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[SLP]Change the insertion point for outside-block-used nodes and prevec phi operand gathers #139917

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Merged
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May 16, 2025
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[SLP]Change the insertion point for outside-block-used nodes and prevec phi operand gathers #139917

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4eedce5
[𝘀𝗽𝗿] initial version
alexey-bataev May 14, 2025
12f4ee0
Fix
alexey-bataev May 14, 2025
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56 changes: 41 additions & 15 deletions llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
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Expand Up @@ -16128,16 +16128,10 @@ Instruction &BoUpSLP::getLastInstructionInBundle(const TreeEntry *E) {
[](Value *V) {
return !isa<GetElementPtrInst>(V) && isa<Instruction>(V);
})) ||
all_of(E->Scalars,
[](Value *V) {
return isa<PoisonValue>(V) ||
(!isVectorLikeInstWithConstOps(V) &&
isUsedOutsideBlock(V));
}) ||
(E->isGather() && E->Idx == 0 && all_of(E->Scalars, [](Value *V) {
return isa<ExtractElementInst, UndefValue>(V) ||
areAllOperandsNonInsts(V);
})))
all_of(E->Scalars, [](Value *V) {
return isa<PoisonValue>(V) ||
(!isVectorLikeInstWithConstOps(V) && isUsedOutsideBlock(V));
}))
Res = FindLastInst();
else
Res = FindFirstInst();
Expand Down Expand Up @@ -16193,7 +16187,7 @@ void BoUpSLP::setInsertPointAfterBundle(const TreeEntry *E) {
}
if (IsPHI ||
(!E->isGather() && E->State != TreeEntry::SplitVectorize &&
doesNotNeedToSchedule(E->Scalars)) ||
all_of(E->Scalars, areAllOperandsNonInsts)) ||
(GatheredLoadsEntriesFirst.has_value() &&
E->Idx >= *GatheredLoadsEntriesFirst && !E->isGather() &&
E->getOpcode() == Instruction::Load)) {
Expand Down Expand Up @@ -17782,17 +17776,27 @@ Value *BoUpSLP::vectorizeTree(TreeEntry *E) {
Value *VecOp = NewPhi->getIncomingValueForBlock(IBB);
NewPhi->addIncoming(VecOp, IBB);
TreeEntry *OpTE = getOperandEntry(E, I);
assert(!OpTE->VectorizedValue && "Expected no vectorized value.");
OpTE->VectorizedValue = VecOp;
continue;
}

Builder.SetInsertPoint(IBB->getTerminator());
Builder.SetCurrentDebugLocation(PH->getDebugLoc());
Value *Vec = vectorizeOperand(E, I);
const TreeEntry *OpE = getOperandEntry(E, I);
Value *Vec;
if (OpE->isGather()) {
assert(OpE->VectorizedValue && "Expected vectorized value.");
Vec = OpE->VectorizedValue;
if (auto *IVec = dyn_cast<Instruction>(Vec))
Builder.SetInsertPoint(IVec->getNextNonDebugInstruction());
} else {
Vec = vectorizeOperand(E, I);
}
if (VecTy != Vec->getType()) {
assert((It != MinBWs.end() || getOperandEntry(E, I)->isGather() ||
MinBWs.contains(getOperandEntry(E, I))) &&
"Expected item in MinBWs.");
assert(
(It != MinBWs.end() || OpE->isGather() || MinBWs.contains(OpE)) &&
"Expected item in MinBWs.");
Vec = Builder.CreateIntCast(Vec, VecTy, GetOperandSignedness(I));
}
NewPhi->addIncoming(Vec, IBB);
Expand Down Expand Up @@ -18678,6 +18682,28 @@ Value *BoUpSLP::vectorizeTree(
else
Builder.SetInsertPoint(&F->getEntryBlock(), F->getEntryBlock().begin());

// Vectorize gather operands of the PHI nodes.
