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diff --git a/Source/JavaScriptCore/dfg/DFGGPRInfo.h b/Source/JavaScriptCore/dfg/DFGGPRInfo.h
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-/*
- * Copyright (C) 2011 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 DFGGPRInfo_h
-#define DFGGPRInfo_h
-
-#include <wtf/Platform.h>
-
-#if ENABLE(DFG_JIT)
-
-#include "DFGRegisterBank.h"
-#include "MacroAssembler.h"
-
-namespace JSC { namespace DFG {
-
-typedef MacroAssembler::RegisterID GPRReg;
-#define InvalidGPRReg ((GPRReg)-1)
-
-#if USE(JSVALUE64)
-class JSValueRegs {
-public:
- JSValueRegs()
- : m_gpr(InvalidGPRReg)
- {
- }
-
- explicit JSValueRegs(GPRReg gpr)
- : m_gpr(gpr)
- {
- }
-
- bool operator!() const { return m_gpr == InvalidGPRReg; }
-
- GPRReg gpr() const { return m_gpr; }
-
-private:
- GPRReg m_gpr;
-};
-
-class JSValueSource {
-public:
- JSValueSource()
- : m_offset(notAddress())
- , m_base(InvalidGPRReg)
- {
- }
-
- JSValueSource(JSValueRegs regs)
- : m_offset(notAddress())
- , m_base(regs.gpr())
- {
- }
-
- explicit JSValueSource(GPRReg gpr)
- : m_offset(notAddress())
- , m_base(gpr)
- {
- }
-
- JSValueSource(MacroAssembler::Address address)
- : m_offset(address.offset)
- , m_base(address.base)
- {
- ASSERT(m_offset != notAddress());
- ASSERT(m_base != InvalidGPRReg);
- }
-
- static JSValueSource unboxedCell(GPRReg payloadGPR)
- {
- return JSValueSource(payloadGPR);
- }
-
- bool operator!() const { return m_base == InvalidGPRReg; }
-
- bool isAddress() const { return m_offset != notAddress(); }
-
- int32_t offset() const
- {
- ASSERT(isAddress());
- return m_offset;
- }
-
- GPRReg base() const
- {
- ASSERT(isAddress());
- return m_base;
- }
-
- GPRReg gpr() const
- {
- ASSERT(!isAddress());
- return m_base;
- }
-
- MacroAssembler::Address asAddress() const { return MacroAssembler::Address(base(), offset()); }
-
-private:
- static inline int32_t notAddress() { return 0x80000000; }
-
- int32_t m_offset;
- GPRReg m_base;
-};
-#endif
-
-#if USE(JSVALUE32_64)
-class JSValueRegs {
-public:
- JSValueRegs()
- : m_tagGPR(static_cast<int8_t>(InvalidGPRReg))
- , m_payloadGPR(static_cast<int8_t>(InvalidGPRReg))
- {
- }
-
- JSValueRegs(GPRReg tagGPR, GPRReg payloadGPR)
- : m_tagGPR(tagGPR)
- , m_payloadGPR(payloadGPR)
- {
- ASSERT((static_cast<GPRReg>(m_tagGPR) == InvalidGPRReg) == (static_cast<GPRReg>(payloadGPR) == InvalidGPRReg));
- }
-
- bool operator!() const { return static_cast<GPRReg>(m_tagGPR) == InvalidGPRReg; }
-
- GPRReg tagGPR() const { return static_cast<GPRReg>(m_tagGPR); }
- GPRReg payloadGPR() const { return static_cast<GPRReg>(m_payloadGPR); }
-
-private:
- int8_t m_tagGPR;
- int8_t m_payloadGPR;
-};
-
-class JSValueSource {
-public:
- JSValueSource()
- : m_offset(notAddress())
- , m_baseOrTag(static_cast<int8_t>(InvalidGPRReg))
- , m_payload(static_cast<int8_t>(InvalidGPRReg))
- , m_tagType(0)
- {
- }
-
- JSValueSource(JSValueRegs regs)
- : m_offset(notAddress())
- , m_baseOrTag(regs.tagGPR())
- , m_payload(regs.payloadGPR())
- , m_tagType(0)
- {
- }
-
- JSValueSource(GPRReg tagGPR, GPRReg payloadGPR)
- : m_offset(notAddress())
- , m_baseOrTag(static_cast<int8_t>(tagGPR))
- , m_payload(static_cast<int8_t>(payloadGPR))
- , m_tagType(0)
- {
- }
-
- JSValueSource(MacroAssembler::Address address)
- : m_offset(address.offset)
- , m_baseOrTag(static_cast<int8_t>(address.base))
- , m_payload(static_cast<int8_t>(InvalidGPRReg))
- , m_tagType(0)
- {
- ASSERT(m_offset != notAddress());
- ASSERT(static_cast<GPRReg>(m_baseOrTag) != InvalidGPRReg);
- }
-
- static JSValueSource unboxedCell(GPRReg payloadGPR)
- {
- JSValueSource result;
- result.m_offset = notAddress();
- result.m_baseOrTag = static_cast<int8_t>(InvalidGPRReg);
