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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
* vim: set ts=8 sts=4 et sw=4 tw=99:
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef jit_arm_CodeGenerator_arm_h
#define jit_arm_CodeGenerator_arm_h
#include "jit/arm/Assembler-arm.h"
#include "jit/shared/CodeGenerator-shared.h"
namespace js {
namespace jit {
class OutOfLineBailout;
class OutOfLineTableSwitch;
class CodeGeneratorARM : public CodeGeneratorShared
{
friend class MoveResolverARM;
CodeGeneratorARM* thisFromCtor() {return this;}
protected:
NonAssertingLabel deoptLabel_;
MoveOperand toMoveOperand(LAllocation a) const;
void bailoutIf(Assembler::Condition condition, LSnapshot* snapshot);
void bailoutFrom(Label* label, LSnapshot* snapshot);
void bailout(LSnapshot* snapshot);
template <typename T1, typename T2>
void bailoutCmpPtr(Assembler::Condition c, T1 lhs, T2 rhs, LSnapshot* snapshot) {
masm.cmpPtr(lhs, rhs);
bailoutIf(c, snapshot);
}
void bailoutTestPtr(Assembler::Condition c, Register lhs, Register rhs, LSnapshot* snapshot) {
masm.testPtr(lhs, rhs);
bailoutIf(c, snapshot);
}
template <typename T1, typename T2>
void bailoutCmp32(Assembler::Condition c, T1 lhs, T2 rhs, LSnapshot* snapshot) {
masm.cmp32(lhs, rhs);
bailoutIf(c, snapshot);
}
template <typename T1, typename T2>
void bailoutTest32(Assembler::Condition c, T1 lhs, T2 rhs, LSnapshot* snapshot) {
masm.test32(lhs, rhs);
bailoutIf(c, snapshot);
}
void bailoutIfFalseBool(Register reg, LSnapshot* snapshot) {
masm.test32(reg, Imm32(0xFF));
bailoutIf(Assembler::Zero, snapshot);
}
template<class T>
void generateUDivModZeroCheck(Register rhs, Register output, Label* done, LSnapshot* snapshot,
T* mir);
protected:
bool generateOutOfLineCode();
void emitRoundDouble(FloatRegister src, Register dest, Label* fail);
// Emits a branch that directs control flow to the true block if |cond| is
// true, and the false block if |cond| is false.
void emitBranch(Assembler::Condition cond, MBasicBlock* ifTrue, MBasicBlock* ifFalse);
void testNullEmitBranch(Assembler::Condition cond, const ValueOperand& value,
MBasicBlock* ifTrue, MBasicBlock* ifFalse)
{
cond = masm.testNull(cond, value);
emitBranch(cond, ifTrue, ifFalse);
}
void testUndefinedEmitBranch(Assembler::Condition cond, const ValueOperand& value,
MBasicBlock* ifTrue, MBasicBlock* ifFalse)
{
cond = masm.testUndefined(cond, value);
emitBranch(cond, ifTrue, ifFalse);
}
void testObjectEmitBranch(Assembler::Condition cond, const ValueOperand& value,
MBasicBlock* ifTrue, MBasicBlock* ifFalse)
{
cond = masm.testObject(cond, value);
emitBranch(cond, ifTrue, ifFalse);
}
void testZeroEmitBranch(Assembler::Condition cond, Register reg,
MBasicBlock* ifTrue, MBasicBlock* ifFalse)
{
MOZ_ASSERT(cond == Assembler::Equal || cond == Assembler::NotEqual);
masm.cmpPtr(reg, ImmWord(0));
emitBranch(cond, ifTrue, ifFalse);
}
void emitTableSwitchDispatch(MTableSwitch* mir, Register index, Register base);
template <typename T>
void emitWasmLoad(T* ins);
template <typename T>
void emitWasmUnalignedLoad(T* ins);
template <typename T>
void emitWasmStore(T* ins);
template <typename T>
void emitWasmUnalignedStore(T* ins);
public:
// Instruction visitors.
