/*
- * Copyright (C) 2011, 2012, 2013 Apple Inc. All rights reserved.
+ * Copyright (C) 2011-2015 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
#if ENABLE(DFG_JIT)
-#include "Arguments.h"
#include "ArrayPrototype.h"
+#include "DFGAbstractInterpreterInlines.h"
#include "DFGCallArrayAllocatorSlowPathGenerator.h"
+#include "DFGOperations.h"
#include "DFGSlowPathGenerator.h"
-#include "JSCJSValueInlines.h"
+#include "Debugger.h"
+#include "DirectArguments.h"
+#include "GetterSetter.h"
+#include "JSCInlines.h"
+#include "JSEnvironmentRecord.h"
+#include "JSLexicalEnvironment.h"
+#include "JSPropertyNameEnumerator.h"
#include "ObjectPrototype.h"
+#include "SetupVarargsFrame.h"
+#include "SpillRegistersMode.h"
+#include "TypeProfilerLog.h"
namespace JSC { namespace DFG {
#if USE(JSVALUE64)
-GPRReg SpeculativeJIT::fillInteger(Edge edge, DataFormat& returnFormat)
+void SpeculativeJIT::boxInt52(GPRReg sourceGPR, GPRReg targetGPR, DataFormat format)
{
- ASSERT(!needsTypeCheck(edge, SpecInt32));
+ GPRReg tempGPR;
+ if (sourceGPR == targetGPR)
+ tempGPR = allocate();
+ else
+ tempGPR = targetGPR;
- VirtualRegister virtualRegister = edge->virtualRegister();
- GenerationInfo& info = m_generationInfo[virtualRegister];
-
- if (info.registerFormat() == DataFormatNone) {
- GPRReg gpr = allocate();
-
- if (edge->hasConstant()) {
- m_gprs.retain(gpr, virtualRegister, SpillOrderConstant);
- if (isInt32Constant(edge.node())) {
- m_jit.move(MacroAssembler::Imm32(valueOfInt32Constant(edge.node())), gpr);
- info.fillInteger(*m_stream, gpr);
- returnFormat = DataFormatInteger;
- return gpr;
- }
- if (isNumberConstant(edge.node())) {
- JSValue jsValue = jsNumber(valueOfNumberConstant(edge.node()));
- m_jit.move(MacroAssembler::Imm64(JSValue::encode(jsValue)), gpr);
- } else {
- ASSERT(isJSConstant(edge.node()));
- JSValue jsValue = valueOfJSConstant(edge.node());
- m_jit.move(MacroAssembler::TrustedImm64(JSValue::encode(jsValue)), gpr);
- }
- } else if (info.spillFormat() == DataFormatInteger) {
- m_gprs.retain(gpr, virtualRegister, SpillOrderSpilled);
- m_jit.load32(JITCompiler::payloadFor(virtualRegister), gpr);
- // Tag it, since fillInteger() is used when we want a boxed integer.
- m_jit.or64(GPRInfo::tagTypeNumberRegister, gpr);
- } else {
- RELEASE_ASSERT(info.spillFormat() == DataFormatJS || info.spillFormat() == DataFormatJSInteger);
- m_gprs.retain(gpr, virtualRegister, SpillOrderSpilled);
- m_jit.load64(JITCompiler::addressFor(virtualRegister), gpr);
- }
+ FPRReg fpr = fprAllocate();
- // Since we statically know that we're filling an integer, and values
- // in the JSStack are boxed, this must be DataFormatJSInteger.
- // We will check this with a jitAssert below.
- info.fillJSValue(*m_stream, gpr, DataFormatJSInteger);
- unlock(gpr);
- }
+ if (format == DataFormatInt52)
+ m_jit.rshift64(TrustedImm32(JSValue::int52ShiftAmount), sourceGPR);
+ else
+ ASSERT(format == DataFormatStrictInt52);
- switch (info.registerFormat()) {
- case DataFormatNone:
- // Should have filled, above.
- case DataFormatJSDouble:
- case DataFormatDouble:
- case DataFormatJS:
- case DataFormatCell:
- case DataFormatJSCell:
- case DataFormatBoolean:
- case DataFormatJSBoolean:
- case DataFormatStorage:
- // Should only be calling this function if we know this operand to be integer.
- RELEASE_ASSERT_NOT_REACHED();
-
- case DataFormatJSInteger: {
- GPRReg gpr = info.gpr();
- m_gprs.lock(gpr);
- m_jit.jitAssertIsJSInt32(gpr);
- returnFormat = DataFormatJSInteger;
- return gpr;
- }
-
- case DataFormatInteger: {
- GPRReg gpr = info.gpr();
- m_gprs.lock(gpr);
- m_jit.jitAssertIsInt32(gpr);
- returnFormat = DataFormatInteger;
- return gpr;
- }
-
- default:
- RELEASE_ASSERT_NOT_REACHED();
- return InvalidGPRReg;
- }
+ m_jit.boxInt52(sourceGPR, targetGPR, tempGPR, fpr);
+
+ if (format == DataFormatInt52 && sourceGPR != targetGPR)
+ m_jit.lshift64(TrustedImm32(JSValue::int52ShiftAmount), sourceGPR);
+
+ if (tempGPR != targetGPR)
+ unlock(tempGPR);
+
+ unlock(fpr);
}
GPRReg SpeculativeJIT::fillJSValue(Edge edge)
{
VirtualRegister virtualRegister = edge->virtualRegister();
- GenerationInfo& info = m_generationInfo[virtualRegister];
+ GenerationInfo& info = generationInfoFromVirtualRegister(virtualRegister);
switch (info.registerFormat()) {
case DataFormatNone: {
GPRReg gpr = allocate();
if (edge->hasConstant()) {
- if (isInt32Constant(edge.node())) {
- info.fillJSValue(*m_stream, gpr, DataFormatJSInteger);
- JSValue jsValue = jsNumber(valueOfInt32Constant(edge.node()));
- m_jit.move(MacroAssembler::Imm64(JSValue::encode(jsValue)), gpr);
- } else if (isNumberConstant(edge.node())) {
- info.fillJSValue(*m_stream, gpr, DataFormatJSDouble);
- JSValue jsValue(JSValue::EncodeAsDouble, valueOfNumberConstant(edge.node()));
- m_jit.move(MacroAssembler::Imm64(JSValue::encode(jsValue)), gpr);
- } else {
- ASSERT(isJSConstant(edge.node()));
- JSValue jsValue = valueOfJSConstant(edge.node());
- m_jit.move(MacroAssembler::TrustedImm64(JSValue::encode(jsValue)), gpr);
- info.fillJSValue(*m_stream, gpr, DataFormatJS);
- }
-
+ JSValue jsValue = edge->asJSValue();
+ m_jit.move(MacroAssembler::TrustedImm64(JSValue::encode(jsValue)), gpr);
+ info.fillJSValue(*m_stream, gpr, DataFormatJS);
m_gprs.retain(gpr, virtualRegister, SpillOrderConstant);
} else {
DataFormat spillFormat = info.spillFormat();
m_gprs.retain(gpr, virtualRegister, SpillOrderSpilled);
- if (spillFormat == DataFormatInteger) {
+ switch (spillFormat) {
+ case DataFormatInt32: {
m_jit.load32(JITCompiler::addressFor(virtualRegister), gpr);
m_jit.or64(GPRInfo::tagTypeNumberRegister, gpr);
- spillFormat = DataFormatJSInteger;
- } else {
+ spillFormat = DataFormatJSInt32;
+ break;
+ }
+
+ default:
m_jit.load64(JITCompiler::addressFor(virtualRegister), gpr);
- if (spillFormat == DataFormatDouble) {
- // Need to box the double, since we want a JSValue.
- m_jit.sub64(GPRInfo::tagTypeNumberRegister, gpr);
- spillFormat = DataFormatJSDouble;
- } else
- RELEASE_ASSERT(spillFormat & DataFormatJS);
+ DFG_ASSERT(m_jit.graph(), m_currentNode, spillFormat & DataFormatJS);
+ break;
}
info.fillJSValue(*m_stream, gpr, spillFormat);
}
return gpr;
}
- case DataFormatInteger: {
+ case DataFormatInt32: {
GPRReg gpr = info.gpr();
// If the register has already been locked we need to take a copy.
- // If not, we'll zero extend in place, so mark on the info that this is now type DataFormatInteger, not DataFormatJSInteger.
+ // If not, we'll zero extend in place, so mark on the info that this is now type DataFormatInt32, not DataFormatJSInt32.
if (m_gprs.isLocked(gpr)) {
GPRReg result = allocate();
m_jit.or64(GPRInfo::tagTypeNumberRegister, gpr, result);
}
m_gprs.lock(gpr);
m_jit.or64(GPRInfo::tagTypeNumberRegister, gpr);
- info.fillJSValue(*m_stream, gpr, DataFormatJSInteger);
- return gpr;
- }
-
- case DataFormatDouble: {
- FPRReg fpr = info.fpr();
- GPRReg gpr = boxDouble(fpr);
-
- // Update all info
- info.fillJSValue(*m_stream, gpr, DataFormatJSDouble);
- m_fprs.release(fpr);
- m_gprs.retain(gpr, virtualRegister, SpillOrderJS);
-
+ info.fillJSValue(*m_stream, gpr, DataFormatJSInt32);
return gpr;
}
case DataFormatCell:
// No retag required on JSVALUE64!
case DataFormatJS:
- case DataFormatJSInteger:
+ case DataFormatJSInt32:
case DataFormatJSDouble:
case DataFormatJSCell:
case DataFormatJSBoolean: {
case DataFormatBoolean:
case DataFormatStorage:
+ case DataFormatDouble:
+ case DataFormatInt52:
// this type currently never occurs
- RELEASE_ASSERT_NOT_REACHED();
+ DFG_CRASH(m_jit.graph(), m_currentNode, "Bad data format");
default:
- RELEASE_ASSERT_NOT_REACHED();
+ DFG_CRASH(m_jit.graph(), m_currentNode, "Corrupt data format");
return InvalidGPRReg;
}
}
-void SpeculativeJIT::nonSpeculativeUInt32ToNumber(Node* node)
+void SpeculativeJIT::cachedGetById(CodeOrigin codeOrigin, GPRReg baseGPR, GPRReg resultGPR, unsigned identifierNumber, JITCompiler::Jump slowPathTarget, SpillRegistersMode spillMode)
{
- IntegerOperand op1(this, node->child1());
- FPRTemporary boxer(this);
- GPRTemporary result(this, op1);
-
- JITCompiler::Jump positive = m_jit.branch32(MacroAssembler::GreaterThanOrEqual, op1.gpr(), TrustedImm32(0));
-
- m_jit.convertInt32ToDouble(op1.gpr(), boxer.fpr());
- m_jit.addDouble(JITCompiler::AbsoluteAddress(&AssemblyHelpers::twoToThe32), boxer.fpr());
-
- boxDouble(boxer.fpr(), result.gpr());
-
- JITCompiler::Jump done = m_jit.jump();
-
- positive.link(&m_jit);
+ JITGetByIdGenerator gen(
+ m_jit.codeBlock(), codeOrigin, usedRegisters(), JSValueRegs(baseGPR),
+ JSValueRegs(resultGPR), spillMode);
+ gen.generateFastPath(m_jit);
- m_jit.or64(GPRInfo::tagTypeNumberRegister, op1.gpr(), result.gpr());
+ JITCompiler::JumpList slowCases;
+ if (slowPathTarget.isSet())
+ slowCases.append(slowPathTarget);
+ slowCases.append(gen.slowPathJump());
- done.link(&m_jit);
+ auto slowPath = slowPathCall(
+ slowCases, this, operationGetByIdOptimize, resultGPR, gen.stubInfo(), baseGPR,
+ identifierUID(identifierNumber), spillMode);
- jsValueResult(result.gpr(), m_currentNode);
+ m_jit.addGetById(gen, slowPath.get());
+ addSlowPathGenerator(WTF::move(slowPath));
}
-void SpeculativeJIT::cachedGetById(CodeOrigin codeOrigin, GPRReg baseGPR, GPRReg resultGPR, unsigned identifierNumber, JITCompiler::Jump slowPathTarget, SpillRegistersMode spillMode)
+void SpeculativeJIT::cachedPutById(CodeOrigin codeOrigin, GPRReg baseGPR, GPRReg valueGPR, GPRReg scratchGPR, unsigned identifierNumber, PutKind putKind, JITCompiler::Jump slowPathTarget, SpillRegistersMode spillMode)
{
- JITCompiler::DataLabelPtr structureToCompare;
- JITCompiler::PatchableJump structureCheck = m_jit.patchableBranchPtrWithPatch(JITCompiler::NotEqual, JITCompiler::Address(baseGPR, JSCell::structureOffset()), structureToCompare, JITCompiler::TrustedImmPtr(reinterpret_cast<void*>(unusedPointer)));
-
- JITCompiler::ConvertibleLoadLabel propertyStorageLoad =
- m_jit.convertibleLoadPtr(JITCompiler::Address(baseGPR, JSObject::butterflyOffset()), resultGPR);
- JITCompiler::DataLabelCompact loadWithPatch = m_jit.load64WithCompactAddressOffsetPatch(JITCompiler::Address(resultGPR, 0), resultGPR);
-
- JITCompiler::Label doneLabel = m_jit.label();
+ JITPutByIdGenerator gen(
+ m_jit.codeBlock(), codeOrigin, usedRegisters(), JSValueRegs(baseGPR),
+ JSValueRegs(valueGPR), scratchGPR, spillMode, m_jit.ecmaModeFor(codeOrigin), putKind);
- OwnPtr<SlowPathGenerator> slowPath;
- if (!slowPathTarget.isSet()) {
- slowPath = slowPathCall(
- structureCheck.m_jump, this, operationGetByIdOptimize, resultGPR, baseGPR,
- identifier(identifierNumber), spillMode);
- } else {
- JITCompiler::JumpList slowCases;
- slowCases.append(structureCheck.m_jump);
+ gen.generateFastPath(m_jit);
+
+ JITCompiler::JumpList slowCases;
+ if (slowPathTarget.isSet())
slowCases.append(slowPathTarget);
- slowPath = slowPathCall(
- slowCases, this, operationGetByIdOptimize, resultGPR, baseGPR,
- identifier(identifierNumber), spillMode);
- }
- m_jit.addPropertyAccess(
- PropertyAccessRecord(
- codeOrigin, structureToCompare, structureCheck, propertyStorageLoad, loadWithPatch,
- slowPath.get(), doneLabel, safeCast<int8_t>(baseGPR), safeCast<int8_t>(resultGPR),
- usedRegisters(),
- spillMode == NeedToSpill ? PropertyAccessRecord::RegistersInUse : PropertyAccessRecord::RegistersFlushed));
- addSlowPathGenerator(slowPath.release());
-}
-
-void SpeculativeJIT::cachedPutById(CodeOrigin codeOrigin, GPRReg baseGPR, GPRReg valueGPR, Edge valueUse, GPRReg scratchGPR, unsigned identifierNumber, PutKind putKind, JITCompiler::Jump slowPathTarget)
-{
+ slowCases.append(gen.slowPathJump());
- JITCompiler::DataLabelPtr structureToCompare;
- JITCompiler::PatchableJump structureCheck = m_jit.patchableBranchPtrWithPatch(JITCompiler::NotEqual, JITCompiler::Address(baseGPR, JSCell::structureOffset()), structureToCompare, JITCompiler::TrustedImmPtr(reinterpret_cast<void*>(unusedPointer)));
+ auto slowPath = slowPathCall(
+ slowCases, this, gen.slowPathFunction(), NoResult, gen.stubInfo(), valueGPR, baseGPR,
+ identifierUID(identifierNumber));
- writeBarrier(baseGPR, valueGPR, valueUse, WriteBarrierForPropertyAccess, scratchGPR);
-
- JITCompiler::ConvertibleLoadLabel propertyStorageLoad =
- m_jit.convertibleLoadPtr(JITCompiler::Address(baseGPR, JSObject::butterflyOffset()), scratchGPR);
- JITCompiler::DataLabel32 storeWithPatch = m_jit.store64WithAddressOffsetPatch(valueGPR, JITCompiler::Address(scratchGPR, 0));
-
- JITCompiler::Label doneLabel = m_jit.label();
-
- V_DFGOperation_EJCI optimizedCall;
- if (m_jit.strictModeFor(m_currentNode->codeOrigin)) {
- if (putKind == Direct)
- optimizedCall = operationPutByIdDirectStrictOptimize;
- else
- optimizedCall = operationPutByIdStrictOptimize;
- } else {
- if (putKind == Direct)
- optimizedCall = operationPutByIdDirectNonStrictOptimize;
- else
- optimizedCall = operationPutByIdNonStrictOptimize;
- }
- OwnPtr<SlowPathGenerator> slowPath;
- if (!slowPathTarget.isSet()) {
- slowPath = slowPathCall(
- structureCheck.m_jump, this, optimizedCall, NoResult, valueGPR, baseGPR,
- identifier(identifierNumber));
- } else {
- JITCompiler::JumpList slowCases;
- slowCases.append(structureCheck.m_jump);
- slowCases.append(slowPathTarget);
- slowPath = slowPathCall(
- slowCases, this, optimizedCall, NoResult, valueGPR, baseGPR,
- identifier(identifierNumber));
- }
- RegisterSet currentlyUsedRegisters = usedRegisters();
- currentlyUsedRegisters.clear(scratchGPR);
- ASSERT(currentlyUsedRegisters.get(baseGPR));
- ASSERT(currentlyUsedRegisters.get(valueGPR));
- m_jit.addPropertyAccess(
- PropertyAccessRecord(
- codeOrigin, structureToCompare, structureCheck, propertyStorageLoad,
- JITCompiler::DataLabelCompact(storeWithPatch.label()), slowPath.get(), doneLabel,
- safeCast<int8_t>(baseGPR), safeCast<int8_t>(valueGPR), currentlyUsedRegisters));
- addSlowPathGenerator(slowPath.release());
+ m_jit.addPutById(gen, slowPath.get());
+ addSlowPathGenerator(WTF::move(slowPath));
}
void SpeculativeJIT::nonSpeculativeNonPeepholeCompareNull(Edge operand, bool invert)
JSValueOperand arg(this, operand);
GPRReg argGPR = arg.gpr();
- GPRTemporary result(this, arg);
+ GPRTemporary result(this, Reuse, arg);
GPRReg resultGPR = result.gpr();
JITCompiler::Jump notCell;
JITCompiler::Jump notMasqueradesAsUndefined;
- if (m_jit.graph().globalObjectFor(operand->codeOrigin)->masqueradesAsUndefinedWatchpoint()->isStillValid()) {
+ if (masqueradesAsUndefinedWatchpointIsStillValid()) {
if (!isKnownCell(operand.node()))
- notCell = m_jit.branchTest64(MacroAssembler::NonZero, argGPR, GPRInfo::tagMaskRegister);
+ notCell = m_jit.branchIfNotCell(JSValueRegs(argGPR));
- m_jit.graph().globalObjectFor(operand->codeOrigin)->masqueradesAsUndefinedWatchpoint()->add(speculationWatchpoint());
m_jit.move(invert ? TrustedImm32(1) : TrustedImm32(0), resultGPR);
notMasqueradesAsUndefined = m_jit.jump();
} else {
GPRTemporary localGlobalObject(this);
GPRTemporary remoteGlobalObject(this);
+ GPRTemporary scratch(this);
if (!isKnownCell(operand.node()))
- notCell = m_jit.branchTest64(MacroAssembler::NonZero, argGPR, GPRInfo::tagMaskRegister);
-
- m_jit.loadPtr(JITCompiler::Address(argGPR, JSCell::structureOffset()), resultGPR);
- JITCompiler::Jump isMasqueradesAsUndefined = m_jit.branchTest8(JITCompiler::NonZero, JITCompiler::Address(resultGPR, Structure::typeInfoFlagsOffset()), JITCompiler::TrustedImm32(MasqueradesAsUndefined));
+ notCell = m_jit.branchIfNotCell(JSValueRegs(argGPR));
+
+ JITCompiler::Jump isMasqueradesAsUndefined = m_jit.branchTest8(
+ JITCompiler::NonZero,
+ JITCompiler::Address(argGPR, JSCell::typeInfoFlagsOffset()),
+ JITCompiler::TrustedImm32(MasqueradesAsUndefined));
m_jit.move(invert ? TrustedImm32(1) : TrustedImm32(0), resultGPR);
notMasqueradesAsUndefined = m_jit.jump();
isMasqueradesAsUndefined.link(&m_jit);
GPRReg localGlobalObjectGPR = localGlobalObject.gpr();
GPRReg remoteGlobalObjectGPR = remoteGlobalObject.gpr();
- m_jit.move(JITCompiler::TrustedImmPtr(m_jit.graph().globalObjectFor(operand->codeOrigin)), localGlobalObjectGPR);
+ m_jit.move(JITCompiler::TrustedImmPtr(m_jit.graph().globalObjectFor(m_currentNode->origin.semantic)), localGlobalObjectGPR);
+ m_jit.emitLoadStructure(argGPR, resultGPR, scratch.gpr());
m_jit.loadPtr(JITCompiler::Address(resultGPR, Structure::globalObjectOffset()), remoteGlobalObjectGPR);
m_jit.comparePtr(invert ? JITCompiler::NotEqual : JITCompiler::Equal, localGlobalObjectGPR, remoteGlobalObjectGPR, resultGPR);
}
void SpeculativeJIT::nonSpeculativePeepholeBranchNull(Edge operand, Node* branchNode, bool invert)
{
- BlockIndex taken = branchNode->takenBlockIndex();
- BlockIndex notTaken = branchNode->notTakenBlockIndex();
+ BasicBlock* taken = branchNode->branchData()->taken.block;
+ BasicBlock* notTaken = branchNode->branchData()->notTaken.block;
if (taken == nextBlock()) {
invert = !invert;
- BlockIndex tmp = taken;
+ BasicBlock* tmp = taken;
taken = notTaken;
notTaken = tmp;
}
JSValueOperand arg(this, operand);
GPRReg argGPR = arg.gpr();
- GPRTemporary result(this, arg);
+ GPRTemporary result(this, Reuse, arg);
GPRReg resultGPR = result.gpr();
JITCompiler::Jump notCell;
- if (m_jit.graph().globalObjectFor(operand->codeOrigin)->masqueradesAsUndefinedWatchpoint()->isStillValid()) {
+ if (masqueradesAsUndefinedWatchpointIsStillValid()) {
if (!isKnownCell(operand.node()))
- notCell = m_jit.branchTest64(MacroAssembler::NonZero, argGPR, GPRInfo::tagMaskRegister);
-
- m_jit.graph().globalObjectFor(operand->codeOrigin)->masqueradesAsUndefinedWatchpoint()->add(speculationWatchpoint());
+ notCell = m_jit.branchIfNotCell(JSValueRegs(argGPR));
+
jump(invert ? taken : notTaken, ForceJump);
} else {
GPRTemporary localGlobalObject(this);
GPRTemporary remoteGlobalObject(this);
+ GPRTemporary scratch(this);
if (!isKnownCell(operand.node()))
- notCell = m_jit.branchTest64(MacroAssembler::NonZero, argGPR, GPRInfo::tagMaskRegister);
-
- m_jit.loadPtr(JITCompiler::Address(argGPR, JSCell::structureOffset()), resultGPR);
- branchTest8(JITCompiler::Zero, JITCompiler::Address(resultGPR, Structure::typeInfoFlagsOffset()), JITCompiler::TrustedImm32(MasqueradesAsUndefined), invert ? taken : notTaken);
+ notCell = m_jit.branchIfNotCell(JSValueRegs(argGPR));
+
+ branchTest8(JITCompiler::Zero,
+ JITCompiler::Address(argGPR, JSCell::typeInfoFlagsOffset()),
+ JITCompiler::TrustedImm32(MasqueradesAsUndefined),
+ invert ? taken : notTaken);
GPRReg localGlobalObjectGPR = localGlobalObject.gpr();
GPRReg remoteGlobalObjectGPR = remoteGlobalObject.gpr();
- m_jit.move(TrustedImmPtr(m_jit.graph().globalObjectFor(operand->codeOrigin)), localGlobalObjectGPR);
+ m_jit.move(TrustedImmPtr(m_jit.graph().globalObjectFor(m_currentNode->origin.semantic)), localGlobalObjectGPR);
+ m_jit.emitLoadStructure(argGPR, resultGPR, scratch.gpr());
m_jit.loadPtr(JITCompiler::Address(resultGPR, Structure::globalObjectOffset()), remoteGlobalObjectGPR);
branchPtr(JITCompiler::Equal, localGlobalObjectGPR, remoteGlobalObjectGPR, invert ? notTaken : taken);
}
{
unsigned branchIndexInBlock = detectPeepHoleBranch();
if (branchIndexInBlock != UINT_MAX) {
- Node* branchNode = m_jit.graph().m_blocks[m_block]->at(branchIndexInBlock);
+ Node* branchNode = m_block->at(branchIndexInBlock);
- RELEASE_ASSERT(node->adjustedRefCount() == 1);
+ DFG_ASSERT(m_jit.graph(), node, node->adjustedRefCount() == 1);
nonSpeculativePeepholeBranchNull(operand, branchNode, invert);
return false;
}
-void SpeculativeJIT::nonSpeculativePeepholeBranch(Node* node, Node* branchNode, MacroAssembler::RelationalCondition cond, S_DFGOperation_EJJ helperFunction)
+void SpeculativeJIT::nonSpeculativePeepholeBranch(Node* node, Node* branchNode, MacroAssembler::RelationalCondition cond, S_JITOperation_EJJ helperFunction)
{
- BlockIndex taken = branchNode->takenBlockIndex();
- BlockIndex notTaken = branchNode->notTakenBlockIndex();
+ BasicBlock* taken = branchNode->branchData()->taken.block;
+ BasicBlock* notTaken = branchNode->branchData()->notTaken.block;
JITCompiler::ResultCondition callResultCondition = JITCompiler::NonZero;
if (taken == nextBlock()) {
cond = JITCompiler::invert(cond);
callResultCondition = JITCompiler::Zero;
- BlockIndex tmp = taken;
+ BasicBlock* tmp = taken;
taken = notTaken;
notTaken = tmp;
}
JITCompiler::JumpList slowPath;
if (isKnownNotInteger(node->child1().node()) || isKnownNotInteger(node->child2().node())) {
- GPRResult result(this);
+ GPRFlushedCallResult result(this);
GPRReg resultGPR = result.gpr();
arg1.use();
branchTest32(callResultCondition, resultGPR, taken);
} else {
- GPRTemporary result(this, arg2);
+ GPRTemporary result(this, Reuse, arg2);
GPRReg resultGPR = result.gpr();
arg1.use();
jump(notTaken);
- m_indexInBlock = m_jit.graph().m_blocks[m_block]->size() - 1;
+ m_indexInBlock = m_block->size() - 1;
m_currentNode = branchNode;
}
template<typename JumpType>
class CompareAndBoxBooleanSlowPathGenerator
- : public CallSlowPathGenerator<JumpType, S_DFGOperation_EJJ, GPRReg> {
+ : public CallSlowPathGenerator<JumpType, S_JITOperation_EJJ, GPRReg> {
public:
CompareAndBoxBooleanSlowPathGenerator(
JumpType from, SpeculativeJIT* jit,
- S_DFGOperation_EJJ function, GPRReg result, GPRReg arg1, GPRReg arg2)
- : CallSlowPathGenerator<JumpType, S_DFGOperation_EJJ, GPRReg>(
+ S_JITOperation_EJJ function, GPRReg result, GPRReg arg1, GPRReg arg2)
+ : CallSlowPathGenerator<JumpType, S_JITOperation_EJJ, GPRReg>(
from, jit, function, NeedToSpill, result)
, m_arg1(arg1)
, m_arg2(arg2)
}
protected:
- virtual void generateInternal(SpeculativeJIT* jit)
+ virtual void generateInternal(SpeculativeJIT* jit) override
{
this->setUp(jit);
this->recordCall(jit->callOperation(this->m_function, this->m_result, m_arg1, m_arg2));
GPRReg m_arg2;
};
-void SpeculativeJIT::nonSpeculativeNonPeepholeCompare(Node* node, MacroAssembler::RelationalCondition cond, S_DFGOperation_EJJ helperFunction)
+void SpeculativeJIT::nonSpeculativeNonPeepholeCompare(Node* node, MacroAssembler::RelationalCondition cond, S_JITOperation_EJJ helperFunction)
{
+ ASSERT(node->isBinaryUseKind(UntypedUse));
JSValueOperand arg1(this, node->child1());
JSValueOperand arg2(this, node->child2());
GPRReg arg1GPR = arg1.gpr();
JITCompiler::JumpList slowPath;
if (isKnownNotInteger(node->child1().node()) || isKnownNotInteger(node->child2().node())) {
- GPRResult result(this);
+ GPRFlushedCallResult result(this);
GPRReg resultGPR = result.gpr();
arg1.use();
m_jit.or32(TrustedImm32(ValueFalse), resultGPR);
jsValueResult(resultGPR, m_currentNode, DataFormatJSBoolean, UseChildrenCalledExplicitly);
} else {
- GPRTemporary result(this, arg2);
+ GPRTemporary result(this, Reuse, arg2);
GPRReg resultGPR = result.gpr();
arg1.use();
m_jit.or32(TrustedImm32(ValueFalse), resultGPR);
if (!isKnownInteger(node->child1().node()) || !isKnownInteger(node->child2().node())) {
- addSlowPathGenerator(adoptPtr(
- new CompareAndBoxBooleanSlowPathGenerator<JITCompiler::JumpList>(
- slowPath, this, helperFunction, resultGPR, arg1GPR, arg2GPR)));
+ addSlowPathGenerator(std::make_unique<CompareAndBoxBooleanSlowPathGenerator<JITCompiler::JumpList>>(
+ slowPath, this, helperFunction, resultGPR, arg1GPR, arg2GPR));
}
jsValueResult(resultGPR, m_currentNode, DataFormatJSBoolean, UseChildrenCalledExplicitly);
void SpeculativeJIT::nonSpeculativePeepholeStrictEq(Node* node, Node* branchNode, bool invert)
{
- BlockIndex taken = branchNode->takenBlockIndex();
- BlockIndex notTaken = branchNode->notTakenBlockIndex();
+ BasicBlock* taken = branchNode->branchData()->taken.block;
+ BasicBlock* notTaken = branchNode->branchData()->notTaken.block;
// The branch instruction will branch to the taken block.
