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/*========================== begin_copyright_notice ============================
Copyright (C) 2020-2021 Intel Corporation
SPDX-License-Identifier: MIT
============================= end_copyright_notice ===========================*/
#pragma once
#include "Compiler/CISACodeGen/WIAnalysis.hpp"
#include "common/LLVMWarningsPush.hpp"
#include <llvm/Pass.h>
#include <llvm/IR/InstVisitor.h>
#include <llvm/ADT/SmallVector.h>
#include "common/LLVMWarningsPop.hpp"
namespace IGC {
llvm::FunctionPass *createAnnotateUniformAllocasPass();
class AnnotateUniformAllocas : public llvm::FunctionPass, public llvm::InstVisitor<AnnotateUniformAllocas> {
public:
static char ID;
AnnotateUniformAllocas();
virtual llvm::StringRef getPassName() const override { return "Annotate Uniform Allocas Pass"; }
virtual void getAnalysisUsage(llvm::AnalysisUsage &AU) const override {
AU.addRequired<WIAnalysis>();
AU.setPreservesCFG();
// expect to run WIA again after this pass puts annotations on uniform alloca
}
virtual bool runOnFunction(llvm::Function &F) override;
void visitAllocaInst(llvm::AllocaInst &I);
void visitCallInst(llvm::CallInst &I);
private:
WIAnalysis *WI = nullptr;
bool m_changed = false;
llvm::SmallVector<llvm::Instruction *, 4> AssumeToErase;
};
} // namespace IGC
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