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Transforms
Utils
LowerAtomic.h
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//===- LowerAtomic.h - Lower atomic intrinsics ------------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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/// \file
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// This pass lowers atomic intrinsics to non-atomic form for use in a known
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// non-preemptible environment.
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///
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_TRANSFORMS_UTILS_LOWERATOMIC_H
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#define LLVM_TRANSFORMS_UTILS_LOWERATOMIC_H
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#include "
llvm/IR/Instructions.h
"
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namespace
llvm
{
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class
IRBuilderBase;
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/// Convert the given Cmpxchg into primitive load and compare.
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bool
lowerAtomicCmpXchgInst
(AtomicCmpXchgInst *CXI);
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/// Convert the given RMWI into primitive load and stores,
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/// assuming that doing so is legal. Return true if the lowering
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/// succeeds.
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bool
lowerAtomicRMWInst
(AtomicRMWInst *RMWI);
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/// Emit IR to implement the given atomicrmw operation on values in registers,
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/// returning the new value.
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Value
*
buildAtomicRMWValue
(
AtomicRMWInst::BinOp
Op
, IRBuilderBase &
Builder
,
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Value
*Loaded,
Value
*Inc);
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}
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#endif // LLVM_TRANSFORMS_UTILS_LOWERATOMIC_H
llvm
This is an optimization pass for GlobalISel generic memory operations.
Definition:
AddressRanges.h:17
llvm::AtomicRMWInst::BinOp
BinOp
This enumeration lists the possible modifications atomicrmw can make.
Definition:
Instructions.h:727
llvm::lowerAtomicRMWInst
bool lowerAtomicRMWInst(AtomicRMWInst *RMWI)
Convert the given RMWI into primitive load and stores, assuming that doing so is legal.
Definition:
LowerAtomic.cpp:86
llvm::lowerAtomicCmpXchgInst
bool lowerAtomicCmpXchgInst(AtomicCmpXchgInst *CXI)
Convert the given Cmpxchg into primitive load and compare.
Definition:
LowerAtomic.cpp:23
llvm::buildAtomicRMWValue
Value * buildAtomicRMWValue(AtomicRMWInst::BinOp Op, IRBuilderBase &Builder, Value *Loaded, Value *Inc)
Emit IR to implement the given atomicrmw operation on values in registers, returning the new value.
Definition:
LowerAtomic.cpp:42
Builder
assume Assume Builder
Definition:
AssumeBundleBuilder.cpp:651
llvm::AMDGPU::SendMsg::Op
Op
Definition:
SIDefines.h:348
llvm::TargetStackID::Value
Value
Definition:
TargetFrameLowering.h:27
Instructions.h
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