// If taken is next, switch taken with notTaken & invert the branch condition so we can fall through.
if (taken == nextBlock()) {
invert = !invert;
- BlockIndex tmp = taken;
+ BasicBlock* tmp = taken;
taken = notTaken;
notTaken = tmp;
}
m_jit.move(JITCompiler::TrustedImm64(JSValue::encode(jsBoolean(!invert))), resultGPR);
- addSlowPathGenerator(
- adoptPtr(
- new CompareAndBoxBooleanSlowPathGenerator<MacroAssembler::JumpList>(
+ addSlowPathGenerator(std::make_unique<CompareAndBoxBooleanSlowPathGenerator<MacroAssembler::JumpList>>(
slowPathCases, this, operationCompareStrictEq, resultGPR, arg1GPR,
- arg2GPR)));
+ arg2GPR));
done.link(&m_jit);
}
jsValueResult(resultGPR, m_currentNode, DataFormatJSBoolean, UseChildrenCalledExplicitly);
}
-void SpeculativeJIT::emitCall(Node* node)
+void SpeculativeJIT::compileMiscStrictEq(Node* node)
{
- if (node->op() != Call)
- RELEASE_ASSERT(node->op() == Construct);
-
- // For constructors, the this argument is not passed but we have to make space
- // for it.
- int dummyThisArgument = node->op() == Call ? 0 : 1;
-
- CallLinkInfo::CallType callType = node->op() == Call ? CallLinkInfo::Call : CallLinkInfo::Construct;
+ JSValueOperand op1(this, node->child1(), ManualOperandSpeculation);
+ JSValueOperand op2(this, node->child2(), ManualOperandSpeculation);
+ GPRTemporary result(this);
- Edge calleeEdge = m_jit.graph().m_varArgChildren[node->firstChild()];
- JSValueOperand callee(this, calleeEdge);
- GPRReg calleeGPR = callee.gpr();
- use(calleeEdge);
+ if (node->child1().useKind() == MiscUse)
+ speculateMisc(node->child1(), op1.jsValueRegs());
+ if (node->child2().useKind() == MiscUse)
+ speculateMisc(node->child2(), op2.jsValueRegs());
- // The call instruction's first child is the function; the subsequent children are the
- // arguments.
- int numPassedArgs = node->numChildren() - 1;
+ m_jit.compare64(JITCompiler::Equal, op1.gpr(), op2.gpr(), result.gpr());
+ m_jit.or32(TrustedImm32(ValueFalse), result.gpr());
+ jsValueResult(result.gpr(), node, DataFormatJSBoolean);
+}
+
+void SpeculativeJIT::emitCall(Node* node)
+{
+ CallLinkInfo::CallType callType;
+ bool isVarargs = false;
+ bool isForwardVarargs = false;
+ switch (node->op()) {
+ case Call:
+ callType = CallLinkInfo::Call;
+ break;
+ case Construct:
+ callType = CallLinkInfo::Construct;
+ break;
+ case CallVarargs:
+ callType = CallLinkInfo::CallVarargs;
+ isVarargs = true;
+ break;
+ case ConstructVarargs:
+ callType = CallLinkInfo::ConstructVarargs;
+ isVarargs = true;
+ break;
+ case CallForwardVarargs:
+ callType = CallLinkInfo::CallVarargs;
+ isForwardVarargs = true;
+ break;
+ case ConstructForwardVarargs:
+ callType = CallLinkInfo::ConstructVarargs;
+ isForwardVarargs = true;
+ break;
+ default:
+ DFG_CRASH(m_jit.graph(), node, "bad node type");
+ break;
+ }
+
+ Edge calleeEdge = m_jit.graph().child(node, 0);
- m_jit.store32(MacroAssembler::TrustedImm32(numPassedArgs + dummyThisArgument), callFramePayloadSlot(JSStack::ArgumentCount));
- m_jit.store64(GPRInfo::callFrameRegister, callFrameSlot(JSStack::CallerFrame));
- m_jit.store64(calleeGPR, callFrameSlot(JSStack::Callee));
+ // Gotta load the arguments somehow. Varargs is trickier.
+ if (isVarargs || isForwardVarargs) {
+ CallVarargsData* data = node->callVarargsData();
+
+ GPRReg resultGPR;
+ unsigned numUsedStackSlots = m_jit.graph().m_nextMachineLocal;
+
+ if (isForwardVarargs) {
+ flushRegisters();
+ use(node->child2());
+
+ GPRReg scratchGPR1;
+ GPRReg scratchGPR2;
+ GPRReg scratchGPR3;
+
+ scratchGPR1 = JITCompiler::selectScratchGPR();
+ scratchGPR2 = JITCompiler::selectScratchGPR(scratchGPR1);
+ scratchGPR3 = JITCompiler::selectScratchGPR(scratchGPR1, scratchGPR2);
+
+ m_jit.move(TrustedImm32(numUsedStackSlots), scratchGPR2);
+ JITCompiler::JumpList slowCase;
+ emitSetupVarargsFrameFastCase(m_jit, scratchGPR2, scratchGPR1, scratchGPR2, scratchGPR3, node->child2()->origin.semantic.inlineCallFrame, data->firstVarArgOffset, slowCase);
+ JITCompiler::Jump done = m_jit.jump();
+ slowCase.link(&m_jit);
+ callOperation(operationThrowStackOverflowForVarargs);
+ m_jit.abortWithReason(DFGVarargsThrowingPathDidNotThrow);
+ done.link(&m_jit);
+ resultGPR = scratchGPR2;
+ } else {
+ GPRReg argumentsGPR;
+ GPRReg scratchGPR1;
+ GPRReg scratchGPR2;
+ GPRReg scratchGPR3;
+
+ auto loadArgumentsGPR = [&] (GPRReg reservedGPR) {
+ if (reservedGPR != InvalidGPRReg)
+ lock(reservedGPR);
+ JSValueOperand arguments(this, node->child2());
+ argumentsGPR = arguments.gpr();
+ if (reservedGPR != InvalidGPRReg)
+ unlock(reservedGPR);
+ flushRegisters();
+
+ scratchGPR1 = JITCompiler::selectScratchGPR(argumentsGPR, reservedGPR);
+ scratchGPR2 = JITCompiler::selectScratchGPR(argumentsGPR, scratchGPR1, reservedGPR);
+ scratchGPR3 = JITCompiler::selectScratchGPR(argumentsGPR, scratchGPR1, scratchGPR2, reservedGPR);
+ };
+
+ loadArgumentsGPR(InvalidGPRReg);
+
+ DFG_ASSERT(m_jit.graph(), node, isFlushed());
+
+ // Right now, arguments is in argumentsGPR and the register file is flushed.
+ callOperation(operationSizeFrameForVarargs, GPRInfo::returnValueGPR, argumentsGPR, numUsedStackSlots, data->firstVarArgOffset);
+
+ // Now we have the argument count of the callee frame, but we've lost the arguments operand.
+ // Reconstruct the arguments operand while preserving the callee frame.
+ loadArgumentsGPR(GPRInfo::returnValueGPR);
+ m_jit.move(TrustedImm32(numUsedStackSlots), scratchGPR1);
+ emitSetVarargsFrame(m_jit, GPRInfo::returnValueGPR, false, scratchGPR1, scratchGPR1);
+ m_jit.addPtr(TrustedImm32(-(sizeof(CallerFrameAndPC) + WTF::roundUpToMultipleOf(stackAlignmentBytes(), 5 * sizeof(void*)))), scratchGPR1, JITCompiler::stackPointerRegister);
+
+ callOperation(operationSetupVarargsFrame, GPRInfo::returnValueGPR, scratchGPR1, argumentsGPR, data->firstVarArgOffset, GPRInfo::returnValueGPR);
+ resultGPR = GPRInfo::returnValueGPR;
+ }
+
+ m_jit.addPtr(TrustedImm32(sizeof(CallerFrameAndPC)), resultGPR, JITCompiler::stackPointerRegister);
+
+ DFG_ASSERT(m_jit.graph(), node, isFlushed());
+
+ // We don't need the arguments array anymore.
+ if (isVarargs)
+ use(node->child2());
+
+ // Now set up the "this" argument.
+ JSValueOperand thisArgument(this, node->child3());
+ GPRReg thisArgumentGPR = thisArgument.gpr();
+ thisArgument.use();
+
+ m_jit.store64(thisArgumentGPR, JITCompiler::calleeArgumentSlot(0));
+ } else {
+ // The call instruction's first child is the function; the subsequent children are the
+ // arguments.
+ int numPassedArgs = node->numChildren() - 1;
+
+ m_jit.store32(MacroAssembler::TrustedImm32(numPassedArgs), JITCompiler::calleeFramePayloadSlot(JSStack::ArgumentCount));
- for (int i = 0; i < numPassedArgs; i++) {
- Edge argEdge = m_jit.graph().m_varArgChildren[node->firstChild() + 1 + i];
- JSValueOperand arg(this, argEdge);
- GPRReg argGPR = arg.gpr();
- use(argEdge);
+ for (int i = 0; i < numPassedArgs; i++) {
+ Edge argEdge = m_jit.graph().m_varArgChildren[node->firstChild() + 1 + i];
+ JSValueOperand arg(this, argEdge);
+ GPRReg argGPR = arg.gpr();
+ use(argEdge);
- m_jit.store64(argGPR, argumentSlot(i + dummyThisArgument));
+ m_jit.store64(argGPR, JITCompiler::calleeArgumentSlot(i));
+ }
}
+ JSValueOperand callee(this, calleeEdge);
+ GPRReg calleeGPR = callee.gpr();
+ callee.use();
+ m_jit.store64(calleeGPR, JITCompiler::calleeFrameSlot(JSStack::Callee));
+
flushRegisters();
- GPRResult result(this);
+ GPRFlushedCallResult result(this);
GPRReg resultGPR = result.gpr();
JITCompiler::DataLabelPtr targetToCheck;
- JITCompiler::JumpList slowPath;
+ JITCompiler::Jump slowPath;
- CallBeginToken token;
- m_jit.beginCall(node->codeOrigin, token);
+ m_jit.emitStoreCodeOrigin(node->origin.semantic);
- m_jit.addPtr(TrustedImm32(m_jit.codeBlock()->m_numCalleeRegisters * sizeof(Register)), GPRInfo::callFrameRegister);
+ CallLinkInfo* callLinkInfo = m_jit.codeBlock()->addCallLinkInfo();
- slowPath.append(m_jit.branchPtrWithPatch(MacroAssembler::NotEqual, calleeGPR, targetToCheck, MacroAssembler::TrustedImmPtr(0)));
+ slowPath = m_jit.branchPtrWithPatch(MacroAssembler::NotEqual, calleeGPR, targetToCheck, MacroAssembler::TrustedImmPtr(0));
- m_jit.loadPtr(MacroAssembler::Address(calleeGPR, OBJECT_OFFSETOF(JSFunction, m_scope)), resultGPR);
- m_jit.store64(resultGPR, MacroAssembler::Address(GPRInfo::callFrameRegister, static_cast<ptrdiff_t>(sizeof(Register)) * JSStack::ScopeChain));
-
- CodeOrigin codeOrigin = m_currentNode->codeOrigin;
JITCompiler::Call fastCall = m_jit.nearCall();
- m_jit.notifyCall(fastCall, codeOrigin, token);
-
+
JITCompiler::Jump done = m_jit.jump();
slowPath.link(&m_jit);
- m_jit.move(calleeGPR, GPRInfo::nonArgGPR0);
- m_jit.prepareForExceptionCheck();
+ m_jit.move(calleeGPR, GPRInfo::regT0); // Callee needs to be in regT0
+ m_jit.move(MacroAssembler::TrustedImmPtr(callLinkInfo), GPRInfo::regT2); // Link info needs to be in regT2
JITCompiler::Call slowCall = m_jit.nearCall();
- m_jit.notifyCall(slowCall, codeOrigin, token);
done.link(&m_jit);
jsValueResult(resultGPR, m_currentNode, DataFormatJS, UseChildrenCalledExplicitly);
- m_jit.addJSCall(fastCall, slowCall, targetToCheck, callType, calleeGPR, m_currentNode->codeOrigin);
+ callLinkInfo->setUpCall(callType, m_currentNode->origin.semantic, calleeGPR);
+ m_jit.addJSCall(fastCall, slowCall, targetToCheck, callLinkInfo);
+
+ // If we were varargs, then after the calls are done, we need to reestablish our stack pointer.
+ if (isVarargs || isForwardVarargs)
+ m_jit.addPtr(TrustedImm32(m_jit.graph().stackPointerOffset() * sizeof(Register)), GPRInfo::callFrameRegister, JITCompiler::stackPointerRegister);
}
+// Clang should allow unreachable [[clang::fallthrough]] in template functions if any template expansion uses it
+// http://llvm.org/bugs/show_bug.cgi?id=18619
+#if COMPILER(CLANG) && defined(__has_warning)
+#pragma clang diagnostic push
+#if __has_warning("-Wimplicit-fallthrough")
+#pragma clang diagnostic ignored "-Wimplicit-fallthrough"
+#endif
+#endif
template<bool strict>
-GPRReg SpeculativeJIT::fillSpeculateIntInternal(Edge edge, DataFormat& returnFormat)
+GPRReg SpeculativeJIT::fillSpeculateInt32Internal(Edge edge, DataFormat& returnFormat)
{
-#if DFG_ENABLE(DEBUG_VERBOSE)
- dataLogF("SpecInt@%d ", edge->index());
-#endif
AbstractValue& value = m_state.forNode(edge);
SpeculatedType type = value.m_type;
ASSERT(edge.useKind() != KnownInt32Use || !(value.m_type & ~SpecInt32));
- value.filter(SpecInt32);
+
+ m_interpreter.filter(value, SpecInt32);
+ if (value.isClear()) {
+ terminateSpeculativeExecution(Uncountable, JSValueRegs(), 0);
+ returnFormat = DataFormatInt32;
+ return allocate();
+ }
+
VirtualRegister virtualRegister = edge->virtualRegister();
- GenerationInfo& info = m_generationInfo[virtualRegister];
+ GenerationInfo& info = generationInfoFromVirtualRegister(virtualRegister);
switch (info.registerFormat()) {
case DataFormatNone: {
- if ((edge->hasConstant() && !isInt32Constant(edge.node())) || info.spillFormat() == DataFormatDouble) {
- terminateSpeculativeExecution(Uncountable, JSValueRegs(), 0);
- returnFormat = DataFormatInteger;
- return allocate();
- }
-
GPRReg gpr = allocate();
if (edge->hasConstant()) {
m_gprs.retain(gpr, virtualRegister, SpillOrderConstant);
- ASSERT(isInt32Constant(edge.node()));
- m_jit.move(MacroAssembler::Imm32(valueOfInt32Constant(edge.node())), gpr);
- info.fillInteger(*m_stream, gpr);
- returnFormat = DataFormatInteger;
+ ASSERT(edge->isInt32Constant());
+ m_jit.move(MacroAssembler::Imm32(edge->asInt32()), gpr);
+ info.fillInt32(*m_stream, gpr);
+ returnFormat = DataFormatInt32;
return gpr;
}
DataFormat spillFormat = info.spillFormat();
- RELEASE_ASSERT((spillFormat & DataFormatJS) || spillFormat == DataFormatInteger);
+ DFG_ASSERT(m_jit.graph(), m_currentNode, (spillFormat & DataFormatJS) || spillFormat == DataFormatInt32);
m_gprs.retain(gpr, virtualRegister, SpillOrderSpilled);
- if (spillFormat == DataFormatJSInteger || spillFormat == DataFormatInteger) {
+ if (spillFormat == DataFormatJSInt32 || spillFormat == DataFormatInt32) {
// If we know this was spilled as an integer we can fill without checking.
if (strict) {
m_jit.load32(JITCompiler::addressFor(virtualRegister), gpr);
- info.fillInteger(*m_stream, gpr);
- returnFormat = DataFormatInteger;
+ info.fillInt32(*m_stream, gpr);
+ returnFormat = DataFormatInt32;
return gpr;
}
- if (spillFormat == DataFormatInteger) {
+ if (spillFormat == DataFormatInt32) {
m_jit.load32(JITCompiler::addressFor(virtualRegister), gpr);
m_jit.or64(GPRInfo::tagTypeNumberRegister, gpr);
} else
m_jit.load64(JITCompiler::addressFor(virtualRegister), gpr);
- info.fillJSValue(*m_stream, gpr, DataFormatJSInteger);
- returnFormat = DataFormatJSInteger;
+ info.fillJSValue(*m_stream, gpr, DataFormatJSInt32);
+ returnFormat = DataFormatJSInt32;
return gpr;
}
m_jit.load64(JITCompiler::addressFor(virtualRegister), gpr);
// Fill as JSValue, and fall through.
- info.fillJSValue(*m_stream, gpr, DataFormatJSInteger);
+ info.fillJSValue(*m_stream, gpr, DataFormatJSInt32);
m_gprs.unlock(gpr);
+ FALLTHROUGH;
}
case DataFormatJS: {
+ DFG_ASSERT(m_jit.graph(), m_currentNode, !(type & SpecInt52));
// Check the value is an integer.
GPRReg gpr = info.gpr();
m_gprs.lock(gpr);
if (type & ~SpecInt32)
speculationCheck(BadType, JSValueRegs(gpr), edge, m_jit.branch64(MacroAssembler::Below, gpr, GPRInfo::tagTypeNumberRegister));
- info.fillJSValue(*m_stream, gpr, DataFormatJSInteger);
+ info.fillJSValue(*m_stream, gpr, DataFormatJSInt32);
// If !strict we're done, return.
if (!strict) {
- returnFormat = DataFormatJSInteger;
+ returnFormat = DataFormatJSInt32;
return gpr;
}
- // else fall through & handle as DataFormatJSInteger.
+ // else fall through & handle as DataFormatJSInt32.
m_gprs.unlock(gpr);
+ FALLTHROUGH;
}
- case DataFormatJSInteger: {
+ case DataFormatJSInt32: {
// In a strict fill we need to strip off the value tag.
if (strict) {
GPRReg gpr = info.gpr();
GPRReg result;
// If the register has already been locked we need to take a copy.
- // If not, we'll zero extend in place, so mark on the info that this is now type DataFormatInteger, not DataFormatJSInteger.
+ // If not, we'll zero extend in place, so mark on the info that this is now type DataFormatInt32, not DataFormatJSInt32.
if (m_gprs.isLocked(gpr))
result = allocate();
else {
m_gprs.lock(gpr);
- info.fillInteger(*m_stream, gpr);
+ info.fillInt32(*m_stream, gpr);
result = gpr;
}
m_jit.zeroExtend32ToPtr(gpr, result);
- returnFormat = DataFormatInteger;
+ returnFormat = DataFormatInt32;
return result;
}
GPRReg gpr = info.gpr();
m_gprs.lock(gpr);
- returnFormat = DataFormatJSInteger;
+ returnFormat = DataFormatJSInt32;
return gpr;
}
- case DataFormatInteger: {
+ case DataFormatInt32: {
GPRReg gpr = info.gpr();
m_gprs.lock(gpr);
- returnFormat = DataFormatInteger;
+ returnFormat = DataFormatInt32;
return gpr;
}
-
- case DataFormatDouble:
- case DataFormatJSDouble: {
- if (edge->hasConstant() && isInt32Constant(edge.node())) {
- GPRReg gpr = allocate();
- ASSERT(isInt32Constant(edge.node()));
- m_jit.move(MacroAssembler::Imm32(valueOfInt32Constant(edge.node())), gpr);
- returnFormat = DataFormatInteger;
- return gpr;
- }
- }
+
+ case DataFormatJSDouble:
case DataFormatCell:
case DataFormatBoolean:
case DataFormatJSCell:
- case DataFormatJSBoolean: {
- terminateSpeculativeExecution(Uncountable, JSValueRegs(), 0);
- returnFormat = DataFormatInteger;
- return allocate();
- }
-
+ case DataFormatJSBoolean:
+ case DataFormatDouble:
case DataFormatStorage:
- RELEASE_ASSERT_NOT_REACHED();
+ case DataFormatInt52:
+ case DataFormatStrictInt52:
+ DFG_CRASH(m_jit.graph(), m_currentNode, "Bad data format");
default:
- RELEASE_ASSERT_NOT_REACHED();
+ DFG_CRASH(m_jit.graph(), m_currentNode, "Corrupt data format");
return InvalidGPRReg;
}
}
+#if COMPILER(CLANG) && defined(__has_warning)
+#pragma clang diagnostic pop
+#endif
-GPRReg SpeculativeJIT::fillSpeculateInt(Edge edge, DataFormat& returnFormat)
+GPRReg SpeculativeJIT::fillSpeculateInt32(Edge edge, DataFormat& returnFormat)
{
- return fillSpeculateIntInternal<false>(edge, returnFormat);
+ return fillSpeculateInt32Internal<false>(edge, returnFormat);
}
-GPRReg SpeculativeJIT::fillSpeculateIntStrict(Edge edge)
+GPRReg SpeculativeJIT::fillSpeculateInt32Strict(Edge edge)
{
- DataFormat mustBeDataFormatInteger;
- GPRReg result = fillSpeculateIntInternal<true>(edge, mustBeDataFormatInteger);
- RELEASE_ASSERT(mustBeDataFormatInteger == DataFormatInteger);
+ DataFormat mustBeDataFormatInt32;
+ GPRReg result = fillSpeculateInt32Internal<true>(edge, mustBeDataFormatInt32);
+ DFG_ASSERT(m_jit.graph(), m_currentNode, mustBeDataFormatInt32 == DataFormatInt32);
return result;
}
-FPRReg SpeculativeJIT::fillSpeculateDouble(Edge edge)
+GPRReg SpeculativeJIT::fillSpeculateInt52(Edge edge, DataFormat desiredFormat)
{
-#if DFG_ENABLE(DEBUG_VERBOSE)
- dataLogF("SpecDouble@%d ", edge->index());
-#endif
+ ASSERT(desiredFormat == DataFormatInt52 || desiredFormat == DataFormatStrictInt52);
AbstractValue& value = m_state.forNode(edge);
- SpeculatedType type = value.m_type;
- ASSERT(edge.useKind() != KnownNumberUse || !(value.m_type & ~SpecNumber));
- value.filter(SpecNumber);
+
+ m_interpreter.filter(value, SpecMachineInt);
+ if (value.isClear()) {
+ terminateSpeculativeExecution(Uncountable, JSValueRegs(), 0);
+ return allocate();
+ }
+
+ VirtualRegister virtualRegister = edge->virtualRegister();
+ GenerationInfo& info = generationInfoFromVirtualRegister(virtualRegister);
+
+ switch (info.registerFormat()) {
+ case DataFormatNone: {
+ GPRReg gpr = allocate();
+
+ if (edge->hasConstant()) {
+ JSValue jsValue = edge->asJSValue();
+ ASSERT(jsValue.isMachineInt());
+ m_gprs.retain(gpr, virtualRegister, SpillOrderConstant);
+ int64_t value = jsValue.asMachineInt();
+ if (desiredFormat == DataFormatInt52)
+ value = value << JSValue::int52ShiftAmount;
+ m_jit.move(MacroAssembler::Imm64(value), gpr);
+ info.fillGPR(*m_stream, gpr, desiredFormat);
+ return gpr;
+ }
+
+ DataFormat spillFormat = info.spillFormat();
+
+ DFG_ASSERT(m_jit.graph(), m_currentNode, spillFormat == DataFormatInt52 || spillFormat == DataFormatStrictInt52);
+
+ m_gprs.retain(gpr, virtualRegister, SpillOrderSpilled);
+
+ m_jit.load64(JITCompiler::addressFor(virtualRegister), gpr);
+ if (desiredFormat == DataFormatStrictInt52) {
+ if (spillFormat == DataFormatInt52)
+ m_jit.rshift64(TrustedImm32(JSValue::int52ShiftAmount), gpr);
+ info.fillStrictInt52(*m_stream, gpr);
+ return gpr;
+ }
+ if (spillFormat == DataFormatStrictInt52)
+ m_jit.lshift64(TrustedImm32(JSValue::int52ShiftAmount), gpr);
+ info.fillInt52(*m_stream, gpr);
+ return gpr;
+ }
+
+ case DataFormatStrictInt52: {
+ GPRReg gpr = info.gpr();
+ bool wasLocked = m_gprs.isLocked(gpr);
+ lock(gpr);
+ if (desiredFormat == DataFormatStrictInt52)
+ return gpr;
+ if (wasLocked) {
+ GPRReg result = allocate();
+ m_jit.move(gpr, result);
+ unlock(gpr);
+ gpr = result;
+ } else
+ info.fillInt52(*m_stream, gpr);
+ m_jit.lshift64(TrustedImm32(JSValue::int52ShiftAmount), gpr);
+ return gpr;
+ }
+
+ case DataFormatInt52: {
+ GPRReg gpr = info.gpr();
+ bool wasLocked = m_gprs.isLocked(gpr);
+ lock(gpr);
+ if (desiredFormat == DataFormatInt52)
+ return gpr;
+ if (wasLocked) {
+ GPRReg result = allocate();
+ m_jit.move(gpr, result);
+ unlock(gpr);
+ gpr = result;
+ } else
+ info.fillStrictInt52(*m_stream, gpr);
+ m_jit.rshift64(TrustedImm32(JSValue::int52ShiftAmount), gpr);
+ return gpr;
+ }
+
+ default:
+ DFG_CRASH(m_jit.graph(), m_currentNode, "Bad data format");
+ return InvalidGPRReg;
+ }
+}
+
+FPRReg SpeculativeJIT::fillSpeculateDouble(Edge edge)
+{
+ ASSERT(edge.useKind() == DoubleRepUse || edge.useKind() == DoubleRepRealUse || edge.useKind() == DoubleRepMachineIntUse);
+ ASSERT(edge->hasDoubleResult());
VirtualRegister virtualRegister = edge->virtualRegister();
- GenerationInfo& info = m_generationInfo[virtualRegister];
+ GenerationInfo& info = generationInfoFromVirtualRegister(virtualRegister);
if (info.registerFormat() == DataFormatNone) {
if (edge->hasConstant()) {
GPRReg gpr = allocate();
- if (isInt32Constant(edge.node())) {
- FPRReg fpr = fprAllocate();
- m_jit.move(MacroAssembler::Imm64(reinterpretDoubleToInt64(static_cast<double>(valueOfInt32Constant(edge.node())))), gpr);
- m_jit.move64ToDouble(gpr, fpr);
- unlock(gpr);
-
- m_fprs.retain(fpr, virtualRegister, SpillOrderDouble);
- info.fillDouble(*m_stream, fpr);
- return fpr;
- }
- if (isNumberConstant(edge.node())) {
+ if (edge->isNumberConstant()) {
FPRReg fpr = fprAllocate();
- m_jit.move(MacroAssembler::Imm64(reinterpretDoubleToInt64(valueOfNumberConstant(edge.node()))), gpr);
+ m_jit.move(MacroAssembler::Imm64(reinterpretDoubleToInt64(edge->asNumber())), gpr);
m_jit.move64ToDouble(gpr, fpr);
unlock(gpr);
}
DataFormat spillFormat = info.spillFormat();
- switch (spillFormat) {
- case DataFormatDouble: {
- FPRReg fpr = fprAllocate();
- m_jit.loadDouble(JITCompiler::addressFor(virtualRegister), fpr);
- m_fprs.retain(fpr, virtualRegister, SpillOrderDouble);
- info.fillDouble(*m_stream, fpr);
- return fpr;
- }
-
- case DataFormatInteger: {
- GPRReg gpr = allocate();
-
- m_gprs.retain(gpr, virtualRegister, SpillOrderSpilled);
- m_jit.load32(JITCompiler::addressFor(virtualRegister), gpr);
- info.fillInteger(*m_stream, gpr);
- unlock(gpr);
- break;
- }
-
- default:
- GPRReg gpr = allocate();
-
- RELEASE_ASSERT(spillFormat & DataFormatJS);
- m_gprs.retain(gpr, virtualRegister, SpillOrderSpilled);
- m_jit.load64(JITCompiler::addressFor(virtualRegister), gpr);
- info.fillJSValue(*m_stream, gpr, spillFormat);
- unlock(gpr);
- break;
+ if (spillFormat != DataFormatDouble) {
+ DFG_CRASH(
+ m_jit.graph(), m_currentNode, toCString(
+ "Expected ", edge, " to have double format but instead it is spilled as ",
+ dataFormatToString(spillFormat)).data());
}
+ DFG_ASSERT(m_jit.graph(), m_currentNode, spillFormat == DataFormatDouble);
+ FPRReg fpr = fprAllocate();
+ m_jit.loadDouble(JITCompiler::addressFor(virtualRegister), fpr);
+ m_fprs.retain(fpr, virtualRegister, SpillOrderDouble);
+ info.fillDouble(*m_stream, fpr);
+ return fpr;
}
- switch (info.registerFormat()) {
- case DataFormatNone: // Should have filled, above.
- case DataFormatBoolean: // This type never occurs.
- case DataFormatStorage:
- RELEASE_ASSERT_NOT_REACHED();
-
- case DataFormatCell:
- terminateSpeculativeExecution(Uncountable, JSValueRegs(), 0);
- return fprAllocate();
-
- case DataFormatJSCell:
- case DataFormatJS:
- case DataFormatJSBoolean: {
- GPRReg jsValueGpr = info.gpr();
- m_gprs.lock(jsValueGpr);
- FPRReg fpr = fprAllocate();
- GPRReg tempGpr = allocate();
-
- JITCompiler::Jump isInteger = m_jit.branch64(MacroAssembler::AboveOrEqual, jsValueGpr, GPRInfo::tagTypeNumberRegister);
-
- if (type & ~SpecNumber)
- speculationCheck(BadType, JSValueRegs(jsValueGpr), edge, m_jit.branchTest64(MacroAssembler::Zero, jsValueGpr, GPRInfo::tagTypeNumberRegister));
-
- // First, if we get here we have a double encoded as a JSValue
- m_jit.move(jsValueGpr, tempGpr);
- unboxDouble(tempGpr, fpr);
- JITCompiler::Jump hasUnboxedDouble = m_jit.jump();
-
- // Finally, handle integers.
