diff options
Diffstat (limited to 'src/3rdparty/pcre2/src/sljit/sljitNativeX86_64.c')
-rw-r--r-- | src/3rdparty/pcre2/src/sljit/sljitNativeX86_64.c | 1306 |
1 files changed, 871 insertions, 435 deletions
diff --git a/src/3rdparty/pcre2/src/sljit/sljitNativeX86_64.c b/src/3rdparty/pcre2/src/sljit/sljitNativeX86_64.c index e85b56a61a..f313f3f038 100644 --- a/src/3rdparty/pcre2/src/sljit/sljitNativeX86_64.c +++ b/src/3rdparty/pcre2/src/sljit/sljitNativeX86_64.c @@ -26,6 +26,10 @@ /* x86 64-bit arch dependent functions. */ +/* --------------------------------------------------------------------- */ +/* Operators */ +/* --------------------------------------------------------------------- */ + static sljit_s32 emit_load_imm64(struct sljit_compiler *compiler, sljit_s32 reg, sljit_sw imm) { sljit_u8 *inst; @@ -33,15 +37,330 @@ static sljit_s32 emit_load_imm64(struct sljit_compiler *compiler, sljit_s32 reg, inst = (sljit_u8*)ensure_buf(compiler, 1 + 2 + sizeof(sljit_sw)); FAIL_IF(!inst); INC_SIZE(2 + sizeof(sljit_sw)); - *inst++ = REX_W | ((reg_map[reg] <= 7) ? 0 : REX_B); - *inst++ = MOV_r_i32 + (reg_map[reg] & 0x7); - sljit_unaligned_store_sw(inst, imm); + inst[0] = REX_W | ((reg_map[reg] <= 7) ? 0 : REX_B); + inst[1] = U8(MOV_r_i32 | reg_lmap[reg]); + sljit_unaligned_store_sw(inst + 2, imm); + return SLJIT_SUCCESS; +} + +static sljit_s32 emit_do_imm32(struct sljit_compiler *compiler, sljit_u8 rex, sljit_u8 opcode, sljit_sw imm) +{ + sljit_u8 *inst; + sljit_uw length = (rex ? 2 : 1) + sizeof(sljit_s32); + + inst = (sljit_u8*)ensure_buf(compiler, 1 + length); + FAIL_IF(!inst); + INC_SIZE(length); + if (rex) + *inst++ = rex; + *inst++ = opcode; + sljit_unaligned_store_s32(inst, (sljit_s32)imm); + return SLJIT_SUCCESS; +} + +static sljit_u8* emit_x86_instruction(struct sljit_compiler *compiler, sljit_uw size, + /* The register or immediate operand. */ + sljit_s32 a, sljit_sw imma, + /* The general operand (not immediate). */ + sljit_s32 b, sljit_sw immb) +{ + sljit_u8 *inst; + sljit_u8 *buf_ptr; + sljit_u8 rex = 0; + sljit_u8 reg_lmap_b; + sljit_uw flags = size; + sljit_uw inst_size; + + /* The immediate operand must be 32 bit. */ + SLJIT_ASSERT(a != SLJIT_IMM || compiler->mode32 || IS_HALFWORD(imma)); + /* Both cannot be switched on. */ + SLJIT_ASSERT((flags & (EX86_BIN_INS | EX86_SHIFT_INS)) != (EX86_BIN_INS | EX86_SHIFT_INS)); + /* Size flags not allowed for typed instructions. */ + SLJIT_ASSERT(!(flags & (EX86_BIN_INS | EX86_SHIFT_INS)) || (flags & (EX86_BYTE_ARG | EX86_HALF_ARG)) == 0); + /* Both size flags cannot be switched on. */ + SLJIT_ASSERT((flags & (EX86_BYTE_ARG | EX86_HALF_ARG)) != (EX86_BYTE_ARG | EX86_HALF_ARG)); + /* SSE2 and immediate is not possible. */ + SLJIT_ASSERT(a != SLJIT_IMM || !(flags & EX86_SSE2)); + SLJIT_ASSERT(((flags & (EX86_PREF_F2 | EX86_PREF_F3 | EX86_PREF_66)) + & ((flags & (EX86_PREF_F2 | EX86_PREF_F3 | EX86_PREF_66)) - 1)) == 0); + SLJIT_ASSERT((flags & (EX86_VEX_EXT | EX86_REX)) != EX86_VEX_EXT); + + size &= 0xf; + /* The mod r/m byte is always present. */ + inst_size = size + 1; + + if (!compiler->mode32 && !(flags & EX86_NO_REXW)) + rex |= REX_W; + else if (flags & EX86_REX) + rex |= REX; + + if (flags & (EX86_PREF_F2 | EX86_PREF_F3 | EX86_PREF_66)) + inst_size++; + + /* Calculate size of b. */ + if (b & SLJIT_MEM) { + if (!(b & OFFS_REG_MASK) && NOT_HALFWORD(immb)) { + PTR_FAIL_IF(emit_load_imm64(compiler, TMP_REG2, immb)); + immb = 0; + if (b & REG_MASK) + b |= TO_OFFS_REG(TMP_REG2); + else + b |= TMP_REG2; + } + + if (!(b & REG_MASK)) + inst_size += 1 + sizeof(sljit_s32); /* SIB byte required to avoid RIP based addressing. */ + else { + if (immb != 0 && !(b & OFFS_REG_MASK)) { + /* Immediate operand. */ + if (immb <= 127 && immb >= -128) + inst_size += sizeof(sljit_s8); + else + inst_size += sizeof(sljit_s32); + } else if (reg_lmap[b & REG_MASK] == 5) { + /* Swap registers if possible. */ + if ((b & OFFS_REG_MASK) && (immb & 0x3) == 0 && reg_lmap[OFFS_REG(b)] != 5) + b = SLJIT_MEM | OFFS_REG(b) | TO_OFFS_REG(b & REG_MASK); + else + inst_size += sizeof(sljit_s8); + } + + if (reg_map[b & REG_MASK] >= 8) + rex |= REX_B; + + if (reg_lmap[b & REG_MASK] == 4 && !(b & OFFS_REG_MASK)) + b |= TO_OFFS_REG(SLJIT_SP); + + if (b & OFFS_REG_MASK) { + inst_size += 1; /* SIB byte. */ + if (reg_map[OFFS_REG(b)] >= 8) + rex |= REX_X; + } + } + } else if (!(flags & EX86_SSE2_OP2)) { + if (reg_map[b] >= 8) + rex |= REX_B; + } else if (freg_map[b] >= 8) + rex |= REX_B; + + if ((flags & EX86_VEX_EXT) && (rex & 0x3)) { + SLJIT_ASSERT(size == 2); + size++; + inst_size++; + } + + if (a == SLJIT_IMM) { + if (flags & EX86_BIN_INS) { + if (imma <= 127 && imma >= -128) { + inst_size += 1; + flags |= EX86_BYTE_ARG; + } else + inst_size += 4; + } else if (flags & EX86_SHIFT_INS) { + SLJIT_ASSERT(imma <= (compiler->mode32 ? 0x1f : 0x3f)); + if (imma != 1) { + inst_size++; + flags |= EX86_BYTE_ARG; + } + } else if (flags & EX86_BYTE_ARG) + inst_size++; + else if (flags & EX86_HALF_ARG) + inst_size += sizeof(short); + else + inst_size += sizeof(sljit_s32); + } else { + SLJIT_ASSERT(!(flags & EX86_SHIFT_INS) || a == SLJIT_PREF_SHIFT_REG); + /* reg_map[SLJIT_PREF_SHIFT_REG] is less than 8. */ + if (!(flags & EX86_SSE2_OP1)) { + if (reg_map[a] >= 8) + rex |= REX_R; + } + else if (freg_map[a] >= 8) + rex |= REX_R; + } + + if (rex) + inst_size++; + + inst = (sljit_u8*)ensure_buf(compiler, 1 + inst_size); + PTR_FAIL_IF(!inst); + + /* Encoding prefixes. */ + INC_SIZE(inst_size); + if (flags & EX86_PREF_F2) + *inst++ = 0xf2; + else if (flags & EX86_PREF_F3) + *inst++ = 0xf3; + else if (flags & EX86_PREF_66) + *inst++ = 0x66; + + /* Rex is always the last prefix. */ + if (rex) + *inst++ = rex; + + buf_ptr = inst + size; + + /* Encode mod/rm byte. */ + if (!(flags & EX86_SHIFT_INS)) { + if ((flags & EX86_BIN_INS) && a == SLJIT_IMM) + *inst = (flags & EX86_BYTE_ARG) ? GROUP_BINARY_83 : GROUP_BINARY_81; + + if (a == SLJIT_IMM) + *buf_ptr = 0; + else if (!