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/*========================== begin_copyright_notice ============================
Copyright (C) 2023 Intel Corporation
SPDX-License-Identifier: MIT
============================= end_copyright_notice ===========================*/
//
/// GenXLegalizeGVLoadUses
///
//===----------------------------------------------------------------------===//
#include "GenX.h"
#include "GenXUtil.h"
#include "llvm/IR/Module.h"
#include "llvm/InitializePasses.h"
#include "llvm/Pass.h"
#include "llvm/Support/Debug.h"
#include "GenXRegionUtils.h"
#include "vc/GenXOpts/GenXOpts.h"
#define DEBUG_TYPE "GENX_LEGALIZE_GVLOAD_USES"
using namespace llvm;
class GenXLegalizeGVLoadUses : public ModulePass {
public:
static char ID;
explicit GenXLegalizeGVLoadUses() : ModulePass(ID) {}
llvm::StringRef getPassName() const override {
return "GenXLegalizeGVLoadUses";
}
bool runOnModule(Module &M) override;
};
bool GenXLegalizeGVLoadUses::runOnModule(Module &M) {
bool Changed = false;
for (auto &GV : M.globals()) {
if (!GV.hasAttribute(genx::FunctionMD::GenXVolatile))
continue;
for (auto UI = GV.user_begin(), E = GV.user_end(); UI != E;)
if (auto *I = dyn_cast<Instruction>(*UI++); I && genx::isAGVLoad(I))
Changed |= genx::legalizeGVLoadForbiddenUsers(I);
}
return Changed;
}
char GenXLegalizeGVLoadUses::ID = 0;
namespace llvm {
void initializeGenXLegalizeGVLoadUsesPass(PassRegistry &);
}
#if LLVM_VERSION_MAJOR >= 16
llvm::PreservedAnalyses
GenXLegalizeGVLoadUsesPass::run(llvm::Module &M,
llvm::AnalysisManager<llvm::Module> &) {
GenXLegalizeGVLoadUses GenXLegal;
if (GenXLegal.runOnModule(M))
return PreservedAnalyses::none();
return PreservedAnalyses::all();
}
#endif // LLVM_VERSION_MAJOR >= 16
INITIALIZE_PASS_BEGIN(GenXLegalizeGVLoadUses, "GenXLegalizeGVLoadUses",
"GenXLegalizeGVLoadUses", false, false)
INITIALIZE_PASS_END(GenXLegalizeGVLoadUses, "GenXLegalizeGVLoadUses",
"GenXLegalizeGVLoadUses", false, false)
ModulePass *llvm::createGenXLegalizeGVLoadUsesPass() {
initializeGenXLegalizeGVLoadUsesPass(*PassRegistry::getPassRegistry());
return new GenXLegalizeGVLoadUses;
}
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