for (const std::unique_ptr<TreeEntry> &TE : reverse(VectorizableTree)) {
if (TE->isGather() && TE->UserTreeIndex.UserTE &&
TE->UserTreeIndex.UserTE->hasState() &&
!TE->UserTreeIndex.UserTE->isAltShuffle() &&
TE->UserTreeIndex.UserTE->State == TreeEntry::Vectorize &&
TE->UserTreeIndex.UserTE->getOpcode() == Instruction::PHI &&
!TE->VectorizedValue) {
auto *PH = cast<PHINode>(TE->UserTreeIndex.UserTE->getMainOp());
BasicBlock *IBB = PH->getIncomingBlock(TE->UserTreeIndex.EdgeIdx);
// If there is the same incoming block earlier - skip, it will be handled
// in PHI node.
if (TE->UserTreeIndex.EdgeIdx > 0 &&
any_of(seq<unsigned>(TE->UserTreeIndex.EdgeIdx), [&](unsigned Idx) {
return PH->getIncomingBlock(Idx) == IBB;
}))
continue;
Builder.SetInsertPoint(IBB->getTerminator());
Builder.SetCurrentDebugLocation(PH->getDebugLoc());
(void)vectorizeTree(TE.get());
}
}
// Emit gathered loads first to emit better code for the users of those
// gathered loads.
for (const std::unique_ptr<TreeEntry> &TE : VectorizableTree) {
Expand Down
10 changes: 5 additions & 5 deletions llvm/test/Transforms/SLPVectorizer/AArch64/reused-scalar-repeated-in-node.ll
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Expand Up @@ -37,19 +37,19 @@ define void @test() {
; CHECK-NEXT: [[TMP11:%.*]] = insertelement <16 x float> [[TMP10]], float [[I69]], i32 15
; CHECK-NEXT: br i1 poison, label %[[BB167:.*]], label %[[BB77:.*]]
; CHECK: [[BB77]]:
; CHECK-NEXT: [[TMP12:%.*]] = shufflevector <16 x float> [[TMP11]], <16 x float> poison, <8 x i32> <i32 poison, i32 poison, i32 poison, i32 poison, i32 14, i32 15, i32 poison, i32 poison>
; CHECK-NEXT: [[TMP17:%.*]] = insertelement <8 x float> poison, float [[I70]], i32 0
; CHECK-NEXT: [[TMP23:%.*]] = shufflevector <8 x float> [[TMP12]], <8 x float> [[TMP17]], <8 x i32> <i32 8, i32 poison, i32 poison, i32 poison, i32 4, i32 5, i32 poison, i32 poison>
; CHECK-NEXT: [[TMP14:%.*]] = insertelement <8 x float> poison, float [[I70]], i32 1
; CHECK-NEXT: [[TMP19:%.*]] = insertelement <8 x float> [[TMP14]], float [[I68]], i32 2
; CHECK-NEXT: [[TMP16:%.*]] = insertelement <8 x float> [[TMP19]], float [[I66]], i32 3
; CHECK-NEXT: [[TMP20:%.*]] = insertelement <8 x float> [[TMP16]], float [[I67]], i32 6
; CHECK-NEXT: [[TMP21:%.*]] = insertelement <8 x float> [[TMP20]], float [[I69]], i32 7
; CHECK-NEXT: [[TMP17:%.*]] = shufflevector <16 x float> [[TMP11]], <16 x float> poison, <8 x i32> <i32 poison, i32 poison, i32 poison, i32 poison, i32 14, i32 15, i32 poison, i32 poison>
; CHECK-NEXT: [[TMP23:%.*]] = insertelement <8 x float> poison, float [[I70]], i32 0
