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[VPlan] Reassociate (x & y) & z -> x & (y & z) #155383

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Merged
merged 8 commits into from
Sep 3, 2025
Merged

[VPlan] Reassociate (x & y) & z -> x & (y & z) #155383

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f9f7969
Reassociate header mask
lukel97 Aug 26, 2025
2cd0bb5
Reassociate all ands
lukel97 Sep 1, 2025
94f7b9f
Restrict to multiple users
lukel97 Sep 1, 2025
28162b8
Undo stray change
lukel97 Sep 1, 2025
f66a940
Update comment
lukel97 Sep 1, 2025
7661966
Fix devastating typo
lukel97 Sep 2, 2025
7d0e1cb
Merge branch 'main' into loop-vectorize/simplify-or-and
lukel97 Sep 2, 2025
6a796d0
Merge branch 'main' into loop-vectorize/simplify-or-and
lukel97 Sep 3, 2025
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9 changes: 9 additions & 0 deletions llvm/lib/Transforms/Vectorize/VPlanTransforms.cpp
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Expand Up @@ -1119,6 +1119,15 @@ static void simplifyRecipe(VPRecipeBase &R, VPTypeAnalysis &TypeInfo) {
return;
}

// Reassociate (x && y) && z -> x && (y && z) if x has multiple users. With
// tail folding it is likely that x is a header mask and can be simplified
// further.
if (match(Def, m_LogicalAnd(m_LogicalAnd(m_VPValue(X), m_VPValue(Y)),
m_VPValue(Z))) &&
X->hasMoreThanOneUniqueUser())
return Def->replaceAllUsesWith(
Builder.createLogicalAnd(X, Builder.createLogicalAnd(Y, Z)));

if (match(Def, m_c_Mul(m_VPValue(A), m_SpecificInt(1))))
return Def->replaceAllUsesWith(A);

Expand Down
7 changes: 4 additions & 3 deletions llvm/test/Transforms/LoopVectorize/AArch64/force-target-instruction-cost.ll
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Expand Up @@ -198,7 +198,9 @@ define void @test_exit_branch_cost(ptr %dst, ptr noalias %x.ptr, ptr noalias %y.
; CHECK-NEXT: [[BROADCAST_SPLAT57:%.*]] = shufflevector <2 x i1> [[BROADCAST_SPLATINSERT56]], <2 x i1> poison, <2 x i32> zeroinitializer
; CHECK-NEXT: [[TMP1:%.*]] = select i1 [[C_4]], <2 x i1> [[BROADCAST_SPLAT41]], <2 x i1> zeroinitializer
; CHECK-NEXT: [[TMP11:%.*]] = xor <2 x i1> [[TMP1]], splat (i1 true)
; CHECK-NEXT: [[TMP2:%.*]] = select <2 x i1> [[BROADCAST_SPLAT41]], <2 x i1> [[BROADCAST_SPLAT57]], <2 x i1> zeroinitializer
; CHECK-NEXT: [[TMP33:%.*]] = xor <2 x i1> [[BROADCAST_SPLAT57]], splat (i1 true)
; CHECK-NEXT: [[TMP6:%.*]] = select <2 x i1> [[BROADCAST_SPLAT41]], <2 x i1> [[TMP33]], <2 x i1> zeroinitializer
; CHECK-NEXT: br label %[[VECTOR_BODY:.*]]
; CHECK: [[VECTOR_BODY]]:
; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[PRED_STORE_CONTINUE55:.*]] ]
Expand Down Expand Up @@ -231,8 +233,7 @@ define void @test_exit_branch_cost(ptr %dst, ptr noalias %x.ptr, ptr noalias %y.
