#include "config.h"
#if ENABLE(JIT)
#include "JIT.h"
#include "BasicBlockLocation.h"
#include "CopiedSpaceInlines.h"
#include "Debugger.h"
#include "Exception.h"
#include "Heap.h"
#include "JITInlines.h"
#include "JSArray.h"
#include "JSCell.h"
#include "JSFunction.h"
#include "JSNameScope.h"
#include "JSPropertyNameEnumerator.h"
#include "LinkBuffer.h"
#include "MaxFrameExtentForSlowPathCall.h"
#include "RepatchBuffer.h"
#include "SlowPathCall.h"
#include "TypeLocation.h"
#include "TypeProfilerLog.h"
#include "VirtualRegister.h"
namespace JSC {
#if USE(JSVALUE64)
JIT::CodeRef JIT::privateCompileCTINativeCall(VM* vm, NativeFunction)
{
return vm->getCTIStub(nativeCallGenerator);
}
void JIT::emit_op_mov(Instruction* currentInstruction)
{
int dst = currentInstruction[1].u.operand;
int src = currentInstruction[2].u.operand;
emitGetVirtualRegister(src, regT0);
emitPutVirtualRegister(dst);
}
void JIT::emit_op_end(Instruction* currentInstruction)
{
RELEASE_ASSERT(returnValueGPR != callFrameRegister);
emitGetVirtualRegister(currentInstruction[1].u.operand, returnValueGPR);
emitFunctionEpilogue();
ret();
}
void JIT::emit_op_jmp(Instruction* currentInstruction)
{
unsigned target = currentInstruction[1].u.operand;
addJump(jump(), target);
}
void JIT::emit_op_new_object(Instruction* currentInstruction)
{
Structure* structure = currentInstruction[3].u.objectAllocationProfile->structure();
size_t allocationSize = JSFinalObject::allocationSize(structure->inlineCapacity());
MarkedAllocator* allocator = &m_vm->heap.allocatorForObjectWithoutDestructor(allocationSize);
RegisterID resultReg = regT0;
RegisterID allocatorReg = regT1;
RegisterID scratchReg = regT2;
move(TrustedImmPtr(allocator), allocatorReg);
emitAllocateJSObject(allocatorReg, TrustedImmPtr(structure), resultReg, scratchReg);
emitPutVirtualRegister(currentInstruction[1].u.operand);
}
void JIT::emitSlow_op_new_object(Instruction* currentInstruction, Vector<SlowCaseEntry>::iterator& iter)
{
linkSlowCase(iter);
int dst = currentInstruction[1].u.operand;
Structure* structure = currentInstruction[3].u.objectAllocationProfile->structure();
callOperation(operationNewObject, structure);
emitStoreCell(dst, returnValueGPR);
}
void JIT::emit_op_check_has_instance(Instruction* currentInstruction)
{
int baseVal = currentInstruction[3].u.operand;
emitGetVirtualRegister(baseVal, regT0);
emitJumpSlowCaseIfNotJSCell(regT0, baseVal);
addSlowCase(branchTest8(Zero, Address(regT0, JSCell::typeInfoFlagsOffset()), TrustedImm32(ImplementsDefaultHasInstance)));
}
void JIT::emit_op_instanceof(Instruction* currentInstruction)
{
int dst = currentInstruction[1].u.operand;
int value = currentInstruction[2].u.operand;
int proto = currentInstruction[3].u.operand;
emitGetVirtualRegister(value, regT2);
emitGetVirtualRegister(proto, regT1);
emitJumpSlowCaseIfNotJSCell(regT2, value);
emitJumpSlowCaseIfNotJSCell(regT1, proto);
addSlowCase(emitJumpIfCellNotObject(regT1));
move(TrustedImm64(JSValue::encode(jsBoolean(true))), regT0);
Label loop(this);
emitLoadStructure(regT2, regT2, regT3);
load64(Address(regT2, Structure::prototypeOffset()), regT2);
Jump isInstance = branchPtr(Equal, regT2, regT1);
emitJumpIfJSCell(regT2).linkTo(loop, this);
move(TrustedImm64(JSValue::encode(jsBoolean(false))), regT0);
isInstance.link(this);
emitPutVirtualRegister(dst);
}
void JIT::emit_op_is_undefined(Instruction* currentInstruction)
{
int dst = currentInstruction[1].u.operand;
int value = currentInstruction[2].u.operand;
emitGetVirtualRegister(value, regT0);
Jump isCell = emitJumpIfJSCell(regT0);
compare64(Equal, regT0, TrustedImm32(ValueUndefined), regT0);
Jump done = jump();
isCell.link(this);
Jump isMasqueradesAsUndefined = branchTest8(NonZero, Address(regT0, JSCell::typeInfoFlagsOffset()), TrustedImm32(MasqueradesAsUndefined));
move(TrustedImm32(0), regT0);
Jump notMasqueradesAsUndefined = jump();
isMasqueradesAsUndefined.link(this);
emitLoadStructure(regT0, regT1, regT2);
move(TrustedImmPtr(m_codeBlock->globalObject()), regT0);
loadPtr(Address(regT1, Structure::globalObjectOffset()), regT1);
comparePtr(Equal, regT0, regT1, regT0);
notMasqueradesAsUndefined.link(this);
done.link(this);
emitTagAsBoolImmediate(regT0);
emitPutVirtualRegister(dst);
}
void JIT::emit_op_is_boolean(Instruction* currentInstruction)
{
int dst = currentInstruction[1].u.operand;
int value = currentInstruction[2].u.operand;
emitGetVirtualRegister(value, regT0);
xor64(TrustedImm32(static_cast<int32_t>(ValueFalse)), regT0);
test64(Zero, regT0, TrustedImm32(static_cast<int32_t>(~1)), regT0);
emitTagAsBoolImmediate(regT0);
emitPutVirtualRegister(dst);
}
void JIT::emit_op_is_number(Instruction* currentInstruction)
{
int dst = currentInstruction[1].u.operand;
int value = currentInstruction[2].u.operand;
emitGetVirtualRegister(value, regT0);
test64(NonZero, regT0, tagTypeNumberRegister, regT0);
emitTagAsBoolImmediate(regT0);
emitPutVirtualRegister(dst);
}
void JIT::emit_op_is_string(Instruction* currentInstruction)
{
int dst = currentInstruction[1].u.operand;
int value = currentInstruction[2].u.operand;
emitGetVirtualRegister(value, regT0);
Jump isNotCell = emitJumpIfNotJSCell(regT0);
compare8(Equal, Address(regT0, JSCell::typeInfoTypeOffset()), TrustedImm32(StringType), regT0);
emitTagAsBoolImmediate(regT0);
Jump done = jump();
