reg, int arg, sljit_w argw)
! 1096: {
! 1097: if (getput_arg_fast(compiler, flags, reg, arg, argw))
! 1098: return compiler->error;
! 1099: compiler->cache_arg = 0;
! 1100: compiler->cache_argw = 0;
! 1101: return getput_arg(compiler, flags, reg, arg, argw, 0, 0);
! 1102: }
! 1103:
! 1104: SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_enter(struct sljit_compiler *compiler, int args, int temporaries, int saveds, int local_size)
! 1105: {
! 1106: int size;
! 1107: sljit_ins push;
! 1108:
! 1109: CHECK_ERROR();
! 1110: check_sljit_emit_enter(compiler, args, temporaries, saveds, local_size);
! 1111:
! 1112: compiler->temporaries = temporaries;
! 1113: compiler->saveds = saveds;
! 1114:
! 1115: push = (1 << 4);
! 1116: if (saveds >= 5)
! 1117: push |= 1 << 11;
! 1118: if (saveds >= 4)
! 1119: push |= 1 << 10;
! 1120: if (saveds >= 3)
! 1121: push |= 1 << 8;
! 1122: if (saveds >= 2)
! 1123: push |= 1 << 7;
! 1124: if (saveds >= 1)
! 1125: push |= 1 << 6;
! 1126: if (temporaries >= 5)
! 1127: push |= 1 << 5;
! 1128: FAIL_IF(saveds >= 3
! 1129: ? push_inst32(compiler, PUSH_W | (1 << 14) | push)
! 1130: : push_inst16(compiler, PUSH | push));
! 1131:
! 1132: /* Stack must be aligned to 8 bytes: */
! 1133: size = (3 + saveds) * sizeof(sljit_uw);
! 1134: local_size += size;
! 1135: local_size = (local_size + 7) & ~7;
! 1136: local_size -= size;
! 1137: compiler->local_size = local_size;
! 1138: if (local_size > 0) {
! 1139: if (local_size <= (127 << 2))
! 1140: FAIL_IF(push_inst16(compiler, SUB_SP | (local_size >> 2)));
! 1141: else
! 1142: FAIL_IF(emit_op_imm(compiler, SLJIT_SUB | ARG2_IMM, SLJIT_LOCALS_REG, SLJIT_LOCALS_REG, local_size));
! 1143: }
! 1144:
! 1145: if (args >= 1)
! 1146: FAIL_IF(push_inst16(compiler, MOV | SET_REGS44(SLJIT_SAVED_REG1, SLJIT_TEMPORARY_REG1)));
! 1147: if (args >= 2)
! 1148: FAIL_IF(push_inst16(compiler, MOV | SET_REGS44(SLJIT_SAVED_REG2, SLJIT_TEMPORARY_REG2)));
! 1149: if (args >= 3)
! 1150: FAIL_IF(push_inst16(compiler, MOV | SET_REGS44(SLJIT_SAVED_REG3, SLJIT_TEMPORARY_REG3)));
! 1151:
! 1152: return SLJIT_SUCCESS;
! 1153: }
! 1154:
! 1155: SLJIT_API_FUNC_ATTRIBUTE void sljit_set_context(struct sljit_compiler *compiler, int args, int temporaries, int saveds, int local_size)
! 1156: {
! 1157: int size;
! 1158:
! 1159: CHECK_ERROR_VOID();
! 1160: check_sljit_set_context(compiler, args, temporaries, saveds, local_size);
! 1161:
! 1162: compiler->temporaries = temporaries;
! 1163: compiler->saveds = saveds;
! 1164:
! 1165: size = (3 + saveds) * sizeof(sljit_uw);
! 1166: local_size += size;
! 1167: local_size = (local_size + 7) & ~7;
! 1168: local_size -= size;
! 1169: compiler->local_size = local_size;
! 1170: }
! 1171:
! 1172: SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_return(struct sljit_compiler *compiler, int op, int src, sljit_w srcw)
! 1173: {
! 1174: sljit_ins pop;
! 1175:
! 1176: CHECK_ERROR();
! 1177: check_sljit_emit_return(compiler, op, src, srcw);
! 1178:
! 1179: FAIL_IF(emit_mov_before_return(compiler, op, src, srcw));
! 1180:
! 1181: if (compiler->local_size > 0) {
! 1182: if (compiler->local_size <= (127 << 2))
! 1183: FAIL_IF(push_inst16(compiler, ADD_SP | (compiler->local_size >> 2)));
! 1184: else
! 1185: FAIL_IF(emit_op_imm(compiler, SLJIT_ADD | ARG2_IMM, SLJIT_LOCALS_REG, SLJIT_LOCALS_REG, compiler->local_size));
! 1186: }
! 1187:
! 1188: pop = (1 << 4);
! 1189: if (compiler->saveds >= 5)
! 1190: pop |= 1 << 11;
! 1191: if (compiler->saveds >= 4)
! 1192: pop |= 1 << 10;
! 1193: if (compiler->saveds >= 3)
! 1194: pop |= 1 << 8;
! 1195: if (compiler->saveds >= 2)
! 1196: pop |= 1 << 7;
