#ifndef JSInterfaceJIT_h
#define JSInterfaceJIT_h
+#include "BytecodeConventions.h"
#include "JITCode.h"
#include "JITStubs.h"
-#include "JSImmediate.h"
+#include "JSCJSValue.h"
+#include "JSStack.h"
+#include "JSString.h"
#include "MacroAssembler.h"
-#include "RegisterFile.h"
-#include <wtf/AlwaysInline.h>
#include <wtf/Vector.h>
+#if ENABLE(JIT)
+
namespace JSC {
class JSInterfaceJIT : public MacroAssembler {
public:
#if CPU(X86_64)
static const RegisterID returnValueRegister = X86Registers::eax;
static const RegisterID cachedResultRegister = X86Registers::eax;
+#if !OS(WINDOWS)
static const RegisterID firstArgumentRegister = X86Registers::edi;
-
- static const RegisterID timeoutCheckRegister = X86Registers::r12;
+#else
+ static const RegisterID firstArgumentRegister = X86Registers::ecx;
+#endif
+
+#if ENABLE(VALUE_PROFILER)
+ static const RegisterID bucketCounterRegister = X86Registers::r10;
+#endif
+
static const RegisterID callFrameRegister = X86Registers::r13;
static const RegisterID tagTypeNumberRegister = X86Registers::r14;
static const RegisterID tagMaskRegister = X86Registers::r15;
-
+
static const RegisterID regT0 = X86Registers::eax;
static const RegisterID regT1 = X86Registers::edx;
static const RegisterID regT2 = X86Registers::ecx;
static const RegisterID regT3 = X86Registers::ebx;
-
+
static const FPRegisterID fpRegT0 = X86Registers::xmm0;
static const FPRegisterID fpRegT1 = X86Registers::xmm1;
static const FPRegisterID fpRegT2 = X86Registers::xmm2;
static const FPRegisterID fpRegT3 = X86Registers::xmm3;
+
+ static const RegisterID nonArgGPR1 = X86Registers::eax; // regT0
#elif CPU(X86)
static const RegisterID returnValueRegister = X86Registers::eax;
static const RegisterID cachedResultRegister = X86Registers::eax;
// OS X if might make more sense to just use regparm.
static const RegisterID firstArgumentRegister = X86Registers::ecx;
- static const RegisterID timeoutCheckRegister = X86Registers::esi;
+ static const RegisterID bucketCounterRegister = X86Registers::esi;
static const RegisterID callFrameRegister = X86Registers::edi;
static const RegisterID regT0 = X86Registers::eax;
static const FPRegisterID fpRegT1 = X86Registers::xmm1;
static const FPRegisterID fpRegT2 = X86Registers::xmm2;
static const FPRegisterID fpRegT3 = X86Registers::xmm3;
-#elif CPU(ARM_THUMB2)
+#elif CPU(ARM)
static const RegisterID returnValueRegister = ARMRegisters::r0;
static const RegisterID cachedResultRegister = ARMRegisters::r0;
static const RegisterID firstArgumentRegister = ARMRegisters::r0;
-
+
+#if ENABLE(VALUE_PROFILER)
+ static const RegisterID bucketCounterRegister = ARMRegisters::r7;
+#endif
+
static const RegisterID regT0 = ARMRegisters::r0;
static const RegisterID regT1 = ARMRegisters::r1;
static const RegisterID regT2 = ARMRegisters::r2;
static const RegisterID regT3 = ARMRegisters::r4;
-
+
+ // Update ctiTrampoline in JITStubs.cpp if these values are changed!