isNotCell.link(this);
move(TrustedImm32(ValueFalse), regT0);
done.link(this);
emitPutVirtualRegister(dst);
}
void JIT::emit_op_is_object(Instruction* currentInstruction)
{
int dst = currentInstruction[1].u.operand;
int value = currentInstruction[2].u.operand;
emitGetVirtualRegister(value, regT0);
Jump isNotCell = emitJumpIfNotJSCell(regT0);
compare8(AboveOrEqual, Address(regT0, JSCell::typeInfoTypeOffset()), TrustedImm32(ObjectType), regT0);
emitTagAsBoolImmediate(regT0);
Jump done = jump();
isNotCell.link(this);
move(TrustedImm32(ValueFalse), regT0);
done.link(this);
emitPutVirtualRegister(dst);
}
void JIT::emit_op_ret(Instruction* currentInstruction)
{
ASSERT(callFrameRegister != regT1);
ASSERT(regT1 != returnValueGPR);
ASSERT(returnValueGPR != callFrameRegister);
emitGetVirtualRegister(currentInstruction[1].u.operand, returnValueGPR);
checkStackPointerAlignment();
emitFunctionEpilogue();
ret();
}
void JIT::emit_op_to_primitive(Instruction* currentInstruction)
{
int dst = currentInstruction[1].u.operand;
int src = currentInstruction[2].u.operand;
emitGetVirtualRegister(src, regT0);
Jump isImm = emitJumpIfNotJSCell(regT0);
addSlowCase(emitJumpIfCellObject(regT0));
isImm.link(this);
if (dst != src)
emitPutVirtualRegister(dst);
}
void JIT::emit_op_strcat(Instruction* currentInstruction)
{
JITSlowPathCall slowPathCall(this, currentInstruction, slow_path_strcat);
slowPathCall.call();
}
void JIT::emit_op_not(Instruction* currentInstruction)
{
emitGetVirtualRegister(currentInstruction[2].u.operand, regT0);
xor64(TrustedImm32(static_cast<int32_t>(ValueFalse)), regT0);
addSlowCase(branchTestPtr(NonZero, regT0, TrustedImm32(static_cast<int32_t>(~1))));
xor64(TrustedImm32(static_cast<int32_t>(ValueTrue)), regT0);
emitPutVirtualRegister(currentInstruction[1].u.operand);
}
void JIT::emit_op_jfalse(Instruction* currentInstruction)
{
unsigned target = currentInstruction[2].u.operand;
emitGetVirtualRegister(currentInstruction[1].u.operand, regT0);
addJump(branch64(Equal, regT0, TrustedImm64(JSValue::encode(jsNumber(0)))), target);
Jump isNonZero = emitJumpIfImmediateInteger(regT0);
addJump(branch64(Equal, regT0, TrustedImm64(JSValue::encode(jsBoolean(false)))), target);
addSlowCase(branch64(NotEqual, regT0, TrustedImm64(JSValue::encode(jsBoolean(true)))));
isNonZero.link(this);
}
void JIT::emit_op_jeq_null(Instruction* currentInstruction)
{
int src = currentInstruction[1].u.operand;
unsigned target = currentInstruction[2].u.operand;
emitGetVirtualRegister(src, regT0);
Jump isImmediate = emitJumpIfNotJSCell(regT0);
Jump isNotMasqueradesAsUndefined = branchTest8(Zero, Address(regT0, JSCell::typeInfoFlagsOffset()), TrustedImm32(MasqueradesAsUndefined));
emitLoadStructure(regT0, regT2, regT1);
move(TrustedImmPtr(m_codeBlock->globalObject()), regT0);
addJump(branchPtr(Equal, Address(regT2, Structure::globalObjectOffset()), regT0), target);
Jump masqueradesGlobalObjectIsForeign = jump();
isImmediate.link(this);
and64(TrustedImm32(~TagBitUndefined), regT0);
addJump(branch64(Equal, regT0, TrustedImm64(JSValue::encode(jsNull()))), target);
isNotMasqueradesAsUndefined.link(this);
masqueradesGlobalObjectIsForeign.link(this);
};
void JIT::emit_op_jneq_null(Instruction* currentInstruction)
{
int src = currentInstruction[1].u.operand;
unsigned target = currentInstruction[2].u.operand;
emitGetVirtualRegister(src, regT0);
Jump isImmediate = emitJumpIfNotJSCell(regT0);
addJump(branchTest8(Zero, Address(regT0, JSCell::typeInfoFlagsOffset()), TrustedImm32(MasqueradesAsUndefined)), target);
emitLoadStructure(regT0, regT2, regT1);
move(TrustedImmPtr(m_codeBlock->globalObject()), regT0);
addJump(branchPtr(NotEqual, Address(regT2, Structure::globalObjectOffset()), regT0), target);
Jump wasNotImmediate = jump();
isImmediate.link(this);
and64(TrustedImm32(~TagBitUndefined), regT0);
addJump(branch64(NotEqual, regT0, TrustedImm64(JSValue::encode(jsNull()))), target);
wasNotImmediate.link(this);
}
void JIT::emit_op_jneq_ptr(Instruction* currentInstruction)
{
int src = currentInstruction[1].u.operand;
Special::Pointer ptr = currentInstruction[2].u.specialPointer;
unsigned target = currentInstruction[3].u.operand;
emitGetVirtualRegister(src, regT0);
addJump(branchPtr(NotEqual, regT0, TrustedImmPtr(actualPointerFor(m_codeBlock, ptr))), target);
}
void JIT::emit_op_eq(Instruction* currentInstruction)
{
emitGetVirtualRegisters(currentInstruction[2].u.operand, regT0, currentInstruction[3].u.operand, regT1);
emitJumpSlowCaseIfNotImmediateIntegers(regT0, regT1, regT2);
compare32(Equal, regT1, regT0, regT0);
emitTagAsBoolImmediate(regT0);
emitPutVirtualRegister(currentInstruction[1].u.operand);
}
void JIT::emit_op_jtrue(Instruction* currentInstruction)
{
unsigned target = currentInstruction[2].u.operand;
emitGetVirtualRegister(currentInstruction[1].u.operand, regT0);
Jump isZero = branch64(Equal, regT0, TrustedImm64(JSValue::encode(jsNumber(0))));
addJump(emitJumpIfImmediateInteger(regT0), target);
addJump(branch64(Equal, regT0, TrustedImm64(JSValue::encode(jsBoolean(true)))), target);
addSlowCase(branch64(NotEqual, regT0, TrustedImm64(JSValue::encode(jsBoolean(false)))));
isZero.link(this);
}
void JIT::emit_op_neq(Instruction* currentInstruction)
{
emitGetVirtualRegisters(currentInstruction[2].u.operand, regT0, currentInstruction[3].u.operand, regT1);