; CHECK-NEXT: [[TMP30:%.*]] = shufflevector <8 x float> [[TMP17]], <8 x float> [[TMP23]], <8 x i32> <i32 8, i32 poison, i32 poison, i32 poison, i32 4, i32 5, i32 poison, i32 poison>
; CHECK-NEXT: [[TMP39:%.*]] = shufflevector <16 x float> [[TMP25]], <16 x float> poison, <16 x i32> <i32 poison, i32 poison, i32 3, i32 2, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison>
; CHECK-NEXT: [[TMP13:%.*]] = shufflevector <16 x float> [[TMP39]], <16 x float> [[TMP25]], <16 x i32> <i32 poison, i32 poison, i32 2, i32 3, i32 18, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 19, i32 poison, i32 poison>
; CHECK-NEXT: br label %[[BB78:.*]]
; CHECK: [[BB78]]:
; CHECK-NEXT: [[TMP15:%.*]] = phi <8 x float> [ [[TMP23]], %[[BB77]] ], [ [[TMP36:%.*]], %[[BB78]] ]
; CHECK-NEXT: [[TMP15:%.*]] = phi <8 x float> [ [[TMP30]], %[[BB77]] ], [ [[TMP36:%.*]], %[[BB78]] ]
; CHECK-NEXT: [[TMP22:%.*]] = phi <8 x float> [ [[TMP21]], %[[BB77]] ], [ [[TMP31:%.*]], %[[BB78]] ]
; CHECK-NEXT: [[TMP24:%.*]] = shufflevector <8 x float> [[TMP22]], <8 x float> poison, <16 x i32> <i32 0, i32 3, i32 1, i32 2, i32 3, i32 0, i32 2, i32 3, i32 2, i32 6, i32 2, i32 3, i32 0, i32 7, i32 6, i32 6>
; CHECK-NEXT: [[TMP38:%.*]] = shufflevector <8 x float> [[TMP15]], <8 x float> poison, <16 x i32> <i32 0, i32 1, i32 2, i32 3, i32 1, i32 0, i32 3, i32 1, i32 3, i32 5, i32 3, i32 1, i32 0, i32 4, i32 5, i32 5>
Expand All @@ -58,8 +58,8 @@ define void @test() {
; CHECK-NEXT: [[TMP27:%.*]] = fadd fast <16 x float> [[TMP26]], [[TMP18]]
; CHECK-NEXT: [[TMP28:%.*]] = fadd fast <16 x float> [[TMP27]], poison
; CHECK-NEXT: [[TMP29:%.*]] = fadd fast <16 x float> [[TMP28]], poison
; CHECK-NEXT: [[TMP36]] = shufflevector <16 x float> [[TMP29]], <16 x float> poison, <8 x i32> <i32 5, i32 11, i32 12, i32 10, i32 14, i32 15, i32 poison, i32 poison>
; CHECK-NEXT: [[TMP31]] = shufflevector <16 x float> [[TMP29]], <16 x float> poison, <8 x i32> <i32 12, i32 5, i32 6, i32 7, i32 poison, i32 poison, i32 14, i32 15>
; CHECK-NEXT: [[TMP36]] = shufflevector <16 x float> [[TMP29]], <16 x float> poison, <8 x i32> <i32 5, i32 11, i32 12, i32 10, i32 14, i32 15, i32 poison, i32 poison>
; CHECK-NEXT: br i1 poison, label %[[BB78]], label %[[BB167]]
; CHECK: [[BB167]]:
; CHECK-NEXT: [[TMP32:%.*]] = phi <16 x float> [ [[TMP11]], %[[BB64]] ], [ [[TMP29]], %[[BB78]] ]
Expand Down
4 changes: 2 additions & 2 deletions llvm/test/Transforms/SLPVectorizer/X86/buildvectors-parent-phi-nodes.ll
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Expand Up @@ -5,14 +5,14 @@ define void @test(ptr %0, float %1) {
; CHECK-LABEL: define void @test(
