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llvm-project/llvm/unittests/Transforms/Vectorize/VPlanSlpTest.cpp

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//===- llvm/unittest/Transforms/Vectorize/VPlanSlpTest.cpp ---------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "../lib/Transforms/Vectorize/VPlan.h"
#include "../lib/Transforms/Vectorize/VPlanHCFGBuilder.h"
#include "VPlanTestBase.h"
#include "llvm/Analysis/VectorUtils.h"
#include "gtest/gtest.h"
namespace llvm {
namespace {
class VPlanSlpTest : public VPlanTestBase {
protected:
TargetLibraryInfoImpl TLII;
TargetLibraryInfo TLI;
DataLayout DL;
std::unique_ptr<AssumptionCache> AC;
std::unique_ptr<ScalarEvolution> SE;
std::unique_ptr<AAResults> AARes;
std::unique_ptr<BasicAAResult> BasicAA;
std::unique_ptr<LoopAccessInfo> LAI;
std::unique_ptr<PredicatedScalarEvolution> PSE;
std::unique_ptr<InterleavedAccessInfo> IAI;
VPlanSlpTest()
: TLII(), TLI(TLII),
DL("e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-"
"f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:"
"16:32:64-S128") {}
VPInterleavedAccessInfo getInterleavedAccessInfo(Function &F, Loop *L,
VPlan &Plan) {
AC.reset(new AssumptionCache(F));
SE.reset(new ScalarEvolution(F, TLI, *AC, *DT, *LI));
BasicAA.reset(new BasicAAResult(DL, F, TLI, *AC, &*DT, &*LI));
AARes.reset(new AAResults(TLI));
AARes->addAAResult(*BasicAA);
PSE.reset(new PredicatedScalarEvolution(*SE, *L));
LAI.reset(new LoopAccessInfo(L, &*SE, &TLI, &*AARes, &*DT, &*LI));
IAI.reset(new InterleavedAccessInfo(*PSE, L, &*DT, &*LI, &*LAI));
IAI->analyzeInterleaving(false);
return {Plan, *IAI};
}
};
TEST_F(VPlanSlpTest, testSlpSimple_2) {
const char *ModuleString =
"%struct.Test = type { i32, i32 }\n"
"%struct.Test3 = type { i32, i32, i32 }\n"
"%struct.Test4xi8 = type { i8, i8, i8 }\n"
"define void @add_x2(%struct.Test* nocapture readonly %A, %struct.Test* "
"nocapture readonly %B, %struct.Test* nocapture %C) {\n"
"entry:\n"
" br label %for.body\n"
"for.body: ; preds = %for.body, "
"%entry\n"
" %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]\n"
" %A0 = getelementptr inbounds %struct.Test, %struct.Test* %A, i64 "
"%indvars.iv, i32 0\n"
" %vA0 = load i32, i32* %A0, align 4\n"
" %B0 = getelementptr inbounds %struct.Test, %struct.Test* %B, i64 "
"%indvars.iv, i32 0\n"
" %vB0 = load i32, i32* %B0, align 4\n"
" %add0 = add nsw i32 %vA0, %vB0\n"
" %A1 = getelementptr inbounds %struct.Test, %struct.Test* %A, i64 "
"%indvars.iv, i32 1\n"
" %vA1 = load i32, i32* %A1, align 4\n"
" %B1 = getelementptr inbounds %struct.Test, %struct.Test* %B, i64 "
"%indvars.iv, i32 1\n"
" %vB1 = load i32, i32* %B1, align 4\n"
" %add1 = add nsw i32 %vA1, %vB1\n"
" %C0 = getelementptr inbounds %struct.Test, %struct.Test* %C, i64 "
"%indvars.iv, i32 0\n"
" store i32 %add0, i32* %C0, align 4\n"
" %C1 = getelementptr inbounds %struct.Test, %struct.Test* %C, i64 "
"%indvars.iv, i32 1\n"
" store i32 %add1, i32* %C1, align 4\n"
" %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1\n"
" %exitcond = icmp eq i64 %indvars.iv.next, 1024\n"
" br i1 %exitcond, label %for.cond.cleanup, label %for.body\n"
"for.cond.cleanup: ; preds = %for.body\n"
" ret void\n"
"}\n";
Module &M = parseModule(ModuleString);
Function *F = M.getFunction("add_x2");
BasicBlock *LoopHeader = F->getEntryBlock().getSingleSuccessor();
auto Plan = buildHCFG(LoopHeader);
auto VPIAI = getInterleavedAccessInfo(*F, LI->getLoopFor(LoopHeader), *Plan);
VPBlockBase *Entry = Plan->getEntry()->getEntryBasicBlock();
EXPECT_NE(nullptr, Entry->getSingleSuccessor());
VPBasicBlock *Body = Entry->getSingleSuccessor()->getEntryBasicBlock();
VPInstruction *Store1 = cast<VPInstruction>(&*std::next(Body->begin(), 12));
VPInstruction *Store2 = cast<VPInstruction>(&*std::next(Body->begin(), 14));
VPlanSlp Slp(VPIAI, *Body);
SmallVector<VPValue *, 4> StoreRoot = {Store1, Store2};
VPInstruction *CombinedStore = Slp.buildGraph(StoreRoot);
EXPECT_EQ(64u, Slp.getWidestBundleBits());
EXPECT_EQ(VPInstruction::SLPStore, CombinedStore->getOpcode());
auto *CombinedAdd = cast<VPInstruction>(CombinedStore->getOperand(0));
EXPECT_EQ(Instruction::Add, CombinedAdd->getOpcode());
auto *CombinedLoadA = cast<VPInstruction>(CombinedAdd->getOperand(0));
auto *CombinedLoadB = cast<VPInstruction>(CombinedAdd->getOperand(1));
EXPECT_EQ(VPInstruction::SLPLoad, CombinedLoadA->getOpcode());
EXPECT_EQ(VPInstruction::SLPLoad, CombinedLoadB->getOpcode());
}
TEST_F(VPlanSlpTest, testSlpSimple_3) {
const char *ModuleString =
"%struct.Test = type { i32, i32 }\n"
"%struct.Test3 = type { i32, i32, i32 }\n"
