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llvm-mirror/test/Transforms/LoopVectorize/float-induction.ll
Daniel Neilson ccaecad889 [LV] Preserve inbounds on created GEPs 
Summary:
This is a fix for PR23997.

The loop vectorizer is not preserving the inbounds property of GEPs that it creates.
This is inhibiting some optimizations. This patch preserves the inbounds property in
the case where a load/store is being fed by an inbounds GEP.

Reviewers: mkuper, javed.absar, hsaito

Reviewed By: hsaito

Subscribers: dcaballe, hsaito, llvm-commits

Differential Revision: https://reviews.llvm.org/D46191

llvm-svn: 331269
2018-05-01 15:35:08 +00:00

341 lines
20 KiB
LLVM
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; RUN: opt < %s -loop-vectorize -force-vector-interleave=1 -force-vector-width=4 -dce -instcombine -S | FileCheck --check-prefix VEC4_INTERL1 %s
; RUN: opt < %s -loop-vectorize -force-vector-interleave=2 -force-vector-width=4 -dce -instcombine -S | FileCheck --check-prefix VEC4_INTERL2 %s
; RUN: opt < %s -loop-vectorize -force-vector-interleave=2 -force-vector-width=1 -dce -instcombine -S | FileCheck --check-prefix VEC1_INTERL2 %s
; RUN: opt < %s -loop-vectorize -force-vector-interleave=1 -force-vector-width=2 -dce -simplifycfg -instcombine -simplifycfg -keep-loops=false -S | FileCheck --check-prefix VEC2_INTERL1_PRED_STORE %s
@fp_inc = common global float 0.000000e+00, align 4
;void fp_iv_loop1(float init, float * __restrict__ A, int N) {
; float x = init;
; for (int i=0; i < N; ++i) {
; A[i] = x;
; x -= fp_inc;
; }
;}
; VEC4_INTERL1-LABEL: @fp_iv_loop1(
; VEC4_INTERL1: vector.ph:
; VEC4_INTERL1: [[DOTSPLATINSERT:%.*]] = insertelement <4 x float> undef, float %init, i32 0
; VEC4_INTERL1-NEXT: [[DOTSPLAT:%.*]] = shufflevector <4 x float> [[DOTSPLATINSERT]], <4 x float> undef, <4 x i32> zeroinitializer
; VEC4_INTERL1-NEXT: [[DOTSPLATINSERT2:%.*]] = insertelement <4 x float> undef, float %fpinc, i32 0
; VEC4_INTERL1-NEXT: [[DOTSPLAT3:%.*]] = shufflevector <4 x float> [[DOTSPLATINSERT2]], <4 x float> undef, <4 x i32> zeroinitializer
; VEC4_INTERL1-NEXT: [[TMP5:%.*]] = fmul fast <4 x float> [[DOTSPLAT3]], <float 0.000000e+00, float 1.000000e+00, float 2.000000e+00, float 3.000000e+00>
; VEC4_INTERL1-NEXT: [[INDUCTION4:%.*]] = fsub fast <4 x float> [[DOTSPLAT]], [[TMP5]]
; VEC4_INTERL1-NEXT: [[TMP6:%.*]] = fmul fast float %fpinc, 4.000000e+00
; VEC4_INTERL1-NEXT: [[DOTSPLATINSERT5:%.*]] = insertelement <4 x float> undef, float [[TMP6]], i32 0
; VEC4_INTERL1-NEXT: [[DOTSPLAT6:%.*]] = shufflevector <4 x float> [[DOTSPLATINSERT5]], <4 x float> undef, <4 x i32> zeroinitializer
; VEC4_INTERL1-NEXT: br label %vector.body
; VEC4_INTERL1: vector.body:
; VEC4_INTERL1-NEXT: [[INDEX:%.*]] = phi i64 [ 0, %vector.ph ], [ [[INDEX_NEXT:%.*]], %vector.body ]