! 1197: if (compiler->saveds >= 1)
! 1198: pop |= 1 << 6;
! 1199: if (compiler->temporaries >= 5)
! 1200: pop |= 1 << 5;
! 1201: return compiler->saveds >= 3
! 1202: ? push_inst32(compiler, POP_W | (1 << 15) | pop)
! 1203: : push_inst16(compiler, POP | pop);
! 1204: }
! 1205:
! 1206: /* --------------------------------------------------------------------- */
! 1207: /* Operators */
! 1208: /* --------------------------------------------------------------------- */
! 1209:
! 1210: #ifdef __cplusplus
! 1211: extern "C" {
! 1212: #endif
! 1213:
! 1214: #if defined(__GNUC__)
! 1215: extern unsigned int __aeabi_uidivmod(unsigned numerator, unsigned denominator);
! 1216: extern unsigned int __aeabi_idivmod(unsigned numerator, unsigned denominator);
! 1217: #else
! 1218: #error "Software divmod functions are needed"
! 1219: #endif
! 1220:
! 1221: #ifdef __cplusplus
! 1222: }
! 1223: #endif
! 1224:
! 1225: SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_op0(struct sljit_compiler *compiler, int op)
! 1226: {
! 1227: CHECK_ERROR();
! 1228: check_sljit_emit_op0(compiler, op);
! 1229:
! 1230: op = GET_OPCODE(op);
! 1231: switch (op) {
! 1232: case SLJIT_BREAKPOINT:
! 1233: push_inst16(compiler, BKPT);
! 1234: break;
! 1235: case SLJIT_NOP:
! 1236: push_inst16(compiler, NOP);
! 1237: break;
! 1238: case SLJIT_UMUL:
! 1239: case SLJIT_SMUL:
! 1240: return push_inst32(compiler, (op == SLJIT_UMUL ? UMULL : SMULL)
! 1241: | (reg_map[SLJIT_TEMPORARY_REG2] << 8)
! 1242: | (reg_map[SLJIT_TEMPORARY_REG1] << 12)
! 1243: | (reg_map[SLJIT_TEMPORARY_REG1] << 16)
! 1244: | reg_map[SLJIT_TEMPORARY_REG2]);
! 1245: case SLJIT_UDIV:
! 1246: case SLJIT_SDIV:
! 1247: if (compiler->temporaries >= 4) {
! 1248: FAIL_IF(push_inst32(compiler, 0xf84d2d04 /* str r2, [sp, #-4]! */));
! 1249: FAIL_IF(push_inst32(compiler, 0xf84dcd04 /* str ip, [sp, #-4]! */));
! 1250: } else if (compiler->temporaries >= 3)
! 1251: FAIL_IF(push_inst32(compiler, 0xf84d2d08 /* str r2, [sp, #-8]! */));
! 1252: #if defined(__GNUC__)
! 1253: FAIL_IF(sljit_emit_ijump(compiler, SLJIT_FAST_CALL, SLJIT_IMM,
! 1254: (op == SLJIT_UDIV ? SLJIT_FUNC_OFFSET(__aeabi_uidivmod) : SLJIT_FUNC_OFFSET(__aeabi_idivmod))));
! 1255: #else
! 1256: #error "Software divmod functions are needed"
! 1257: #endif
! 1258: if (compiler->temporaries >= 4) {
! 1259: FAIL_IF(push_inst32(compiler, 0xf85dcb04 /* ldr ip, [sp], #4 */));
! 1260: return push_inst32(compiler, 0xf85d2b04 /* ldr r2, [sp], #4 */);
! 1261: } else if (compiler->temporaries >= 3)
! 1262: return push_inst32(compiler, 0xf85d2b08 /* ldr r2, [sp], #8 */);
! 1263: return SLJIT_SUCCESS;
! 1264: }
! 1265:
! 1266: return SLJIT_SUCCESS;
! 1267: }
! 1268:
! 1269: SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_op1(struct sljit_compiler *compiler, int op,
! 1270: int dst, sljit_w dstw,
! 1271: int src, sljit_w srcw)
! 1272: {
! 1273: int op_type, dst_r, flags;
! 1274:
! 1275: CHECK_ERROR();
! 1276: check_sljit_emit_op1(compiler, op, dst, dstw, src, srcw);
! 1277:
! 1278: compiler->cache_arg = 0;
! 1279: compiler->cache_argw = 0;
! 1280:
! 1281: op_type = GET_OPCODE(op);
! 1282: dst_r = (dst >= SLJIT_TEMPORARY_REG1 && dst <= SLJIT_NO_REGISTERS) ? dst : TMP_REG1;
! 1283:
! 1284: if (op_type >= SLJIT_MOV && op_type <= SLJIT_MOVU_SI) {
! 1285: switch (op_type) {
! 1286: case SLJIT_MOV:
! 1287: case SLJIT_MOV_UI:
! 1288: case SLJIT_MOV_SI:
! 1289: flags = WORD_SIZE;
! 1290: break;
! 1291: case SLJIT_MOV_UB:
! 1292: flags = BYTE_SIZE;
! 1293: if (src & SLJIT_IMM)
! 1294: srcw = (unsigned char)srcw;
! 1295: break;
! 1296: case SLJIT_MOV_SB:
! 1297: flags = BYTE_SIZE | SIGNED;
! 1298: if (src & SLJIT_IMM)