"%struct.Test4xi8 = type { i8, i8, i8 }\n"
"define void @add_x2(%struct.Test* nocapture readonly %A, %struct.Test* "
"nocapture readonly %B, %struct.Test* nocapture %C) {\n"
"entry:\n"
" br label %for.body\n"
"for.body: ; preds = %for.body, "
"%entry\n"
" %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]\n"
" %A0 = getelementptr %struct.Test, %struct.Test* %A, i64 "
" %indvars.iv, i32 0\n"
" %vA0 = load i32, i32* %A0, align 4\n"
" %B0 = getelementptr inbounds %struct.Test, %struct.Test* %B, i64 "
" %indvars.iv, i32 0\n"
" %vB0 = load i32, i32* %B0, align 4\n"
" %add0 = add nsw i32 %vA0, %vB0\n"
" %A1 = getelementptr inbounds %struct.Test, %struct.Test* %A, i64 "
" %indvars.iv, i32 1\n"
" %vA1 = load i32, i32* %A1, align 4\n"
" %B1 = getelementptr inbounds %struct.Test, %struct.Test* %B, i64 "
" %indvars.iv, i32 1\n"
" %vB1 = load i32, i32* %B1, align 4\n"
" %add1 = add nsw i32 %vA1, %vB1\n"
" %C0 = getelementptr inbounds %struct.Test, %struct.Test* %C, i64 "
" %indvars.iv, i32 0\n"
" store i32 %add0, i32* %C0, align 4\n"
" %C1 = getelementptr inbounds %struct.Test, %struct.Test* %C, i64 "
" %indvars.iv, i32 1\n"
" store i32 %add1, i32* %C1, align 4\n"
" %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1\n"
" %exitcond = icmp eq i64 %indvars.iv.next, 1024\n"
" br i1 %exitcond, label %for.cond.cleanup, label %for.body\n"
"for.cond.cleanup: ; preds = %for.body\n"
" ret void\n"
"}\n";
Module &M = parseModule(ModuleString);
Function *F = M.getFunction("add_x2");
BasicBlock *LoopHeader = F->getEntryBlock().getSingleSuccessor();
auto Plan = buildHCFG(LoopHeader);
VPBlockBase *Entry = Plan->getEntry()->getEntryBasicBlock();
EXPECT_NE(nullptr, Entry->getSingleSuccessor());
VPBasicBlock *Body = Entry->getSingleSuccessor()->getEntryBasicBlock();
VPInstruction *Store1 = cast<VPInstruction>(&*std::next(Body->begin(), 12));
VPInstruction *Store2 = cast<VPInstruction>(&*std::next(Body->begin(), 14));
auto VPIAI = getInterleavedAccessInfo(*F, LI->getLoopFor(LoopHeader), *Plan);
VPlanSlp Slp(VPIAI, *Body);
SmallVector<VPValue *, 4> StoreRoot = {Store1, Store2};
VPInstruction *CombinedStore = Slp.buildGraph(StoreRoot);
EXPECT_EQ(64u, Slp.getWidestBundleBits());
EXPECT_EQ(VPInstruction::SLPStore, CombinedStore->getOpcode());
auto *CombinedAdd = cast<VPInstruction>(CombinedStore->getOperand(0));
EXPECT_EQ(Instruction::Add, CombinedAdd->getOpcode());
auto *CombinedLoadA = cast<VPInstruction>(CombinedAdd->getOperand(0));
auto *CombinedLoadB = cast<VPInstruction>(CombinedAdd->getOperand(1));
EXPECT_EQ(VPInstruction::SLPLoad, CombinedLoadA->getOpcode());
EXPECT_EQ(VPInstruction::SLPLoad, CombinedLoadB->getOpcode());
VPInstruction *GetA = cast<VPInstruction>(&*std::next(Body->begin(), 1));
VPInstruction *GetB = cast<VPInstruction>(&*std::next(Body->begin(), 3));
EXPECT_EQ(GetA, CombinedLoadA->getOperand(0));
EXPECT_EQ(GetB, CombinedLoadB->getOperand(0));
}
TEST_F(VPlanSlpTest, testSlpReuse_1) {
const char *ModuleString =
"%struct.Test = type { i32, i32 }\n"
"define void @add_x2(%struct.Test* nocapture readonly %A, %struct.Test* "
"nocapture readonly %B, %struct.Test* nocapture %C) {\n"
"entry:\n"
" br label %for.body\n"
"for.body: ; preds = %for.body, "
"%entry\n"
" %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]\n"
" %A0 = getelementptr inbounds %struct.Test, %struct.Test* %A, i64 "
"%indvars.iv, i32 0\n"
" %vA0 = load i32, i32* %A0, align 4\n"
" %add0 = add nsw i32 %vA0, %vA0\n"
" %A1 = getelementptr inbounds %struct.Test, %struct.Test* %A, i64 "
"%indvars.iv, i32 1\n"
" %vA1 = load i32, i32* %A1, align 4\n"
" %add1 = add nsw i32 %vA1, %vA1\n"
" %C0 = getelementptr inbounds %struct.Test, %struct.Test* %C, i64 "
"%indvars.iv, i32 0\n"
" store i32 %add0, i32* %C0, align 4\n"
" %C1 = getelementptr inbounds %struct.Test, %struct.Test* %C, i64 "
"%indvars.iv, i32 1\n"
" store i32 %add1, i32* %C1, align 4\n"
" %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1\n"
" %exitcond = icmp eq i64 %indvars.iv.next, 1024\n"
" br i1 %exitcond, label %for.cond.cleanup, label %for.body\n"
"for.cond.cleanup: ; preds = %for.body\n"
" ret void\n"
"}\n";
Module &M = parseModule(ModuleString);
Function *F = M.getFunction("add_x2");
BasicBlock *LoopHeader = F->getEntryBlock().getSingleSuccessor();
auto Plan = buildHCFG(LoopHeader);
auto VPIAI = getInterleavedAccessInfo(*F, LI->getLoopFor(LoopHeader), *Plan);
VPBlockBase *Entry = Plan->getEntry()->getEntryBasicBlock();
EXPECT_NE(nullptr, Entry->getSingleSuccessor());
VPBasicBlock *Body = Entry->getSingleSuccessor()->getEntryBasicBlock();