emitJumpSlowCaseIfNotImmediateIntegers(regT0, regT1, regT2);
compare32(NotEqual, regT1, regT0, regT0);
emitTagAsBoolImmediate(regT0);
emitPutVirtualRegister(currentInstruction[1].u.operand);
}
void JIT::emit_op_bitxor(Instruction* currentInstruction)
{
emitGetVirtualRegisters(currentInstruction[2].u.operand, regT0, currentInstruction[3].u.operand, regT1);
emitJumpSlowCaseIfNotImmediateIntegers(regT0, regT1, regT2);
xor64(regT1, regT0);
emitFastArithReTagImmediate(regT0, regT0);
emitPutVirtualRegister(currentInstruction[1].u.operand);
}
void JIT::emit_op_bitor(Instruction* currentInstruction)
{
emitGetVirtualRegisters(currentInstruction[2].u.operand, regT0, currentInstruction[3].u.operand, regT1);
emitJumpSlowCaseIfNotImmediateIntegers(regT0, regT1, regT2);
or64(regT1, regT0);
emitPutVirtualRegister(currentInstruction[1].u.operand);
}
void JIT::emit_op_throw(Instruction* currentInstruction)
{
ASSERT(regT0 == returnValueGPR);
emitGetVirtualRegister(currentInstruction[1].u.operand, regT0);
callOperationNoExceptionCheck(operationThrow, regT0);
jumpToExceptionHandler();
}
void JIT::emit_op_push_with_scope(Instruction* currentInstruction)
{
int dst = currentInstruction[1].u.operand;
emitGetVirtualRegister(currentInstruction[2].u.operand, regT0);
callOperation(operationPushWithScope, dst, regT0);
}
void JIT::emit_op_pop_scope(Instruction* currentInstruction)
{
int scope = currentInstruction[1].u.operand;
callOperation(operationPopScope, scope);
}
void JIT::compileOpStrictEq(Instruction* currentInstruction, CompileOpStrictEqType type)
{
int dst = currentInstruction[1].u.operand;
int src1 = currentInstruction[2].u.operand;
int src2 = currentInstruction[3].u.operand;
emitGetVirtualRegisters(src1, regT0, src2, regT1);
move(regT0, regT2);
or64(regT1, regT2);
addSlowCase(emitJumpIfJSCell(regT2));
Jump leftOK = emitJumpIfImmediateInteger(regT0);
addSlowCase(emitJumpIfImmediateNumber(regT0));
leftOK.link(this);
Jump rightOK = emitJumpIfImmediateInteger(regT1);
addSlowCase(emitJumpIfImmediateNumber(regT1));
rightOK.link(this);
if (type == OpStrictEq)
compare64(Equal, regT1, regT0, regT0);
else
compare64(NotEqual, regT1, regT0, regT0);
emitTagAsBoolImmediate(regT0);
emitPutVirtualRegister(dst);
}
void JIT::emit_op_stricteq(Instruction* currentInstruction)
{
compileOpStrictEq(currentInstruction, OpStrictEq);
}
void JIT::emit_op_nstricteq(Instruction* currentInstruction)
{
compileOpStrictEq(currentInstruction, OpNStrictEq);
}
void JIT::emit_op_to_number(Instruction* currentInstruction)
{
int srcVReg = currentInstruction[2].u.operand;
emitGetVirtualRegister(srcVReg, regT0);
addSlowCase(emitJumpIfNotImmediateNumber(regT0));
emitPutVirtualRegister(currentInstruction[1].u.operand);
}
void JIT::emit_op_to_string(Instruction* currentInstruction)
{
int srcVReg = currentInstruction[2].u.operand;
emitGetVirtualRegister(srcVReg, regT0);
addSlowCase(emitJumpIfNotJSCell(regT0));
addSlowCase(branch8(NotEqual, Address(regT0, JSCell::typeInfoTypeOffset()), TrustedImm32(StringType)));
emitPutVirtualRegister(currentInstruction[1].u.operand);
}
void JIT::emit_op_push_name_scope(Instruction* currentInstruction)
{
int dst = currentInstruction[1].u.operand;
emitGetVirtualRegister(currentInstruction[2].u.operand, regT0);
if (currentInstruction[4].u.operand == JSNameScope::CatchScope) {
callOperation(operationPushCatchScope, dst, jsCast<SymbolTable*>(getConstantOperand(currentInstruction[3].u.operand)), regT0);
return;
}
RELEASE_ASSERT(currentInstruction[4].u.operand == JSNameScope::FunctionNameScope);
callOperation(operationPushFunctionNameScope, dst, jsCast<SymbolTable*>(getConstantOperand(currentInstruction[3].u.operand)), regT0);
}
void JIT::emit_op_catch(Instruction* currentInstruction)
{
move(TrustedImm64(TagTypeNumber), tagTypeNumberRegister);
move(TrustedImm64(TagMask), tagMaskRegister);
move(TrustedImmPtr(m_vm), regT3);
load64(Address(regT3, VM::callFrameForThrowOffset()), callFrameRegister);
load64(Address(regT3, VM::vmEntryFrameForThrowOffset()), regT0);
store64(regT0, Address(regT3, VM::topVMEntryFrameOffset()));
addPtr(TrustedImm32(stackPointerOffsetFor(codeBlock()) * sizeof(Register)), callFrameRegister, stackPointerRegister);
load64(Address(regT3, VM::exceptionOffset()), regT0);
store64(TrustedImm64(JSValue::encode(JSValue())), Address(regT3, VM::exceptionOffset()));
emitPutVirtualRegister(currentInstruction[1].u.operand);
load64(Address(regT0, Exception::valueOffset()), regT0);
emitPutVirtualRegister(currentInstruction[2].u.operand);
}
void JIT::emit_op_switch_imm(Instruction* currentInstruction)
{
size_t tableIndex = currentInstruction[1].u.operand;
unsigned defaultOffset = currentInstruction[2].u.operand;
unsigned scrutinee = currentInstruction[3].u.operand;
SimpleJumpTable* jumpTable = &m_codeBlock->switchJumpTable(tableIndex);
m_switches.append(SwitchRecord(jumpTable, m_bytecodeOffset, defaultOffset, SwitchRecord::Immediate));
jumpTable->ensureCTITable();
emitGetVirtualRegister(scrutinee, regT0);
callOperation(operationSwitchImmWithUnknownKeyType, regT0, tableIndex);
jump(returnValueGPR);
}
void JIT::emit_op_switch_char(Instruction* currentInstruction)
{
size_t tableIndex = currentInstruction[1].u.operand;
unsigned defaultOffset = currentInstruction[2].u.operand;
unsigned scrutinee = currentInstruction[3].u.operand;