; CHECK-NEXT: store i64 0, ptr [[DST_3]], align 8, !alias.scope [[META15]], !noalias [[META16]]
; CHECK-NEXT: br label %[[PRED_STORE_CONTINUE47]]
; CHECK: [[PRED_STORE_CONTINUE47]]:
; CHECK-NEXT: [[TMP19:%.*]] = select <2 x i1> [[TMP5]], <2 x i1> [[BROADCAST_SPLAT41]], <2 x i1> zeroinitializer
; CHECK-NEXT: [[TMP21:%.*]] = select <2 x i1> [[TMP19]], <2 x i1> [[BROADCAST_SPLAT57]], <2 x i1> zeroinitializer
; CHECK-NEXT: [[TMP21:%.*]] = select <2 x i1> [[TMP5]], <2 x i1> [[TMP2]], <2 x i1> zeroinitializer
; CHECK-NEXT: [[TMP23:%.*]] = or <2 x i1> [[TMP47]], [[TMP21]]
; CHECK-NEXT: [[PREDPHI58:%.*]] = select <2 x i1> [[TMP21]], <2 x i64> zeroinitializer, <2 x i64> splat (i64 1)
; CHECK-NEXT: [[TMP28:%.*]] = extractelement <2 x i1> [[TMP23]], i32 0
Expand All @@ -249,7 +250,7 @@ define void @test_exit_branch_cost(ptr %dst, ptr noalias %x.ptr, ptr noalias %y.
; CHECK-NEXT: store i64 [[TMP31]], ptr [[DST_2]], align 8, !alias.scope [[META17]], !noalias [[META18]]
; CHECK-NEXT: br label %[[PRED_STORE_CONTINUE51]]
; CHECK: [[PRED_STORE_CONTINUE51]]:
; CHECK-NEXT: [[TMP35:%.*]] = select <2 x i1> [[TMP19]], <2 x i1> [[TMP33]], <2 x i1> zeroinitializer
; CHECK-NEXT: [[TMP35:%.*]] = select <2 x i1> [[TMP5]], <2 x i1> [[TMP6]], <2 x i1> zeroinitializer
; CHECK-NEXT: [[TMP37:%.*]] = or <2 x i1> [[TMP23]], [[TMP35]]
; CHECK-NEXT: [[TMP42:%.*]] = extractelement <2 x i1> [[TMP37]], i32 0
; CHECK-NEXT: br i1 [[TMP42]], label %[[PRED_STORE_IF52:.*]], label %[[PRED_STORE_CONTINUE53:.*]]
Expand Down
12 changes: 3 additions & 9 deletions llvm/test/Transforms/LoopVectorize/RISCV/blocks-with-dead-instructions.ll
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Expand Up @@ -436,23 +436,17 @@ define void @multiple_blocks_with_dead_inst_multiple_successors_6(ptr %src, i1 %
; CHECK-NEXT: [[VEC_IND:%.*]] = phi <vscale x 8 x i64> [ [[INDUCTION]], %[[VECTOR_PH]] ], [ [[VEC_IND_NEXT:%.*]], %[[VECTOR_BODY]] ]
; CHECK-NEXT: [[AVL:%.*]] = phi i64 [ [[TMP2]], %[[VECTOR_PH]] ], [ [[AVL_NEXT:%.*]], %[[VECTOR_BODY]] ]
; CHECK-NEXT: [[TMP27:%.*]] = call i32 @llvm.experimental.get.vector.length.i64(i64 [[AVL]], i32 8, i1 true)
; CHECK-NEXT: [[BROADCAST_SPLATINSERT3:%.*]] = insertelement <vscale x 8 x i32> poison, i32 [[TMP27]], i64 0
; CHECK-NEXT: [[BROADCAST_SPLAT4:%.*]] = shufflevector <vscale x 8 x i32> [[BROADCAST_SPLATINSERT3]], <vscale x 8 x i32> poison, <vscale x 8 x i32> zeroinitializer
; CHECK-NEXT: [[TMP12:%.*]] = zext i32 [[TMP27]] to i64