- result.m_payload = static_cast<int8_t>(payloadGPR);
- result.m_tagType = static_cast<int8_t>(JSValue::CellTag);
- return result;
- }
-
- bool operator!() const { return static_cast<GPRReg>(m_baseOrTag) == InvalidGPRReg && static_cast<GPRReg>(m_payload) == InvalidGPRReg; }
-
- bool isAddress() const
- {
- ASSERT(!!*this);
- return m_offset != notAddress();
- }
-
- int32_t offset() const
- {
- ASSERT(isAddress());
- return m_offset;
- }
-
- GPRReg base() const
- {
- ASSERT(isAddress());
- return static_cast<GPRReg>(m_baseOrTag);
- }
-
- GPRReg tagGPR() const
- {
- ASSERT(!isAddress() && static_cast<GPRReg>(m_baseOrTag) != InvalidGPRReg);
- return static_cast<GPRReg>(m_baseOrTag);
- }
-
- GPRReg payloadGPR() const
- {
- ASSERT(!isAddress());
- return static_cast<GPRReg>(m_payload);
- }
-
- bool hasKnownTag() const
- {
- ASSERT(!!*this);
- ASSERT(!isAddress());
- return static_cast<GPRReg>(m_baseOrTag) == InvalidGPRReg;
- }
-
- uint32_t tag() const
- {
- return static_cast<int32_t>(m_tagType);
- }
-
- MacroAssembler::Address asAddress(unsigned additionalOffset = 0) const { return MacroAssembler::Address(base(), offset() + additionalOffset); }
-
-private:
- static inline int32_t notAddress() { return 0x80000000; }
-
- int32_t m_offset;
- int8_t m_baseOrTag;
- int8_t m_payload;
- int8_t m_tagType; // Contains the low bits of the tag.
-};
-#endif
-
-#if CPU(X86)
-#define NUMBER_OF_ARGUMENT_REGISTERS 0
-
-class GPRInfo {
-public:
- typedef GPRReg RegisterType;
- static const unsigned numberOfRegisters = 5;
-
- // Temporary registers.
- static const GPRReg regT0 = X86Registers::eax;
- static const GPRReg regT1 = X86Registers::edx;
- static const GPRReg regT2 = X86Registers::ecx;
- static const GPRReg regT3 = X86Registers::ebx;
- static const GPRReg regT4 = X86Registers::esi;
- // These registers match the baseline JIT.
- static const GPRReg cachedResultRegister = regT0;
- static const GPRReg cachedResultRegister2 = regT1;
- static const GPRReg callFrameRegister = X86Registers::edi;
- // These constants provide the names for the general purpose argument & return value registers.
- static const GPRReg argumentGPR0 = X86Registers::ecx; // regT2
- static const GPRReg argumentGPR1 = X86Registers::edx; // regT1
- static const GPRReg nonArgGPR0 = X86Registers::eax; // regT0
- static const GPRReg nonArgGPR1 = X86Registers::ebx; // regT3
- static const GPRReg nonArgGPR2 = X86Registers::esi; // regT4
- static const GPRReg returnValueGPR = X86Registers::eax; // regT0
- static const GPRReg returnValueGPR2 = X86Registers::edx; // regT1
- static const GPRReg nonPreservedNonReturnGPR = X86Registers::ecx;
-
- static GPRReg toRegister(unsigned index)
- {
- ASSERT(index < numberOfRegisters);
- static const GPRReg registerForIndex[numberOfRegisters] = { regT0, regT1, regT2, regT3, regT4 };
- return registerForIndex[index];
- }
-
- static unsigned toIndex(GPRReg reg)
- {
- ASSERT(reg != InvalidGPRReg);
- ASSERT(static_cast<int>(reg) < 8);
- static const unsigned indexForRegister[8] = { 0, 2, 1, 3, InvalidIndex, InvalidIndex, 4, InvalidIndex };
- unsigned result = indexForRegister[reg];
- ASSERT(result != InvalidIndex);
- return result;
- }
-
- static const char* debugName(GPRReg reg)
- {
- ASSERT(reg != InvalidGPRReg);
- ASSERT(static_cast<int>(reg) < 8);
- static const char* nameForRegister[8] = {
- "eax", "ecx", "edx", "ebx",
- "esp", "ebp", "esi", "edi",
- };
- return nameForRegister[reg];
- }
-private:
-
- static const unsigned InvalidIndex = 0xffffffff;
-};
-
-#endif
-
-#if CPU(X86_64)
-#define NUMBER_OF_ARGUMENT_REGISTERS 6
-
-class GPRInfo {
-public:
- typedef GPRReg RegisterType;
- static const unsigned numberOfRegisters = 9;
-
- // These registers match the baseline JIT.