- isInteger.link(&m_jit);
- m_jit.convertInt32ToDouble(jsValueGpr, fpr);
- hasUnboxedDouble.link(&m_jit);
-
- m_gprs.release(jsValueGpr);
- m_gprs.unlock(jsValueGpr);
- m_gprs.unlock(tempGpr);
- m_fprs.retain(fpr, virtualRegister, SpillOrderDouble);
- info.fillDouble(*m_stream, fpr);
- info.killSpilled();
- return fpr;
- }
-
- case DataFormatJSInteger:
- case DataFormatInteger: {
- FPRReg fpr = fprAllocate();
- GPRReg gpr = info.gpr();
- m_gprs.lock(gpr);
- m_jit.convertInt32ToDouble(gpr, fpr);
- m_gprs.unlock(gpr);
- return fpr;
- }
-
- // Unbox the double
- case DataFormatJSDouble: {
- GPRReg gpr = info.gpr();
- FPRReg fpr = fprAllocate();
- if (m_gprs.isLocked(gpr)) {
- // Make sure we don't trample gpr if it is in use.
- GPRReg temp = allocate();
- m_jit.move(gpr, temp);
- unboxDouble(temp, fpr);
- unlock(temp);
- } else
- unboxDouble(gpr, fpr);
-
- m_gprs.release(gpr);
- m_fprs.retain(fpr, virtualRegister, SpillOrderDouble);
-
- info.fillDouble(*m_stream, fpr);
- return fpr;
- }
-
- case DataFormatDouble: {
- FPRReg fpr = info.fpr();
- m_fprs.lock(fpr);
- return fpr;
- }
-
- default:
- RELEASE_ASSERT_NOT_REACHED();
- return InvalidFPRReg;
- }
+ DFG_ASSERT(m_jit.graph(), m_currentNode, info.registerFormat() == DataFormatDouble);
+ FPRReg fpr = info.fpr();
+ m_fprs.lock(fpr);
+ return fpr;
}
GPRReg SpeculativeJIT::fillSpeculateCell(Edge edge)
{
-#if DFG_ENABLE(DEBUG_VERBOSE)
- dataLogF("SpecCell@%d ", edge->index());
-#endif
AbstractValue& value = m_state.forNode(edge);
SpeculatedType type = value.m_type;
ASSERT((edge.useKind() != KnownCellUse && edge.useKind() != KnownStringUse) || !(value.m_type & ~SpecCell));
- value.filter(SpecCell);
+
+ m_interpreter.filter(value, SpecCell);
+ if (value.isClear()) {
+ terminateSpeculativeExecution(Uncountable, JSValueRegs(), 0);
+ return allocate();
+ }
+
VirtualRegister virtualRegister = edge->virtualRegister();
- GenerationInfo& info = m_generationInfo[virtualRegister];
+ GenerationInfo& info = generationInfoFromVirtualRegister(virtualRegister);
switch (info.registerFormat()) {
case DataFormatNone: {
- if (info.spillFormat() == DataFormatInteger || info.spillFormat() == DataFormatDouble) {
- terminateSpeculativeExecution(Uncountable, JSValueRegs(), 0);
- return allocate();
- }
-
GPRReg gpr = allocate();
if (edge->hasConstant()) {
- JSValue jsValue = valueOfJSConstant(edge.node());
- if (jsValue.isCell()) {
- m_gprs.retain(gpr, virtualRegister, SpillOrderConstant);
- m_jit.move(MacroAssembler::TrustedImm64(JSValue::encode(jsValue)), gpr);
- info.fillJSValue(*m_stream, gpr, DataFormatJSCell);
- return gpr;
- }
- terminateSpeculativeExecution(Uncountable, JSValueRegs(), 0);
+ JSValue jsValue = edge->asJSValue();
+ m_gprs.retain(gpr, virtualRegister, SpillOrderConstant);
+ m_jit.move(MacroAssembler::TrustedImm64(JSValue::encode(jsValue)), gpr);
+ info.fillJSValue(*m_stream, gpr, DataFormatJSCell);
return gpr;
}
- RELEASE_ASSERT(info.spillFormat() & DataFormatJS);
+
m_gprs.retain(gpr, virtualRegister, SpillOrderSpilled);
m_jit.load64(JITCompiler::addressFor(virtualRegister), gpr);
info.fillJSValue(*m_stream, gpr, DataFormatJS);
if (type & ~SpecCell)
- speculationCheck(BadType, JSValueRegs(gpr), edge, m_jit.branchTest64(MacroAssembler::NonZero, gpr, GPRInfo::tagMaskRegister));
+ speculationCheck(BadType, JSValueRegs(gpr), edge, m_jit.branchIfNotCell(JSValueRegs(gpr)));
info.fillJSValue(*m_stream, gpr, DataFormatJSCell);
return gpr;
}
case DataFormatJSCell: {
GPRReg gpr = info.gpr();
m_gprs.lock(gpr);
+ if (!ASSERT_DISABLED) {
+ MacroAssembler::Jump checkCell = m_jit.branchIfCell(JSValueRegs(gpr));
+ m_jit.abortWithReason(DFGIsNotCell);
+ checkCell.link(&m_jit);
+ }
return gpr;
}
GPRReg gpr = info.gpr();
m_gprs.lock(gpr);
if (type & ~SpecCell)
- speculationCheck(BadType, JSValueRegs(gpr), edge, m_jit.branchTest64(MacroAssembler::NonZero, gpr, GPRInfo::tagMaskRegister));
+ speculationCheck(BadType, JSValueRegs(gpr), edge, m_jit.branchIfNotCell(JSValueRegs(gpr)));
info.fillJSValue(*m_stream, gpr, DataFormatJSCell);
return gpr;
}
- case DataFormatJSInteger:
- case DataFormatInteger:
+ case DataFormatJSInt32:
+ case DataFormatInt32:
case DataFormatJSDouble:
- case DataFormatDouble:
case DataFormatJSBoolean:
- case DataFormatBoolean: {
- terminateSpeculativeExecution(Uncountable, JSValueRegs(), 0);
- return allocate();
- }
-
+ case DataFormatBoolean:
+ case DataFormatDouble:
case DataFormatStorage:
- RELEASE_ASSERT_NOT_REACHED();
+ case DataFormatInt52:
+ case DataFormatStrictInt52:
+ DFG_CRASH(m_jit.graph(), m_currentNode, "Bad data format");
default:
- RELEASE_ASSERT_NOT_REACHED();
+ DFG_CRASH(m_jit.graph(), m_currentNode, "Corrupt data format");
return InvalidGPRReg;
}
}
GPRReg SpeculativeJIT::fillSpeculateBoolean(Edge edge)
{
-#if DFG_ENABLE(DEBUG_VERBOSE)
- dataLogF("SpecBool@%d ", edge->index());
-#endif
AbstractValue& value = m_state.forNode(edge);
SpeculatedType type = value.m_type;
- value.filter(SpecBoolean);
+
+ m_interpreter.filter(value, SpecBoolean);
+ if (value.isClear()) {
+ terminateSpeculativeExecution(Uncountable, JSValueRegs(), 0);
+ return allocate();
+ }
+
VirtualRegister virtualRegister = edge->virtualRegister();
- GenerationInfo& info = m_generationInfo[virtualRegister];
+ GenerationInfo& info = generationInfoFromVirtualRegister(virtualRegister);
switch (info.registerFormat()) {
case DataFormatNone: {
- if (info.spillFormat() == DataFormatInteger || info.spillFormat() == DataFormatDouble) {
- terminateSpeculativeExecution(Uncountable, JSValueRegs(), 0);
- return allocate();
- }
-
GPRReg gpr = allocate();
if (edge->hasConstant()) {
- JSValue jsValue = valueOfJSConstant(edge.node());
- if (jsValue.isBoolean()) {
- m_gprs.retain(gpr, virtualRegister, SpillOrderConstant);
- m_jit.move(MacroAssembler::TrustedImm64(JSValue::encode(jsValue)), gpr);
- info.fillJSValue(*m_stream, gpr, DataFormatJSBoolean);
- return gpr;
- }
- terminateSpeculativeExecution(Uncountable, JSValueRegs(), 0);
+ JSValue jsValue = edge->asJSValue();
+ m_gprs.retain(gpr, virtualRegister, SpillOrderConstant);
+ m_jit.move(MacroAssembler::TrustedImm64(JSValue::encode(jsValue)), gpr);
+ info.fillJSValue(*m_stream, gpr, DataFormatJSBoolean);
return gpr;
}
- RELEASE_ASSERT(info.spillFormat() & DataFormatJS);
+ DFG_ASSERT(m_jit.graph(), m_currentNode, info.spillFormat() & DataFormatJS);
m_gprs.retain(gpr, virtualRegister, SpillOrderSpilled);
m_jit.load64(JITCompiler::addressFor(virtualRegister), gpr);
return gpr;
}
- case DataFormatJSInteger:
- case DataFormatInteger:
+ case DataFormatJSInt32:
+ case DataFormatInt32:
case DataFormatJSDouble:
- case DataFormatDouble:
case DataFormatJSCell:
- case DataFormatCell: {
- terminateSpeculativeExecution(Uncountable, JSValueRegs(), 0);
- return allocate();
- }
-
+ case DataFormatCell:
+ case DataFormatDouble:
case DataFormatStorage:
- RELEASE_ASSERT_NOT_REACHED();
+ case DataFormatInt52:
+ case DataFormatStrictInt52:
+ DFG_CRASH(m_jit.graph(), m_currentNode, "Bad data format");
default:
- RELEASE_ASSERT_NOT_REACHED();
+ DFG_CRASH(m_jit.graph(), m_currentNode, "Corrupt data format");
return InvalidGPRReg;
}
}
-JITCompiler::Jump SpeculativeJIT::convertToDouble(GPRReg value, FPRReg result, GPRReg tmp)
+void SpeculativeJIT::compileBaseValueStoreBarrier(Edge& baseEdge, Edge& valueEdge)
{
- JITCompiler::Jump isInteger = m_jit.branch64(MacroAssembler::AboveOrEqual, value, GPRInfo::tagTypeNumberRegister);
-
- JITCompiler::Jump notNumber = m_jit.branchTest64(MacroAssembler::Zero, value, GPRInfo::tagTypeNumberRegister);
-
- m_jit.move(value, tmp);
- unboxDouble(tmp, result);
-
- JITCompiler::Jump done = m_jit.jump();
-
- isInteger.link(&m_jit);
-
- m_jit.convertInt32ToDouble(value, result);
-
- done.link(&m_jit);
+#if ENABLE(GGC)
+ ASSERT(!isKnownNotCell(valueEdge.node()));
+
+ SpeculateCellOperand base(this, baseEdge);
+ JSValueOperand value(this, valueEdge);
+ GPRTemporary scratch1(this);
+ GPRTemporary scratch2(this);
- return notNumber;
+ writeBarrier(base.gpr(), value.gpr(), valueEdge, scratch1.gpr(), scratch2.gpr());
+#else
+ UNUSED_PARAM(baseEdge);
+ UNUSED_PARAM(valueEdge);
+#endif
}
void SpeculativeJIT::compileObjectEquality(Node* node)
{
SpeculateCellOperand op1(this, node->child1());
SpeculateCellOperand op2(this, node->child2());
- GPRTemporary result(this, op1);
+ GPRTemporary result(this, Reuse, op1);
GPRReg op1GPR = op1.gpr();
GPRReg op2GPR = op2.gpr();
GPRReg resultGPR = result.gpr();
- if (m_jit.graph().globalObjectFor(node->codeOrigin)->masqueradesAsUndefinedWatchpoint()->isStillValid()) {
- m_jit.graph().globalObjectFor(node->codeOrigin)->masqueradesAsUndefinedWatchpoint()->add(speculationWatchpoint());
+ if (masqueradesAsUndefinedWatchpointIsStillValid()) {
DFG_TYPE_CHECK(
- JSValueSource::unboxedCell(op1GPR), node->child1(), SpecObject, m_jit.branchPtr(
- MacroAssembler::Equal,
- MacroAssembler::Address(op1GPR, JSCell::structureOffset()),
- MacroAssembler::TrustedImmPtr(m_jit.vm()->stringStructure.get())));
+ JSValueSource::unboxedCell(op1GPR), node->child1(), SpecObject, m_jit.branchIfNotObject(op1GPR));
DFG_TYPE_CHECK(
- JSValueSource::unboxedCell(op2GPR), node->child2(), SpecObject, m_jit.branchPtr(
- MacroAssembler::Equal,
- MacroAssembler::Address(op2GPR, JSCell::structureOffset()),
- MacroAssembler::TrustedImmPtr(m_jit.vm()->stringStructure.get())));
+ JSValueSource::unboxedCell(op2GPR), node->child2(), SpecObject, m_jit.branchIfNotObject(op2GPR));
} else {
- GPRTemporary structure(this);
- GPRReg structureGPR = structure.gpr();
-
- m_jit.loadPtr(MacroAssembler::Address(op1GPR, JSCell::structureOffset()), structureGPR);
DFG_TYPE_CHECK(
- JSValueSource::unboxedCell(op1GPR), node->child1(), SpecObject, m_jit.branchPtr(
- MacroAssembler::Equal,
- structureGPR,
- MacroAssembler::TrustedImmPtr(m_jit.vm()->stringStructure.get())));
+ JSValueSource::unboxedCell(op1GPR), node->child1(), SpecObject, m_jit.branchIfNotObject(op1GPR));
speculationCheck(BadType, JSValueSource::unboxedCell(op1GPR), node->child1(),
m_jit.branchTest8(
MacroAssembler::NonZero,
- MacroAssembler::Address(structureGPR, Structure::typeInfoFlagsOffset()),
+ MacroAssembler::Address(op1GPR, JSCell::typeInfoFlagsOffset()),
MacroAssembler::TrustedImm32(MasqueradesAsUndefined)));
- m_jit.loadPtr(MacroAssembler::Address(op2GPR, JSCell::structureOffset()), structureGPR);
DFG_TYPE_CHECK(
- JSValueSource::unboxedCell(op2GPR), node->child2(), SpecObject, m_jit.branchPtr(
- MacroAssembler::Equal,
- structureGPR,
- MacroAssembler::TrustedImmPtr(m_jit.vm()->stringStructure.get())));
+ JSValueSource::unboxedCell(op2GPR), node->child2(), SpecObject, m_jit.branchIfNotObject(op2GPR));
speculationCheck(BadType, JSValueSource::unboxedCell(op2GPR), node->child2(),
m_jit.branchTest8(
MacroAssembler::NonZero,
- MacroAssembler::Address(structureGPR, Structure::typeInfoFlagsOffset()),
+ MacroAssembler::Address(op2GPR, JSCell::typeInfoFlagsOffset()),
MacroAssembler::TrustedImm32(MasqueradesAsUndefined)));
}
jsValueResult(resultGPR, m_currentNode, DataFormatJSBoolean);
}
+void SpeculativeJIT::compileObjectStrictEquality(Edge objectChild, Edge otherChild)
+{
+ SpeculateCellOperand op1(this, objectChild);
+ JSValueOperand op2(this, otherChild);
+ GPRTemporary result(this);
+
+ GPRReg op1GPR = op1.gpr();
+ GPRReg op2GPR = op2.gpr();
+ GPRReg resultGPR = result.gpr();
+
+ DFG_TYPE_CHECK(JSValueSource::unboxedCell(op1GPR), objectChild, SpecObject, m_jit.branchIfNotObject(op1GPR));
+
+ // At this point we know that we can perform a straight-forward equality comparison on pointer
+ // values because we are doing strict equality.
+ m_jit.compare64(MacroAssembler::Equal, op1GPR, op2GPR, resultGPR);
+ m_jit.or32(TrustedImm32(ValueFalse), resultGPR);
+ jsValueResult(resultGPR, m_currentNode, DataFormatJSBoolean);
+}
+
+void SpeculativeJIT::compilePeepHoleObjectStrictEquality(Edge objectChild, Edge otherChild, Node* branchNode)
+{
+ BasicBlock* taken = branchNode->branchData()->taken.block;
+ BasicBlock* notTaken = branchNode->branchData()->notTaken.block;
+
+ SpeculateCellOperand op1(this, objectChild);
+ JSValueOperand op2(this, otherChild);
+
+ GPRReg op1GPR = op1.gpr();
+ GPRReg op2GPR = op2.gpr();
+
+ DFG_TYPE_CHECK(JSValueSource::unboxedCell(op1GPR), objectChild, SpecObject, m_jit.branchIfNotObject(op1GPR));
+
+ if (taken == nextBlock()) {
+ branchPtr(MacroAssembler::NotEqual, op1GPR, op2GPR, notTaken);
+ jump(taken);
+ } else {
+ branchPtr(MacroAssembler::Equal, op1GPR, op2GPR, taken);
+ jump(notTaken);
+ }
+}
+
void SpeculativeJIT::compileObjectToObjectOrOtherEquality(Edge leftChild, Edge rightChild)
{
SpeculateCellOperand op1(this, leftChild);
GPRReg op1GPR = op1.gpr();
GPRReg op2GPR = op2.gpr();
GPRReg resultGPR = result.gpr();
- GPRTemporary structure;
- GPRReg structureGPR = InvalidGPRReg;
- bool masqueradesAsUndefinedWatchpointValid = m_jit.graph().globalObjectFor(m_currentNode->codeOrigin)->masqueradesAsUndefinedWatchpoint()->isStillValid();
-
- if (!masqueradesAsUndefinedWatchpointValid) {
- // The masquerades as undefined case will use the structure register, so allocate it here.
- // Do this at the top of the function to avoid branching around a register allocation.
- GPRTemporary realStructure(this);
- structure.adopt(realStructure);
- structureGPR = structure.gpr();
- }
+ bool masqueradesAsUndefinedWatchpointValid =
+ masqueradesAsUndefinedWatchpointIsStillValid();
if (masqueradesAsUndefinedWatchpointValid) {
- m_jit.graph().globalObjectFor(m_currentNode->codeOrigin)->masqueradesAsUndefinedWatchpoint()->add(speculationWatchpoint());
DFG_TYPE_CHECK(
- JSValueSource::unboxedCell(op1GPR), leftChild, SpecObject, m_jit.branchPtr(
- MacroAssembler::Equal,
- MacroAssembler::Address(op1GPR, JSCell::structureOffset()),
- MacroAssembler::TrustedImmPtr(m_jit.vm()->stringStructure.get())));
+ JSValueSource::unboxedCell(op1GPR), leftChild, SpecObject, m_jit.branchIfNotObject(op1GPR));
} else {
- m_jit.loadPtr(MacroAssembler::Address(op1GPR, JSCell::structureOffset()), structureGPR);
DFG_TYPE_CHECK(
- JSValueSource::unboxedCell(op1GPR), leftChild, SpecObject, m_jit.branchPtr(
- MacroAssembler::Equal,
- structureGPR,
- MacroAssembler::TrustedImmPtr(m_jit.vm()->stringStructure.get())));
+ JSValueSource::unboxedCell(op1GPR), leftChild, SpecObject, m_jit.branchIfNotObject(op1GPR));
speculationCheck(BadType, JSValueSource::unboxedCell(op1GPR), leftChild,
m_jit.branchTest8(
MacroAssembler::NonZero,
- MacroAssembler::Address(structureGPR, Structure::typeInfoFlagsOffset()),
+ MacroAssembler::Address(op1GPR, JSCell::typeInfoFlagsOffset()),
MacroAssembler::TrustedImm32(MasqueradesAsUndefined)));
}
// It seems that most of the time when programs do a == b where b may be either null/undefined
// or an object, b is usually an object. Balance the branches to make that case fast.
- MacroAssembler::Jump rightNotCell =
- m_jit.branchTest64(MacroAssembler::NonZero, op2GPR, GPRInfo::tagMaskRegister);
+ MacroAssembler::Jump rightNotCell = m_jit.branchIfNotCell(JSValueRegs(op2GPR));
// We know that within this branch, rightChild must be a cell.
- if (masqueradesAsUndefinedWatchpointValid) {
- m_jit.graph().globalObjectFor(m_currentNode->codeOrigin)->masqueradesAsUndefinedWatchpoint()->add(speculationWatchpoint());
+ if (masqueradesAsUndefinedWatchpointValid) {
DFG_TYPE_CHECK(
- JSValueRegs(op2GPR), rightChild, (~SpecCell) | SpecObject, m_jit.branchPtr(
- MacroAssembler::Equal,
- MacroAssembler::Address(op2GPR, JSCell::structureOffset()),
- MacroAssembler::TrustedImmPtr(m_jit.vm()->stringStructure.get())));
+ JSValueRegs(op2GPR), rightChild, (~SpecCell) | SpecObject, m_jit.branchIfNotObject(op2GPR));
} else {
- m_jit.loadPtr(MacroAssembler::Address(op2GPR, JSCell::structureOffset()), structureGPR);
DFG_TYPE_CHECK(
- JSValueRegs(op2GPR), rightChild, (~SpecCell) | SpecObject, m_jit.branchPtr(
- MacroAssembler::Equal,
- structureGPR,
- MacroAssembler::TrustedImmPtr(m_jit.vm()->stringStructure.get())));
+ JSValueRegs(op2GPR), rightChild, (~SpecCell) | SpecObject, m_jit.branchIfNotObject(op2GPR));
speculationCheck(BadType, JSValueRegs(op2GPR), rightChild,
m_jit.branchTest8(
MacroAssembler::NonZero,
- MacroAssembler::Address(structureGPR, Structure::typeInfoFlagsOffset()),
+ MacroAssembler::Address(op2GPR, JSCell::typeInfoFlagsOffset()),
MacroAssembler::TrustedImm32(MasqueradesAsUndefined)));
}
void SpeculativeJIT::compilePeepHoleObjectToObjectOrOtherEquality(Edge leftChild, Edge rightChild, Node* branchNode)
{
- BlockIndex taken = branchNode->takenBlockIndex();
- BlockIndex notTaken = branchNode->notTakenBlockIndex();
+ BasicBlock* taken = branchNode->branchData()->taken.block;
+ BasicBlock* notTaken = branchNode->branchData()->notTaken.block;
SpeculateCellOperand op1(this, leftChild);
JSValueOperand op2(this, rightChild, ManualOperandSpeculation);
GPRReg op1GPR = op1.gpr();
GPRReg op2GPR = op2.gpr();
GPRReg resultGPR = result.gpr();
- GPRTemporary structure;
- GPRReg structureGPR = InvalidGPRReg;
- bool masqueradesAsUndefinedWatchpointValid = m_jit.graph().globalObjectFor(m_currentNode->codeOrigin)->masqueradesAsUndefinedWatchpoint()->isStillValid();
-
- if (!masqueradesAsUndefinedWatchpointValid) {
- // The masquerades as undefined case will use the structure register, so allocate it here.
- // Do this at the top of the function to avoid branching around a register allocation.
- GPRTemporary realStructure(this);
- structure.adopt(realStructure);
- structureGPR = structure.gpr();
- }
+ bool masqueradesAsUndefinedWatchpointValid =
+ masqueradesAsUndefinedWatchpointIsStillValid();
if (masqueradesAsUndefinedWatchpointValid) {
- m_jit.graph().globalObjectFor(m_currentNode->codeOrigin)->masqueradesAsUndefinedWatchpoint()->add(speculationWatchpoint());
DFG_TYPE_CHECK(
- JSValueSource::unboxedCell(op1GPR), leftChild, SpecObject, m_jit.branchPtr(
- MacroAssembler::Equal,
- MacroAssembler::Address(op1GPR, JSCell::structureOffset()),
- MacroAssembler::TrustedImmPtr(m_jit.vm()->stringStructure.get())));
+ JSValueSource::unboxedCell(op1GPR), leftChild, SpecObject, m_jit.branchIfNotObject(op1GPR));
} else {
- m_jit.loadPtr(MacroAssembler::Address(op1GPR, JSCell::structureOffset()), structureGPR);
DFG_TYPE_CHECK(
- JSValueSource::unboxedCell(op1GPR), leftChild, SpecObject, m_jit.branchPtr(
- MacroAssembler::Equal,
- structureGPR,
- MacroAssembler::TrustedImmPtr(m_jit.vm()->stringStructure.get())));
+ JSValueSource::unboxedCell(op1GPR), leftChild, SpecObject, m_jit.branchIfNotObject(op1GPR));
speculationCheck(BadType, JSValueSource::unboxedCell(op1GPR), leftChild,
m_jit.branchTest8(
MacroAssembler::NonZero,
- MacroAssembler::Address(structureGPR, Structure::typeInfoFlagsOffset()),
+ MacroAssembler::Address(op1GPR, JSCell::typeInfoFlagsOffset()),
MacroAssembler::TrustedImm32(MasqueradesAsUndefined)));
}
// It seems that most of the time when programs do a == b where b may be either null/undefined
// or an object, b is usually an object. Balance the branches to make that case fast.
- MacroAssembler::Jump rightNotCell =
- m_jit.branchTest64(MacroAssembler::NonZero, op2GPR, GPRInfo::tagMaskRegister);
+ MacroAssembler::Jump rightNotCell = m_jit.branchIfNotCell(JSValueRegs(op2GPR));
// We know that within this branch, rightChild must be a cell.
if (masqueradesAsUndefinedWatchpointValid) {
- m_jit.graph().globalObjectFor(m_currentNode->codeOrigin)->masqueradesAsUndefinedWatchpoint()->add(speculationWatchpoint());
DFG_TYPE_CHECK(
- JSValueRegs(op2GPR), rightChild, (~SpecCell) | SpecObject, m_jit.branchPtr(
- MacroAssembler::Equal,
- MacroAssembler::Address(op2GPR, JSCell::structureOffset()),
- MacroAssembler::TrustedImmPtr(m_jit.vm()->stringStructure.get())));
+ JSValueRegs(op2GPR), rightChild, (~SpecCell) | SpecObject, m_jit.branchIfNotObject(op2GPR));
} else {
- m_jit.loadPtr(MacroAssembler::Address(op2GPR, JSCell::structureOffset()), structureGPR);
DFG_TYPE_CHECK(
- JSValueRegs(op2GPR), rightChild, (~SpecCell) | SpecObject, m_jit.branchPtr(
- MacroAssembler::Equal,
- structureGPR,
- MacroAssembler::TrustedImmPtr(m_jit.vm()->stringStructure.get())));
+ JSValueRegs(op2GPR), rightChild, (~SpecCell) | SpecObject, m_jit.branchIfNotObject(op2GPR));
speculationCheck(BadType, JSValueRegs(op2GPR), rightChild,
m_jit.branchTest8(
MacroAssembler::NonZero,
- MacroAssembler::Address(structureGPR, Structure::typeInfoFlagsOffset()),
+ MacroAssembler::Address(op2GPR, JSCell::typeInfoFlagsOffset()),
MacroAssembler::TrustedImm32(MasqueradesAsUndefined)));
}
jump(notTaken);
}
-void SpeculativeJIT::compileIntegerCompare(Node* node, MacroAssembler::RelationalCondition condition)
+void SpeculativeJIT::compileInt32Compare(Node* node, MacroAssembler::RelationalCondition condition)
{
- SpeculateIntegerOperand op1(this, node->child1());
- SpeculateIntegerOperand op2(this, node->child2());
- GPRTemporary result(this, op1, op2);
+ SpeculateInt32Operand op1(this, node->child1());
+ SpeculateInt32Operand op2(this, node->child2());
+ GPRTemporary result(this, Reuse, op1, op2);
m_jit.compare32(condition, op1.gpr(), op2.gpr(), result.gpr());
jsValueResult(result.gpr(), m_currentNode, DataFormatJSBoolean);
}
+void SpeculativeJIT::compileInt52Compare(Node* node, MacroAssembler::RelationalCondition condition)
+{
+ SpeculateWhicheverInt52Operand op1(this, node->child1());
+ SpeculateWhicheverInt52Operand op2(this, node->child2(), op1);
+ GPRTemporary result(this, Reuse, op1, op2);
+
+ m_jit.compare64(condition, op1.gpr(), op2.gpr(), result.gpr());
+
+ // If we add a DataFormatBool, we should use it here.
+ m_jit.or32(TrustedImm32(ValueFalse), result.gpr());
+ jsValueResult(result.gpr(), m_currentNode, DataFormatJSBoolean);
+}
+
+void SpeculativeJIT::compilePeepHoleInt52Branch(Node* node, Node* branchNode, JITCompiler::RelationalCondition condition)
+{
+ BasicBlock* taken = branchNode->branchData()->taken.block;
+ BasicBlock* notTaken = branchNode->branchData()->notTaken.block;
+
+ // The branch instruction will branch to the taken block.
+ // If taken is next, switch taken with notTaken & invert the branch condition so we can fall through.