! 1299: srcw = (signed char)srcw;
! 1300: break;
! 1301: case SLJIT_MOV_UH:
! 1302: flags = HALF_SIZE;
! 1303: if (src & SLJIT_IMM)
! 1304: srcw = (unsigned short)srcw;
! 1305: break;
! 1306: case SLJIT_MOV_SH:
! 1307: flags = HALF_SIZE | SIGNED;
! 1308: if (src & SLJIT_IMM)
! 1309: srcw = (signed short)srcw;
! 1310: break;
! 1311: case SLJIT_MOVU:
! 1312: case SLJIT_MOVU_UI:
! 1313: case SLJIT_MOVU_SI:
! 1314: flags = WORD_SIZE | UPDATE;
! 1315: break;
! 1316: case SLJIT_MOVU_UB:
! 1317: flags = BYTE_SIZE | UPDATE;
! 1318: if (src & SLJIT_IMM)
! 1319: srcw = (unsigned char)srcw;
! 1320: break;
! 1321: case SLJIT_MOVU_SB:
! 1322: flags = BYTE_SIZE | SIGNED | UPDATE;
! 1323: if (src & SLJIT_IMM)
! 1324: srcw = (signed char)srcw;
! 1325: break;
! 1326: case SLJIT_MOVU_UH:
! 1327: flags = HALF_SIZE | UPDATE;
! 1328: if (src & SLJIT_IMM)
! 1329: srcw = (unsigned short)srcw;
! 1330: break;
! 1331: case SLJIT_MOVU_SH:
! 1332: flags = HALF_SIZE | SIGNED | UPDATE;
! 1333: if (src & SLJIT_IMM)
! 1334: srcw = (signed short)srcw;
! 1335: break;
! 1336: default:
! 1337: SLJIT_ASSERT_STOP();
! 1338: flags = 0;
! 1339: break;
! 1340: }
! 1341:
! 1342: if (src & SLJIT_IMM)
! 1343: FAIL_IF(emit_op_imm(compiler, SLJIT_MOV | ARG2_IMM, dst_r, TMP_REG1, srcw));
! 1344: else if (src & SLJIT_MEM) {
! 1345: if (getput_arg_fast(compiler, flags, dst_r, src, srcw))
! 1346: FAIL_IF(compiler->error);
! 1347: else
! 1348: FAIL_IF(getput_arg(compiler, flags, dst_r, src, srcw, dst, dstw));
! 1349: } else {
! 1350: if (dst_r != TMP_REG1)
! 1351: return emit_op_imm(compiler, op_type, dst_r, TMP_REG1, src);
! 1352: dst_r = src;
! 1353: }
! 1354:
! 1355: if (dst & SLJIT_MEM) {
! 1356: if (getput_arg_fast(compiler, flags | STORE, dst_r, dst, dstw))
! 1357: return compiler->error;
! 1358: else
! 1359: return getput_arg(compiler, flags | STORE, dst_r, dst, dstw, 0, 0);
! 1360: }
! 1361: return SLJIT_SUCCESS;
! 1362: }
! 1363:
! 1364: if (op_type == SLJIT_NEG) {
! 1365: #if (defined SLJIT_VERBOSE && SLJIT_VERBOSE) || (defined SLJIT_DEBUG && SLJIT_DEBUG)
! 1366: compiler->skip_checks = 1;
! 1367: #endif
! 1368: return sljit_emit_op2(compiler, GET_FLAGS(op) | SLJIT_SUB, dst, dstw, SLJIT_IMM, 0, src, srcw);
! 1369: }
! 1370:
! 1371: flags = (GET_FLAGS(op) ? SET_FLAGS : 0) | ((op & SLJIT_KEEP_FLAGS) ? KEEP_FLAGS : 0);
! 1372: if (src & SLJIT_MEM) {
! 1373: if (getput_arg_fast(compiler, WORD_SIZE, TMP_REG2, src, srcw))
! 1374: FAIL_IF(compiler->error);
! 1375: else
! 1376: FAIL_IF(getput_arg(compiler, WORD_SIZE, TMP_REG2, src, srcw, dst, dstw));
! 1377: src = TMP_REG2;
! 1378: }
! 1379:
! 1380: if (src & SLJIT_IMM)
! 1381: flags |= ARG2_IMM;
! 1382: else
! 1383: srcw = src;
! 1384:
! 1385: emit_op_imm(compiler, flags | op_type, dst_r, TMP_REG1, srcw);
! 1386:
! 1387: if (dst & SLJIT_MEM) {
! 1388: if (getput_arg_fast(compiler, flags | STORE, dst_r, dst, dstw))
! 1389: return compiler->error;
! 1390: else
! 1391: return getput_arg(compiler, flags | STORE, dst_r, dst, dstw, 0, 0);
! 1392: }
! 1393: return SLJIT_SUCCESS;
! 1394: }
! 1395:
! 1396: SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_op2(struct sljit_compiler *compiler, int op,
! 1397: int dst, sljit_w dstw,
! 1398: int src1, sljit_w src1w,
! 1399: int src2, sljit_w src2w)
! 1400: {
! 1401: int dst_r, flags;
! 1402:
! 1403: CHECK_ERROR();
! 1404: check_sljit_emit_op2(compiler, op, dst, dstw, src1, src1w, src2, src2w);
! 1405:
! 1406: compiler->cache_arg = 0;
! 1407: compiler->cache_argw = 0;
! 1408:
! 1409: dst_r = (dst >= SLJIT_TEMPORARY_REG1 && dst <= SLJIT_NO_REGISTERS) ? dst : TMP_REG1;