; VEC4_INTERL1-NEXT: [[VEC_IND:%.*]] = phi <4 x float> [ [[INDUCTION4]], %vector.ph ], [ [[VEC_IND_NEXT:%.*]], %vector.body ]
; VEC4_INTERL1-NEXT: [[TMP8:%.*]] = getelementptr inbounds float, float* %A, i64 [[INDEX]]
; VEC4_INTERL1-NEXT: [[TMP9:%.*]] = bitcast float* [[TMP8]] to <4 x float>*
; VEC4_INTERL1-NEXT: store <4 x float> [[VEC_IND]], <4 x float>* [[TMP9]], align 4
; VEC4_INTERL1-NEXT: [[INDEX_NEXT]] = add i64 [[INDEX]], 4
; VEC4_INTERL1-NEXT: [[VEC_IND_NEXT]] = fsub fast <4 x float> [[VEC_IND]], [[DOTSPLAT6]]
; VEC4_INTERL1: br i1 {{.*}}, label %middle.block, label %vector.body
; VEC4_INTERL2-LABEL: @fp_iv_loop1(
; VEC4_INTERL2: vector.ph:
; VEC4_INTERL2: [[DOTSPLATINSERT:%.*]] = insertelement <4 x float> undef, float %init, i32 0
; VEC4_INTERL2-NEXT: [[DOTSPLAT:%.*]] = shufflevector <4 x float> [[DOTSPLATINSERT]], <4 x float> undef, <4 x i32> zeroinitializer
; VEC4_INTERL2-NEXT: [[DOTSPLATINSERT3:%.*]] = insertelement <4 x float> undef, float %fpinc, i32 0
; VEC4_INTERL2-NEXT: [[DOTSPLAT4:%.*]] = shufflevector <4 x float> [[DOTSPLATINSERT3]], <4 x float> undef, <4 x i32> zeroinitializer
; VEC4_INTERL2-NEXT: [[TMP5:%.*]] = fmul fast <4 x float> [[DOTSPLAT4]], <float 0.000000e+00, float 1.000000e+00, float 2.000000e+00, float 3.000000e+00>
; VEC4_INTERL2-NEXT: [[INDUCTION5:%.*]] = fsub fast <4 x float> [[DOTSPLAT]], [[TMP5]]
; VEC4_INTERL2-NEXT: [[TMP6:%.*]] = fmul fast float %fpinc, 4.000000e+00
; VEC4_INTERL2-NEXT: [[DOTSPLATINSERT6:%.*]] = insertelement <4 x float> undef, float [[TMP6]], i32 0
; VEC4_INTERL2-NEXT: [[DOTSPLAT7:%.*]] = shufflevector <4 x float> [[DOTSPLATINSERT6]], <4 x float> undef, <4 x i32> zeroinitializer
; VEC4_INTERL2-NEXT: br label %vector.body
; VEC4_INTERL2: vector.body:
; VEC4_INTERL2-NEXT: [[INDEX:%.*]] = phi i64 [ 0, %vector.ph ], [ [[INDEX_NEXT:%.*]], %vector.body ]
; VEC4_INTERL2-NEXT: [[VEC_IND:%.*]] = phi <4 x float> [ [[INDUCTION5]], %vector.ph ], [ [[VEC_IND_NEXT:%.*]], %vector.body ]
; VEC4_INTERL2-NEXT: [[STEP_ADD:%.*]] = fsub fast <4 x float> [[VEC_IND]], [[DOTSPLAT7]]
; VEC4_INTERL2-NEXT: [[TMP9:%.*]] = getelementptr inbounds float, float* %A, i64 [[INDEX]]
; VEC4_INTERL2-NEXT: [[TMP10:%.*]] = bitcast float* [[TMP9]] to <4 x float>*
; VEC4_INTERL2-NEXT: store <4 x float> [[VEC_IND]], <4 x float>* [[TMP10]], align 4
; VEC4_INTERL2-NEXT: [[TMP11:%.*]] = getelementptr inbounds float, float* [[TMP9]], i64 4
; VEC4_INTERL2-NEXT: [[TMP12:%.*]] = bitcast float* [[TMP11]] to <4 x float>*
; VEC4_INTERL2-NEXT: store <4 x float> [[STEP_ADD]], <4 x float>* [[TMP12]], align 4
; VEC4_INTERL2-NEXT: [[INDEX_NEXT]] = add i64 [[INDEX]], 8
; VEC4_INTERL2-NEXT: [[VEC_IND_NEXT]] = fsub fast <4 x float> [[STEP_ADD]], [[DOTSPLAT7]]
; VEC4_INTERL2: br i1 {{.*}}, label %middle.block, label %vector.body
; VEC1_INTERL2-LABEL: @fp_iv_loop1(