SimpleJumpTable* jumpTable = &m_codeBlock->switchJumpTable(tableIndex);
m_switches.append(SwitchRecord(jumpTable, m_bytecodeOffset, defaultOffset, SwitchRecord::Character));
jumpTable->ensureCTITable();
emitGetVirtualRegister(scrutinee, regT0);
callOperation(operationSwitchCharWithUnknownKeyType, regT0, tableIndex);
jump(returnValueGPR);
}
void JIT::emit_op_switch_string(Instruction* currentInstruction)
{
size_t tableIndex = currentInstruction[1].u.operand;
unsigned defaultOffset = currentInstruction[2].u.operand;
unsigned scrutinee = currentInstruction[3].u.operand;
StringJumpTable* jumpTable = &m_codeBlock->stringSwitchJumpTable(tableIndex);
m_switches.append(SwitchRecord(jumpTable, m_bytecodeOffset, defaultOffset));
emitGetVirtualRegister(scrutinee, regT0);
callOperation(operationSwitchStringWithUnknownKeyType, regT0, tableIndex);
jump(returnValueGPR);
}
void JIT::emit_op_throw_static_error(Instruction* currentInstruction)
{
move(TrustedImm64(JSValue::encode(m_codeBlock->getConstant(currentInstruction[1].u.operand))), regT0);
callOperation(operationThrowStaticError, regT0, currentInstruction[2].u.operand);
}
void JIT::emit_op_debug(Instruction* currentInstruction)
{
load32(codeBlock()->debuggerRequestsAddress(), regT0);
Jump noDebuggerRequests = branchTest32(Zero, regT0);
callOperation(operationDebug, currentInstruction[1].u.operand);
noDebuggerRequests.link(this);
}
void JIT::emit_op_eq_null(Instruction* currentInstruction)
{
int dst = currentInstruction[1].u.operand;
int src1 = currentInstruction[2].u.operand;
emitGetVirtualRegister(src1, regT0);
Jump isImmediate = emitJumpIfNotJSCell(regT0);
Jump isMasqueradesAsUndefined = branchTest8(NonZero, Address(regT0, JSCell::typeInfoFlagsOffset()), TrustedImm32(MasqueradesAsUndefined));
move(TrustedImm32(0), regT0);
Jump wasNotMasqueradesAsUndefined = jump();
isMasqueradesAsUndefined.link(this);
emitLoadStructure(regT0, regT2, regT1);
move(TrustedImmPtr(m_codeBlock->globalObject()), regT0);
loadPtr(Address(regT2, Structure::globalObjectOffset()), regT2);
comparePtr(Equal, regT0, regT2, regT0);
Jump wasNotImmediate = jump();
isImmediate.link(this);
and64(TrustedImm32(~TagBitUndefined), regT0);
compare64(Equal, regT0, TrustedImm32(ValueNull), regT0);
wasNotImmediate.link(this);
wasNotMasqueradesAsUndefined.link(this);
emitTagAsBoolImmediate(regT0);
emitPutVirtualRegister(dst);
}
void JIT::emit_op_neq_null(Instruction* currentInstruction)
{
int dst = currentInstruction[1].u.operand;
int src1 = currentInstruction[2].u.operand;
emitGetVirtualRegister(src1, regT0);
Jump isImmediate = emitJumpIfNotJSCell(regT0);
Jump isMasqueradesAsUndefined = branchTest8(NonZero, Address(regT0, JSCell::typeInfoFlagsOffset()), TrustedImm32(MasqueradesAsUndefined));
move(TrustedImm32(1), regT0);
Jump wasNotMasqueradesAsUndefined = jump();
isMasqueradesAsUndefined.link(this);
emitLoadStructure(regT0, regT2, regT1);
move(TrustedImmPtr(m_codeBlock->globalObject()), regT0);
loadPtr(Address(regT2, Structure::globalObjectOffset()), regT2);
comparePtr(NotEqual, regT0, regT2, regT0);
Jump wasNotImmediate = jump();
isImmediate.link(this);
and64(TrustedImm32(~TagBitUndefined), regT0);
compare64(NotEqual, regT0, TrustedImm32(ValueNull), regT0);
wasNotImmediate.link(this);
wasNotMasqueradesAsUndefined.link(this);
emitTagAsBoolImmediate(regT0);
emitPutVirtualRegister(dst);
}
void JIT::emit_op_enter(Instruction*)
{
size_t count = m_codeBlock->m_numVars;
for (size_t j = 0; j < count; ++j)
emitInitRegister(virtualRegisterForLocal(j).offset());
emitWriteBarrier(m_codeBlock->ownerExecutable());
emitEnterOptimizationCheck();
}
void JIT::emit_op_create_lexical_environment(Instruction* currentInstruction)
{
int dst = currentInstruction[1].u.operand;
int scope = currentInstruction[2].u.operand;
emitGetVirtualRegister(scope, regT0);
callOperation(operationCreateActivation, regT0);
emitStoreCell(dst, returnValueGPR);
emitStoreCell(scope, returnValueGPR);
}
void JIT::emit_op_get_scope(Instruction* currentInstruction)
{
int dst = currentInstruction[1].u.operand;
emitGetFromCallFrameHeaderPtr(JSStack::Callee, regT0);
loadPtr(Address(regT0, JSFunction::offsetOfScopeChain()), regT0);
emitStoreCell(dst, regT0);
}
void JIT::emit_op_to_this(Instruction* currentInstruction)
{
WriteBarrierBase<Structure>* cachedStructure = ¤tInstruction[2].u.structure;
emitGetVirtualRegister(currentInstruction[1].u.operand, regT1);
emitJumpSlowCaseIfNotJSCell(regT1);
addSlowCase(branch8(NotEqual, Address(regT1, JSCell::typeInfoTypeOffset()), TrustedImm32(FinalObjectType)));
loadPtr(cachedStructure, regT2);
addSlowCase(branchTestPtr(Zero, regT2));
load32(Address(regT2, Structure::structureIDOffset()), regT2);
addSlowCase(branch32(NotEqual, Address(regT1, JSCell::structureIDOffset()), regT2));
}
void JIT::emit_op_create_this(Instruction* currentInstruction)
{
int callee = currentInstruction[2].u.operand;
WriteBarrierBase<JSCell>* cachedFunction = ¤tInstruction[4].u.jsCell;
RegisterID calleeReg = regT0;
RegisterID rareDataReg = regT4;
RegisterID resultReg = regT0;
RegisterID allocatorReg = regT1;
RegisterID structureReg = regT2;
RegisterID cachedFunctionReg = regT4;
RegisterID scratchReg = regT3;
emitGetVirtualRegister(callee, calleeReg);
loadPtr(Address(calleeReg, JSFunction::offsetOfRareData()), rareDataReg);
addSlowCase(branchTestPtr(Zero, rareDataReg));