VPInstruction *Store1 = cast<VPInstruction>(&*std::next(Body->begin(), 8));
VPInstruction *Store2 = cast<VPInstruction>(&*std::next(Body->begin(), 10));
VPlanSlp Slp(VPIAI, *Body);
SmallVector<VPValue *, 4> StoreRoot = {Store1, Store2};
VPInstruction *CombinedStore = Slp.buildGraph(StoreRoot);
EXPECT_EQ(64u, Slp.getWidestBundleBits());
EXPECT_EQ(VPInstruction::SLPStore, CombinedStore->getOpcode());
auto *CombinedAdd = cast<VPInstruction>(CombinedStore->getOperand(0));
EXPECT_EQ(Instruction::Add, CombinedAdd->getOpcode());
auto *CombinedLoadA = cast<VPInstruction>(CombinedAdd->getOperand(0));
EXPECT_EQ(CombinedLoadA, CombinedAdd->getOperand(1));
EXPECT_EQ(VPInstruction::SLPLoad, CombinedLoadA->getOpcode());
}
TEST_F(VPlanSlpTest, testSlpReuse_2) {
const char *ModuleString =
"%struct.Test = type { i32, i32 }\n"
"define i32 @add_x2(%struct.Test* nocapture readonly %A, %struct.Test* "
"nocapture readonly %B, %struct.Test* nocapture %C) {\n"
"entry:\n"
" br label %for.body\n"
"for.body: ; preds = %for.body, "
"%entry\n"
" %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]\n"
" %A0 = getelementptr inbounds %struct.Test, %struct.Test* %A, i64 "
"%indvars.iv, i32 0\n"
" %vA0 = load i32, i32* %A0, align 4\n"
" %add0 = add nsw i32 %vA0, %vA0\n"
" %C0 = getelementptr inbounds %struct.Test, %struct.Test* %C, i64 "
"%indvars.iv, i32 0\n"
" store i32 %add0, i32* %C0, align 4\n"
" %A1 = getelementptr inbounds %struct.Test, %struct.Test* %A, i64 "
"%indvars.iv, i32 1\n"
" %vA1 = load i32, i32* %A1, align 4\n"
" %add1 = add nsw i32 %vA1, %vA1\n"
" %C1 = getelementptr inbounds %struct.Test, %struct.Test* %C, i64 "
"%indvars.iv, i32 1\n"
" store i32 %add1, i32* %C1, align 4\n"
" %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1\n"
" %exitcond = icmp eq i64 %indvars.iv.next, 1024\n"
" br i1 %exitcond, label %for.cond.cleanup, label %for.body\n"
"for.cond.cleanup: ; preds = %for.body\n"
" ret i32 %vA1\n"
"}\n";
Module &M = parseModule(ModuleString);
Function *F = M.getFunction("add_x2");
BasicBlock *LoopHeader = F->getEntryBlock().getSingleSuccessor();
auto Plan = buildHCFG(LoopHeader);
auto VPIAI = getInterleavedAccessInfo(*F, LI->getLoopFor(LoopHeader), *Plan);
VPBlockBase *Entry = Plan->getEntry()->getEntryBasicBlock();
EXPECT_NE(nullptr, Entry->getSingleSuccessor());
VPBasicBlock *Body = Entry->getSingleSuccessor()->getEntryBasicBlock();
VPInstruction *Store1 = cast<VPInstruction>(&*std::next(Body->begin(), 5));
VPInstruction *Store2 = cast<VPInstruction>(&*std::next(Body->begin(), 10));
VPlanSlp Slp(VPIAI, *Body);
SmallVector<VPValue *, 4> StoreRoot = {Store1, Store2};
Slp.buildGraph(StoreRoot);
EXPECT_FALSE(Slp.isCompletelySLP());
}
static void checkReorderExample(VPInstruction *Store1, VPInstruction *Store2,
VPBasicBlock *Body,
VPInterleavedAccessInfo &&IAI) {
VPlanSlp Slp(IAI, *Body);
SmallVector<VPValue *, 4> StoreRoot = {Store1, Store2};
VPInstruction *CombinedStore = Slp.buildGraph(StoreRoot);
EXPECT_TRUE(Slp.isCompletelySLP());
EXPECT_EQ(CombinedStore->getOpcode(), VPInstruction::SLPStore);
VPInstruction *CombinedAdd =
cast<VPInstruction>(CombinedStore->getOperand(0));
EXPECT_EQ(CombinedAdd->getOpcode(), Instruction::Add);
VPInstruction *CombinedMulAB =
cast<VPInstruction>(CombinedAdd->getOperand(0));
VPInstruction *CombinedMulCD =
cast<VPInstruction>(CombinedAdd->getOperand(1));
EXPECT_EQ(CombinedMulAB->getOpcode(), Instruction::Mul);
VPInstruction *CombinedLoadA =
cast<VPInstruction>(CombinedMulAB->getOperand(0));
EXPECT_EQ(VPInstruction::SLPLoad, CombinedLoadA->getOpcode());
VPInstruction *LoadvA0 = cast<VPInstruction>(&*std::next(Body->begin(), 2));
VPInstruction *LoadvA1 = cast<VPInstruction>(&*std::next(Body->begin(), 12));
EXPECT_EQ(LoadvA0->getOperand(0), CombinedLoadA->getOperand(0));
EXPECT_EQ(LoadvA1->getOperand(0), CombinedLoadA->getOperand(1));
VPInstruction *CombinedLoadB =
cast<VPInstruction>(CombinedMulAB->getOperand(1));
EXPECT_EQ(VPInstruction::SLPLoad, CombinedLoadB->getOpcode());
VPInstruction *LoadvB0 = cast<VPInstruction>(&*std::next(Body->begin(), 4));
VPInstruction *LoadvB1 = cast<VPInstruction>(&*std::next(Body->begin(), 14));
EXPECT_EQ(LoadvB0->getOperand(0), CombinedLoadB->getOperand(0));
EXPECT_EQ(LoadvB1->getOperand(0), CombinedLoadB->getOperand(1));
EXPECT_EQ(CombinedMulCD->getOpcode(), Instruction::Mul);
VPInstruction *CombinedLoadC =
cast<VPInstruction>(CombinedMulCD->getOperand(0));
EXPECT_EQ(VPInstruction::SLPLoad, CombinedLoadC->getOpcode());
VPInstruction *LoadvC0 = cast<VPInstruction>(&*std::next(Body->begin(), 7));
VPInstruction *LoadvC1 = cast<VPInstruction>(&*std::next(Body->begin(), 17));
