diff options
Diffstat (limited to 'JavaScriptCore/jit/JIT.h')
| -rw-r--r-- | JavaScriptCore/jit/JIT.h | 196 |
1 files changed, 71 insertions, 125 deletions
diff --git a/JavaScriptCore/jit/JIT.h b/JavaScriptCore/jit/JIT.h index bfbb1ee..a7e8890 100644 --- a/JavaScriptCore/jit/JIT.h +++ b/JavaScriptCore/jit/JIT.h @@ -26,8 +26,6 @@ #ifndef JIT_h #define JIT_h -#include <wtf/Platform.h> - #if ENABLE(JIT) // We've run into some problems where changing the size of the class JIT leads to @@ -42,15 +40,10 @@ #include "CodeBlock.h" #include "Interpreter.h" -#include "JITCode.h" -#include "JITStubs.h" +#include "JSInterfaceJIT.h" #include "Opcode.h" -#include "RegisterFile.h" -#include "MacroAssembler.h" #include "Profiler.h" #include <bytecode/SamplingTool.h> -#include <wtf/AlwaysInline.h> -#include <wtf/Vector.h> namespace JSC { @@ -172,106 +165,13 @@ namespace JSC { void ctiPatchCallByReturnAddress(CodeBlock* codeblock, ReturnAddressPtr returnAddress, MacroAssemblerCodePtr newCalleeFunction); void ctiPatchCallByReturnAddress(CodeBlock* codeblock, ReturnAddressPtr returnAddress, FunctionPtr newCalleeFunction); - class JIT : private MacroAssembler { + class JIT : private JSInterfaceJIT { friend class JITStubCall; using MacroAssembler::Jump; using MacroAssembler::JumpList; using MacroAssembler::Label; - // 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; - - 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; -#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 timeoutCheckRegister = 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; -#elif CPU(ARM_THUMB2) - static const RegisterID returnValueRegister = ARMRegisters::r0; - static const RegisterID cachedResultRegister = ARMRegisters::r0; - static const RegisterID firstArgumentRegister = ARMRegisters::r0; - - 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; -#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; -#else - #error "JIT not supported on this platform." -#endif - static const int patchGetByIdDefaultStructure = -1; // Magic number - initial offset cannot be representable as a signed 8bit value, or the X86Assembler // will compress the displacement, and we may not be able to fit a patched offset. @@ -283,32 +183,32 @@ namespace JSC { return JIT(globalData, codeBlock).privateCompile(); } - static void compileGetByIdProto(JSGlobalData* globalData, CallFrame* callFrame, CodeBlock* codeBlock, StructureStubInfo* stubInfo, Structure* structure, Structure* prototypeStructure, size_t cachedOffset, ReturnAddressPtr returnAddress) + static void compileGetByIdProto(JSGlobalData* globalData, CallFrame* callFrame, CodeBlock* codeBlock, StructureStubInfo* stubInfo, Structure* structure, Structure* prototypeStructure, const Identifier& ident, const PropertySlot& slot, size_t cachedOffset, ReturnAddressPtr returnAddress) { JIT jit(globalData, codeBlock); - jit.privateCompileGetByIdProto(stubInfo, structure, prototypeStructure, cachedOffset, returnAddress, callFrame); + jit.privateCompileGetByIdProto(stubInfo, structure, prototypeStructure, ident, slot, cachedOffset, returnAddress, callFrame); } - static void compileGetByIdSelfList(JSGlobalData* globalData, CodeBlock* codeBlock, StructureStubInfo* stubInfo, PolymorphicAccessStructureList* polymorphicStructures, int currentIndex, Structure* structure, size_t cachedOffset) + static void compileGetByIdSelfList(JSGlobalData* globalData, CodeBlock* codeBlock, StructureStubInfo* stubInfo, PolymorphicAccessStructureList* polymorphicStructures, int currentIndex, Structure* structure, const Identifier& ident, const PropertySlot& slot, size_t cachedOffset) { JIT