(flags & EX86_SSE2_OP1)) + *buf_ptr = U8(reg_lmap[a] << 3); + else + *buf_ptr = U8(freg_lmap[a] << 3); + } else { + if (a == SLJIT_IMM) { + if (imma == 1) + *inst = GROUP_SHIFT_1; + else + *inst = GROUP_SHIFT_N; + } else + *inst = GROUP_SHIFT_CL; + *buf_ptr = 0; + } + + if (!(b & SLJIT_MEM)) { + *buf_ptr = U8(*buf_ptr | MOD_REG | (!(flags & EX86_SSE2_OP2) ? reg_lmap[b] : freg_lmap[b])); + buf_ptr++; + } else if (b & REG_MASK) { + reg_lmap_b = reg_lmap[b & REG_MASK]; + + if (!(b & OFFS_REG_MASK) || (b & OFFS_REG_MASK) == TO_OFFS_REG(SLJIT_SP)) { + if (immb != 0 || reg_lmap_b == 5) { + if (immb <= 127 && immb >= -128) + *buf_ptr |= 0x40; + else + *buf_ptr |= 0x80; + } + + if (!(b & OFFS_REG_MASK)) + *buf_ptr++ |= reg_lmap_b; + else { + buf_ptr[0] |= 0x04; + buf_ptr[1] = U8(reg_lmap_b | (reg_lmap[OFFS_REG(b)] << 3)); + buf_ptr += 2; + } + + if (immb != 0 || reg_lmap_b == 5) { + if (immb <= 127 && immb >= -128) + *buf_ptr++ = U8(immb); /* 8 bit displacement. */ + else { + sljit_unaligned_store_s32(buf_ptr, (sljit_s32)immb); /* 32 bit displacement. */ + buf_ptr += sizeof(sljit_s32); + } + } + } else { + if (reg_lmap_b == 5) + *buf_ptr |= 0x40; + + buf_ptr[0] |= 0x04; + buf_ptr[1] = U8(reg_lmap_b | (reg_lmap[OFFS_REG(b)] << 3) | (immb << 6)); + buf_ptr += 2; + + if (reg_lmap_b == 5) + *buf_ptr++ = 0; + } + } else { + buf_ptr[0] |= 0x04; + buf_ptr[1] = 0x25; + buf_ptr += 2; + sljit_unaligned_store_s32(buf_ptr, (sljit_s32)immb); /* 32 bit displacement. */ + buf_ptr += sizeof(sljit_s32); + } + + if (a == SLJIT_IMM) { + if (flags & EX86_BYTE_ARG) + *buf_ptr = U8(imma); + else if (flags & EX86_HALF_ARG) + sljit_unaligned_store_s16(buf_ptr, (sljit_s16)imma); + else if (!(flags & EX86_SHIFT_INS)) + sljit_unaligned_store_s32(buf_ptr, (sljit_s32)imma); + } + + return inst; +} + +static sljit_s32 emit_vex_instruction(struct sljit_compiler *compiler, sljit_uw op, + /* The first and second register operand. */ + sljit_s32 a, sljit_s32 v, + /* The general operand (not immediate). */ + sljit_s32 b, sljit_sw immb) +{ + sljit_u8 *inst; + sljit_u8 vex = 0; + sljit_u8 vex_m = 0; + sljit_uw size; + + SLJIT_ASSERT(((op & (EX86_PREF_F2 | EX86_PREF_F3 | EX86_PREF_66)) + & ((op & (EX86_PREF_F2 | EX86_PREF_F3 | EX86_PREF_66)) - 1)) == 0); + + op |= EX86_REX; + + if (op & VEX_OP_0F38) + vex_m = 0x2; + else if (op & VEX_OP_0F3A) + vex_m = 0x3; + + if ((op & VEX_W) || ((op & VEX_AUTO_W) && !compiler->mode32)) { + if (vex_m == 0) + vex_m = 0x1; + + vex |= 0x80; + } + + if (op & EX86_PREF_66) + vex |= 0x1; + else if (op & EX86_PREF_F2) + vex |= 0x3; + else if (op & EX86_PREF_F3) + vex |= 0x2; + + op &= ~(EX86_PREF_66 | EX86_PREF_F2 | EX86_PREF_F3); + + if (op & VEX_256) + vex |= 0x4; + + vex = U8(vex | ((((op & VEX_SSE2_OPV) ? freg_map[v] : reg_map[v]) ^ 0xf) << 3)); + + size = op & ~(sljit_uw)0xff; + size |= (vex_m == 0) ? (EX86_VEX_EXT | 2) : 3; + + inst = emit_x86_instruction(compiler, size, a, 0, b, immb); + FAIL_IF(!inst); + + SLJIT_ASSERT((inst[-1] & 0xf0) == REX); + + /* If X or B is present in REX prefix. */ + if (vex_m == 0 && inst[-1] & 0x3) + vex_m = 0x1; + + if (vex_m == 0) { + vex |= U8(((inst[-1] >> 2) ^ 0x1) << 7); + + inst[-1] = 0xc5; + inst[0] = vex; + inst[1] = U8(op); + return SLJIT_SUCCESS; + } + + vex_m |= U8((inst[-1] ^ 0x7) << 5); + inst[-1] = 0xc4; + inst[0] = vex_m; + inst[1] = vex; + inst[2] = U8(op); return SLJIT_SUCCESS; } +/* --------------------------------------------------------------------- */ +/* Enter / return */ +/* --------------------------------------------------------------------- */ + static sljit_u8* generate_far_jump_code(struct sljit_jump *jump, sljit_u8 *code_ptr) { - sljit_s32 type = jump->flags >> TYPE_SHIFT; + sljit_uw type = jump->flags >> TYPE_SHIFT; int short_addr = !(jump->flags & SLJIT_REWRITABLE_JUMP) && !(jump->flags & JUMP_LABEL) && (jump->u.target <= 0xffffffff); @@ -50,7 +369,7 @@ static sljit_u8* generate_far_jump_code(struct sljit_jump *jump, sljit_u8 *code_ if (type < SLJIT_JUMP) { /* Invert type. */ - *code_ptr++ = get_jump_code(type ^ 0x1) - 0x10; + *code_ptr++ = U8(get_jump_code(type ^ 0x1) - 0x10); *code_ptr++ = short_addr ? (6 + 3) : (10 + 3); } @@ -63,13 +382,13 @@ static sljit_u8* generate_far_jump_code(struct sljit_jump *jump, sljit_u8 *code_ else if (short_addr) sljit_unaligned_store_s32(code_ptr, (sljit_s32)jump->u.target); else - sljit_unaligned_store_sw(code_ptr, jump->u.target); + sljit_unaligned_store_sw(code_ptr, (sljit_sw)jump->u.target); code_ptr += short_addr ? sizeof(sljit_s32) : sizeof(sljit_sw); *code_ptr++ = REX_B; *code_ptr++ = GROUP_FF; - *code_ptr++ = MOD_REG | (type >= SLJIT_FAST_CALL ? CALL_rm : JMP_rm) | reg_lmap[TMP_REG2]; + *code_ptr++ = U8(MOD_REG | (type >= SLJIT_FAST_CALL ? CALL_rm : JMP_rm) | reg_lmap[TMP_REG2]); return code_ptr; } @@ -90,7 +409,7 @@ static sljit_u8* generate_put_label_code(struct sljit_put_label *put_label, slji SLJIT_ASSERT((code_ptr[1] & 0xf8) == MOV_r_i32); if ((code_ptr[0] & 0x07) != 0) { - code_ptr[0] = (sljit_u8)(code_ptr[0] & ~0x08); + code_ptr[0] = U8(code_ptr[0] & ~0x08); code_ptr += 2 + sizeof(sljit_s32); } else { @@ -114,9 +433,9 @@ static sljit_u8* generate_put_label_code(struct sljit_put_label *put_label, slji SLJIT_ASSERT(code_ptr[1] == MOV_rm_r); - code_ptr[0] = (sljit_u8)(code_ptr[0] & ~0x4); + code_ptr[0] = U8(code_ptr[0] & ~0x4); code_ptr[1] = MOV_rm_i32; - code_ptr[2] = (sljit_u8)(code_ptr[2] & ~(0x7 << 3)); + code_ptr[2] = U8(code_ptr[2] & ~(0x7 << 3)); code_ptr = (sljit_u8*)(put_label->addr - (2 + sizeof(sljit_uw)) + sizeof(sljit_s32)); put_label->addr = (sljit_uw)code_ptr; @@ -124,35 +443,44 @@ static sljit_u8* generate_put_label_code(struct sljit_put_label *put_label, slji return code_ptr; } +#ifdef _WIN64 +typedef struct { + sljit_sw regs[2]; +} sljit_sse2_reg; +#endif /* _WIN64 */ + SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_enter(struct sljit_compiler *compiler, sljit_s32 options, sljit_s32 arg_types, sljit_s32 scratches, sljit_s32 saveds, sljit_s32 fscratches, sljit_s32 fsaveds, sljit_s32 local_size) { - sljit_s32 args, i, tmp, size, saved_register_size; + sljit_uw