EXPECT_EQ(LoadvC0->getOperand(0), CombinedLoadC->getOperand(0));
EXPECT_EQ(LoadvC1->getOperand(0), CombinedLoadC->getOperand(1));
VPInstruction *CombinedLoadD =
cast<VPInstruction>(CombinedMulCD->getOperand(1));
EXPECT_EQ(VPInstruction::SLPLoad, CombinedLoadD->getOpcode());
VPInstruction *LoadvD0 = cast<VPInstruction>(&*std::next(Body->begin(), 9));
VPInstruction *LoadvD1 = cast<VPInstruction>(&*std::next(Body->begin(), 19));
EXPECT_EQ(LoadvD0->getOperand(0), CombinedLoadD->getOperand(0));
EXPECT_EQ(LoadvD1->getOperand(0), CombinedLoadD->getOperand(1));
}
TEST_F(VPlanSlpTest, testSlpReorder_1) {
LLVMContext Ctx;
const char *ModuleString =
"%struct.Test = type { i32, i32 }\n"
"define void @add_x3(%struct.Test* %A, %struct.Test* %B, %struct.Test* "
"%C, %struct.Test* %D, %struct.Test* %E) {\n"
"entry:\n"
" br label %for.body\n"
"for.body: ; preds = %for.body, "
"%entry\n"
" %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]\n"
" %A0 = getelementptr inbounds %struct.Test, %struct.Test* %A, i64 "
"%indvars.iv, i32 0\n"
" %vA0 = load i32, i32* %A0, align 4\n"
" %B0 = getelementptr inbounds %struct.Test, %struct.Test* %B, i64 "
"%indvars.iv, i32 0\n"
" %vB0 = load i32, i32* %B0, align 4\n"
" %mul11 = mul nsw i32 %vA0, %vB0\n"
" %C0 = getelementptr inbounds %struct.Test, %struct.Test* %C, i64 "
"%indvars.iv, i32 0\n"
" %vC0 = load i32, i32* %C0, align 4\n"
" %D0 = getelementptr inbounds %struct.Test, %struct.Test* %D, i64 "
"%indvars.iv, i32 0\n"
" %vD0 = load i32, i32* %D0, align 4\n"
" %mul12 = mul nsw i32 %vC0, %vD0\n"
" %A1 = getelementptr inbounds %struct.Test, %struct.Test* %A, i64 "
"%indvars.iv, i32 1\n"
" %vA1 = load i32, i32* %A1, align 4\n"
" %B1 = getelementptr inbounds %struct.Test, %struct.Test* %B, i64 "
"%indvars.iv, i32 1\n"
" %vB1 = load i32, i32* %B1, align 4\n"
" %mul21 = mul nsw i32 %vA1, %vB1\n"
" %C1 = getelementptr inbounds %struct.Test, %struct.Test* %C, i64 "
"%indvars.iv, i32 1\n"
" %vC1 = load i32, i32* %C1, align 4\n"
" %D1 = getelementptr inbounds %struct.Test, %struct.Test* %D, i64 "
"%indvars.iv, i32 1\n"
" %vD1 = load i32, i32* %D1, align 4\n"
" %mul22 = mul nsw i32 %vC1, %vD1\n"
" %add1 = add nsw i32 %mul11, %mul12\n"
" %add2 = add nsw i32 %mul22, %mul21\n"
" %E0 = getelementptr inbounds %struct.Test, %struct.Test* %E, i64 "
"%indvars.iv, i32 0\n"
" store i32 %add1, i32* %E0, align 4\n"
" %E1 = getelementptr inbounds %struct.Test, %struct.Test* %E, i64 "
"%indvars.iv, i32 1\n"
" store i32 %add2, i32* %E1, align 4\n"
" %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1\n"
" %exitcond = icmp eq i64 %indvars.iv.next, 1024\n"
" br i1 %exitcond, label %for.cond.cleanup, label %for.body\n"
"for.cond.cleanup: ; preds = %for.body\n"
" ret void\n"
"}\n";
Module &M = parseModule(ModuleString);
Function *F = M.getFunction("add_x3");
BasicBlock *LoopHeader = F->getEntryBlock().getSingleSuccessor();
auto Plan = buildHCFG(LoopHeader);
VPBlockBase *Entry = Plan->getEntry()->getEntryBasicBlock();
EXPECT_NE(nullptr, Entry->getSingleSuccessor());
VPBasicBlock *Body = Entry->getSingleSuccessor()->getEntryBasicBlock();
VPInstruction *Store1 = cast<VPInstruction>(&*std::next(Body->begin(), 24));
VPInstruction *Store2 = cast<VPInstruction>(&*std::next(Body->begin(), 26));
checkReorderExample(
Store1, Store2, Body,
getInterleavedAccessInfo(*F, LI->getLoopFor(LoopHeader), *Plan));
}
TEST_F(VPlanSlpTest, testSlpReorder_2) {
LLVMContext Ctx;
const char *ModuleString =
"%struct.Test = type { i32, i32 }\n"
"define void @add_x3(%struct.Test* %A, %struct.Test* %B, %struct.Test* "
"%C, %struct.Test* %D, %struct.Test* %E) {\n"
"entry:\n"
" br label %for.body\n"
"for.body: ; preds = %for.body, "
"%entry\n"
" %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]\n"
" %A0 = getelementptr inbounds %struct.Test, %struct.Test* %A, i64 "
"%indvars.iv, i32 0\n"
" %vA0 = load i32, i32* %A0, align 4\n"
" %B0 = getelementptr inbounds %struct.Test, %struct.Test* %B, i64 "
"%indvars.iv, i32 0\n"
" %vB0 = load i32, i32* %B0, align 4\n"
" %mul11 = mul nsw i32 %vA0, %vB0\n"
" %C0 = getelementptr inbounds %struct.Test, %struct.Test* %C, i64 "
"%indvars.iv, i32 0\n"
" %vC0 = load i32, i32* %C0, align 4\n"
" %D0 = getelementptr inbounds %struct.Test, %struct.Test* %D, i64 "
"%indvars.iv, i32 0\n"
" %vD0 = load i32, i32* %D0, align 4\n"
" %mul12 = mul nsw i32 %vC0, %vD0\n"
" %A1 = getelementptr inbounds %struct.Test, %struct.Test* %A, i64 "
"%indvars.iv, i32 1\n"
" %vA1 = load i32, i32* %A1, align 4\n"
" %B1 = getelementptr inbounds %struct.Test, %struct.Test* %B, i64 "
