diff options
Diffstat (limited to 'JavaScriptCore/masm')
| -rw-r--r-- | JavaScriptCore/masm/X86Assembler.h | 1262 |
1 files changed, 0 insertions, 1262 deletions
diff --git a/JavaScriptCore/masm/X86Assembler.h b/JavaScriptCore/masm/X86Assembler.h deleted file mode 100644 index 547c94e..0000000 --- a/JavaScriptCore/masm/X86Assembler.h +++ /dev/null @@ -1,1262 +0,0 @@ -/* - * Copyright (C) 2008 Apple Inc. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY - * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR - * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR - * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, - * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR - * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY - * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ - -#ifndef X86Assembler_h -#define X86Assembler_h - -#if ENABLE(MASM) && PLATFORM(X86) - -#include <wtf/Assertions.h> -#include <wtf/AlwaysInline.h> -#include <wtf/FastMalloc.h> - -#if HAVE(MMAN) -#include <sys/mman.h> -#endif - -#include <string.h> - -namespace JSC { - -class JITCodeBuffer { -public: - JITCodeBuffer(int size) - : m_buffer(static_cast<char*>(fastMalloc(size))) - , m_size(size) - , m_index(0) - { - } - - ~JITCodeBuffer() - { - fastFree(m_buffer); - } - - void ensureSpace(int space) - { - if (m_index > m_size - space) - growBuffer(); - } - - void putByteUnchecked(int value) - { - m_buffer[m_index] = value; - m_index++; - } - - void putByte(int value) - { - if (m_index > m_size - 4) - growBuffer(); - putByteUnchecked(value); - } - - void putShortUnchecked(int value) - { - *(short*)(&m_buffer[m_index]) = value; - m_index += 2; - } - - void putShort(int value) - { - if (m_index > m_size - 4) - growBuffer(); - putShortUnchecked(value); - } - - void putIntUnchecked(int value) - { - *reinterpret_cast<int*>(&m_buffer[m_index]) = value; - m_index += 4; - } - - void putInt(int value) - { - if (m_index > m_size - 4) - growBuffer(); - putIntUnchecked(value); - } - - void* getEIP() - { - return m_buffer + m_index; - } - - void* start() - { - return m_buffer; - } - - int getOffset() - { - return m_index; - } - - JITCodeBuffer* reset() - { - m_index = 0; - return this; - } - - void* copy() - { - if (!m_index) - return 0; - - void* result = WTF::fastMallocExecutable(m_index); - - if (!result) - return 0; - - return memcpy(result, m_buffer, m_index); - } - -private: - void growBuffer() - { - m_size += m_size / 2; - m_buffer = static_cast<char*>(fastRealloc(m_buffer, m_size)); - } - - char* m_buffer; - int m_size; - int m_index; -}; - -#define MODRM(type, reg, rm) ((type << 6) | (reg << 3) | (rm)) -#define SIB(type, reg, rm) MODRM(type, reg, rm) -#define CAN_SIGN_EXTEND_8_32(value) (value == ((int)(signed char)value)) - -namespace X86 { - typedef enum { - eax, - ecx, - edx, - ebx, - esp, - ebp, - esi, - edi, - - noBase = ebp, - hasSib = esp, - noScale = esp, - } RegisterID; - - typedef enum { - xmm0, - xmm1, - xmm2, - xmm3, - xmm4, - xmm5, - xmm6, - xmm7, - } XMMRegisterID; -} - -class X86Assembler { -public: - typedef X86::RegisterID RegisterID; - typedef X86::XMMRegisterID XMMRegisterID; - typedef enum { - OP_ADD_EvGv = 0x01, - OP_ADD_GvEv = 0x03, - OP_OR_EvGv = 0x09, - OP_OR_GvEv = 0x0B, - OP_2BYTE_ESCAPE = 0x0F, - OP_AND_EvGv = 0x21, - OP_SUB_EvGv = 0x29, - OP_SUB_GvEv = 0x2B, - PRE_PREDICT_BRANCH_NOT_TAKEN = 0x2E, - OP_XOR_EvGv = 0x31, - OP_CMP_EvGv = 0x39, - OP_CMP_GvEv = 0x3B, - OP_PUSH_EAX = 0x50, - OP_POP_EAX = 0x58, - PRE_OPERAND_SIZE = 0x66, - PRE_SSE_66 = 0x66, - OP_PUSH_Iz = 0x68, - OP_IMUL_GvEvIz = 0x69, - OP_GROUP1_EvIz = 0x81, - OP_GROUP1_EvIb = 0x83, - OP_TEST_EvGv = 0x85, - OP_MOV_EvGv = 0x89, - OP_MOV_GvEv = 0x8B, - OP_LEA = 0x8D, - OP_GROUP1A_Ev = 0x8F, - OP_CDQ = 0x99, - OP_SETE = 0x94, - OP_SETNE = 0x95, - OP_GROUP2_EvIb = 0xC1, - OP_RET = 0xC3, - OP_GROUP11_EvIz = 0xC7, - OP_INT3 = 0xCC, - OP_GROUP2_Ev1 = 0xD1, - OP_GROUP2_EvCL = 0xD3, - OP_CALL_rel32 = 0xE8, - OP_JMP_rel32 = 0xE9, - PRE_SSE_F2 = 0xF2, - OP_GROUP3_Ev = 0xF7, - OP_GROUP3_EvIz = 0xF7, // OP_GROUP3_Ev has an immediate, when instruction is a test. - OP_GROUP5_Ev = 0xFF, - - OP2_MOVSD_VsdWsd = 0x10, - OP2_MOVSD_WsdVsd = 0x11, - OP2_CVTSI2SD_VsdEd = 0x2A, - OP2_CVTTSD2SI_GdWsd = 0x2C, - OP2_UCOMISD_VsdWsd = 0x2E, - OP2_XORPD_VsdWsd = 0x57, - OP2_ADDSD_VsdWsd = 0x58, - OP2_MULSD_VsdWsd = 0x59, - OP2_SUBSD_VsdWsd = 0x5C, - OP2_MOVD_EdVd = 0x7E, - OP2_JO_rel32 = 0x80, - OP2_JB_rel32 = 0x82, - OP2_JAE_rel32 = 0x83, - OP2_JE_rel32 = 0x84, - OP2_JNE_rel32 = 0x85, - OP2_JBE_rel32 = 0x86, - OP2_JA_rel32 = 0x87, - OP2_JS_rel32 = 0x88, - OP2_JP_rel32 = 0x8A, - OP2_JL_rel32 = 0x8C, - OP2_JGE_rel32 = 0x8D, - OP2_JLE_rel32 = 0x8E, - OP2_JG_rel32 = 0x8F, - OP2_IMUL_GvEv = 0xAF, - OP2_MOVZX_GvEb = 0xB6, - OP2_MOVZX_GvEw = 0xB7, - OP2_PEXTRW_GdUdIb = 0xC5, - - GROUP1_OP_ADD = 0, - GROUP1_OP_OR = 1, - GROUP1_OP_AND = 4, - GROUP1_OP_SUB = 5, - GROUP1_OP_XOR = 6, - GROUP1_OP_CMP = 7, - - GROUP1A_OP_POP = 0, - - GROUP2_OP_SHL = 4, - GROUP2_OP_SAR = 7, - - GROUP3_OP_TEST = 0, - GROUP3_OP_NEG = 3, - GROUP3_OP_IDIV = 7, - - GROUP5_OP_CALLN = 2, - GROUP5_OP_JMPN = 4, - GROUP5_OP_PUSH = 6, - - GROUP11_MOV = 0, - } OpcodeID; - - static const int MAX_INSTRUCTION_SIZE = 16; - - X86Assembler(JITCodeBuffer* m_buffer) - : m_buffer(m_buffer) - { - m_buffer->reset(); - } - - void emitInt3() - { - m_buffer->putByte(OP_INT3); - } - - void pushl_r(RegisterID reg) - { - m_buffer->putByte(OP_PUSH_EAX + reg); - } - - void pushl_m(int offset, RegisterID base) - { - m_buffer->putByte(OP_GROUP5_Ev); - emitModRm_opm(GROUP5_OP_PUSH, base, offset); - } - - void pushl_i32(int imm) - { - m_buffer->putByte(OP_PUSH_Iz); - m_buffer->putInt(imm); - } - - void popl_r(RegisterID reg) - { - m_buffer->putByte(OP_POP_EAX + reg); - } - - void popl_m(int offset, RegisterID base) - { - m_buffer->putByte(OP_GROUP1A_Ev); - emitModRm_opm(GROUP1A_OP_POP, base, offset); - } - - void movl_rr(RegisterID src, RegisterID dst) - { - m_buffer->putByte(OP_MOV_EvGv); - emitModRm_rr(src, dst); - } - - void addl_rr(RegisterID src, RegisterID dst) - { - m_buffer->putByte(OP_ADD_EvGv); - emitModRm_rr(src, dst); - } - - void addl_i8r(int imm, RegisterID dst) - { - m_buffer->putByte(OP_GROUP1_EvIb); - emitModRm_opr(GROUP1_OP_ADD, dst); - m_buffer->putByte(imm); - } - - void addl_i8m(int imm, void* addr) - { - m_buffer->putByte(OP_GROUP1_EvIb); - emitModRm_opm(GROUP1_OP_ADD, addr); - m_buffer->putByte(imm); - } - - void addl_i32r(int imm, RegisterID dst) - { - m_buffer->putByte(OP_GROUP1_EvIz); - emitModRm_opr(GROUP1_OP_ADD, dst); - m_buffer->putInt(imm); - } - - void addl_mr(int offset, RegisterID base, RegisterID dst) - { - m_buffer->putByte(OP_ADD_GvEv); - emitModRm_rm(dst, base, offset); - } - - void andl_rr(RegisterID src, RegisterID dst) - { - m_buffer->putByte(OP_AND_EvGv); - emitModRm_rr(src, dst); - } - - void andl_i32r(int imm, RegisterID dst) - { - m_buffer->putByte(OP_GROUP1_EvIz); - emitModRm_opr(GROUP1_OP_AND, dst); - m_buffer->putInt(imm); - } - - void