- static const GPRReg cachedResultRegister = X86Registers::eax;
- static const GPRReg callFrameRegister = X86Registers::r13;
- static const GPRReg tagTypeNumberRegister = X86Registers::r14;
- static const GPRReg tagMaskRegister = X86Registers::r15;
- // Temporary registers.
- static const GPRReg regT0 = X86Registers::eax;
- static const GPRReg regT1 = X86Registers::edx;
- static const GPRReg regT2 = X86Registers::ecx;
- static const GPRReg regT3 = X86Registers::ebx;
- static const GPRReg regT4 = X86Registers::edi;
- static const GPRReg regT5 = X86Registers::esi;
- static const GPRReg regT6 = X86Registers::r8;
- static const GPRReg regT7 = X86Registers::r9;
- static const GPRReg regT8 = X86Registers::r10;
- // These constants provide the names for the general purpose argument & return value registers.
- static const GPRReg argumentGPR0 = X86Registers::edi; // regT4
- static const GPRReg argumentGPR1 = X86Registers::esi; // regT5
- static const GPRReg argumentGPR2 = X86Registers::edx; // regT1
- static const GPRReg argumentGPR3 = X86Registers::ecx; // regT2
- static const GPRReg argumentGPR4 = X86Registers::r8; // regT6
- static const GPRReg argumentGPR5 = X86Registers::r9; // regT7
- static const GPRReg nonArgGPR0 = X86Registers::eax; // regT0
- static const GPRReg nonArgGPR1 = X86Registers::ebx; // regT3
- static const GPRReg nonArgGPR2 = X86Registers::r10; // regT8
- static const GPRReg returnValueGPR = X86Registers::eax; // regT0
- static const GPRReg returnValueGPR2 = X86Registers::edx; // regT1
- static const GPRReg nonPreservedNonReturnGPR = X86Registers::esi;
-
- static GPRReg toRegister(unsigned index)
- {
- ASSERT(index < numberOfRegisters);
- static const GPRReg registerForIndex[numberOfRegisters] = { regT0, regT1, regT2, regT3, regT4, regT5, regT6, regT7, regT8 };
- return registerForIndex[index];
- }
-
- static unsigned toIndex(GPRReg reg)
- {
- ASSERT(reg != InvalidGPRReg);
- ASSERT(static_cast<int>(reg) < 16);
- static const unsigned indexForRegister[16] = { 0, 2, 1, 3, InvalidIndex, InvalidIndex, 5, 4, 6, 7, 8, InvalidIndex, InvalidIndex, InvalidIndex, InvalidIndex, InvalidIndex };
- unsigned result = indexForRegister[reg];
- ASSERT(result != InvalidIndex);
- return result;
- }
-
- static const char* debugName(GPRReg reg)
- {
- ASSERT(reg != InvalidGPRReg);
- ASSERT(static_cast<int>(reg) < 16);
- static const char* nameForRegister[16] = {
- "rax", "rcx", "rdx", "rbx",
- "rsp", "rbp", "rsi", "rdi",
- "r8", "r9", "r10", "r11",
- "r12", "r13", "r14", "r15"
- };
- return nameForRegister[reg];
- }
-private:
-
- static const unsigned InvalidIndex = 0xffffffff;
-};
-
-#endif
-
-#if CPU(ARM)
-#define NUMBER_OF_ARGUMENT_REGISTERS 4
-
-class GPRInfo {
-public:
- typedef GPRReg RegisterType;
- static const unsigned numberOfRegisters = 9;
-
- // Temporary registers.