"%indvars.iv, i32 1\n"
" %vB1 = load i32, i32* %B1, align 4\n"
" %mul21 = mul nsw i32 %vB1, %vA1\n"
" %C1 = getelementptr inbounds %struct.Test, %struct.Test* %C, i64 "
"%indvars.iv, i32 1\n"
" %vC1 = load i32, i32* %C1, align 4\n"
" %D1 = getelementptr inbounds %struct.Test, %struct.Test* %D, i64 "
"%indvars.iv, i32 1\n"
" %vD1 = load i32, i32* %D1, align 4\n"
" %mul22 = mul nsw i32 %vD1, %vC1\n"
" %add1 = add nsw i32 %mul11, %mul12\n"
" %add2 = add nsw i32 %mul22, %mul21\n"
" %E0 = getelementptr inbounds %struct.Test, %struct.Test* %E, i64 "
"%indvars.iv, i32 0\n"
" store i32 %add1, i32* %E0, align 4\n"
" %E1 = getelementptr inbounds %struct.Test, %struct.Test* %E, i64 "
"%indvars.iv, i32 1\n"
" store i32 %add2, i32* %E1, align 4\n"
" %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1\n"
" %exitcond = icmp eq i64 %indvars.iv.next, 1024\n"
" br i1 %exitcond, label %for.cond.cleanup, label %for.body\n"
"for.cond.cleanup: ; preds = %for.body\n"
" ret void\n"
"}\n";
Module &M = parseModule(ModuleString);
Function *F = M.getFunction("add_x3");
BasicBlock *LoopHeader = F->getEntryBlock().getSingleSuccessor();
auto Plan = buildHCFG(LoopHeader);
VPBlockBase *Entry = Plan->getEntry()->getEntryBasicBlock();
EXPECT_NE(nullptr, Entry->getSingleSuccessor());
VPBasicBlock *Body = Entry->getSingleSuccessor()->getEntryBasicBlock();
VPInstruction *Store1 = cast<VPInstruction>(&*std::next(Body->begin(), 24));
VPInstruction *Store2 = cast<VPInstruction>(&*std::next(Body->begin(), 26));
checkReorderExample(
Store1, Store2, Body,
getInterleavedAccessInfo(*F, LI->getLoopFor(LoopHeader), *Plan));
}
TEST_F(VPlanSlpTest, testSlpReorder_3) {
LLVMContext Ctx;
const char *ModuleString =
"%struct.Test = type { i32, i32 }\n"
"define void @add_x3(%struct.Test* %A, %struct.Test* %B, %struct.Test* "
"%C, %struct.Test* %D, %struct.Test* %E) {\n"
"entry:\n"
" br label %for.body\n"
"for.body: ; preds = %for.body, "
"%entry\n"
" %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]\n"
" %A1 = getelementptr inbounds %struct.Test, %struct.Test* %A, i64 "
"%indvars.iv, i32 1\n"
" %vA1 = load i32, i32* %A1, align 4\n"
" %B0 = getelementptr inbounds %struct.Test, %struct.Test* %B, i64 "
"%indvars.iv, i32 0\n"
" %vB0 = load i32, i32* %B0, align 4\n"
" %mul11 = mul nsw i32 %vA1, %vB0\n"
" %C0 = getelementptr inbounds %struct.Test, %struct.Test* %C, i64 "
"%indvars.iv, i32 0\n"
" %vC0 = load i32, i32* %C0, align 4\n"
" %D0 = getelementptr inbounds %struct.Test, %struct.Test* %D, i64 "
"%indvars.iv, i32 0\n"
" %vD0 = load i32, i32* %D0, align 4\n"
" %mul12 = mul nsw i32 %vC0, %vD0\n"
" %A0 = getelementptr inbounds %struct.Test, %struct.Test* %A, i64 "
"%indvars.iv, i32 0\n"
" %vA0 = load i32, i32* %A0, align 4\n"
" %B1 = getelementptr inbounds %struct.Test, %struct.Test* %B, i64 "
"%indvars.iv, i32 1\n"
" %vB1 = load i32, i32* %B1, align 4\n"
" %mul21 = mul nsw i32 %vB1, %vA0\n"
" %C1 = getelementptr inbounds %struct.Test, %struct.Test* %C, i64 "
"%indvars.iv, i32 1\n"
" %vC1 = load i32, i32* %C1, align 4\n"
" %D1 = getelementptr inbounds %struct.Test, %struct.Test* %D, i64 "
"%indvars.iv, i32 1\n"
" %vD1 = load i32, i32* %D1, align 4\n"
" %mul22 = mul nsw i32 %vD1, %vC1\n"
" %add1 = add nsw i32 %mul11, %mul12\n"
" %add2 = add nsw i32 %mul22, %mul21\n"
" %E0 = getelementptr inbounds %struct.Test, %struct.Test* %E, i64 "
"%indvars.iv, i32 0\n"
" store i32 %add1, i32* %E0, align 4\n"
" %E1 = getelementptr inbounds %struct.Test, %struct.Test* %E, i64 "
"%indvars.iv, i32 1\n"
" store i32 %add2, i32* %E1, align 4\n"
" %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1\n"
" %exitcond = icmp eq i64 %indvars.iv.next, 1024\n"
" br i1 %exitcond, label %for.cond.cleanup, label %for.body\n"
"for.cond.cleanup: ; preds = %for.body\n"
" ret void\n"
"}\n";
Module &M = parseModule(ModuleString);
Function *F = M.getFunction("add_x3");
BasicBlock *LoopHeader = F->getEntryBlock().getSingleSuccessor();
auto Plan = buildHCFG(LoopHeader);
VPBlockBase *Entry = Plan->getEntry()->getEntryBasicBlock();
EXPECT_NE(nullptr, Entry->getSingleSuccessor());
VPBasicBlock *Body = Entry->getSingleSuccessor()->getEntryBasicBlock();
VPInstruction *Store1 = cast<VPInstruction>(&*std::next(Body->begin(), 24));
VPInstruction *Store2 = cast<VPInstruction>(&*std::next(Body->begin(), 26));
auto VPIAI = getInterleavedAccessInfo(*F, LI->getLoopFor(LoopHeader), *Plan);
VPlanSlp Slp(VPIAI, *Body);
SmallVector<VPValue *, 4> StoreRoot = {Store1, Store2};
EXPECT_EQ(nullptr, Slp.buildGraph(StoreRoot));
// FIXME Need to select better first value for lane0.