; VEC1_INTERL2: vector.ph:
; VEC1_INTERL2: br label %vector.body
; VEC1_INTERL2: vector.body:
; VEC1_INTERL2-NEXT: [[INDEX:%.*]] = phi i64 [ 0, %vector.ph ], [ [[INDEX_NEXT:%.*]], %vector.body ]
; VEC1_INTERL2-NEXT: [[INDUCTION2:%.*]] = or i64 [[INDEX]], 1
; VEC1_INTERL2-NEXT: [[TMP6:%.*]] = sitofp i64 [[INDEX]] to float
; VEC1_INTERL2-NEXT: [[TMP7:%.*]] = fmul fast float %fpinc, [[TMP6]]
; VEC1_INTERL2-NEXT: [[FP_OFFSET_IDX:%.*]] = fsub fast float %init, [[TMP7]]
; VEC1_INTERL2-NEXT: [[TMP8:%.*]] = fsub fast float [[FP_OFFSET_IDX]], %fpinc
; VEC1_INTERL2-NEXT: [[TMP9:%.*]] = getelementptr inbounds float, float* %A, i64 [[INDEX]]
; VEC1_INTERL2-NEXT: [[TMP10:%.*]] = getelementptr inbounds float, float* %A, i64 [[INDUCTION2]]
; VEC1_INTERL2-NEXT: store float [[FP_OFFSET_IDX]], float* [[TMP9]], align 4
; VEC1_INTERL2-NEXT: store float [[TMP8]], float* [[TMP10]], align 4
; VEC1_INTERL2-NEXT: [[INDEX_NEXT]] = add i64 [[INDEX]], 2
; VEC1_INTERL2: br i1 {{.*}}, label %middle.block, label %vector.body
define void @fp_iv_loop1(float %init, float* noalias nocapture %A, i32 %N) #1 {
entry:
%cmp4 = icmp sgt i32 %N, 0
br i1 %cmp4, label %for.body.lr.ph, label %for.end
for.body.lr.ph: ; preds = %entry
%fpinc = load float, float* @fp_inc, align 4
br label %for.body
for.body: ; preds = %for.body, %for.body.lr.ph
%indvars.iv = phi i64 [ 0, %for.body.lr.ph ], [ %indvars.iv.next, %for.body ]
%x.05 = phi float [ %init, %for.body.lr.ph ], [ %add, %for.body ]
%arrayidx = getelementptr inbounds float, float* %A, i64 %indvars.iv
store float %x.05, float* %arrayidx, align 4
%add = fsub fast float %x.05, %fpinc
%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
%lftr.wideiv = trunc i64 %indvars.iv.next to i32
%exitcond = icmp eq i32 %lftr.wideiv, %N
br i1 %exitcond, label %for.end.loopexit, label %for.body
for.end.loopexit: ; preds = %for.body
br label %for.end
for.end: ; preds = %for.end.loopexit, %entry
ret void
}
;void fp_iv_loop2(float init, float * __restrict__ A, int N) {
; float x = init;
; for (int i=0; i < N; ++i) {
; A[i] = x;
; x += 0.5;
; }
;}
; VEC4_INTERL1-LABEL: @fp_iv_loop2(
; VEC4_INTERL1: vector.ph:
; VEC4_INTERL1: [[DOTSPLATINSERT:%.*]] = insertelement <4 x float> undef, float %init, i32 0
; VEC4_INTERL1-NEXT: [[DOTSPLAT:%.*]] = shufflevector <4 x float> [[DOTSPLATINSERT]], <4 x float> undef, <4 x i32> zeroinitializer
; VEC4_INTERL1-NEXT: [[INDUCTION2:%.*]] = fadd fast <4 x float> [[DOTSPLAT]], <float 0.000000e+00, float 5.000000e-01, float 1.000000e+00, float 1.500000e+00>
; VEC4_INTERL1-NEXT: br label %vector.body
; VEC4_INTERL1: vector.body:
; VEC4_INTERL1-NEXT: [[INDEX:%.*]] = phi i64 [ 0, %vector.ph ], [ [[INDEX_NEXT:%.*]], %vector.body ]
; VEC4_INTERL1-NEXT: [[VEC_IND:%.*]] = phi <4 x float> [ [[INDUCTION2]], %vector.ph ], [ [[VEC_IND_NEXT:%.*]], %vector.body ]