; CHECK-NEXT: [[TMP16:%.*]] = mul i64 3, [[TMP12]]
; CHECK-NEXT: [[DOTSPLATINSERT:%.*]] = insertelement <vscale x 8 x i64> poison, i64 [[TMP16]], i64 0
; CHECK-NEXT: [[DOTSPLAT:%.*]] = shufflevector <vscale x 8 x i64> [[DOTSPLATINSERT]], <vscale x 8 x i64> poison, <vscale x 8 x i32> zeroinitializer
; CHECK-NEXT: [[TMP14:%.*]] = call <vscale x 8 x i32> @llvm.stepvector.nxv8i32()
; CHECK-NEXT: [[TMP15:%.*]] = icmp ult <vscale x 8 x i32> [[TMP14]], [[BROADCAST_SPLAT4]]
; CHECK-NEXT: [[TMP20:%.*]] = getelementptr i16, ptr [[SRC]], <vscale x 8 x i64> [[VEC_IND]]
; CHECK-NEXT: [[WIDE_MASKED_GATHER:%.*]] = call <vscale x 8 x i16> @llvm.vp.gather.nxv8i16.nxv8p0(<vscale x 8 x ptr> align 2 [[TMP20]], <vscale x 8 x i1> splat (i1 true), i32 [[TMP27]])
; CHECK-NEXT: [[TMP17:%.*]] = icmp eq <vscale x 8 x i16> [[WIDE_MASKED_GATHER]], zeroinitializer
; CHECK-NEXT: [[TMP18:%.*]] = select <vscale x 8 x i1> [[TMP15]], <vscale x 8 x i1> [[TMP17]], <vscale x 8 x i1> zeroinitializer
; CHECK-NEXT: [[TMP19:%.*]] = select <vscale x 8 x i1> [[TMP18]], <vscale x 8 x i1> [[TMP8]], <vscale x 8 x i1> zeroinitializer
; CHECK-NEXT: [[TMP14:%.*]] = select <vscale x 8 x i1> [[TMP17]], <vscale x 8 x i1> [[TMP8]], <vscale x 8 x i1> zeroinitializer
; CHECK-NEXT: [[TMP28:%.*]] = xor <vscale x 8 x i1> [[TMP17]], splat (i1 true)
; CHECK-NEXT: [[TMP21:%.*]] = select <vscale x 8 x i1> [[TMP15]], <vscale x 8 x i1> [[TMP28]], <vscale x 8 x i1> zeroinitializer
; CHECK-NEXT: [[TMP22:%.*]] = or <vscale x 8 x i1> [[TMP19]], [[TMP21]]
; CHECK-NEXT: [[TMP23:%.*]] = select <vscale x 8 x i1> [[TMP18]], <vscale x 8 x i1> [[BROADCAST_SPLAT]], <vscale x 8 x i1> zeroinitializer
; CHECK-NEXT: [[TMP22:%.*]] = or <vscale x 8 x i1> [[TMP14]], [[TMP28]]
; CHECK-NEXT: [[TMP23:%.*]] = select <vscale x 8 x i1> [[TMP17]], <vscale x 8 x i1> [[BROADCAST_SPLAT]], <vscale x 8 x i1> zeroinitializer
; CHECK-NEXT: [[TMP24:%.*]] = or <vscale x 8 x i1> [[TMP22]], [[TMP23]]
; CHECK-NEXT: call void @llvm.vp.scatter.nxv8i16.nxv8p0(<vscale x 8 x i16> zeroinitializer, <vscale x 8 x ptr> align 2 [[TMP20]], <vscale x 8 x i1> [[TMP24]], i32 [[TMP27]])
; CHECK-NEXT: [[TMP25:%.*]] = zext i32 [[TMP27]] to i64
Expand Down
11 changes: 5 additions & 6 deletions ...t/Transforms/LoopVectorize/RISCV/pr87378-vpinstruction-or-drop-poison-generating-flags.ll
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Expand Up @@ -34,18 +34,17 @@ define void @pr87378_vpinstruction_or_drop_poison_generating_flags(ptr %arg, i64