jit(globalData, codeBlock); - jit.privateCompileGetByIdSelfList(stubInfo, polymorphicStructures, currentIndex, structure, cachedOffset); + jit.privateCompileGetByIdSelfList(stubInfo, polymorphicStructures, currentIndex, structure, ident, slot, cachedOffset); } - static void compileGetByIdProtoList(JSGlobalData* globalData, CallFrame* callFrame, CodeBlock* codeBlock, StructureStubInfo* stubInfo, PolymorphicAccessStructureList* prototypeStructureList, int currentIndex, Structure* structure, Structure* prototypeStructure, size_t cachedOffset) + static void compileGetByIdProtoList(JSGlobalData* globalData, CallFrame* callFrame, CodeBlock* codeBlock, StructureStubInfo* stubInfo, PolymorphicAccessStructureList* prototypeStructureList, int currentIndex, Structure* structure, Structure* prototypeStructure, const Identifier& ident, const PropertySlot& slot, size_t cachedOffset) { JIT jit(globalData, codeBlock); - jit.privateCompileGetByIdProtoList(stubInfo, prototypeStructureList, currentIndex, structure, prototypeStructure, cachedOffset, callFrame); + jit.privateCompileGetByIdProtoList(stubInfo, prototypeStructureList, currentIndex, structure, prototypeStructure, ident, slot, cachedOffset, callFrame); } - static void compileGetByIdChainList(JSGlobalData* globalData, CallFrame* callFrame, CodeBlock* codeBlock, StructureStubInfo* stubInfo, PolymorphicAccessStructureList* prototypeStructureList, int currentIndex, Structure* structure, StructureChain* chain, size_t count, size_t cachedOffset) + static void compileGetByIdChainList(JSGlobalData* globalData, CallFrame* callFrame, CodeBlock* codeBlock, StructureStubInfo* stubInfo, PolymorphicAccessStructureList* prototypeStructureList, int currentIndex, Structure* structure, StructureChain* chain, size_t count, const Identifier& ident, const PropertySlot& slot, size_t cachedOffset) { JIT jit(globalData, codeBlock); - jit.privateCompileGetByIdChainList(stubInfo, prototypeStructureList, currentIndex, structure, chain, count, cachedOffset, callFrame); + jit.privateCompileGetByIdChainList(stubInfo, prototypeStructureList, currentIndex, structure, chain, count, ident, slot, cachedOffset, callFrame); } - static void compileGetByIdChain(JSGlobalData* globalData, CallFrame* callFrame, CodeBlock* codeBlock, StructureStubInfo* stubInfo, Structure* structure, StructureChain* chain, size_t count, size_t cachedOffset, ReturnAddressPtr returnAddress) + static void compileGetByIdChain(JSGlobalData* globalData, CallFrame* callFrame, CodeBlock* codeBlock, StructureStubInfo* stubInfo, Structure* structure, StructureChain* chain, size_t count, const Identifier& ident, const PropertySlot& slot, size_t cachedOffset, ReturnAddressPtr returnAddress) { JIT jit(globalData, codeBlock); - jit.privateCompileGetByIdChain(stubInfo, structure, chain, count, cachedOffset, returnAddress, callFrame); + jit.privateCompileGetByIdChain(stubInfo, structure, chain, count, ident, slot, cachedOffset, returnAddress, callFrame); } static void compilePutByIdTransition(JSGlobalData* globalData, CodeBlock* codeBlock, StructureStubInfo* stubInfo, Structure* oldStructure, Structure* newStructure, size_t cachedOffset, StructureChain* chain, ReturnAddressPtr returnAddress) @@ -354,11 +254,11 @@ namespace JSC { void privateCompileLinkPass(); void privateCompileSlowCases(); JITCode privateCompile(); - void privateCompileGetByIdProto(StructureStubInfo*, Structure*, Structure* prototypeStructure, size_t cachedOffset, ReturnAddressPtr returnAddress, CallFrame* callFrame); - void privateCompileGetByIdSelfList(StructureStubInfo*, PolymorphicAccessStructureList*, int, Structure*, size_t cachedOffset); - void privateCompileGetByIdProtoList(StructureStubInfo*, PolymorphicAccessStructureList*, int, Structure*, Structure* prototypeStructure, size_t cachedOffset, CallFrame* callFrame); - void