cmpl_i8r(int imm, RegisterID dst) - { - m_buffer->putByte(OP_GROUP1_EvIb); - emitModRm_opr(GROUP1_OP_CMP, dst); - m_buffer->putByte(imm); - } - - void cmpl_rr(RegisterID src, RegisterID dst) - { - m_buffer->putByte(OP_CMP_EvGv); - emitModRm_rr(src, dst); - } - - void cmpl_rm(RegisterID src, int offset, RegisterID base) - { - m_buffer->putByte(OP_CMP_EvGv); - emitModRm_rm(src, base, offset); - } - - void cmpl_mr(int offset, RegisterID base, RegisterID dst) - { - m_buffer->putByte(OP_CMP_GvEv); - emitModRm_rm(dst, base, offset); - } - - void cmpl_i32r(int imm, RegisterID dst) - { - m_buffer->putByte(OP_GROUP1_EvIz); - emitModRm_opr(GROUP1_OP_CMP, dst); - m_buffer->putInt(imm); - } - - void cmpl_i32m(int imm, RegisterID dst) - { - m_buffer->putByte(OP_GROUP1_EvIz); - emitModRm_opm(GROUP1_OP_CMP, dst); - m_buffer->putInt(imm); - } - - void cmpl_i32m(int imm, int offset, RegisterID dst) - { - m_buffer->putByte(OP_GROUP1_EvIz); - emitModRm_opm(GROUP1_OP_CMP, dst, offset); - m_buffer->putInt(imm); - } - - void cmpl_i32m(int imm, void* addr) - { - m_buffer->putByte(OP_GROUP1_EvIz); - emitModRm_opm(GROUP1_OP_CMP, addr); - m_buffer->putInt(imm); - } - - void cmpl_i8m(int imm, int offset, RegisterID base, RegisterID index, int scale) - { - m_buffer->putByte(OP_GROUP1_EvIb); - emitModRm_opmsib(GROUP1_OP_CMP, base, index, scale, offset); - m_buffer->putByte(imm); - } - - void cmpw_rm(RegisterID src, RegisterID base, RegisterID index, int scale) - { - m_buffer->putByte(PRE_OPERAND_SIZE); - m_buffer->putByte(OP_CMP_EvGv); - emitModRm_rmsib(src, base, index, scale); - } - - void sete_r(RegisterID dst) - { - m_buffer->putByte(OP_2BYTE_ESCAPE); - m_buffer->putByte(OP_SETE); - m_buffer->putByte(MODRM(3, 0, dst)); - } - - void setz_r(RegisterID dst) - { - sete_r(dst); - } - - void setne_r(RegisterID dst) - { - m_buffer->putByte(OP_2BYTE_ESCAPE); - m_buffer->putByte(OP_SETNE); - m_buffer->putByte(MODRM(3, 0, dst)); - } - - void setnz_r(RegisterID dst) - { - setne_r(dst); - } - - void orl_rr(RegisterID src, RegisterID dst) - { - m_buffer->putByte(OP_OR_EvGv); - emitModRm_rr(src, dst); - } - - void orl_mr(int offset, RegisterID base, RegisterID dst) - { - m_buffer->putByte(OP_OR_GvEv); - emitModRm_rm(dst, base, offset); - } - - void orl_i32r(int imm, RegisterID dst) - { - m_buffer->putByte(OP_GROUP1_EvIb); - emitModRm_opr(GROUP1_OP_OR, dst); - m_buffer->putByte(imm); - } - - void subl_rr(RegisterID src, RegisterID dst) - { - m_buffer->putByte(OP_SUB_EvGv); - emitModRm_rr(src, dst); - } - - void subl_i8r(int imm, RegisterID dst) - { - m_buffer->putByte(OP_GROUP1_EvIb); - emitModRm_opr(GROUP1_OP_SUB, dst); - m_buffer->putByte(imm); - } - - void subl_i8m(int imm, void* addr) - { - m_buffer->putByte(OP_GROUP1_EvIb); - emitModRm_opm(GROUP1_OP_SUB, addr); - m_buffer->putByte(imm); - } - - void subl_i32r(int imm, RegisterID dst) - { - m_buffer->putByte(OP_GROUP1_EvIz); - emitModRm_opr(GROUP1_OP_SUB, dst); - m_buffer->putInt(imm); - } - - void subl_mr(int offset, RegisterID base, RegisterID dst) - { - m_buffer->putByte(OP_SUB_GvEv); - emitModRm_rm(dst, base, offset); - } - - void testl_i32r(int imm, RegisterID dst) - { - m_buffer->ensureSpace(MAX_INSTRUCTION_SIZE); - m_buffer->putByteUnchecked(OP_GROUP3_EvIz); - emitModRm_opr_Unchecked(GROUP3_OP_TEST, dst); - m_buffer->putIntUnchecked(imm); - } - - void testl_i32m(int imm, RegisterID dst) - { - m_buffer->putByte(OP_GROUP3_EvIz); - emitModRm_opm(GROUP3_OP_TEST, dst); - m_buffer->putInt(imm); - } - - void