loadPtr(Address(rareDataReg, FunctionRareData::offsetOfAllocationProfile() + ObjectAllocationProfile::offsetOfAllocator()), allocatorReg);
loadPtr(Address(rareDataReg, FunctionRareData::offsetOfAllocationProfile() + ObjectAllocationProfile::offsetOfStructure()), structureReg);
addSlowCase(branchTestPtr(Zero, allocatorReg));
loadPtr(cachedFunction, cachedFunctionReg);
Jump hasSeenMultipleCallees = branchPtr(Equal, cachedFunctionReg, TrustedImmPtr(JSCell::seenMultipleCalleeObjects()));
addSlowCase(branchPtr(NotEqual, calleeReg, cachedFunctionReg));
hasSeenMultipleCallees.link(this);
emitAllocateJSObject(allocatorReg, structureReg, resultReg, scratchReg);
emitPutVirtualRegister(currentInstruction[1].u.operand);
}
void JIT::emitSlow_op_create_this(Instruction* currentInstruction, Vector<SlowCaseEntry>::iterator& iter)
{
linkSlowCase(iter); linkSlowCase(iter); linkSlowCase(iter); linkSlowCase(iter);
JITSlowPathCall slowPathCall(this, currentInstruction, slow_path_create_this);
slowPathCall.call();
}
void JIT::emit_op_check_tdz(Instruction* currentInstruction)
{
emitGetVirtualRegister(currentInstruction[1].u.operand, regT0);
addSlowCase(branchTest64(Zero, regT0));
}
void JIT::emitSlow_op_check_tdz(Instruction* currentInstruction, Vector<SlowCaseEntry>::iterator& iter)
{
linkSlowCase(iter);
JITSlowPathCall slowPathCall(this, currentInstruction, slow_path_throw_tdz_error);
slowPathCall.call();
}
void JIT::emit_op_profile_will_call(Instruction* currentInstruction)
{
Jump profilerDone = branchTestPtr(Zero, AbsoluteAddress(m_vm->enabledProfilerAddress()));
emitGetVirtualRegister(currentInstruction[1].u.operand, regT0);
callOperation(operationProfileWillCall, regT0);
profilerDone.link(this);
}
void JIT::emit_op_profile_did_call(Instruction* currentInstruction)
{
Jump profilerDone = branchTestPtr(Zero, AbsoluteAddress(m_vm->enabledProfilerAddress()));
emitGetVirtualRegister(currentInstruction[1].u.operand, regT0);
callOperation(operationProfileDidCall, regT0);
profilerDone.link(this);
}
void JIT::emitSlow_op_to_this(Instruction* currentInstruction, Vector<SlowCaseEntry>::iterator& iter)
{
linkSlowCase(iter);
linkSlowCase(iter);
linkSlowCase(iter);
linkSlowCase(iter);
JITSlowPathCall slowPathCall(this, currentInstruction, slow_path_to_this);
slowPathCall.call();
}
void JIT::emitSlow_op_to_primitive(Instruction* currentInstruction, Vector<SlowCaseEntry>::iterator& iter)
{
linkSlowCase(iter);
JITSlowPathCall slowPathCall(this, currentInstruction, slow_path_to_primitive);
slowPathCall.call();
}
void JIT::emitSlow_op_not(Instruction* currentInstruction, Vector<SlowCaseEntry>::iterator& iter)
{
linkSlowCase(iter);
JITSlowPathCall slowPathCall(this, currentInstruction, slow_path_not);
slowPathCall.call();
}
void JIT::emitSlow_op_jfalse(Instruction* currentInstruction, Vector<SlowCaseEntry>::iterator& iter)
{
linkSlowCase(iter);
callOperation(operationConvertJSValueToBoolean, regT0);
emitJumpSlowToHot(branchTest32(Zero, returnValueGPR), currentInstruction[2].u.operand); }
void JIT::emitSlow_op_jtrue(Instruction* currentInstruction, Vector<SlowCaseEntry>::iterator& iter)
{
linkSlowCase(iter);
callOperation(operationConvertJSValueToBoolean, regT0);
emitJumpSlowToHot(branchTest32(NonZero, returnValueGPR), currentInstruction[2].u.operand);
}
void JIT::emitSlow_op_bitxor(Instruction* currentInstruction, Vector<SlowCaseEntry>::iterator& iter)
{
linkSlowCase(iter);
JITSlowPathCall slowPathCall(this, currentInstruction, slow_path_bitxor);
slowPathCall.call();
}
void JIT::emitSlow_op_bitor(Instruction* currentInstruction, Vector<SlowCaseEntry>::iterator& iter)
{
linkSlowCase(iter);
JITSlowPathCall slowPathCall(this, currentInstruction, slow_path_bitor);
slowPathCall.call();
}
void JIT::emitSlow_op_eq(Instruction* currentInstruction, Vector<SlowCaseEntry>::iterator& iter)
{
linkSlowCase(iter);
callOperation(operationCompareEq, regT0, regT1);
emitTagAsBoolImmediate(returnValueGPR);
emitPutVirtualRegister(currentInstruction[1].u.operand, returnValueGPR);
}
void JIT::emitSlow_op_neq(Instruction* currentInstruction, Vector<SlowCaseEntry>::iterator& iter)
{
linkSlowCase(iter);
callOperation(operationCompareEq, regT0, regT1);
xor32(TrustedImm32(0x1), regT0);
emitTagAsBoolImmediate(returnValueGPR);
emitPutVirtualRegister(currentInstruction[1].u.operand, returnValueGPR);
}
void JIT::emitSlow_op_stricteq(Instruction* currentInstruction, Vector<SlowCaseEntry>::iterator& iter)
{
linkSlowCase(iter);
linkSlowCase(iter);
linkSlowCase(iter);
JITSlowPathCall slowPathCall(this, currentInstruction, slow_path_stricteq);
slowPathCall.call();
}
void JIT::emitSlow_op_nstricteq(Instruction* currentInstruction, Vector<SlowCaseEntry>::iterator& iter)
{
linkSlowCase(iter);
linkSlowCase(iter);
linkSlowCase(iter);
JITSlowPathCall slowPathCall(this, currentInstruction, slow_path_nstricteq);
slowPathCall.call();
}
void JIT::emitSlow_op_check_has_instance(Instruction* currentInstruction, Vector<SlowCaseEntry>::iterator& iter)
{
int dst = currentInstruction[1].u.operand;
int value = currentInstruction[2].u.operand;
int baseVal = currentInstruction[3].u.operand;
linkSlowCaseIfNotJSCell(iter, baseVal);
linkSlowCase(iter);
emitGetVirtualRegister(value, regT0);
emitGetVirtualRegister(baseVal, regT1);
callOperation(operationCheckHasInstance, dst, regT0, regT1);