+ if (taken == nextBlock()) {
+ condition = JITCompiler::invert(condition);
+ BasicBlock* tmp = taken;
+ taken = notTaken;
+ notTaken = tmp;
+ }
+
+ SpeculateWhicheverInt52Operand op1(this, node->child1());
+ SpeculateWhicheverInt52Operand op2(this, node->child2(), op1);
+
+ branch64(condition, op1.gpr(), op2.gpr(), taken);
+ jump(notTaken);
+}
+
void SpeculativeJIT::compileDoubleCompare(Node* node, MacroAssembler::DoubleCondition condition)
{
SpeculateDoubleOperand op1(this, node->child1());
jsValueResult(result.gpr(), node, DataFormatJSBoolean);
}
-void SpeculativeJIT::compileValueAdd(Node* node)
-{
- JSValueOperand op1(this, node->child1());
- JSValueOperand op2(this, node->child2());
-
- GPRReg op1GPR = op1.gpr();
- GPRReg op2GPR = op2.gpr();
-
- flushRegisters();
-
- GPRResult result(this);
- if (isKnownNotNumber(node->child1().node()) || isKnownNotNumber(node->child2().node()))
- callOperation(operationValueAddNotNumber, result.gpr(), op1GPR, op2GPR);
- else
- callOperation(operationValueAdd, result.gpr(), op1GPR, op2GPR);
-
- jsValueResult(result.gpr(), node);
-}
-
void SpeculativeJIT::compileObjectOrOtherLogicalNot(Edge nodeUse)
{
JSValueOperand value(this, nodeUse, ManualOperandSpeculation);
GPRReg resultGPR = result.gpr();
GPRTemporary structure;
GPRReg structureGPR = InvalidGPRReg;
+ GPRTemporary scratch;
+ GPRReg scratchGPR = InvalidGPRReg;
- bool masqueradesAsUndefinedWatchpointValid = m_jit.graph().globalObjectFor(m_currentNode->codeOrigin)->masqueradesAsUndefinedWatchpoint()->isStillValid();
+ bool masqueradesAsUndefinedWatchpointValid =
+ masqueradesAsUndefinedWatchpointIsStillValid();
if (!masqueradesAsUndefinedWatchpointValid) {
// The masquerades as undefined case will use the structure register, so allocate it here.
// Do this at the top of the function to avoid branching around a register allocation.
GPRTemporary realStructure(this);
+ GPRTemporary realScratch(this);
structure.adopt(realStructure);
+ scratch.adopt(realScratch);
structureGPR = structure.gpr();
+ scratchGPR = scratch.gpr();
}
- MacroAssembler::Jump notCell = m_jit.branchTest64(MacroAssembler::NonZero, valueGPR, GPRInfo::tagMaskRegister);
+ MacroAssembler::Jump notCell = m_jit.branchIfNotCell(JSValueRegs(valueGPR));
if (masqueradesAsUndefinedWatchpointValid) {
- m_jit.graph().globalObjectFor(m_currentNode->codeOrigin)->masqueradesAsUndefinedWatchpoint()->add(speculationWatchpoint());
DFG_TYPE_CHECK(
- JSValueRegs(valueGPR), nodeUse, (~SpecCell) | SpecObject, m_jit.branchPtr(
- MacroAssembler::Equal,
- MacroAssembler::Address(valueGPR, JSCell::structureOffset()),
- MacroAssembler::TrustedImmPtr(m_jit.vm()->stringStructure.get())));
+ JSValueRegs(valueGPR), nodeUse, (~SpecCell) | SpecObject, m_jit.branchIfNotObject(valueGPR));
} else {
- m_jit.loadPtr(MacroAssembler::Address(valueGPR, JSCell::structureOffset()), structureGPR);
-
DFG_TYPE_CHECK(
- JSValueRegs(valueGPR), nodeUse, (~SpecCell) | SpecObject, m_jit.branchPtr(
- MacroAssembler::Equal,
- structureGPR,
- MacroAssembler::TrustedImmPtr(m_jit.vm()->stringStructure.get())));
+ JSValueRegs(valueGPR), nodeUse, (~SpecCell) | SpecObject, m_jit.branchIfNotObject(valueGPR));
MacroAssembler::Jump isNotMasqueradesAsUndefined =
m_jit.branchTest8(
MacroAssembler::Zero,
- MacroAssembler::Address(structureGPR, Structure::typeInfoFlagsOffset()),
+ MacroAssembler::Address(valueGPR, JSCell::typeInfoFlagsOffset()),
MacroAssembler::TrustedImm32(MasqueradesAsUndefined));
+ m_jit.emitLoadStructure(valueGPR, structureGPR, scratchGPR);
speculationCheck(BadType, JSValueRegs(valueGPR), nodeUse,
m_jit.branchPtr(
MacroAssembler::Equal,
MacroAssembler::Address(structureGPR, Structure::globalObjectOffset()),
- MacroAssembler::TrustedImmPtr(m_jit.graph().globalObjectFor(m_currentNode->codeOrigin))));
+ MacroAssembler::TrustedImmPtr(m_jit.graph().globalObjectFor(m_currentNode->origin.semantic))));
isNotMasqueradesAsUndefined.link(&m_jit);
}
}
case Int32Use: {
- SpeculateIntegerOperand value(this, node->child1());
- GPRTemporary result(this, value);
+ SpeculateInt32Operand value(this, node->child1());
+ GPRTemporary result(this, Reuse, value);
m_jit.compare32(MacroAssembler::Equal, value.gpr(), MacroAssembler::TrustedImm32(0), result.gpr());
m_jit.or32(TrustedImm32(ValueFalse), result.gpr());
jsValueResult(result.gpr(), node, DataFormatJSBoolean);
return;
}
- case NumberUse: {
+ case DoubleRepUse: {
SpeculateDoubleOperand value(this, node->child1());
FPRTemporary scratch(this);
GPRTemporary result(this);
case BooleanUse: {
if (!needsTypeCheck(node->child1(), SpecBoolean)) {
SpeculateBooleanOperand value(this, node->child1());
- GPRTemporary result(this, value);
+ GPRTemporary result(this, Reuse, value);
m_jit.move(value.gpr(), result.gpr());
m_jit.xor64(TrustedImm32(true), result.gpr());
JITCompiler::Jump slowCase = m_jit.branchTest64(JITCompiler::NonZero, resultGPR, TrustedImm32(static_cast<int32_t>(~1)));
addSlowPathGenerator(
- slowPathCall(slowCase, this, dfgConvertJSValueToBoolean, resultGPR, arg1GPR));
+ slowPathCall(slowCase, this, operationConvertJSValueToBoolean, resultGPR, arg1GPR));
m_jit.xor64(TrustedImm32(static_cast<int32_t>(ValueTrue)), resultGPR);
jsValueResult(resultGPR, node, DataFormatJSBoolean, UseChildrenCalledExplicitly);
return;
}
-
+ case StringUse:
+ return compileStringZeroLength(node);
+
default:
- RELEASE_ASSERT_NOT_REACHED();
+ DFG_CRASH(m_jit.graph(), node, "Bad use kind");
break;
}
}
-void SpeculativeJIT::emitObjectOrOtherBranch(Edge nodeUse, BlockIndex taken, BlockIndex notTaken)
+void SpeculativeJIT::emitObjectOrOtherBranch(Edge nodeUse, BasicBlock* taken, BasicBlock* notTaken)
{
JSValueOperand value(this, nodeUse, ManualOperandSpeculation);
GPRTemporary scratch(this);
+ GPRTemporary structure;
GPRReg valueGPR = value.gpr();
GPRReg scratchGPR = scratch.gpr();
-
- MacroAssembler::Jump notCell = m_jit.branchTest64(MacroAssembler::NonZero, valueGPR, GPRInfo::tagMaskRegister);
- if (m_jit.graph().globalObjectFor(m_currentNode->codeOrigin)->masqueradesAsUndefinedWatchpoint()->isStillValid()) {
- m_jit.graph().globalObjectFor(m_currentNode->codeOrigin)->masqueradesAsUndefinedWatchpoint()->add(speculationWatchpoint());
+ GPRReg structureGPR = InvalidGPRReg;
+
+ if (!masqueradesAsUndefinedWatchpointIsStillValid()) {
+ GPRTemporary realStructure(this);
+ structure.adopt(realStructure);
+ structureGPR = structure.gpr();
+ }
+ MacroAssembler::Jump notCell = m_jit.branchIfNotCell(JSValueRegs(valueGPR));
+ if (masqueradesAsUndefinedWatchpointIsStillValid()) {
DFG_TYPE_CHECK(
- JSValueRegs(valueGPR), nodeUse, (~SpecCell) | SpecObject, m_jit.branchPtr(
- MacroAssembler::Equal,
- MacroAssembler::Address(valueGPR, JSCell::structureOffset()),
- MacroAssembler::TrustedImmPtr(m_jit.vm()->stringStructure.get())));
+ JSValueRegs(valueGPR), nodeUse, (~SpecCell) | SpecObject, m_jit.branchIfNotObject(valueGPR));
} else {
- m_jit.loadPtr(MacroAssembler::Address(valueGPR, JSCell::structureOffset()), scratchGPR);
-
DFG_TYPE_CHECK(
- JSValueRegs(valueGPR), nodeUse, (~SpecCell) | SpecObject, m_jit.branchPtr(
- MacroAssembler::Equal,
- scratchGPR,
- MacroAssembler::TrustedImmPtr(m_jit.vm()->stringStructure.get())));
+ JSValueRegs(valueGPR), nodeUse, (~SpecCell) | SpecObject, m_jit.branchIfNotObject(valueGPR));
- JITCompiler::Jump isNotMasqueradesAsUndefined = m_jit.branchTest8(JITCompiler::Zero, MacroAssembler::Address(scratchGPR, Structure::typeInfoFlagsOffset()), TrustedImm32(MasqueradesAsUndefined));
+ JITCompiler::Jump isNotMasqueradesAsUndefined = m_jit.branchTest8(
+ JITCompiler::Zero,
+ MacroAssembler::Address(valueGPR, JSCell::typeInfoFlagsOffset()),
+ TrustedImm32(MasqueradesAsUndefined));
+ m_jit.emitLoadStructure(valueGPR, structureGPR, scratchGPR);
speculationCheck(BadType, JSValueRegs(valueGPR), nodeUse,
m_jit.branchPtr(
MacroAssembler::Equal,
- MacroAssembler::Address(scratchGPR, Structure::globalObjectOffset()),
- MacroAssembler::TrustedImmPtr(m_jit.graph().globalObjectFor(m_currentNode->codeOrigin))));
+ MacroAssembler::Address(structureGPR, Structure::globalObjectOffset()),
+ MacroAssembler::TrustedImmPtr(m_jit.graph().globalObjectFor(m_currentNode->origin.semantic))));
isNotMasqueradesAsUndefined.link(&m_jit);
}
void SpeculativeJIT::emitBranch(Node* node)
{
- BlockIndex taken = node->takenBlockIndex();
- BlockIndex notTaken = node->notTakenBlockIndex();
+ BasicBlock* taken = node->branchData()->taken.block;
+ BasicBlock* notTaken = node->branchData()->notTaken.block;
switch (node->child1().useKind()) {
case ObjectOrOtherUse: {
}
case Int32Use:
- case NumberUse: {
+ case DoubleRepUse: {
if (node->child1().useKind() == Int32Use) {
bool invert = false;
if (taken == nextBlock()) {
invert = true;
- BlockIndex tmp = taken;
+ BasicBlock* tmp = taken;
taken = notTaken;
notTaken = tmp;
}
- SpeculateIntegerOperand value(this, node->child1());
+ SpeculateInt32Operand value(this, node->child1());
branchTest32(invert ? MacroAssembler::Zero : MacroAssembler::NonZero, value.gpr(), taken);
} else {
SpeculateDoubleOperand value(this, node->child1());
return;
}
+ case StringUse: {
+ emitStringBranch(node->child1(), taken, notTaken);
+ return;
+ }
+
case UntypedUse:
case BooleanUse: {
JSValueOperand value(this, node->child1(), ManualOperandSpeculation);
if (taken == nextBlock()) {
condition = MacroAssembler::Zero;
- BlockIndex tmp = taken;
+ BasicBlock* tmp = taken;
taken = notTaken;
notTaken = tmp;
}
value.use();
silentSpillAllRegisters(resultGPR);
- callOperation(dfgConvertJSValueToBoolean, resultGPR, valueGPR);
+ callOperation(operationConvertJSValueToBoolean, resultGPR, valueGPR);
silentFillAllRegisters(resultGPR);
branchTest32(MacroAssembler::NonZero, resultGPR, taken);
}
default:
- RELEASE_ASSERT_NOT_REACHED();
+ DFG_CRASH(m_jit.graph(), m_currentNode, "Bad use kind");
}
}
switch (op) {
case JSConstant:
+ case DoubleConstant:
+ case Int52Constant:
+ case PhantomDirectArguments:
+ case PhantomClonedArguments:
initConstantInfo(node);
break;
- case PhantomArguments:
- initConstantInfo(node);
- break;
-
- case WeakJSConstant:
- m_jit.addWeakReference(node->weakConstant());
- initConstantInfo(node);
- break;
-
case Identity: {
- // CSE should always eliminate this.
- RELEASE_ASSERT_NOT_REACHED();
+ speculate(node, node->child1());
+ switch (node->child1().useKind()) {
+ case DoubleRepUse:
+ case DoubleRepRealUse:
+ case DoubleRepMachineIntUse: {
+ SpeculateDoubleOperand op(this, node->child1());
+ FPRTemporary scratch(this, op);
+ m_jit.moveDouble(op.fpr(), scratch.fpr());
+ doubleResult(scratch.fpr(), node);
+ break;
+ }
+ case Int52RepUse: {
+ SpeculateInt52Operand op(this, node->child1());
+ GPRTemporary result(this, Reuse, op);
+ m_jit.move(op.gpr(), result.gpr());
+ int52Result(result.gpr(), node);
+ break;
+ }
+ default: {
+ JSValueOperand op(this, node->child1());
+ GPRTemporary result(this, Reuse, op);
+ m_jit.move(op.gpr(), result.gpr());
+ jsValueResult(result.gpr(), node);
+ break;
+ }
+ } // switch
break;
}
case GetLocal: {
- SpeculatedType prediction = node->variableAccessData()->prediction();
AbstractValue& value = m_state.variables().operand(node->local());
- // If we have no prediction for this local, then don't attempt to compile.
- if (prediction == SpecNone) {
- terminateSpeculativeExecution(InadequateCoverage, JSValueRegs(), 0);
- break;
- }
-
// If the CFA is tracking this variable and it found that the variable
// cannot have been assigned, then don't attempt to proceed.
if (value.isClear()) {
- // FIXME: We should trap instead.
- // https://bugs.webkit.org/show_bug.cgi?id=110383
- terminateSpeculativeExecution(InadequateCoverage, JSValueRegs(), 0);
+ m_compileOkay = false;
break;
}
- if (node->variableAccessData()->shouldUseDoubleFormat()) {
+ switch (node->variableAccessData()->flushFormat()) {
+ case FlushedDouble: {
FPRTemporary result(this);
- m_jit.loadDouble(JITCompiler::addressFor(node->local()), result.fpr());
+ m_jit.loadDouble(JITCompiler::addressFor(node->machineLocal()), result.fpr());
VirtualRegister virtualRegister = node->virtualRegister();
m_fprs.retain(result.fpr(), virtualRegister, SpillOrderDouble);
- m_generationInfo[virtualRegister].initDouble(node, node->refCount(), result.fpr());
+ generationInfoFromVirtualRegister(virtualRegister).initDouble(node, node->refCount(), result.fpr());
break;
}
- if (isInt32Speculation(value.m_type)) {
+ case FlushedInt32: {
GPRTemporary result(this);
- m_jit.load32(JITCompiler::payloadFor(node->local()), result.gpr());
+ m_jit.load32(JITCompiler::payloadFor(node->machineLocal()), result.gpr());
- // Like integerResult, but don't useChildren - our children are phi nodes,
+ // Like int32Result, but don't useChildren - our children are phi nodes,
// and don't represent values within this dataflow with virtual registers.
VirtualRegister virtualRegister = node->virtualRegister();
m_gprs.retain(result.gpr(), virtualRegister, SpillOrderInteger);
- m_generationInfo[virtualRegister].initInteger(node, node->refCount(), result.gpr());
+ generationInfoFromVirtualRegister(virtualRegister).initInt32(node, node->refCount(), result.gpr());
+ break;
+ }
+
+ case FlushedInt52: {
+ GPRTemporary result(this);
+ m_jit.load64(JITCompiler::addressFor(node->machineLocal()), result.gpr());
+
+ VirtualRegister virtualRegister = node->virtualRegister();
+ m_gprs.retain(result.gpr(), virtualRegister, SpillOrderJS);
+ generationInfoFromVirtualRegister(virtualRegister).initInt52(node, node->refCount(), result.gpr());
+ break;
+ }
+
+ default:
+ GPRTemporary result(this);
+ m_jit.load64(JITCompiler::addressFor(node->machineLocal()), result.gpr());
+
+ // Like jsValueResult, but don't useChildren - our children are phi nodes,
+ // and don't represent values within this dataflow with virtual registers.
+ VirtualRegister virtualRegister = node->virtualRegister();
+ m_gprs.retain(result.gpr(), virtualRegister, SpillOrderJS);
+
+ DataFormat format;
+ if (isCellSpeculation(value.m_type))
+ format = DataFormatJSCell;
+ else if (isBooleanSpeculation(value.m_type))
+ format = DataFormatJSBoolean;
+ else
+ format = DataFormatJS;
+
+ generationInfoFromVirtualRegister(virtualRegister).initJSValue(node, node->refCount(), result.gpr(), format);
break;
}
-
- GPRTemporary result(this);
- m_jit.load64(JITCompiler::addressFor(node->local()), result.gpr());
-
- // Like jsValueResult, but don't useChildren - our children are phi nodes,
- // and don't represent values within this dataflow with virtual registers.
- VirtualRegister virtualRegister = node->virtualRegister();
- m_gprs.retain(result.gpr(), virtualRegister, SpillOrderJS);
-
- DataFormat format;
- if (isCellSpeculation(value.m_type))
- format = DataFormatJSCell;
- else if (isBooleanSpeculation(value.m_type))
- format = DataFormatJSBoolean;
- else
- format = DataFormatJS;
-
- m_generationInfo[virtualRegister].initJSValue(node, node->refCount(), result.gpr(), format);
break;
}
case GetLocalUnlinked: {
GPRTemporary result(this);
- m_jit.load64(JITCompiler::addressFor(node->unlinkedLocal()), result.gpr());
+ m_jit.load64(JITCompiler::addressFor(node->unlinkedMachineLocal()), result.gpr());
jsValueResult(result.gpr(), node);
break;
}
- case MovHintAndCheck: {
- compileMovHintAndCheck(node);
+ case MovHint: {
+ compileMovHint(m_currentNode);
+ noResult(node);
break;
}
- case InlineStart: {
- compileInlineStart(node);
- break;
- }
-
- case MovHint:
case ZombieHint: {
- RELEASE_ASSERT_NOT_REACHED();
+ recordSetLocal(m_currentNode->unlinkedLocal(), VirtualRegister(), DataFormatDead);
+ noResult(node);
break;
}
-
- case SetLocal: {
- // SetLocal doubles as a hint as to where a node will be stored and
- // as a speculation point. So before we speculate make sure that we
- // know where the child of this node needs to go in the virtual
- // stack.
- compileMovHint(node);
-
- if (node->variableAccessData()->shouldUnboxIfPossible()) {
- if (node->variableAccessData()->shouldUseDoubleFormat()) {
- SpeculateDoubleOperand value(this, node->child1());
- m_jit.storeDouble(value.fpr(), JITCompiler::addressFor(node->local()));
- noResult(node);
- // Indicate that it's no longer necessary to retrieve the value of
- // this bytecode variable from registers or other locations in the stack,
- // but that it is stored as a double.
- recordSetLocal(node->local(), ValueSource(DoubleInJSStack));
- break;
- }
- SpeculatedType predictedType = node->variableAccessData()->argumentAwarePrediction();
- if (isInt32Speculation(predictedType)) {
- SpeculateIntegerOperand value(this, node->child1());
- m_jit.store32(value.gpr(), JITCompiler::payloadFor(node->local()));
- noResult(node);
- recordSetLocal(node->local(), ValueSource(Int32InJSStack));
- break;
- }
- if (isCellSpeculation(predictedType)) {
- SpeculateCellOperand cell(this, node->child1());
- GPRReg cellGPR = cell.gpr();
- m_jit.store64(cellGPR, JITCompiler::addressFor(node->local()));
- noResult(node);
- recordSetLocal(node->local(), ValueSource(CellInJSStack));
- break;
- }
- if (isBooleanSpeculation(predictedType)) {
- SpeculateBooleanOperand boolean(this, node->child1());
- m_jit.store64(boolean.gpr(), JITCompiler::addressFor(node->local()));
- noResult(node);
- recordSetLocal(node->local(), ValueSource(BooleanInJSStack));
- break;
- }
+ case SetLocal: {
+ switch (node->variableAccessData()->flushFormat()) {
+ case FlushedDouble: {
+ SpeculateDoubleOperand value(this, node->child1());
+ m_jit.storeDouble(value.fpr(), JITCompiler::addressFor(node->machineLocal()));
+ noResult(node);
+ // Indicate that it's no longer necessary to retrieve the value of
+ // this bytecode variable from registers or other locations in the stack,
+ // but that it is stored as a double.
+ recordSetLocal(DataFormatDouble);
+ break;
+ }
+
+ case FlushedInt32: {
+ SpeculateInt32Operand value(this, node->child1());
+ m_jit.store32(value.gpr(), JITCompiler::payloadFor(node->machineLocal()));
+ noResult(node);
+ recordSetLocal(DataFormatInt32);
+ break;
+ }
+
+ case FlushedInt52: {
+ SpeculateInt52Operand value(this, node->child1());
+ m_jit.store64(value.gpr(), JITCompiler::addressFor(node->machineLocal()));
+ noResult(node);
+ recordSetLocal(DataFormatInt52);
+ break;
+ }
+
+ case FlushedCell: {
+ SpeculateCellOperand cell(this, node->child1());
+ GPRReg cellGPR = cell.gpr();
+ m_jit.store64(cellGPR, JITCompiler::addressFor(node->machineLocal()));
+ noResult(node);
+ recordSetLocal(DataFormatCell);
+ break;
+ }
+
+ case FlushedBoolean: {
+ SpeculateBooleanOperand boolean(this, node->child1());
+ m_jit.store64(boolean.gpr(), JITCompiler::addressFor(node->machineLocal()));
+ noResult(node);
+ recordSetLocal(DataFormatBoolean);
+ break;
+ }
+
+ case FlushedJSValue: {
+ JSValueOperand value(this, node->child1());
+ m_jit.store64(value.gpr(), JITCompiler::addressFor(node->machineLocal()));
+ noResult(node);
+ recordSetLocal(dataFormatFor(node->variableAccessData()->flushFormat()));
+ break;
+ }
+
+ default:
+ DFG_CRASH(m_jit.graph(), node, "Bad flush format");
+ break;
}
-
- JSValueOperand value(this, node->child1());
- m_jit.store64(value.gpr(), JITCompiler::addressFor(node->local()));
- noResult(node);
-
- recordSetLocal(node->local(), ValueSource(ValueInJSStack));
-
- // If we're storing an arguments object that has been optimized away,
- // our variable event stream for OSR exit now reflects the optimized
- // value (JSValue()). On the slow path, we want an arguments object
- // instead. We add an additional move hint to show OSR exit that it
- // needs to reconstruct the arguments object.
- if (node->child1()->op() == PhantomArguments)
- compileMovHint(node);
break;
}
// But it may be profitable to use this as a hook to run speculation checks
// on arguments, thereby allowing us to trivially eliminate such checks if
// the argument is not used.
+ recordSetLocal(dataFormatFor(node->variableAccessData()->flushFormat()));
break;
case BitAnd:
case BitOr:
case BitXor:
- if (isInt32Constant(node->child1().node())) {
- SpeculateIntegerOperand op2(this, node->child2());
- GPRTemporary result(this, op2);
+ if (node->child1()->isInt32Constant()) {
+ SpeculateInt32Operand op2(this, node->child2());
+ GPRTemporary result(this, Reuse, op2);
- bitOp(op, valueOfInt32Constant(node->child1().node()), op2.gpr(), result.gpr());
+ bitOp(op, node->child1()->asInt32(), op2.gpr(), result.gpr());
- integerResult(result.gpr(), node);
- } else if (isInt32Constant(node->child2().node())) {
- SpeculateIntegerOperand op1(this, node->child1());
- GPRTemporary result(this, op1);
+ int32Result(result.gpr(), node);
+ } else if (node->child2()->isInt32Constant()) {
+ SpeculateInt32Operand op1(this, node->child1());
+ GPRTemporary result(this, Reuse, op1);
- bitOp(op, valueOfInt32Constant(node->child2().node()), op1.gpr(), result.gpr());
+ bitOp(op, node->child2()->asInt32(), op1.gpr(), result.gpr());
- integerResult(result.gpr(), node);
+ int32Result(result.gpr(), node);
} else {
- SpeculateIntegerOperand op1(this, node->child1());
- SpeculateIntegerOperand op2(this, node->child2());
- GPRTemporary result(this, op1, op2);
+ SpeculateInt32Operand op1(this, node->child1());
+ SpeculateInt32Operand op2(this, node->child2());
+ GPRTemporary result(this, Reuse, op1, op2);
GPRReg reg1 = op1.gpr();
GPRReg reg2 = op2.gpr();
bitOp(op, reg1, reg2, result.gpr());
- integerResult(result.gpr(), node);
+ int32Result(result.gpr(), node);
}
break;
case BitRShift:
case BitLShift:
case BitURShift:
- if (isInt32Constant(node->child2().node())) {
- SpeculateIntegerOperand op1(this, node->child1());
- GPRTemporary result(this, op1);
+ if (node->child2()->isInt32Constant()) {
+ SpeculateInt32Operand op1(this, node->child1());
+ GPRTemporary result(this, Reuse, op1);
- shiftOp(op, op1.gpr(), valueOfInt32Constant(node->child2().node()) & 0x1f, result.gpr());
+ shiftOp(op, op1.gpr(), node->child2()->asInt32() & 0x1f, result.gpr());
- integerResult(result.gpr(), node);
+ int32Result(result.gpr(), node);
} else {
// Do not allow shift amount to be used as the result, MacroAssembler does not permit this.
- SpeculateIntegerOperand op1(this, node->child1());
- SpeculateIntegerOperand op2(this, node->child2());
- GPRTemporary result(this, op1);
+ SpeculateInt32Operand op1(this, node->child1());
+ SpeculateInt32Operand op2(this, node->child2());
+ GPRTemporary result(this, Reuse, op1);
GPRReg reg1 = op1.gpr();
GPRReg reg2 = op2.gpr();
shiftOp(op, reg1, reg2, result.gpr());
- integerResult(result.gpr(), node);
+ int32Result(result.gpr(), node);
}
break;
break;
}
- case Int32ToDouble:
- case ForwardInt32ToDouble: {
- compileInt32ToDouble(node);
+ case DoubleRep: {
+ compileDoubleRep(node);
+ break;
+ }
+
+ case ValueRep: {
+ compileValueRep(node);
+ break;
+ }
+
+ case Int52Rep: {
+ switch (node->child1().useKind()) {
+ case Int32Use: {
+ SpeculateInt32Operand operand(this, node->child1());
+ GPRTemporary result(this, Reuse, operand);
+
+ m_jit.signExtend32ToPtr(operand.gpr(), result.gpr());
+
+ strictInt52Result(result.gpr(), node);
+ break;
+ }
+
+ case MachineIntUse: {
+ GPRTemporary result(this);
+ GPRReg resultGPR = result.gpr();
+
+ convertMachineInt(node->child1(), resultGPR);
+
+ strictInt52Result(resultGPR, node);
+ break;
+ }
+
+ case DoubleRepMachineIntUse: {
+ SpeculateDoubleOperand value(this, node->child1());
+ FPRReg valueFPR = value.fpr();
+
+ GPRFlushedCallResult result(this);
+ GPRReg resultGPR = result.gpr();
+
+ flushRegisters();
+
+ callOperation(operationConvertDoubleToInt52, resultGPR, valueFPR);
+
+ DFG_TYPE_CHECK(
+ JSValueRegs(), node->child1(), SpecInt52AsDouble,
+ m_jit.branch64(
+ JITCompiler::Equal, resultGPR,
+ JITCompiler::TrustedImm64(JSValue::notInt52)));
+
+ strictInt52Result(resultGPR, node);
+ break;
+ }
+
+ default:
+ DFG_CRASH(m_jit.graph(), node, "Bad use kind");
+ }
+ break;
+ }
+
+ case ValueAdd: {
+ JSValueOperand op1(this, node->child1());
+ JSValueOperand op2(this, node->child2());
+
+ GPRReg op1GPR = op1.gpr();
+ GPRReg op2GPR = op2.gpr();
+
+ flushRegisters();
+
+ GPRFlushedCallResult result(this);
+ if (isKnownNotNumber(node->child1().node()) || isKnownNotNumber(node->child2().node()))
+ callOperation(operationValueAddNotNumber, result.gpr(), op1GPR, op2GPR);
+ else
+ callOperation(operationValueAdd, result.gpr(), op1GPR, op2GPR);
+
+ jsValueResult(result.gpr(), node);
break;
}
- case ValueAdd:
case ArithAdd:
compileAdd(node);
break;
+
+ case ArithClz32:
+ compileArithClz32(node);
+ break;
case MakeRope:
compileMakeRope(node);
compileArithMul(node);
break;
- case ArithIMul:
- compileArithIMul(node);
- break;
-
case ArithDiv: {
- switch (node->binaryUseKind()) {
- case Int32Use: {
-#if CPU(X86) || CPU(X86_64)
- compileIntegerArithDivForX86(node);
-#elif CPU(ARM64)
- compileIntegerArithDivForARM64(node);
-#else
- // See DFGFixupPhase - on any architecture other than X86[_64] we'll force the prediction to double.