testl_i32m(int imm, int offset, RegisterID dst) - { - m_buffer->putByte(OP_GROUP3_EvIz); - emitModRm_opm(GROUP3_OP_TEST, dst, offset); - m_buffer->putInt(imm); - } - - void testl_rr(RegisterID src, RegisterID dst) - { - m_buffer->putByte(OP_TEST_EvGv); - emitModRm_rr(src, dst); - } - - void xorl_i8r(int imm, RegisterID dst) - { - m_buffer->putByte(OP_GROUP1_EvIb); - emitModRm_opr(GROUP1_OP_XOR, dst); - m_buffer->putByte(imm); - } - - void xorl_rr(RegisterID src, RegisterID dst) - { - m_buffer->putByte(OP_XOR_EvGv); - emitModRm_rr(src, dst); - } - - void sarl_i8r(int imm, RegisterID dst) - { - if (imm == 1) { - m_buffer->putByte(OP_GROUP2_Ev1); - emitModRm_opr(GROUP2_OP_SAR, dst); - } else { - m_buffer->putByte(OP_GROUP2_EvIb); - emitModRm_opr(GROUP2_OP_SAR, dst); - m_buffer->putByte(imm); - } - } - - void sarl_CLr(RegisterID dst) - { - m_buffer->putByte(OP_GROUP2_EvCL); - emitModRm_opr(GROUP2_OP_SAR, dst); - } - - void shl_i8r(int imm, RegisterID dst) - { - if (imm == 1) { - m_buffer->putByte(OP_GROUP2_Ev1); - emitModRm_opr(GROUP2_OP_SHL, dst); - } else { - m_buffer->putByte(OP_GROUP2_EvIb); - emitModRm_opr(GROUP2_OP_SHL, dst); - m_buffer->putByte(imm); - } - } - - void shll_CLr(RegisterID dst) - { - m_buffer->putByte(OP_GROUP2_EvCL); - emitModRm_opr(GROUP2_OP_SHL, dst); - } - - void imull_rr(RegisterID src, RegisterID dst) - { - m_buffer->putByte(OP_2BYTE_ESCAPE); - m_buffer->putByte(OP2_IMUL_GvEv); - emitModRm_rr(dst, src); - } - - void imull_i32r(RegisterID src, int32_t value, RegisterID dst) - { - m_buffer->putByte(OP_IMUL_GvEvIz); - emitModRm_rr(dst, src); - m_buffer->putInt(value); - } - - void idivl_r(RegisterID dst) - { - m_buffer->putByte(OP_GROUP3_Ev); - emitModRm_opr(GROUP3_OP_IDIV, dst); - } - - void negl_r(RegisterID dst) - { - m_buffer->putByte(OP_GROUP3_Ev); - emitModRm_opr(GROUP3_OP_NEG, dst); - } - - void cdq() - { - m_buffer->putByte(OP_CDQ); - } - - void movl_mr(RegisterID base, RegisterID dst) - { - m_buffer->putByte(OP_MOV_GvEv); - emitModRm_rm(dst, base); - } - - void movl_mr(int offset, RegisterID base, RegisterID dst) - { - m_buffer->ensureSpace(MAX_INSTRUCTION_SIZE); - m_buffer->putByteUnchecked(OP_MOV_GvEv); - emitModRm_rm_Unchecked(dst, base, offset); - } - - void movl_mr(void* addr, RegisterID dst) - { - m_buffer->putByte(OP_MOV_GvEv); - emitModRm_rm(dst, addr); - } - - void movl_mr(int offset, RegisterID base, RegisterID index, int scale, RegisterID dst) - { - m_buffer->putByte(OP_MOV_GvEv); - emitModRm_rmsib(dst, base, index, scale, offset); - } - - void movzbl_rr(RegisterID src, RegisterID dst) - { - m_buffer->putByte(OP_2BYTE_ESCAPE); - m_buffer->putByte(OP2_MOVZX_GvEb); - emitModRm_rr(dst, src); - } - - void movzwl_mr(int offset, RegisterID base, RegisterID dst) - { - m_buffer->putByte(OP_2BYTE_ESCAPE); - m_buffer->putByte(OP2_MOVZX_GvEw); - emitModRm_rm(dst, base, offset); - } - - void movzwl_mr(RegisterID base, RegisterID index, int scale, RegisterID dst) - { - m_buffer->putByte(OP_2BYTE_ESCAPE); - m_buffer->putByte(OP2_MOVZX_GvEw); - emitModRm_rmsib(dst, base, index, scale); - } - - void movzwl_mr(int offset, RegisterID base, RegisterID index, int scale, RegisterID dst) - { - m_buffer->putByte(OP_2BYTE_ESCAPE); - m_buffer->putByte(OP2_MOVZX_GvEw); - emitModRm_rmsib(dst, base, index, scale, offset); - } - - void movl_rm(RegisterID src, RegisterID base) - { - m_buffer->putByte(OP_MOV_EvGv); - emitModRm_rm(src, base); - } - - void movl_rm(RegisterID src, int offset, RegisterID