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/*========================== begin_copyright_notice ============================
Copyright (C) 2017-2021 Intel Corporation
SPDX-License-Identifier: MIT
============================= end_copyright_notice ===========================*/
#include "Compiler/Optimizer/OpenCLPasses/WGFuncs/WGFuncResolution.hpp"
#include "Compiler/IGCPassSupport.h"
#include "common/LLVMWarningsPush.hpp"
#include <llvm/IR/Module.h>
#include "common/LLVMWarningsPop.hpp"
#include "GenISAIntrinsics/GenIntrinsics.h"
using namespace llvm;
using namespace IGC;
// Register pass to igc-opt
#define PASS_FLAG "igc-wg-resolution"
#define PASS_DESCRIPTION "Resolve WG built-in"
#define PASS_CFG_ONLY false
#define PASS_ANALYSIS false
IGC_INITIALIZE_PASS_BEGIN(WGFuncResolution, PASS_FLAG, PASS_DESCRIPTION, PASS_CFG_ONLY, PASS_ANALYSIS)
IGC_INITIALIZE_PASS_END(WGFuncResolution, PASS_FLAG, PASS_DESCRIPTION, PASS_CFG_ONLY, PASS_ANALYSIS)
char WGFuncResolution::ID = 0;
WGFuncResolution::WGFuncResolution() : ModulePass(ID)
{
initializeWGFuncResolutionPass(*PassRegistry::getPassRegistry());
}
bool WGFuncResolution::runOnModule(Module& M)
{
m_changed = false;
m_pModule = &M;
visit(M);
return m_changed;
}
void WGFuncResolution::visitCallInst(CallInst& callInst)
{
Function* pCalledFunc = callInst.getCalledFunction();
if (!pCalledFunc)
{
// Indirect call
return;
}
StringRef funcName = pCalledFunc->getName();
if (funcName.startswith("__builtin_IB_work_group_any"))
{
SmallVector<Value*, 1> args;
args.push_back(callInst.getOperand(0));
Function* isaIntrinFunc = GenISAIntrinsic::getDeclaration(m_pModule, GenISAIntrinsic::GenISA_WorkGroupAny);
CallInst* isaIntrinCall = CallInst::Create(isaIntrinFunc, args, callInst.getName(), &callInst);
isaIntrinCall->setDebugLoc(callInst.getDebugLoc());
callInst.replaceAllUsesWith(isaIntrinCall);
callInst.eraseFromParent();
m_changed = true;
}
}
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