EXPECT_FALSE(Slp.isCompletelySLP());
}
TEST_F(VPlanSlpTest, testSlpReorder_4) {
LLVMContext Ctx;
const char *ModuleString =
"%struct.Test = type { i32, i32 }\n"
"define void @add_x3(%struct.Test* %A, %struct.Test* %B, %struct.Test* "
"%C, %struct.Test* %D, %struct.Test* %E) {\n"
"entry:\n"
" br label %for.body\n"
"for.body: ; preds = %for.body, "
"%entry\n"
" %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]\n"
" %A0 = getelementptr inbounds %struct.Test, %struct.Test* %A, i64 "
"%indvars.iv, i32 0\n"
" %vA0 = load i32, i32* %A0, align 4\n"
" %B0 = getelementptr inbounds %struct.Test, %struct.Test* %B, i64 "
"%indvars.iv, i32 0\n"
" %vB0 = load i32, i32* %B0, align 4\n"
" %mul11 = mul nsw i32 %vA0, %vB0\n"
" %C0 = getelementptr inbounds %struct.Test, %struct.Test* %C, i64 "
"%indvars.iv, i32 0\n"
" %vC0 = load i32, i32* %C0, align 4\n"
" %D0 = getelementptr inbounds %struct.Test, %struct.Test* %D, i64 "
"%indvars.iv, i32 0\n"
" %vD0 = load i32, i32* %D0, align 4\n"
" %mul12 = mul nsw i32 %vC0, %vD0\n"
" %A1 = getelementptr inbounds %struct.Test, %struct.Test* %A, i64 "
"%indvars.iv, i32 1\n"
" %vA1 = load i32, i32* %A1, align 4\n"
" %B1 = getelementptr inbounds %struct.Test, %struct.Test* %B, i64 "
"%indvars.iv, i32 1\n"
" %vB1 = load i32, i32* %B1, align 4\n"
" %mul21 = mul nsw i32 %vA1, %vB1\n"
" %C1 = getelementptr inbounds %struct.Test, %struct.Test* %C, i64 "
"%indvars.iv, i32 1\n"
" %vC1 = load i32, i32* %C1, align 4\n"
" %D1 = getelementptr inbounds %struct.Test, %struct.Test* %D, i64 "
"%indvars.iv, i32 1\n"
" %vD1 = load i32, i32* %D1, align 4\n"
" %mul22 = mul nsw i32 %vC1, %vD1\n"
" %add1 = add nsw i32 %mul11, %mul12\n"
" %add2 = add nsw i32 %mul22, %mul21\n"
" %E0 = getelementptr inbounds %struct.Test, %struct.Test* %E, i64 "
"%indvars.iv, i32 0\n"
" store i32 %add1, i32* %E0, align 4\n"
" %E1 = getelementptr inbounds %struct.Test, %struct.Test* %E, i64 "
"%indvars.iv, i32 1\n"
" store i32 %add2, i32* %E1, align 4\n"
" %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1\n"
" %exitcond = icmp eq i64 %indvars.iv.next, 1024\n"
" br i1 %exitcond, label %for.cond.cleanup, label %for.body\n"
"for.cond.cleanup: ; preds = %for.body\n"
" ret void\n"
"}\n";
Module &M = parseModule(ModuleString);
Function *F = M.getFunction("add_x3");
BasicBlock *LoopHeader = F->getEntryBlock().getSingleSuccessor();
auto Plan = buildHCFG(LoopHeader);
VPBlockBase *Entry = Plan->getEntry()->getEntryBasicBlock();
EXPECT_NE(nullptr, Entry->getSingleSuccessor());
VPBasicBlock *Body = Entry->getSingleSuccessor()->getEntryBasicBlock();
VPInstruction *Store1 = cast<VPInstruction>(&*std::next(Body->begin(), 24));
VPInstruction *Store2 = cast<VPInstruction>(&*std::next(Body->begin(), 26));
checkReorderExample(
Store1, Store2, Body,
getInterleavedAccessInfo(*F, LI->getLoopFor(LoopHeader), *Plan));
}
// Make sure we do not combine instructions with operands in different BBs.