base) - { - m_buffer->ensureSpace(MAX_INSTRUCTION_SIZE); - m_buffer->putByteUnchecked(OP_MOV_EvGv); - emitModRm_rm_Unchecked(src, base, offset); - } - - void movl_rm(RegisterID src, int offset, RegisterID base, RegisterID index, int scale) - { - m_buffer->putByte(OP_MOV_EvGv); - emitModRm_rmsib(src, base, index, scale, offset); - } - - void movl_i32r(int imm, RegisterID dst) - { - m_buffer->putByte(OP_GROUP11_EvIz); - emitModRm_opr(GROUP11_MOV, dst); - m_buffer->putInt(imm); - } - - void movl_i32m(int imm, int offset, RegisterID base) - { - m_buffer->ensureSpace(MAX_INSTRUCTION_SIZE); - m_buffer->putByteUnchecked(OP_GROUP11_EvIz); - emitModRm_opm_Unchecked(GROUP11_MOV, base, offset); - m_buffer->putIntUnchecked(imm); - } - - void movl_i32m(int imm, void* addr) - { - m_buffer->putByte(OP_GROUP11_EvIz); - emitModRm_opm(GROUP11_MOV, addr); - m_buffer->putInt(imm); - } - - void leal_mr(int offset, RegisterID base, RegisterID dst) - { - m_buffer->putByte(OP_LEA); - emitModRm_rm(dst, base, offset); - } - - void leal_mr(int offset, RegisterID index, int scale, RegisterID dst) - { - m_buffer->putByte(OP_LEA); - emitModRm_rmsib(dst, X86::noBase, index, scale, offset); - } - - void ret() - { - m_buffer->putByte(OP_RET); - } - - void jmp_r(RegisterID dst) - { - m_buffer->putByte(OP_GROUP5_Ev); - emitModRm_opr(GROUP5_OP_JMPN, dst); - } - - void jmp_m(int offset, RegisterID base) - { - m_buffer->putByte(OP_GROUP5_Ev); - emitModRm_opm(GROUP5_OP_JMPN, base, offset); - } - - void movsd_mr(int offset, RegisterID base, XMMRegisterID dst) - { - m_buffer->putByte(PRE_SSE_F2); - m_buffer->putByte(OP_2BYTE_ESCAPE); - m_buffer->putByte(OP2_MOVSD_VsdWsd); - emitModRm_rm((RegisterID)dst, base, offset); - } - - void xorpd_mr(void* addr, XMMRegisterID dst) - { - m_buffer->putByte(PRE_SSE_66); - m_buffer->putByte(OP_2BYTE_ESCAPE); - m_buffer->putByte(OP2_XORPD_VsdWsd); - emitModRm_rm((RegisterID)dst, addr); - } - - void movsd_rm(XMMRegisterID src, int offset, RegisterID base) - { - m_buffer->putByte(PRE_SSE_F2); - m_buffer->putByte(OP_2BYTE_ESCAPE); - m_buffer->putByte(OP2_MOVSD_WsdVsd); - emitModRm_rm((RegisterID)src, base, offset); - } - - void movd_rr(XMMRegisterID src, RegisterID dst) - { - m_buffer->putByte(PRE_SSE_66); - m_buffer->putByte(OP_2BYTE_ESCAPE); - m_buffer->putByte(OP2_MOVD_EdVd); - emitModRm_rr((RegisterID)src, dst); - } - - void cvtsi2sd_rr(RegisterID src, XMMRegisterID dst) - { - m_buffer->putByte(PRE_SSE_F2); - m_buffer->putByte(OP_2BYTE_ESCAPE); - m_buffer->putByte(OP2_CVTSI2SD_VsdEd); - emitModRm_rr((RegisterID)dst, src); - } - - void cvttsd2si_rr(XMMRegisterID src, RegisterID dst) - { - m_buffer->putByte(PRE_SSE_F2); - m_buffer->putByte(OP_2BYTE_ESCAPE); - m_buffer->putByte(OP2_CVTTSD2SI_GdWsd); - emitModRm_rr(dst, (RegisterID)src); - } - - void addsd_mr(int offset, RegisterID base, XMMRegisterID dst) - { - m_buffer->putByte(PRE_SSE_F2); - m_buffer->putByte(OP_2BYTE_ESCAPE); - m_buffer->putByte(OP2_ADDSD_VsdWsd); - emitModRm_rm((RegisterID)dst, base, offset); - } - - void subsd_mr(int offset, RegisterID base, XMMRegisterID dst) - { - m_buffer->putByte(PRE_SSE_F2); - m_buffer->putByte(OP_2BYTE_ESCAPE); - m_buffer->putByte(OP2_SUBSD_VsdWsd); - emitModRm_rm((RegisterID)dst, base, offset); - } - - void mulsd_mr(int offset, RegisterID base, XMMRegisterID dst) - { - m_buffer->putByte(PRE_SSE_F2); - m_buffer->putByte(OP_2BYTE_ESCAPE); - m_buffer->putByte(OP2_MULSD_VsdWsd); - emitModRm_rm((RegisterID)dst, base, offset); - } - - void addsd_rr(XMMRegisterID src, XMMRegisterID