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Oct 21, 2025
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[LV][NFC] Remove undef from phi incoming values #163762

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2d7cc30
[LV][NFC] Remove undef from phi incoming values
david-arm Oct 16, 2025
b713fdd
Address review comments
david-arm Oct 21, 2025
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2 changes: 1 addition & 1 deletion llvm/test/Transforms/LoopVectorize/2012-10-20-infloop.ll
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Expand Up @@ -56,7 +56,7 @@ if.then46: ; preds = %for.body40
br label %for.inc50

for.inc50: ; preds = %if.then46, %for.body40
%k.1 = phi i32 [ undef, %for.body40 ], [ %inc47, %if.then46 ]
%k.1 = phi i32 [ 0, %for.body40 ], [ %inc47, %if.then46 ]
%step.1 = phi i32 [ %step.0121, %for.body40 ], [ %inc47, %if.then46 ]
%indvars.iv.next124 = add i64 %indvars.iv123, 1
%lftr.wideiv = trunc i64 %indvars.iv.next124 to i32
Expand Down
14 changes: 5 additions & 9 deletions llvm/test/Transforms/LoopVectorize/AArch64/pr33053.ll
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Expand Up @@ -9,9 +9,7 @@ define i32 @fn1() local_unnamed_addr #0 {
; We expect the backend to expand all reductions.
; CHECK: @llvm.vector.reduce
entry:
%0 = load i32, ptr @b, align 4, !tbaa !1
%cmp40 = icmp sgt i32 %0, 0
br i1 %cmp40, label %for.body.lr.ph, label %for.end
br label %for.body.lr.ph

for.body.lr.ph: ; preds = %entry
%1 = load ptr, ptr @a, align 8, !tbaa !5
Expand All @@ -21,8 +19,8 @@ for.body.lr.ph: ; preds = %entry

for.body: ; preds = %for.body.lr.ph, %for.body
%indvars.iv = phi i64 [ 0, %for.body.lr.ph ], [ %indvars.iv.next, %for.body ]
%d.043 = phi i16 [ undef, %for.body.lr.ph ], [ %.sink28, %for.body ]
%c.042 = phi i16 [ undef, %for.body.lr.ph ], [ %c.0., %for.body ]
%d.043 = phi i16 [ 0, %for.body.lr.ph ], [ %.sink28, %for.body ]
%c.042 = phi i16 [ 0, %for.body.lr.ph ], [ %c.0., %for.body ]
%arrayidx = getelementptr inbounds i16, ptr %1, i64 %indvars.iv
%4 = load i16, ptr %arrayidx, align 2, !tbaa !7
%cmp2 = icmp sgt i16 %c.042, %4
Expand All @@ -33,10 +31,8 @@ for.body: ; preds = %for.body.lr.ph, %fo
%cmp = icmp slt i64 %indvars.iv.next, %3
br i1 %cmp, label %for.body, label %for.end

for.end: ; preds = %for.body, %entry
%c.0.lcssa = phi i16 [ undef, %entry ], [ %c.0., %for.body ]
%d.0.lcssa = phi i16 [ undef, %entry ], [ %.sink28, %for.body ]
%cmp26 = icmp sgt i16 %c.0.lcssa, %d.0.lcssa
for.end: ; preds = %for.body
%cmp26 = icmp sgt i16 %c.0., %.sink28
%conv27 = zext i1 %cmp26 to i32
ret i32 %conv27
}
Expand Down
4 changes: 2 additions & 2 deletions llvm/test/Transforms/LoopVectorize/AArch64/pr36032.ll
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Expand Up @@ -18,7 +18,7 @@ define void @_Z1dv() local_unnamed_addr #0 {
; CHECK-NEXT: br label [[FOR_COND:%.*]]
; CHECK: for.cond:
; CHECK-NEXT: [[F_0:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[ADD5:%.*]], [[FOR_COND_CLEANUP:%.*]] ]
; CHECK-NEXT: [[G_0:%.*]] = phi i32 [ undef, [[ENTRY]] ], [ [[G_1_LCSSA:%.*]], [[FOR_COND_CLEANUP]] ]
; CHECK-NEXT: [[G_0:%.*]] = phi i32 [ 0, [[ENTRY]] ], [ [[G_1_LCSSA:%.*]], [[FOR_COND_CLEANUP]] ]
; CHECK-NEXT: [[CMP12:%.*]] = icmp ult i32 [[G_0]], 4
; CHECK-NEXT: [[CONV:%.*]] = and i32 [[F_0]], 65535
; CHECK-NEXT: br i1 [[CMP12]], label [[FOR_BODY_LR_PH:%.*]], label [[FOR_COND_CLEANUP]]
Expand Down Expand Up @@ -50,7 +50,7 @@ entry:

for.cond: ; preds = %for.cond.cleanup, %entry
%f.0 = phi i32 [ 0, %entry ], [ %add5, %for.cond.cleanup ]
%g.0 = phi i32 [ undef, %entry ], [ %g.1.lcssa, %for.cond.cleanup ]
%g.0 = phi i32 [ 0, %entry ], [ %g.1.lcssa, %for.cond.cleanup ]
%cmp12 = icmp ult i32 %g.0, 4
%conv = and i32 %f.0, 65535
br i1 %cmp12, label %for.body.lr.ph, label %for.cond.cleanup
Expand Down
8 changes: 4 additions & 4 deletions llvm/test/Transforms/LoopVectorize/AArch64/sve-interleaved-accesses.ll
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Expand Up @@ -728,8 +728,8 @@ define void @int_float_struct(ptr nocapture readonly %p) #0 {
; CHECK-NEXT: br label [[VECTOR_BODY:%.*]]
; CHECK: vector.body:
; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
; CHECK-NEXT: [[VEC_PHI:%.*]] = phi <vscale x 4 x float> [ insertelement (<vscale x 4 x float> zeroinitializer, float undef, i32 0), [[VECTOR_PH]] ], [ [[TMP7:%.*]], [[VECTOR_BODY]] ]
; CHECK-NEXT: [[VEC_PHI1:%.*]] = phi <vscale x 4 x i32> [ insertelement (<vscale x 4 x i32> zeroinitializer, i32 undef, i32 0), [[VECTOR_PH]] ], [ [[TMP6:%.*]], [[VECTOR_BODY]] ]
; CHECK-NEXT: [[VEC_PHI:%.*]] = phi <vscale x 4 x float> [ zeroinitializer, [[VECTOR_PH]] ], [ [[TMP7:%.*]], [[VECTOR_BODY]] ]
; CHECK-NEXT: [[VEC_PHI1:%.*]] = phi <vscale x 4 x i32> [ zeroinitializer, [[VECTOR_PH]] ], [ [[TMP6:%.*]], [[VECTOR_BODY]] ]
; CHECK-NEXT: [[TMP2:%.*]] = getelementptr inbounds [[STRUCT_INTFLOAT:%.*]], ptr [[P:%.*]], i64 [[INDEX]]
; CHECK-NEXT: [[WIDE_VEC:%.*]] = load <vscale x 8 x i32>, ptr [[TMP2]], align 4
; CHECK-NEXT: [[STRIDED_VEC:%.*]] = call { <vscale x 4 x i32>, <vscale x 4 x i32> } @llvm.vector.deinterleave2.nxv8i32(<vscale x 8 x i32> [[WIDE_VEC]])
Expand All @@ -755,8 +755,8 @@ for.cond.cleanup: ; preds = %for.body

