31b93d6e38
This patch adds VPValue sub-classes for the different cases we currently have: * VPIRValue: A live-in VPValue that wraps an underlying IR value * VPSymbolicValue: A symbolic VPValue not tied to an underlying value, e.g. the vector trip count or VF VPValues * VPRecipeValue: A VPValue defined by a VPDef/VPRecipeBase. This has multiple benefits: * clearer constructors for each kind of VPValue * limited scope: for example allows moving VPDef member to VPRecipeValue, reducing size of other VPValues. * stricter type checking for member variables (e.g. using VPLiveIn in the Value -> live-in map in VPlan, or using VPSymbolicValue for symbolic member VPValues) There probably are additional opportunities for cleanups as follow-ups. PR: https://github.com/llvm/llvm-project/pull/172758
80 lines
3.0 KiB
C++
80 lines
3.0 KiB
C++
//===- llvm/unittests/Transforms/Vectorize/VPlanPatternMatchTest.cpp ------===//
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//
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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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#include "../lib/Transforms/Vectorize/VPlanPatternMatch.h"
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#include "../lib/Transforms/Vectorize/LoopVectorizationPlanner.h"
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#include "../lib/Transforms/Vectorize/VPlan.h"
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#include "../lib/Transforms/Vectorize/VPlanHelpers.h"
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#include "VPlanTestBase.h"
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#include "llvm/IR/Instruction.h"
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#include "llvm/IR/Instructions.h"
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#include "gtest/gtest.h"
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namespace llvm {
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namespace {
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using VPPatternMatchTest = VPlanTestBase;
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TEST_F(VPPatternMatchTest, ScalarIVSteps) {
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VPlan &Plan = getPlan();
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VPBasicBlock *VPBB = Plan.createVPBasicBlock("");
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VPBuilder Builder(VPBB);
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IntegerType *I64Ty = IntegerType::get(C, 64);
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VPIRValue *StartV = Plan.getConstantInt(I64Ty, 0);
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auto *CanonicalIVPHI = new VPCanonicalIVPHIRecipe(StartV, DebugLoc());
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Builder.insert(CanonicalIVPHI);
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VPValue *Inc = Plan.getOrAddLiveIn(ConstantInt::get(I64Ty, 1));
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VPValue *VF = &Plan.getVF();
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VPValue *Steps = Builder.createScalarIVSteps(
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Instruction::Add, nullptr, CanonicalIVPHI, Inc, VF, DebugLoc());
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VPValue *Inc2 = Plan.getOrAddLiveIn(ConstantInt::get(I64Ty, 2));
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VPValue *Steps2 = Builder.createScalarIVSteps(
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Instruction::Add, nullptr, CanonicalIVPHI, Inc2, VF, DebugLoc());
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using namespace VPlanPatternMatch;
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ASSERT_TRUE(match(Steps, m_ScalarIVSteps(m_Specific(CanonicalIVPHI),
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m_SpecificInt(1), m_Specific(VF))));
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ASSERT_FALSE(
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match(Steps2, m_ScalarIVSteps(m_Specific(CanonicalIVPHI),
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m_SpecificInt(1), m_Specific(VF))));
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ASSERT_TRUE(match(Steps2, m_ScalarIVSteps(m_Specific(CanonicalIVPHI),
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m_SpecificInt(2), m_Specific(VF))));
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}
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TEST_F(VPPatternMatchTest, GetElementPtr) {
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VPlan &Plan = getPlan();
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VPBasicBlock *VPBB = Plan.createVPBasicBlock("entry");
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VPBuilder Builder(VPBB);
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IntegerType *I64Ty = IntegerType::get(C, 64);
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VPValue *One = Plan.getOrAddLiveIn(ConstantInt::get(I64Ty, 1));
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VPValue *Two = Plan.getOrAddLiveIn(ConstantInt::get(I64Ty, 2));
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VPValue *Ptr =
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Plan.getOrAddLiveIn(Constant::getNullValue(PointerType::get(C, 0)));
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VPInstruction *PtrAdd = Builder.createPtrAdd(Ptr, One);
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VPInstruction *WidePtrAdd = Builder.createWidePtrAdd(Ptr, Two);
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using namespace VPlanPatternMatch;
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ASSERT_TRUE(
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match(PtrAdd, m_GetElementPtr(m_Specific(Ptr), m_SpecificInt(1))));
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ASSERT_FALSE(
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match(PtrAdd, m_GetElementPtr(m_Specific(Ptr), m_SpecificInt(2))));
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ASSERT_TRUE(
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match(WidePtrAdd, m_GetElementPtr(m_Specific(Ptr), m_SpecificInt(2))));
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ASSERT_FALSE(
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match(WidePtrAdd, m_GetElementPtr(m_Specific(Ptr), m_SpecificInt(1))));
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}
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} // namespace
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} // namespace llvm
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