- static const GPRReg regT0 = ARMRegisters::r0;
- static const GPRReg regT1 = ARMRegisters::r1;
- static const GPRReg regT2 = ARMRegisters::r2;
- static const GPRReg regT3 = ARMRegisters::r4;
- static const GPRReg regT4 = ARMRegisters::r8;
- static const GPRReg regT5 = ARMRegisters::r9;
- static const GPRReg regT6 = ARMRegisters::r10;
- static const GPRReg regT7 = ARMRegisters::r11;
- static const GPRReg regT8 = ARMRegisters::r3;
- // These registers match the baseline JIT.
- static const GPRReg cachedResultRegister = regT0;
- static const GPRReg cachedResultRegister2 = regT1;
- static const GPRReg callFrameRegister = ARMRegisters::r5;
- // These constants provide the names for the general purpose argument & return value registers.
- static const GPRReg argumentGPR0 = ARMRegisters::r0; // regT0
- static const GPRReg argumentGPR1 = ARMRegisters::r1; // regT1
- static const GPRReg argumentGPR2 = ARMRegisters::r2; // regT2
- static const GPRReg argumentGPR3 = ARMRegisters::r3; // regT8
- static const GPRReg nonArgGPR0 = ARMRegisters::r4; // regT3
- static const GPRReg nonArgGPR1 = ARMRegisters::r8; // regT4
- static const GPRReg nonArgGPR2 = ARMRegisters::r9; // regT5
- static const GPRReg returnValueGPR = ARMRegisters::r0; // regT0
- static const GPRReg returnValueGPR2 = ARMRegisters::r1; // regT1
- static const GPRReg nonPreservedNonReturnGPR = ARMRegisters::r2;
-
- static GPRReg toRegister(unsigned index)
- {
- ASSERT(index < numberOfRegisters);
- static const GPRReg registerForIndex[numberOfRegisters] = { regT0, regT1, regT2, regT3, regT4, regT5, regT6, regT7, regT8 };
- return registerForIndex[index];
- }
-
- static unsigned toIndex(GPRReg reg)
- {
- ASSERT(static_cast<unsigned>(reg) != InvalidGPRReg);
- ASSERT(static_cast<unsigned>(reg) < 16);
- static const unsigned indexForRegister[16] = { 0, 1, 2, 8, 3, InvalidIndex, InvalidIndex, InvalidIndex, 4, 5, 6, 7, InvalidIndex, InvalidIndex, InvalidIndex, InvalidIndex };
- unsigned result = indexForRegister[reg];
- ASSERT(result != InvalidIndex);
- return result;
- }
-
- static const char* debugName(GPRReg reg)
- {
- ASSERT(static_cast<unsigned>(reg) != InvalidGPRReg);
- ASSERT(static_cast<unsigned>(reg) < 16);
- static const char* nameForRegister[16] = {
- "r0", "r1", "r2", "r3",
- "r4", "r5", "r6", "r7",
- "r8", "r9", "r10", "r11",
- "r12", "r13", "r14", "r15"
- };
- return nameForRegister[reg];
- }
-private:
-
- static const unsigned InvalidIndex = 0xffffffff;
-};
-
-#endif
-
-#if CPU(MIPS)
-#define NUMBER_OF_ARGUMENT_REGISTERS 4
-
-class GPRInfo {
-public:
- typedef GPRReg RegisterType;
- static const unsigned numberOfRegisters = 6;
-
- // Temporary registers.
- static const GPRReg regT0 = MIPSRegisters::v0;
- static const GPRReg regT1 = MIPSRegisters::v1;
- static const GPRReg regT2 = MIPSRegisters::t4;
- static const GPRReg regT3 = MIPSRegisters::t5;
- static const GPRReg regT4 = MIPSRegisters::t6;
- static const GPRReg regT5 = MIPSRegisters::t7;
- // These registers match the baseline JIT.
- static const GPRReg cachedResultRegister = regT0;
- static const GPRReg cachedResultRegister2 = regT1;
- static const GPRReg callFrameRegister = MIPSRegisters::s0;
- // These constants provide the names for the general purpose argument & return value registers.