; CHECK-SAME: ptr [[TMP0:%.*]], float [[TMP1:%.*]]) #[[ATTR0:[0-9]+]] {
; CHECK-NEXT: [[TMP3:%.*]] = load float, ptr [[TMP0]], align 4
; CHECK-NEXT: [[TMP4:%.*]] = insertelement <2 x float> <float 0.000000e+00, float poison>, float [[TMP3]], i32 1
; CHECK-NEXT: [[TMP5:%.*]] = insertelement <4 x float> <float poison, float 0.000000e+00, float 0.000000e+00, float 0.000000e+00>, float [[TMP3]], i32 0
; CHECK-NEXT: [[TMP8:%.*]] = insertelement <2 x float> <float 0.000000e+00, float poison>, float [[TMP3]], i32 1
; CHECK-NEXT: [[TMP6:%.*]] = insertelement <2 x float> poison, float [[TMP1]], i32 0
; CHECK-NEXT: [[TMP7:%.*]] = shufflevector <2 x float> [[TMP6]], <2 x float> poison, <2 x i32> zeroinitializer
; CHECK-NEXT: br label %[[BB8:.*]]
; CHECK: [[BB8]]:
; CHECK-NEXT: [[TMP9:%.*]] = phi <4 x float> [ [[TMP15:%.*]], %[[BB8]] ], [ [[TMP5]], [[TMP2:%.*]] ]
; CHECK-NEXT: [[TMP10:%.*]] = phi <2 x float> [ [[TMP7]], %[[BB8]] ], [ [[TMP4]], [[TMP2]] ]
; CHECK-NEXT: [[TMP10:%.*]] = phi <2 x float> [ [[TMP7]], %[[BB8]] ], [ [[TMP8]], [[TMP2]] ]
; CHECK-NEXT: [[TMP11:%.*]] = shufflevector <2 x float> [[TMP10]], <2 x float> poison, <4 x i32> <i32 0, i32 1, i32 0, i32 0>
; CHECK-NEXT: [[TMP12:%.*]] = fmul <4 x float> [[TMP9]], zeroinitializer
; CHECK-NEXT: [[TMP13:%.*]] = fadd <4 x float> [[TMP12]], zeroinitializer
Expand Down
2 changes: 1 addition & 1 deletion llvm/test/Transforms/SLPVectorizer/X86/full-matched-bv-with-subvectors.ll
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Expand Up @@ -6,9 +6,9 @@ define i32 @test(i64 %l.549) {
; CHECK-SAME: i64 [[L_549:%.*]]) {
; CHECK-NEXT: [[ENTRY:.*]]:
; CHECK-NEXT: [[CONV3:%.*]] = sext i32 0 to i64
; CHECK-NEXT: [[TMP0:%.*]] = insertelement <4 x i64> poison, i64 [[CONV3]], i32 3
; CHECK-NEXT: [[TMP3:%.*]] = insertelement <2 x i64> poison, i64 0, i32 0
; CHECK-NEXT: [[TMP2:%.*]] = insertelement <2 x i64> [[TMP3]], i64 0, i32 1
; CHECK-NEXT: [[TMP0:%.*]] = insertelement <4 x i64> poison, i64 [[CONV3]], i32 3
; CHECK-NEXT: [[TMP8:%.*]] = insertelement <4 x i64> poison, i64 [[L_549]], i32 0
; CHECK-NEXT: [[TMP9:%.*]] = shufflevector <4 x i64> [[TMP8]], <4 x i64> poison, <4 x i32> <i32 poison, i32 0, i32 poison, i32 poison>
; CHECK-NEXT: br label %[[IF_THEN19:.*]]
Expand Down
4 changes: 2 additions & 2 deletions llvm/test/Transforms/SLPVectorizer/X86/matched-bv-schedulable.ll
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Expand Up @@ -7,11 +7,11 @@ define void @test() {
; CHECK-NEXT: br i1 false, label %[[BB1:.*]], label %[[BB5:.*]]
; CHECK: [[BB1]]:
; CHECK-NEXT: [[TMP0:%.*]] = phi <2 x i32> [ [[TMP3:%.*]], %[[BB1]] ], [ zeroinitializer, %[[BB]] ]