virtual void visitMinMaxD(LMinMaxD* ins);
virtual void visitMinMaxF(LMinMaxF* ins);
virtual void visitAbsD(LAbsD* ins);
virtual void visitAbsF(LAbsF* ins);
virtual void visitSqrtD(LSqrtD* ins);
virtual void visitSqrtF(LSqrtF* ins);
virtual void visitAddI(LAddI* ins);
virtual void visitSubI(LSubI* ins);
virtual void visitBitNotI(LBitNotI* ins);
virtual void visitBitOpI(LBitOpI* ins);
virtual void visitMulI(LMulI* ins);
virtual void visitDivI(LDivI* ins);
virtual void visitSoftDivI(LSoftDivI* ins);
virtual void visitDivPowTwoI(LDivPowTwoI* ins);
virtual void visitModI(LModI* ins);
virtual void visitSoftModI(LSoftModI* ins);
virtual void visitModPowTwoI(LModPowTwoI* ins);
virtual void visitModMaskI(LModMaskI* ins);
virtual void visitPowHalfD(LPowHalfD* ins);
virtual void visitShiftI(LShiftI* ins);
virtual void visitShiftI64(LShiftI64* ins);
virtual void visitUrshD(LUrshD* ins);
virtual void visitClzI(LClzI* ins);
virtual void visitCtzI(LCtzI* ins);
virtual void visitPopcntI(LPopcntI* ins);
virtual void visitTestIAndBranch(LTestIAndBranch* test);
virtual void visitCompare(LCompare* comp);
virtual void visitCompareAndBranch(LCompareAndBranch* comp);
virtual void visitTestDAndBranch(LTestDAndBranch* test);
virtual void visitTestFAndBranch(LTestFAndBranch* test);
virtual void visitCompareD(LCompareD* comp);
virtual void visitCompareF(LCompareF* comp);
virtual void visitCompareDAndBranch(LCompareDAndBranch* comp);
virtual void visitCompareFAndBranch(LCompareFAndBranch* comp);
virtual void visitCompareB(LCompareB* lir);
virtual void visitCompareBAndBranch(LCompareBAndBranch* lir);
virtual void visitCompareBitwise(LCompareBitwise* lir);
virtual void visitCompareBitwiseAndBranch(LCompareBitwiseAndBranch* lir);
virtual void visitBitAndAndBranch(LBitAndAndBranch* baab);
virtual void visitWasmUint32ToDouble(LWasmUint32ToDouble* lir);
virtual void visitWasmUint32ToFloat32(LWasmUint32ToFloat32* lir);
virtual void visitNotI(LNotI* ins);
virtual void visitNotD(LNotD* ins);
virtual void visitNotF(LNotF* ins);
virtual void visitMathD(LMathD* math);
virtual void visitMathF(LMathF* math);
virtual void visitFloor(LFloor* lir);
virtual void visitFloorF(LFloorF* lir);
virtual void visitCeil(LCeil* lir);
virtual void visitCeilF(LCeilF* lir);
virtual void visitRound(LRound* lir);
virtual void visitRoundF(LRoundF* lir);
virtual void visitTruncateDToInt32(LTruncateDToInt32* ins);
virtual void visitTruncateFToInt32(LTruncateFToInt32* ins);
virtual void visitWrapInt64ToInt32(LWrapInt64ToInt32* lir);
virtual void visitExtendInt32ToInt64(LExtendInt32ToInt64* lir);
virtual void visitAddI64(LAddI64* lir);
virtual void visitSubI64(LSubI64* lir);
virtual void visitMulI64(LMulI64* lir);
virtual void visitDivOrModI64(LDivOrModI64* lir);
virtual void visitUDivOrModI64(LUDivOrModI64* lir);
virtual void visitCompareI64(LCompareI64* lir);
virtual void visitCompareI64AndBranch(LCompareI64AndBranch* lir);
virtual void visitBitOpI64(LBitOpI64* lir);
virtual void visitRotateI64(LRotateI64* lir);
virtual void visitWasmStackArgI64(LWasmStackArgI64* lir);
virtual void visitWasmSelectI64(LWasmSelectI64* lir);
virtual void visitWasmReinterpretFromI64(LWasmReinterpretFromI64* lir);
virtual void visitWasmReinterpretToI64(LWasmReinterpretToI64* lir);
virtual void visitPopcntI64(LPopcntI64* ins);
virtual void visitClzI64(LClzI64* ins);
virtual void visitCtzI64(LCtzI64* ins);
virtual void visitNotI64(LNotI64* ins);
virtual void visitWasmTruncateToInt64(LWasmTruncateToInt64* ins);
virtual void visitInt64ToFloatingPointCall(LInt64ToFloatingPointCall* lir);
virtual void visitTestI64AndBranch(LTestI64AndBranch* lir);
// Out of line visitors.
