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72 lines
2.3 KiB
C++
72 lines
2.3 KiB
C++
//===- llvm/unittest/Transforms/Vectorize/VPlanTestBase.h -----------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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/// \file
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/// This file defines a VPlanTestBase class, which provides helpers to parse
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/// a LLVM IR string and create VPlans given a loop entry block.
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_UNITTESTS_TRANSFORMS_VECTORIZE_VPLANTESTBASE_H
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#define LLVM_UNITTESTS_TRANSFORMS_VECTORIZE_VPLANTESTBASE_H
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#include "../lib/Transforms/Vectorize/VPlan.h"
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#include "../lib/Transforms/Vectorize/VPlanHCFGBuilder.h"
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#include "llvm/Analysis/LoopInfo.h"
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#include "llvm/AsmParser/Parser.h"
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#include "llvm/IR/Dominators.h"
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#include "llvm/Support/SourceMgr.h"
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#include "gtest/gtest.h"
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namespace llvm {
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/// Helper class to create a module from an assembly string and VPlans for a
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/// given loop entry block.
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class VPlanTestBase : public testing::Test {
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protected:
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std::unique_ptr<LLVMContext> Ctx;
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std::unique_ptr<Module> M;
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std::unique_ptr<LoopInfo> LI;
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std::unique_ptr<DominatorTree> DT;
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VPlanTestBase() : Ctx(new LLVMContext) {}
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Module &parseModule(const char *ModuleString) {
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SMDiagnostic Err;
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M = parseAssemblyString(ModuleString, Err, *Ctx);
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EXPECT_TRUE(M);
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return *M;
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}
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void doAnalysis(Function &F) {
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DT.reset(new DominatorTree(F));
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LI.reset(new LoopInfo(*DT));
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}
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VPlanPtr buildHCFG(BasicBlock *LoopHeader) {
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doAnalysis(*LoopHeader->getParent());
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auto Plan = llvm::make_unique<VPlan>();
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VPlanHCFGBuilder HCFGBuilder(LI->getLoopFor(LoopHeader), LI.get(), *Plan);
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HCFGBuilder.buildHierarchicalCFG();
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return Plan;
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}
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/// Build the VPlan plain CFG for the loop starting from \p LoopHeader.
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VPlanPtr buildPlainCFG(BasicBlock *LoopHeader) {
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doAnalysis(*LoopHeader->getParent());
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auto Plan = llvm::make_unique<VPlan>();
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VPlanHCFGBuilder HCFGBuilder(LI->getLoopFor(LoopHeader), LI.get(), *Plan);
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VPRegionBlock *TopRegion = HCFGBuilder.buildPlainCFG();
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Plan->setEntry(TopRegion);
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return Plan;
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}
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};
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} // namespace llvm
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#endif // LLVM_UNITTESTS_TRANSFORMS_VECTORIZE_VPLANTESTBASE_H
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