! 1410: flags = (GET_FLAGS(op) ? SET_FLAGS : 0) | ((op & SLJIT_KEEP_FLAGS) ? KEEP_FLAGS : 0);
! 1411:
! 1412: if ((dst & SLJIT_MEM) && !getput_arg_fast(compiler, WORD_SIZE | STORE | ARG_TEST, TMP_REG1, dst, dstw))
! 1413: flags |= SLOW_DEST;
! 1414:
! 1415: if (src1 & SLJIT_MEM) {
! 1416: if (getput_arg_fast(compiler, WORD_SIZE, TMP_REG1, src1, src1w))
! 1417: FAIL_IF(compiler->error);
! 1418: else
! 1419: flags |= SLOW_SRC1;
! 1420: }
! 1421: if (src2 & SLJIT_MEM) {
! 1422: if (getput_arg_fast(compiler, WORD_SIZE, TMP_REG2, src2, src2w))
! 1423: FAIL_IF(compiler->error);
! 1424: else
! 1425: flags |= SLOW_SRC2;
! 1426: }
! 1427:
! 1428: if ((flags & (SLOW_SRC1 | SLOW_SRC2)) == (SLOW_SRC1 | SLOW_SRC2)) {
! 1429: if (!can_cache(src1, src1w, src2, src2w) && can_cache(src1, src1w, dst, dstw)) {
! 1430: FAIL_IF(getput_arg(compiler, WORD_SIZE, TMP_REG2, src2, src2w, src1, src1w));
! 1431: FAIL_IF(getput_arg(compiler, WORD_SIZE, TMP_REG1, src1, src1w, dst, dstw));
! 1432: }
! 1433: else {
! 1434: FAIL_IF(getput_arg(compiler, WORD_SIZE, TMP_REG1, src1, src1w, src2, src2w));
! 1435: FAIL_IF(getput_arg(compiler, WORD_SIZE, TMP_REG2, src2, src2w, dst, dstw));
! 1436: }
! 1437: }
! 1438: else if (flags & SLOW_SRC1)
! 1439: FAIL_IF(getput_arg(compiler, WORD_SIZE, TMP_REG1, src1, src1w, dst, dstw));
! 1440: else if (flags & SLOW_SRC2)
! 1441: FAIL_IF(getput_arg(compiler, WORD_SIZE, TMP_REG2, src2, src2w, dst, dstw));
! 1442:
! 1443: if (src1 & SLJIT_MEM)
! 1444: src1 = TMP_REG1;
! 1445: if (src2 & SLJIT_MEM)
! 1446: src2 = TMP_REG2;
! 1447:
! 1448: if (src1 & SLJIT_IMM)
! 1449: flags |= ARG1_IMM;
! 1450: else
! 1451: src1w = src1;
! 1452: if (src2 & SLJIT_IMM)
! 1453: flags |= ARG2_IMM;
! 1454: else
! 1455: src2w = src2;
! 1456:
! 1457: if (dst == SLJIT_UNUSED)
! 1458: flags |= UNUSED_RETURN;
! 1459:
! 1460: if (GET_OPCODE(op) == SLJIT_MUL && (op & SLJIT_SET_O))
! 1461: flags |= SET_MULOV;
! 1462:
! 1463: emit_op_imm(compiler, flags | GET_OPCODE(op), dst_r, src1w, src2w);
! 1464:
! 1465: if (dst & SLJIT_MEM) {
! 1466: if (!(flags & SLOW_DEST)) {
! 1467: getput_arg_fast(compiler, WORD_SIZE | STORE, dst_r, dst, dstw);
! 1468: return compiler->error;
! 1469: }
! 1470: return getput_arg(compiler, WORD_SIZE | STORE, TMP_REG1, dst, dstw, 0, 0);
! 1471: }
! 1472: return SLJIT_SUCCESS;
! 1473: }
! 1474:
! 1475: SLJIT_API_FUNC_ATTRIBUTE int sljit_get_register_index(int reg)
! 1476: {
! 1477: check_sljit_get_register_index(reg);
! 1478: return reg_map[reg];
! 1479: }
! 1480:
! 1481: SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_op_custom(struct sljit_compiler *compiler,
! 1482: void *instruction, int size)
! 1483: {
! 1484: CHECK_ERROR();
! 1485: check_sljit_emit_op_custom(compiler, instruction, size);
! 1486: SLJIT_ASSERT(size == 2 || size == 4);
! 1487:
! 1488: if (size == 2)
! 1489: return push_inst16(compiler, *(sljit_uh*)instruction);
! 1490: return push_inst32(compiler, *(sljit_ins*)instruction);
! 1491: }
! 1492:
! 1493: /* --------------------------------------------------------------------- */
! 1494: /* Floating point operators */
! 1495: /* --------------------------------------------------------------------- */
! 1496:
! 1497: SLJIT_API_FUNC_ATTRIBUTE int sljit_is_fpu_available(void)
! 1498: {
! 1499: return 1;
! 1500: }
! 1501:
! 1502: static int emit_fop_mem(struct sljit_compiler *compiler, int flags, int reg, int arg, sljit_w argw)
! 1503: {
! 1504: sljit_w tmp;
! 1505: sljit_w inst = VSTR | ((flags & STORE) ? 0 : 0x00100000);
! 1506:
! 1507: SLJIT_ASSERT(arg & SLJIT_MEM);
! 1508:
! 1509: /* Fast loads and stores. */
! 1510: if (SLJIT_UNLIKELY(arg & 0xf0)) {