- static const GPRReg argumentGPR0 = MIPSRegisters::a0;
- static const GPRReg argumentGPR1 = MIPSRegisters::a1;
- static const GPRReg argumentGPR2 = MIPSRegisters::a2;
- static const GPRReg argumentGPR3 = MIPSRegisters::a3;
- static const GPRReg nonArgGPR0 = regT2;
- static const GPRReg nonArgGPR1 = regT3;
- static const GPRReg nonArgGPR2 = regT4;
- static const GPRReg returnValueGPR = regT0;
- static const GPRReg returnValueGPR2 = regT1;
- static const GPRReg nonPreservedNonReturnGPR = regT5;
-
- static GPRReg toRegister(unsigned index)
- {
- ASSERT(index < numberOfRegisters);
- static const GPRReg registerForIndex[numberOfRegisters] = { regT0, regT1, regT2, regT3, regT4, regT5 };
- return registerForIndex[index];
- }
-
- static unsigned toIndex(GPRReg reg)
- {
- ASSERT(reg != InvalidGPRReg);
- ASSERT(reg < 16);
- static const unsigned indexForRegister[16] = { InvalidIndex, InvalidIndex, 0, 1, InvalidIndex, InvalidIndex, InvalidIndex, InvalidIndex, InvalidIndex, InvalidIndex, InvalidIndex, InvalidIndex, 2, 3, 4, 5 };
- unsigned result = indexForRegister[reg];
- ASSERT(result != InvalidIndex);
- return result;
- }
-
- static const char* debugName(GPRReg reg)
- {
- ASSERT(reg != InvalidGPRReg);
- ASSERT(reg < 16);
- static const char* nameForRegister[16] = {
- "zero", "at", "v0", "v1",
- "a0", "a1", "a2", "a3",
- "t0", "t1", "t2", "t3",
- "t4", "t5", "t6", "t7"
- };
- return nameForRegister[reg];
- }
-private:
-
- static const unsigned InvalidIndex = 0xffffffff;
-};
-
-#endif
-
-#if CPU(SH4)
-#define NUMBER_OF_ARGUMENT_REGISTERS 4
-
-class GPRInfo {
-public:
- typedef GPRReg RegisterType;
- static const unsigned numberOfRegisters = 10;
-
- // Temporary registers.
- static const GPRReg regT0 = SH4Registers::r0;
- static const GPRReg regT1 = SH4Registers::r1;
- static const GPRReg regT2 = SH4Registers::r2;
- static const GPRReg regT3 = SH4Registers::r10;
- static const GPRReg regT4 = SH4Registers::r4;
- static const GPRReg regT5 = SH4Registers::r5;
- static const GPRReg regT6 = SH4Registers::r6;
- static const GPRReg regT7 = SH4Registers::r7;
- static const GPRReg regT8 = SH4Registers::r8;
- static const GPRReg regT9 = SH4Registers::r9;
- // These registers match the baseline JIT.
- static const GPRReg cachedResultRegister = regT0;
- static const GPRReg cachedResultRegister2 = regT1;
- static const GPRReg callFrameRegister = SH4Registers::fp;
- // These constants provide the names for the general purpose argument & return value registers.
- static const GPRReg argumentGPR0 = regT4;
- static const GPRReg argumentGPR1 = regT5;
- static const GPRReg argumentGPR2 = regT6;
- static const GPRReg argumentGPR3 = regT7;
- static const GPRReg nonArgGPR0 = regT3;
- static const GPRReg nonArgGPR1 = regT8;
- static const GPRReg nonArgGPR2 = regT9;
- static const GPRReg returnValueGPR = regT0;
- static const GPRReg returnValueGPR2 = regT1;
- static const GPRReg nonPreservedNonReturnGPR = regT2;
-
- static GPRReg toRegister(unsigned index)
- {
- ASSERT(index < numberOfRegisters);
- static const GPRReg registerForIndex[numberOfRegisters] = { regT0, regT1, regT2, regT3, regT4, regT5, regT6, regT7, regT8, regT9 };
- return registerForIndex[index];
- }
-
- static unsigned toIndex(GPRReg reg)
- {
- ASSERT(reg != InvalidGPRReg);
- ASSERT(reg < 14);
- static const unsigned indexForRegister[14] = { 0, 1, 2, InvalidIndex, 4, 5, 6, 7, 8, 9, 3, InvalidIndex, InvalidIndex, InvalidIndex };
- unsigned result = indexForRegister[reg];
- ASSERT(result != InvalidIndex);
- return result;
- }
-
- static const char* debugName(GPRReg reg)
- {
- ASSERT(reg != InvalidGPRReg);
- ASSERT(reg < 16);
- static const char* nameForRegister[16] = {
- "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7",
- "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15"
- };
- return nameForRegister[reg];
- }
-
-private:
- static const unsigned InvalidIndex = 0xffffffff;
-};
-
-#endif
-
-typedef RegisterBank<GPRInfo>::iterator gpr_iterator;
-
-} } // namespace JSC::DFG
-
-#endif
-#endif