size; + sljit_s32 word_arg_count = 0; + sljit_s32 saved_arg_count = SLJIT_KEPT_SAVEDS_COUNT(options); + sljit_s32 saved_regs_size, tmp, i; +#ifdef _WIN64 + sljit_s32 saved_float_regs_size; + sljit_s32 saved_float_regs_offset = 0; + sljit_s32 float_arg_count = 0; +#endif /* _WIN64 */ sljit_u8 *inst; CHECK_ERROR(); CHECK(check_sljit_emit_enter(compiler, options, arg_types, scratches, saveds, fscratches, fsaveds, local_size)); set_emit_enter(compiler, options, arg_types, scratches, saveds, fscratches, fsaveds, local_size); + if (options & SLJIT_ENTER_REG_ARG) + arg_types = 0; + /* Emit ENDBR64 at function entry if needed. */ FAIL_IF(emit_endbranch(compiler)); compiler->mode32 = 0; -#ifdef _WIN64 - /* Two/four register slots for parameters plus space for xmm6 register if needed. */ - if (fscratches >= 6 || fsaveds >= 1) - compiler->locals_offset = 6 * sizeof(sljit_sw); - else - compiler->locals_offset = ((scratches > 2) ? 4 : 2) * sizeof(sljit_sw); -#endif - /* Including the return address saved by the call instruction. */ - saved_register_size = GET_SAVED_REGISTERS_SIZE(scratches, saveds, 1); + saved_regs_size = GET_SAVED_REGISTERS_SIZE(scratches, saveds - saved_arg_count, 1); - tmp = saveds < SLJIT_NUMBER_OF_SAVED_REGISTERS ? (SLJIT_S0 + 1 - saveds) : SLJIT_FIRST_SAVED_REG; - for (i = SLJIT_S0; i >= tmp; i--) { + tmp = SLJIT_S0 - saveds; + for (i = SLJIT_S0 - saved_arg_count; i > tmp; i--) { size = reg_map[i] >= 8 ? 2 : 1; inst = (sljit_u8*)ensure_buf(compiler, 1 + size); FAIL_IF(!inst); @@ -172,55 +500,75 @@ SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_enter(struct sljit_compiler *compi PUSH_REG(reg_lmap[i]); } - args = get_arg_count(arg_types); +#ifdef _WIN64 + local_size += SLJIT_LOCALS_OFFSET; + saved_float_regs_size = GET_SAVED_FLOAT_REGISTERS_SIZE(fscratches, fsaveds, sse2_reg); - if (args > 0) { - size = args * 3; - inst = (sljit_u8*)ensure_buf(compiler, 1 + size); - FAIL_IF(!inst); + if (saved_float_regs_size > 0) { + saved_float_regs_offset = ((local_size + 0xf) & ~0xf); + local_size = saved_float_regs_offset + saved_float_regs_size; + } +#else /* !_WIN64 */ + SLJIT_ASSERT(SLJIT_LOCALS_OFFSET == 0); +#endif /* _WIN64 */ - INC_SIZE(size); + arg_types >>= SLJIT_ARG_SHIFT; + while (arg_types > 0) { + if ((arg_types & SLJIT_ARG_MASK) < SLJIT_ARG_TYPE_F64) { + tmp = 0; #ifndef _WIN64 - if (args > 0) { - inst[0] = REX_W; - inst[1] = MOV_r_rm; - inst[2] = MOD_REG | (reg_map[SLJIT_S0] << 3) | 0x7 /* rdi */; - inst += 3; - } - if (args > 1) { - inst[0] = REX_W | REX_R; - inst[1] = MOV_r_rm; - inst[2] = MOD_REG | (reg_lmap[SLJIT_S1] << 3) | 0x6 /* rsi */; - inst += 3; - } - if (args > 2) { - inst[0] = REX_W | REX_R; - inst[1] = MOV_r_rm; - inst[2] = MOD_REG | (reg_lmap[SLJIT_S2] << 3) | 0x2 /* rdx */; - } -#else - if (args > 0) { - inst[0] = REX_W; - inst[1] = MOV_r_rm; - inst[2] = MOD_REG | (reg_map[SLJIT_S0] << 3) | 0x1 /* rcx */; - inst += 3; - } - if (args > 1) { - inst[0] = REX_W; - inst[1] = MOV_r_rm; - inst[2] = MOD_REG | (reg_map[SLJIT_S1] << 3) | 0x2 /* rdx */; - inst += 3; - } - if (args > 2) { - inst[0] = REX_W | REX_B; - inst[1] = MOV_r_rm; - inst[2] = MOD_REG | (reg_map[SLJIT_S2] << 3) | 0x0 /* r8 */; + switch (word_arg_count) { + case 0: + tmp = SLJIT_R2; + break; + case 1: + tmp = SLJIT_R1; + break; + case 2: + tmp = TMP_REG1; + break; + default: + tmp = SLJIT_R3; + break; + } +#else /* !_WIN64 */ + switch (word_arg_count + float_arg_count) { + case 0: + tmp = SLJIT_R3; + break; + case 1: + tmp = SLJIT_R1; + break; + case 2: + tmp = SLJIT_R2; + break; + default: + tmp = TMP_REG1; + break; + } +#endif /* _WIN64 */ + if (arg_types & SLJIT_ARG_TYPE_SCRATCH_REG) { + if (tmp != SLJIT_R0 + word_arg_count) + EMIT_MOV(compiler, SLJIT_R0 + word_arg_count, 0, tmp, 0); + } else { + EMIT_MOV(compiler, SLJIT_S0 - saved_arg_count, 0, tmp, 0); + saved_arg_count++; + } + word_arg_count++; + } else { +#ifdef _WIN64 + SLJIT_COMPILE_ASSERT(SLJIT_FR0 == 1, float_register_index_start); + float_arg_count++; + if (float_arg_count != float_arg_count + word_arg_count) + FAIL_IF(emit_sse2_load(compiler, (arg_types & SLJIT_ARG_MASK) == SLJIT_ARG_TYPE_F32, + float_arg_count, float_arg_count + word_arg_count, 0)); +#endif /* _WIN64 */ } -#endif + arg_types >>= SLJIT_ARG_SHIFT; } - local_size = ((local_size + SLJIT_LOCALS_OFFSET + saved_register_size + 15) & ~15) - saved_register_size; + local_size = ((local_size + saved_regs_size + 0xf) & ~0xf) - saved_regs_size; compiler->local_size = local_size; #ifdef _WIN64 @@ -234,44 +582,45 @@ SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_enter(struct sljit_compiler *compi EMIT_MOV(compiler, TMP_REG1, 0, SLJIT_MEM1(SLJIT_SP), -4096 * 3); } else { - EMIT_MOV(compiler, SLJIT_R0, 0, SLJIT_SP, 0); - EMIT_MOV(compiler, TMP_REG1, 0, SLJIT_IMM, (local_size - 1) >> 12); - - SLJIT_ASSERT (reg_map[SLJIT_R0] == 0); + EMIT_MOV(compiler, TMP_REG1, 0, SLJIT_IMM, local_size >> 12); - EMIT_MOV(compiler, TMP_REG2, 0, SLJIT_MEM1(SLJIT_R0), -4096); - FAIL_IF(emit_non_cum_binary(compiler, BINARY_OPCODE(SUB), - SLJIT_R0, 0, SLJIT_R0, 0, SLJIT_IMM, 4096)); - FAIL_IF(emit_non_cum_binary(compiler, BINARY_OPCODE(SUB), - TMP_REG1, 0, TMP_REG1, 0, SLJIT_IMM, 1)); + EMIT_MOV(compiler, TMP_REG2, 0, SLJIT_MEM1(SLJIT_SP), -4096); + BINARY_IMM32(SUB, 4096, SLJIT_SP, 0); + BINARY_IMM32(SUB, 1, TMP_REG1, 0); inst = (sljit_u8*)ensure_buf(compiler, 1 + 2); FAIL_IF(!inst); INC_SIZE(2); inst[0] = JNE_i8; - inst[1] = (sljit_s8) -19; + inst[1] = (sljit_u8)-21; + local_size &= 0xfff; } - EMIT_MOV(compiler, TMP_REG1, 0, SLJIT_MEM1(SLJIT_SP), -local_size); + if (local_size > 0) + EMIT_MOV(compiler, TMP_REG1, 0, SLJIT_MEM1(SLJIT_SP), -local_size); } -#endif +#endif /* _WIN64 */ - if (local_size > 0) { - FAIL_IF(emit_non_cum_binary(compiler, BINARY_OPCODE(SUB), - SLJIT_SP, 0, SLJIT_SP, 0, SLJIT_IMM, local_size)); - } + if (local_size > 0) + BINARY_IMM32(SUB, local_size, SLJIT_SP, 0); #ifdef _WIN64 - /* Save xmm6 register: movaps [rsp + 0x20], xmm6 */ - if (fscratches >= 6 || fsaveds >= 