; CHECK-NEXT: [[TMP10:%.*]] = call <vscale x 8 x i32> @llvm.stepvector.nxv8i32()
; CHECK-NEXT: [[TMP11:%.*]] = icmp ult <vscale x 8 x i32> [[TMP10]], [[BROADCAST_SPLAT8]]
; CHECK-NEXT: [[TMP13:%.*]] = icmp ule <vscale x 8 x i64> [[VEC_IND]], [[BROADCAST_SPLAT]]
; CHECK-NEXT: [[TMP28:%.*]] = select <vscale x 8 x i1> [[TMP11]], <vscale x 8 x i1> [[TMP13]], <vscale x 8 x i1> zeroinitializer
; CHECK-NEXT: [[TMP14:%.*]] = icmp ule <vscale x 8 x i64> [[VEC_IND]], [[BROADCAST_SPLAT2]]
; CHECK-NEXT: [[TMP15:%.*]] = select <vscale x 8 x i1> [[TMP28]], <vscale x 8 x i1> [[TMP14]], <vscale x 8 x i1> zeroinitializer
; CHECK-NEXT: [[TMP9:%.*]] = select <vscale x 8 x i1> [[TMP13]], <vscale x 8 x i1> [[TMP14]], <vscale x 8 x i1> zeroinitializer
; CHECK-NEXT: [[TMP16:%.*]] = xor <vscale x 8 x i1> [[TMP13]], splat (i1 true)
; CHECK-NEXT: [[TMP29:%.*]] = select <vscale x 8 x i1> [[TMP11]], <vscale x 8 x i1> [[TMP16]], <vscale x 8 x i1> zeroinitializer
; CHECK-NEXT: [[TMP17:%.*]] = or <vscale x 8 x i1> [[TMP15]], [[TMP29]]
; CHECK-NEXT: [[TMP17:%.*]] = or <vscale x 8 x i1> [[TMP9]], [[TMP16]]
; CHECK-NEXT: [[TMP18:%.*]] = icmp ule <vscale x 8 x i64> [[VEC_IND]], [[BROADCAST_SPLAT4]]
; CHECK-NEXT: [[TMP19:%.*]] = select <vscale x 8 x i1> [[TMP17]], <vscale x 8 x i1> [[TMP18]], <vscale x 8 x i1> zeroinitializer
; CHECK-NEXT: [[TMP20:%.*]] = xor <vscale x 8 x i1> [[TMP14]], splat (i1 true)
; CHECK-NEXT: [[TMP21:%.*]] = select <vscale x 8 x i1> [[TMP28]], <vscale x 8 x i1> [[TMP20]], <vscale x 8 x i1> zeroinitializer
; CHECK-NEXT: [[TMP21:%.*]] = select <vscale x 8 x i1> [[TMP13]], <vscale x 8 x i1> [[TMP20]], <vscale x 8 x i1> zeroinitializer
; CHECK-NEXT: [[TMP15:%.*]] = select <vscale x 8 x i1> [[TMP11]], <vscale x 8 x i1> [[TMP21]], <vscale x 8 x i1> zeroinitializer
; CHECK-NEXT: [[TMP22:%.*]] = or <vscale x 8 x i1> [[TMP19]], [[TMP21]]
; CHECK-NEXT: [[TMP23:%.*]] = extractelement <vscale x 8 x i1> [[TMP21]], i32 0
; CHECK-NEXT: [[TMP23:%.*]] = extractelement <vscale x 8 x i1> [[TMP15]], i32 0
; CHECK-NEXT: [[PREDPHI:%.*]] = select i1 [[TMP23]], i64 poison, i64 [[INDEX]]
; CHECK-NEXT: [[TMP24:%.*]] = getelementptr i16, ptr [[ARG]], i64 [[PREDPHI]]
; CHECK-NEXT: call void @llvm.vp.store.nxv8i16.p0(<vscale x 8 x i16> zeroinitializer, ptr align 2 [[TMP24]], <vscale x 8 x i1> [[TMP22]], i32 [[TMP25]])
Expand Down
40 changes: 20 additions & 20 deletions llvm/test/Transforms/LoopVectorize/X86/constant-fold.ll