! 1511: FAIL_IF(push_inst32(compiler, ADD_W | RD4(TMP_REG2) | RN4(arg & 0xf) | RM4((arg & 0xf0) >> 4) | ((argw & 0x3) << 6)));
! 1512: arg = SLJIT_MEM | TMP_REG2;
! 1513: argw = 0;
! 1514: }
! 1515:
! 1516: if (arg & 0xf) {
! 1517: if (!(argw & ~0x3fc))
! 1518: return push_inst32(compiler, inst | 0x800000 | RN4(arg & 0xf) | DD4(reg) | (argw >> 2));
! 1519: if (!(-argw & ~0x3fc))
! 1520: return push_inst32(compiler, inst | RN4(arg & 0xf) | DD4(reg) | (-argw >> 2));
! 1521: }
! 1522:
! 1523: SLJIT_ASSERT(!(arg & 0xf0));
! 1524: if (compiler->cache_arg == arg) {
! 1525: tmp = argw - compiler->cache_argw;
! 1526: if (!(tmp & ~0x3fc))
! 1527: return push_inst32(compiler, inst | 0x800000 | RN4(TMP_REG3) | DD4(reg) | (tmp >> 2));
! 1528: if (!(-tmp & ~0x3fc))
! 1529: return push_inst32(compiler, inst | RN4(TMP_REG3) | DD4(reg) | (-tmp >> 2));
! 1530: if (emit_set_delta(compiler, TMP_REG3, TMP_REG3, tmp) != SLJIT_ERR_UNSUPPORTED) {
! 1531: FAIL_IF(compiler->error);
! 1532: compiler->cache_argw = argw;
! 1533: return push_inst32(compiler, inst | 0x800000 | RN4(TMP_REG3) | DD4(reg));
! 1534: }
! 1535: }
! 1536:
! 1537: compiler->cache_arg = arg;
! 1538: compiler->cache_argw = argw;
! 1539:
! 1540: if (SLJIT_UNLIKELY(!(arg & 0xf)))
! 1541: FAIL_IF(load_immediate(compiler, TMP_REG3, argw));
! 1542: else if (emit_set_delta(compiler, TMP_REG3, arg & 0xf, argw) != SLJIT_ERR_UNSUPPORTED)
! 1543: FAIL_IF(compiler->error);
! 1544: else {
! 1545: FAIL_IF(load_immediate(compiler, TMP_REG3, argw));
! 1546: if (arg & 0xf)
! 1547: FAIL_IF(push_inst16(compiler, ADD | SET_REGS44(TMP_REG3, (arg & 0xf))));
! 1548: }
! 1549: return push_inst32(compiler, inst | 0x800000 | RN4(TMP_REG3) | DD4(reg));
! 1550: }
! 1551:
! 1552: SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_fop1(struct sljit_compiler *compiler, int op,
! 1553: int dst, sljit_w dstw,
! 1554: int src, sljit_w srcw)
! 1555: {
! 1556: int dst_r;
! 1557:
! 1558: CHECK_ERROR();
! 1559: check_sljit_emit_fop1(compiler, op, dst, dstw, src, srcw);
! 1560:
! 1561: compiler->cache_arg = 0;
! 1562: compiler->cache_argw = 0;
! 1563:
! 1564: if (GET_OPCODE(op) == SLJIT_FCMP) {
! 1565: if (dst & SLJIT_MEM) {
! 1566: emit_fop_mem(compiler, 0, TMP_FREG1, dst, dstw);
! 1567: dst = TMP_FREG1;
! 1568: }
! 1569: if (src & SLJIT_MEM) {
! 1570: emit_fop_mem(compiler, 0, TMP_FREG2, src, srcw);
! 1571: src = TMP_FREG2;
! 1572: }
! 1573: FAIL_IF(push_inst32(compiler, VCMP_F64 | DD4(dst) | DM4(src)));
! 1574: return push_inst32(compiler, VMRS);
! 1575: }
! 1576:
! 1577: dst_r = (dst >= SLJIT_FLOAT_REG1 && dst <= SLJIT_FLOAT_REG4) ? dst : TMP_FREG1;
! 1578: if (src & SLJIT_MEM) {
! 1579: emit_fop_mem(compiler, 0, dst_r, src, srcw);
! 1580: src = dst_r;
! 1581: }
! 1582:
! 1583: switch (GET_OPCODE(op)) {
! 1584: case SLJIT_FMOV:
! 1585: if (src != dst_r)
! 1586: FAIL_IF(push_inst32(compiler, VMOV_F64 | DD4(dst_r) | DM4(src)));
! 1587: break;
! 1588: case SLJIT_FNEG:
! 1589: FAIL_IF(push_inst32(compiler, VNEG_F64 | DD4(dst_r) | DM4(src)));
! 1590: break;
! 1591: case SLJIT_FABS:
! 1592: FAIL_IF(push_inst32(compiler, VABS_F64 | DD4(dst_r) | DM4(src)));
! 1593: break;
! 1594: }
! 1595:
! 1596: if (dst & SLJIT_MEM)
! 1597: return emit_fop_mem(compiler, STORE, TMP_FREG1, dst, dstw);
! 1598: return SLJIT_SUCCESS;
! 1599: }
! 1600:
! 1601: SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_fop2(struct sljit_compiler *compiler, int op,
! 1602: int dst, sljit_w dstw,
! 1603: int src1, sljit_w src1w,
! 1604: int src2, sljit_w src2w)
! 1605: {
! 1606: int dst_r;
! 1607:
! 1608: CHECK_ERROR();
! 1609: check_sljit_emit_fop2(compiler, op, dst, dstw, src1, src1w, src2, src2w);
! 1610:
! 1611: compiler->cache_arg = 0;
! 1612: compiler->cache_argw = 0;
! 1613:
! 1614: dst_r = (dst >= SLJIT_FLOAT_REG1 && dst <= SLJIT_FLOAT_REG4) ? dst : TMP_FREG1;
! 1615: if (src1 & SLJIT_MEM) {
! 1616: emit_fop_mem(compiler, 0, TMP_FREG1, src1, src1w);
! 1617: src1 = TMP_FREG1;
! 1618: }
! 1619: if (src2 & SLJIT_MEM) {
! 1620: emit_fop_mem(compiler, 0, TMP_FREG2, src2, src2w);
! 1621: src2 = TMP_FREG2;
! 1622: }
! 1623:
! 1624: switch (GET_OPCODE(op)) {
! 1625: case SLJIT_FADD:
! 1626: FAIL_IF(push_inst32(compiler, VADD_F64 | DD4(dst_r) | DN4(src1) | DM4(src2)));
! 1627: break;
! 1628: case SLJIT_FSUB:
! 1629: FAIL_IF(push_inst32(compiler, VSUB_F64 | DD4(dst_r) | DN4(src1) | DM4(src2)));
! 1630: break;
! 1631: case SLJIT_FMUL:
! 1632: FAIL_IF(push_inst32(compiler, VMUL_F64 | DD4(dst_r) | DN4(src1) | DM4(src2)));
! 1633: break;
! 1634: case SLJIT_FDIV:
! 1635: FAIL_IF(push_inst32(compiler, VDIV_F64 | DD4(dst_r) | DN4(src1) | DM4(src2)));
! 1636: break;
! 1637: }
! 1638:
! 1639: if (dst & SLJIT_MEM)
! 1640: return emit_fop_mem(compiler, STORE, TMP_FREG1, dst, dstw);
! 1641: return SLJIT_SUCCESS;
! 1642: }
! 1643:
! 1644: /* --------------------------------------------------------------------- */
! 1645: /* Other instructions */
! 1646: /* --------------------------------------------------------------------- */
! 1647:
! 1648: 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)
! 1649: {
! 1650: int size;
! 1651:
! 1652: CHECK_ERROR();
! 1653: check_sljit_emit_fast_enter(compiler, dst, dstw, args, temporaries, saveds, local_size);
! 1654:
! 1655: compiler->temporaries = temporaries;
! 1656: compiler->saveds = saveds;
! 1657:
! 1658: size = (3 + saveds) * sizeof(sljit_uw);
! 1659: local_size += size;
! 1660: local_size = (local_size + 7) & ~7;
! 1661: local_size -= size;
! 1662: compiler->local_size = local_size;
! 1663:
! 1664: if (dst >= SLJIT_TEMPORARY_REG1 && dst <= SLJIT_NO_REGISTERS)
! 1665: return push_inst16(compiler, MOV | SET_REGS44(dst, TMP_REG3));
! 1666: else if (dst & SLJIT_MEM) {
! 1667: if (getput_arg_fast(compiler, WORD_SIZE | STORE, TMP_REG3, dst, dstw))
! 1668: return compiler->error;
! 1669: FAIL_IF(push_inst16(compiler, MOV | SET_REGS44(TMP_REG2, TMP_REG3)));
! 1670: compiler->cache_arg = 0;
! 1671: compiler->cache_argw = 0;
! 1672: return getput_arg(compiler, WORD_SIZE | STORE, TMP_REG2, dst, dstw, 0, 0);
! 1673: }
! 1674:
! 1675: return SLJIT_SUCCESS;
! 1676: }
! 1677:
! 1678: SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_fast_return(struct sljit_compiler *compiler, int src, sljit_w srcw)
! 1679: {
! 1680: CHECK_ERROR();
! 1681: check_sljit_emit_fast_return(compiler, src, srcw);
! 1682:
! 1683: if (src >= SLJIT_TEMPORARY_REG1 && src <= SLJIT_NO_REGISTERS)
! 1684: FAIL_IF(push_inst16(compiler, MOV | SET_REGS44(TMP_REG3, src)));
! 1685: else if (src & SLJIT_MEM) {
! 1686: if (getput_arg_fast(compiler, WORD_SIZE, TMP_REG3, src, srcw))
! 1687: FAIL_IF(compiler->error);
! 1688: else {
! 1689: compiler->cache_arg = 0;
! 1690: compiler->cache_argw = 0;
! 1691: FAIL_IF(getput_arg(compiler, WORD_SIZE, TMP_REG2, src, srcw, 0, 0));
! 1692: FAIL_IF(push_inst16(compiler, MOV | SET_REGS44(TMP_REG3, TMP_REG2)));
! 1693: }
! 1694: }
! 1695: else if (src & SLJIT_IMM)
! 1696: FAIL_IF(load_immediate(compiler, TMP_REG3, srcw));
! 1697: return push_inst16(compiler, BLX | RN3(TMP_REG3));
! 1698: }
! 1699:
! 1700: /* --------------------------------------------------------------------- */
! 1701: /* Conditional instructions */
! 1702: /* --------------------------------------------------------------------- */
! 1703:
! 1704: static sljit_uw get_cc(int type)