TEST_F(VPlanSlpTest, testInstrsInDifferentBBs) {
const char *ModuleString =
"%struct.Test = type { i32, i32 }\n"
"%struct.Test3 = type { i32, i32, i32 }\n"
"%struct.Test4xi8 = type { i8, i8, i8 }\n"
"define void @add_x2(%struct.Test* nocapture readonly %A, %struct.Test* "
"nocapture readonly %B, %struct.Test* nocapture %C) {\n"
"entry:\n"
" br label %for.body\n"
"for.body: ; preds = %for.body, "
"%entry\n"
" %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]\n"
" %A0 = getelementptr inbounds %struct.Test, %struct.Test* %A, i64 "
"%indvars.iv, i32 0\n"
" %vA0 = load i32, i32* %A0, align 4\n"
" %B0 = getelementptr inbounds %struct.Test, %struct.Test* %B, i64 "
"%indvars.iv, i32 0\n"
" %vB0 = load i32, i32* %B0, align 4\n"
" %add0 = add nsw i32 %vA0, %vB0\n"
" %A1 = getelementptr inbounds %struct.Test, %struct.Test* %A, i64 "
"%indvars.iv, i32 1\n"
" %vA1 = load i32, i32* %A1, align 4\n"
" %B1 = getelementptr inbounds %struct.Test, %struct.Test* %B, i64 "
"%indvars.iv, i32 1\n"
" br label %bb2\n"
"bb2:\n"
" %vB1 = load i32, i32* %B1, align 4\n"
" %add1 = add nsw i32 %vA1, %vB1\n"
" %C0 = getelementptr inbounds %struct.Test, %struct.Test* %C, i64 "
"%indvars.iv, i32 0\n"
" store i32 %add0, i32* %C0, align 4\n"
" %C1 = getelementptr inbounds %struct.Test, %struct.Test* %C, i64 "
"%indvars.iv, i32 1\n"
" store i32 %add1, i32* %C1, align 4\n"
" %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1\n"
" %exitcond = icmp eq i64 %indvars.iv.next, 1024\n"
" br i1 %exitcond, label %for.cond.cleanup, label %for.body\n"
"for.cond.cleanup: ; preds = %for.body\n"
" ret void\n"
"}\n";
Module &M = parseModule(ModuleString);
Function *F = M.getFunction("add_x2");
BasicBlock *LoopHeader = F->getEntryBlock().getSingleSuccessor();
auto Plan = buildHCFG(LoopHeader);
auto VPIAI = getInterleavedAccessInfo(*F, LI->getLoopFor(LoopHeader), *Plan);
VPBlockBase *Entry = Plan->getEntry()->getEntryBasicBlock();
EXPECT_NE(nullptr, Entry->getSingleSuccessor());
VPBasicBlock *Body = Entry->getSingleSuccessor()->getEntryBasicBlock();
VPBasicBlock *BB2 = Body->getSingleSuccessor()->getEntryBasicBlock();
VPInstruction *Store1 = cast<VPInstruction>(&*std::next(BB2->begin(), 3));
VPInstruction *Store2 = cast<VPInstruction>(&*std::next(BB2->begin(), 5));
VPlanSlp Slp(VPIAI, *BB2);
SmallVector<VPValue *, 4> StoreRoot = {Store1, Store2};
EXPECT_EQ(nullptr, Slp.buildGraph(StoreRoot));
EXPECT_EQ(0u, Slp.getWidestBundleBits());
}
// Make sure we do not combine instructions with operands in different BBs.
TEST_F(VPlanSlpTest, testInstrsInDifferentBBs2) {
const char *ModuleString =
"%struct.Test = type { i32, i32 }\n"
"%struct.Test3 = type { i32, i32, i32 }\n"
"%struct.Test4xi8 = type { i8, i8, i8 }\n"
"define void @add_x2(%struct.Test* nocapture readonly %A, %struct.Test* "
"nocapture readonly %B, %struct.Test* nocapture %C) {\n"
"entry:\n"
" br label %for.body\n"
"for.body: ; preds = %for.body, "
"%entry\n"
" %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]\n"
" %A0 = getelementptr inbounds %struct.Test, %struct.Test* %A, i64 "
"%indvars.iv, i32 0\n"
" %vA0 = load i32, i32* %A0, align 4\n"
" %B0 = getelementptr inbounds %struct.Test, %struct.Test* %B, i64 "
"%indvars.iv, i32 0\n"
" %vB0 = load i32, i32* %B0, align 4\n"
" %add0 = add nsw i32 %vA0, %vB0\n"
" %A1 = getelementptr inbounds %struct.Test, %struct.Test* %A, i64 "
"%indvars.iv, i32 1\n"
" %vA1 = load i32, i32* %A1, align 4\n"
" %B1 = getelementptr inbounds %struct.Test, %struct.Test* %B, i64 "
"%indvars.iv, i32 1\n"
" %vB1 = load i32, i32* %B1, align 4\n"
" %add1 = add nsw i32 %vA1, %vB1\n"
" br label %bb2\n"
"bb2:\n"
" %C0 = getelementptr inbounds %struct.Test, %struct.Test* %C, i64 "
"%indvars.iv, i32 0\n"
" store i32 %add0, i32* %C0, align 4\n"
" %C1 = getelementptr inbounds %struct.Test, %struct.Test* %C, i64 "
"%indvars.iv, i32 1\n"
" store i32 %add1, i32* %C1, align 4\n"
" %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1\n"
" %exitcond = icmp eq i64 %indvars.iv.next, 1024\n"
" br i1 %exitcond, label %for.cond.cleanup, label %for.body\n"
"for.cond.cleanup: ; preds = %for.body\n"
" ret void\n"
"}\n";
Module &M = parseModule(ModuleString);
Function *F = M.getFunction("add_x2");
BasicBlock *LoopHeader = F->getEntryBlock().getSingleSuccessor();
auto Plan = buildHCFG(LoopHeader);
auto VPIAI = getInterleavedAccessInfo(*F, LI->getLoopFor(LoopHeader), *Plan);
VPBlockBase *Entry = Plan->getEntry()->getEntryBasicBlock();
EXPECT_NE(nullptr, Entry->getSingleSuccessor());
VPBasicBlock *Body = Entry->getSingleSuccessor()->getEntryBasicBlock();
VPBasicBlock *BB2 = Body->getSingleSuccessor()->getEntryBasicBlock();
VPInstruction *Store1 = cast<VPInstruction>(&*std::next(BB2->begin(), 1));
VPInstruction *Store2 = cast<VPInstruction>(&*std::next(BB2->begin(), 3));
VPlanSlp Slp(VPIAI, *BB2);
SmallVector<VPValue *, 4> StoreRoot = {Store1, Store2};
