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/*========================== begin_copyright_notice ============================
Copyright (C) 2022 Intel Corporation
SPDX-License-Identifier: MIT
============================= end_copyright_notice ===========================*/
#include "Compiler/RemoveCodeAssumptions.hpp"
#include "Compiler/IGCPassSupport.h"
using namespace llvm;
using namespace IGC;
// Register pass to igc-opt
#define PASS_FLAG "igc-remove-code-assumptions"
#define PASS_DESCRIPTION "Remove code assumptions from the module"
#define PASS_CFG_ONLY false
#define PASS_ANALYSIS false
IGC_INITIALIZE_PASS_BEGIN(RemoveCodeAssumptions, PASS_FLAG, PASS_DESCRIPTION, PASS_CFG_ONLY, PASS_ANALYSIS)
IGC_INITIALIZE_PASS_END(RemoveCodeAssumptions, PASS_FLAG, PASS_DESCRIPTION, PASS_CFG_ONLY, PASS_ANALYSIS)
char RemoveCodeAssumptions::ID = 0;
RemoveCodeAssumptions::RemoveCodeAssumptions() : FunctionPass(ID) {
initializeRemoveCodeAssumptionsPass(*PassRegistry::getPassRegistry());
}
bool RemoveCodeAssumptions::runOnFunction(Function &F) {
visit(F);
bool changed = m_instructionsToRemove.size() > 0;
for (auto I : m_instructionsToRemove) {
I->eraseFromParent();
}
m_instructionsToRemove.clear();
return changed;
}
void RemoveCodeAssumptions::visitIntrinsicInst(llvm::IntrinsicInst &I) {
auto intrinsicID = I.getIntrinsicID();
switch (intrinsicID) {
case Intrinsic::assume:
m_instructionsToRemove.push_back(&I);
break;
default:
break;
}
}
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