! 1705: {
! 1706: switch (type) {
! 1707: case SLJIT_C_EQUAL:
! 1708: case SLJIT_C_MUL_NOT_OVERFLOW:
! 1709: case SLJIT_C_FLOAT_EQUAL:
! 1710: return 0x0;
! 1711:
! 1712: case SLJIT_C_NOT_EQUAL:
! 1713: case SLJIT_C_MUL_OVERFLOW:
! 1714: case SLJIT_C_FLOAT_NOT_EQUAL:
! 1715: return 0x1;
! 1716:
! 1717: case SLJIT_C_LESS:
! 1718: case SLJIT_C_FLOAT_LESS:
! 1719: return 0x3;
! 1720:
! 1721: case SLJIT_C_GREATER_EQUAL:
! 1722: case SLJIT_C_FLOAT_GREATER_EQUAL:
! 1723: return 0x2;
! 1724:
! 1725: case SLJIT_C_GREATER:
! 1726: case SLJIT_C_FLOAT_GREATER:
! 1727: return 0x8;
! 1728:
! 1729: case SLJIT_C_LESS_EQUAL:
! 1730: case SLJIT_C_FLOAT_LESS_EQUAL:
! 1731: return 0x9;
! 1732:
! 1733: case SLJIT_C_SIG_LESS:
! 1734: return 0xb;
! 1735:
! 1736: case SLJIT_C_SIG_GREATER_EQUAL:
! 1737: return 0xa;
! 1738:
! 1739: case SLJIT_C_SIG_GREATER:
! 1740: return 0xc;
! 1741:
! 1742: case SLJIT_C_SIG_LESS_EQUAL:
! 1743: return 0xd;
! 1744:
! 1745: case SLJIT_C_OVERFLOW:
! 1746: case SLJIT_C_FLOAT_NAN:
! 1747: return 0x6;
! 1748:
! 1749: case SLJIT_C_NOT_OVERFLOW:
! 1750: case SLJIT_C_FLOAT_NOT_NAN:
! 1751: return 0x7;
! 1752:
! 1753: default: /* SLJIT_JUMP */
! 1754: return 0xe;
! 1755: }
! 1756: }
! 1757:
! 1758: SLJIT_API_FUNC_ATTRIBUTE struct sljit_label* sljit_emit_label(struct sljit_compiler *compiler)
! 1759: {
! 1760: struct sljit_label *label;
! 1761:
! 1762: CHECK_ERROR_PTR();
! 1763: check_sljit_emit_label(compiler);
! 1764:
! 1765: if (compiler->last_label && compiler->last_label->size == compiler->size)
! 1766: return compiler->last_label;
! 1767:
! 1768: label = (struct sljit_label*)ensure_abuf(compiler, sizeof(struct sljit_label));
! 1769: PTR_FAIL_IF(!label);
! 1770: set_label(label, compiler);
! 1771: return label;
! 1772: }
! 1773:
! 1774: SLJIT_API_FUNC_ATTRIBUTE struct sljit_jump* sljit_emit_jump(struct sljit_compiler *compiler, int type)
! 1775: {
! 1776: struct sljit_jump *jump;
! 1777: int cc;
! 1778:
! 1779: CHECK_ERROR_PTR();
! 1780: check_sljit_emit_jump(compiler, type);
! 1781:
! 1782: jump = (struct sljit_jump*)ensure_abuf(compiler, sizeof(struct sljit_jump));
! 1783: PTR_FAIL_IF(!jump);
! 1784: set_jump(jump, compiler, type & SLJIT_REWRITABLE_JUMP);
! 1785: type &= 0xff;
! 1786:
! 1787: /* In ARM, we don't need to touch the arguments. */
! 1788: PTR_FAIL_IF(emit_imm32_const(compiler, TMP_REG1, 0));
! 1789: if (type < SLJIT_JUMP) {
! 1790: jump->flags |= IS_CONDITIONAL;
! 1791: cc = get_cc(type);
! 1792: jump->flags |= cc << 8;
! 1793: PTR_FAIL_IF(push_inst16(compiler, IT | (cc << 4) | 0x8));
! 1794: }
! 1795:
! 1796: jump->addr = compiler->size;
! 1797: if (type <= SLJIT_JUMP)
! 1798: PTR_FAIL_IF(push_inst16(compiler, BX | RN3(TMP_REG1)));
! 1799: else {
! 1800: jump->flags |= IS_BL;
! 1801: PTR_FAIL_IF(push_inst16(compiler, BLX | RN3(TMP_REG1)));
! 1802: }
! 1803:
! 1804: return jump;
! 1805: }
! 1806:
! 1807: SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_ijump(struct sljit_compiler *compiler, int type, int src, sljit_w srcw)
! 1808: {
! 1809: struct sljit_jump *jump;
! 1810:
! 1811: CHECK_ERROR();
! 1812: check_sljit_emit_ijump(compiler, type, src, srcw);
! 1813:
! 1814: /* In ARM, we don't need to touch the arguments. */
! 1815: if (src & SLJIT_IMM) {
! 1816: jump = (struct sljit_jump*)ensure_abuf(compiler, sizeof(struct sljit_jump));
! 1817: FAIL_IF(!jump);
! 1818: set_jump(jump, compiler, JUMP_ADDR | ((type >= SLJIT_FAST_CALL) ? IS_BL : 0));
! 1819: jump->u.target = srcw;
! 1820:
! 1821: FAIL_IF(emit_imm32_const(compiler, TMP_REG1, 0));
! 1822: jump->addr = compiler->size;
! 1823: FAIL_IF(push_inst16(compiler, (type <= SLJIT_JUMP ? BX : BLX) | RN3(TMP_REG1)));