static const RegisterID callFrameRegister = ARMRegisters::r5;
- static const RegisterID timeoutCheckRegister = ARMRegisters::r6;
-
+
static const FPRegisterID fpRegT0 = ARMRegisters::d0;
static const FPRegisterID fpRegT1 = ARMRegisters::d1;
static const FPRegisterID fpRegT2 = ARMRegisters::d2;
static const FPRegisterID fpRegT3 = ARMRegisters::d3;
-#elif CPU(ARM_TRADITIONAL)
- static const RegisterID returnValueRegister = ARMRegisters::r0;
- static const RegisterID cachedResultRegister = ARMRegisters::r0;
- static const RegisterID firstArgumentRegister = ARMRegisters::r0;
-
- static const RegisterID timeoutCheckRegister = ARMRegisters::r5;
- static const RegisterID callFrameRegister = ARMRegisters::r4;
-
- static const RegisterID regT0 = ARMRegisters::r0;
- static const RegisterID regT1 = ARMRegisters::r1;
- static const RegisterID regT2 = ARMRegisters::r2;
- // Callee preserved
- static const RegisterID regT3 = ARMRegisters::r7;
-
- static const RegisterID regS0 = ARMRegisters::S0;
- // Callee preserved
- static const RegisterID regS1 = ARMRegisters::S1;
+#elif CPU(ARM64)
+ static const RegisterID returnValueRegister = ARM64Registers::x0;
+ static const RegisterID cachedResultRegister = ARM64Registers::x0;
+ static const RegisterID firstArgumentRegister = ARM64Registers::x0;
+
+#if ENABLE(VALUE_PROFILER)
+ static const RegisterID bucketCounterRegister = ARM64Registers::x7;
+#endif
+
+ static const RegisterID regT0 = ARM64Registers::x0;
+ static const RegisterID regT1 = ARM64Registers::x1;
+ static const RegisterID regT2 = ARM64Registers::x2;
+ static const RegisterID regT3 = ARM64Registers::x23;
- static const RegisterID regStackPtr = ARMRegisters::sp;
- static const RegisterID regLink = ARMRegisters::lr;
+ static const RegisterID callFrameRegister = ARM64Registers::x25;
+ static const RegisterID timeoutCheckRegister = ARM64Registers::x26;
+ static const RegisterID tagTypeNumberRegister = ARM64Registers::x27;
+ static const RegisterID tagMaskRegister = ARM64Registers::x28;
- static const FPRegisterID fpRegT0 = ARMRegisters::d0;
- static const FPRegisterID fpRegT1 = ARMRegisters::d1;
- static const FPRegisterID fpRegT2 = ARMRegisters::d2;
- static const FPRegisterID fpRegT3 = ARMRegisters::d3;
+ static const FPRegisterID fpRegT0 = ARM64Registers::q0;
+ static const FPRegisterID fpRegT1 = ARM64Registers::q1;
+ static const FPRegisterID fpRegT2 = ARM64Registers::q2;
+ static const FPRegisterID fpRegT3 = ARM64Registers::q3;
+
+ static const RegisterID nonArgGPR1 = ARM64Registers::x9;
#elif CPU(MIPS)
static const RegisterID returnValueRegister = MIPSRegisters::v0;
static const RegisterID cachedResultRegister = MIPSRegisters::v0;
static const RegisterID firstArgumentRegister = MIPSRegisters::a0;
+#if ENABLE(VALUE_PROFILER)
+ static const RegisterID bucketCounterRegister = MIPSRegisters::s3;
+#endif
+
// regT0 must be v0 for returning a 32-bit value.