for.body: ; preds = %for.body, %entry
%indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]
%SumB.014 = phi float [ undef, %entry ], [ %add3, %for.body ]
%SumA.013 = phi i32 [ undef, %entry ], [ %add, %for.body ]
%SumB.014 = phi float [ 0.0e+00, %entry ], [ %add3, %for.body ]
%SumA.013 = phi i32 [ 0, %entry ], [ %add, %for.body ]
%a = getelementptr inbounds %struct.IntFloat, ptr %p, i64 %indvars.iv, i32 0
%load1 = load i32, ptr %a, align 4
%add = add nsw i32 %load1, %SumA.013
Expand Down
34 changes: 14 additions & 20 deletions llvm/test/Transforms/LoopVectorize/ARM/arm-ieee-vectorize.ll
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Expand Up @@ -84,15 +84,14 @@ for.end: ; preds = %for.end.loopexit, %
; CHECK: We can vectorize this loop!
define i32 @redi(ptr noalias nocapture readonly %a, ptr noalias nocapture readonly %b, i32 %N) {
entry:
%cmp5 = icmp eq i32 %N, 0
br i1 %cmp5, label %for.end, label %for.body.preheader
br label %for.body.preheader

for.body.preheader: ; preds = %entry
br label %for.body

for.body: ; preds = %for.body.preheader, %for.body
%i.07 = phi i32 [ %inc, %for.body ], [ 0, %for.body.preheader ]
%Red.06 = phi i32 [ %add, %for.body ], [ undef, %for.body.preheader ]
%Red.06 = phi i32 [ %add, %for.body ], [ 0, %for.body.preheader ]
%arrayidx = getelementptr inbounds i32, ptr %a, i32 %i.07
%0 = load i32, ptr %arrayidx, align 4
%arrayidx1 = getelementptr inbounds i32, ptr %b, i32 %i.07
Expand All @@ -107,9 +106,8 @@ for.end.loopexit: ; preds = %for.body
%add.lcssa = phi i32 [ %add, %for.body ]
br label %for.end

for.end: ; preds = %for.end.loopexit, %entry
%Red.0.lcssa = phi i32 [ undef, %entry ], [ %add.lcssa, %for.end.loopexit ]
ret i32 %Red.0.lcssa
for.end: ; preds = %for.end.loopexit
ret i32 %add.lcssa
}

; Floating-point loops need fast-math to be vectorizeable
Expand All @@ -121,15 +119,14 @@ for.end: ; preds = %for.end.loopexit, %
; DARWIN: We can vectorize this loop!
define float @redf(ptr noalias nocapture readonly %a, ptr noalias nocapture readonly %b, i32 %N) {
entry:
%cmp5 = icmp eq i32 %N, 0
br i1 %cmp5, label %for.end, label %for.body.preheader
br label %for.body.preheader

for.body.preheader: ; preds = %entry
br label %for.body

for.body: ; preds = %for.body.preheader, %for.body
%i.07 = phi i32 [ %inc, %for.body ], [ 0, %for.body.preheader ]
%Red.06 = phi float [ %add, %for.body ], [ undef, %for.body.preheader ]
%Red.06 = phi float [ %add, %for.body ], [ 0.0e+00, %for.body.preheader ]
%arrayidx = getelementptr inbounds float, ptr %a, i32 %i.07
%0 = load float, ptr %arrayidx, align 4
%arrayidx1 = getelementptr inbounds float, ptr %b, i32 %i.07
Expand All @@ -144,9 +141,8 @@ for.end.loopexit: ; preds = %for.body
%add.lcssa = phi float [ %add, %for.body ]
br label %for.end

for.end: ; preds = %for.end.loopexit, %entry
%Red.0.lcssa = phi float [ undef, %entry ], [ %add.lcssa, %for.end.loopexit ]
ret float %Red.0.lcssa
for.end: ; preds = %for.end.loopexit
ret float %add.lcssa
}