1) { - inst = (sljit_u8*)ensure_buf(compiler, 1 + 5); - FAIL_IF(!inst); - INC_SIZE(5); - *inst++ = GROUP_0F; - sljit_unaligned_store_s32(inst, 0x20247429); + if (saved_float_regs_size > 0) { + compiler->mode32 = 1; + + tmp = SLJIT_FS0 - fsaveds; + for (i = SLJIT_FS0; i > tmp; i--) { + FAIL_IF(emit_groupf(compiler, MOVAPS_xm_x | EX86_SSE2, i, SLJIT_MEM1(SLJIT_SP), saved_float_regs_offset)); + saved_float_regs_offset += 16; + } + + for (i = fscratches; i >= SLJIT_FIRST_SAVED_FLOAT_REG; i--) { + FAIL_IF(emit_groupf(compiler, MOVAPS_xm_x | EX86_SSE2, i, SLJIT_MEM1(SLJIT_SP), saved_float_regs_offset)); + saved_float_regs_offset += 16; + } } -#endif +#endif /* _WIN64 */ return SLJIT_SUCCESS; } @@ -280,67 +629,73 @@ SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_set_context(struct sljit_compiler *comp sljit_s32 options, sljit_s32 arg_types, sljit_s32 scratches, sljit_s32 saveds, sljit_s32 fscratches, sljit_s32 fsaveds, sljit_s32 local_size) { - sljit_s32 saved_register_size; + sljit_s32 saved_regs_size; +#ifdef _WIN64 + sljit_s32 saved_float_regs_size; +#endif /* _WIN64 */ CHECK_ERROR(); CHECK(check_sljit_set_context(compiler, options, arg_types, scratches, saveds, fscratches, fsaveds, local_size)); set_set_context(compiler, options, arg_types, scratches, saveds, fscratches, fsaveds, local_size); #ifdef _WIN64 - /* Two/four register slots for parameters plus space for xmm6 register if needed. */ - if (fscratches >= 6 || fsaveds >= 1) - compiler->locals_offset = 6 * sizeof(sljit_sw); - else - compiler->locals_offset = ((scratches > 2) ? 4 : 2) * sizeof(sljit_sw); -#endif + local_size += SLJIT_LOCALS_OFFSET; + saved_float_regs_size = GET_SAVED_FLOAT_REGISTERS_SIZE(fscratches, fsaveds, sse2_reg); + + if (saved_float_regs_size > 0) + local_size = ((local_size + 0xf) & ~0xf) + saved_float_regs_size; +#else /* !_WIN64 */ + SLJIT_ASSERT(SLJIT_LOCALS_OFFSET == 0); +#endif /* _WIN64 */ /* Including the return address saved by the call instruction. */ - saved_register_size = GET_SAVED_REGISTERS_SIZE(scratches, saveds, 1); - compiler->local_size = ((local_size + SLJIT_LOCALS_OFFSET + saved_register_size + 15) & ~15) - saved_register_size; + saved_regs_size = GET_SAVED_REGISTERS_SIZE(scratches, saveds - SLJIT_KEPT_SAVEDS_COUNT(options), 1); + compiler->local_size = ((local_size + saved_regs_size + 0xf) & ~0xf) - saved_regs_size; return SLJIT_SUCCESS; } -SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_return(struct sljit_compiler *compiler, sljit_s32 op, sljit_s32 src, sljit_sw srcw) +static sljit_s32 emit_stack_frame_release(struct sljit_compiler *compiler, sljit_s32 is_return_to) { - sljit_s32 i, tmp, size; + sljit_uw size; + sljit_s32 local_size, i, tmp; sljit_u8 *inst; - - CHECK_ERROR(); - CHECK(check_sljit_emit_return(compiler, op, src, srcw)); - - FAIL_IF(emit_mov_before_return(compiler, op, src, srcw)); +#ifdef _WIN64 + sljit_s32 saved_float_regs_offset; + sljit_s32 fscratches = compiler->fscratches; + sljit_s32 fsaveds = compiler->fsaveds; +#endif /* _WIN64 */ #ifdef _WIN64 - /* Restore xmm6 register: movaps xmm6, [rsp + 0x20] */ - if (compiler->fscratches >= 6 || compiler->fsaveds >= 1) { - inst = (sljit_u8*)ensure_buf(compiler, 1 + 5); - FAIL_IF(!inst); - INC_SIZE(5); - *inst++ = GROUP_0F; - sljit_unaligned_store_s32(inst, 0x20247428); - } -#endif + saved_float_regs_offset = GET_SAVED_FLOAT_REGISTERS_SIZE(fscratches, fsaveds, sse2_reg); - if (compiler->local_size > 0) { - if (compiler->local_size <= 127) { - inst = (sljit_u8*)ensure_buf(compiler, 1 + 4); - FAIL_IF(!inst); - INC_SIZE(4); - *inst++ = REX_W; - *inst++ = GROUP_BINARY_83; - *inst++ = MOD_REG | ADD | 4; - *inst = compiler->local_size; + if (saved_float_regs_offset > 0) { + compiler->mode32 = 1; + saved_float_regs_offset = (compiler->local_size - saved_float_regs_offset) & ~0xf; + + tmp = SLJIT_FS0 - fsaveds; + for (i = SLJIT_FS0; i > tmp; i--) { + FAIL_IF(emit_groupf(compiler, MOVAPS_x_xm | EX86_SSE2, i, SLJIT_MEM1(SLJIT_SP), saved_float_regs_offset)); + saved_float_regs_offset += 16; } - else { - inst = (sljit_u8*)ensure_buf(compiler, 1 + 7); - FAIL_IF(!inst); - INC_SIZE(7); - *inst++ = REX_W; - *inst++ = GROUP_BINARY_81; - *inst++ = MOD_REG | ADD | 4; - sljit_unaligned_store_s32(inst, compiler->local_size); + + for (i = fscratches; i >= SLJIT_FIRST_SAVED_FLOAT_REG; i--) { + FAIL_IF(emit_groupf(compiler, MOVAPS_x_xm | EX86_SSE2, i, SLJIT_MEM1(SLJIT_SP), saved_float_regs_offset)); + saved_float_regs_offset += 16; } + + compiler->mode32 = 0; } +#endif /* _WIN64 */ + + local_size = compiler->local_size; + + if (is_return_to && compiler->scratches < SLJIT_FIRST_SAVED_REG && (compiler->saveds == SLJIT_KEPT_SAVEDS_COUNT(compiler->options))) { + local_size += SSIZE_OF(sw); + is_return_to = 0; + } + + if (local_size > 0) + BINARY_IMM32(ADD, local_size, SLJIT_SP, 0); tmp = compiler->scratches; for (i = SLJIT_FIRST_SAVED_REG; i <= tmp; i++) { @@ -353,8 +708,8 @@ SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_return(struct sljit_compiler *comp POP_REG(reg_lmap[i]); } - tmp = compiler->saveds < SLJIT_NUMBER_OF_SAVED_REGISTERS ? (SLJIT_S0 + 1 - compiler->saveds) : SLJIT_FIRST_SAVED_REG; - for (i = tmp; i <= SLJIT_S0; i++) { + tmp = SLJIT_S0 - SLJIT_KEPT_SAVEDS_COUNT(compiler->options); + for (i = SLJIT_S0 + 1 - compiler->saveds; i <= tmp; i++) { size = reg_map[i] >= 8 ? 2 : 1; inst = (sljit_u8*)ensure_buf(compiler, 1 + size); FAIL_IF(!inst); @@ -364,243 +719,43 @@ SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_return(struct sljit_compiler *comp POP_REG(reg_lmap[i]); } - inst = (sljit_u8*)ensure_buf(compiler, 1 + 1); - FAIL_IF(!inst); - INC_SIZE(1); - RET(); - return SLJIT_SUCCESS; -} - -/* --------------------------------------------------------------------- */ -/* Operators */ -/* --------------------------------------------------------------------- */ - -static sljit_s32 emit_do_imm32(struct sljit_compiler *compiler, sljit_u8 rex, sljit_u8 opcode, sljit_sw imm) -{ - sljit_u8 *inst; - sljit_s32 length = 1 + (rex ? 