static const RegisterID regT0 = MIPSRegisters::v0;
static const RegisterID regT3 = MIPSRegisters::s2;
static const RegisterID callFrameRegister = MIPSRegisters::s0;
- static const RegisterID timeoutCheckRegister = MIPSRegisters::s1;
static const FPRegisterID fpRegT0 = MIPSRegisters::f4;
static const FPRegisterID fpRegT1 = MIPSRegisters::f6;
static const FPRegisterID fpRegT2 = MIPSRegisters::f8;
- static const FPRegisterID fpRegT2 = MIPSRegisters::f10;
+ static const FPRegisterID fpRegT3 = MIPSRegisters::f10;
+#elif CPU(SH4)
+ static const RegisterID callFrameRegister = SH4Registers::fp;
+
+ static const RegisterID regT0 = SH4Registers::r0;
+ static const RegisterID regT1 = SH4Registers::r1;
+ static const RegisterID regT2 = SH4Registers::r2;
+ static const RegisterID regT3 = SH4Registers::r10;
+ static const RegisterID regT4 = SH4Registers::r4;
+ static const RegisterID regT5 = SH4Registers::r5;
+ static const RegisterID regT6 = SH4Registers::r6;
+ static const RegisterID regT7 = SH4Registers::r7;
+ static const RegisterID firstArgumentRegister =regT4;
+
+ static const RegisterID returnValueRegister = SH4Registers::r0;
+ static const RegisterID cachedResultRegister = SH4Registers::r0;
+
+ static const FPRegisterID fpRegT0 = SH4Registers::fr0;
+ static const FPRegisterID fpRegT1 = SH4Registers::fr2;
+ static const FPRegisterID fpRegT2 = SH4Registers::fr4;
+ static const FPRegisterID fpRegT3 = SH4Registers::fr6;
+ static const FPRegisterID fpRegT4 = SH4Registers::fr8;
+ static const FPRegisterID fpRegT5 = SH4Registers::fr10;
+ static const FPRegisterID fpRegT6 = SH4Registers::fr12;
+ static const FPRegisterID fpRegT7 = SH4Registers::fr14;
#else
#error "JIT not supported on this platform."
#endif
+#if USE(JSVALUE32_64)
+ // Can't just propogate JSValue::Int32Tag as visual studio doesn't like it
+ static const unsigned Int32Tag = 0xffffffff;
+ COMPILE_ASSERT(Int32Tag == JSValue::Int32Tag, Int32Tag_out_of_sync);
+#else
+ static const unsigned Int32Tag = TagTypeNumber >> 32;
+#endif
inline Jump emitLoadJSCell(unsigned virtualRegisterIndex, RegisterID payload);
inline Jump emitLoadInt32(unsigned virtualRegisterIndex, RegisterID dst);
inline Jump emitLoadDouble(unsigned virtualRegisterIndex, FPRegisterID dst, RegisterID scratch);
#if USE(JSVALUE32_64)
inline Jump emitJumpIfNotJSCell(unsigned virtualRegisterIndex);
- inline Address tagFor(unsigned index, RegisterID base = callFrameRegister);
+ inline Address tagFor(int index, RegisterID base = callFrameRegister);
#endif
-#if USE(JSVALUE32) || USE(JSVALUE64)
+#if USE(JSVALUE64)
+ Jump emitJumpIfNotJSCell(RegisterID);
Jump emitJumpIfImmediateNumber(RegisterID reg);
Jump emitJumpIfNotImmediateNumber(RegisterID reg);
void emitFastArithImmToInt(RegisterID reg);
+ void emitFastArithIntToImmNoCheck(RegisterID src, RegisterID dest);
#endif
- inline Address payloadFor(unsigned index, RegisterID base = callFrameRegister);
- inline Address addressFor(unsigned index, RegisterID base = callFrameRegister);
+ Jump emitJumpIfNotType(RegisterID baseReg, RegisterID scratchReg, JSType);
+
+ void emitGetFromCallFrameHeaderPtr(JSStack::CallFrameHeaderEntry, RegisterID to, RegisterID from = callFrameRegister);