- ASSERT_NOT_REACHED();
-#endif
- break;
- }
-
- case NumberUse: {
- SpeculateDoubleOperand op1(this, node->child1());
- SpeculateDoubleOperand op2(this, node->child2());
- FPRTemporary result(this, op1);
-
- FPRReg reg1 = op1.fpr();
- FPRReg reg2 = op2.fpr();
- m_jit.divDouble(reg1, reg2, result.fpr());
-
- doubleResult(result.fpr(), node);
- break;
- }
-
- default:
- RELEASE_ASSERT_NOT_REACHED();
- break;
- }
+ compileArithDiv(node);
break;
}
case ArithAbs: {
switch (node->child1().useKind()) {
case Int32Use: {
- SpeculateIntegerOperand op1(this, node->child1());
+ SpeculateStrictInt32Operand op1(this, node->child1());
GPRTemporary result(this);
GPRTemporary scratch(this);
- m_jit.zeroExtend32ToPtr(op1.gpr(), result.gpr());
+ m_jit.move(op1.gpr(), result.gpr());
m_jit.rshift32(result.gpr(), MacroAssembler::TrustedImm32(31), scratch.gpr());
m_jit.add32(scratch.gpr(), result.gpr());
m_jit.xor32(scratch.gpr(), result.gpr());
speculationCheck(Overflow, JSValueRegs(), 0, m_jit.branch32(MacroAssembler::Equal, result.gpr(), MacroAssembler::TrustedImm32(1 << 31)));
- integerResult(result.gpr(), node);
+ int32Result(result.gpr(), node);
break;
}
- case NumberUse: {
+ case DoubleRepUse: {
SpeculateDoubleOperand op1(this, node->child1());
FPRTemporary result(this);
}
default:
- RELEASE_ASSERT_NOT_REACHED();
+ DFG_CRASH(m_jit.graph(), node, "Bad use kind");
break;
}
break;
case Int32Use: {
SpeculateStrictInt32Operand op1(this, node->child1());
SpeculateStrictInt32Operand op2(this, node->child2());
- GPRTemporary result(this, op1);
+ GPRTemporary result(this, Reuse, op1);
MacroAssembler::Jump op1Less = m_jit.branch32(op == ArithMin ? MacroAssembler::LessThan : MacroAssembler::GreaterThan, op1.gpr(), op2.gpr());
m_jit.move(op2.gpr(), result.gpr());
} else
op1Less.link(&m_jit);
- integerResult(result.gpr(), node);
+ int32Result(result.gpr(), node);
break;
}
- case NumberUse: {
+ case DoubleRepUse: {
SpeculateDoubleOperand op1(this, node->child1());
SpeculateDoubleOperand op2(this, node->child2());
FPRTemporary result(this, op1);
}
default:
- RELEASE_ASSERT_NOT_REACHED();
+ DFG_CRASH(m_jit.graph(), node, "Bad use kind");
break;
}
break;
}
-
- case ArithSqrt: {
+
+ case ArithPow:
+ compileArithPow(node);
+ break;
+
+ case ArithSqrt:
+ compileArithSqrt(node);
+ break;
+
+ case ArithFRound: {
SpeculateDoubleOperand op1(this, node->child1());
FPRTemporary result(this, op1);
- m_jit.sqrtDouble(op1.fpr(), result.fpr());
+ m_jit.convertDoubleToFloat(op1.fpr(), result.fpr());
+ m_jit.convertFloatToDouble(result.fpr(), result.fpr());
+
+ doubleResult(result.fpr(), node);
+ break;
+ }
+
+ case ArithRound:
+ compileArithRound(node);
+ break;
+
+ case ArithSin: {
+ SpeculateDoubleOperand op1(this, node->child1());
+ FPRReg op1FPR = op1.fpr();
+
+ flushRegisters();
+
+ FPRResult result(this);
+ callOperation(sin, result.fpr(), op1FPR);
+ doubleResult(result.fpr(), node);
+ break;
+ }
+
+ case ArithCos: {
+ SpeculateDoubleOperand op1(this, node->child1());
+ FPRReg op1FPR = op1.fpr();
+
+ flushRegisters();
+ FPRResult result(this);
+ callOperation(cos, result.fpr(), op1FPR);
doubleResult(result.fpr(), node);
break;
}
+ case ArithLog:
+ compileArithLog(node);
+ break;
+
case LogicalNot:
compileLogicalNot(node);
break;
break;
case CompareEqConstant:
- ASSERT(isNullConstant(node->child2().node()));
+ ASSERT(node->child2()->asJSValue().isNull());
if (nonSpeculativeCompareNull(node, node->child1()))
return;
break;
return;
break;
- case CompareStrictEqConstant:
- if (compileStrictEqForConstant(node, node->child1(), valueOfJSConstant(node->child2().node())))
- return;
- break;
-
case CompareStrictEq:
if (compileStrictEq(node))
return;
switch (node->arrayMode().type()) {
case Array::SelectUsingPredictions:
case Array::ForceExit:
- RELEASE_ASSERT_NOT_REACHED();
- terminateSpeculativeExecution(InadequateCoverage, JSValueRegs(), 0);
+ DFG_CRASH(m_jit.graph(), node, "Bad array mode type");
break;
case Array::Generic: {
JSValueOperand base(this, node->child1());
GPRReg propertyGPR = property.gpr();
flushRegisters();
- GPRResult result(this);
+ GPRFlushedCallResult result(this);
callOperation(operationGetByVal, result.gpr(), baseGPR, propertyGPR);
jsValueResult(result.gpr(), node);
GPRTemporary result(this);
m_jit.load64(MacroAssembler::BaseIndex(storageReg, propertyReg, MacroAssembler::TimesEight), result.gpr());
- speculationCheck(LoadFromHole, JSValueRegs(), 0, m_jit.branchTest64(MacroAssembler::Zero, result.gpr()));
- jsValueResult(result.gpr(), node, node->arrayMode().type() == Array::Int32 ? DataFormatJSInteger : DataFormatJS);
+ if (node->arrayMode().isSaneChain()) {
+ ASSERT(node->arrayMode().type() == Array::Contiguous);
+ JITCompiler::Jump notHole = m_jit.branchTest64(
+ MacroAssembler::NonZero, result.gpr());
+ m_jit.move(TrustedImm64(JSValue::encode(jsUndefined())), result.gpr());
+ notHole.link(&m_jit);
+ } else {
+ speculationCheck(
+ LoadFromHole, JSValueRegs(), 0,
+ m_jit.branchTest64(MacroAssembler::Zero, result.gpr()));
+ }
+ jsValueResult(result.gpr(), node, node->arrayMode().type() == Array::Int32 ? DataFormatJSInt32 : DataFormatJS);
break;
}
case Array::Double: {
if (node->arrayMode().isInBounds()) {
- if (node->arrayMode().isSaneChain()) {
- JSGlobalObject* globalObject = m_jit.globalObjectFor(node->codeOrigin);
- ASSERT(globalObject->arrayPrototypeChainIsSane());
- globalObject->arrayPrototype()->structure()->addTransitionWatchpoint(speculationWatchpoint());
- globalObject->objectPrototype()->structure()->addTransitionWatchpoint(speculationWatchpoint());
- }
-
SpeculateStrictInt32Operand property(this, node->child2());
StorageOperand storage(this, node->child3());
case Array::String:
compileGetByValOnString(node);
break;
- case Array::Arguments:
- compileGetByValOnArguments(node);
- break;
- case Array::Int8Array:
- compileGetByValOnIntTypedArray(m_jit.vm()->int8ArrayDescriptor(), node, sizeof(int8_t), SignedTypedArray);
- break;
- case Array::Int16Array:
- compileGetByValOnIntTypedArray(m_jit.vm()->int16ArrayDescriptor(), node, sizeof(int16_t), SignedTypedArray);
+ case Array::DirectArguments:
+ compileGetByValOnDirectArguments(node);
break;
- case Array::Int32Array:
- compileGetByValOnIntTypedArray(m_jit.vm()->int32ArrayDescriptor(), node, sizeof(int32_t), SignedTypedArray);
- break;
- case Array::Uint8Array:
- compileGetByValOnIntTypedArray(m_jit.vm()->uint8ArrayDescriptor(), node, sizeof(uint8_t), UnsignedTypedArray);
- break;
- case Array::Uint8ClampedArray:
- compileGetByValOnIntTypedArray(m_jit.vm()->uint8ClampedArrayDescriptor(), node, sizeof(uint8_t), UnsignedTypedArray);
- break;
- case Array::Uint16Array:
- compileGetByValOnIntTypedArray(m_jit.vm()->uint16ArrayDescriptor(), node, sizeof(uint16_t), UnsignedTypedArray);
- break;
- case Array::Uint32Array:
- compileGetByValOnIntTypedArray(m_jit.vm()->uint32ArrayDescriptor(), node, sizeof(uint32_t), UnsignedTypedArray);
- break;
- case Array::Float32Array:
- compileGetByValOnFloatTypedArray(m_jit.vm()->float32ArrayDescriptor(), node, sizeof(float));
- break;
- case Array::Float64Array:
- compileGetByValOnFloatTypedArray(m_jit.vm()->float64ArrayDescriptor(), node, sizeof(double));
- break;
- default:
- RELEASE_ASSERT_NOT_REACHED();
+ case Array::ScopedArguments:
+ compileGetByValOnScopedArguments(node);
break;
- }
+ default: {
+ TypedArrayType type = node->arrayMode().typedArrayType();
+ if (isInt(type))
+ compileGetByValOnIntTypedArray(node, type);
+ else
+ compileGetByValOnFloatTypedArray(node, type);
+ } }
break;
}
+ case PutByValDirect:
case PutByVal:
case PutByValAlias: {
Edge child1 = m_jit.graph().varArgChild(node, 0);
switch (arrayMode.type()) {
case Array::SelectUsingPredictions:
case Array::ForceExit:
- RELEASE_ASSERT_NOT_REACHED();
- terminateSpeculativeExecution(InadequateCoverage, JSValueRegs(), 0);
- alreadyHandled = true;
+ DFG_CRASH(m_jit.graph(), node, "Bad array mode type");
break;
case Array::Generic: {
- RELEASE_ASSERT(node->op() == PutByVal);
+ DFG_ASSERT(m_jit.graph(), node, node->op() == PutByVal || node->op() == PutByValDirect);
JSValueOperand arg1(this, child1);
JSValueOperand arg2(this, child2);
GPRReg arg2GPR = arg2.gpr();
GPRReg arg3GPR = arg3.gpr();
flushRegisters();
-
- callOperation(m_jit.strictModeFor(node->codeOrigin) ? operationPutByValStrict : operationPutByValNonStrict, arg1GPR, arg2GPR, arg3GPR);
+ if (node->op() == PutByValDirect)
+ callOperation(m_jit.isStrictModeFor(node->origin.semantic) ? operationPutByValDirectStrict : operationPutByValDirectNonStrict, arg1GPR, arg2GPR, arg3GPR);
+ else
+ callOperation(m_jit.isStrictModeFor(node->origin.semantic) ? operationPutByValStrict : operationPutByValNonStrict, arg1GPR, arg2GPR, arg3GPR);
noResult(node);
alreadyHandled = true;
m_jit.branch64(
MacroAssembler::Below, valueReg, GPRInfo::tagTypeNumberRegister));
}
-
- if (arrayMode.type() == Array::Contiguous && Heap::isWriteBarrierEnabled()) {
- GPRTemporary scratch(this);
- writeBarrier(baseReg, value.gpr(), child3, WriteBarrierForPropertyAccess, scratch.gpr());
- }
StorageOperand storage(this, child4);
GPRReg storageReg = storage.gpr();
if (arrayMode.isInBounds()) {
speculationCheck(
- StoreToHoleOrOutOfBounds, JSValueRegs(), 0,
+ OutOfBounds, JSValueRegs(), 0,
m_jit.branch32(MacroAssembler::AboveOrEqual, propertyReg, MacroAssembler::Address(storageReg, Butterfly::offsetOfPublicLength())));
} else {
MacroAssembler::Jump inBounds = m_jit.branch32(MacroAssembler::Below, propertyReg, MacroAssembler::Address(storageReg, Butterfly::offsetOfPublicLength()));
storage.use();
if (arrayMode.isOutOfBounds()) {
- addSlowPathGenerator(
- slowPathCall(
+ if (node->op() == PutByValDirect) {
+ addSlowPathGenerator(slowPathCall(
+ slowCase, this,
+ m_jit.codeBlock()->isStrictMode() ? operationPutByValDirectBeyondArrayBoundsStrict : operationPutByValDirectBeyondArrayBoundsNonStrict,
+ NoResult, baseReg, propertyReg, valueReg));
+ } else {
+ addSlowPathGenerator(slowPathCall(
slowCase, this,
m_jit.codeBlock()->isStrictMode() ? operationPutByValBeyondArrayBoundsStrict : operationPutByValBeyondArrayBoundsNonStrict,
NoResult, baseReg, propertyReg, valueReg));
+ }
}
noResult(node, UseChildrenCalledExplicitly);
if (!m_compileOkay)
return;
-
- if (Heap::isWriteBarrierEnabled()) {
- GPRTemporary scratch(this);
- writeBarrier(baseReg, value.gpr(), child3, WriteBarrierForPropertyAccess, scratch.gpr());
- }
StorageOperand storage(this, child4);
GPRReg storageReg = storage.gpr();
storage.use();
if (!slowCases.empty()) {
- addSlowPathGenerator(
- slowPathCall(
+ if (node->op() == PutByValDirect) {
+ addSlowPathGenerator(slowPathCall(
+ slowCases, this,
+ m_jit.codeBlock()->isStrictMode() ? operationPutByValDirectBeyondArrayBoundsStrict : operationPutByValDirectBeyondArrayBoundsNonStrict,
+ NoResult, baseReg, propertyReg, valueReg));
+ } else {
+ addSlowPathGenerator(slowPathCall(
slowCases, this,
m_jit.codeBlock()->isStrictMode() ? operationPutByValBeyondArrayBoundsStrict : operationPutByValBeyondArrayBoundsNonStrict,
NoResult, baseReg, propertyReg, valueReg));
+ }
}
noResult(node, UseChildrenCalledExplicitly);
break;
}
- case Array::Arguments: {
- JSValueOperand value(this, child3);
- GPRTemporary scratch(this);
- GPRTemporary scratch2(this);
-
- GPRReg valueReg = value.gpr();
- GPRReg scratchReg = scratch.gpr();
- GPRReg scratch2Reg = scratch2.gpr();
-
- if (!m_compileOkay)
- return;
-
- // Two really lame checks.
- speculationCheck(
- Uncountable, JSValueSource(), 0,
- m_jit.branch32(
- MacroAssembler::AboveOrEqual, propertyReg,
- MacroAssembler::Address(baseReg, OBJECT_OFFSETOF(Arguments, m_numArguments))));
- speculationCheck(
- Uncountable, JSValueSource(), 0,
- m_jit.branchTestPtr(
- MacroAssembler::NonZero,
- MacroAssembler::Address(
- baseReg, OBJECT_OFFSETOF(Arguments, m_slowArguments))));
-
- m_jit.move(propertyReg, scratch2Reg);
- m_jit.neg32(scratch2Reg);
- m_jit.signExtend32ToPtr(scratch2Reg, scratch2Reg);
- m_jit.loadPtr(
- MacroAssembler::Address(baseReg, OBJECT_OFFSETOF(Arguments, m_registers)),
- scratchReg);
-
- m_jit.store64(
- valueReg,
- MacroAssembler::BaseIndex(
- scratchReg, scratch2Reg, MacroAssembler::TimesEight,
- CallFrame::thisArgumentOffset() * sizeof(Register) - sizeof(Register)));
-
- noResult(node);
- break;
- }
-
- case Array::Int8Array:
- compilePutByValForIntTypedArray(m_jit.vm()->int8ArrayDescriptor(), base.gpr(), property.gpr(), node, sizeof(int8_t), SignedTypedArray);
- break;
-
- case Array::Int16Array:
- compilePutByValForIntTypedArray(m_jit.vm()->int16ArrayDescriptor(), base.gpr(), property.gpr(), node, sizeof(int16_t), SignedTypedArray);
- break;
-
- case Array::Int32Array:
- compilePutByValForIntTypedArray(m_jit.vm()->int32ArrayDescriptor(), base.gpr(), property.gpr(), node, sizeof(int32_t), SignedTypedArray);
- break;
-
- case Array::Uint8Array:
- compilePutByValForIntTypedArray(m_jit.vm()->uint8ArrayDescriptor(), base.gpr(), property.gpr(), node, sizeof(uint8_t), UnsignedTypedArray);
- break;
-
- case Array::Uint8ClampedArray:
- compilePutByValForIntTypedArray(m_jit.vm()->uint8ClampedArrayDescriptor(), base.gpr(), property.gpr(), node, sizeof(uint8_t), UnsignedTypedArray, ClampRounding);
- break;
-
- case Array::Uint16Array:
- compilePutByValForIntTypedArray(m_jit.vm()->uint16ArrayDescriptor(), base.gpr(), property.gpr(), node, sizeof(uint16_t), UnsignedTypedArray);
- break;
-
- case Array::Uint32Array:
- compilePutByValForIntTypedArray(m_jit.vm()->uint32ArrayDescriptor(), base.gpr(), property.gpr(), node, sizeof(uint32_t), UnsignedTypedArray);
- break;
-
- case Array::Float32Array:
- compilePutByValForFloatTypedArray(m_jit.vm()->float32ArrayDescriptor(), base.gpr(), property.gpr(), node, sizeof(float));
- break;
-
- case Array::Float64Array:
- compilePutByValForFloatTypedArray(m_jit.vm()->float64ArrayDescriptor(), base.gpr(), property.gpr(), node, sizeof(double));
- break;
-
- default:
- RELEASE_ASSERT_NOT_REACHED();
- break;
- }
+ default: {
+ TypedArrayType type = arrayMode.typedArrayType();
+ if (isInt(type))
+ compilePutByValForIntTypedArray(base.gpr(), property.gpr(), node, type);
+ else
+ compilePutByValForFloatTypedArray(base.gpr(), property.gpr(), node, type);
+ } }
break;
}
GPRReg argumentGPR = argument.gpr();
flushRegisters();
- GPRResult result(this);
+ GPRFlushedCallResult result(this);
callOperation(operationRegExpTest, result.gpr(), baseGPR, argumentGPR);
// Must use jsValueResult because otherwise we screw up register
GPRReg argumentGPR = argument.gpr();
flushRegisters();
- GPRResult result(this);
+ GPRFlushedCallResult result(this);
callOperation(operationRegExpExec, result.gpr(), baseGPR, argumentGPR);
jsValueResult(result.gpr(), node);
GPRReg argumentGPR = argument.gpr();
flushRegisters();
- GPRResult result(this);
+ GPRFlushedCallResult result(this);
callOperation(operationRegExpTest, result.gpr(), baseGPR, argumentGPR);
// If we add a DataFormatBool, we should use it here.
MacroAssembler::Below, valueGPR, GPRInfo::tagTypeNumberRegister));
}
- if (node->arrayMode().type() != Array::Int32 && Heap::isWriteBarrierEnabled()) {
- GPRTemporary scratch(this);
- writeBarrier(baseGPR, valueGPR, node->child2(), WriteBarrierForPropertyAccess, scratch.gpr(), storageLengthGPR);
- }
-
m_jit.load32(MacroAssembler::Address(storageGPR, Butterfly::offsetOfPublicLength()), storageLengthGPR);
MacroAssembler::Jump slowPath = m_jit.branch32(MacroAssembler::AboveOrEqual, storageLengthGPR, MacroAssembler::Address(storageGPR, Butterfly::offsetOfVectorLength()));
m_jit.store64(valueGPR, MacroAssembler::BaseIndex(storageGPR, storageLengthGPR, MacroAssembler::TimesEight));
addSlowPathGenerator(
slowPathCall(
- slowPath, this, operationArrayPush, NoResult, storageLengthGPR,
+ slowPath, this, operationArrayPush, storageLengthGPR,
valueGPR, baseGPR));
jsValueResult(storageLengthGPR, node);
FPRReg valueFPR = value.fpr();
DFG_TYPE_CHECK(
- JSValueRegs(), node->child2(), SpecRealNumber,
+ JSValueRegs(), node->child2(), SpecDoubleReal,
m_jit.branchDouble(MacroAssembler::DoubleNotEqualOrUnordered, valueFPR, valueFPR));
m_jit.load32(MacroAssembler::Address(storageGPR, Butterfly::offsetOfPublicLength()), storageLengthGPR);
addSlowPathGenerator(
slowPathCall(
- slowPath, this, operationArrayPushDouble, NoResult, storageLengthGPR,
+ slowPath, this, operationArrayPushDouble, storageLengthGPR,
valueFPR, baseGPR));
jsValueResult(storageLengthGPR, node);
JSValueOperand value(this, node->child2());
GPRReg valueGPR = value.gpr();
- if (Heap::isWriteBarrierEnabled()) {
- GPRTemporary scratch(this);
- writeBarrier(baseGPR, valueGPR, node->child2(), WriteBarrierForPropertyAccess, scratch.gpr(), storageLengthGPR);
- }
-
m_jit.load32(MacroAssembler::Address(storageGPR, ArrayStorage::lengthOffset()), storageLengthGPR);
// Refuse to handle bizarre lengths.
// FIXME: This would not have to be here if changing the publicLength also zeroed the values between the old
// length and the new length.
m_jit.store64(
- MacroAssembler::TrustedImm64((int64_t)0), MacroAssembler::BaseIndex(storageGPR, storageLengthGPR, MacroAssembler::TimesEight));
+ MacroAssembler::TrustedImm64(bitwise_cast<int64_t>(PNaN)), MacroAssembler::BaseIndex(storageGPR, storageLengthGPR, MacroAssembler::TimesEight));
slowCase = m_jit.branchDouble(MacroAssembler::DoubleNotEqualOrUnordered, tempFPR, tempFPR);
boxDouble(tempFPR, valueGPR);
} else {
}
case DFG::Jump: {
- BlockIndex taken = node->takenBlockIndex();
- jump(taken);
+ jump(node->targetBlock());
noResult(node);
break;
}
case Branch:
emitBranch(node);
break;
+
+ case Switch:
+ emitSwitch(node);
+ break;
case Return: {
ASSERT(GPRInfo::callFrameRegister != GPRInfo::regT1);
ASSERT(GPRInfo::regT1 != GPRInfo::returnValueGPR);
ASSERT(GPRInfo::returnValueGPR != GPRInfo::callFrameRegister);
-#if DFG_ENABLE(SUCCESS_STATS)
- static SamplingCounter counter("SpeculativeJIT");
- m_jit.emitCount(counter);
-#endif
-
// Return the result in returnValueGPR.
JSValueOperand op1(this, node->child1());
m_jit.move(op1.gpr(), GPRInfo::returnValueGPR);
- // Grab the return address.
- m_jit.emitGetFromCallFrameHeaderPtr(JSStack::ReturnPC, GPRInfo::regT1);
- // Restore our caller's "r".
- m_jit.emitGetFromCallFrameHeaderPtr(JSStack::CallerFrame, GPRInfo::callFrameRegister);
- // Return.
- m_jit.restoreReturnAddressBeforeReturn(GPRInfo::regT1);
+ m_jit.emitFunctionEpilogue();
m_jit.ret();
noResult(node);
break;
}
- case ToPrimitive: {
- RELEASE_ASSERT(node->child1().useKind() == UntypedUse);
- JSValueOperand op1(this, node->child1());
- GPRTemporary result(this, op1);
-
- GPRReg op1GPR = op1.gpr();
- GPRReg resultGPR = result.gpr();
-
- op1.use();
-
- if (!(m_state.forNode(node->child1()).m_type & ~(SpecNumber | SpecBoolean)))
- m_jit.move(op1GPR, resultGPR);
- else {
- MacroAssembler::Jump alreadyPrimitive = m_jit.branchTest64(MacroAssembler::NonZero, op1GPR, GPRInfo::tagMaskRegister);
- MacroAssembler::Jump notPrimitive = m_jit.branchPtr(MacroAssembler::NotEqual, MacroAssembler::Address(op1GPR, JSCell::structureOffset()), MacroAssembler::TrustedImmPtr(m_jit.vm()->stringStructure.get()));
-
- alreadyPrimitive.link(&m_jit);
- m_jit.move(op1GPR, resultGPR);
+ case BooleanToNumber: {
+ switch (node->child1().useKind()) {
+ case BooleanUse: {
+ JSValueOperand value(this, node->child1(), ManualOperandSpeculation);
+ GPRTemporary result(this); // FIXME: We could reuse, but on speculation fail would need recovery to restore tag (akin to add).