dst) - { - m_buffer->putByte(PRE_SSE_F2); - m_buffer->putByte(OP_2BYTE_ESCAPE); - m_buffer->putByte(OP2_ADDSD_VsdWsd); - emitModRm_rr((RegisterID)dst, (RegisterID)src); - } - - void subsd_rr(XMMRegisterID src, XMMRegisterID dst) - { - m_buffer->putByte(PRE_SSE_F2); - m_buffer->putByte(OP_2BYTE_ESCAPE); - m_buffer->putByte(OP2_SUBSD_VsdWsd); - emitModRm_rr((RegisterID)dst, (RegisterID)src); - } - - void mulsd_rr(XMMRegisterID src, XMMRegisterID dst) - { - m_buffer->putByte(PRE_SSE_F2); - m_buffer->putByte(OP_2BYTE_ESCAPE); - m_buffer->putByte(OP2_MULSD_VsdWsd); - emitModRm_rr((RegisterID)dst, (RegisterID)src); - } - - void ucomis_rr(XMMRegisterID src, XMMRegisterID dst) - { - m_buffer->putByte(PRE_SSE_66); - m_buffer->putByte(OP_2BYTE_ESCAPE); - m_buffer->putByte(OP2_UCOMISD_VsdWsd); - emitModRm_rr((RegisterID)dst, (RegisterID)src); - } - - void pextrw_irr(int whichWord, XMMRegisterID src, RegisterID dst) - { - m_buffer->putByte(PRE_SSE_66); - m_buffer->putByte(OP_2BYTE_ESCAPE); - m_buffer->putByte(OP2_PEXTRW_GdUdIb); - emitModRm_rr(dst, (RegisterID)src); - m_buffer->putByte(whichWord); - } - - // Opaque label types - - class JmpSrc { - friend class X86Assembler; - public: - JmpSrc() - : m_offset(-1) - { - } - - private: - JmpSrc(int offset) - : m_offset(offset) - { - } - - int m_offset; - }; - - class JmpDst { - friend class X86Assembler; - public: - JmpDst() - : m_offset(-1) - { - } - - private: - JmpDst(int offset) - : m_offset(offset) - { - } - - int m_offset; - }; - - // FIXME: make this point to a global label, linked later. - JmpSrc emitCall() - { - m_buffer->putByte(OP_CALL_rel32); - m_buffer->putInt(0); - return JmpSrc(m_buffer->getOffset()); - } - - JmpSrc emitCall(RegisterID dst) - { - m_buffer->putByte(OP_GROUP5_Ev); - emitModRm_opr(GROUP5_OP_CALLN, dst); - return JmpSrc(m_buffer->getOffset()); - } - - JmpDst label() - { - return JmpDst(m_buffer->getOffset()); - } - - JmpSrc emitUnlinkedJmp() - { - m_buffer->putByte(OP_JMP_rel32); - m_buffer->putInt(0); - return JmpSrc(m_buffer->getOffset()); - } - - JmpSrc emitUnlinkedJne() - { - m_buffer->putByte(OP_2BYTE_ESCAPE); - m_buffer->putByte(OP2_JNE_rel32); - m_buffer->putInt(0); - return JmpSrc(m_buffer->getOffset()); - } - - JmpSrc emitUnlinkedJnz() - { - return emitUnlinkedJne(); - } - - JmpSrc emitUnlinkedJe() - { - m_buffer->ensureSpace(MAX_INSTRUCTION_SIZE); - m_buffer->putByteUnchecked(OP_2BYTE_ESCAPE); - m_buffer->putByteUnchecked(OP2_JE_rel32); - m_buffer->putIntUnchecked(0); - return JmpSrc(m_buffer->getOffset()); - } - - JmpSrc emitUnlinkedJl() - { - m_buffer->putByte(OP_2BYTE_ESCAPE); - m_buffer->putByte(OP2_JL_rel32); - m_buffer->putInt(0); - return JmpSrc(m_buffer->getOffset()); - } - - JmpSrc emitUnlinkedJb() - { - m_buffer->putByte(OP_2BYTE_ESCAPE); - m_buffer->putByte(OP2_JB_rel32); - m_buffer->putInt(0); - return JmpSrc(m_buffer->getOffset()); - } - - JmpSrc emitUnlinkedJle() - { - m_buffer->putByte(OP_2BYTE_ESCAPE); - m_buffer->putByte(OP2_JLE_rel32); - m_buffer->putInt(0); - return JmpSrc(m_buffer->getOffset()); - } - - JmpSrc emitUnlinkedJbe() - { - m_buffer->putByte(OP_2BYTE_ESCAPE); - m_buffer->putByte(OP2_JBE_rel32); - m_buffer->putInt(0); - return JmpSrc(m_buffer->getOffset()); - } - - JmpSrc emitUnlinkedJge() - { - m_buffer->putByte(OP_2BYTE_ESCAPE); - m_buffer->putByte(OP2_JGE_rel32); - m_buffer->putInt(0); - return JmpSrc(m_buffer->getOffset()); - } - - JmpSrc emitUnlinkedJg() - { - m_buffer->putByte(OP_2BYTE_ESCAPE); - m_buffer->putByte(OP2_JG_rel32); - m_buffer->putInt(0); - return