1 : 0) + sizeof(sljit_s32); + if (is_return_to) + BINARY_IMM32(ADD, sizeof(sljit_sw), SLJIT_SP, 0); - inst = (sljit_u8*)ensure_buf(compiler, 1 + length); - FAIL_IF(!inst); - INC_SIZE(length); - if (rex) - *inst++ = rex; - *inst++ = opcode; - sljit_unaligned_store_s32(inst, imm); return SLJIT_SUCCESS; } -static sljit_u8* emit_x86_instruction(struct sljit_compiler *compiler, sljit_s32 size, - /* The register or immediate operand. */ - sljit_s32 a, sljit_sw imma, - /* The general operand (not immediate). */ - sljit_s32 b, sljit_sw immb) +SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_return_void(struct sljit_compiler *compiler) { - sljit_u8 *inst; - sljit_u8 *buf_ptr; - sljit_u8 rex = 0; - sljit_s32 flags = size & ~0xf; - sljit_s32 inst_size; - - /* The immediate operand must be 32 bit. */ - SLJIT_ASSERT(!(a & SLJIT_IMM) || compiler->mode32 || IS_HALFWORD(imma)); - /* Both cannot be switched on. */ - SLJIT_ASSERT((flags & (EX86_BIN_INS | EX86_SHIFT_INS)) != (EX86_BIN_INS | EX86_SHIFT_INS)); - /* Size flags not allowed for typed instructions. */ - SLJIT_ASSERT(!(flags & (EX86_BIN_INS | EX86_SHIFT_INS)) || (flags & (EX86_BYTE_ARG | EX86_HALF_ARG)) == 0); - /* Both size flags cannot be switched on. */ - SLJIT_ASSERT((flags & (EX86_BYTE_ARG | EX86_HALF_ARG)) != (EX86_BYTE_ARG | EX86_HALF_ARG)); - /* SSE2 and immediate is not possible. */ - SLJIT_ASSERT(!(a & SLJIT_IMM) || !(flags & EX86_SSE2)); - SLJIT_ASSERT((flags & (EX86_PREF_F2 | EX86_PREF_F3)) != (EX86_PREF_F2 | EX86_PREF_F3) - && (flags & (EX86_PREF_F2 | EX86_PREF_66)) != (EX86_PREF_F2 | EX86_PREF_66) - && (flags & (EX86_PREF_F3 | EX86_PREF_66)) != (EX86_PREF_F3 | EX86_PREF_66)); - - size &= 0xf; - inst_size = size; - - if (!compiler->mode32 && !(flags & EX86_NO_REXW)) - rex |= REX_W; - else if (flags & EX86_REX) - rex |= REX; - - if (flags & (EX86_PREF_F2 | EX86_PREF_F3)) - inst_size++; - if (flags & EX86_PREF_66) - inst_size++; - - /* Calculate size of b. */ - inst_size += 1; /* mod r/m byte. */ - if (b & SLJIT_MEM) { - if (!(b & OFFS_REG_MASK)) { - if (NOT_HALFWORD(immb)) { - PTR_FAIL_IF(emit_load_imm64(compiler, TMP_REG2, immb)); - immb = 0; - if (b & REG_MASK) - b |= TO_OFFS_REG(TMP_REG2); - else - b |= TMP_REG2; - } - else if (reg_lmap[b & REG_MASK] == 4) - b |= TO_OFFS_REG(SLJIT_SP); - } - - if ((b & REG_MASK) == SLJIT_UNUSED) - inst_size += 1 + sizeof(sljit_s32); /* SIB byte required to avoid RIP based addressing. */ - else { - if (reg_map[b & REG_MASK] >= 8) - rex |= REX_B; - - if (immb != 0 && (!(b & OFFS_REG_MASK) || (b & OFFS_REG_MASK) == TO_OFFS_REG(SLJIT_SP))) { - /* Immediate operand. */ - if (immb <= 127 && immb >= -128) - inst_size += sizeof(sljit_s8); - else - inst_size += sizeof(sljit_s32); - } - else if (reg_lmap[b & REG_MASK] == 5) - inst_size += sizeof(sljit_s8); - - if ((b & OFFS_REG_MASK) != SLJIT_UNUSED) { - inst_size += 1; /* SIB byte. */ - if (reg_map[OFFS_REG(b)] >= 8) - rex |= REX_X; - } - } - } - else if (!(flags & EX86_SSE2_OP2)) { - if (reg_map[b] >= 8) - rex |= REX_B; - } - else if (freg_map[b] >= 8) - rex |= REX_B; - - if (a & SLJIT_IMM) { - if (flags & EX86_BIN_INS) { - if (imma <= 127 && imma >= -128) { - inst_size += 1; - flags |= EX86_BYTE_ARG; - } else - inst_size += 4; - } - else if (flags & EX86_SHIFT_INS) { - imma &= compiler->mode32 ? 0x1f : 0x3f; - if (imma != 1) { - inst_size ++; - flags |= EX86_BYTE_ARG; - } - } else if (flags & EX86_BYTE_ARG) - inst_size++; - else if (flags & EX86_HALF_ARG) - inst_size += sizeof(short); - else - inst_size += sizeof(sljit_s32); - } - else { - SLJIT_ASSERT(!(flags & EX86_SHIFT_INS) || a == SLJIT_PREF_SHIFT_REG); - /* reg_map[SLJIT_PREF_SHIFT_REG] is less than 8. */ - if (!(flags & EX86_SSE2_OP1)) { - if (reg_map[a] >= 8) - rex |= REX_R; - } - else if (freg_map[a] >= 8) - rex |= REX_R; - } - - if (rex) - inst_size++; - - inst = (sljit_u8*)ensure_buf(compiler, 1 + inst_size); - PTR_FAIL_IF(!inst); + CHECK_ERROR(); + CHECK(check_sljit_emit_return_void(compiler)); - /* Encoding the byte. */ - INC_SIZE(inst_size); - if (flags & EX86_PREF_F2) - *inst++ = 0xf2; - if (flags & EX86_PREF_F3) - *inst++ = 0xf3; - if (flags & EX86_PREF_66) - *inst++ = 0x66; - if (rex) - *inst++ = rex; - buf_ptr = inst + size; + compiler->mode32 = 0; - /* Encode mod/rm byte. */ - if (!(flags & EX86_SHIFT_INS)) { - if ((flags & EX86_BIN_INS) && (a & SLJIT_IMM)) - *inst = (flags & EX86_BYTE_ARG) ? GROUP_BINARY_83 : GROUP_BINARY_81; + FAIL_IF(emit_stack_frame_release(compiler, 0)); + return emit_byte(compiler, RET_near); +} - if (a & SLJIT_IMM) - *buf_ptr = 0; - else if (!(flags & EX86_SSE2_OP1)) - *buf_ptr = reg_lmap[a] << 3; - else - *buf_ptr = freg_lmap[a] << 3; - } - else { - if (a & SLJIT_IMM) { - if (imma == 1) - *inst = GROUP_SHIFT_1; - else - *inst = GROUP_SHIFT_N; - } else - *inst = GROUP_SHIFT_CL; - *buf_ptr = 0; - } +SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_return_to(struct sljit_compiler *compiler, + sljit_s32 src, sljit_sw srcw) +{ + CHECK_ERROR(); + CHECK(check_sljit_emit_return_to(compiler, src, srcw)); - if (!(b & SLJIT_MEM)) - *buf_ptr++ |= MOD_REG + ((!(flags & EX86_SSE2_OP2)) ? reg_lmap[b] : freg_lmap[b]); - else if ((b & REG_MASK) != SLJIT_UNUSED) { - if ((b & OFFS_REG_MASK) == SLJIT_UNUSED || (b & OFFS_REG_MASK) == TO_OFFS_REG(SLJIT_SP)) { - if (immb != 0 || reg_lmap[b & REG_MASK] == 5) { - if (immb <= 127 && immb >= -128) - *buf_ptr |= 0x40; - else - *buf_ptr |= 0x80; - } + compiler->mode32 = 0; - if ((b & OFFS_REG_MASK) == SLJIT_UNUSED) - *buf_ptr++ |= reg_lmap[b & REG_MASK]; - else { - *buf_ptr++ |= 0x04; - *buf_ptr++ = reg_lmap[b & REG_MASK] | (reg_lmap[OFFS_REG(b)] << 3); - } + if ((src & SLJIT_MEM) || (src >= SLJIT_FIRST_SAVED_REG && src <= (SLJIT_S0 - SLJIT_KEPT_SAVEDS_COUNT(compiler->options)))) { + ADJUST_LOCAL_OFFSET(src, srcw); - if (immb != 0 || reg_lmap[b & REG_MASK] == 5) { - if (immb <= 127 && immb >= -128) - *buf_ptr++ = immb; /* 8 bit displacement. */ - else { - sljit_unaligned_store_s32(buf_ptr, immb); /* 32 bit displacement. */ - buf_ptr += sizeof(sljit_s32); - } - } - } - else { - if (reg_lmap[b & REG_MASK] == 5) - *buf_ptr |= 0x40; - *buf_ptr++ |= 0x04; - *buf_ptr++ = reg_lmap[b & REG_MASK] | (reg_lmap[OFFS_REG(b)] << 3) | (immb << 6); - if (reg_lmap[b & REG_MASK] == 5) - *buf_ptr++ = 0; - } - } - else { - *buf_ptr++ |= 0x04; - *buf_ptr++ = 0x25; - sljit_unaligned_store_s32(buf_ptr, immb); /* 32 bit displacement. */ - buf_ptr += sizeof(sljit_s32); + EMIT_MOV(compiler, TMP_REG2, 0, src, srcw); + src = TMP_REG2; + srcw = 0; } - if (a & SLJIT_IMM) { - if (flags & EX86_BYTE_ARG) - *buf_ptr = imma; - else if (flags & EX86_HALF_ARG) - sljit_unaligned_store_s16(buf_ptr, imma); - else if (!