- addSlowPathGenerator(
- slowPathCall(notPrimitive, this, operationToPrimitive, resultGPR, op1GPR));
+ m_jit.move(value.gpr(), result.gpr());
+ m_jit.xor64(TrustedImm32(static_cast<int32_t>(ValueFalse)), result.gpr());
+ DFG_TYPE_CHECK(
+ JSValueRegs(value.gpr()), node->child1(), SpecBoolean, m_jit.branchTest64(
+ JITCompiler::NonZero, result.gpr(), TrustedImm32(static_cast<int32_t>(~1))));
+
+ int32Result(result.gpr(), node);
+ break;
}
-
- jsValueResult(resultGPR, node, UseChildrenCalledExplicitly);
- break;
- }
-
- case ToString: {
- if (node->child1().useKind() == UntypedUse) {
- JSValueOperand op1(this, node->child1());
- GPRReg op1GPR = op1.gpr();
- GPRResult result(this);
- GPRReg resultGPR = result.gpr();
+ case UntypedUse: {
+ JSValueOperand value(this, node->child1());
+ GPRTemporary result(this);
+
+ if (!m_interpreter.needsTypeCheck(node->child1(), SpecBoolInt32 | SpecBoolean)) {
+ m_jit.move(value.gpr(), result.gpr());
+ m_jit.and32(TrustedImm32(1), result.gpr());
+ int32Result(result.gpr(), node);
+ break;
+ }
+
+ m_jit.move(value.gpr(), result.gpr());
+ m_jit.xor64(TrustedImm32(static_cast<int32_t>(ValueFalse)), result.gpr());
+ JITCompiler::Jump isBoolean = m_jit.branchTest64(
+ JITCompiler::Zero, result.gpr(), TrustedImm32(static_cast<int32_t>(~1)));
+ m_jit.move(value.gpr(), result.gpr());
+ JITCompiler::Jump done = m_jit.jump();
+ isBoolean.link(&m_jit);
+ m_jit.or64(GPRInfo::tagTypeNumberRegister, result.gpr());
+ done.link(&m_jit);
+
+ jsValueResult(result.gpr(), node);
+ break;
+ }
+
+ default:
+ DFG_CRASH(m_jit.graph(), node, "Bad use kind");
+ break;
+ }
+ break;
+ }
+
+ case ToPrimitive: {
+ DFG_ASSERT(m_jit.graph(), node, node->child1().useKind() == UntypedUse);
+ JSValueOperand op1(this, node->child1());
+ GPRTemporary result(this, Reuse, op1);
+
+ GPRReg op1GPR = op1.gpr();
+ GPRReg resultGPR = result.gpr();
+
+ op1.use();
+
+ MacroAssembler::Jump alreadyPrimitive = m_jit.branchIfNotCell(JSValueRegs(op1GPR));
+ MacroAssembler::Jump notPrimitive = m_jit.branchIfObject(op1GPR);
+
+ alreadyPrimitive.link(&m_jit);
+ m_jit.move(op1GPR, resultGPR);
+
+ addSlowPathGenerator(
+ slowPathCall(notPrimitive, this, operationToPrimitive, resultGPR, op1GPR));
+
+ jsValueResult(resultGPR, node, UseChildrenCalledExplicitly);
+ break;
+ }
+
+ case ToString:
+ case CallStringConstructor: {
+ if (node->child1().useKind() == UntypedUse) {
+ JSValueOperand op1(this, node->child1());
+ GPRReg op1GPR = op1.gpr();
+
+ GPRFlushedCallResult result(this);
+ GPRReg resultGPR = result.gpr();
flushRegisters();
JITCompiler::Jump done;
if (node->child1()->prediction() & SpecString) {
- JITCompiler::Jump slowPath1 = m_jit.branchTest64(
- JITCompiler::NonZero, op1GPR, GPRInfo::tagMaskRegister);
- JITCompiler::Jump slowPath2 = m_jit.branchPtr(
- JITCompiler::NotEqual,
- JITCompiler::Address(op1GPR, JSCell::structureOffset()),
- TrustedImmPtr(m_jit.vm()->stringStructure.get()));
+ JITCompiler::Jump slowPath1 = m_jit.branchIfNotCell(JSValueRegs(op1GPR));
+ JITCompiler::Jump slowPath2 = m_jit.branchIfNotString(op1GPR);
m_jit.move(op1GPR, resultGPR);
done = m_jit.jump();
slowPath1.link(&m_jit);
slowPath2.link(&m_jit);
}
- callOperation(operationToString, resultGPR, op1GPR);
+ if (op == ToString)
+ callOperation(operationToString, resultGPR, op1GPR);
+ else {
+ ASSERT(op == CallStringConstructor);
+ callOperation(operationCallStringConstructor, resultGPR, op1GPR);
+ }
if (done.isSet())
done.link(&m_jit);
cellResult(resultGPR, node);
break;
}
- compileToStringOnCell(node);
+ compileToStringOrCallStringConstructorOnCell(node);
break;
}
}
case NewArray: {
- JSGlobalObject* globalObject = m_jit.graph().globalObjectFor(node->codeOrigin);
- if (!globalObject->isHavingABadTime() && !hasArrayStorage(node->indexingType())) {
- globalObject->havingABadTimeWatchpoint()->add(speculationWatchpoint());
-
+ JSGlobalObject* globalObject = m_jit.graph().globalObjectFor(node->origin.semantic);
+ if (!globalObject->isHavingABadTime() && !hasAnyArrayStorage(node->indexingType())) {
Structure* structure = globalObject->arrayStructureForIndexingTypeDuringAllocation(node->indexingType());
- RELEASE_ASSERT(structure->indexingType() == node->indexingType());
+ DFG_ASSERT(m_jit.graph(), node, structure->indexingType() == node->indexingType());
ASSERT(
hasUndecided(structure->indexingType())
|| hasInt32(structure->indexingType())
SpeculateDoubleOperand operand(this, use);
FPRReg opFPR = operand.fpr();
DFG_TYPE_CHECK(
- JSValueRegs(), use, SpecRealNumber,
+ JSValueRegs(), use, SpecDoubleReal,
m_jit.branchDouble(
MacroAssembler::DoubleNotEqualOrUnordered, opFPR, opFPR));
m_jit.storeDouble(opFPR, MacroAssembler::Address(storageGPR, sizeof(double) * operandIdx));
if (!node->numChildren()) {
flushRegisters();
- GPRResult result(this);
+ GPRFlushedCallResult result(this);
callOperation(operationNewEmptyArray, result.gpr(), globalObject->arrayStructureForIndexingTypeDuringAllocation(node->indexingType()));
cellResult(result.gpr(), node);
break;
FPRReg opFPR = operand.fpr();
GPRReg scratchGPR = scratch.gpr();
DFG_TYPE_CHECK(
- JSValueRegs(), use, SpecRealNumber,
+ JSValueRegs(), use, SpecDoubleReal,
m_jit.branchDouble(
MacroAssembler::DoubleNotEqualOrUnordered, opFPR, opFPR));
m_jit.boxDouble(opFPR, scratchGPR);
m_jit.storePtr(TrustedImmPtr(scratchSize), scratch.gpr());
}
- GPRResult result(this);
+ GPRFlushedCallResult result(this);
callOperation(
operationNewArray, result.gpr(), globalObject->arrayStructureForIndexingTypeDuringAllocation(node->indexingType()),
}
case NewArrayWithSize: {
- JSGlobalObject* globalObject = m_jit.graph().globalObjectFor(node->codeOrigin);
- if (!globalObject->isHavingABadTime() && !hasArrayStorage(node->indexingType())) {
- globalObject->havingABadTimeWatchpoint()->add(speculationWatchpoint());
-
+ JSGlobalObject* globalObject = m_jit.graph().globalObjectFor(node->origin.semantic);
+ if (!globalObject->isHavingABadTime() && !hasAnyArrayStorage(node->indexingType())) {
SpeculateStrictInt32Operand size(this, node->child1());
GPRTemporary result(this);
GPRTemporary storage(this);
GPRReg scratch2GPR = scratch2.gpr();
MacroAssembler::JumpList slowCases;
- slowCases.append(m_jit.branch32(MacroAssembler::AboveOrEqual, sizeGPR, TrustedImm32(MIN_SPARSE_ARRAY_INDEX)));
+ slowCases.append(m_jit.branch32(MacroAssembler::AboveOrEqual, sizeGPR, TrustedImm32(MIN_ARRAY_STORAGE_CONSTRUCTION_LENGTH)));
ASSERT((1 << 3) == sizeof(JSValue));
m_jit.move(sizeGPR, scratchGPR);
emitAllocateBasicStorage(resultGPR, storageGPR));
m_jit.subPtr(scratchGPR, storageGPR);
Structure* structure = globalObject->arrayStructureForIndexingTypeDuringAllocation(node->indexingType());
- emitAllocateJSObject<JSArray>(resultGPR, ImmPtr(structure), storageGPR, scratchGPR, scratch2GPR, slowCases);
+ emitAllocateJSObject<JSArray>(resultGPR, TrustedImmPtr(structure), storageGPR, scratchGPR, scratch2GPR, slowCases);
m_jit.store32(sizeGPR, MacroAssembler::Address(storageGPR, Butterfly::offsetOfPublicLength()));
m_jit.store32(sizeGPR, MacroAssembler::Address(storageGPR, Butterfly::offsetOfVectorLength()));
if (hasDouble(node->indexingType())) {
- m_jit.move(TrustedImm64(bitwise_cast<int64_t>(QNaN)), scratchGPR);
+ m_jit.move(TrustedImm64(bitwise_cast<int64_t>(PNaN)), scratchGPR);
m_jit.move(sizeGPR, scratch2GPR);
MacroAssembler::Jump done = m_jit.branchTest32(MacroAssembler::Zero, scratch2GPR);
MacroAssembler::Label loop = m_jit.label();
done.link(&m_jit);
}
- addSlowPathGenerator(adoptPtr(
- new CallArrayAllocatorWithVariableSizeSlowPathGenerator(
+ addSlowPathGenerator(std::make_unique<CallArrayAllocatorWithVariableSizeSlowPathGenerator>(
slowCases, this, operationNewArrayWithSize, resultGPR,
globalObject->arrayStructureForIndexingTypeDuringAllocation(node->indexingType()),
globalObject->arrayStructureForIndexingTypeDuringAllocation(ArrayWithArrayStorage),
- sizeGPR)));
+ sizeGPR));
cellResult(resultGPR, node);
break;
SpeculateStrictInt32Operand size(this, node->child1());
GPRReg sizeGPR = size.gpr();
flushRegisters();
- GPRResult result(this);
+ GPRFlushedCallResult result(this);
GPRReg resultGPR = result.gpr();
GPRReg structureGPR = selectScratchGPR(sizeGPR);
- MacroAssembler::Jump bigLength = m_jit.branch32(MacroAssembler::AboveOrEqual, sizeGPR, TrustedImm32(MIN_SPARSE_ARRAY_INDEX));
+ MacroAssembler::Jump bigLength = m_jit.branch32(MacroAssembler::AboveOrEqual, sizeGPR, TrustedImm32(MIN_ARRAY_STORAGE_CONSTRUCTION_LENGTH));
m_jit.move(TrustedImmPtr(globalObject->arrayStructureForIndexingTypeDuringAllocation(node->indexingType())), structureGPR);
MacroAssembler::Jump done = m_jit.jump();
bigLength.link(&m_jit);
}
case NewArrayBuffer: {
- JSGlobalObject* globalObject = m_jit.graph().globalObjectFor(node->codeOrigin);
+ JSGlobalObject* globalObject = m_jit.graph().globalObjectFor(node->origin.semantic);
IndexingType indexingType = node->indexingType();
- if (!globalObject->isHavingABadTime() && !hasArrayStorage(indexingType)) {
- globalObject->havingABadTimeWatchpoint()->add(speculationWatchpoint());
-
+ if (!globalObject->isHavingABadTime() && !hasAnyArrayStorage(indexingType)) {
unsigned numElements = node->numConstants();
GPRTemporary result(this);
emitAllocateJSArray(resultGPR, globalObject->arrayStructureForIndexingTypeDuringAllocation(indexingType), storageGPR, numElements);
- RELEASE_ASSERT(indexingType & IsArray);
+ DFG_ASSERT(m_jit.graph(), node, indexingType & IsArray);
JSValue* data = m_jit.codeBlock()->constantBuffer(node->startConstant());
if (indexingType == ArrayWithDouble) {
for (unsigned index = 0; index < node->numConstants(); ++index) {
}
flushRegisters();
- GPRResult result(this);
+ GPRFlushedCallResult result(this);
callOperation(operationNewArrayBuffer, result.gpr(), globalObject->arrayStructureForIndexingTypeDuringAllocation(node->indexingType()), node->startConstant(), node->numConstants());
break;
}
+ case NewTypedArray: {
+ switch (node->child1().useKind()) {
+ case Int32Use:
+ compileNewTypedArray(node);
+ break;
+ case UntypedUse: {
+ JSValueOperand argument(this, node->child1());
+ GPRReg argumentGPR = argument.gpr();
+
+ flushRegisters();
+
+ GPRFlushedCallResult result(this);
+ GPRReg resultGPR = result.gpr();
+
+ JSGlobalObject* globalObject = m_jit.graph().globalObjectFor(node->origin.semantic);
+ callOperation(
+ operationNewTypedArrayWithOneArgumentForType(node->typedArrayType()),
+ resultGPR, globalObject->typedArrayStructure(node->typedArrayType()),
+ argumentGPR);
+
+ cellResult(resultGPR, node);
+ break;
+ }
+ default:
+ DFG_CRASH(m_jit.graph(), node, "Bad use kind");
+ break;
+ }
+ break;
+ }
+
case NewRegexp: {
flushRegisters();
- GPRResult result(this);
+ GPRFlushedCallResult result(this);
callOperation(operationNewRegexp, result.gpr(), m_jit.codeBlock()->regexp(node->regexpIndex()));
break;
}
- case ConvertThis: {
+ case ToThis: {
ASSERT(node->child1().useKind() == UntypedUse);
JSValueOperand thisValue(this, node->child1());
+ GPRTemporary temp(this);
GPRReg thisValueGPR = thisValue.gpr();
+ GPRReg tempGPR = temp.gpr();
- flushRegisters();
-
- GPRResult result(this);
- callOperation(operationConvertThis, result.gpr(), thisValueGPR);
-
- cellResult(result.gpr(), node);
+ MacroAssembler::JumpList slowCases;
+ slowCases.append(m_jit.branchIfNotCell(JSValueRegs(thisValueGPR)));
+ slowCases.append(m_jit.branch8(
+ MacroAssembler::NotEqual,
+ MacroAssembler::Address(thisValueGPR, JSCell::typeInfoTypeOffset()),
+ TrustedImm32(FinalObjectType)));
+ m_jit.move(thisValueGPR, tempGPR);
+ J_JITOperation_EJ function;
+ if (m_jit.graph().executableFor(node->origin.semantic)->isStrictMode())
+ function = operationToThisStrict;
+ else
+ function = operationToThis;
+ addSlowPathGenerator(
+ slowPathCall(slowCases, this, function, tempGPR, thisValueGPR));
+
+ jsValueResult(tempGPR, node);
break;
}
GPRReg allocatorGPR = allocator.gpr();
GPRReg structureGPR = structure.gpr();
GPRReg scratchGPR = scratch.gpr();
+ // Rare data is only used to access the allocator & structure
+ // We can avoid using an additional GPR this way
+ GPRReg rareDataGPR = structureGPR;
MacroAssembler::JumpList slowPath;
- m_jit.loadPtr(JITCompiler::Address(calleeGPR, JSFunction::offsetOfAllocationProfile() + ObjectAllocationProfile::offsetOfAllocator()), allocatorGPR);
- m_jit.loadPtr(JITCompiler::Address(calleeGPR, JSFunction::offsetOfAllocationProfile() + ObjectAllocationProfile::offsetOfStructure()), structureGPR);
+ m_jit.loadPtr(JITCompiler::Address(calleeGPR, JSFunction::offsetOfRareData()), rareDataGPR);
+ slowPath.append(m_jit.branchTestPtr(MacroAssembler::Zero, rareDataGPR));
+ m_jit.loadPtr(JITCompiler::Address(rareDataGPR, FunctionRareData::offsetOfAllocationProfile() + ObjectAllocationProfile::offsetOfAllocator()), allocatorGPR);
+ m_jit.loadPtr(JITCompiler::Address(rareDataGPR, FunctionRareData::offsetOfAllocationProfile() + ObjectAllocationProfile::offsetOfStructure()), structureGPR);
slowPath.append(m_jit.branchTestPtr(MacroAssembler::Zero, allocatorGPR));
emitAllocateJSObject(resultGPR, allocatorGPR, structureGPR, TrustedImmPtr(0), scratchGPR, slowPath);
break;
}
- case AllocationProfileWatchpoint: {
- jsCast<JSFunction*>(node->function())->addAllocationProfileWatchpoint(speculationWatchpoint());
- noResult(node);
- break;
- }
-
case NewObject: {
GPRTemporary result(this);
GPRTemporary allocator(this);
MacroAssembler::JumpList slowPath;
Structure* structure = node->structure();
- size_t allocationSize = JSObject::allocationSize(structure->inlineCapacity());
+ size_t allocationSize = JSFinalObject::allocationSize(structure->inlineCapacity());
MarkedAllocator* allocatorPtr = &m_jit.vm()->heap.allocatorForObjectWithoutDestructor(allocationSize);
m_jit.move(TrustedImmPtr(allocatorPtr), allocatorGPR);
case GetCallee: {
GPRTemporary result(this);
- m_jit.loadPtr(JITCompiler::addressFor(static_cast<VirtualRegister>(node->codeOrigin.stackOffset() + static_cast<int>(JSStack::Callee))), result.gpr());
- cellResult(result.gpr(), node);
- break;
- }
-
- case SetCallee: {
- SpeculateCellOperand callee(this, node->child1());
- m_jit.storePtr(callee.gpr(), JITCompiler::addressFor(static_cast<VirtualRegister>(node->codeOrigin.stackOffset() + static_cast<int>(JSStack::Callee))));
- noResult(node);
- break;
- }
-
- case GetScope: {
- SpeculateCellOperand function(this, node->child1());
- GPRTemporary result(this, function);
- m_jit.loadPtr(JITCompiler::Address(function.gpr(), JSFunction::offsetOfScopeChain()), result.gpr());
+ m_jit.loadPtr(JITCompiler::addressFor(JSStack::Callee), result.gpr());
cellResult(result.gpr(), node);
break;
}
- case GetMyScope: {
+ case GetArgumentCount: {
GPRTemporary result(this);
- GPRReg resultGPR = result.gpr();
-
- m_jit.loadPtr(JITCompiler::addressFor(static_cast<VirtualRegister>(node->codeOrigin.stackOffset() + static_cast<int>(JSStack::ScopeChain))), resultGPR);
- cellResult(resultGPR, node);
- break;
- }
-
- case SetMyScope: {
- SpeculateCellOperand callee(this, node->child1());
- m_jit.storePtr(callee.gpr(), JITCompiler::addressFor(static_cast<VirtualRegister>(node->codeOrigin.stackOffset() + static_cast<int>(JSStack::ScopeChain))));
- noResult(node);
+ m_jit.load32(JITCompiler::payloadFor(JSStack::ArgumentCount), result.gpr());
+ int32Result(result.gpr(), node);
break;
}
- case SkipTopScope: {
- SpeculateCellOperand scope(this, node->child1());
- GPRTemporary result(this, scope);
- GPRReg resultGPR = result.gpr();
- m_jit.move(scope.gpr(), resultGPR);
- JITCompiler::Jump activationNotCreated =
- m_jit.branchTest64(
- JITCompiler::Zero,
- JITCompiler::addressFor(
- static_cast<VirtualRegister>(m_jit.codeBlock()->activationRegister())));
- m_jit.loadPtr(JITCompiler::Address(resultGPR, JSScope::offsetOfNext()), resultGPR);
- activationNotCreated.link(&m_jit);
- cellResult(resultGPR, node);
+ case GetScope:
+ compileGetScope(node);
break;
- }
- case SkipScope: {
- SpeculateCellOperand scope(this, node->child1());
- GPRTemporary result(this, scope);
- m_jit.loadPtr(JITCompiler::Address(scope.gpr(), JSScope::offsetOfNext()), result.gpr());
- cellResult(result.gpr(), node);
+ case SkipScope:
+ compileSkipScope(node);
break;
- }
- case GetScopeRegisters: {
- SpeculateCellOperand scope(this, node->child1());
- GPRTemporary result(this);
- GPRReg scopeGPR = scope.gpr();
- GPRReg resultGPR = result.gpr();
-
- m_jit.loadPtr(JITCompiler::Address(scopeGPR, JSVariableObject::offsetOfRegisters()), resultGPR);
- storageResult(resultGPR, node);
- break;
- }
- case GetScopedVar: {
- StorageOperand registers(this, node->child1());
+ case GetClosureVar: {
+ SpeculateCellOperand base(this, node->child1());
GPRTemporary result(this);
- GPRReg registersGPR = registers.gpr();
+ GPRReg baseGPR = base.gpr();
GPRReg resultGPR = result.gpr();
- m_jit.load64(JITCompiler::Address(registersGPR, node->varNumber() * sizeof(Register)), resultGPR);
+ m_jit.load64(JITCompiler::Address(baseGPR, JSEnvironmentRecord::offsetOfVariable(node->scopeOffset())), resultGPR);
jsValueResult(resultGPR, node);
break;
}
- case PutScopedVar: {
- SpeculateCellOperand scope(this, node->child1());
- StorageOperand registers(this, node->child2());
- JSValueOperand value(this, node->child3());
- GPRTemporary scratchRegister(this);
+ case PutClosureVar: {
+ SpeculateCellOperand base(this, node->child1());
+ JSValueOperand value(this, node->child2());
- GPRReg scopeGPR = scope.gpr();
- GPRReg registersGPR = registers.gpr();
+ GPRReg baseGPR = base.gpr();
GPRReg valueGPR = value.gpr();
- GPRReg scratchGPR = scratchRegister.gpr();
- m_jit.store64(valueGPR, JITCompiler::Address(registersGPR, node->varNumber() * sizeof(Register)));
- writeBarrier(scopeGPR, valueGPR, node->child3(), WriteBarrierForVariableAccess, scratchGPR);
+ m_jit.store64(valueGPR, JITCompiler::Address(baseGPR, JSEnvironmentRecord::offsetOfVariable(node->scopeOffset())));
noResult(node);
break;
}
case GetById: {
- if (!node->prediction()) {
- terminateSpeculativeExecution(InadequateCoverage, JSValueRegs(), 0);
- break;
- }
+ ASSERT(node->prediction());
switch (node->child1().useKind()) {
case CellUse: {
SpeculateCellOperand base(this, node->child1());
- GPRTemporary result(this, base);
+ GPRTemporary result(this, Reuse, base);
GPRReg baseGPR = base.gpr();
GPRReg resultGPR = result.gpr();
base.use();
- cachedGetById(node->codeOrigin, baseGPR, resultGPR, node->identifierNumber());
+ cachedGetById(node->origin.semantic, baseGPR, resultGPR, node->identifierNumber());
jsValueResult(resultGPR, node, UseChildrenCalledExplicitly);
break;
case UntypedUse: {
JSValueOperand base(this, node->child1());
- GPRTemporary result(this, base);
+ GPRTemporary result(this, Reuse, base);
GPRReg baseGPR = base.gpr();
GPRReg resultGPR = result.gpr();
base.use();
- JITCompiler::Jump notCell = m_jit.branchTest64(JITCompiler::NonZero, baseGPR, GPRInfo::tagMaskRegister);
+ JITCompiler::Jump notCell = m_jit.branchIfNotCell(JSValueRegs(baseGPR));
- cachedGetById(node->codeOrigin, baseGPR, resultGPR, node->identifierNumber(), notCell);
+ cachedGetById(node->origin.semantic, baseGPR, resultGPR, node->identifierNumber(), notCell);
jsValueResult(resultGPR, node, UseChildrenCalledExplicitly);
break;
}
default:
- RELEASE_ASSERT_NOT_REACHED();
+ DFG_CRASH(m_jit.graph(), node, "Bad use kind");
break;
}
break;
SpeculateCellOperand base(this, node->child1());
GPRReg baseGPR = base.gpr();
- GPRResult result(this);
+ GPRFlushedCallResult result(this);
GPRReg resultGPR = result.gpr();
flushRegisters();
- cachedGetById(node->codeOrigin, baseGPR, resultGPR, node->identifierNumber(), JITCompiler::Jump(), DontSpill);
+ cachedGetById(node->origin.semantic, baseGPR, resultGPR, node->identifierNumber(), JITCompiler::Jump(), DontSpill);
jsValueResult(resultGPR, node, UseChildrenCalledExplicitly);
break;
JSValueOperand base(this, node->child1());
GPRReg baseGPR = base.gpr();
- GPRResult result(this);
+ GPRFlushedCallResult result(this);
GPRReg resultGPR = result.gpr();
base.use();
flushRegisters();
- JITCompiler::Jump notCell = m_jit.branchTest64(JITCompiler::NonZero, baseGPR, GPRInfo::tagMaskRegister);
+ JITCompiler::Jump notCell = m_jit.branchIfNotCell(JSValueRegs(baseGPR));
- cachedGetById(node->codeOrigin, baseGPR, resultGPR, node->identifierNumber(), notCell, DontSpill);
+ cachedGetById(node->origin.semantic, baseGPR, resultGPR, node->identifierNumber(), notCell, DontSpill);
jsValueResult(resultGPR, node, UseChildrenCalledExplicitly);
break;
}
default:
- RELEASE_ASSERT_NOT_REACHED();
+ DFG_CRASH(m_jit.graph(), node, "Bad use kind");
break;
}
break;
compileGetArrayLength(node);
break;
- case CheckFunction: {
- SpeculateCellOperand function(this, node->child1());
- speculationCheck(BadFunction, JSValueSource::unboxedCell(function.gpr()), node->child1(), m_jit.branchWeakPtr(JITCompiler::NotEqual, function.gpr(), node->function()));
+ case CheckCell: {
+ SpeculateCellOperand cell(this, node->child1());
+ speculationCheck(BadCell, JSValueSource::unboxedCell(cell.gpr()), node->child1(), m_jit.branchWeakPtr(JITCompiler::NotEqual, cell.gpr(), node->cellOperand()->cell()));
noResult(node);
break;
}
-
- case CheckExecutable: {
- SpeculateCellOperand function(this, node->child1());
- speculationCheck(BadExecutable, JSValueSource::unboxedCell(function.gpr()), node->child1(), m_jit.branchWeakPtr(JITCompiler::NotEqual, JITCompiler::Address(function.gpr(), JSFunction::offsetOfExecutable()), node->executable()));
+
+ case CheckNotEmpty: {
+ JSValueOperand operand(this, node->child1());
+ GPRReg gpr = operand.gpr();
+ speculationCheck(TDZFailure, JSValueSource(), nullptr, m_jit.branchTest64(JITCompiler::Zero, gpr));
noResult(node);
break;
}
+
+ case GetExecutable: {
+ SpeculateCellOperand function(this, node->child1());
+ GPRTemporary result(this, Reuse, function);
+ GPRReg functionGPR = function.gpr();
+ GPRReg resultGPR = result.gpr();
+ speculateCellType(node->child1(), functionGPR, SpecFunction, JSFunctionType);
+ m_jit.loadPtr(JITCompiler::Address(functionGPR, JSFunction::offsetOfExecutable()), resultGPR);
+ cellResult(resultGPR, node);
+ break;
+ }
- case CheckStructure:
- case ForwardCheckStructure: {
+ case CheckStructure: {
SpeculateCellOperand base(this, node->child1());
ASSERT(node->structureSet().size());
ExitKind exitKind;
- if (node->child1()->op() == WeakJSConstant)
- exitKind = BadWeakConstantCache;
+ if (node->child1()->hasConstant())
+ exitKind = BadConstantCache;
else
exitKind = BadCache;
if (node->structureSet().size() == 1) {
speculationCheck(
exitKind, JSValueSource::unboxedCell(base.gpr()), 0,
- m_jit.branchWeakPtr(
+ m_jit.branchWeakStructure(
JITCompiler::NotEqual,
- JITCompiler::Address(base.gpr(), JSCell::structureOffset()),
+ JITCompiler::Address(base.gpr(), JSCell::structureIDOffset()),
node->structureSet()[0]));
} else {
- GPRTemporary structure(this);
-
- m_jit.loadPtr(JITCompiler::Address(base.gpr(), JSCell::structureOffset()), structure.gpr());
-
JITCompiler::JumpList done;
for (size_t i = 0; i < node->structureSet().size() - 1; ++i)
- done.append(m_jit.branchWeakPtr(JITCompiler::Equal, structure.gpr(), node->structureSet()[i]));
+ done.append(m_jit.branchWeakStructure(JITCompiler::Equal, MacroAssembler::Address(base.gpr(), JSCell::structureIDOffset()), node->structureSet()[i]));
speculationCheck(
exitKind, JSValueSource::unboxedCell(base.gpr()), 0,
- m_jit.branchWeakPtr(
- JITCompiler::NotEqual, structure.gpr(), node->structureSet().last()));
+ m_jit.branchWeakStructure(
+ JITCompiler::NotEqual, MacroAssembler::Address(base.gpr(), JSCell::structureIDOffset()), node->structureSet().last()));
done.link(&m_jit);
}
break;
}
- case StructureTransitionWatchpoint:
- case ForwardStructureTransitionWatchpoint: {
- // There is a fascinating question here of what to do about array profiling.
- // We *could* try to tell the OSR exit about where the base of the access is.
- // The DFG will have kept it alive, though it may not be in a register, and
- // we shouldn't really load it since that could be a waste. For now though,
- // we'll just rely on the fact that when a watchpoint fires then that's
- // quite a hint already.
-
- m_jit.addWeakReference(node->structure());
- node->structure()->addTransitionWatchpoint(
- speculationWatchpoint(
- node->child1()->op() == WeakJSConstant ? BadWeakConstantCache : BadCache));
-
-#if !ASSERT_DISABLED
- SpeculateCellOperand op1(this, node->child1());
- JITCompiler::Jump isOK = m_jit.branchPtr(JITCompiler::Equal, JITCompiler::Address(op1.gpr(), JSCell::structureOffset()), TrustedImmPtr(node->structure()));
- m_jit.breakpoint();
- isOK.link(&m_jit);
-#else
- speculateCell(node->child1());
-#endif
-
- noResult(node);
- break;
- }
-
- case PhantomPutStructure: {
- ASSERT(isKnownCell(node->child1().node()));
-
- ASSERT(node->structureTransitionData().previousStructure->transitionWatchpointSetHasBeenInvalidated());
- m_jit.addWeakReferenceTransition(
- node->codeOrigin.codeOriginOwner(),
- node->structureTransitionData().previousStructure,
- node->structureTransitionData().newStructure);
- noResult(node);
- break;
- }
-
case PutStructure: {
- ASSERT(node->structureTransitionData().previousStructure->transitionWatchpointSetHasBeenInvalidated());
+ Structure* oldStructure = node->transition()->previous;
+ Structure* newStructure = node->transition()->next;
+
+ m_jit.jitCode()->common.notifyCompilingStructureTransition(m_jit.graph().m_plan, m_jit.codeBlock(), node);
SpeculateCellOperand base(this, node->child1());
GPRReg baseGPR = base.gpr();
- m_jit.addWeakReferenceTransition(
- node->codeOrigin.codeOriginOwner(),
- node->structureTransitionData().previousStructure,
- node->structureTransitionData().newStructure);
-
-#if ENABLE(WRITE_BARRIER_PROFILING)
- // Must always emit this write barrier as the structure transition itself requires it
- writeBarrier(baseGPR, node->structureTransitionData().newStructure, WriteBarrierForGenericAccess);
-#endif
-
- m_jit.storePtr(MacroAssembler::TrustedImmPtr(node->structureTransitionData().newStructure), MacroAssembler::Address(baseGPR, JSCell::structureOffset()));
+ ASSERT_UNUSED(oldStructure, oldStructure->indexingType() == newStructure->indexingType());
+ ASSERT(oldStructure->typeInfo().type() == newStructure->typeInfo().type());
+ ASSERT(oldStructure->typeInfo().inlineTypeFlags() == newStructure->typeInfo().inlineTypeFlags());
+ m_jit.store32(MacroAssembler::TrustedImm32(newStructure->id()), MacroAssembler::Address(baseGPR, JSCell::structureIDOffset()));
noResult(node);
break;
case GetButterfly: {
SpeculateCellOperand base(this, node->child1());
- GPRTemporary result(this, base);
+ GPRTemporary result(this, Reuse, base);
GPRReg baseGPR = base.gpr();
GPRReg resultGPR = result.gpr();
break;
}
- case GetByOffset: {
+ case ConstantStoragePointer: {
+ compileConstantStoragePointer(node);
+ break;
+ }
+
+ case GetTypedArrayByteOffset: {
+ compileGetTypedArrayByteOffset(node);
+ break;
+ }
+
+ case GetByOffset:
+ case GetGetterSetterByOffset: {
StorageOperand storage(this, node->child1());
- GPRTemporary result(this, storage);
+ GPRTemporary result(this, Reuse, storage);
GPRReg storageGPR = storage.gpr();
GPRReg resultGPR = result.gpr();
- StorageAccessData& storageAccessData = m_jit.graph().m_storageAccessData[node->storageAccessDataIndex()];
+ StorageAccessData& storageAccessData = node->storageAccessData();
- m_jit.load64(JITCompiler::Address(storageGPR, storageAccessData.offset * sizeof(EncodedJSValue)), resultGPR);
+ m_jit.load64(JITCompiler::Address(storageGPR, offsetRelativeToBase(storageAccessData.offset)), resultGPR);
jsValueResult(resultGPR, node);
break;
}
+ case GetGetter: {
+ SpeculateCellOperand op1(this, node->child1());
+ GPRTemporary result(this, Reuse, op1);
+
+ GPRReg op1GPR = op1.gpr();
+ GPRReg resultGPR = result.gpr();
+
+ m_jit.loadPtr(JITCompiler::Address(op1GPR, GetterSetter::offsetOfGetter()), resultGPR);
+
+ cellResult(resultGPR, node);
+ break;
+ }
+
+ case GetSetter: {
+ SpeculateCellOperand op1(this, node->child1());
+ GPRTemporary result(this, Reuse, op1);
+
+ GPRReg op1GPR = op1.gpr();
+ GPRReg resultGPR = result.gpr();
+
+ m_jit.loadPtr(JITCompiler::Address(op1GPR, GetterSetter::offsetOfSetter()), resultGPR);
+
+ cellResult(resultGPR, node);
+ break;
+ }
+
case PutByOffset: {
-#if ENABLE(WRITE_BARRIER_PROFILING)
- SpeculateCellOperand base(this, node->child2());
-#endif
StorageOperand storage(this, node->child1());
JSValueOperand value(this, node->child3());
+ GPRTemporary scratch1(this);
+ GPRTemporary scratch2(this);
GPRReg storageGPR = storage.gpr();
GPRReg valueGPR = value.gpr();
-
-#if ENABLE(WRITE_BARRIER_PROFILING)
- writeBarrier(base.gpr(), value.gpr(), node->child3(), WriteBarrierForPropertyAccess);
-#endif
- StorageAccessData& storageAccessData = m_jit.graph().m_storageAccessData[node->storageAccessDataIndex()];
-
- m_jit.store64(valueGPR, JITCompiler::Address(storageGPR, storageAccessData.offset * sizeof(EncodedJSValue)));
+ speculate(node, node->child2());
+
+ StorageAccessData& storageAccessData = node->storageAccessData();
+ m_jit.store64(valueGPR, JITCompiler::Address(storageGPR, offsetRelativeToBase(storageAccessData.offset)));
+
+ noResult(node);
+ break;
+ }
+
+ case PutByIdFlush: {
+ SpeculateCellOperand base(this, node->child1());
+ JSValueOperand value(this, node->child2());
+ GPRTemporary scratch(this);
+
+ GPRReg baseGPR = base.gpr();
+ GPRReg valueGPR = value.gpr();
+ GPRReg scratchGPR = scratch.gpr();
+ flushRegisters();
+
+ cachedPutById(node->origin.semantic, baseGPR, valueGPR, scratchGPR, node->identifierNumber(), NotDirect, MacroAssembler::Jump(), DontSpill);
+
noResult(node);
break;
}
GPRReg valueGPR = value.gpr();
GPRReg scratchGPR = scratch.gpr();
- base.use();
- value.use();
+ cachedPutById(node->origin.semantic, baseGPR, valueGPR, scratchGPR, node->identifierNumber(), NotDirect);
- cachedPutById(node->codeOrigin, baseGPR, valueGPR, node->child2(), scratchGPR, node->identifierNumber(), NotDirect);
-
- noResult(node, UseChildrenCalledExplicitly);
+ noResult(node);
break;
}
GPRReg valueGPR = value.gpr();
GPRReg scratchGPR = scratch.gpr();
- base.use();
- value.use();
+ cachedPutById(node->origin.semantic, baseGPR, valueGPR, scratchGPR, node->identifierNumber(), Direct);
- cachedPutById(node->codeOrigin, baseGPR, valueGPR, node->child2(), scratchGPR, node->identifierNumber(), Direct);
-
- noResult(node, UseChildrenCalledExplicitly);
+ noResult(node);
break;
}
case GetGlobalVar: {
GPRTemporary result(this);
- m_jit.load64(node->registerPointer(), result.gpr());
+ m_jit.load64(node->variablePointer(), result.gpr());
jsValueResult(result.gpr(), node);
break;
}
case PutGlobalVar: {
- JSValueOperand value(this, node->child1());
-
- if (Heap::isWriteBarrierEnabled()) {
- GPRTemporary scratch(this);
- GPRReg scratchReg = scratch.gpr();
-
- writeBarrier(m_jit.globalObjectFor(node->codeOrigin), value.gpr(), node->child1(), WriteBarrierForVariableAccess, scratchReg);
- }
-
- m_jit.store64(value.gpr(), node->registerPointer());
+ JSValueOperand value(this, node->child2());
+
+ m_jit.store64(value.gpr(), node->variablePointer());
noResult(node);
break;
}
- case PutGlobalVarCheck: {
- JSValueOperand value(this, node->child1());
-
- WatchpointSet* watchpointSet =
- m_jit.globalObjectFor(node->codeOrigin)->symbolTable()->get(
- identifier(node->identifierNumberForCheck())->impl()).watchpointSet();
- addSlowPathGenerator(
- slowPathCall(
- m_jit.branchTest8(
- JITCompiler::NonZero,
- JITCompiler::AbsoluteAddress(watchpointSet->addressOfIsWatched())),
- this, operationNotifyGlobalVarWrite, NoResult, watchpointSet));
-
- if (Heap::isWriteBarrierEnabled()) {
- GPRTemporary scratch(this);
- GPRReg scratchReg = scratch.gpr();
-
- writeBarrier(m_jit.globalObjectFor(node->codeOrigin), value.gpr(), node->child1(), WriteBarrierForVariableAccess, scratchReg);
- }
-
- m_jit.store64(value.gpr(), node->registerPointer());
-
- noResult(node);
+ case NotifyWrite: {
+ compileNotifyWrite(node);
break;
}
-
- case GlobalVarWatchpoint: {
- m_jit.globalObjectFor(node->codeOrigin)->symbolTable()->get(
- identifier(node->identifierNumberForCheck())->impl()).addWatchpoint(
- speculationWatchpoint());
-
-#if DFG_ENABLE(JIT_ASSERT)
- GPRTemporary scratch(this);
- GPRReg scratchGPR = scratch.gpr();
- m_jit.load64(node->registerPointer(), scratchGPR);
- JITCompiler::Jump ok = m_jit.branch64(
- JITCompiler::Equal, scratchGPR,
- TrustedImm64(JSValue::encode(node->registerPointer()->get())));
- m_jit.breakpoint();
- ok.link(&m_jit);
-#endif
-
+
+ case VarInjectionWatchpoint: {
noResult(node);
break;
}
GPRTemporary structure(this);
// Speculate that base 'ImplementsDefaultHasInstance'.