JmpSrc(m_buffer->getOffset()); - } - - JmpSrc emitUnlinkedJa() - { - m_buffer->putByte(OP_2BYTE_ESCAPE); - m_buffer->putByte(OP2_JA_rel32); - m_buffer->putInt(0); - return JmpSrc(m_buffer->getOffset()); - } - - JmpSrc emitUnlinkedJae() - { - m_buffer->putByte(OP_2BYTE_ESCAPE); - m_buffer->putByte(OP2_JAE_rel32); - m_buffer->putInt(0); - return JmpSrc(m_buffer->getOffset()); - } - - JmpSrc emitUnlinkedJo() - { - m_buffer->putByte(OP_2BYTE_ESCAPE); - m_buffer->putByte(OP2_JO_rel32); - m_buffer->putInt(0); - return JmpSrc(m_buffer->getOffset()); - } - - JmpSrc emitUnlinkedJp() - { - m_buffer->putByte(OP_2BYTE_ESCAPE); - m_buffer->putByte(OP2_JP_rel32); - m_buffer->putInt(0); - return JmpSrc(m_buffer->getOffset()); - } - - JmpSrc emitUnlinkedJs() - { - m_buffer->putByte(OP_2BYTE_ESCAPE); - m_buffer->putByte(OP2_JS_rel32); - m_buffer->putInt(0); - return JmpSrc(m_buffer->getOffset()); - } - - void emitPredictionNotTaken() - { - m_buffer->putByte(PRE_PREDICT_BRANCH_NOT_TAKEN); - } - - void link(JmpSrc from, JmpDst to) - { - ASSERT(to.m_offset != -1); - ASSERT(from.m_offset != -1); - - reinterpret_cast<int*>(reinterpret_cast<ptrdiff_t>(m_buffer->start()) + from.m_offset)[-1] = to.m_offset - from.m_offset; - } - - static void linkAbsoluteAddress(void* code, JmpDst useOffset, JmpDst address) - { - ASSERT(useOffset.m_offset != -1); - ASSERT(address.m_offset != -1); - - reinterpret_cast<int*>(reinterpret_cast<ptrdiff_t>(code) + useOffset.m_offset)[-1] = reinterpret_cast<ptrdiff_t>(code) + address.m_offset; - } - - static void link(void* code, JmpSrc from, void* to) - { - ASSERT(from.m_offset != -1); - - reinterpret_cast<int*>(reinterpret_cast<ptrdiff_t>(code) + from.m_offset)[-1] = reinterpret_cast<ptrdiff_t>(to) - (reinterpret_cast<ptrdiff_t>(code) + from.m_offset); - } - - static void* getRelocatedAddress(void* code, JmpSrc jump) - { - return reinterpret_cast<void*>(reinterpret_cast<ptrdiff_t>(code) + jump.m_offset); - } - - static void* getRelocatedAddress(void* code, JmpDst jump) - { - return reinterpret_cast<void*>(reinterpret_cast<ptrdiff_t>(code) + jump.m_offset); - } - - static int getDifferenceBetweenLabels(JmpDst src, JmpDst dst) - { - return dst.m_offset - src.m_offset; - } - - static int getDifferenceBetweenLabels(JmpDst src, JmpSrc dst) - { - return dst.m_offset - src.m_offset; - } - - static int getDifferenceBetweenLabels(JmpSrc src, JmpDst dst) - { - return dst.m_offset - src.m_offset; - } - - static void repatchImmediate(intptr_t where, int32_t value) - { - reinterpret_cast<int32_t*>(where)[-1] = value; - } - - static void repatchDisplacement(intptr_t where, intptr_t value) - { - reinterpret_cast<intptr_t*>(where)[-1] = value; - } - - static void repatchBranchOffset(intptr_t where, void* destination) - { - reinterpret_cast<intptr_t*>(where)[-1] = (reinterpret_cast<intptr_t>(destination) - where); - } - - void* copy() - { - return m_buffer->copy(); - } - -#if COMPILER(MSVC) - void emitConvertToFastCall() - { - movl_mr(4, X86::esp, X86::eax); - movl_mr(8, X86::esp, X86::edx); - movl_mr(12, X86::esp, X86::ecx); - } -#else - void emitConvertToFastCall() {} -#endif - -#if USE(CTI_ARGUMENT) - void emitRestoreArgumentReference() - { -#if USE(FAST_CALL_CTI_ARGUMENT) - movl_rr(X86::esp, X86::ecx); -#else - movl_rm(X86::esp, 0, X86::esp); -#endif - } - - void emitRestoreArgumentReferenceForTrampoline() - { -#if USE(FAST_CALL_CTI_ARGUMENT) - movl_rr(X86::esp, X86::ecx); - addl_i32r(4, X86::ecx); -#endif - } -#else - void emitRestoreArgumentReference() {} - void emitRestoreArgumentReferenceForTrampoline() {} -#endif - -private: - void emitModRm_rr(RegisterID reg, RegisterID rm) - { - m_buffer->ensureSpace(MAX_INSTRUCTION_SIZE); - emitModRm_rr_Unchecked(reg, rm); - } - - void emitModRm_rr_Unchecked(RegisterID reg, RegisterID rm) - { - m_buffer->putByteUnchecked(MODRM(3, reg, rm)); - } - - void emitModRm_rm(RegisterID reg, void* addr) - { - m_buffer->putByte(MODRM(0, reg, X86::noBase)); - m_buffer->putInt((int)addr); - } - - void emitModRm_rm(RegisterID reg, RegisterID base) - { - if (base == X86::esp) { - m_buffer->putByte(MODRM(0, reg, X86::hasSib)); - m_buffer->putByte(SIB(0, X86::noScale, X86::esp)); - } else - m_buffer->putByte(MODRM(0, reg, base)); - } - - void emitModRm_rm_Unchecked(RegisterID reg, RegisterID base, int offset) - { - if (base == X86::esp) { - if (CAN_SIGN_EXTEND_8_32(offset)) { - m_buffer->putByteUnchecked(MODRM(1, reg, X86::hasSib)); - m_buffer->putByteUnchecked(SIB(0, X86::noScale, X86::esp)); - m_buffer->putByteUnchecked(offset); - } else { - m_buffer->putByteUnchecked(MODRM(2, reg, X86::hasSib)); - m_buffer->putByteUnchecked(SIB(0, X86::noScale, X86::esp)); - m_buffer->putIntUnchecked(offset); - } - } else { - if (CAN_SIGN_EXTEND_8_32(offset)) { - m_buffer->putByteUnchecked(MODRM(1, reg, base)); - m_buffer->putByteUnchecked(offset); - } else { - m_buffer->putByteUnchecked(MODRM(2, reg, base)); - m_buffer->putIntUnchecked(offset); - } - } - } - - void emitModRm_rm(RegisterID reg, RegisterID base, int offset) - { - m_buffer->ensureSpace(MAX_INSTRUCTION_SIZE); - emitModRm_rm_Unchecked(reg, base, offset); - } - - void emitModRm_rmsib(RegisterID reg, RegisterID base, RegisterID index, int scale) - { - int shift = 0; - while (scale >>= 1) - shift++; - - m_buffer->putByte(MODRM(0, reg, X86::hasSib)); - m_buffer->putByte(SIB(shift, index, base)); - } - - void emitModRm_rmsib(RegisterID reg, RegisterID base, RegisterID index, int scale, int offset) - { - int shift = 0; - while (scale >>= 1) - shift++; - - if (CAN_SIGN_EXTEND_8_32(offset)) { - m_buffer->putByte(MODRM(1, reg, X86::hasSib)); - m_buffer->putByte(SIB(shift, index, base)); - m_buffer->putByte(offset); - } else { - m_buffer->putByte(MODRM(2, reg, X86::hasSib)); - m_buffer->putByte(SIB(shift, index, base)); - m_buffer->putInt(offset); - } - } - - void emitModRm_opr(OpcodeID opcode, RegisterID rm) - { - m_buffer->ensureSpace(MAX_INSTRUCTION_SIZE); - emitModRm_opr_Unchecked(opcode, rm); - } - - void emitModRm_opr_Unchecked(OpcodeID opcode, RegisterID rm) - { - emitModRm_rr_Unchecked(static_cast<RegisterID>(opcode), rm); - } - - void emitModRm_opm(OpcodeID opcode, RegisterID base) - { - emitModRm_rm(static_cast<RegisterID>(opcode), base); - } - - void emitModRm_opm_Unchecked(OpcodeID opcode, RegisterID base, int offset) - { - emitModRm_rm_Unchecked(static_cast<RegisterID>(opcode), base, offset); - } - - void emitModRm_opm(OpcodeID opcode, RegisterID base, int offset) - { - emitModRm_rm(static_cast<RegisterID>(opcode), base, offset); - } - - void emitModRm_opm(OpcodeID opcode, void* addr) - { - emitModRm_rm(static_cast<RegisterID>(opcode), addr); - } - - void emitModRm_opmsib(OpcodeID opcode, RegisterID base, RegisterID index, int scale, int offset) - { - emitModRm_rmsib(static_cast<RegisterID>(opcode), base, index, scale, offset); - } - - JITCodeBuffer* m_buffer; -}; - -} // namespace JSC - -#endif // ENABLE(MASM) && PLATFORM(X86) - -#endif // X86Assembler_h |