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Expand Up @@ -65,35 +65,35 @@ define void @redundant_or_1(ptr %dst, i1 %c.0, i1 %c.1) {
; CHECK: vector.ph:
; CHECK-NEXT: [[BROADCAST_SPLATINSERT:%.*]] = insertelement <4 x i1> poison, i1 [[C_0:%.*]], i64 0
; CHECK-NEXT: [[BROADCAST_SPLAT:%.*]] = shufflevector <4 x i1> [[BROADCAST_SPLATINSERT]], <4 x i1> poison, <4 x i32> zeroinitializer
; CHECK-NEXT: [[TMP0:%.*]] = xor <4 x i1> [[BROADCAST_SPLAT]], splat (i1 true)
; CHECK-NEXT: [[BROADCAST_SPLATINSERT1:%.*]] = insertelement <4 x i1> poison, i1 [[C_1:%.*]], i64 0
; CHECK-NEXT: [[BROADCAST_SPLAT2:%.*]] = shufflevector <4 x i1> [[BROADCAST_SPLATINSERT1]], <4 x i1> poison, <4 x i32> zeroinitializer
; CHECK-NEXT: [[TMP1:%.*]] = xor <4 x i1> [[BROADCAST_SPLAT2]], splat (i1 true)
; CHECK-NEXT: [[TMP0:%.*]] = select <4 x i1> [[TMP1]], <4 x i1> [[BROADCAST_SPLAT]], <4 x i1> zeroinitializer
; CHECK-NEXT: br label [[VECTOR_BODY:%.*]]
; CHECK: vector.body:
; CHECK-NEXT: [[TMP2:%.*]] = select <4 x i1> <i1 true, i1 true, i1 true, i1 false>, <4 x i1> [[TMP0]], <4 x i1> zeroinitializer
; CHECK-NEXT: [[TMP5:%.*]] = select <4 x i1> [[TMP2]], <4 x i1> [[BROADCAST_SPLAT2]], <4 x i1> zeroinitializer
; CHECK-NEXT: [[TMP6:%.*]] = extractelement <4 x i1> [[TMP5]], i32 0
; CHECK-NEXT: [[TMP6:%.*]] = extractelement <4 x i1> [[TMP2]], i32 0
; CHECK-NEXT: br i1 [[TMP6]], label [[PRED_STORE_IF:%.*]], label [[PRED_STORE_CONTINUE:%.*]]
; CHECK: pred.store.if:
; CHECK-NEXT: [[TMP8:%.*]] = getelementptr inbounds i32, ptr [[DST:%.*]], i32 0
; CHECK-NEXT: store i32 0, ptr [[TMP8]], align 4
; CHECK-NEXT: br label [[PRED_STORE_CONTINUE]]
; CHECK: pred.store.continue:
; CHECK-NEXT: [[TMP9:%.*]] = extractelement <4 x i1> [[TMP5]], i32 1
; CHECK-NEXT: [[TMP9:%.*]] = extractelement <4 x i1> [[TMP2]], i32 1
; CHECK-NEXT: br i1 [[TMP9]], label [[PRED_STORE_IF3:%.*]], label [[PRED_STORE_CONTINUE4:%.*]]
; CHECK: pred.store.if3:
; CHECK-NEXT: [[TMP11:%.*]] = getelementptr inbounds i32, ptr [[DST]], i32 1
; CHECK-NEXT: store i32 0, ptr [[TMP11]], align 4
; CHECK-NEXT: br label [[PRED_STORE_CONTINUE4]]
; CHECK: pred.store.continue4:
; CHECK-NEXT: [[TMP12:%.*]] = extractelement <4 x i1> [[TMP5]], i32 2
; CHECK-NEXT: [[TMP12:%.*]] = extractelement <4 x i1> [[TMP2]], i32 2
; CHECK-NEXT: br i1 [[TMP12]], label [[PRED_STORE_IF5:%.*]], label [[PRED_STORE_CONTINUE6:%.*]]
; CHECK: pred.store.if5:
; CHECK-NEXT: [[TMP14:%.*]] = getelementptr inbounds i32, ptr [[DST]], i32 2