; VEC4_INTERL1-NEXT: [[TMP7:%.*]] = getelementptr inbounds float, float* %A, i64 [[INDEX]]
; VEC4_INTERL1-NEXT: [[TMP8:%.*]] = bitcast float* [[TMP7]] to <4 x float>*
; VEC4_INTERL1-NEXT: store <4 x float> [[VEC_IND]], <4 x float>* [[TMP8]], align 4
; VEC4_INTERL1-NEXT: [[INDEX_NEXT]] = add i64 [[INDEX]], 4
; VEC4_INTERL1-NEXT: [[VEC_IND_NEXT]] = fadd fast <4 x float> [[VEC_IND]], <float 2.000000e+00, float 2.000000e+00, float 2.000000e+00, float 2.000000e+00>
; VEC4_INTERL1: br i1 {{.*}}, label %middle.block, label %vector.body
define void @fp_iv_loop2(float %init, float* noalias nocapture %A, i32 %N) #0 {
entry:
%cmp4 = icmp sgt i32 %N, 0
br i1 %cmp4, label %for.body.preheader, label %for.end
for.body.preheader: ; preds = %entry
br label %for.body
for.body: ; preds = %for.body.preheader, %for.body
%indvars.iv = phi i64 [ %indvars.iv.next, %for.body ], [ 0, %for.body.preheader ]
%x.06 = phi float [ %conv1, %for.body ], [ %init, %for.body.preheader ]
%arrayidx = getelementptr inbounds float, float* %A, i64 %indvars.iv
store float %x.06, float* %arrayidx, align 4
%conv1 = fadd fast float %x.06, 5.000000e-01
%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
%lftr.wideiv = trunc i64 %indvars.iv.next to i32
%exitcond = icmp eq i32 %lftr.wideiv, %N
br i1 %exitcond, label %for.end.loopexit, label %for.body
for.end.loopexit: ; preds = %for.body
br label %for.end
for.end: ; preds = %for.end.loopexit, %entry
ret void
}
;void fp_iv_loop3(float init, float * __restrict__ A, float * __restrict__ B, float * __restrict__ C, int N) {
; int i = 0;
; float x = init;
; float y = 0.1;
; for (; i < N; ++i) {
; A[i] = x;
; x += fp_inc;
; y -= 0.5;
; B[i] = x + y;
; C[i] = y;
; }
;}
; VEC4_INTERL1-LABEL: @fp_iv_loop3(
; VEC4_INTERL1: for.body.lr.ph:
; VEC4_INTERL1: [[TMP0:%.*]] = load float, float* @fp_inc, align 4
; VEC4_INTERL1: vector.ph:
; VEC4_INTERL1: [[DOTSPLATINSERT:%.*]] = insertelement <4 x float> undef, float %init, i32 0
; VEC4_INTERL1-NEXT: [[DOTSPLAT:%.*]] = shufflevector <4 x float> [[DOTSPLATINSERT]], <4 x float> undef, <4 x i32> zeroinitializer
; VEC4_INTERL1-NEXT: [[DOTSPLATINSERT5:%.*]] = insertelement <4 x float> undef, float [[TMP0]], i32 0
; VEC4_INTERL1-NEXT: [[DOTSPLAT6:%.*]] = shufflevector <4 x float> [[DOTSPLATINSERT5]], <4 x float> undef, <4 x i32> zeroinitializer
; VEC4_INTERL1-NEXT: [[TMP7:%.*]] = fmul fast <4 x float> [[DOTSPLAT6]], <float 0.000000e+00, float 1.000000e+00, float 2.000000e+00, float 3.000000e+00>
; VEC4_INTERL1-NEXT: [[INDUCTION7:%.*]] = fadd fast <4 x float> [[DOTSPLAT]], [[TMP7]]
; VEC4_INTERL1-NEXT: [[TMP8:%.*]] = fmul fast float [[TMP0]], 4.000000e+00
; VEC4_INTERL1-NEXT: [[DOTSPLATINSERT8:%.*]] = insertelement <4 x float> undef, float [[TMP8]], i32 0