EXPECT_EQ(nullptr, Slp.buildGraph(StoreRoot));
EXPECT_EQ(0u, Slp.getWidestBundleBits());
}
TEST_F(VPlanSlpTest, testSlpAtomicLoad) {
const char *ModuleString =
"%struct.Test = type { i32, i32 }\n"
"%struct.Test3 = type { i32, i32, i32 }\n"
"%struct.Test4xi8 = type { i8, i8, i8 }\n"
"define void @add_x2(%struct.Test* nocapture readonly %A, %struct.Test* "
"nocapture readonly %B, %struct.Test* nocapture %C) {\n"
"entry:\n"
" br label %for.body\n"
"for.body: ; preds = %for.body, "
"%entry\n"
" %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]\n"
" %A0 = getelementptr inbounds %struct.Test, %struct.Test* %A, i64 "
"%indvars.iv, i32 0\n"
" %vA0 = load atomic i32, i32* %A0 monotonic, align 4\n"
" %B0 = getelementptr inbounds %struct.Test, %struct.Test* %B, i64 "
"%indvars.iv, i32 0\n"
" %vB0 = load i32, i32* %B0, align 4\n"
" %add0 = add nsw i32 %vA0, %vB0\n"
" %A1 = getelementptr inbounds %struct.Test, %struct.Test* %A, i64 "
"%indvars.iv, i32 1\n"
" %vA1 = load i32, i32* %A1, align 4\n"
" %B1 = getelementptr inbounds %struct.Test, %struct.Test* %B, i64 "
"%indvars.iv, i32 1\n"
" %vB1 = load i32, i32* %B1, align 4\n"
" %add1 = add nsw i32 %vA1, %vB1\n"
" %C0 = getelementptr inbounds %struct.Test, %struct.Test* %C, i64 "
"%indvars.iv, i32 0\n"
" store i32 %add0, i32* %C0, align 4\n"
" %C1 = getelementptr inbounds %struct.Test, %struct.Test* %C, i64 "
"%indvars.iv, i32 1\n"
" store i32 %add1, i32* %C1, align 4\n"
" %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1\n"
" %exitcond = icmp eq i64 %indvars.iv.next, 1024\n"
" br i1 %exitcond, label %for.cond.cleanup, label %for.body\n"
"for.cond.cleanup: ; preds = %for.body\n"
" ret void\n"
"}\n";
Module &M = parseModule(ModuleString);
Function *F = M.getFunction("add_x2");
BasicBlock *LoopHeader = F->getEntryBlock().getSingleSuccessor();
auto Plan = buildHCFG(LoopHeader);
auto VPIAI = getInterleavedAccessInfo(*F, LI->getLoopFor(LoopHeader), *Plan);
VPBlockBase *Entry = Plan->getEntry()->getEntryBasicBlock();
EXPECT_NE(nullptr, Entry->getSingleSuccessor());
VPBasicBlock *Body = Entry->getSingleSuccessor()->getEntryBasicBlock();
VPInstruction *Store1 = cast<VPInstruction>(&*std::next(Body->begin(), 12));
VPInstruction *Store2 = cast<VPInstruction>(&*std::next(Body->begin(), 14));
VPlanSlp Slp(VPIAI, *Body);
SmallVector<VPValue *, 4> StoreRoot = {Store1, Store2};
EXPECT_EQ(nullptr, Slp.buildGraph(StoreRoot));
EXPECT_FALSE(Slp.isCompletelySLP());
}
TEST_F(VPlanSlpTest, testSlpAtomicStore) {
const char *ModuleString =
"%struct.Test = type { i32, i32 }\n"
"%struct.Test3 = type { i32, i32, i32 }\n"
"%struct.Test4xi8 = type { i8, i8, i8 }\n"
"define void @add_x2(%struct.Test* nocapture readonly %A, %struct.Test* "
"nocapture readonly %B, %struct.Test* nocapture %C) {\n"
"entry:\n"
" br label %for.body\n"
"for.body: ; preds = %for.body, "
"%entry\n"
" %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]\n"
" %A0 = getelementptr inbounds %struct.Test, %struct.Test* %A, i64 "
"%indvars.iv, i32 0\n"
" %vA0 = load i32, i32* %A0, align 4\n"
" %B0 = getelementptr inbounds %struct.Test, %struct.Test* %B, i64 "
"%indvars.iv, i32 0\n"
" %vB0 = load i32, i32* %B0, align 4\n"
" %add0 = add nsw i32 %vA0, %vB0\n"
" %A1 = getelementptr inbounds %struct.Test, %struct.Test* %A, i64 "
"%indvars.iv, i32 1\n"
" %vA1 = load i32, i32* %A1, align 4\n"
" %B1 = getelementptr inbounds %struct.Test, %struct.Test* %B, i64 "
"%indvars.iv, i32 1\n"
" %vB1 = load i32, i32* %B1, align 4\n"
" %add1 = add nsw i32 %vA1, %vB1\n"
" %C0 = getelementptr inbounds %struct.Test, %struct.Test* %C, i64 "
"%indvars.iv, i32 0\n"
" store atomic i32 %add0, i32* %C0 monotonic, align 4\n"
" %C1 = getelementptr inbounds %struct.Test, %struct.Test* %C, i64 "
"%indvars.iv, i32 1\n"
" store i32 %add1, i32* %C1, align 4\n"
" %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1\n"
" %exitcond = icmp eq i64 %indvars.iv.next, 1024\n"
" br i1 %exitcond, label %for.cond.cleanup, label %for.body\n"
"for.cond.cleanup: ; preds = %for.body\n"
" ret void\n"
"}\n";
Module &M = parseModule(ModuleString);
Function *F = M.getFunction("add_x2");
BasicBlock *LoopHeader = F->getEntryBlock().getSingleSuccessor();
auto Plan = buildHCFG(LoopHeader);
auto VPIAI = getInterleavedAccessInfo(*F, LI->getLoopFor(LoopHeader), *Plan);
VPBlockBase *Entry = Plan->getEntry()->getEntryBasicBlock();
EXPECT_NE(nullptr, Entry->getSingleSuccessor());
VPBasicBlock *Body = Entry->getSingleSuccessor()->getEntryBasicBlock();
VPInstruction *Store1 = cast<VPInstruction>(&*std::next(Body->begin(), 12));
VPInstruction *Store2 = cast<VPInstruction>(&*std::next(Body->begin(), 14));
VPlanSlp Slp(VPIAI, *Body);
SmallVector<VPValue *, 4> StoreRoot = {Store1, Store2};
Slp.buildGraph(StoreRoot);
EXPECT_FALSE(Slp.isCompletelySLP());
}
} // namespace
} // namespace llvm
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