; CHECK-NEXT: store i32 0, ptr [[TMP14]], align 4
; CHECK-NEXT: br label [[PRED_STORE_CONTINUE6]]
; CHECK: pred.store.continue6:
; CHECK-NEXT: [[TMP15:%.*]] = extractelement <4 x i1> [[TMP5]], i32 3
; CHECK-NEXT: [[TMP15:%.*]] = extractelement <4 x i1> [[TMP2]], i32 3
; CHECK-NEXT: br i1 [[TMP15]], label [[PRED_STORE_IF7:%.*]], label [[PRED_STORE_CONTINUE8:%.*]]
; CHECK: pred.store.if7:
; CHECK-NEXT: [[TMP17:%.*]] = getelementptr inbounds i32, ptr [[DST]], i32 3
Expand All @@ -107,11 +107,11 @@ define void @redundant_or_1(ptr %dst, i1 %c.0, i1 %c.1) {
; CHECK-NEXT: br label [[LOOP_HEADER:%.*]]
; CHECK: loop.header:
; CHECK-NEXT: [[IV:%.*]] = phi i32 [ 0, [[SCALAR_PH]] ], [ [[IV_NEXT:%.*]], [[LOOP_LATCH:%.*]] ]
; CHECK-NEXT: br i1 [[C_0]], label [[LOOP_LATCH]], label [[THEN_1:%.*]]
; CHECK-NEXT: br i1 [[C_1]], label [[LOOP_LATCH]], label [[THEN_1:%.*]]
; CHECK: then.1:
; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[IV]], 2
; CHECK-NEXT: [[OR:%.*]] = or i1 [[CMP]], true
; CHECK-NEXT: [[COND:%.*]] = select i1 [[OR]], i1 [[C_1]], i1 false
; CHECK-NEXT: [[COND:%.*]] = select i1 [[OR]], i1 [[C_0]], i1 false
; CHECK-NEXT: br i1 [[COND]], label [[THEN_2:%.*]], label [[LOOP_LATCH]]
; CHECK: then.2:
; CHECK-NEXT: [[GEP:%.*]] = getelementptr inbounds i32, ptr [[DST]], i32 [[IV]]
Expand Down Expand Up @@ -158,35 +158,35 @@ define void @redundant_or_2(ptr %dst, i1 %c.0, i1 %c.1) {
; CHECK: vector.ph:
; CHECK-NEXT: [[BROADCAST_SPLATINSERT:%.*]] = insertelement <4 x i1> poison, i1 [[C_1:%.*]], i64 0
; CHECK-NEXT: [[BROADCAST_SPLAT:%.*]] = shufflevector <4 x i1> [[BROADCAST_SPLATINSERT]], <4 x i1> poison, <4 x i32> zeroinitializer
; CHECK-NEXT: [[TMP0:%.*]] = xor <4 x i1> [[BROADCAST_SPLAT]], splat (i1 true)
; CHECK-NEXT: [[BROADCAST_SPLATINSERT1:%.*]] = insertelement <4 x i1> poison, i1 [[C_0:%.*]], i64 0
; CHECK-NEXT: [[BROADCAST_SPLAT2:%.*]] = shufflevector <4 x i1> [[BROADCAST_SPLATINSERT1]], <4 x i1> poison, <4 x i32> zeroinitializer
; CHECK-NEXT: [[TMP1:%.*]] = xor <4 x i1> [[BROADCAST_SPLAT2]], splat (i1 true)
; CHECK-NEXT: [[TMP0:%.*]] = select <4 x i1> [[TMP1]], <4 x i1> [[BROADCAST_SPLAT]], <4 x i1> zeroinitializer
; CHECK-NEXT: br label [[VECTOR_BODY:%.*]]
; CHECK: vector.body:
; CHECK-NEXT: [[TMP3:%.*]] = select <4 x i1> <i1 true, i1 true, i1 true, i1 false>, <4 x i1> [[TMP0]], <4 x i1> zeroinitializer
; CHECK-NEXT: [[TMP4:%.*]] = select <4 x i1> [[TMP3]], <4 x i1> [[BROADCAST_SPLAT2]], <4 x i1> zeroinitializer
