#define JSInterfaceJIT_h
#include "BytecodeConventions.h"
+#include "CCallHelpers.h"
+#include "FPRInfo.h"
+#include "GPRInfo.h"
#include "JITCode.h"
+#include "JITOperations.h"
#include "JITStubs.h"
+#include "JSCJSValue.h"
+#include "JSStack.h"
#include "JSString.h"
-#include "JSValue.h"
#include "MacroAssembler.h"
-#include "RegisterFile.h"
-#include <wtf/AlwaysInline.h>
#include <wtf/Vector.h>
+#if ENABLE(JIT)
+
namespace JSC {
- class JSInterfaceJIT : public MacroAssembler {
+ class JSInterfaceJIT : public CCallHelpers, public GPRInfo, public FPRInfo {
public:
- // NOTES:
- //
- // regT0 has two special meanings. The return value from a stub
- // call will always be in regT0, and by default (unless
- // a register is specified) emitPutVirtualRegister() will store
- // the value from regT0.
- //
- // regT3 is required to be callee-preserved.
- //
- // tempRegister2 is has no such dependencies. It is important that
- // on x86/x86-64 it is ecx for performance reasons, since the
- // MacroAssembler will need to plant register swaps if it is not -
- // however the code will still function correctly.
-#if CPU(X86_64)
- static const RegisterID returnValueRegister = X86Registers::eax;
- static const RegisterID cachedResultRegister = X86Registers::eax;
- static const RegisterID firstArgumentRegister = X86Registers::edi;
-
-#if ENABLE(VALUE_PROFILER)
- static const RegisterID bucketCounterRegister = X86Registers::r10;
-#endif
-
- static const RegisterID timeoutCheckRegister = X86Registers::r12;
- 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;
-#elif CPU(X86)
- static const RegisterID returnValueRegister = X86Registers::eax;
- static const RegisterID cachedResultRegister = X86Registers::eax;
- // On x86 we always use fastcall conventions = but on
- // OS X if might make more sense to just use regparm.
- static const RegisterID firstArgumentRegister = X86Registers::ecx;
-
- static const RegisterID bucketCounterRegister = X86Registers::esi;
- static const RegisterID callFrameRegister = X86Registers::edi;
-
- 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;
-#elif CPU(ARM_THUMB2)
- 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;
-
- 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;
-
- static const RegisterID regStackPtr = ARMRegisters::sp;
- static const RegisterID regLink = ARMRegisters::lr;
-
- 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(MIPS)
- static const RegisterID returnValueRegister = MIPSRegisters::v0;
- static const RegisterID cachedResultRegister = MIPSRegisters::v0;
- static const RegisterID firstArgumentRegister = MIPSRegisters::a0;
-
- // regT0 must be v0 for returning a 32-bit value.
- static const RegisterID regT0 = MIPSRegisters::v0;
-
- // regT1 must be v1 for returning a pair of 32-bit value.
- static const RegisterID regT1 = MIPSRegisters::v1;
-
- static const RegisterID regT2 = MIPSRegisters::t4;
-
- // regT3 must be saved in the callee, so use an S register.
- 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 fpRegT3 = MIPSRegisters::f10;
-#elif CPU(SH4)
- static const RegisterID timeoutCheckRegister = SH4Registers::r8;
- 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
+ JSInterfaceJIT(VM* vm, CodeBlock* codeBlock = 0)
+ : CCallHelpers(vm, codeBlock)
+ {
+ }
#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;
+ static const unsigned Int32Tag = static_cast<unsigned>(TagTypeNumber >> 32);
#endif
inline Jump emitLoadJSCell(unsigned virtualRegisterIndex, RegisterID payload);
inline Jump emitLoadInt32(unsigned virtualRegisterIndex, RegisterID dst);
#endif
#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
+ Jump emitJumpIfNotType(RegisterID baseReg, 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);
+
inline Address payloadFor(int index, RegisterID base = callFrameRegister);
inline Address intPayloadFor(int index, RegisterID base = callFrameRegister);
inline Address intTagFor(int index, RegisterID base = callFrameRegister);
};
struct ThunkHelpers {
- static unsigned stringImplFlagsOffset() { return StringImpl::flagsOffset(); }
- static unsigned stringImpl8BitFlag() { return StringImpl::flagIs8Bit(); }
- static unsigned stringImplDataOffset() { return StringImpl::dataOffset(); }
static unsigned jsStringLengthOffset() { return OBJECT_OFFSETOF(JSString, m_length); }
static unsigned jsStringValueOffset() { return OBJECT_OFFSETOF(JSString, m_value); }
};
#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;
}
{
}
+ // 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(JSVALUE64)
}
#endif
+ ALWAYS_INLINE JSInterfaceJIT::Jump JSInterfaceJIT::emitJumpIfNotType(RegisterID baseReg, JSType type)
+ {
+ return branch8(NotEqual, Address(baseReg, JSCell::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
+ }
+
+ ALWAYS_INLINE void JSInterfaceJIT::emitPutImmediateToCallFrameHeader(void* value, JSStack::CallFrameHeaderEntry entry)
+ {
+ 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)));
}
-}
+} // namespace JSC
+
+#endif // ENABLE(JIT)
#endif // JSInterfaceJIT_h
projects / apple / javascriptcore.git / blobdiff