privateCompileGetByIdChainList(StructureStubInfo*, PolymorphicAccessStructureList*, int, Structure*, StructureChain* chain, size_t count, size_t cachedOffset, CallFrame* callFrame); - void privateCompileGetByIdChain(StructureStubInfo*, Structure*, StructureChain*, size_t count, size_t cachedOffset, ReturnAddressPtr returnAddress, CallFrame* callFrame); + void privateCompileGetByIdProto(StructureStubInfo*, Structure*, Structure* prototypeStructure, const Identifier&, const PropertySlot&, size_t cachedOffset, ReturnAddressPtr returnAddress, CallFrame* callFrame); + void privateCompileGetByIdSelfList(StructureStubInfo*, PolymorphicAccessStructureList*, int, Structure*, const Identifier&, const PropertySlot&, size_t cachedOffset); + void privateCompileGetByIdProtoList(StructureStubInfo*, PolymorphicAccessStructureList*, int, Structure*, Structure* prototypeStructure, const Identifier&, const PropertySlot&, size_t cachedOffset, CallFrame* callFrame); + void privateCompileGetByIdChainList(StructureStubInfo*, PolymorphicAccessStructureList*, int, Structure*, StructureChain* chain, size_t count, const Identifier&, const PropertySlot&, size_t cachedOffset, CallFrame* callFrame); + void privateCompileGetByIdChain(StructureStubInfo*, Structure*, StructureChain*, size_t count, const Identifier&, const PropertySlot&, size_t cachedOffset, ReturnAddressPtr returnAddress, CallFrame* callFrame); void privateCompilePutByIdTransition(StructureStubInfo*, Structure*, Structure*, size_t cachedOffset, StructureChain*, ReturnAddressPtr returnAddress); void privateCompileCTIMachineTrampolines(RefPtr<ExecutablePool>* executablePool, JSGlobalData* data, TrampolineStructure *trampolines); @@ -385,14 +285,9 @@ namespace JSC { void emitLoadDouble(unsigned index, FPRegisterID value); void emitLoadInt32ToDouble(unsigned index, FPRegisterID value); - Address addressFor(unsigned index, RegisterID base = callFrameRegister); - void testPrototype(Structure*, JumpList& failureCases); #if USE(JSVALUE32_64) - Address tagFor(unsigned index, RegisterID base = callFrameRegister); - Address payloadFor(unsigned index, RegisterID base = callFrameRegister); - bool getOperandConstantImmediateInt(unsigned op1, unsigned op2, unsigned& op, int32_t& constant); void emitLoadTag(unsigned index, RegisterID tag); @@ -529,8 +424,6 @@ namespace JSC { void emitJumpSlowCaseIfNotJSCell(RegisterID); void emitJumpSlowCaseIfNotJSCell(RegisterID, int VReg); #if USE(JSVALUE64) - JIT::Jump emitJumpIfImmediateNumber(RegisterID); - JIT::Jump emitJumpIfNotImmediateNumber(RegisterID); #else JIT::Jump emitJumpIfImmediateNumber(RegisterID reg) { @@ -686,6 +579,48 @@ namespace JSC { // sequencePutById static const int sequencePutByIdInstructionSpace = 28; static const int sequencePutByIdConstantSpace = 3; +#elif CPU(MIPS) +#if WTF_MIPS_ISA(1) + static const int patchOffsetPutByIdStructure = 16; + static const int patchOffsetPutByIdExternalLoad = 48; + static const int patchLengthPutByIdExternalLoad = 20; + static const int patchOffsetPutByIdPropertyMapOffset = 68; + static const int patchOffsetGetByIdStructure = 16; + static const int patchOffsetGetByIdBranchToSlowCase = 48; + static const int patchOffsetGetByIdExternalLoad = 48; + static const int patchLengthGetByIdExternalLoad = 20; + static const int patchOffsetGetByIdPropertyMapOffset = 68; + static const int patchOffsetGetByIdPutResult = 88; +#if ENABLE(OPCODE_SAMPLING) + #error "OPCODE_SAMPLING is not yet supported" +#else + static const int patchOffsetGetByIdSlowCaseCall = 40; +#endif + static const int patchOffsetOpCallCompareToJump = 32; + static const int patchOffsetMethodCheckProtoObj = 32; + static const int patchOffsetMethodCheckProtoStruct = 56; + static const int patchOffsetMethodCheckPutFunction = 88; +#else // WTF_MIPS_ISA(1) + static const int patchOffsetPutByIdStructure = 12; + static const int patchOffsetPutByIdExternalLoad = 44; + static const int patchLengthPutByIdExternalLoad = 16; + static const int patchOffsetPutByIdPropertyMapOffset = 60; + static const int patchOffsetGetByIdStructure = 12; + static const int patchOffsetGetByIdBranchToSlowCase = 44; + static const int patchOffsetGetByIdExternalLoad = 44; + static const int patchLengthGetByIdExternalLoad = 16; + static const int patchOffsetGetByIdPropertyMapOffset = 60; + static const int patchOffsetGetByIdPutResult = 76; +#if ENABLE(OPCODE_SAMPLING) + #error "OPCODE_SAMPLING is not yet supported" +#else + static const int patchOffsetGetByIdSlowCaseCall = 40; +#endif + static const int patchOffsetOpCallCompareToJump = 32; + static const int patchOffsetMethodCheckProtoObj = 32; + static const int patchOffsetMethodCheckProtoStruct = 52; + static const int patchOffsetMethodCheckPutFunction = 84; +#endif #endif #endif // USE(JSVALUE32_64) @@ -737,6 +672,7 @@ namespace JSC { void emit_op_jneq_ptr(Instruction*); void emit_op_jnless(Instruction*); void emit_op_jless(Instruction*); + void emit_op_jlesseq(Instruction*, bool invert = false); void emit_op_jnlesseq(Instruction*); void emit_op_jsr(Instruction*); void emit_op_jtrue(Instruction*); @@ -759,7 +695,6 @@ namespace JSC { void emit_op_new_func(Instruction*); void emit_op_new_func_exp(Instruction*); void emit_op_new_object(Instruction*); - void emit_op_new_regexp(Instruction*); void emit_op_get_pnames(Instruction*); void emit_op_next_pname(Instruction*); void emit_op_not(Instruction*); @@ -800,6 +735,7 @@ namespace JSC { void emit_op_to_jsnumber(Instruction*); void emit_op_to_primitive(Instruction*); void emit_op_unexpected_load(Instruction*); + void emit_op_urshift(Instruction*); #if ENABLE(JIT_OPTIMIZE_MOD) void softModulo(); #endif @@ -824,6 +760,7 @@ namespace JSC { void emitSlow_op_jfalse(Instruction*, Vector<SlowCaseEntry>::iterator&); void emitSlow_op_jnless(Instruction*, Vector<SlowCaseEntry>::iterator&); void emitSlow_op_jless(Instruction*, Vector<SlowCaseEntry>::iterator&); + void emitSlow_op_jlesseq(Instruction*, Vector<SlowCaseEntry>::iterator&, bool invert = false); void emitSlow_op_jnlesseq(Instruction*, Vector<SlowCaseEntry>::iterator&); void emitSlow_op_jtrue(Instruction*, Vector<SlowCaseEntry>::iterator&); void emitSlow_op_loop_if_less(Instruction*, Vector<SlowCaseEntry>::iterator&); @@ -850,6 +787,11 @@ namespace JSC { void emitSlow_op_sub(Instruction*, Vector<SlowCaseEntry>::iterator&); void emitSlow_op_to_jsnumber(Instruction*, Vector<SlowCaseEntry>::iterator&); void emitSlow_op_to_primitive(Instruction*, Vector<SlowCaseEntry>::iterator&); + void emitSlow_op_urshift(Instruction*, Vector<SlowCaseEntry>::iterator&); + + + void emitRightShift(Instruction*, bool isUnsigned); + void emitRightShiftSlowCase(Instruction*, Vector<SlowCaseEntry>::iterator&, bool isUnsigned); /* These functions are deprecated: Please use JITStubCall instead. */ void emitPutJITStubArg(RegisterID src, unsigned argumentNumber); @@ -872,6 +814,7 @@ namespace JSC { JSValue getConstantOperand(unsigned src); bool isOperandConstantImmediateInt(unsigned src); + bool isOperandConstantImmediateChar(unsigned src); Jump getSlowCase(Vector<SlowCaseEntry>::iterator& iter) { @@ -895,6 +838,9 @@ namespace JSC { void restoreReturnAddressBeforeReturn(RegisterID); void restoreReturnAddressBeforeReturn(Address); + // Loads the character value of a single character string into dst. + void emitLoadCharacterString(RegisterID src, RegisterID dst, JumpList& failures); + void emitTimeoutCheck(); #ifndef NDEBUG void printBytecodeOperandTypes(unsigned src1, unsigned src2); |