; CHECK-NEXT: [[TMP5:%.*]] = extractelement <4 x i1> [[TMP4]], i32 0
; CHECK-NEXT: [[TMP5:%.*]] = extractelement <4 x i1> [[TMP3]], i32 0
; CHECK-NEXT: br i1 [[TMP5]], label [[PRED_STORE_IF:%.*]], label [[PRED_STORE_CONTINUE:%.*]]
; CHECK: pred.store.if:
; CHECK-NEXT: [[TMP7:%.*]] = getelementptr inbounds i32, ptr [[DST:%.*]], i32 0
; CHECK-NEXT: store i32 0, ptr [[TMP7]], align 4
; CHECK-NEXT: br label [[PRED_STORE_CONTINUE]]
; CHECK: pred.store.continue:
; CHECK-NEXT: [[TMP8:%.*]] = extractelement <4 x i1> [[TMP4]], i32 1
; CHECK-NEXT: [[TMP8:%.*]] = extractelement <4 x i1> [[TMP3]], i32 1
; CHECK-NEXT: br i1 [[TMP8]], label [[PRED_STORE_IF3:%.*]], label [[PRED_STORE_CONTINUE4:%.*]]
; CHECK: pred.store.if3:
; CHECK-NEXT: [[TMP10:%.*]] = getelementptr inbounds i32, ptr [[DST]], i32 1
; CHECK-NEXT: store i32 0, ptr [[TMP10]], align 4
; CHECK-NEXT: br label [[PRED_STORE_CONTINUE4]]
; CHECK: pred.store.continue4:
; CHECK-NEXT: [[TMP11:%.*]] = extractelement <4 x i1> [[TMP4]], i32 2
; CHECK-NEXT: [[TMP11:%.*]] = extractelement <4 x i1> [[TMP3]], i32 2
; CHECK-NEXT: br i1 [[TMP11]], label [[PRED_STORE_IF5:%.*]], label [[PRED_STORE_CONTINUE6:%.*]]
; CHECK: pred.store.if5:
; CHECK-NEXT: [[TMP13:%.*]] = getelementptr inbounds i32, ptr [[DST]], i32 2
; CHECK-NEXT: store i32 0, ptr [[TMP13]], align 4
; CHECK-NEXT: br label [[PRED_STORE_CONTINUE6]]
; CHECK: pred.store.continue6:
; CHECK-NEXT: [[TMP14:%.*]] = extractelement <4 x i1> [[TMP4]], i32 3
; CHECK-NEXT: [[TMP14:%.*]] = extractelement <4 x i1> [[TMP3]], i32 3
; CHECK-NEXT: br i1 [[TMP14]], label [[PRED_STORE_IF7:%.*]], label [[PRED_STORE_CONTINUE8:%.*]]
; CHECK: pred.store.if7:
; CHECK-NEXT: [[TMP16:%.*]] = getelementptr inbounds i32, ptr [[DST]], i32 3
Expand All @@ -200,11 +200,11 @@ define void @redundant_or_2(ptr %dst, i1 %c.0, i1 %c.1) {
; CHECK-NEXT: br label [[LOOP_HEADER:%.*]]
; CHECK: loop.header:
; CHECK-NEXT: [[IV:%.*]] = phi i32 [ 0, [[SCALAR_PH]] ], [ [[IV_NEXT:%.*]], [[LOOP_LATCH:%.*]] ]
; CHECK-NEXT: br i1 [[C_1]], label [[LOOP_LATCH]], label [[THEN_1:%.*]]
; CHECK-NEXT: br i1 [[C_0]], label [[LOOP_LATCH]], label [[THEN_1:%.*]]
; CHECK: then.1:
; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[IV]], 2
; CHECK-NEXT: [[OR:%.*]] = or i1 true, [[CMP]]
; CHECK-NEXT: [[COND:%.*]] = select i1 [[OR]], i1 [[C_0]], i1 false
; CHECK-NEXT: [[COND:%.*]] = select i1 [[OR]], i1 [[C_1]], i1 false