; VEC4_INTERL1-NEXT: [[DOTSPLAT9:%.*]] = shufflevector <4 x float> [[DOTSPLATINSERT8]], <4 x float> undef, <4 x i32> zeroinitializer
; VEC4_INTERL1-NEXT: [[BROADCAST_SPLATINSERT12:%.*]] = insertelement <4 x float> undef, float [[TMP0]], i32 0
; VEC4_INTERL1-NEXT: [[BROADCAST_SPLAT13:%.*]] = shufflevector <4 x float> [[BROADCAST_SPLATINSERT12]], <4 x float> undef, <4 x i32> zeroinitializer
; VEC4_INTERL1-NEXT: br label [[VECTOR_BODY:%.*]]
; VEC4_INTERL1: vector.body:
; VEC4_INTERL1-NEXT: [[INDEX:%.*]] = phi i64 [ 0, %vector.ph ], [ [[INDEX_NEXT:%.*]], %vector.body ]
; VEC4_INTERL1-NEXT: [[VEC_IND:%.*]] = phi <4 x float> [ <float 0x3FB99999A0000000, float 0xBFD99999A0000000, float 0xBFECCCCCC0000000, float 0xBFF6666660000000>, %vector.ph ], [ [[VEC_IND_NEXT:%.*]], %vector.body ]
; VEC4_INTERL1-NEXT: [[VEC_IND10:%.*]] = phi <4 x float> [ [[INDUCTION7]], %vector.ph ], [ [[VEC_IND_NEXT11:%.*]], %vector.body ]
; VEC4_INTERL1-NEXT: [[TMP12:%.*]] = getelementptr inbounds float, float* %A, i64 [[INDEX]]
; VEC4_INTERL1-NEXT: [[TMP13:%.*]] = bitcast float* [[TMP12]] to <4 x float>*
; VEC4_INTERL1-NEXT: store <4 x float> [[VEC_IND10]], <4 x float>* [[TMP13]], align 4
; VEC4_INTERL1-NEXT: [[TMP14:%.*]] = fadd fast <4 x float> [[VEC_IND10]], [[BROADCAST_SPLAT13]]
; VEC4_INTERL1-NEXT: [[TMP15:%.*]] = fadd fast <4 x float> [[VEC_IND]], <float -5.000000e-01, float -5.000000e-01, float -5.000000e-01, float -5.000000e-01>
; VEC4_INTERL1-NEXT: [[TMP16:%.*]] = fadd fast <4 x float> [[TMP15]], [[TMP14]]
; VEC4_INTERL1-NEXT: [[TMP17:%.*]] = getelementptr inbounds float, float* %B, i64 [[INDEX]]
; VEC4_INTERL1-NEXT: [[TMP18:%.*]] = bitcast float* [[TMP17]] to <4 x float>*
; VEC4_INTERL1-NEXT: store <4 x float> [[TMP16]], <4 x float>* [[TMP18]], align 4
; VEC4_INTERL1-NEXT: [[TMP19:%.*]] = getelementptr inbounds float, float* %C, i64 [[INDEX]]
; VEC4_INTERL1-NEXT: [[TMP20:%.*]] = bitcast float* [[TMP19]] to <4 x float>*
; VEC4_INTERL1-NEXT: store <4 x float> [[TMP15]], <4 x float>* [[TMP20]], align 4
; VEC4_INTERL1-NEXT: [[INDEX_NEXT]] = add i64 [[INDEX]], 4
; VEC4_INTERL1-NEXT: [[VEC_IND_NEXT]] = fadd fast <4 x float> [[VEC_IND]], <float -2.000000e+00, float -2.000000e+00, float -2.000000e+00, float -2.000000e+00>
; VEC4_INTERL1-NEXT: [[VEC_IND_NEXT11]] = fadd fast <4 x float> [[VEC_IND10]], [[DOTSPLAT9]]
; VEC4_INTERL1: br i1 {{.*}}, label %middle.block, label %vector.body
define void @fp_iv_loop3(float %init, float* noalias nocapture %A, float* noalias nocapture %B, float* noalias nocapture %C, i32 %N) #1 {
entry:
%cmp9 = icmp sgt i32 %N, 0
br i1 %cmp9, label %for.body.lr.ph, label %for.end
for.body.lr.ph: ; preds = %entry
%0 = load float, float* @fp_inc, align 4
br label %for.body
for.body: ; preds = %for.body, %for.body.lr.ph
%indvars.iv = phi i64 [ 0, %for.body.lr.ph ], [ %indvars.iv.next, %for.body ]