; CHECK-NEXT: [[TMP4:%.*]] = insertelement <2 x i32> <i32 poison, i32 0>, i32 0, i32 0
; CHECK-NEXT: [[TMP5:%.*]] = or <2 x i32> [[TMP0]], [[TMP4]]
; CHECK-NEXT: [[TMP1:%.*]] = shufflevector <2 x i32> [[TMP0]], <2 x i32> <i32 poison, i32 0>, <2 x i32> <i32 0, i32 3>
; CHECK-NEXT: [[TMP2:%.*]] = insertelement <2 x i32> <i32 poison, i32 1>, i32 0, i32 0
; CHECK-NEXT: [[TMP3]] = or <2 x i32> [[TMP1]], [[TMP2]]
; CHECK-NEXT: [[TMP4:%.*]] = insertelement <2 x i32> <i32 poison, i32 0>, i32 0, i32 0
; CHECK-NEXT: [[TMP5:%.*]] = or <2 x i32> [[TMP0]], [[TMP4]]
; CHECK-NEXT: [[TMP6:%.*]] = extractelement <2 x i32> [[TMP5]], i32 1
; CHECK-NEXT: [[OR3:%.*]] = or i32 [[TMP6]], 0
; CHECK-NEXT: br i1 false, label %[[BB1]], label %[[BB5]]
Expand Down
8 changes: 4 additions & 4 deletions llvm/test/Transforms/SLPVectorizer/X86/matched-nodes-updated.ll
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Expand Up @@ -37,18 +37,18 @@ define i32 @test(i32 %s.0) {
; CHECK: [[IF_THEN18:.*]]:
; CHECK-NEXT: br label %[[T]]
; CHECK: [[T]]:
; CHECK-NEXT: [[TMP30:%.*]] = phi <8 x i32> [ [[TMP27:%.*]], %[[O]] ], [ poison, %[[IF_THEN18]] ]
; CHECK-NEXT: [[TMP19:%.*]] = phi <8 x i32> [ [[TMP27:%.*]], %[[O]] ], [ poison, %[[IF_THEN18]] ]
; CHECK-NEXT: [[TMP17]] = extractelement <4 x i32> [[TMP23:%.*]], i32 0
; CHECK-NEXT: br i1 false, label %[[IF_END24]], label %[[K]]
; CHECK: [[IF_END24]]:
; CHECK-NEXT: [[TMP18:%.*]] = phi <8 x i32> [ [[TMP29]], %[[IF_THEN11]] ], [ [[TMP11]], %[[IF_END6]] ], [ [[TMP30]], %[[T]] ]
; CHECK-NEXT: [[TMP19:%.*]] = shufflevector <8 x i32> [[TMP18]], <8 x i32> poison, <2 x i32> <i32 7, i32 1>
; CHECK-NEXT: [[TMP18:%.*]] = phi <8 x i32> [ [[TMP29]], %[[IF_THEN11]] ], [ [[TMP11]], %[[IF_END6]] ], [ [[TMP19]], %[[T]] ]
; CHECK-NEXT: [[TMP20:%.*]] = shufflevector <8 x i32> [[TMP18]], <8 x i32> poison, <4 x i32> <i32 0, i32 5, i32 6, i32 7>
; CHECK-NEXT: [[TMP30:%.*]] = shufflevector <8 x i32> [[TMP18]], <8 x i32> poison, <2 x i32> <i32 7, i32 1>
; CHECK-NEXT: [[TMP21:%.*]] = shufflevector <8 x i32> [[TMP18]], <8 x i32> poison, <4 x i32> <i32 2, i32 3, i32 4, i32 6>
; CHECK-NEXT: br label %[[O]]
; CHECK: [[O]]:
; CHECK-NEXT: [[TMP22]] = phi <2 x i32> [ zeroinitializer, %[[K]] ], [ [[TMP19]], %[[IF_END24]] ]
; CHECK-NEXT: [[TMP23]] = phi <4 x i32> [ [[TMP1]], %[[K]] ], [ [[TMP20]], %[[IF_END24]] ]
; CHECK-NEXT: [[TMP22]] = phi <2 x i32> [ zeroinitializer, %[[K]] ], [ [[TMP30]], %[[IF_END24]] ]
; CHECK-NEXT: [[TMP24:%.*]] = phi <4 x i32> [ zeroinitializer, %[[K]] ], [ [[TMP21]], %[[IF_END24]] ]