emitJumpSlowToHot(jump(), currentInstruction[4].u.operand);
}
void JIT::emitSlow_op_instanceof(Instruction* currentInstruction, Vector<SlowCaseEntry>::iterator& iter)
{
int dst = currentInstruction[1].u.operand;
int value = currentInstruction[2].u.operand;
int proto = currentInstruction[3].u.operand;
linkSlowCaseIfNotJSCell(iter, value);
linkSlowCaseIfNotJSCell(iter, proto);
linkSlowCase(iter);
emitGetVirtualRegister(value, regT0);
emitGetVirtualRegister(proto, regT1);
callOperation(operationInstanceOf, dst, regT0, regT1);
}
void JIT::emitSlow_op_to_number(Instruction* currentInstruction, Vector<SlowCaseEntry>::iterator& iter)
{
linkSlowCase(iter);
JITSlowPathCall slowPathCall(this, currentInstruction, slow_path_to_number);
slowPathCall.call();
}
void JIT::emitSlow_op_to_string(Instruction* currentInstruction, Vector<SlowCaseEntry>::iterator& iter)
{
linkSlowCase(iter); linkSlowCase(iter);
JITSlowPathCall slowPathCall(this, currentInstruction, slow_path_to_string);
slowPathCall.call();
}
#endif // USE(JSVALUE64)
void JIT::emit_op_loop_hint(Instruction*)
{
if (canBeOptimized()) {
addSlowCase(branchAdd32(PositiveOrZero, TrustedImm32(Options::executionCounterIncrementForLoop()),
AbsoluteAddress(m_codeBlock->addressOfJITExecuteCounter())));
}
if (m_vm->watchdog && m_vm->watchdog->isEnabled())
addSlowCase(branchTest8(NonZero, AbsoluteAddress(m_vm->watchdog->timerDidFireAddress())));
}
void JIT::emitSlow_op_loop_hint(Instruction*, Vector<SlowCaseEntry>::iterator& iter)
{
#if ENABLE(DFG_JIT)
if (canBeOptimized()) {
linkSlowCase(iter);
callOperation(operationOptimize, m_bytecodeOffset);
Jump noOptimizedEntry = branchTestPtr(Zero, returnValueGPR);
if (!ASSERT_DISABLED) {
Jump ok = branchPtr(MacroAssembler::Above, regT0, TrustedImmPtr(bitwise_cast<void*>(static_cast<intptr_t>(1000))));
abortWithReason(JITUnreasonableLoopHintJumpTarget);
ok.link(this);
}
jump(returnValueGPR);
noOptimizedEntry.link(this);
emitJumpSlowToHot(jump(), OPCODE_LENGTH(op_loop_hint));
}
#endif
if (m_vm->watchdog && m_vm->watchdog->isEnabled()) {
linkSlowCase(iter);
callOperation(operationHandleWatchdogTimer);
emitJumpSlowToHot(jump(), OPCODE_LENGTH(op_loop_hint));
}
}
void JIT::emit_op_new_regexp(Instruction* currentInstruction)
{
callOperation(operationNewRegexp, currentInstruction[1].u.operand, m_codeBlock->regexp(currentInstruction[2].u.operand));
}
void JIT::emit_op_new_func(Instruction* currentInstruction)
{
Jump lazyJump;
int dst = currentInstruction[1].u.operand;
#if USE(JSVALUE64)
emitGetVirtualRegister(currentInstruction[2].u.operand, regT0);
#else
emitLoadPayload(currentInstruction[2].u.operand, regT0);
#endif
FunctionExecutable* funcExec = m_codeBlock->functionDecl(currentInstruction[3].u.operand);
callOperation(operationNewFunction, dst, regT0, funcExec);
}
void JIT::emit_op_new_func_exp(Instruction* currentInstruction)
{
Jump notUndefinedScope;
int dst = currentInstruction[1].u.operand;
#if USE(JSVALUE64)
emitGetVirtualRegister(currentInstruction[2].u.operand, regT0);
notUndefinedScope = branch64(NotEqual, regT0, TrustedImm64(JSValue::encode(jsUndefined())));
store64(TrustedImm64(JSValue::encode(jsUndefined())), Address(callFrameRegister, sizeof(Register) * dst));
#else
emitLoadPayload(currentInstruction[2].u.operand, regT0);
notUndefinedScope = branch32(NotEqual, tagFor(currentInstruction[2].u.operand), TrustedImm32(JSValue::UndefinedTag));
emitStore(dst, jsUndefined());
#endif
Jump done = jump();
notUndefinedScope.link(this);
FunctionExecutable* funcExpr = m_codeBlock->functionExpr(currentInstruction[3].u.operand);
callOperation(operationNewFunction, dst, regT0, funcExpr);
done.link(this);
}
void JIT::emit_op_new_array(Instruction* currentInstruction)
{
int dst = currentInstruction[1].u.operand;
int valuesIndex = currentInstruction[2].u.operand;
int size = currentInstruction[3].u.operand;
addPtr(TrustedImm32(valuesIndex * sizeof(Register)), callFrameRegister, regT0);
callOperation(operationNewArrayWithProfile, dst,
currentInstruction[4].u.arrayAllocationProfile, regT0, size);
}
void JIT::emit_op_new_array_with_size(Instruction* currentInstruction)
{
int dst = currentInstruction[1].u.operand;
int sizeIndex = currentInstruction[2].u.operand;
#if USE(JSVALUE64)
emitGetVirtualRegister(sizeIndex, regT0);
callOperation(operationNewArrayWithSizeAndProfile, dst,
currentInstruction[3].u.arrayAllocationProfile, regT0);
#else
emitLoad(sizeIndex, regT1, regT0);
callOperation(operationNewArrayWithSizeAndProfile, dst,
currentInstruction[3].u.arrayAllocationProfile, regT1, regT0);
#endif
}
void JIT::emit_op_new_array_buffer(Instruction* currentInstruction)
{
int dst = currentInstruction[1].u.operand;
int valuesIndex = currentInstruction[2].u.operand;
int size = currentInstruction[3].u.operand;
const JSValue* values = codeBlock()->constantBuffer(valuesIndex);
callOperation(operationNewArrayBufferWithProfile, dst, currentInstruction[4].u.arrayAllocationProfile, values, size);
}
#if USE(JSVALUE64)
void JIT::emit_op_has_structure_property(Instruction* currentInstruction)
{
int dst = currentInstruction[1].u.operand;
int base = currentInstruction[2].u.operand;
int enumerator = currentInstruction[4].u.operand;
emitGetVirtualRegister(base, regT0);
emitGetVirtualRegister(enumerator, regT1);
emitJumpSlowCaseIfNotJSCell(regT0, base);