+ void emitPutToCallFrameHeader(RegisterID from, JSStack::CallFrameHeaderEntry);
+ void emitPutImmediateToCallFrameHeader(void* value, JSStack::CallFrameHeaderEntry);
+ void emitPutCellToCallFrameHeader(RegisterID from, JSStack::CallFrameHeaderEntry);
+
+ void preserveReturnAddressAfterCall(RegisterID);
+ void restoreReturnAddressBeforeReturn(RegisterID);
+ void restoreReturnAddressBeforeReturn(Address);
+ void restoreArgumentReference();
+
+ inline Address payloadFor(int index, RegisterID base = callFrameRegister);
+ inline Address intPayloadFor(int index, RegisterID base = callFrameRegister);
+ inline Address intTagFor(int index, RegisterID base = callFrameRegister);
+ inline Address addressFor(int index, RegisterID base = callFrameRegister);
};
struct ThunkHelpers {
- static unsigned stringImplDataOffset() { return WebCore::StringImpl::dataOffset(); }
static unsigned jsStringLengthOffset() { return OBJECT_OFFSETOF(JSString, m_length); }
static unsigned jsStringValueOffset() { return OBJECT_OFFSETOF(JSString, m_value); }
};
inline JSInterfaceJIT::Jump JSInterfaceJIT::emitJumpIfNotJSCell(unsigned virtualRegisterIndex)
{
ASSERT(static_cast<int>(virtualRegisterIndex) < FirstConstantRegisterIndex);
- return branch32(NotEqual, tagFor(virtualRegisterIndex), Imm32(JSValue::CellTag));
+ return branch32(NotEqual, tagFor(virtualRegisterIndex), TrustedImm32(JSValue::CellTag));
}
inline JSInterfaceJIT::Jump JSInterfaceJIT::emitLoadInt32(unsigned virtualRegisterIndex, RegisterID dst)
{
ASSERT(static_cast<int>(virtualRegisterIndex) < FirstConstantRegisterIndex);
loadPtr(payloadFor(virtualRegisterIndex), dst);
- return branch32(NotEqual, tagFor(virtualRegisterIndex), Imm32(JSValue::Int32Tag));
+ return branch32(NotEqual, tagFor(static_cast<int>(virtualRegisterIndex)), TrustedImm32(JSValue::Int32Tag));
}
- inline JSInterfaceJIT::Address JSInterfaceJIT::tagFor(unsigned virtualRegisterIndex, RegisterID base)
+ inline JSInterfaceJIT::Address JSInterfaceJIT::tagFor(int virtualRegisterIndex, RegisterID base)
{
- ASSERT(static_cast<int>(virtualRegisterIndex) < FirstConstantRegisterIndex);
- return Address(base, (virtualRegisterIndex * sizeof(Register)) + OBJECT_OFFSETOF(JSValue, u.asBits.tag));
+ ASSERT(virtualRegisterIndex < FirstConstantRegisterIndex);
+ return Address(base, (static_cast<unsigned>(virtualRegisterIndex) * sizeof(Register)) + OBJECT_OFFSETOF(JSValue, u.asBits.tag));
}
- inline JSInterfaceJIT::Address JSInterfaceJIT::payloadFor(unsigned virtualRegisterIndex, RegisterID base)
+ inline JSInterfaceJIT::Address JSInterfaceJIT::payloadFor(int virtualRegisterIndex, RegisterID base)
{
- ASSERT(static_cast<int>(virtualRegisterIndex) < FirstConstantRegisterIndex);
- return Address(base, (virtualRegisterIndex * sizeof(Register)) + OBJECT_OFFSETOF(JSValue, u.asBits.payload));
+ ASSERT(virtualRegisterIndex < FirstConstantRegisterIndex);
+ return Address(base, (static_cast<unsigned>(virtualRegisterIndex) * sizeof(Register)) + OBJECT_OFFSETOF(JSValue, u.asBits.payload));
+ }
+
+ inline JSInterfaceJIT::Address JSInterfaceJIT::intPayloadFor(int virtualRegisterIndex, RegisterID base)