%y.012 = phi float [ 0x3FB99999A0000000, %for.body.lr.ph ], [ %conv1, %for.body ]
%x.011 = phi float [ %init, %for.body.lr.ph ], [ %add, %for.body ]
%arrayidx = getelementptr inbounds float, float* %A, i64 %indvars.iv
store float %x.011, float* %arrayidx, align 4
%add = fadd fast float %x.011, %0
%conv1 = fadd fast float %y.012, -5.000000e-01
%add2 = fadd fast float %conv1, %add
%arrayidx4 = getelementptr inbounds float, float* %B, i64 %indvars.iv
store float %add2, float* %arrayidx4, align 4
%arrayidx6 = getelementptr inbounds float, float* %C, i64 %indvars.iv
store float %conv1, float* %arrayidx6, align 4
%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
%lftr.wideiv = trunc i64 %indvars.iv.next to i32
%exitcond = icmp eq i32 %lftr.wideiv, %N
br i1 %exitcond, label %for.end.loopexit, label %for.body
for.end.loopexit:
br label %for.end
for.end:
ret void
}
; Start and step values are constants. There is no 'fmul' operation in this case
;void fp_iv_loop4(float * __restrict__ A, int N) {
; float x = 1.0;
; for (int i=0; i < N; ++i) {
; A[i] = x;
; x += 0.5;
; }
;}
; VEC4_INTERL1-LABEL: @fp_iv_loop4(
; VEC4_INTERL1: vector.ph:
; VEC4_INTERL1: br label %vector.body
; VEC4_INTERL1: vector.body:
; VEC4_INTERL1-NEXT: [[INDEX:%.*]] = phi i64 [ 0, %vector.ph ], [ [[INDEX_NEXT:%.*]], %vector.body ]
; VEC4_INTERL1-NEXT: [[VEC_IND:%.*]] = phi <4 x float> [ <float 1.000000e+00, float 1.500000e+00, float 2.000000e+00, float 2.500000e+00>, %vector.ph ], [ [[VEC_IND_NEXT:%.*]], %vector.body ]
; VEC4_INTERL1-NEXT: [[TMP7:%.*]] = getelementptr inbounds float, float* %A, i64 [[INDEX]]
; VEC4_INTERL1-NEXT: [[TMP8:%.*]] = bitcast float* [[TMP7]] to <4 x float>*
; VEC4_INTERL1-NEXT: store <4 x float> [[VEC_IND]], <4 x float>* [[TMP8]], align 4
; VEC4_INTERL1-NEXT: [[INDEX_NEXT]] = add i64 [[INDEX]], 4
; VEC4_INTERL1-NEXT: [[VEC_IND_NEXT]] = fadd fast <4 x float> [[VEC_IND]], <float 2.000000e+00, float 2.000000e+00, float 2.000000e+00, float 2.000000e+00>
; VEC4_INTERL1: br i1 {{.*}}, label %middle.block, label %vector.body
define void @fp_iv_loop4(float* noalias nocapture %A, i32 %N) {
entry:
%cmp4 = icmp sgt i32 %N, 0
br i1 %cmp4, label %for.body.preheader, label %for.end
for.body.preheader: ; preds = %entry
br label %for.body
for.body: ; preds = %for.body.preheader, %for.body
%indvars.iv = phi i64 [ %indvars.iv.next, %for.body ], [ 0, %for.body.preheader ]
%x.06 = phi float [ %conv1, %for.body ], [ 1.000000e+00, %for.body.preheader ]
%arrayidx = getelementptr inbounds float, float* %A, i64 %indvars.iv
store float %x.06, float* %arrayidx, align 4
%conv1 = fadd fast float %x.06, 5.000000e-01
%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
%lftr.wideiv = trunc i64 %indvars.iv.next to i32
%exitcond = icmp eq i32 %lftr.wideiv, %N
br i1 %exitcond, label %for.end.loopexit, label %for.body