; CHECK-NEXT: [[TMP25:%.*]] = shufflevector <4 x i32> [[TMP23]], <4 x i32> poison, <8 x i32> <i32 0, i32 poison, i32 0, i32 0, i32 poison, i32 poison, i32 poison, i32 poison>
; CHECK-NEXT: [[TMP26:%.*]] = shufflevector <8 x i32> [[TMP25]], <8 x i32> <i32 poison, i32 0, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison, i32 poison>, <8 x i32> <i32 0, i32 9, i32 2, i32 3, i32 poison, i32 poison, i32 poison, i32 poison>
Expand Down
40 changes: 40 additions & 0 deletions llvm/test/Transforms/SLPVectorizer/X86/node-outside-used-only.ll
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@@ -0,0 +1,40 @@
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 5
; RUN: opt -S --passes=slp-vectorizer -mtriple=x86_64-unknown-linux-gnu -slp-threshold=-99999 < %s | FileCheck %s

define i64 @test() {
; CHECK-LABEL: define i64 @test() {
; CHECK-NEXT: [[BB:.*]]:
; CHECK-NEXT: [[TMP0:%.*]] = insertelement <2 x i32> <i32 0, i32 poison>, i32 0, i32 1
; CHECK-NEXT: br label %[[BB1:.*]]
; CHECK: [[BB1]]:
; CHECK-NEXT: [[TMP1:%.*]] = phi <2 x i32> [ zeroinitializer, %[[BB]] ], [ [[TMP4:%.*]], %[[BB5:.*]] ]
; CHECK-NEXT: [[TMP2:%.*]] = or <2 x i32> [[TMP0]], [[TMP1]]
; CHECK-NEXT: [[TMP3:%.*]] = shufflevector <2 x i32> [[TMP1]], <2 x i32> [[TMP2]], <2 x i32> <i32 0, i32 3>
; CHECK-NEXT: [[TMP4]] = or <2 x i32> [[TMP3]], zeroinitializer
; CHECK-NEXT: br label %[[BB5]]
; CHECK: [[BB5]]:
; CHECK-NEXT: br i1 false, label %[[BB6:.*]], label %[[BB1]]
; CHECK: [[BB6]]:
; CHECK-NEXT: [[TMP5:%.*]] = phi <2 x i32> [ [[TMP2]], %[[BB5]] ]
; CHECK-NEXT: ret i64 0
;
bb:
br label %bb1

bb1:
%phi = phi i32 [ 0, %bb ], [ %or, %bb5 ]
%phi2 = phi i32 [ 0, %bb ], [ %or4, %bb5 ]
%or = or i32 %phi, 0
%add = add i32 0, 0
%or3 = or i32 %add, %phi2
%or4 = or i32 %or3, 0
br label %bb5

bb5:
br i1 false, label %bb6, label %bb1

bb6:
%phi7 = phi i32 [ %or, %bb5 ]
%phi8 = phi i32 [ %or3, %bb5 ]
ret i64 0
}
2 changes: 1 addition & 1 deletion llvm/test/Transforms/SLPVectorizer/X86/reduced-val-vectorized-in-transform.ll
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Expand Up @@ -16,10 +16,10 @@ define i32 @test(i1 %cond) {
; CHECK-NEXT: [[TMP5:%.*]] = or <4 x i32> zeroinitializer, [[TMP4]]
; CHECK-NEXT: [[OR92]] = or i32 1, 0
; CHECK-NEXT: [[TMP6:%.*]] = call i32 @llvm.vector.reduce.xor.v4i32(<4 x i32> [[TMP5]])
; CHECK-NEXT: [[OP_RDX:%.*]] = xor i32 [[TMP6]], [[OR92]]
; CHECK-NEXT: [[TMP9:%.*]] = insertelement <2 x i32> <i32 poison, i32 1>, i32 [[TMP6]], i32 0
; CHECK-NEXT: [[TMP7:%.*]] = insertelement <2 x i32> <i32 poison, i32 0>, i32 [[OR92]], i32 0
; CHECK-NEXT: [[TMP8]] = xor <2 x i32> [[TMP9]], [[TMP7]]
; CHECK-NEXT: [[OP_RDX:%.*]] = xor i32 [[TMP6]], [[OR92]]