+ {
+ return payloadFor(virtualRegisterIndex, base);
+ }
+
+ inline JSInterfaceJIT::Address JSInterfaceJIT::intTagFor(int virtualRegisterIndex, RegisterID base)
+ {
+ return tagFor(virtualRegisterIndex, base);
}
inline JSInterfaceJIT::Jump JSInterfaceJIT::emitLoadDouble(unsigned virtualRegisterIndex, FPRegisterID dst, RegisterID scratch)
{
ASSERT(static_cast<int>(virtualRegisterIndex) < FirstConstantRegisterIndex);
loadPtr(tagFor(virtualRegisterIndex), scratch);
- Jump isDouble = branch32(Below, scratch, Imm32(JSValue::LowestTag));
- Jump notInt = branch32(NotEqual, scratch, Imm32(JSValue::Int32Tag));
+ Jump isDouble = branch32(Below, scratch, TrustedImm32(JSValue::LowestTag));
+ Jump notInt = branch32(NotEqual, scratch, TrustedImm32(JSValue::Int32Tag));
loadPtr(payloadFor(virtualRegisterIndex), scratch);
convertInt32ToDouble(scratch, dst);
Jump done = jump();
loadDouble(addressFor(virtualRegisterIndex), dst);
done.link(this);
return notInt;
- }
+ }
+
#endif
#if USE(JSVALUE64)
+ ALWAYS_INLINE JSInterfaceJIT::Jump JSInterfaceJIT::emitJumpIfNotJSCell(RegisterID reg)
+ {
+ return branchTest64(NonZero, reg, tagMaskRegister);
+ }
+
ALWAYS_INLINE JSInterfaceJIT::Jump JSInterfaceJIT::emitJumpIfImmediateNumber(RegisterID reg)
{
- return branchTestPtr(NonZero, reg, tagTypeNumberRegister);
+ return branchTest64(NonZero, reg, tagTypeNumberRegister);
}
ALWAYS_INLINE JSInterfaceJIT::Jump JSInterfaceJIT::emitJumpIfNotImmediateNumber(RegisterID reg)
{
- return branchTestPtr(Zero, reg, tagTypeNumberRegister);
+ return branchTest64(Zero, reg, tagTypeNumberRegister);
}
inline JSInterfaceJIT::Jump JSInterfaceJIT::emitLoadJSCell(unsigned virtualRegisterIndex, RegisterID dst)
{
- loadPtr(addressFor(virtualRegisterIndex), dst);
- return branchTestPtr(NonZero, dst, tagMaskRegister);
+ load64(addressFor(virtualRegisterIndex), dst);
+ return branchTest64(NonZero, dst, tagMaskRegister);
}
inline JSInterfaceJIT::Jump JSInterfaceJIT::emitLoadInt32(unsigned virtualRegisterIndex, RegisterID dst)
{
- loadPtr(addressFor(virtualRegisterIndex), dst);
- Jump result = branchPtr(Below, dst, tagTypeNumberRegister);
+ load64(addressFor(virtualRegisterIndex), dst);
+ Jump result = branch64(Below, dst, tagTypeNumberRegister);
zeroExtend32ToPtr(dst, dst);
return result;
}
inline JSInterfaceJIT::Jump JSInterfaceJIT::emitLoadDouble(unsigned virtualRegisterIndex, FPRegisterID dst, RegisterID scratch)
{
- loadPtr(addressFor(virtualRegisterIndex), scratch);
+ load64(addressFor(virtualRegisterIndex), scratch);
Jump notNumber = emitJumpIfNotImmediateNumber(scratch);
- Jump notInt = branchPtr(Below, scratch, tagTypeNumberRegister);
+ Jump notInt = branch64(Below, scratch, tagTypeNumberRegister);
convertInt32ToDouble(scratch, dst);
Jump done = jump();
notInt.link(this);
- addPtr(tagTypeNumberRegister, scratch);
- movePtrToDouble(scratch, dst);
+ add64(tagTypeNumberRegister, scratch);
+ move64ToDouble(scratch, dst);
done.link(this);
return notNumber;
}
-
+
ALWAYS_INLINE void JSInterfaceJIT::emitFastArithImmToInt(RegisterID)
{
}
+ // operand is int32_t, must have been zero-extended if register is 64-bit.