(flags & EX86_SHIFT_INS)) - sljit_unaligned_store_s32(buf_ptr, imma); - } + FAIL_IF(emit_stack_frame_release(compiler, 1)); - return !(flags & EX86_SHIFT_INS) ? inst : (inst + 1); + SLJIT_SKIP_CHECKS(compiler); + return sljit_emit_ijump(compiler, SLJIT_JUMP, src, srcw); } /* --------------------------------------------------------------------- */ @@ -609,43 +764,38 @@ static sljit_u8* emit_x86_instruction(struct sljit_compiler *compiler, sljit_s32 #ifndef _WIN64 -static sljit_s32 call_with_args(struct sljit_compiler *compiler, sljit_s32 arg_types, sljit_s32 *src_ptr, sljit_sw srcw) +static sljit_s32 call_with_args(struct sljit_compiler *compiler, sljit_s32 arg_types, sljit_s32 *src_ptr) { sljit_s32 src = src_ptr ? (*src_ptr) : 0; sljit_s32 word_arg_count = 0; SLJIT_ASSERT(reg_map[SLJIT_R1] == 6 && reg_map[SLJIT_R3] == 1 && reg_map[TMP_REG1] == 2); - - compiler->mode32 = 0; + SLJIT_ASSERT(!(src & SLJIT_MEM)); /* Remove return value. */ - arg_types >>= SLJIT_DEF_SHIFT; + arg_types >>= SLJIT_ARG_SHIFT; while (arg_types) { - if ((arg_types & SLJIT_DEF_MASK) < SLJIT_ARG_TYPE_F32) + if ((arg_types & SLJIT_ARG_MASK) < SLJIT_ARG_TYPE_F64) word_arg_count++; - arg_types >>= SLJIT_DEF_SHIFT; + arg_types >>= SLJIT_ARG_SHIFT; } if (word_arg_count == 0) return SLJIT_SUCCESS; - if (src & SLJIT_MEM) { - ADJUST_LOCAL_OFFSET(src, srcw); - EMIT_MOV(compiler, TMP_REG2, 0, src, srcw); - *src_ptr = TMP_REG2; + if (word_arg_count >= 3) { + if (src == SLJIT_R2) + *src_ptr = TMP_REG1; + EMIT_MOV(compiler, TMP_REG1, 0, SLJIT_R2, 0); } - else if (src == SLJIT_R2 && word_arg_count >= SLJIT_R2) - *src_ptr = TMP_REG1; - if (word_arg_count >= 3) - EMIT_MOV(compiler, TMP_REG1, 0, SLJIT_R2, 0); return emit_mov(compiler, SLJIT_R2, 0, SLJIT_R0, 0); } #else -static sljit_s32 call_with_args(struct sljit_compiler *compiler, sljit_s32 arg_types, sljit_s32 *src_ptr, sljit_sw srcw) +static sljit_s32 call_with_args(struct sljit_compiler *compiler, sljit_s32 arg_types, sljit_s32 *src_ptr) { sljit_s32 src = src_ptr ? (*src_ptr) : 0; sljit_s32 arg_count = 0; @@ -656,16 +806,16 @@ static sljit_s32 call_with_args(struct sljit_compiler *compiler, sljit_s32 arg_t static sljit_u8 word_arg_regs[5] = { 0, SLJIT_R3, SLJIT_R1, SLJIT_R2, TMP_REG1 }; SLJIT_ASSERT(reg_map[SLJIT_R3] == 1 && reg_map[SLJIT_R1] == 2 && reg_map[SLJIT_R2] == 8 && reg_map[TMP_REG1] == 9); + SLJIT_ASSERT(!(src & SLJIT_MEM)); - compiler->mode32 = 0; - arg_types >>= SLJIT_DEF_SHIFT; + arg_types >>= SLJIT_ARG_SHIFT; while (arg_types) { - types = (types << SLJIT_DEF_SHIFT) | (arg_types & SLJIT_DEF_MASK); + types = (types << SLJIT_ARG_SHIFT) | (arg_types & SLJIT_ARG_MASK); - switch (arg_types & SLJIT_DEF_MASK) { - case SLJIT_ARG_TYPE_F32: + switch (arg_types & SLJIT_ARG_MASK) { case SLJIT_ARG_TYPE_F64: + case SLJIT_ARG_TYPE_F32: arg_count++; float_arg_count++; @@ -687,29 +837,23 @@ static sljit_s32 call_with_args(struct sljit_compiler *compiler, sljit_s32 arg_t break; } - arg_types >>= SLJIT_DEF_SHIFT; + arg_types >>= SLJIT_ARG_SHIFT; } if (!data_trandfer) return SLJIT_SUCCESS; - if (src & SLJIT_MEM) { - ADJUST_LOCAL_OFFSET(src, srcw); - EMIT_MOV(compiler, TMP_REG2, 0, src, srcw); - *src_ptr = TMP_REG2; - } - while (types) { - switch (types & SLJIT_DEF_MASK) { - case SLJIT_ARG_TYPE_F32: + switch (types & SLJIT_ARG_MASK) { + case SLJIT_ARG_TYPE_F64: if (arg_count != float_arg_count) - FAIL_IF(emit_sse2_load(compiler, 1, arg_count, float_arg_count, 0)); + FAIL_IF(emit_sse2_load(compiler, 0, arg_count, float_arg_count, 0)); arg_count--; float_arg_count--; break; - case SLJIT_ARG_TYPE_F64: + case SLJIT_ARG_TYPE_F32: if (arg_count != float_arg_count) - FAIL_IF(emit_sse2_load(compiler, 0, arg_count, float_arg_count, 0)); + FAIL_IF(emit_sse2_load(compiler, 1, arg_count, float_arg_count, 0)); arg_count--; float_arg_count--; break; @@ -721,7 +865,7 @@ static sljit_s32 call_with_args(struct sljit_compiler *compiler, sljit_s32 arg_t break; } - types >>= SLJIT_DEF_SHIFT; + types >>= SLJIT_ARG_SHIFT; } return SLJIT_SUCCESS; @@ -735,13 +879,17 @@ SLJIT_API_FUNC_ATTRIBUTE struct sljit_jump* sljit_emit_call(struct sljit_compile CHECK_ERROR_PTR(); CHECK_PTR(check_sljit_emit_call(compiler, type, arg_types)); - PTR_FAIL_IF(call_with_args(compiler, arg_types, NULL, 0)); + compiler->mode32 = 0; -#if (defined SLJIT_VERBOSE && SLJIT_VERBOSE) \ - || (defined SLJIT_ARGUMENT_CHECKS && SLJIT_ARGUMENT_CHECKS) - compiler->skip_checks = 1; -#endif + if ((type & 0xff) != SLJIT_CALL_REG_ARG) + PTR_FAIL_IF(call_with_args(compiler, arg_types, NULL)); + if (type & SLJIT_CALL_RETURN) { + PTR_FAIL_IF(emit_stack_frame_release(compiler, 0)); + type = SLJIT_JUMP | (type & SLJIT_REWRITABLE_JUMP); + } + + SLJIT_SKIP_CHECKS(compiler); return sljit_emit_jump(compiler, type); } @@ -752,36 +900,40 @@ SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_icall(struct sljit_compiler *compi CHECK_ERROR(); CHECK(check_sljit_emit_icall(compiler, type, arg_types, src, srcw)); - FAIL_IF(call_with_args(compiler, arg_types, &src, srcw)); + compiler->mode32 = 0; -#if (defined SLJIT_VERBOSE && SLJIT_VERBOSE) \ - || (defined SLJIT_ARGUMENT_CHECKS && SLJIT_ARGUMENT_CHECKS) - compiler->skip_checks = 1; -#endif + if (src & SLJIT_MEM) { + ADJUST_LOCAL_OFFSET(src, srcw); + EMIT_MOV(compiler, TMP_REG2, 0, src, srcw); + src = TMP_REG2; + } + if (type & SLJIT_CALL_RETURN) { + if (src >= SLJIT_FIRST_SAVED_REG && src <= (SLJIT_S0 - SLJIT_KEPT_SAVEDS_COUNT(compiler->options))) { + EMIT_MOV(compiler, TMP_REG2, 0, src, srcw); + src = TMP_REG2; + } + + FAIL_IF(emit_stack_frame_release(compiler, 0)); + } + + if ((type & 0xff) != SLJIT_CALL_REG_ARG) + FAIL_IF(call_with_args(compiler, arg_types, &src)); + + if (type & SLJIT_CALL_RETURN) + type = SLJIT_JUMP; + + SLJIT_SKIP_CHECKS(compiler); return sljit_emit_ijump(compiler, type, src, srcw); } -SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_fast_enter(struct sljit_compiler *compiler, sljit_s32 dst, sljit_sw dstw) +static sljit_s32 emit_fast_enter(struct sljit_compiler *compiler, sljit_s32 dst, sljit_sw dstw) { sljit_u8 *inst; - CHECK_ERROR(); - CHECK(check_sljit_emit_fast_enter(compiler, dst, dstw)); - ADJUST_LOCAL_OFFSET(dst, dstw); - - /* For UNUSED dst. Uncommon, but possible. */ - if (dst == SLJIT_UNUSED) - dst = TMP_REG1; - if (FAST_IS_REG(dst)) { - if (reg_map[dst] < 8) { - inst = (sljit_u8*)ensure_buf(compiler, 1 + 1); - FAIL_IF(!inst); - INC_SIZE(1); - POP_REG(reg_lmap[dst]); - return SLJIT_SUCCESS; - } + if (reg_map[dst] < 8) + return emit_byte(compiler, U8(POP_r + reg_lmap[dst])); inst = (sljit_u8*)ensure_buf(compiler, 1 + 2); FAIL_IF(!inst); @@ -795,7 +947,7 @@ SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_fast_enter(struct sljit_compiler * compiler->mode32 = 1; inst = emit_x86_instruction(compiler, 1, 0, 0, dst, dstw); FAIL_IF(!inst); - *inst++ = POP_rm; + *inst = POP_rm; return SLJIT_SUCCESS; } @@ -825,8 +977,8 @@ static sljit_s32 emit_fast_return(struct sljit_compiler *compiler, sljit_s32 src compiler->mode32 = 1; inst = emit_x86_instruction(compiler, 1, 0, 0, src, srcw); FAIL_IF(!inst); - *inst++ = GROUP_FF; - *inst |= PUSH_rm; + inst[0] = GROUP_FF; + inst[1] |= PUSH_rm; inst = (sljit_u8*)ensure_buf(compiler, 1 + 1); FAIL_IF(!inst); @@ -837,10 +989,100 @@ static sljit_s32 emit_fast_return(struct sljit_compiler *compiler, sljit_s32 src return SLJIT_SUCCESS; } +static sljit_s32 sljit_emit_get_return_address(struct sljit_compiler *compiler, + sljit_s32 dst, sljit_sw dstw) +{ + sljit_s32 saved_regs_size; + + compiler->mode32 = 0; + saved_regs_size = GET_SAVED_REGISTERS_SIZE(compiler->scratches, compiler->saveds - SLJIT_KEPT_SAVEDS_COUNT(compiler->options), 0); + return emit_mov(compiler, dst, dstw, SLJIT_MEM1(SLJIT_SP), compiler->local_size + saved_regs_size); +} + /* --------------------------------------------------------------------- */ -/* Extend input */ +/* Other operations */ /* --------------------------------------------------------------------- */ +SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_mem(struct sljit_compiler *compiler, sljit_s32 type, + sljit_s32 reg, + sljit_s32 mem, sljit_sw memw) +{ + sljit_u8* inst; + sljit_s32 i, next, reg_idx; + sljit_u8 regs[2]; + + CHECK_ERROR(); + CHECK(check_sljit_emit_mem(compiler, type, reg, mem, memw)); + + if (!(reg & REG_PAIR_MASK)) + return sljit_emit_mem_unaligned(compiler, type, reg, mem, memw); + + ADJUST_LOCAL_OFFSET(mem, memw); + + compiler->mode32 = 0; + + if ((mem & REG_MASK) == 0) { + EMIT_MOV(compiler, TMP_REG1, 0, SLJIT_IMM, memw); + + mem = SLJIT_MEM1(TMP_REG1); + memw = 0; + } else if (!(mem & OFFS_REG_MASK) && ((memw < HALFWORD_MIN) || (memw > HALFWORD_MAX - SSIZE_OF(sw)))) { + EMIT_MOV(compiler, TMP_REG1, 0, SLJIT_IMM, memw); + + mem = SLJIT_MEM2(mem & REG_MASK, TMP_REG1); + memw = 0; + } + + regs[0] = U8(REG_PAIR_FIRST(reg)); + regs[1] = U8(REG_PAIR_SECOND(reg)); + + next = SSIZE_OF(sw); + + if (!(type & SLJIT_MEM_STORE) && (regs[0] == (mem & REG_MASK) || regs[0] == OFFS_REG(mem))) { + if (regs[1] == (mem & REG_MASK) || regs[1] == OFFS_REG(mem)) { + /* Base and offset cannot be TMP_REG1. */ + EMIT_MOV(compiler, TMP_REG1, 0, OFFS_REG(mem), 0); + + if (regs[1] == OFFS_REG(mem)) + next = -SSIZE_OF(sw); + + mem = (mem & ~OFFS_REG_MASK) | TO_OFFS_REG(TMP_REG1); + } else { + next = -SSIZE_OF(sw); + + if (!(mem & OFFS_REG_MASK)) + memw += SSIZE_OF(sw); + } + } + + for (i = 0; i < 2; i++) { + reg_idx = next > 0 ? i : (i ^ 0x1); + reg = regs[reg_idx]; + + if ((mem & OFFS_REG_MASK) && (reg_idx == 1)) { + inst = (sljit_u8*)ensure_buf(compiler, (sljit_uw)(1 + 5)); + FAIL_IF(!inst); + + INC_SIZE(5); + + inst[0] = U8(REX_W | ((reg_map[reg] >= 8) ? REX_R : 0) | ((reg_map[mem & REG_MASK] >= 8) ? REX_B : 0) | ((reg_map[OFFS_REG(mem)] >= 8) ? REX_X : 0)); + inst[1] = (type & SLJIT_MEM_STORE) ? MOV_rm_r : MOV_r_rm; + inst[2] = 0x44 | U8(reg_lmap[reg] << 3); + inst[3] = U8(memw << 6) | U8(reg_lmap[OFFS_REG(mem)] << 3) | reg_lmap[mem & REG_MASK]; + inst[4] = sizeof(sljit_sw); + } else if (type & SLJIT_MEM_STORE) { + EMIT_MOV(compiler, mem, memw, reg, 0); + } else { + EMIT_MOV(compiler, reg, 0, mem, memw); + } + + if (!(mem & OFFS_REG_MASK)) + memw += next; + } + + return SLJIT_SUCCESS; +} + static sljit_s32 emit_mov_int(struct sljit_compiler *compiler, sljit_s32 sign, sljit_s32 dst, sljit_sw dstw, sljit_s32 src, sljit_sw srcw) @@ -850,18 +1092,15 @@ static sljit_s32 emit_mov_int(struct sljit_compiler *compiler, sljit_s32 sign, compiler->mode32 = 0; - if (dst == SLJIT_UNUSED && !(src & SLJIT_MEM)) - return SLJIT_SUCCESS; /* Empty instruction. */ - - if (src & SLJIT_IMM) { + if (src == SLJIT_IMM) { if (FAST_IS_REG(dst)) { - if (sign || ((sljit_uw)srcw <= 0x7fffffff)) { - inst = emit_x86_instruction(compiler, 1, SLJIT_IMM, (sljit_sw)(sljit_s32)srcw, dst, dstw); - FAIL_IF(!inst); - *inst = MOV_rm_i32; - return SLJIT_SUCCESS; - } - return emit_load_imm64(compiler, dst, srcw); + if (!sign || ((sljit_u32)srcw <= 0x7fffffff)) + return emit_do_imm32(compiler, reg_map[dst] <= 7 ? 