Source code

Revision control

Other Tools

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
* vim: set ts=8 sts=2 et sw=2 tw=80:
* 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_mips_shared_CodeGenerator_mips_shared_h
#define jit_mips_shared_CodeGenerator_mips_shared_h
#include "jit/shared/CodeGenerator-shared.h"
namespace js {
namespace jit {
class CodeGeneratorMIPSShared;
class OutOfLineBailout;
class OutOfLineTableSwitch;
using OutOfLineWasmTruncateCheck =
OutOfLineWasmTruncateCheckBase<CodeGeneratorMIPSShared>;
class CodeGeneratorMIPSShared : public CodeGeneratorShared {
friend class MoveResolverMIPS;
protected:
CodeGeneratorMIPSShared(MIRGenerator* gen, LIRGraph* graph,
MacroAssembler* masm);
NonAssertingLabel deoptLabel_;
Operand ToOperand(const LAllocation& a);
Operand ToOperand(const LAllocation* a);
Operand ToOperand(const LDefinition* def);
#ifdef JS_PUNBOX64
Operand ToOperandOrRegister64(const LInt64Allocation input);
#else
Register64 ToOperandOrRegister64(const LInt64Allocation input);
#endif
MoveOperand toMoveOperand(LAllocation a) const;
template <typename T1, typename T2>
void bailoutCmp32(Assembler::Condition c, T1 lhs, T2 rhs,
LSnapshot* snapshot) {
Label bail;
masm.branch32(c, lhs, rhs, &bail);
bailoutFrom(&bail, snapshot);
}
template <typename T1, typename T2>
void bailoutTest32(Assembler::Condition c, T1 lhs, T2 rhs,
LSnapshot* snapshot) {
Label bail;
masm.branchTest32(c, lhs, rhs, &bail);
bailoutFrom(&bail, snapshot);
}
template <typename T1, typename T2>
void bailoutCmpPtr(Assembler::Condition c, T1 lhs, T2 rhs,
LSnapshot* snapshot) {
Label bail;
masm.branchPtr(c, lhs, rhs, &bail);
bailoutFrom(&bail, snapshot);
}
void bailoutTestPtr(Assembler::Condition c, Register lhs, Register rhs,
LSnapshot* snapshot) {
Label bail;
masm.branchTestPtr(c, lhs, rhs, &bail);
bailoutFrom(&bail, snapshot);
}
void bailoutIfFalseBool(Register reg, LSnapshot* snapshot) {
Label bail;
masm.branchTest32(Assembler::Zero, reg, Imm32(0xFF), &bail);
bailoutFrom(&bail, snapshot);
}
void bailoutFrom(Label* label, LSnapshot* snapshot);
void bailout(LSnapshot* snapshot);
bool generateOutOfLineCode();
template <typename T>
void branchToBlock(Register lhs, T rhs, MBasicBlock* mir,
Assembler::Condition cond) {
masm.ma_b(lhs, rhs, skipTrivialBlocks(mir)->lir()->label(), cond);
}
void branchToBlock(Assembler::FloatFormat fmt, FloatRegister lhs,
FloatRegister rhs, MBasicBlock* mir,
Assembler::DoubleCondition cond);
// Emits a branch that directs control flow to the true block if |cond| is
// true, and the false block if |cond| is false.
template <typename T>
void emitBranch(Register lhs, T rhs, Assembler::Condition cond,
MBasicBlock* mirTrue, MBasicBlock* mirFalse) {
if (isNextBlock(mirFalse->lir())) {
branchToBlock(lhs, rhs, mirTrue, cond);
} else {
branchToBlock(lhs, rhs, mirFalse, Assembler::InvertCondition(cond));
jumpToBlock(mirTrue);
}
}
void testZeroEmitBranch(Assembler::Condition cond, Register reg,
MBasicBlock* ifTrue, MBasicBlock* ifFalse) {
emitBranch(reg, Imm32(0), cond, ifTrue, ifFalse);
}
void emitTableSwitchDispatch(MTableSwitch* mir, Register index,
Register base);
template <typename T>
void emitWasmLoad(T* ins);
template <typename T>
void emitWasmStore(T* ins);
void generateInvalidateEpilogue();
// 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,
Register valueTemp, Register offsetTemp,
Register maskTemp, 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, Register valueTemp,
Register offsetTemp, Register maskTemp);
public:
// Out of line visitors.
void visitOutOfLineBailout(OutOfLineBailout* ool);
void visitOutOfLineTableSwitch(OutOfLineTableSwitch* ool);
void visitOutOfLineWasmTruncateCheck(OutOfLineWasmTruncateCheck* ool);
};
// An out-of-line bailout thunk.
class OutOfLineBailout : public OutOfLineCodeBase<CodeGeneratorMIPSShared> {
protected:
LSnapshot* snapshot_;
uint32_t frameSize_;
public:
OutOfLineBailout(LSnapshot* snapshot, uint32_t frameSize)
: snapshot_(snapshot), frameSize_(frameSize) {}
void accept(CodeGeneratorMIPSShared* codegen) override;
LSnapshot* snapshot() const { return snapshot_; }
};
} // namespace jit
} // namespace js
#endif /* jit_mips_shared_CodeGenerator_mips_shared_h */