+ ALWAYS_INLINE void JSInterfaceJIT::emitFastArithIntToImmNoCheck(RegisterID src, RegisterID dest)
+ {
+ if (src != dest)
+ move(src, dest);
+ or64(tagTypeNumberRegister, dest);
+ }
#endif
-#if USE(JSVALUE32)
- inline JSInterfaceJIT::Jump JSInterfaceJIT::emitLoadJSCell(unsigned virtualRegisterIndex, RegisterID dst)
+#if USE(JSVALUE64)
+ inline JSInterfaceJIT::Address JSInterfaceJIT::payloadFor(int virtualRegisterIndex, RegisterID base)
{
- loadPtr(addressFor(virtualRegisterIndex), dst);
- return branchTest32(NonZero, dst, Imm32(JSImmediate::TagMask));
+ ASSERT(virtualRegisterIndex < FirstConstantRegisterIndex);
+ return addressFor(virtualRegisterIndex, base);
}
- inline JSInterfaceJIT::Jump JSInterfaceJIT::emitLoadInt32(unsigned virtualRegisterIndex, RegisterID dst)
+ inline JSInterfaceJIT::Address JSInterfaceJIT::intPayloadFor(int virtualRegisterIndex, RegisterID base)
{
- loadPtr(addressFor(virtualRegisterIndex), dst);
- Jump result = branchTest32(Zero, dst, Imm32(JSImmediate::TagTypeNumber));
- rshift32(Imm32(JSImmediate::IntegerPayloadShift), dst);
- return result;
+ ASSERT(virtualRegisterIndex < FirstConstantRegisterIndex);
+ return Address(base, (static_cast<unsigned>(virtualRegisterIndex) * sizeof(Register)) + OBJECT_OFFSETOF(EncodedValueDescriptor, asBits.payload));
+ }
+ inline JSInterfaceJIT::Address JSInterfaceJIT::intTagFor(int virtualRegisterIndex, RegisterID base)
+ {
+ ASSERT(virtualRegisterIndex < FirstConstantRegisterIndex);
+ return Address(base, (static_cast<unsigned>(virtualRegisterIndex) * sizeof(Register)) + OBJECT_OFFSETOF(EncodedValueDescriptor, asBits.tag));
+ }
+#endif
+
+ ALWAYS_INLINE JSInterfaceJIT::Jump JSInterfaceJIT::emitJumpIfNotType(RegisterID baseReg, RegisterID scratchReg, JSType type)
+ {
+ loadPtr(Address(baseReg, JSCell::structureOffset()), scratchReg);
+ return branch8(NotEqual, Address(scratchReg, Structure::typeInfoTypeOffset()), TrustedImm32(type));
+ }
+
+ ALWAYS_INLINE void JSInterfaceJIT::emitGetFromCallFrameHeaderPtr(JSStack::CallFrameHeaderEntry entry, RegisterID to, RegisterID from)
+ {
+ loadPtr(Address(from, entry * sizeof(Register)), to);
+ }
+
+ ALWAYS_INLINE void JSInterfaceJIT::emitPutToCallFrameHeader(RegisterID from, JSStack::CallFrameHeaderEntry entry)
+ {
+#if USE(JSVALUE32_64)
+ storePtr(from, payloadFor(entry, callFrameRegister));
+#else
+ store64(from, addressFor(entry, callFrameRegister));
+#endif
}
- inline JSInterfaceJIT::Jump JSInterfaceJIT::emitLoadDouble(unsigned, FPRegisterID, RegisterID)
+ ALWAYS_INLINE void JSInterfaceJIT::emitPutImmediateToCallFrameHeader(void* value, JSStack::CallFrameHeaderEntry entry)
{
- ASSERT_NOT_REACHED();
- return jump();
+ storePtr(TrustedImmPtr(value), Address(callFrameRegister, entry * sizeof(Register)));
+ }
+
+ ALWAYS_INLINE void JSInterfaceJIT::emitPutCellToCallFrameHeader(RegisterID from, JSStack::CallFrameHeaderEntry entry)
+ {
+#if USE(JSVALUE32_64)
+ store32(TrustedImm32(JSValue::CellTag), tagFor(entry, callFrameRegister));