- m_jit.loadPtr(MacroAssembler::Address(base.gpr(), JSCell::structureOffset()), structure.gpr());
- speculationCheck(Uncountable, JSValueRegs(), 0, m_jit.branchTest8(MacroAssembler::Zero, MacroAssembler::Address(structure.gpr(), Structure::typeInfoFlagsOffset()), MacroAssembler::TrustedImm32(ImplementsDefaultHasInstance)));
+ speculationCheck(Uncountable, JSValueRegs(), 0, m_jit.branchTest8(
+ MacroAssembler::Zero,
+ MacroAssembler::Address(base.gpr(), JSCell::typeInfoFlagsOffset()),
+ MacroAssembler::TrustedImm32(ImplementsDefaultHasInstance)));
noResult(node);
break;
GPRTemporary result(this);
GPRTemporary localGlobalObject(this);
GPRTemporary remoteGlobalObject(this);
+ GPRTemporary scratch(this);
- JITCompiler::Jump isCell = m_jit.branchTest64(JITCompiler::Zero, value.gpr(), GPRInfo::tagMaskRegister);
+ JITCompiler::Jump isCell = m_jit.branchIfCell(value.jsValueRegs());
m_jit.compare64(JITCompiler::Equal, value.gpr(), TrustedImm32(ValueUndefined), result.gpr());
JITCompiler::Jump done = m_jit.jump();
isCell.link(&m_jit);
JITCompiler::Jump notMasqueradesAsUndefined;
- if (m_jit.graph().globalObjectFor(node->codeOrigin)->masqueradesAsUndefinedWatchpoint()->isStillValid()) {
- m_jit.graph().globalObjectFor(node->codeOrigin)->masqueradesAsUndefinedWatchpoint()->add(speculationWatchpoint());
+ if (masqueradesAsUndefinedWatchpointIsStillValid()) {
m_jit.move(TrustedImm32(0), result.gpr());
notMasqueradesAsUndefined = m_jit.jump();
} else {
- m_jit.loadPtr(JITCompiler::Address(value.gpr(), JSCell::structureOffset()), result.gpr());
- JITCompiler::Jump isMasqueradesAsUndefined = m_jit.branchTest8(JITCompiler::NonZero, JITCompiler::Address(result.gpr(), Structure::typeInfoFlagsOffset()), TrustedImm32(MasqueradesAsUndefined));
+ JITCompiler::Jump isMasqueradesAsUndefined = m_jit.branchTest8(
+ JITCompiler::NonZero,
+ JITCompiler::Address(value.gpr(), JSCell::typeInfoFlagsOffset()),
+ TrustedImm32(MasqueradesAsUndefined));
m_jit.move(TrustedImm32(0), result.gpr());
notMasqueradesAsUndefined = m_jit.jump();
isMasqueradesAsUndefined.link(&m_jit);
GPRReg localGlobalObjectGPR = localGlobalObject.gpr();
GPRReg remoteGlobalObjectGPR = remoteGlobalObject.gpr();
- m_jit.move(TrustedImmPtr(m_jit.globalObjectFor(node->codeOrigin)), localGlobalObjectGPR);
+ m_jit.move(TrustedImmPtr(m_jit.globalObjectFor(node->origin.semantic)), localGlobalObjectGPR);
+ m_jit.emitLoadStructure(value.gpr(), result.gpr(), scratch.gpr());
m_jit.loadPtr(JITCompiler::Address(result.gpr(), Structure::globalObjectOffset()), remoteGlobalObjectGPR);
m_jit.comparePtr(JITCompiler::Equal, localGlobalObjectGPR, remoteGlobalObjectGPR, result.gpr());
}
case IsBoolean: {
JSValueOperand value(this, node->child1());
- GPRTemporary result(this, value);
+ GPRTemporary result(this, Reuse, value);
m_jit.move(value.gpr(), result.gpr());
m_jit.xor64(JITCompiler::TrustedImm32(ValueFalse), result.gpr());
case IsNumber: {
JSValueOperand value(this, node->child1());
- GPRTemporary result(this, value);
+ GPRTemporary result(this, Reuse, value);
m_jit.test64(JITCompiler::NonZero, value.gpr(), GPRInfo::tagTypeNumberRegister, result.gpr());
m_jit.or32(TrustedImm32(ValueFalse), result.gpr());
case IsString: {
JSValueOperand value(this, node->child1());
- GPRTemporary result(this, value);
+ GPRTemporary result(this, Reuse, value);
- JITCompiler::Jump isNotCell = m_jit.branchTest64(JITCompiler::NonZero, value.gpr(), GPRInfo::tagMaskRegister);
+ JITCompiler::Jump isNotCell = m_jit.branchIfNotCell(value.jsValueRegs());
- m_jit.loadPtr(JITCompiler::Address(value.gpr(), JSCell::structureOffset()), result.gpr());
- m_jit.compare8(JITCompiler::Equal, JITCompiler::Address(result.gpr(), Structure::typeInfoTypeOffset()), TrustedImm32(StringType), result.gpr());
+ m_jit.compare8(JITCompiler::Equal,
+ JITCompiler::Address(value.gpr(), JSCell::typeInfoTypeOffset()),
+ TrustedImm32(StringType),
+ result.gpr());
m_jit.or32(TrustedImm32(ValueFalse), result.gpr());
JITCompiler::Jump done = m_jit.jump();
jsValueResult(result.gpr(), node, DataFormatJSBoolean);
break;
}
-
+
case IsObject: {
JSValueOperand value(this, node->child1());
- GPRReg valueGPR = value.gpr();
- GPRResult result(this);
- GPRReg resultGPR = result.gpr();
- flushRegisters();
- callOperation(operationIsObject, resultGPR, valueGPR);
- m_jit.or32(TrustedImm32(ValueFalse), resultGPR);
+ GPRTemporary result(this, Reuse, value);
+
+ JITCompiler::Jump isNotCell = m_jit.branchIfNotCell(value.jsValueRegs());
+
+ m_jit.compare8(JITCompiler::AboveOrEqual,
+ JITCompiler::Address(value.gpr(), JSCell::typeInfoTypeOffset()),
+ TrustedImm32(ObjectType),
+ result.gpr());
+ m_jit.or32(TrustedImm32(ValueFalse), result.gpr());
+ JITCompiler::Jump done = m_jit.jump();
+
+ isNotCell.link(&m_jit);
+ m_jit.move(TrustedImm32(ValueFalse), result.gpr());
+
+ done.link(&m_jit);
jsValueResult(result.gpr(), node, DataFormatJSBoolean);
break;
}
+ case IsObjectOrNull: {
+ compileIsObjectOrNull(node);
+ break;
+ }
+
case IsFunction: {
- JSValueOperand value(this, node->child1());
- GPRReg valueGPR = value.gpr();
- GPRResult result(this);
- GPRReg resultGPR = result.gpr();
- flushRegisters();
- callOperation(operationIsFunction, resultGPR, valueGPR);
- m_jit.or32(TrustedImm32(ValueFalse), resultGPR);
- jsValueResult(result.gpr(), node, DataFormatJSBoolean);
+ compileIsFunction(node);
break;
}
case TypeOf: {
- JSValueOperand value(this, node->child1(), ManualOperandSpeculation);
- GPRReg valueGPR = value.gpr();
- GPRTemporary temp(this);
- GPRReg tempGPR = temp.gpr();
- GPRResult result(this);
- GPRReg resultGPR = result.gpr();
- JITCompiler::JumpList doneJumps;
-
- flushRegisters();
-
- ASSERT(node->child1().useKind() == UntypedUse || node->child1().useKind() == CellUse || node->child1().useKind() == StringUse);
-
- JITCompiler::Jump isNotCell = m_jit.branchTest64(JITCompiler::NonZero, valueGPR, GPRInfo::tagMaskRegister);
- if (node->child1().useKind() != UntypedUse)
- DFG_TYPE_CHECK(JSValueSource(valueGPR), node->child1(), SpecCell, isNotCell);
-
- if (!node->child1()->shouldSpeculateObject() || node->child1().useKind() == StringUse) {
- m_jit.loadPtr(JITCompiler::Address(valueGPR, JSCell::structureOffset()), tempGPR);
- JITCompiler::Jump notString = m_jit.branch8(JITCompiler::NotEqual, JITCompiler::Address(tempGPR, Structure::typeInfoTypeOffset()), TrustedImm32(StringType));
- if (node->child1().useKind() == StringUse)
- DFG_TYPE_CHECK(JSValueSource(valueGPR), node->child1(), SpecString, notString);
- m_jit.move(TrustedImmPtr(m_jit.vm()->smallStrings.stringString()), resultGPR);
- doneJumps.append(m_jit.jump());
- if (node->child1().useKind() != StringUse) {
- notString.link(&m_jit);
- callOperation(operationTypeOf, resultGPR, valueGPR);
- doneJumps.append(m_jit.jump());
- }
- } else {
- callOperation(operationTypeOf, resultGPR, valueGPR);
- doneJumps.append(m_jit.jump());
- }
-
- if (node->child1().useKind() == UntypedUse) {
- isNotCell.link(&m_jit);
- JITCompiler::Jump notNumber = m_jit.branchTest64(JITCompiler::Zero, valueGPR, GPRInfo::tagTypeNumberRegister);
- m_jit.move(TrustedImmPtr(m_jit.vm()->smallStrings.numberString()), resultGPR);
- doneJumps.append(m_jit.jump());
- notNumber.link(&m_jit);
-
- JITCompiler::Jump notUndefined = m_jit.branch64(JITCompiler::NotEqual, valueGPR, JITCompiler::TrustedImm64(ValueUndefined));
- m_jit.move(TrustedImmPtr(m_jit.vm()->smallStrings.undefinedString()), resultGPR);
- doneJumps.append(m_jit.jump());
- notUndefined.link(&m_jit);
-
- JITCompiler::Jump notNull = m_jit.branch64(JITCompiler::NotEqual, valueGPR, JITCompiler::TrustedImm64(ValueNull));
- m_jit.move(TrustedImmPtr(m_jit.vm()->smallStrings.objectString()), resultGPR);
- doneJumps.append(m_jit.jump());
- notNull.link(&m_jit);
-
- // Only boolean left
- m_jit.move(TrustedImmPtr(m_jit.vm()->smallStrings.booleanString()), resultGPR);
- }
- doneJumps.link(&m_jit);
- cellResult(resultGPR, node);
+ compileTypeOf(node);
break;
}
case Flush:
- case Phi:
break;
- case Breakpoint:
-#if ENABLE(DEBUG_WITH_BREAKPOINT)
- m_jit.breakpoint();
-#else
- RELEASE_ASSERT_NOT_REACHED();
-#endif
- break;
-
case Call:
case Construct:
+ case CallVarargs:
+ case CallForwardVarargs:
+ case ConstructVarargs:
+ case ConstructForwardVarargs:
emitCall(node);
break;
+
+ case LoadVarargs: {
+ LoadVarargsData* data = node->loadVarargsData();
+
+ GPRReg argumentsGPR;
+ {
+ JSValueOperand arguments(this, node->child1());
+ argumentsGPR = arguments.gpr();
+ flushRegisters();
+ }
+
+ callOperation(operationSizeOfVarargs, GPRInfo::returnValueGPR, argumentsGPR, data->offset);
+
+ lock(GPRInfo::returnValueGPR);
+ {
+ JSValueOperand arguments(this, node->child1());
+ argumentsGPR = arguments.gpr();
+ flushRegisters();
+ }
+ unlock(GPRInfo::returnValueGPR);
+
+ // FIXME: There is a chance that we will call an effectful length property twice. This is safe
+ // from the standpoint of the VM's integrity, but it's subtly wrong from a spec compliance
+ // standpoint. The best solution would be one where we can exit *into* the op_call_varargs right
+ // past the sizing.
+ // https://bugs.webkit.org/show_bug.cgi?id=141448
- case Resolve: {
- flushRegisters();
- GPRResult result(this);
- ResolveOperationData& data = m_jit.graph().m_resolveOperationsData[node->resolveOperationsDataIndex()];
- callOperation(operationResolve, result.gpr(), identifier(data.identifierNumber), data.resolveOperations);
- jsValueResult(result.gpr(), node);
+ GPRReg argCountIncludingThisGPR =
+ JITCompiler::selectScratchGPR(GPRInfo::returnValueGPR, argumentsGPR);
+
+ m_jit.add32(TrustedImm32(1), GPRInfo::returnValueGPR, argCountIncludingThisGPR);
+ speculationCheck(
+ VarargsOverflow, JSValueSource(), Edge(), m_jit.branch32(
+ MacroAssembler::Above,
+ argCountIncludingThisGPR,
+ TrustedImm32(data->limit)));
+
+ m_jit.store32(argCountIncludingThisGPR, JITCompiler::payloadFor(data->machineCount));
+
+ callOperation(operationLoadVarargs, data->machineStart.offset(), argumentsGPR, data->offset, GPRInfo::returnValueGPR, data->mandatoryMinimum);
+
+ noResult(node);
break;
}
-
- case ResolveBase: {
- flushRegisters();
- GPRResult result(this);
- ResolveOperationData& data = m_jit.graph().m_resolveOperationsData[node->resolveOperationsDataIndex()];
- callOperation(operationResolveBase, result.gpr(), identifier(data.identifierNumber), data.resolveOperations, data.putToBaseOperation);
- jsValueResult(result.gpr(), node);
+
+ case ForwardVarargs: {
+ compileForwardVarargs(node);
break;
}
-
- case ResolveBaseStrictPut: {
- flushRegisters();
- GPRResult result(this);
- ResolveOperationData& data = m_jit.graph().m_resolveOperationsData[node->resolveOperationsDataIndex()];
- callOperation(operationResolveBaseStrictPut, result.gpr(), identifier(data.identifierNumber), data.resolveOperations, data.putToBaseOperation);
- jsValueResult(result.gpr(), node);
+
+ case CreateActivation: {
+ compileCreateActivation(node);
break;
}
-
- case ResolveGlobal: {
- GPRTemporary globalObject(this);
- GPRTemporary resolveInfo(this);
- GPRTemporary result(this);
-
- GPRReg globalObjectGPR = globalObject.gpr();
- GPRReg resolveInfoGPR = resolveInfo.gpr();
- GPRReg resultGPR = result.gpr();
-
- ResolveGlobalData& data = m_jit.graph().m_resolveGlobalData[node->resolveGlobalDataIndex()];
- ResolveOperation* resolveOperationAddress = &(data.resolveOperations->data()[data.resolvePropertyIndex]);
-
- // Check Structure of global object
- m_jit.move(JITCompiler::TrustedImmPtr(m_jit.globalObjectFor(node->codeOrigin)), globalObjectGPR);
- m_jit.move(JITCompiler::TrustedImmPtr(resolveOperationAddress), resolveInfoGPR);
- m_jit.loadPtr(JITCompiler::Address(resolveInfoGPR, OBJECT_OFFSETOF(ResolveOperation, m_structure)), resultGPR);
- JITCompiler::Jump structuresDontMatch = m_jit.branchPtr(JITCompiler::NotEqual, resultGPR, JITCompiler::Address(globalObjectGPR, JSCell::structureOffset()));
-
- // Fast case
- m_jit.load32(JITCompiler::Address(resolveInfoGPR, OBJECT_OFFSETOF(ResolveOperation, m_offset)), resolveInfoGPR);
-#if DFG_ENABLE(JIT_ASSERT)
- JITCompiler::Jump isOutOfLine = m_jit.branch32(JITCompiler::GreaterThanOrEqual, resolveInfoGPR, TrustedImm32(firstOutOfLineOffset));
- m_jit.breakpoint();
- isOutOfLine.link(&m_jit);
-#endif
- m_jit.neg32(resolveInfoGPR);
- m_jit.signExtend32ToPtr(resolveInfoGPR, resolveInfoGPR);
- m_jit.loadPtr(JITCompiler::Address(globalObjectGPR, JSObject::butterflyOffset()), resultGPR);
- m_jit.load64(JITCompiler::BaseIndex(resultGPR, resolveInfoGPR, JITCompiler::TimesEight, (firstOutOfLineOffset - 2) * static_cast<ptrdiff_t>(sizeof(JSValue))), resultGPR);
- addSlowPathGenerator(
- slowPathCall(
- structuresDontMatch, this, operationResolveGlobal,
- resultGPR, resolveInfoGPR, globalObjectGPR,
- &m_jit.codeBlock()->identifier(data.identifierNumber)));
-
- jsValueResult(resultGPR, node);
+ case CreateDirectArguments: {
+ compileCreateDirectArguments(node);
break;
}
- case CreateActivation: {
- RELEASE_ASSERT(!node->codeOrigin.inlineCallFrame);
+ case GetFromArguments: {
+ compileGetFromArguments(node);
+ break;
+ }
- JSValueOperand value(this, node->child1());
- GPRTemporary result(this, value);
+ case PutToArguments: {
+ compilePutToArguments(node);
+ break;
+ }
- GPRReg valueGPR = value.gpr();
- GPRReg resultGPR = result.gpr();
+ case CreateScopedArguments: {
+ compileCreateScopedArguments(node);
+ break;
+ }
- m_jit.move(valueGPR, resultGPR);
+ case CreateClonedArguments: {
+ compileCreateClonedArguments(node);
+ break;
+ }
- JITCompiler::Jump notCreated = m_jit.branchTest64(JITCompiler::Zero, resultGPR);
+ case NewFunction:
+ compileNewFunction(node);
+ break;
- addSlowPathGenerator(
- slowPathCall(notCreated, this, operationCreateActivation, resultGPR));
+ case In:
+ compileIn(node);
+ break;
- cellResult(resultGPR, node);
+ case CountExecution:
+ m_jit.add64(TrustedImm32(1), MacroAssembler::AbsoluteAddress(node->executionCounter()->address()));
+ break;
+
+ case ForceOSRExit: {
+ terminateSpeculativeExecution(InadequateCoverage, JSValueRegs(), 0);
break;
}
- case CreateArguments: {
- JSValueOperand value(this, node->child1());
- GPRTemporary result(this, value);
+ case InvalidationPoint:
+ emitInvalidationPoint(node);
+ break;
+
+ case CheckWatchdogTimer:
+ ASSERT(m_jit.vm()->watchdog);
+ speculationCheck(
+ WatchdogTimerFired, JSValueRegs(), 0,
+ m_jit.branchTest8(
+ JITCompiler::NonZero,
+ JITCompiler::AbsoluteAddress(m_jit.vm()->watchdog->timerDidFireAddress())));
+ break;
+
+ case Phantom:
+ case Check:
+ DFG_NODE_DO_TO_CHILDREN(m_jit.graph(), node, speculate);
+ noResult(node);
+ break;
- GPRReg valueGPR = value.gpr();
+ case Breakpoint:
+ case ProfileWillCall:
+ case ProfileDidCall:
+ case PhantomLocal:
+ case LoopHint:
+ // This is a no-op.
+ noResult(node);
+ break;
+
+ case Unreachable:
+ DFG_CRASH(m_jit.graph(), node, "Unexpected Unreachable node");
+ break;
+
+ case StoreBarrier: {
+ compileStoreBarrier(node);
+ break;
+ }
+
+ case GetEnumerableLength: {
+ SpeculateCellOperand enumerator(this, node->child1());
+ GPRFlushedCallResult result(this);
GPRReg resultGPR = result.gpr();
-
- m_jit.move(valueGPR, resultGPR);
-
- JITCompiler::Jump notCreated = m_jit.branchTest64(JITCompiler::Zero, resultGPR);
-
- if (node->codeOrigin.inlineCallFrame) {
- addSlowPathGenerator(
- slowPathCall(
- notCreated, this, operationCreateInlinedArguments, resultGPR,
- node->codeOrigin.inlineCallFrame));
- } else {
- addSlowPathGenerator(
- slowPathCall(notCreated, this, operationCreateArguments, resultGPR));
- }
-
- cellResult(resultGPR, node);
+
+ m_jit.load32(MacroAssembler::Address(enumerator.gpr(), JSPropertyNameEnumerator::indexedLengthOffset()), resultGPR);
+ int32Result(resultGPR, node);
break;
}
+ case HasGenericProperty: {
+ JSValueOperand base(this, node->child1());
+ SpeculateCellOperand property(this, node->child2());
+ GPRFlushedCallResult result(this);
+ GPRReg resultGPR = result.gpr();
- case TearOffActivation: {
- RELEASE_ASSERT(!node->codeOrigin.inlineCallFrame);
+ flushRegisters();
+ callOperation(operationHasGenericProperty, resultGPR, base.gpr(), property.gpr());
+ jsValueResult(resultGPR, node, DataFormatJSBoolean);
+ break;
+ }
+ case HasStructureProperty: {
+ JSValueOperand base(this, node->child1());
+ SpeculateCellOperand property(this, node->child2());
+ SpeculateCellOperand enumerator(this, node->child3());
+ GPRTemporary result(this);
- JSValueOperand activationValue(this, node->child1());
- GPRTemporary scratch(this);
- GPRReg activationValueGPR = activationValue.gpr();
- GPRReg scratchGPR = scratch.gpr();
+ GPRReg baseGPR = base.gpr();
+ GPRReg propertyGPR = property.gpr();
+ GPRReg resultGPR = result.gpr();
- JITCompiler::Jump notCreated = m_jit.branchTest64(JITCompiler::Zero, activationValueGPR);
+ m_jit.load32(MacroAssembler::Address(baseGPR, JSCell::structureIDOffset()), resultGPR);
+ MacroAssembler::Jump wrongStructure = m_jit.branch32(MacroAssembler::NotEqual,
+ resultGPR,
+ MacroAssembler::Address(enumerator.gpr(), JSPropertyNameEnumerator::cachedStructureIDOffset()));
- SharedSymbolTable* symbolTable = m_jit.symbolTableFor(node->codeOrigin);
- int registersOffset = JSActivation::registersOffset(symbolTable);
+ moveTrueTo(resultGPR);
+ MacroAssembler::Jump done = m_jit.jump();
- int captureEnd = symbolTable->captureEnd();
- for (int i = symbolTable->captureStart(); i < captureEnd; ++i) {
- m_jit.load64(
- JITCompiler::Address(
- GPRInfo::callFrameRegister, i * sizeof(Register)), scratchGPR);
- m_jit.store64(
- scratchGPR, JITCompiler::Address(
- activationValueGPR, registersOffset + i * sizeof(Register)));
- }
- m_jit.addPtr(TrustedImm32(registersOffset), activationValueGPR, scratchGPR);
- m_jit.storePtr(scratchGPR, JITCompiler::Address(activationValueGPR, JSActivation::offsetOfRegisters()));
+ done.link(&m_jit);
- notCreated.link(&m_jit);
- noResult(node);
+ addSlowPathGenerator(slowPathCall(wrongStructure, this, operationHasGenericProperty, resultGPR, baseGPR, propertyGPR));
+ jsValueResult(resultGPR, node, DataFormatJSBoolean);
break;
}
+ case HasIndexedProperty: {
+ SpeculateCellOperand base(this, node->child1());
+ SpeculateStrictInt32Operand index(this, node->child2());
+ GPRTemporary result(this);
- case TearOffArguments: {
- JSValueOperand unmodifiedArgumentsValue(this, node->child1());
- JSValueOperand activationValue(this, node->child2());
- GPRReg unmodifiedArgumentsValueGPR = unmodifiedArgumentsValue.gpr();
- GPRReg activationValueGPR = activationValue.gpr();
+ GPRReg baseGPR = base.gpr();
+ GPRReg indexGPR = index.gpr();
+ GPRReg resultGPR = result.gpr();
- JITCompiler::Jump created = m_jit.branchTest64(JITCompiler::NonZero, unmodifiedArgumentsValueGPR);
+ MacroAssembler::JumpList slowCases;
+ ArrayMode mode = node->arrayMode();
+ switch (mode.type()) {
+ case Array::Int32:
+ case Array::Contiguous: {
+ ASSERT(!!node->child3());
+ StorageOperand storage(this, node->child3());
+ GPRTemporary scratch(this);
+
+ GPRReg storageGPR = storage.gpr();
+ GPRReg scratchGPR = scratch.gpr();
- if (node->codeOrigin.inlineCallFrame) {
- addSlowPathGenerator(
- slowPathCall(
- created, this, operationTearOffInlinedArguments, NoResult,
- unmodifiedArgumentsValueGPR, activationValueGPR, node->codeOrigin.inlineCallFrame));
- } else {
- addSlowPathGenerator(
- slowPathCall(
- created, this, operationTearOffArguments, NoResult, unmodifiedArgumentsValueGPR, activationValueGPR));
+ MacroAssembler::Jump outOfBounds = m_jit.branch32(MacroAssembler::AboveOrEqual, indexGPR, MacroAssembler::Address(storageGPR, Butterfly::offsetOfPublicLength()));
+ if (mode.isInBounds())
+ speculationCheck(OutOfBounds, JSValueRegs(), 0, outOfBounds);
+ else
+ slowCases.append(outOfBounds);
+
+ m_jit.load64(MacroAssembler::BaseIndex(storageGPR, indexGPR, MacroAssembler::TimesEight), scratchGPR);
+ slowCases.append(m_jit.branchTest64(MacroAssembler::Zero, scratchGPR));
+ moveTrueTo(resultGPR);
+ break;
}
+ case Array::Double: {
+ ASSERT(!!node->child3());
+ StorageOperand storage(this, node->child3());
+ FPRTemporary scratch(this);
+ FPRReg scratchFPR = scratch.fpr();
+ GPRReg storageGPR = storage.gpr();
+
+ MacroAssembler::Jump outOfBounds = m_jit.branch32(MacroAssembler::AboveOrEqual, indexGPR, MacroAssembler::Address(storageGPR, Butterfly::offsetOfPublicLength()));
+ if (mode.isInBounds())
+ speculationCheck(OutOfBounds, JSValueRegs(), 0, outOfBounds);
+ else
+ slowCases.append(outOfBounds);
+
+ m_jit.loadDouble(MacroAssembler::BaseIndex(storageGPR, indexGPR, MacroAssembler::TimesEight), scratchFPR);
+ slowCases.append(m_jit.branchDouble(MacroAssembler::DoubleNotEqualOrUnordered, scratchFPR, scratchFPR));
+ moveTrueTo(resultGPR);
+ break;
+ }
+ case Array::ArrayStorage: {
+ ASSERT(!!node->child3());
+ StorageOperand storage(this, node->child3());
+ GPRTemporary scratch(this);
+
+ GPRReg storageGPR = storage.gpr();
+ GPRReg scratchGPR = scratch.gpr();
+
+ MacroAssembler::Jump outOfBounds = m_jit.branch32(MacroAssembler::AboveOrEqual, indexGPR, MacroAssembler::Address(storageGPR, ArrayStorage::vectorLengthOffset()));
+ if (mode.isInBounds())
+ speculationCheck(OutOfBounds, JSValueRegs(), 0, outOfBounds);
+ else
+ slowCases.append(outOfBounds);
+
+ m_jit.load64(MacroAssembler::BaseIndex(storageGPR, indexGPR, MacroAssembler::TimesEight, ArrayStorage::vectorOffset()), scratchGPR);
+ slowCases.append(m_jit.branchTest64(MacroAssembler::Zero, scratchGPR));
+ moveTrueTo(resultGPR);
+ break;
+ }
+ default: {
+ slowCases.append(m_jit.jump());
+ break;
+ }
+ }
+
+ addSlowPathGenerator(slowPathCall(slowCases, this, operationHasIndexedProperty, resultGPR, baseGPR, indexGPR));
- noResult(node);
+ jsValueResult(resultGPR, node, DataFormatJSBoolean);
break;
}
-
- case GetMyArgumentsLength: {
+ case GetDirectPname: {
+ Edge& baseEdge = m_jit.graph().varArgChild(node, 0);
+ Edge& propertyEdge = m_jit.graph().varArgChild(node, 1);
+ Edge& indexEdge = m_jit.graph().varArgChild(node, 2);
+ Edge& enumeratorEdge = m_jit.graph().varArgChild(node, 3);
+
+ SpeculateCellOperand base(this, baseEdge);
+ SpeculateCellOperand property(this, propertyEdge);
+ SpeculateStrictInt32Operand index(this, indexEdge);
+ SpeculateCellOperand enumerator(this, enumeratorEdge);
GPRTemporary result(this);
+ GPRTemporary scratch1(this);
+ GPRTemporary scratch2(this);
+
+ GPRReg baseGPR = base.gpr();
+ GPRReg propertyGPR = property.gpr();
+ GPRReg indexGPR = index.gpr();
+ GPRReg enumeratorGPR = enumerator.gpr();
GPRReg resultGPR = result.gpr();
+ GPRReg scratch1GPR = scratch1.gpr();
+ GPRReg scratch2GPR = scratch2.gpr();
+
+ // Check the structure
+ m_jit.load32(MacroAssembler::Address(baseGPR, JSCell::structureIDOffset()), scratch1GPR);
+ MacroAssembler::Jump wrongStructure = m_jit.branch32(MacroAssembler::NotEqual,
+ scratch1GPR, MacroAssembler::Address(enumeratorGPR, JSPropertyNameEnumerator::cachedStructureIDOffset()));
- if (!isEmptySpeculation(
- m_state.variables().operand(
- m_jit.graph().argumentsRegisterFor(node->codeOrigin)).m_type)) {
- speculationCheck(
- ArgumentsEscaped, JSValueRegs(), 0,
- m_jit.branchTest64(
- JITCompiler::NonZero,
- JITCompiler::addressFor(
- m_jit.argumentsRegisterFor(node->codeOrigin))));
- }
+ // Compute the offset
+ // If index is less than the enumerator's cached inline storage, then it's an inline access
+ MacroAssembler::Jump outOfLineAccess = m_jit.branch32(MacroAssembler::AboveOrEqual,
+ indexGPR, MacroAssembler::Address(enumeratorGPR, JSPropertyNameEnumerator::cachedInlineCapacityOffset()));
+
+ m_jit.load64(MacroAssembler::BaseIndex(baseGPR, indexGPR, MacroAssembler::TimesEight, JSObject::offsetOfInlineStorage()), resultGPR);
+
+ MacroAssembler::Jump done = m_jit.jump();
- RELEASE_ASSERT(!node->codeOrigin.inlineCallFrame);
- m_jit.load32(JITCompiler::payloadFor(JSStack::ArgumentCount), resultGPR);
- m_jit.sub32(TrustedImm32(1), resultGPR);
- integerResult(resultGPR, node);
+ // Otherwise it's out of line
+ outOfLineAccess.link(&m_jit);
+ m_jit.loadPtr(MacroAssembler::Address(baseGPR, JSObject::butterflyOffset()), scratch2GPR);
+ m_jit.move(indexGPR, scratch1GPR);
+ m_jit.sub32(MacroAssembler::Address(enumeratorGPR, JSPropertyNameEnumerator::cachedInlineCapacityOffset()), scratch1GPR);
+ m_jit.neg32(scratch1GPR);
+ m_jit.signExtend32ToPtr(scratch1GPR, scratch1GPR);
+ int32_t offsetOfFirstProperty = static_cast<int32_t>(offsetInButterfly(firstOutOfLineOffset)) * sizeof(EncodedJSValue);
+ m_jit.load64(MacroAssembler::BaseIndex(scratch2GPR, scratch1GPR, MacroAssembler::TimesEight, offsetOfFirstProperty), resultGPR);
+
+ done.link(&m_jit);
+
+ addSlowPathGenerator(slowPathCall(wrongStructure, this, operationGetByVal, resultGPR, baseGPR, propertyGPR));
+
+ jsValueResult(resultGPR, node);
break;
}
-
- case GetMyArgumentsLengthSafe: {
- GPRTemporary result(this);
+ case GetPropertyEnumerator: {
+ SpeculateCellOperand base(this, node->child1());
+ GPRFlushedCallResult result(this);
GPRReg resultGPR = result.gpr();
-
- JITCompiler::Jump created = m_jit.branchTest64(
- JITCompiler::NonZero,
- JITCompiler::addressFor(
- m_jit.argumentsRegisterFor(node->codeOrigin)));
-
- if (node->codeOrigin.inlineCallFrame) {
- m_jit.move(
- Imm64(JSValue::encode(jsNumber(node->codeOrigin.inlineCallFrame->arguments.size() - 1))),
- resultGPR);
- } else {
- m_jit.load32(JITCompiler::payloadFor(JSStack::ArgumentCount), resultGPR);
- m_jit.sub32(TrustedImm32(1), resultGPR);
- m_jit.or64(GPRInfo::tagTypeNumberRegister, resultGPR);
- }
-
- // FIXME: the slow path generator should perform a forward speculation that the
- // result is an integer. For now we postpone the speculation by having this return
- // a JSValue.