for.end.loopexit: ; preds = %for.body
br label %for.end
for.end: ; preds = %for.end.loopexit, %entry
ret void
}
; VEC2_INTERL1_PRED_STORE-LABEL: @non_primary_iv_float_scalar(
; VEC2_INTERL1_PRED_STORE: vector.body:
; VEC2_INTERL1_PRED_STORE-NEXT: [[INDEX:%.*]] = phi i64 [ 0, %vector.ph ], [ [[INDEX_NEXT:%.*]], %[[PRED_STORE_CONTINUE7:.*]] ]
; VEC2_INTERL1_PRED_STORE-NEXT: [[TMP1:%.*]] = sitofp i64 [[INDEX]] to float
; VEC2_INTERL1_PRED_STORE-NEXT: [[TMP2:%.*]] = getelementptr inbounds float, float* %A, i64 [[INDEX]]
; VEC2_INTERL1_PRED_STORE-NEXT: [[TMP3:%.*]] = bitcast float* [[TMP2]] to <2 x float>*
; VEC2_INTERL1_PRED_STORE-NEXT: [[WIDE_LOAD:%.*]] = load <2 x float>, <2 x float>* [[TMP3]], align 4
; VEC2_INTERL1_PRED_STORE-NEXT: [[TMP4:%.*]] = fcmp fast oeq <2 x float> [[WIDE_LOAD]], zeroinitializer
; VEC2_INTERL1_PRED_STORE-NEXT: [[TMP5:%.*]] = extractelement <2 x i1> [[TMP4]], i32 0
; VEC2_INTERL1_PRED_STORE-NEXT: br i1 [[TMP5]], label %[[PRED_STORE_IF:.*]], label %[[PRED_STORE_CONTINUE:.*]]
; VEC2_INTERL1_PRED_STORE: [[PRED_STORE_IF]]:
; VEC2_INTERL1_PRED_STORE-NEXT: store float [[TMP1]], float* [[TMP2]], align 4
; VEC2_INTERL1_PRED_STORE-NEXT: br label %[[PRED_STORE_CONTINUE]]
; VEC2_INTERL1_PRED_STORE: [[PRED_STORE_CONTINUE]]:
; VEC2_INTERL1_PRED_STORE-NEXT: [[TMP8:%.*]] = extractelement <2 x i1> [[TMP4]], i32 1
; VEC2_INTERL1_PRED_STORE-NEXT: br i1 [[TMP8]], label %[[PRED_STORE_IF6:.*]], label %[[PRED_STORE_CONTINUE7]]
; VEC2_INTERL1_PRED_STORE: [[PRED_STORE_IF6]]:
; VEC2_INTERL1_PRED_STORE-NEXT: [[TMP9:%.*]] = fadd fast float [[TMP1]], 1.000000e+00
; VEC2_INTERL1_PRED_STORE-NEXT: [[TMP10:%.*]] = or i64 [[INDEX]], 1
; VEC2_INTERL1_PRED_STORE-NEXT: [[TMP11:%.*]] = getelementptr inbounds float, float* %A, i64 [[TMP10]]
; VEC2_INTERL1_PRED_STORE-NEXT: store float [[TMP9]], float* [[TMP11]], align 4
; VEC2_INTERL1_PRED_STORE-NEXT: br label %[[PRED_STORE_CONTINUE7]]
; VEC2_INTERL1_PRED_STORE: [[PRED_STORE_CONTINUE7]]:
; VEC2_INTERL1_PRED_STORE-NEXT: [[INDEX_NEXT]] = add i64 [[INDEX]], 2
; VEC2_INTERL1_PRED_STORE: br i1 {{.*}}, label %middle.block, label %vector.body
define void @non_primary_iv_float_scalar(float* %A, i64 %N) {
entry:
br label %for.body
for.body:
%i = phi i64 [ %i.next, %for.inc ], [ 0, %entry ]
%j = phi float [ %j.next, %for.inc ], [ 0.0, %entry ]
%tmp0 = getelementptr inbounds float, float* %A, i64 %i
%tmp1 = load float, float* %tmp0, align 4
%tmp2 = fcmp fast oeq float %tmp1, 0.0
br i1 %tmp2, label %if.pred, label %for.inc
if.pred:
store float %j, float* %tmp0, align 4
br label %for.inc
for.inc:
%i.next = add nuw nsw i64 %i, 1
%j.next = fadd fast float %j, 1.0
%cond = icmp slt i64 %i.next, %N
br i1 %cond, label %for.body, label %for.end
for.end:
ret void
}
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