/* -*- 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_arm64_LIR_arm64_h
#define jit_arm64_LIR_arm64_h
namespace js {
namespace jit {
class LUnbox :
public LInstructionHelper<1, BOX_PIECES, 0> {
public:
LIR_HEADER(Unbox);
explicit LUnbox(
const LAllocation& input) : LInstructionHelper(classOpcode) {
setOperand(0, input);
}
static const size_t Input = 0;
LBoxAllocation input()
const {
return getBoxOperand(Input); }
MUnbox* mir()
const {
return mir_->toUnbox(); }
const char* extraName()
const {
return StringFromMIRType(mir()->type()); }
};
class LDivOrModI64 :
public LBinaryMath<0> {
public:
LIR_HEADER(DivOrModI64)
LDivOrModI64(
const LAllocation& lhs,
const LAllocation& rhs)
: LBinaryMath(classOpcode) {
setOperand(0, lhs);
setOperand(1, rhs);
}
MBinaryArithInstruction* mir()
const {
MOZ_ASSERT(mir_->isDiv() || mir_->isMod());
return static_cast<MBinaryArithInstruction*>(mir_);
}
bool canBeDivideByZero()
const {
if (mir_->isMod()) {
return mir_->toMod()->canBeDivideByZero();
}
return mir_->toDiv()->canBeDivideByZero();
}
bool canBeNegativeOverflow()
const {
if (mir_->isMod()) {
return mir_->toMod()->canBeNegativeDividend();
}
return mir_->toDiv()->canBeNegativeOverflow();
}
wasm::TrapSiteDesc trapSiteDesc()
const {
MOZ_ASSERT(mir_->isDiv() || mir_->isMod());
if (mir_->isMod()) {
return mir_->toMod()->trapSiteDesc();
}
return mir_->toDiv()->trapSiteDesc();
}
};
class LUDivOrModI64 :
public LBinaryMath<0> {
public:
LIR_HEADER(UDivOrModI64);
LUDivOrModI64(
const LAllocation& lhs,
const LAllocation& rhs)
: LBinaryMath(classOpcode) {
setOperand(0, lhs);
setOperand(1, rhs);
}
const char* extraName()
const {
return mir()->isTruncated() ?
"Truncated" : nullptr;
}
MBinaryArithInstruction* mir()
const {
MOZ_ASSERT(mir_->isDiv() || mir_->isMod());
return static_cast<MBinaryArithInstruction*>(mir_);
}
bool canBeDivideByZero()
const {
if (mir_->isMod()) {
return mir_->toMod()->canBeDivideByZero();
}
return mir_->toDiv()->canBeDivideByZero();
}
wasm::TrapSiteDesc trapSiteDesc()
const {
MOZ_ASSERT(mir_->isDiv() || mir_->isMod());
if (mir_->isMod()) {
return mir_->toMod()->trapSiteDesc();
}
return mir_->toDiv()->trapSiteDesc();
}
};
}
// namespace jit
}
// namespace js
#endif /* jit_arm64_LIR_arm64_h */