! 1824: }
! 1825: else {
! 1826: if (src >= SLJIT_TEMPORARY_REG1 && src <= SLJIT_NO_REGISTERS)
! 1827: return push_inst16(compiler, (type <= SLJIT_JUMP ? BX : BLX) | RN3(src));
! 1828:
! 1829: FAIL_IF(emit_op_mem(compiler, WORD_SIZE, type <= SLJIT_JUMP ? TMP_PC : TMP_REG1, src, srcw));
! 1830: if (type >= SLJIT_FAST_CALL)
! 1831: return push_inst16(compiler, BLX | RN3(TMP_REG1));
! 1832: }
! 1833: return SLJIT_SUCCESS;
! 1834: }
! 1835:
! 1836: SLJIT_API_FUNC_ATTRIBUTE int sljit_emit_cond_value(struct sljit_compiler *compiler, int op, int dst, sljit_w dstw, int type)
! 1837: {
! 1838: int dst_r;
! 1839: sljit_uw cc;
! 1840:
! 1841: CHECK_ERROR();
! 1842: check_sljit_emit_cond_value(compiler, op, dst, dstw, type);
! 1843:
! 1844: if (dst == SLJIT_UNUSED)
! 1845: return SLJIT_SUCCESS;
! 1846:
! 1847: cc = get_cc(type);
! 1848: if (GET_OPCODE(op) == SLJIT_OR && dst >= SLJIT_TEMPORARY_REG1 && dst <= SLJIT_NO_REGISTERS) {
! 1849: FAIL_IF(push_inst16(compiler, IT | (cc << 4) | 0x8));
! 1850: FAIL_IF(push_inst32(compiler, ORRI | RN4(dst) | RD4(dst) | 0x1));
! 1851: if (op & SLJIT_SET_E) {
! 1852: if (reg_map[dst] <= 7)
! 1853: return push_inst16(compiler, ORRS | RD3(dst) | RN3(dst));
! 1854: return push_inst32(compiler, ORR_W | SET_FLAGS | RD4(TMP_REG1) | RN4(dst) | RM4(dst));
! 1855: }
! 1856: return SLJIT_SUCCESS;
! 1857: }
! 1858:
! 1859: dst_r = TMP_REG2;
! 1860: if (op == SLJIT_MOV && dst >= SLJIT_TEMPORARY_REG1 && dst <= SLJIT_NO_REGISTERS && reg_map[dst] <= 7)
! 1861: dst_r = dst;
! 1862:
! 1863: FAIL_IF(push_inst16(compiler, IT | (cc << 4) | (((cc & 0x1) ^ 0x1) << 3) | 0x4));
! 1864: FAIL_IF(push_inst16(compiler, MOVSI | 0x1 | RDN3(dst_r)));
! 1865: FAIL_IF(push_inst16(compiler, MOVSI | 0x0 | RDN3(dst_r)));
! 1866:
! 1867: if (dst_r == TMP_REG2) {
! 1868: if (GET_OPCODE(op) == SLJIT_OR) {
! 1869: #if (defined SLJIT_VERBOSE && SLJIT_VERBOSE) || (defined SLJIT_DEBUG && SLJIT_DEBUG)
! 1870: compiler->skip_checks = 1;
! 1871: #endif
! 1872: return sljit_emit_op2(compiler, op, dst, dstw, dst, dstw, TMP_REG2, 0);
! 1873: }
! 1874: if (dst & SLJIT_MEM)
! 1875: return emit_op_mem(compiler, WORD_SIZE | STORE, TMP_REG2, dst, dstw);
! 1876: else
! 1877: return push_inst16(compiler, MOV | SET_REGS44(dst, TMP_REG2));
! 1878: }
! 1879:
! 1880: return SLJIT_SUCCESS;
! 1881: }
! 1882:
! 1883: SLJIT_API_FUNC_ATTRIBUTE struct sljit_const* sljit_emit_const(struct sljit_compiler *compiler, int dst, sljit_w dstw, sljit_w init_value)
! 1884: {
! 1885: struct sljit_const *const_;
! 1886: int dst_r;
! 1887:
! 1888: CHECK_ERROR_PTR();
! 1889: check_sljit_emit_const(compiler, dst, dstw, init_value);
! 1890:
! 1891: const_ = (struct sljit_const*)ensure_abuf(compiler, sizeof(struct sljit_const));
! 1892: PTR_FAIL_IF(!const_);
! 1893: set_const(const_, compiler);
! 1894:
! 1895: dst_r = (dst >= SLJIT_TEMPORARY_REG1 && dst <= SLJIT_NO_REGISTERS) ? dst : TMP_REG1;
! 1896: PTR_FAIL_IF(emit_imm32_const(compiler, dst_r, init_value));
! 1897:
! 1898: if (dst & SLJIT_MEM)
! 1899: PTR_FAIL_IF(emit_op_mem(compiler, WORD_SIZE | STORE, dst_r, dst, dstw));
! 1900: return const_;
! 1901: }
! 1902:
! 1903: SLJIT_API_FUNC_ATTRIBUTE void sljit_set_jump_addr(sljit_uw addr, sljit_uw new_addr)
! 1904: {
! 1905: inline_set_jump_addr(addr, new_addr, 1);
! 1906: }
! 1907:
! 1908: SLJIT_API_FUNC_ATTRIBUTE void sljit_set_const(sljit_uw addr, sljit_w new_constant)
! 1909: {
! 1910: sljit_uh* inst = (sljit_uh*)addr;
! 1911: modify_imm32_const(inst, new_constant);
! 1912: SLJIT_CACHE_FLUSH(inst, inst + 3);
! 1913: }
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