272812b9b4
Previously `m_CanonicalIV()` matched any `VPRegionValue`, which was only correct because the canonical IV is the sole `VPRegionValue` today. Going ahead this is not scalable and there may be more `VPRegionValue`.
90 lines
3.4 KiB
C++
90 lines
3.4 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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using namespace VPlanPatternMatch;
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TEST_F(VPPatternMatchTest, ScalarIVSteps) {
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VPlan &Plan = getPlan();
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IntegerType *I64Ty = IntegerType::get(C, 64);
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VPRegionBlock *VPR =
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Plan.createLoopRegion(I64Ty, DebugLoc::getCompilerGenerated());
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VPValue *CanIV = VPR->getCanonicalIV();
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VPBasicBlock *VPBB = Plan.createVPBasicBlock("");
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VPBuilder Builder(VPBB);
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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(Instruction::Add, nullptr, CanIV,
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Inc, VF, DebugLoc());
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VPValue *Inc2 = Plan.getOrAddLiveIn(ConstantInt::get(I64Ty, 2));
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VPValue *Steps2 = Builder.createScalarIVSteps(Instruction::Add, nullptr,
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CanIV, Inc2, VF, DebugLoc());
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ASSERT_TRUE(match(Steps, m_ScalarIVSteps(m_Specific(CanIV), m_SpecificInt(1),
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m_Specific(VF))));
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ASSERT_FALSE(
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match(Steps2, m_ScalarIVSteps(m_Specific(CanIV), m_SpecificInt(1),
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m_Specific(VF))));
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ASSERT_TRUE(match(Steps2, m_ScalarIVSteps(m_Specific(CanIV), m_SpecificInt(2),
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m_Specific(VF))));
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}
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TEST_F(VPPatternMatchTest, CanonicalIV) {
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VPlan &Plan = getPlan();
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IntegerType *I64Ty = IntegerType::get(C, 64);
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VPRegionBlock *VPR =
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Plan.createLoopRegion(I64Ty, DebugLoc::getCompilerGenerated());
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VPValue *CanIV = VPR->getCanonicalIV();
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ASSERT_TRUE(match(CanIV, m_CanonicalIV()));
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VPRegionValue OtherRegionValue(I64Ty, DebugLoc::getCompilerGenerated(), VPR);
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ASSERT_FALSE(match(&OtherRegionValue, m_CanonicalIV()));
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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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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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