; CHECK-NEXT: br i1 [[COND]], label %[[EXIT:.*]], label %[[BB]]
; CHECK: [[EXIT]]:
; CHECK-NEXT: ret i32 [[OP_RDX]]
Expand Down
2 changes: 1 addition & 1 deletion llvm/test/Transforms/SLPVectorizer/X86/split-node-num-operands.ll
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Expand Up @@ -15,8 +15,8 @@ define i64 @Foo(ptr align 8 dereferenceable(344) %0, i64 %1) {
; CHECK-NEXT: [[TMP11:%.*]] = insertelement <2 x i64> [[TMP10]], i64 [[TMP9]], i32 1
; CHECK-NEXT: [[TMP12:%.*]] = insertelement <2 x i64> poison, i64 [[TMP7]], i32 0
; CHECK-NEXT: [[TMP13:%.*]] = insertelement <2 x i64> [[TMP12]], i64 [[TMP8]], i32 1
; CHECK-NEXT: [[TMP14:%.*]] = insertelement <2 x i64> poison, i64 0, i32 0
; CHECK-NEXT: [[TMP15:%.*]] = insertelement <2 x i64> <i64 0, i64 poison>, i64 [[TMP1]], i32 1
; CHECK-NEXT: [[TMP14:%.*]] = insertelement <2 x i64> poison, i64 0, i32 0
; CHECK-NEXT: br label %[[BB16:.*]]
; CHECK: [[BB16]]:
; CHECK-NEXT: [[TMP17:%.*]] = phi <2 x i64> [ [[TMP11]], [[TMP2:%.*]] ], [ zeroinitializer, %[[TMP25:.*]] ]
Expand Down
4 changes: 2 additions & 2 deletions llvm/test/Transforms/SLPVectorizer/revec.ll
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Expand Up @@ -234,12 +234,12 @@ define void @test7() {
define void @test8() {
; CHECK-LABEL: @test8(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[TMP4:%.*]] = call <4 x float> @llvm.vector.insert.v4f32.v2f32(<4 x float> poison, <2 x float> zeroinitializer, i64 0)
; CHECK-NEXT: [[TMP5:%.*]] = call <4 x float> @llvm.vector.insert.v4f32.v2f32(<4 x float> [[TMP4]], <2 x float> zeroinitializer, i64 2)
; CHECK-NEXT: [[TMP0:%.*]] = call <8 x float> @llvm.vector.insert.v8f32.v2f32(<8 x float> poison, <2 x float> zeroinitializer, i64 0)
; CHECK-NEXT: [[TMP1:%.*]] = call <8 x float> @llvm.vector.insert.v8f32.v2f32(<8 x float> [[TMP0]], <2 x float> zeroinitializer, i64 2)
; CHECK-NEXT: [[TMP2:%.*]] = call <8 x float> @llvm.vector.insert.v8f32.v2f32(<8 x float> [[TMP1]], <2 x float> zeroinitializer, i64 4)
; CHECK-NEXT: [[TMP3:%.*]] = call <8 x float> @llvm.vector.insert.v8f32.v2f32(<8 x float> [[TMP2]], <2 x float> zeroinitializer, i64 6)
; CHECK-NEXT: [[TMP4:%.*]] = call <4 x float> @llvm.vector.insert.v4f32.v2f32(<4 x float> poison, <2 x float> zeroinitializer, i64 0)
; CHECK-NEXT: [[TMP5:%.*]] = call <4 x float> @llvm.vector.insert.v4f32.v2f32(<4 x float> [[TMP4]], <2 x float> zeroinitializer, i64 2)
; CHECK-NEXT: br i1 false, label [[FOR0:%.*]], label [[FOR_BODY:%.*]]
; CHECK: for0:
; CHECK-NEXT: [[TMP6:%.*]] = phi <8 x float> [ [[TMP3]], [[ENTRY:%.*]] ], [ [[TMP8:%.*]], [[FOR_BODY]] ]
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