void visitOutOfLineBailout(OutOfLineBailout* ool);
void visitOutOfLineTableSwitch(OutOfLineTableSwitch* ool);
protected:
ValueOperand ToValue(LInstruction* ins, size_t pos);
ValueOperand ToOutValue(LInstruction* ins);
ValueOperand ToTempValue(LInstruction* ins, size_t pos);
Register64 ToOperandOrRegister64(const LInt64Allocation input);
// Functions for LTestVAndBranch.
Register splitTagForTest(const ValueOperand& value);
void divICommon(MDiv* mir, Register lhs, Register rhs, Register output, LSnapshot* snapshot,
Label& done);
void modICommon(MMod* mir, Register lhs, Register rhs, Register output, LSnapshot* snapshot,
Label& done);
public:
CodeGeneratorARM(MIRGenerator* gen, LIRGraph* graph, MacroAssembler* masm);
public:
void visitBox(LBox* box);
void visitBoxFloatingPoint(LBoxFloatingPoint* box);
void visitUnbox(LUnbox* unbox);
void visitValue(LValue* value);
void visitDouble(LDouble* ins);
void visitFloat32(LFloat32* ins);
void visitGuardShape(LGuardShape* guard);
void visitGuardObjectGroup(LGuardObjectGroup* guard);
void visitGuardClass(LGuardClass* guard);
void visitNegI(LNegI* lir);
void visitNegD(LNegD* lir);
void visitNegF(LNegF* lir);
void visitLoadTypedArrayElementStatic(LLoadTypedArrayElementStatic* ins);
void visitStoreTypedArrayElementStatic(LStoreTypedArrayElementStatic* ins);
void visitAtomicTypedArrayElementBinop(LAtomicTypedArrayElementBinop* lir);
void visitAtomicTypedArrayElementBinopForEffect(LAtomicTypedArrayElementBinopForEffect* lir);
void visitCompareExchangeTypedArrayElement(LCompareExchangeTypedArrayElement* lir);
void visitAtomicExchangeTypedArrayElement(LAtomicExchangeTypedArrayElement* lir);
void visitWasmSelect(LWasmSelect* ins);
void visitWasmReinterpret(LWasmReinterpret* ins);
void emitWasmCall(LWasmCallBase* ins);
void visitWasmCall(LWasmCall* ins);
void visitWasmCallI64(LWasmCallI64* ins);
void visitWasmLoad(LWasmLoad* ins);
void visitWasmLoadI64(LWasmLoadI64* ins);
void visitWasmUnalignedLoad(LWasmUnalignedLoad* ins);
void visitWasmUnalignedLoadI64(LWasmUnalignedLoadI64* ins);
void visitWasmAddOffset(LWasmAddOffset* ins);
void visitWasmStore(LWasmStore* ins);
void visitWasmStoreI64(LWasmStoreI64* ins);
void visitWasmUnalignedStore(LWasmUnalignedStore* ins);
void visitWasmUnalignedStoreI64(LWasmUnalignedStoreI64* ins);
void visitWasmLoadGlobalVar(LWasmLoadGlobalVar* ins);
void visitWasmLoadGlobalVarI64(LWasmLoadGlobalVarI64* ins);
void visitWasmStoreGlobalVar(LWasmStoreGlobalVar* ins);
void visitWasmStoreGlobalVarI64(LWasmStoreGlobalVarI64* ins);
void visitAsmJSLoadHeap(LAsmJSLoadHeap* ins);
void visitAsmJSStoreHeap(LAsmJSStoreHeap* ins);
void visitAsmJSCompareExchangeHeap(LAsmJSCompareExchangeHeap* ins);
void visitAsmJSCompareExchangeCallout(LAsmJSCompareExchangeCallout* ins);
void visitAsmJSAtomicExchangeHeap(LAsmJSAtomicExchangeHeap* ins);
void visitAsmJSAtomicExchangeCallout(LAsmJSAtomicExchangeCallout* ins);
void visitAsmJSAtomicBinopHeap(LAsmJSAtomicBinopHeap* ins);
void visitAsmJSAtomicBinopHeapForEffect(LAsmJSAtomicBinopHeapForEffect* ins);
void visitAsmJSAtomicBinopCallout(LAsmJSAtomicBinopCallout* ins);
void visitWasmStackArg(LWasmStackArg* ins);
void visitWasmTruncateToInt32(LWasmTruncateToInt32* ins);
void visitOutOfLineWasmTruncateCheck(OutOfLineWasmTruncateCheck* ool);
void visitCopySignD(LCopySignD* ins);
void visitCopySignF(LCopySignF* ins);
void visitMemoryBarrier(LMemoryBarrier* ins);
void generateInvalidateEpilogue();
void setReturnDoubleRegs(LiveRegisterSet* regs);
// Generating a result.