; Make sure calls that turn into builtins are also covered
Expand Down Expand Up @@ -252,7 +248,7 @@ for.body.preheader: ; preds = %entry

for.body: ; preds = %for.body.preheader, %for.body
%i.07 = phi i32 [ %inc, %for.body ], [ 0, %for.body.preheader ]
%Red.06 = phi i32 [ %add, %for.body ], [ undef, %for.body.preheader ]
%Red.06 = phi i32 [ %add, %for.body ], [ 0, %for.body.preheader ]
%arrayidx = getelementptr inbounds i32, ptr %a, i32 %i.07
%0 = load i32, ptr %arrayidx, align 4
%arrayidx1 = getelementptr inbounds i32, ptr %b, i32 %i.07
Expand All @@ -268,7 +264,7 @@ for.end.loopexit: ; preds = %for.body
br label %for.end

for.end: ; preds = %for.end.loopexit, %entry
%Red.0.lcssa = phi i32 [ undef, %entry ], [ %add.lcssa, %for.end.loopexit ]
%Red.0.lcssa = phi i32 [ 0, %entry ], [ %add.lcssa, %for.end.loopexit ]
ret i32 %Red.0.lcssa
}

Expand All @@ -277,15 +273,14 @@ for.end: ; preds = %for.end.loopexit, %
; CHECK: We can vectorize this loop!
define float @redf_fast(ptr noalias nocapture readonly %a, ptr noalias nocapture readonly %b, i32 %N) {
entry:
%cmp5 = icmp eq i32 %N, 0
br i1 %cmp5, label %for.end, label %for.body.preheader
br label %for.body.preheader

for.body.preheader: ; preds = %entry
br label %for.body

for.body: ; preds = %for.body.preheader, %for.body
%i.07 = phi i32 [ %inc, %for.body ], [ 0, %for.body.preheader ]
%Red.06 = phi float [ %add, %for.body ], [ undef, %for.body.preheader ]
%Red.06 = phi float [ %add, %for.body ], [ 0.0e+00, %for.body.preheader ]
%arrayidx = getelementptr inbounds float, ptr %a, i32 %i.07
%0 = load float, ptr %arrayidx, align 4
%arrayidx1 = getelementptr inbounds float, ptr %b, i32 %i.07
Expand All @@ -300,9 +295,8 @@ for.end.loopexit: ; preds = %for.body
%add.lcssa = phi float [ %add, %for.body ]
br label %for.end

for.end: ; preds = %for.end.loopexit, %entry
%Red.0.lcssa = phi float [ undef, %entry ], [ %add.lcssa, %for.end.loopexit ]
ret float %Red.0.lcssa
for.end: ; preds = %for.end.loopexit
ret float %add.lcssa
}

; Make sure calls that turn into builtins are also covered
Expand Down
2 changes: 1 addition & 1 deletion llvm/test/Transforms/LoopVectorize/ARM/mve-known-trip-count.ll
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Expand Up @@ -249,7 +249,7 @@ define dso_local i32 @predicated_test(i32 noundef %0, ptr %glob) #0 {
br label %7

7: ; preds = %5, %155
%8 = phi i32 [ %10, %155 ], [ undef, %5 ]
%8 = phi i32 [ %10, %155 ], [ 0, %5 ]
%9 = phi i32 [ %156, %155 ], [ 0, %5 ]
%10 = shl i32 %8, 4
store i32 %10, ptr %6, align 4
Expand Down
4 changes: 2 additions & 2 deletions llvm/test/Transforms/LoopVectorize/X86/fp80-widest-type.ll
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Expand Up @@ -14,7 +14,7 @@ define x86_fp80 @test() {
; CHECK-NEXT: br label [[FOR_BODY3_I_3:%.*]]
; CHECK: for.body3.i.3:
; CHECK-NEXT: [[N_ADDR_112_I_3:%.*]] = phi i64 [ [[DEC_I_3:%.*]], [[FOR_BODY3_I_3]] ], [ 24, [[FOO_EXIT:%.*]] ]
; CHECK-NEXT: [[X_ADDR_111_I_3:%.*]] = phi x86_fp80 [ [[MUL_I_3:%.*]], [[FOR_BODY3_I_3]] ], [ undef, [[FOO_EXIT]] ]
; CHECK-NEXT: [[X_ADDR_111_I_3:%.*]] = phi x86_fp80 [ [[MUL_I_3:%.*]], [[FOR_BODY3_I_3]] ], [ 0xK00000000000000000000, [[FOO_EXIT]] ]
; CHECK-NEXT: [[MUL_I_3]] = fmul x86_fp80 [[X_ADDR_111_I_3]], 0xK40008000000000000000
; CHECK-NEXT: [[DEC_I_3]] = add nsw i64 [[N_ADDR_112_I_3]], -1
; CHECK-NEXT: [[CMP2_I_3:%.*]] = icmp sgt i64 [[N_ADDR_112_I_3]], 1
Expand All @@ -28,7 +28,7 @@ foo.exit:

for.body3.i.3: ; preds = %for.body3.i.3, %foo.exit
%n.addr.112.i.3 = phi i64 [ %dec.i.3, %for.body3.i.3 ], [ 24, %foo.exit ]
%x.addr.111.i.3 = phi x86_fp80 [ %mul.i.3, %for.body3.i.3 ], [ undef, %foo.exit ]
%x.addr.111.i.3 = phi x86_fp80 [ %mul.i.3, %for.body3.i.3 ], [ zeroinitializer, %foo.exit ]
%mul.i.3 = fmul x86_fp80 %x.addr.111.i.3, 0xK40008000000000000000
%dec.i.3 = add nsw i64 %n.addr.112.i.3, -1
%cmp2.i.3 = icmp sgt i64 %n.addr.112.i.3, 1
Expand Down
8 changes: 4 additions & 4 deletions llvm/test/Transforms/LoopVectorize/X86/rauw-bug.ll
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Expand Up @@ -21,10 +21,10 @@ while.cond63.preheader.while.end76_crit_edge:
ret void

while.body:
%d2_fx.015 = phi double [ %sub52, %while.body ], [ undef, %entry ]
%d2_fy.014 = phi double [ %sub58, %while.body ], [ undef, %entry ]
%d3_fy.013 = phi double [ %div56, %while.body ], [ undef, %entry ]
%d3_fx.012 = phi double [ %div50, %while.body ], [ undef, %entry ]
%d2_fx.015 = phi double [ %sub52, %while.body ], [ 0.0e+00, %entry ]
%d2_fy.014 = phi double [ %sub58, %while.body ], [ 0.0e+00, %entry ]
%d3_fy.013 = phi double [ %div56, %while.body ], [ 0.0e+00, %entry ]
%d3_fx.012 = phi double [ %div50, %while.body ], [ 0.0e+00, %entry ]
%div50 = fmul double %d3_fx.012, 1.250000e-01
%sub52 = fsub double 0.000000e+00, %div50
%div56 = fmul double %d3_fy.013, 1.250000e-01
Expand Down
2 changes: 1 addition & 1 deletion llvm/test/Transforms/LoopVectorize/X86/x86_fp80-interleaved-access.ll
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Expand Up @@ -15,7 +15,7 @@ for.cond.cleanup:

for.body:
%i.09 = phi i16 [ 0, %entry ], [ %add3, %for.body ]
%res.08 = phi x86_fp80 [ undef, %entry ], [ %3, %for.body ]
%res.08 = phi x86_fp80 [ zeroinitializer, %entry ], [ %3, %for.body ]
%arrayidx = getelementptr inbounds x86_fp80, ptr %a, i16 %i.09
%0 = load x86_fp80, ptr %arrayidx, align 1
%add = or i16 %i.09, 1
Expand Down
2 changes: 1 addition & 1 deletion llvm/test/Transforms/LoopVectorize/i8-induction.ll
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Expand Up @@ -20,7 +20,7 @@ scalar.ph:

for.body:
%mul16 = phi i8 [ 0, %scalar.ph ], [ %mul, %for.body ] ; <------- i8 induction var.
%c.015 = phi i8 [ undef, %scalar.ph ], [ %conv8, %for.body ]
%c.015 = phi i8 [ 0, %scalar.ph ], [ %conv8, %for.body ]
%conv2 = sext i8 %c.015 to i32
%tobool = icmp ne i8 %c.015, 0
%.sink = select i1 %tobool, i8 %c.015, i8 %0
Expand Down
4 changes: 2 additions & 2 deletions llvm/test/Transforms/LoopVectorize/if-pred-stores.ll
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Expand Up @@ -277,7 +277,7 @@ define void @bug18724(i1 %cond, ptr %ptr, i1 %cond.2, i64 %v.1, i32 %v.2) {
; UNROLL-NOSIMPLIFY-NEXT: [[INEWCHUNKS_2_LCSSA:%.*]] = phi i32 [ [[INEWCHUNKS_2]], [[FOR_INC23]] ], [ [[BIN_RDX]], [[MIDDLE_BLOCK]] ]
; UNROLL-NOSIMPLIFY-NEXT: br label [[FOR_INC26]]
; UNROLL-NOSIMPLIFY: for.inc26:
; UNROLL-NOSIMPLIFY-NEXT: [[INEWCHUNKS_1_LCSSA:%.*]] = phi i32 [ undef, [[FOR_BODY9]] ], [ [[INEWCHUNKS_2_LCSSA]], [[FOR_INC26_LOOPEXIT]] ]
; UNROLL-NOSIMPLIFY-NEXT: [[INEWCHUNKS_1_LCSSA:%.*]] = phi i32 [ 0, [[FOR_BODY9]] ], [ [[INEWCHUNKS_2_LCSSA]], [[FOR_INC26_LOOPEXIT]] ]
; UNROLL-NOSIMPLIFY-NEXT: unreachable
;
; VEC-LABEL: @bug18724(
Expand Down Expand Up @@ -376,7 +376,7 @@ for.inc23:
br i1 %cmp13, label %for.body14, label %for.inc26

for.inc26:
%iNewChunks.1.lcssa = phi i32 [ undef, %for.body9 ], [ %iNewChunks.2, %for.inc23 ]
%iNewChunks.1.lcssa = phi i32 [ 0, %for.body9 ], [ %iNewChunks.2, %for.inc23 ]
unreachable
}

Expand Down
4 changes: 2 additions & 2 deletions llvm/test/Transforms/LoopVectorize/incorrect-dom-info.ll
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Expand Up @@ -53,8 +53,8 @@ thread-pre-split.loopexit: ; preds = %11, %.thread-pre-sp
br i1 false, label %thread-pre-split._crit_edge, label %.lr.ph21

.lr.ph21: ; preds = %26, %thread-pre-split.loopexit, %thread-pre-split.preheader
%d.020 = phi ptr [ undef, %26 ], [ %d.1.lcssa, %thread-pre-split.loopexit ], [ undef, %thread-pre-split.preheader ]
%10 = phi i64 [ %28, %26 ], [ undef, %thread-pre-split.loopexit ], [ undef, %thread-pre-split.preheader ]
%d.020 = phi ptr [ zeroinitializer, %26 ], [ %d.1.lcssa, %thread-pre-split.loopexit ], [ zeroinitializer, %thread-pre-split.preheader ]
%10 = phi i64 [ %28, %26 ], [ zeroinitializer, %thread-pre-split.loopexit ], [ zeroinitializer, %thread-pre-split.preheader ]
br i1 %arg, label %11, label %22