; CHECK-NEXT: br i1 [[COND]], label [[THEN_2:%.*]], label [[LOOP_LATCH]]
; CHECK: then.2:
; CHECK-NEXT: [[GEP:%.*]] = getelementptr inbounds i32, ptr [[DST]], i32 [[IV]]
Expand Down Expand Up @@ -256,9 +256,9 @@ define void @redundant_and_1(ptr %dst, i1 %c.0, i1 %c.1) {
; CHECK-NEXT: [[BROADCAST_SPLAT2:%.*]] = shufflevector <4 x i1> [[BROADCAST_SPLATINSERT1]], <4 x i1> poison, <4 x i32> zeroinitializer
; CHECK-NEXT: br label [[VECTOR_BODY:%.*]]
; CHECK: vector.body:
; CHECK-NEXT: [[TMP2:%.*]] = select <4 x i1> <i1 true, i1 true, i1 true, i1 false>, <4 x i1> [[TMP0]], <4 x i1> zeroinitializer
; CHECK-NEXT: [[TMP5:%.*]] = select <4 x i1> <i1 false, i1 false, i1 true, i1 false>, <4 x i1> [[BROADCAST_SPLAT2]], <4 x i1> zeroinitializer
; CHECK-NEXT: [[TMP6:%.*]] = select <4 x i1> [[TMP2]], <4 x i1> [[TMP5]], <4 x i1> zeroinitializer
; CHECK-NEXT: [[TMP2:%.*]] = select <4 x i1> [[TMP0]], <4 x i1> [[TMP5]], <4 x i1> zeroinitializer
; CHECK-NEXT: [[TMP6:%.*]] = select <4 x i1> <i1 true, i1 true, i1 true, i1 false>, <4 x i1> [[TMP2]], <4 x i1> zeroinitializer
; CHECK-NEXT: [[TMP7:%.*]] = extractelement <4 x i1> [[TMP6]], i32 0
; CHECK-NEXT: br i1 [[TMP7]], label [[PRED_STORE_IF:%.*]], label [[PRED_STORE_CONTINUE:%.*]]
; CHECK: pred.store.if:
Expand Down Expand Up @@ -346,10 +346,10 @@ define void @redundant_and_2(ptr %dst, i1 %c.0, i1 %c.1) {
; CHECK-NEXT: [[BROADCAST_SPLATINSERT1:%.*]] = insertelement <4 x i1> poison, i1 [[C_0:%.*]], i64 0
; CHECK-NEXT: [[BROADCAST_SPLAT2:%.*]] = shufflevector <4 x i1> [[BROADCAST_SPLATINSERT1]], <4 x i1> poison, <4 x i32> zeroinitializer
; CHECK-NEXT: [[TMP0:%.*]] = xor <4 x i1> [[BROADCAST_SPLAT2]], splat (i1 true)
; CHECK-NEXT: [[TMP1:%.*]] = select <4 x i1> [[TMP0]], <4 x i1> zeroinitializer, <4 x i1> zeroinitializer
; CHECK-NEXT: br label [[VECTOR_BODY:%.*]]
; CHECK: vector.body:
; CHECK-NEXT: [[TMP3:%.*]] = select <4 x i1> <i1 true, i1 true, i1 true, i1 false>, <4 x i1> [[TMP0]], <4 x i1> zeroinitializer
; CHECK-NEXT: [[TMP4:%.*]] = select <4 x i1> [[TMP3]], <4 x i1> zeroinitializer, <4 x i1> zeroinitializer
; CHECK-NEXT: [[TMP4:%.*]] = select <4 x i1> <i1 true, i1 true, i1 true, i1 false>, <4 x i1> [[TMP1]], <4 x i1> zeroinitializer
; CHECK-NEXT: [[TMP5:%.*]] = extractelement <4 x i1> [[TMP4]], i32 0
; CHECK-NEXT: br i1 [[TMP5]], label [[PRED_STORE_IF:%.*]], label [[PRED_STORE_CONTINUE:%.*]]
; CHECK: pred.store.if:
Expand Down
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