template<typename S, typename T>
void atomicBinopToTypedIntArray(AtomicOp op, Scalar::Type arrayType, const S& value,
const T& mem, Register flagTemp, Register outTemp,
AnyRegister output);
// Generating no result.
template<typename S, typename T>
void atomicBinopToTypedIntArray(AtomicOp op, Scalar::Type arrayType, const S& value,
const T& mem, Register flagTemp);
protected:
void visitEffectiveAddress(LEffectiveAddress* ins);
void visitUDiv(LUDiv* ins);
void visitUMod(LUMod* ins);
void visitSoftUDivOrMod(LSoftUDivOrMod* ins);
public:
// Unimplemented SIMD instructions
void visitSimdSplatX4(LSimdSplatX4* lir) { MOZ_CRASH("NYI"); }
void visitSimd128Int(LSimd128Int* ins) { MOZ_CRASH("NYI"); }
void visitSimd128Float(LSimd128Float* ins) { MOZ_CRASH("NYI"); }
void visitSimdReinterpretCast(LSimdReinterpretCast* ins) { MOZ_CRASH("NYI"); }
void visitSimdExtractElementI(LSimdExtractElementI* ins) { MOZ_CRASH("NYI"); }
void visitSimdExtractElementF(LSimdExtractElementF* ins) { MOZ_CRASH("NYI"); }
void visitSimdGeneralShuffleI(LSimdGeneralShuffleI* lir) { MOZ_CRASH("NYI"); }
void visitSimdGeneralShuffleF(LSimdGeneralShuffleF* lir) { MOZ_CRASH("NYI"); }
void visitSimdSwizzleI(LSimdSwizzleI* lir) { MOZ_CRASH("NYI"); }
void visitSimdSwizzleF(LSimdSwizzleF* lir) { MOZ_CRASH("NYI"); }
void visitSimdBinaryCompIx4(LSimdBinaryCompIx4* lir) { MOZ_CRASH("NYI"); }
void visitSimdBinaryCompFx4(LSimdBinaryCompFx4* lir) { MOZ_CRASH("NYI"); }
void visitSimdBinaryArithIx4(LSimdBinaryArithIx4* lir) { MOZ_CRASH("NYI"); }
void visitSimdBinaryArithFx4(LSimdBinaryArithFx4* lir) { MOZ_CRASH("NYI"); }
void visitSimdBinaryBitwise(LSimdBinaryBitwise* lir) { MOZ_CRASH("NYI"); }
};
typedef CodeGeneratorARM CodeGeneratorSpecific;
// An out-of-line bailout thunk.
class OutOfLineBailout : public OutOfLineCodeBase<CodeGeneratorARM>
{
protected: // Silence Clang warning.
LSnapshot* snapshot_;
uint32_t frameSize_;
public:
OutOfLineBailout(LSnapshot* snapshot, uint32_t frameSize)
: snapshot_(snapshot),
frameSize_(frameSize)
{ }
void accept(CodeGeneratorARM* codegen);
LSnapshot* snapshot() const {
return snapshot_;
}
};
} // namespace jit
} // namespace js
#endif /* jit_arm_CodeGenerator_arm_h */
|
