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/*========================== begin_copyright_notice ============================
Copyright (C) 2022 Intel Corporation
SPDX-License-Identifier: MIT
============================= end_copyright_notice ===========================*/
#pragma once
#include "Compiler/IGCPassSupport.h"
#include "Compiler/CodeGenPublic.h"
#include "Compiler/MetaDataUtilsWrapper.h"
#include "common/LLVMWarningsPush.hpp"
#include <llvm/Pass.h>
#include <llvm/IR/InstVisitor.h>
#include <llvm/Analysis/CallGraphSCCPass.h>
#include "common/LLVMWarningsPop.hpp"
namespace IGC
{
class PoisonFP64Kernels : public llvm::CallGraphSCCPass
{
public:
static char ID;
static const char *attributeName;
PoisonFP64Kernels();
virtual llvm::StringRef getPassName() const override
{
return "Poison FP64 Kernels";
}
void getAnalysisUsage(llvm::AnalysisUsage& AU) const override
{
AU.addRequired<CodeGenContextWrapper>();
AU.addRequired<MetaDataUtilsWrapper>();
}
virtual bool doInitialization(llvm::CallGraph &CG) override;
virtual bool runOnSCC(llvm::CallGraphSCC &SCC) override;
virtual bool doFinalization(llvm::CallGraph &CG) override;
void markForRemoval(llvm::Function *F);
private:
/* Use set as an index of found FP64 functions. Store the order in
* which they were encountered in sequential container. Since this is a
* CallGraphSCC pass the reverse of this order should give us the safe
* removal order (from callers to callees) */
llvm::SmallPtrSet<llvm::Function *, 8> fp64Functions;
llvm::SmallVector<llvm::Function *, 8> fp64FunctionsOrder;
};
} // namespace IGC
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