load32(Address(regT0, JSCell::structureIDOffset()), regT0);
addSlowCase(branch32(NotEqual, regT0, Address(regT1, JSPropertyNameEnumerator::cachedStructureIDOffset())));
move(TrustedImm64(JSValue::encode(jsBoolean(true))), regT0);
emitPutVirtualRegister(dst);
}
void JIT::privateCompileHasIndexedProperty(ByValInfo* byValInfo, ReturnAddressPtr returnAddress, JITArrayMode arrayMode)
{
Instruction* currentInstruction = m_codeBlock->instructions().begin() + byValInfo->bytecodeIndex;
PatchableJump badType;
JumpList slowCases = emitLoadForArrayMode(currentInstruction, arrayMode, badType);
move(TrustedImm64(JSValue::encode(jsBoolean(true))), regT0);
Jump done = jump();
LinkBuffer patchBuffer(*m_vm, *this, m_codeBlock);
patchBuffer.link(badType, CodeLocationLabel(MacroAssemblerCodePtr::createFromExecutableAddress(returnAddress.value())).labelAtOffset(byValInfo->returnAddressToSlowPath));
patchBuffer.link(slowCases, CodeLocationLabel(MacroAssemblerCodePtr::createFromExecutableAddress(returnAddress.value())).labelAtOffset(byValInfo->returnAddressToSlowPath));
patchBuffer.link(done, byValInfo->badTypeJump.labelAtOffset(byValInfo->badTypeJumpToDone));
byValInfo->stubRoutine = FINALIZE_CODE_FOR_STUB(
m_codeBlock, patchBuffer,
("Baseline has_indexed_property stub for %s, return point %p", toCString(*m_codeBlock).data(), returnAddress.value()));
RepatchBuffer repatchBuffer(m_codeBlock);
repatchBuffer.relink(byValInfo->badTypeJump, CodeLocationLabel(byValInfo->stubRoutine->code().code()));
repatchBuffer.relinkCallerToFunction(returnAddress, FunctionPtr(operationHasIndexedPropertyGeneric));
}
void JIT::emit_op_has_indexed_property(Instruction* currentInstruction)
{
int dst = currentInstruction[1].u.operand;
int base = currentInstruction[2].u.operand;
int property = currentInstruction[3].u.operand;
ArrayProfile* profile = currentInstruction[4].u.arrayProfile;
emitGetVirtualRegisters(base, regT0, property, regT1);
zeroExtend32ToPtr(regT1, regT1);
emitJumpSlowCaseIfNotJSCell(regT0, base);
emitArrayProfilingSiteWithCell(regT0, regT2, profile);
and32(TrustedImm32(IndexingShapeMask), regT2);
JITArrayMode mode = chooseArrayMode(profile);
PatchableJump badType;
JumpList slowCases = emitLoadForArrayMode(currentInstruction, mode, badType);
move(TrustedImm64(JSValue::encode(jsBoolean(true))), regT0);
addSlowCase(badType);
addSlowCase(slowCases);
Label done = label();
emitPutVirtualRegister(dst);
m_byValCompilationInfo.append(ByValCompilationInfo(m_bytecodeOffset, badType, mode, done));
}
void JIT::emitSlow_op_has_indexed_property(Instruction* currentInstruction, Vector<SlowCaseEntry>::iterator& iter)
{
int dst = currentInstruction[1].u.operand;
int base = currentInstruction[2].u.operand;
int property = currentInstruction[3].u.operand;
ArrayProfile* profile = currentInstruction[4].u.arrayProfile;
linkSlowCaseIfNotJSCell(iter, base); linkSlowCase(iter); linkSlowCase(iter); linkSlowCase(iter);
Label slowPath = label();
emitGetVirtualRegister(base, regT0);
emitGetVirtualRegister(property, regT1);
Call call = callOperation(operationHasIndexedPropertyDefault, dst, regT0, regT1, profile);
m_byValCompilationInfo[m_byValInstructionIndex].slowPathTarget = slowPath;
m_byValCompilationInfo[m_byValInstructionIndex].returnAddress = call;
m_byValInstructionIndex++;
}
void JIT::emit_op_get_direct_pname(Instruction* currentInstruction)
{
int dst = currentInstruction[1].u.operand;
int base = currentInstruction[2].u.operand;
int index = currentInstruction[4].u.operand;
int enumerator = currentInstruction[5].u.operand;
emitGetVirtualRegister(base, regT0);
emitJumpSlowCaseIfNotJSCell(regT0, base);
emitGetVirtualRegister(enumerator, regT2);
load32(Address(regT0, JSCell::structureIDOffset()), regT1);
addSlowCase(branch32(NotEqual, regT1, Address(regT2, JSPropertyNameEnumerator::cachedStructureIDOffset())));
emitGetVirtualRegister(index, regT1);
Jump outOfLineAccess = branch32(AboveOrEqual, regT1, Address(regT2, JSPropertyNameEnumerator::cachedInlineCapacityOffset()));
addPtr(TrustedImm32(JSObject::offsetOfInlineStorage()), regT0);
signExtend32ToPtr(regT1, regT1);
load64(BaseIndex(regT0, regT1, TimesEight), regT0);
Jump done = jump();
outOfLineAccess.link(this);
loadPtr(Address(regT0, JSObject::butterflyOffset()), regT0);
sub32(Address(regT2, JSPropertyNameEnumerator::cachedInlineCapacityOffset()), regT1);
neg32(regT1);
signExtend32ToPtr(regT1, regT1);
int32_t offsetOfFirstProperty = static_cast<int32_t>(offsetInButterfly(firstOutOfLineOffset)) * sizeof(EncodedJSValue);
load64(BaseIndex(regT0, regT1, TimesEight, offsetOfFirstProperty), regT0);
done.link(this);
emitValueProfilingSite();
emitPutVirtualRegister(dst, regT0);
}
void JIT::emitSlow_op_get_direct_pname(Instruction* currentInstruction, Vector<SlowCaseEntry>::iterator& iter)
{
int base = currentInstruction[2].u.operand;
linkSlowCaseIfNotJSCell(iter, base);
linkSlowCase(iter);
JITSlowPathCall slowPathCall(this, currentInstruction, slow_path_get_direct_pname);
slowPathCall.call();
}
void JIT::emit_op_enumerator_structure_pname(Instruction* currentInstruction)
{
int dst = currentInstruction[1].u.operand;
int enumerator = currentInstruction[2].u.operand;
int index = currentInstruction[3].u.operand;
emitGetVirtualRegister(index, regT0);
emitGetVirtualRegister(enumerator, regT1);