0 : REX_B, U8(MOV_r_i32 | reg_lmap[dst]), srcw); + + inst = emit_x86_instruction(compiler, 1, SLJIT_IMM, (sljit_sw)(sljit_s32)srcw, dst, dstw); + FAIL_IF(!inst); + *inst = MOV_rm_i32; + return SLJIT_SUCCESS; } compiler->mode32 = 1; inst = emit_x86_instruction(compiler, 1, SLJIT_IMM, (sljit_sw)(sljit_s32)srcw, dst, dstw); @@ -879,10 +1118,10 @@ static sljit_s32 emit_mov_int(struct sljit_compiler *compiler, sljit_s32 sign, if (sign) { inst = emit_x86_instruction(compiler, 1, dst_r, 0, src, srcw); FAIL_IF(!inst); - *inst++ = MOVSXD_r_rm; + *inst = MOVSXD_r_rm; } else { compiler->mode32 = 1; - FAIL_IF(emit_mov(compiler, dst_r, 0, src, srcw)); + EMIT_MOV(compiler, dst_r, 0, src, srcw); compiler->mode32 = 0; } } @@ -898,21 +1137,218 @@ static sljit_s32 emit_mov_int(struct sljit_compiler *compiler, sljit_s32 sign, return SLJIT_SUCCESS; } +static SLJIT_INLINE sljit_s32 sljit_emit_fop1_conv_f64_from_uw(struct sljit_compiler *compiler, sljit_s32 op, + sljit_s32 dst, sljit_sw dstw, + sljit_s32 src, sljit_sw srcw) +{ + sljit_s32 dst_r = FAST_IS_REG(dst) ? dst : TMP_FREG; + sljit_u8 *inst, *jump_inst1, *jump_inst2; + sljit_uw size1, size2; + + compiler->mode32 = 0; + + if (GET_OPCODE(op) == SLJIT_CONV_F64_FROM_U32) { + if (src != SLJIT_IMM) { + compiler->mode32 = 1; + EMIT_MOV(compiler, TMP_REG1, 0, src, srcw); + compiler->mode32 = 0; + } else + FAIL_IF(emit_do_imm32(compiler, reg_map[TMP_REG1] <= 7 ? 0 : REX_B, U8(MOV_r_i32 | reg_lmap[TMP_REG1]), srcw)); + + FAIL_IF(emit_groupf(compiler, CVTSI2SD_x_rm | EX86_SELECT_F2_F3(op) | EX86_SSE2_OP1, dst_r, TMP_REG1, 0)); + + compiler->mode32 = 1; + + if (dst_r == TMP_FREG) + return emit_sse2_store(compiler, op & SLJIT_32, dst, dstw, TMP_FREG); + return SLJIT_SUCCESS; + } + + if (!FAST_IS_REG(src)) { + EMIT_MOV(compiler, TMP_REG1, 0, src, srcw); + src = TMP_REG1; + } + + BINARY_IMM32(CMP, 0, src, 0); + + inst = (sljit_u8*)ensure_buf(compiler, 1 + 2); + FAIL_IF(!inst); + INC_SIZE(2); + inst[0] = JL_i8; + jump_inst1 = inst; + + size1 = compiler->size; + + compiler->mode32 = 0; + FAIL_IF(emit_groupf(compiler, CVTSI2SD_x_rm | EX86_SELECT_F2_F3(op) | EX86_SSE2_OP1, dst_r, src, 0)); + + inst = (sljit_u8*)ensure_buf(compiler, 1 + 2); + FAIL_IF(!inst); + INC_SIZE(2); + inst[0] = JMP_i8; + jump_inst2 = inst; + + size2 = compiler->size; + + jump_inst1[1] = U8(size2 - size1); + + if (src != TMP_REG1) + EMIT_MOV(compiler, TMP_REG1, 0, src, 0); + + EMIT_MOV(compiler, TMP_REG2, 0, src, 0); + + inst = emit_x86_instruction(compiler, 1 | EX86_SHIFT_INS, SLJIT_IMM, 1, TMP_REG1, 0); + FAIL_IF(!inst); + inst[1] |= SHR; + + compiler->mode32 = 1; + BINARY_IMM32(AND, 1, TMP_REG2, 0); + + compiler->mode32 = 0; + inst = emit_x86_instruction(compiler, 1, TMP_REG1, 0, TMP_REG2, 0); + FAIL_IF(!inst); + inst[0] = OR_r_rm; + + FAIL_IF(emit_groupf(compiler, CVTSI2SD_x_rm | EX86_SELECT_F2_F3(op) | EX86_SSE2_OP1, dst_r, TMP_REG1, 0)); + compiler->mode32 = 1; + FAIL_IF(emit_groupf(compiler, ADDSD_x_xm | EX86_SELECT_F2_F3(op) | EX86_SSE2, dst_r, dst_r, 0)); + + jump_inst2[1] = U8(compiler->size - size2); + + if (dst_r == TMP_FREG) + return emit_sse2_store(compiler, op & SLJIT_32, dst, dstw, TMP_FREG); + return SLJIT_SUCCESS; +} + +static sljit_s32 sljit_emit_fset(struct sljit_compiler *compiler, + sljit_s32 freg, sljit_u8 rex, sljit_s32 is_zero) +{ + sljit_u8 *inst; + sljit_u32 size; + + if (is_zero) { + rex = freg_map[freg] >= 8 ? (REX_R | REX_B) : 0; + } else { + if (freg_map[freg] >= 8) + rex |= REX_R; + if (reg_map[TMP_REG1] >= 8) + rex |= REX_B; + } + + size = (rex != 0) ? 5 : 4; + + inst = (sljit_u8*)ensure_buf(compiler, 1 + size); + FAIL_IF(!inst); + INC_SIZE(size); + + *inst++ = GROUP_66; + if (rex != 0) + *inst++ = rex; + inst[0] = GROUP_0F; + + if (is_zero) { + inst[1] = PXOR_x_xm; + inst[2] = U8(freg_lmap[freg] | (freg_lmap[freg] << 3) | MOD_REG); + } else { + inst[1] = MOVD_x_rm; + inst[2] = U8(reg_lmap[TMP_REG1] | (freg_lmap[freg] << 3) | MOD_REG); + } + + return SLJIT_SUCCESS; +} + +SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_fset32(struct sljit_compiler *compiler, + sljit_s32 freg, sljit_f32 value) +{ + union { + sljit_s32 imm; + sljit_f32 value; + } u; + + CHECK_ERROR(); + CHECK(check_sljit_emit_fset32(compiler, freg, value)); + + u.value = value; + + if (u.imm != 0) { + compiler->mode32 = 1; + EMIT_MOV(compiler, TMP_REG1, 0, SLJIT_IMM, u.imm); + } + + return sljit_emit_fset(compiler, freg, 0, u.imm == 0); +} + +SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_fset64(struct sljit_compiler *compiler, + sljit_s32 freg, sljit_f64 value) +{ + union { + sljit_sw imm; + sljit_f64 value; + } u; + + CHECK_ERROR(); + CHECK(check_sljit_emit_fset64(compiler, freg, value)); + + u.value = value; + + if (u.imm != 0) { + compiler->mode32 = 0; + EMIT_MOV(compiler, TMP_REG1, 0, SLJIT_IMM, u.imm); + } + + return sljit_emit_fset(compiler, freg, REX_W, u.imm == 0); +} + +SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_fcopy(struct sljit_compiler *compiler, sljit_s32 op, + sljit_s32 freg, sljit_s32 reg) +{ + sljit_u8 *inst; + sljit_u32 size; + sljit_u8 rex = 0; + + CHECK_ERROR(); + CHECK(check_sljit_emit_fcopy(compiler, op, freg, reg)); + + if (!(op & SLJIT_32)) + rex = REX_W; + + if (freg_map[freg] >= 8) + rex |= REX_R; + + if (reg_map[reg] >= 8) + rex |= REX_B; + + size = (rex != 0) ? 5 : 4; + + inst = (sljit_u8*)ensure_buf(compiler, 1 + size); + FAIL_IF(!inst); + INC_SIZE(size); + + *inst++ = GROUP_66; + if (rex != 0) + *inst++ = rex; + inst[0] = GROUP_0F; + inst[1] = GET_OPCODE(op) == SLJIT_COPY_TO_F64 ? MOVD_x_rm : MOVD_rm_x; + inst[2] = U8(reg_lmap[reg] | (freg_lmap[freg] << 3) | MOD_REG); + + return SLJIT_SUCCESS; +} + static sljit_s32 skip_frames_before_return(struct sljit_compiler *compiler) { sljit_s32 tmp, size; /* Don't adjust shadow stack if it isn't enabled. */ - if (!cpu_has_shadow_stack ()) + if (!cpu_has_shadow_stack()) return SLJIT_SUCCESS; size = compiler->local_size; tmp = compiler->scratches; if (tmp >= SLJIT_FIRST_SAVED_REG) - size += (tmp - SLJIT_FIRST_SAVED_REG + 1) * sizeof(sljit_uw); + size += (tmp - SLJIT_FIRST_SAVED_REG + 1) * SSIZE_OF(sw); tmp = compiler->saveds < SLJIT_NUMBER_OF_SAVED_REGISTERS ? (SLJIT_S0 + 1 - compiler->saveds) : SLJIT_FIRST_SAVED_REG; if (SLJIT_S0 >= tmp) - size += (SLJIT_S0 - tmp + 1) * sizeof(sljit_uw); + size += (SLJIT_S0 - tmp + 1) * SSIZE_OF(sw); - return adjust_shadow_stack(compiler, SLJIT_UNUSED, 0, SLJIT_SP, size); + return adjust_shadow_stack(compiler, SLJIT_MEM1(SLJIT_SP), size); } |