; <label>:11 ; preds = %.lr.ph21
Expand Down
8 changes: 4 additions & 4 deletions llvm/test/Transforms/LoopVectorize/interleaved-accesses.ll
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Expand Up @@ -791,8 +791,8 @@ define void @int_float_struct(ptr nocapture readonly %A) #0 {
; CHECK-NEXT: br label [[VECTOR_BODY:%.*]]
; CHECK: vector.body:
; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
; CHECK-NEXT: [[VEC_PHI:%.*]] = phi <4 x float> [ <float undef, float 0.000000e+00, float 0.000000e+00, float 0.000000e+00>, [[VECTOR_PH]] ], [ [[TMP3:%.*]], [[VECTOR_BODY]] ]
; CHECK-NEXT: [[VEC_PHI1:%.*]] = phi <4 x i32> [ <i32 undef, i32 0, i32 0, i32 0>, [[VECTOR_PH]] ], [ [[TMP2:%.*]], [[VECTOR_BODY]] ]
; CHECK-NEXT: [[VEC_PHI:%.*]] = phi <4 x float> [ zeroinitializer, [[VECTOR_PH]] ], [ [[TMP3:%.*]], [[VECTOR_BODY]] ]
; CHECK-NEXT: [[VEC_PHI1:%.*]] = phi <4 x i32> [ zeroinitializer, [[VECTOR_PH]] ], [ [[TMP2:%.*]], [[VECTOR_BODY]] ]
; CHECK-NEXT: [[TMP0:%.*]] = getelementptr inbounds [[STRUCT_INTFLOAT:%.*]], ptr [[A:%.*]], i64 [[INDEX]]
; CHECK-NEXT: [[WIDE_VEC:%.*]] = load <8 x i32>, ptr [[TMP0]], align 4
; CHECK-NEXT: [[STRIDED_VEC:%.*]] = shufflevector <8 x i32> [[WIDE_VEC]], <8 x i32> poison, <4 x i32> <i32 0, i32 2, i32 4, i32 6>
Expand Down Expand Up @@ -822,8 +822,8 @@ for.cond.cleanup: ; preds = %for.body

for.body: ; preds = %for.body, %entry
%indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]
%SumB.014 = phi float [ undef, %entry ], [ %add3, %for.body ]
%SumA.013 = phi i32 [ undef, %entry ], [ %add, %for.body ]
%SumB.014 = phi float [ 0.0e+00, %entry ], [ %add3, %for.body ]
%SumA.013 = phi i32 [ 0, %entry ], [ %add, %for.body ]
%a = getelementptr inbounds %struct.IntFloat, ptr %A, i64 %indvars.iv, i32 0
%tmp = load i32, ptr %a, align 4
%add = add nsw i32 %tmp, %SumA.013
Expand Down
2 changes: 1 addition & 1 deletion llvm/test/Transforms/LoopVectorize/middle-block-dbg.ll
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Expand Up @@ -48,7 +48,7 @@ for.cond.cleanup.loopexit:
br label %for.cond.cleanup, !dbg !33

for.cond.cleanup:
%2 = phi i32 [ %.pre, %for.cond.cleanup.loopexit ], [ undef, %entry ], !dbg !33
%2 = phi i32 [ %.pre, %for.cond.cleanup.loopexit ], [ 0, %entry ], !dbg !33
%sub = add nsw i32 %0, -5, !dbg !33
%idxprom3 = sext i32 %sub to i64, !dbg !33
%arrayidx4 = getelementptr inbounds i32, ptr %vla, i64 %idxprom3, !dbg !33
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4 changes: 2 additions & 2 deletions llvm/test/Transforms/LoopVectorize/multi-use-reduction-bug.ll
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Expand Up @@ -22,8 +22,8 @@ entry:
br label %for.body

for.body:
%inc107 = phi i32 [ undef, %entry ], [ %inc10, %for.body ]
%inc6 = phi i32 [ %nf.promoted, %entry ], [ undef, %for.body ]
%inc107 = phi i32 [ 0, %entry ], [ %inc10, %for.body ]
%inc6 = phi i32 [ %nf.promoted, %entry ], [ 3, %for.body ]
%add55 = phi i32 [ %n.promoted, %entry ], [ %add5, %for.body ]
%.neg2 = sub i32 0, %inc6
%add.neg = add i32 0, %add55
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