Jump inBounds = branch32(Below, regT0, Address(regT1, JSPropertyNameEnumerator::endStructurePropertyIndexOffset()));
move(TrustedImm64(JSValue::encode(jsNull())), regT0);
Jump done = jump();
inBounds.link(this);
loadPtr(Address(regT1, JSPropertyNameEnumerator::cachedPropertyNamesVectorOffset()), regT1);
signExtend32ToPtr(regT0, regT0);
load64(BaseIndex(regT1, regT0, TimesEight), regT0);
done.link(this);
emitPutVirtualRegister(dst);
}
void JIT::emit_op_enumerator_generic_pname(Instruction* currentInstruction)
{
int dst = currentInstruction[1].u.operand;
int enumerator = currentInstruction[2].u.operand;
int index = currentInstruction[3].u.operand;
emitGetVirtualRegister(index, regT0);
emitGetVirtualRegister(enumerator, regT1);
Jump inBounds = branch32(Below, regT0, Address(regT1, JSPropertyNameEnumerator::endGenericPropertyIndexOffset()));
move(TrustedImm64(JSValue::encode(jsNull())), regT0);
Jump done = jump();
inBounds.link(this);
loadPtr(Address(regT1, JSPropertyNameEnumerator::cachedPropertyNamesVectorOffset()), regT1);
signExtend32ToPtr(regT0, regT0);
load64(BaseIndex(regT1, regT0, TimesEight), regT0);
done.link(this);
emitPutVirtualRegister(dst);
}
void JIT::emit_op_profile_type(Instruction* currentInstruction)
{
TypeLocation* cachedTypeLocation = currentInstruction[2].u.location;
int valueToProfile = currentInstruction[1].u.operand;
emitGetVirtualRegister(valueToProfile, regT0);
JumpList jumpToEnd;
if (cachedTypeLocation->m_lastSeenType == TypeUndefined)
jumpToEnd.append(branch64(Equal, regT0, TrustedImm64(JSValue::encode(jsUndefined()))));
else if (cachedTypeLocation->m_lastSeenType == TypeNull)
jumpToEnd.append(branch64(Equal, regT0, TrustedImm64(JSValue::encode(jsNull()))));
else if (cachedTypeLocation->m_lastSeenType == TypeBoolean) {
move(regT0, regT1);
and64(TrustedImm32(~1), regT1);
jumpToEnd.append(branch64(Equal, regT1, TrustedImm64(ValueFalse)));
} else if (cachedTypeLocation->m_lastSeenType == TypeMachineInt)
jumpToEnd.append(emitJumpIfImmediateInteger(regT0));
else if (cachedTypeLocation->m_lastSeenType == TypeNumber)
jumpToEnd.append(emitJumpIfImmediateNumber(regT0));
else if (cachedTypeLocation->m_lastSeenType == TypeString) {
Jump isNotCell = emitJumpIfNotJSCell(regT0);
jumpToEnd.append(branch8(Equal, Address(regT0, JSCell::typeInfoTypeOffset()), TrustedImm32(StringType)));
isNotCell.link(this);
}
TypeProfilerLog* cachedTypeProfilerLog = m_vm->typeProfilerLog();
move(TrustedImmPtr(cachedTypeProfilerLog), regT2);
loadPtr(Address(regT2, TypeProfilerLog::currentLogEntryOffset()), regT1);
store64(regT0, Address(regT1, TypeProfilerLog::LogEntry::valueOffset()));
Jump notCell = emitJumpIfNotJSCell(regT0);
load32(Address(regT0, JSCell::structureIDOffset()), regT0);
store32(regT0, Address(regT1, TypeProfilerLog::LogEntry::structureIDOffset()));
Jump skipIsCell = jump();
notCell.link(this);
store32(TrustedImm32(0), Address(regT1, TypeProfilerLog::LogEntry::structureIDOffset()));
skipIsCell.link(this);
move(TrustedImmPtr(cachedTypeLocation), regT0);
store64(regT0, Address(regT1, TypeProfilerLog::LogEntry::locationOffset()));
addPtr(TrustedImm32(sizeof(TypeProfilerLog::LogEntry)), regT1);
store64(regT1, Address(regT2, TypeProfilerLog::currentLogEntryOffset()));
Jump skipClearLog = branchPtr(NotEqual, regT1, TrustedImmPtr(cachedTypeProfilerLog->logEndPtr()));
callOperation(operationProcessTypeProfilerLog);
skipClearLog.link(this);
jumpToEnd.link(this);
}
#endif // USE(JSVALUE64)
void JIT::emit_op_get_enumerable_length(Instruction* currentInstruction)
{
JITSlowPathCall slowPathCall(this, currentInstruction, slow_path_get_enumerable_length);
slowPathCall.call();
}
void JIT::emitSlow_op_has_structure_property(Instruction* currentInstruction, Vector<SlowCaseEntry>::iterator& iter)
{
linkSlowCase(iter);
linkSlowCase(iter);
JITSlowPathCall slowPathCall(this, currentInstruction, slow_path_has_structure_property);
slowPathCall.call();
}
void JIT::emit_op_has_generic_property(Instruction* currentInstruction)
{
JITSlowPathCall slowPathCall(this, currentInstruction, slow_path_has_generic_property);
slowPathCall.call();
}
void JIT::emit_op_get_property_enumerator(Instruction* currentInstruction)
{
JITSlowPathCall slowPathCall(this, currentInstruction, slow_path_get_property_enumerator);
slowPathCall.call();
}
void JIT::emit_op_to_index_string(Instruction* currentInstruction)
{
JITSlowPathCall slowPathCall(this, currentInstruction, slow_path_to_index_string);
slowPathCall.call();
}
void JIT::emit_op_profile_control_flow(Instruction* currentInstruction)
{
BasicBlockLocation* basicBlockLocation = currentInstruction[1].u.basicBlockLocation;
if (!basicBlockLocation->hasExecuted())
basicBlockLocation->emitExecuteCode(*this, regT1);
}
void JIT::emit_op_create_direct_arguments(Instruction* currentInstruction)
{
JITSlowPathCall slowPathCall(this, currentInstruction, slow_path_create_direct_arguments);
slowPathCall.call();
}
void JIT::emit_op_create_scoped_arguments(Instruction* currentInstruction)
{
JITSlowPathCall slowPathCall(this, currentInstruction, slow_path_create_scoped_arguments);
slowPathCall.call();
}
void JIT::emit_op_create_out_of_band_arguments(Instruction* currentInstruction)
{
JITSlowPathCall slowPathCall(this, currentInstruction, slow_path_create_out_of_band_arguments);
slowPathCall.call();
}
}
#endif // ENABLE(JIT)