-
- addSlowPathGenerator(
- slowPathCall(
- created, this, operationGetArgumentsLength, resultGPR,
- m_jit.argumentsRegisterFor(node->codeOrigin)));
-
- jsValueResult(resultGPR, node);
+
+ flushRegisters();
+ callOperation(operationGetPropertyEnumerator, resultGPR, base.gpr());
+ cellResult(resultGPR, node);
break;
}
-
- case GetMyArgumentByVal: {
- SpeculateStrictInt32Operand index(this, node->child1());
+ case GetEnumeratorStructurePname:
+ case GetEnumeratorGenericPname: {
+ SpeculateCellOperand enumerator(this, node->child1());
+ SpeculateStrictInt32Operand index(this, node->child2());
+ GPRTemporary scratch1(this);
GPRTemporary result(this);
+
+ GPRReg enumeratorGPR = enumerator.gpr();
GPRReg indexGPR = index.gpr();
+ GPRReg scratch1GPR = scratch1.gpr();
GPRReg resultGPR = result.gpr();
- if (!isEmptySpeculation(
- m_state.variables().operand(
- m_jit.graph().argumentsRegisterFor(node->codeOrigin)).m_type)) {
- speculationCheck(
- ArgumentsEscaped, JSValueRegs(), 0,
- m_jit.branchTest64(
- JITCompiler::NonZero,
- JITCompiler::addressFor(
- m_jit.argumentsRegisterFor(node->codeOrigin))));
- }
-
- m_jit.add32(TrustedImm32(1), indexGPR, resultGPR);
- if (node->codeOrigin.inlineCallFrame) {
- speculationCheck(
- Uncountable, JSValueRegs(), 0,
- m_jit.branch32(
- JITCompiler::AboveOrEqual,
- resultGPR,
- Imm32(node->codeOrigin.inlineCallFrame->arguments.size())));
- } else {
- speculationCheck(
- Uncountable, JSValueRegs(), 0,
- m_jit.branch32(
- JITCompiler::AboveOrEqual,
- resultGPR,
- JITCompiler::payloadFor(JSStack::ArgumentCount)));
- }
+ MacroAssembler::Jump inBounds = m_jit.branch32(MacroAssembler::Below, indexGPR,
+ MacroAssembler::Address(enumeratorGPR, (op == GetEnumeratorStructurePname)
+ ? JSPropertyNameEnumerator::endStructurePropertyIndexOffset()
+ : JSPropertyNameEnumerator::endGenericPropertyIndexOffset()));
- JITCompiler::JumpList slowArgument;
- JITCompiler::JumpList slowArgumentOutOfBounds;
- if (const SlowArgument* slowArguments = m_jit.symbolTableFor(node->codeOrigin)->slowArguments()) {
- slowArgumentOutOfBounds.append(
- m_jit.branch32(
- JITCompiler::AboveOrEqual, indexGPR,
- Imm32(m_jit.symbolTableFor(node->codeOrigin)->parameterCount())));
+ m_jit.move(MacroAssembler::TrustedImm64(JSValue::encode(jsNull())), resultGPR);
- COMPILE_ASSERT(sizeof(SlowArgument) == 8, SlowArgument_size_is_eight_bytes);
- m_jit.move(ImmPtr(slowArguments), resultGPR);
- m_jit.load32(
- JITCompiler::BaseIndex(
- resultGPR, indexGPR, JITCompiler::TimesEight,
- OBJECT_OFFSETOF(SlowArgument, index)),
- resultGPR);
- m_jit.signExtend32ToPtr(resultGPR, resultGPR);
- m_jit.load64(
- JITCompiler::BaseIndex(
- GPRInfo::callFrameRegister, resultGPR, JITCompiler::TimesEight, m_jit.offsetOfLocals(node->codeOrigin)),
- resultGPR);
- slowArgument.append(m_jit.jump());
- }
- slowArgumentOutOfBounds.link(&m_jit);
+ MacroAssembler::Jump done = m_jit.jump();
+ inBounds.link(&m_jit);
- m_jit.neg32(resultGPR);
- m_jit.signExtend32ToPtr(resultGPR, resultGPR);
-
- m_jit.load64(
- JITCompiler::BaseIndex(
- GPRInfo::callFrameRegister, resultGPR, JITCompiler::TimesEight, m_jit.offsetOfArgumentsIncludingThis(node->codeOrigin)),
- resultGPR);
+ m_jit.loadPtr(MacroAssembler::Address(enumeratorGPR, JSPropertyNameEnumerator::cachedPropertyNamesVectorOffset()), scratch1GPR);
+ m_jit.load64(MacroAssembler::BaseIndex(scratch1GPR, indexGPR, MacroAssembler::TimesEight), resultGPR);
- slowArgument.link(&m_jit);
+ done.link(&m_jit);
jsValueResult(resultGPR, node);
break;
}
-
- case GetMyArgumentByValSafe: {
- SpeculateStrictInt32Operand index(this, node->child1());
- GPRTemporary result(this);
- GPRReg indexGPR = index.gpr();
+ case ToIndexString: {
+ SpeculateInt32Operand index(this, node->child1());
+ GPRFlushedCallResult result(this);
GPRReg resultGPR = result.gpr();
-
- JITCompiler::JumpList slowPath;
- slowPath.append(
- m_jit.branchTest64(
- JITCompiler::NonZero,
- JITCompiler::addressFor(
- m_jit.argumentsRegisterFor(node->codeOrigin))));
-
- m_jit.add32(TrustedImm32(1), indexGPR, resultGPR);
- if (node->codeOrigin.inlineCallFrame) {
- slowPath.append(
- m_jit.branch32(
- JITCompiler::AboveOrEqual,
- resultGPR,
- Imm32(node->codeOrigin.inlineCallFrame->arguments.size())));
- } else {
- slowPath.append(
- m_jit.branch32(
- JITCompiler::AboveOrEqual,
- resultGPR,
- JITCompiler::payloadFor(JSStack::ArgumentCount)));
- }
-
- JITCompiler::JumpList slowArgument;
- JITCompiler::JumpList slowArgumentOutOfBounds;
- if (const SlowArgument* slowArguments = m_jit.symbolTableFor(node->codeOrigin)->slowArguments()) {
- slowArgumentOutOfBounds.append(
- m_jit.branch32(
- JITCompiler::AboveOrEqual, indexGPR,
- Imm32(m_jit.symbolTableFor(node->codeOrigin)->parameterCount())));
- COMPILE_ASSERT(sizeof(SlowArgument) == 8, SlowArgument_size_is_eight_bytes);
- m_jit.move(ImmPtr(slowArguments), resultGPR);
- m_jit.load32(
- JITCompiler::BaseIndex(
- resultGPR, indexGPR, JITCompiler::TimesEight,
- OBJECT_OFFSETOF(SlowArgument, index)),
- resultGPR);
- m_jit.signExtend32ToPtr(resultGPR, resultGPR);
- m_jit.load64(
- JITCompiler::BaseIndex(
- GPRInfo::callFrameRegister, resultGPR, JITCompiler::TimesEight, m_jit.offsetOfLocals(node->codeOrigin)),
- resultGPR);
- slowArgument.append(m_jit.jump());
- }
- slowArgumentOutOfBounds.link(&m_jit);
+ flushRegisters();
+ callOperation(operationToIndexString, resultGPR, index.gpr());
+ cellResult(resultGPR, node);
+ break;
+ }
+ case ProfileType: {
+ JSValueOperand value(this, node->child1());
+ GPRTemporary scratch1(this);
+ GPRTemporary scratch2(this);
+ GPRTemporary scratch3(this);
- m_jit.neg32(resultGPR);
- m_jit.signExtend32ToPtr(resultGPR, resultGPR);
-
- m_jit.load64(
- JITCompiler::BaseIndex(
- GPRInfo::callFrameRegister, resultGPR, JITCompiler::TimesEight, m_jit.offsetOfArgumentsIncludingThis(node->codeOrigin)),
- resultGPR);
-
- if (node->codeOrigin.inlineCallFrame) {
- addSlowPathGenerator(
- slowPathCall(
- slowPath, this, operationGetInlinedArgumentByVal, resultGPR,
- m_jit.argumentsRegisterFor(node->codeOrigin),
- node->codeOrigin.inlineCallFrame,
- indexGPR));
- } else {
- addSlowPathGenerator(
- slowPathCall(
- slowPath, this, operationGetArgumentByVal, resultGPR,
- m_jit.argumentsRegisterFor(node->codeOrigin),
- indexGPR));
+ GPRReg scratch1GPR = scratch1.gpr();
+ GPRReg scratch2GPR = scratch2.gpr();
+ GPRReg scratch3GPR = scratch3.gpr();
+ GPRReg valueGPR = value.gpr();
+
+ MacroAssembler::JumpList jumpToEnd;
+
+ TypeLocation* cachedTypeLocation = node->typeLocation();
+ // Compile in a predictive type check, if possible, to see if we can skip writing to the log.
+ // These typechecks are inlined to match those of the 64-bit JSValue type checks.
+ if (cachedTypeLocation->m_lastSeenType == TypeUndefined)
+ jumpToEnd.append(m_jit.branch64(MacroAssembler::Equal, valueGPR, MacroAssembler::TrustedImm64(JSValue::encode(jsUndefined()))));
+ else if (cachedTypeLocation->m_lastSeenType == TypeNull)
+ jumpToEnd.append(m_jit.branch64(MacroAssembler::Equal, valueGPR, MacroAssembler::TrustedImm64(JSValue::encode(jsNull()))));
+ else if (cachedTypeLocation->m_lastSeenType == TypeBoolean) {
+ m_jit.move(valueGPR, scratch2GPR);
+ m_jit.and64(TrustedImm32(~1), scratch2GPR);
+ jumpToEnd.append(m_jit.branch64(MacroAssembler::Equal, scratch2GPR, MacroAssembler::TrustedImm64(ValueFalse)));
+ } else if (cachedTypeLocation->m_lastSeenType == TypeMachineInt)
+ jumpToEnd.append(m_jit.branch64(MacroAssembler::AboveOrEqual, valueGPR, GPRInfo::tagTypeNumberRegister));
+ else if (cachedTypeLocation->m_lastSeenType == TypeNumber)
+ jumpToEnd.append(m_jit.branchTest64(MacroAssembler::NonZero, valueGPR, GPRInfo::tagTypeNumberRegister));
+ else if (cachedTypeLocation->m_lastSeenType == TypeString) {
+ MacroAssembler::Jump isNotCell = m_jit.branchIfNotCell(JSValueRegs(valueGPR));
+ jumpToEnd.append(m_jit.branchIfString(valueGPR));
+ isNotCell.link(&m_jit);
}
-
- slowArgument.link(&m_jit);
- jsValueResult(resultGPR, node);
+
+ // Load the TypeProfilerLog into Scratch2.
+ TypeProfilerLog* cachedTypeProfilerLog = m_jit.vm()->typeProfilerLog();
+ m_jit.move(TrustedImmPtr(cachedTypeProfilerLog), scratch2GPR);
+
+ // Load the next LogEntry into Scratch1.
+ m_jit.loadPtr(MacroAssembler::Address(scratch2GPR, TypeProfilerLog::currentLogEntryOffset()), scratch1GPR);
+
+ // Store the JSValue onto the log entry.
+ m_jit.store64(valueGPR, MacroAssembler::Address(scratch1GPR, TypeProfilerLog::LogEntry::valueOffset()));
+
+ // Store the structureID of the cell if valueGPR is a cell, otherwise, store 0 on the log entry.
+ MacroAssembler::Jump isNotCell = m_jit.branchIfNotCell(JSValueRegs(valueGPR));
+ m_jit.load32(MacroAssembler::Address(valueGPR, JSCell::structureIDOffset()), scratch3GPR);
+ m_jit.store32(scratch3GPR, MacroAssembler::Address(scratch1GPR, TypeProfilerLog::LogEntry::structureIDOffset()));
+ MacroAssembler::Jump skipIsCell = m_jit.jump();
+ isNotCell.link(&m_jit);
+ m_jit.store32(TrustedImm32(0), MacroAssembler::Address(scratch1GPR, TypeProfilerLog::LogEntry::structureIDOffset()));
+ skipIsCell.link(&m_jit);
+
+ // Store the typeLocation on the log entry.
+ m_jit.move(TrustedImmPtr(cachedTypeLocation), scratch3GPR);
+ m_jit.storePtr(scratch3GPR, MacroAssembler::Address(scratch1GPR, TypeProfilerLog::LogEntry::locationOffset()));
+
+ // Increment the current log entry.
+ m_jit.addPtr(TrustedImm32(sizeof(TypeProfilerLog::LogEntry)), scratch1GPR);
+ m_jit.storePtr(scratch1GPR, MacroAssembler::Address(scratch2GPR, TypeProfilerLog::currentLogEntryOffset()));
+ MacroAssembler::Jump clearLog = m_jit.branchPtr(MacroAssembler::Equal, scratch1GPR, TrustedImmPtr(cachedTypeProfilerLog->logEndPtr()));
+ addSlowPathGenerator(
+ slowPathCall(clearLog, this, operationProcessTypeProfilerLogDFG, NoResult));
+
+ jumpToEnd.link(&m_jit);
+
+ noResult(node);
break;
}
-
- case CheckArgumentsNotCreated: {
- ASSERT(!isEmptySpeculation(
- m_state.variables().operand(
- m_jit.graph().argumentsRegisterFor(node->codeOrigin)).m_type));
- speculationCheck(
- ArgumentsEscaped, JSValueRegs(), 0,
- m_jit.branchTest64(
- JITCompiler::NonZero,
- JITCompiler::addressFor(
- m_jit.argumentsRegisterFor(node->codeOrigin))));
+ case ProfileControlFlow: {
+ BasicBlockLocation* basicBlockLocation = node->basicBlockLocation();
+ if (!basicBlockLocation->hasExecuted()) {
+ GPRTemporary scratch1(this);
+ basicBlockLocation->emitExecuteCode(m_jit, scratch1.gpr());
+ }
noResult(node);
break;
}
+
+#if ENABLE(FTL_JIT)
+ case CheckTierUpInLoop: {
+ MacroAssembler::Jump done = m_jit.branchAdd32(
+ MacroAssembler::Signed,
+ TrustedImm32(Options::ftlTierUpCounterIncrementForLoop()),
+ MacroAssembler::AbsoluteAddress(&m_jit.jitCode()->tierUpCounter.m_counter));
- case NewFunctionNoCheck:
- compileNewFunctionNoCheck(node);
- break;
-
- case NewFunction: {
- JSValueOperand value(this, node->child1());
- GPRTemporary result(this, value);
-
- GPRReg valueGPR = value.gpr();
- GPRReg resultGPR = result.gpr();
+ silentSpillAllRegisters(InvalidGPRReg);
+ m_jit.setupArgumentsExecState();
+ appendCall(triggerTierUpNowInLoop);
+ silentFillAllRegisters(InvalidGPRReg);
- m_jit.move(valueGPR, resultGPR);
+ done.link(&m_jit);
+ break;
+ }
- JITCompiler::Jump notCreated = m_jit.branchTest64(JITCompiler::Zero, resultGPR);
+ case CheckTierUpAtReturn: {
+ MacroAssembler::Jump done = m_jit.branchAdd32(
+ MacroAssembler::Signed,
+ TrustedImm32(Options::ftlTierUpCounterIncrementForReturn()),
+ MacroAssembler::AbsoluteAddress(&m_jit.jitCode()->tierUpCounter.m_counter));
- addSlowPathGenerator(
- slowPathCall(
- notCreated, this, operationNewFunction,
- resultGPR, m_jit.codeBlock()->functionDecl(node->functionDeclIndex())));
+ silentSpillAllRegisters(InvalidGPRReg);
+ m_jit.setupArgumentsExecState();
+ appendCall(triggerTierUpNow);
+ silentFillAllRegisters(InvalidGPRReg);
- jsValueResult(resultGPR, node);
+ done.link(&m_jit);
break;
}
- case NewFunctionExpression:
- compileNewFunctionExpression(node);
- break;
+ case CheckTierUpAndOSREnter:
+ case CheckTierUpWithNestedTriggerAndOSREnter: {
+ ASSERT(!node->origin.semantic.inlineCallFrame);
- case CountExecution:
- m_jit.add64(TrustedImm32(1), MacroAssembler::AbsoluteAddress(node->executionCounter()->address()));
- break;
-
- case GarbageValue:
- // We should never get to the point of code emission for a GarbageValue
- CRASH();
- break;
+ GPRTemporary temp(this);
+ GPRReg tempGPR = temp.gpr();
- case ForceOSRExit: {
- terminateSpeculativeExecution(InadequateCoverage, JSValueRegs(), 0);
+ MacroAssembler::Jump forceOSREntry;
+ if (op == CheckTierUpWithNestedTriggerAndOSREnter)
+ forceOSREntry = m_jit.branchTest8(MacroAssembler::NonZero, MacroAssembler::AbsoluteAddress(&m_jit.jitCode()->nestedTriggerIsSet));
+
+ MacroAssembler::Jump done = m_jit.branchAdd32(
+ MacroAssembler::Signed,
+ TrustedImm32(Options::ftlTierUpCounterIncrementForLoop()),
+ MacroAssembler::AbsoluteAddress(&m_jit.jitCode()->tierUpCounter.m_counter));
+
+ if (forceOSREntry.isSet())
+ forceOSREntry.link(&m_jit);
+ silentSpillAllRegisters(tempGPR);
+ m_jit.setupArgumentsWithExecState(
+ TrustedImm32(node->origin.semantic.bytecodeIndex),
+ TrustedImm32(m_stream->size()));
+ appendCallSetResult(triggerOSREntryNow, tempGPR);
+ MacroAssembler::Jump dontEnter = m_jit.branchTestPtr(MacroAssembler::Zero, tempGPR);
+ m_jit.jump(tempGPR);
+ dontEnter.link(&m_jit);
+ silentFillAllRegisters(tempGPR);
+
+ done.link(&m_jit);
break;
}
-
- case CheckWatchdogTimer:
- speculationCheck(
- WatchdogTimerFired, JSValueRegs(), 0,
- m_jit.branchTest8(
- JITCompiler::NonZero,
- JITCompiler::AbsoluteAddress(m_jit.vm()->watchdog.timerDidFireAddress())));
+#else // ENABLE(FTL_JIT)
+ case CheckTierUpInLoop:
+ case CheckTierUpAtReturn:
+ case CheckTierUpAndOSREnter:
+ case CheckTierUpWithNestedTriggerAndOSREnter:
+ DFG_CRASH(m_jit.graph(), node, "Unexpected tier-up node");
break;
+#endif // ENABLE(FTL_JIT)
- case Phantom:
- DFG_NODE_DO_TO_CHILDREN(m_jit.graph(), node, speculate);
- noResult(node);
- break;
-
- case PhantomLocal:
- // This is a no-op.
- noResult(node);
- break;
-
- case Nop:
- RELEASE_ASSERT_NOT_REACHED();
- break;
-
+ case NativeCall:
+ case NativeConstruct:
case LastNodeType:
- RELEASE_ASSERT_NOT_REACHED();
+ case Phi:
+ case Upsilon:
+ case ExtractOSREntryLocal:
+ case CheckInBounds:
+ case ArithIMul:
+ case MultiGetByOffset:
+ case MultiPutByOffset:
+ case FiatInt52:
+ case CheckBadCell:
+ case BottomValue:
+ case PhantomNewObject:
+ case PhantomNewFunction:
+ case PhantomCreateActivation:
+ case GetMyArgumentByVal:
+ case PutHint:
+ case CheckStructureImmediate:
+ case MaterializeNewObject:
+ case MaterializeCreateActivation:
+ case PutStack:
+ case KillStack:
+ case GetStack:
+ DFG_CRASH(m_jit.graph(), node, "Unexpected node");
break;
}
-#if ENABLE(DFG_REGISTER_ALLOCATION_VALIDATION)
- m_jit.clearRegisterAllocationOffsets();
-#endif
-
if (!m_compileOkay)
return;
use(node);
}
+#if ENABLE(GGC)
+void SpeculativeJIT::writeBarrier(GPRReg ownerGPR, GPRReg valueGPR, Edge valueUse, GPRReg scratch1, GPRReg scratch2)
+{
+ JITCompiler::Jump isNotCell;
+ if (!isKnownCell(valueUse.node()))
+ isNotCell = m_jit.branchIfNotCell(JSValueRegs(valueGPR));
+
+ JITCompiler::Jump ownerIsRememberedOrInEden = m_jit.jumpIfIsRememberedOrInEden(ownerGPR);
+ storeToWriteBarrierBuffer(ownerGPR, scratch1, scratch2);
+ ownerIsRememberedOrInEden.link(&m_jit);
+
+ if (!isKnownCell(valueUse.node()))
+ isNotCell.link(&m_jit);
+}
+#endif // ENABLE(GGC)
+
+void SpeculativeJIT::moveTrueTo(GPRReg gpr)
+{
+ m_jit.move(TrustedImm32(ValueTrue), gpr);
+}
+
+void SpeculativeJIT::moveFalseTo(GPRReg gpr)
+{
+ m_jit.move(TrustedImm32(ValueFalse), gpr);
+}
+
+void SpeculativeJIT::blessBoolean(GPRReg gpr)
+{
+ m_jit.or32(TrustedImm32(ValueFalse), gpr);
+}
+
+void SpeculativeJIT::convertMachineInt(Edge valueEdge, GPRReg resultGPR)
+{
+ JSValueOperand value(this, valueEdge, ManualOperandSpeculation);
+ GPRReg valueGPR = value.gpr();
+
+ JITCompiler::Jump notInt32 =
+ m_jit.branch64(JITCompiler::Below, valueGPR, GPRInfo::tagTypeNumberRegister);
+
+ m_jit.signExtend32ToPtr(valueGPR, resultGPR);
+ JITCompiler::Jump done = m_jit.jump();
+
+ notInt32.link(&m_jit);
+ silentSpillAllRegisters(resultGPR);
+ callOperation(operationConvertBoxedDoubleToInt52, resultGPR, valueGPR);
+ silentFillAllRegisters(resultGPR);
+
+ DFG_TYPE_CHECK(
+ JSValueRegs(valueGPR), valueEdge, SpecInt32 | SpecInt52AsDouble,
+ m_jit.branch64(
+ JITCompiler::Equal, resultGPR,
+ JITCompiler::TrustedImm64(JSValue::notInt52)));
+ done.link(&m_jit);
+}
+
+void SpeculativeJIT::speculateMachineInt(Edge edge)
+{
+ if (!needsTypeCheck(edge, SpecInt32 | SpecInt52AsDouble))
+ return;
+
+ GPRTemporary temp(this);
+ convertMachineInt(edge, temp.gpr());
+}
+
+void SpeculativeJIT::speculateDoubleRepMachineInt(Edge edge)
+{
+ if (!needsTypeCheck(edge, SpecInt52AsDouble))
+ return;
+
+ SpeculateDoubleOperand value(this, edge);
+ FPRReg valueFPR = value.fpr();
+
+ GPRFlushedCallResult result(this);
+ GPRReg resultGPR = result.gpr();
+
+ flushRegisters();
+
+ callOperation(operationConvertDoubleToInt52, resultGPR, valueFPR);
+
+ DFG_TYPE_CHECK(
+ JSValueRegs(), edge, SpecInt52AsDouble,
+ m_jit.branch64(
+ JITCompiler::Equal, resultGPR,
+ JITCompiler::TrustedImm64(JSValue::notInt52)));
+}
+
#endif
} } // namespace JSC::DFG
projects / apple / javascriptcore.git / blobdiff