+ store32(from, payloadFor(entry, callFrameRegister));
+#else
+ store64(from, addressFor(entry, callFrameRegister));
+#endif
+ }
+
+ inline JSInterfaceJIT::Address JSInterfaceJIT::addressFor(int virtualRegisterIndex, RegisterID base)
+ {
+ ASSERT(virtualRegisterIndex < FirstConstantRegisterIndex);
+ return Address(base, (static_cast<unsigned>(virtualRegisterIndex) * sizeof(Register)));
+ }
+
+#if CPU(ARM) || CPU(ARM64)
+
+ ALWAYS_INLINE void JSInterfaceJIT::preserveReturnAddressAfterCall(RegisterID reg)
+ {
+ move(linkRegister, reg);
}
- ALWAYS_INLINE void JSInterfaceJIT::emitFastArithImmToInt(RegisterID reg)
+ ALWAYS_INLINE void JSInterfaceJIT::restoreReturnAddressBeforeReturn(RegisterID reg)
{
- rshift32(Imm32(JSImmediate::IntegerPayloadShift), reg);
+ move(reg, linkRegister);
}
-#endif
+ ALWAYS_INLINE void JSInterfaceJIT::restoreReturnAddressBeforeReturn(Address address)
+ {
+ loadPtr(address, linkRegister);
+ }
+#elif CPU(SH4)
-#if !USE(JSVALUE32_64)
- inline JSInterfaceJIT::Address JSInterfaceJIT::payloadFor(unsigned virtualRegisterIndex, RegisterID base)
+ ALWAYS_INLINE void JSInterfaceJIT::preserveReturnAddressAfterCall(RegisterID reg)
{
- ASSERT(static_cast<int>(virtualRegisterIndex) < FirstConstantRegisterIndex);
- return addressFor(virtualRegisterIndex, base);
+ m_assembler.stspr(reg);
+ }
+
+ ALWAYS_INLINE void JSInterfaceJIT::restoreReturnAddressBeforeReturn(RegisterID reg)
+ {
+ m_assembler.ldspr(reg);
+ }
+
+ ALWAYS_INLINE void JSInterfaceJIT::restoreReturnAddressBeforeReturn(Address address)
+ {
+ loadPtrLinkReg(address);
+ }
+
+#elif CPU(MIPS)
+
+ ALWAYS_INLINE void JSInterfaceJIT::preserveReturnAddressAfterCall(RegisterID reg)
+ {
+ move(returnAddressRegister, reg);
+ }
+
+ ALWAYS_INLINE void JSInterfaceJIT::restoreReturnAddressBeforeReturn(RegisterID reg)
+ {
+ move(reg, returnAddressRegister);
}
+
+ ALWAYS_INLINE void JSInterfaceJIT::restoreReturnAddressBeforeReturn(Address address)
+ {
+ loadPtr(address, returnAddressRegister);
+ }
+
+#else // CPU(X86) || CPU(X86_64)
+
+ ALWAYS_INLINE void JSInterfaceJIT::preserveReturnAddressAfterCall(RegisterID reg)
+ {
+ pop(reg);
+ }
+
+ ALWAYS_INLINE void JSInterfaceJIT::restoreReturnAddressBeforeReturn(RegisterID reg)
+ {
+ push(reg);
+ }
+
+ ALWAYS_INLINE void JSInterfaceJIT::restoreReturnAddressBeforeReturn(Address address)
+ {
+ push(address);
+ }
+
#endif
- inline JSInterfaceJIT::Address JSInterfaceJIT::addressFor(unsigned virtualRegisterIndex, RegisterID base)
+ ALWAYS_INLINE void JSInterfaceJIT::restoreArgumentReference()
{
- ASSERT(static_cast<int>(virtualRegisterIndex) < FirstConstantRegisterIndex);
- return Address(base, (virtualRegisterIndex * sizeof(Register)));
+ move(stackPointerRegister, firstArgumentRegister);
+ poke(callFrameRegister, OBJECT_OFFSETOF(struct JITStackFrame, callFrame) / sizeof(void*));
}
-}
+} // namespace JSC
+
+#endif // ENABLE(JIT)
#endif // JSInterfaceJIT_h
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