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//===- SPIRVLowerMemmove.h - memmove lowering --------*- C++ -*-===//
//
// The LLVM/SPIR-V Translator
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
// Copyright (c) 2022 The Khronos Group Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the "Software"),
// to deal with the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the
// Software is furnished to do so, subject to the following conditions:
//
// Redistributions of source code must retain the above copyright notice,
// this list of conditions and the following disclaimers.
// Redistributions in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimers in the documentation
// and/or other materials provided with the distribution.
// Neither the names of The Khronos Group, nor the names of its
// contributors may be used to endorse or promote products derived from this
// Software without specific prior written permission.
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// CONTRIBUTORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS WITH
// THE SOFTWARE.
//
//===----------------------------------------------------------------------===//
//
// This file implements lowering llvm.memmove into several llvm.memcpys.
//
//===----------------------------------------------------------------------===//
#ifndef SPIRV_SPIRVLOWERMEMMOVE_H
#define SPIRV_SPIRVLOWERMEMMOVE_H
#include "llvm/IR/IntrinsicInst.h"
#include "llvm/IR/Module.h"
#include "llvm/IR/PassManager.h"
#include "llvm/Pass.h"
namespace SPIRV {
class SPIRVLowerMemmoveBase {
public:
SPIRVLowerMemmoveBase() : Context(nullptr) {}
void LowerMemMoveInst(llvm::MemMoveInst &I);
bool expandMemMoveIntrinsicUses(llvm::Function &F);
bool runLowerMemmove(llvm::Module &M);
private:
llvm::LLVMContext *Context;
};
class SPIRVLowerMemmovePass : public llvm::PassInfoMixin<SPIRVLowerMemmovePass>,
public SPIRVLowerMemmoveBase {
public:
llvm::PreservedAnalyses run(llvm::Module &M,
llvm::ModuleAnalysisManager &MAM);
static bool isRequired() { return true; }
};
class SPIRVLowerMemmoveLegacy : public llvm::ModulePass,
public SPIRVLowerMemmoveBase {
public:
SPIRVLowerMemmoveLegacy();
bool runOnModule(llvm::Module &M) override;
static char ID;
};
} // namespace SPIRV
#endif // SPIRV_SPIRVLOWERMEMMOVE_H
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