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| ; RUN: opt < %s -scev-aa -loop-vectorize -print-alias-sets -S -o - 2>&1 | FileCheck %s
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
; PR25281
; Just check that we don't crash on this test.
; CHECK-LABEL: @foo
define void @foo(float** noalias nocapture readonly %in, i32* noalias nocapture readonly %isCompressed, float* noalias nocapture readonly %out) {
entry_block:
%tmp = getelementptr float*, float** %in, i32 0
%in_0 = load float*, float** %tmp, !alias.scope !0
%tmp1 = getelementptr i32, i32* %isCompressed, i32 0
%isCompressed_0 = load i32, i32* %tmp1, !alias.scope !1
%tmp2 = getelementptr float*, float** %in, i32 1
%in_1 = load float*, float** %tmp2, !alias.scope !2
%tmp3 = getelementptr i32, i32* %isCompressed, i32 1
%isCompressed_1 = load i32, i32* %tmp3, !alias.scope !3
br label %for_each_frames
for_each_frames:
%frameIndex = phi i32 [ 0, %entry_block ], [ %nextFrameIndex, %for_each_frames_end ]
%nextFrameIndex = add nuw nsw i32 %frameIndex, 2
br label %for_each_channel
for_each_channel:
%channelIndex = phi i32 [ 0, %for_each_frames ], [ %nextChannelIndex, %for_each_channel ]
%nextChannelIndex = add nuw nsw i32 %channelIndex, 1
%tmp4 = add i32 %frameIndex, %channelIndex
%tmp5 = xor i32 %isCompressed_0, 1
%tmp6 = mul i32 %frameIndex, %tmp5
%offset0 = add i32 %tmp6, %channelIndex
%tmp7 = getelementptr float, float* %in_0, i32 %offset0
%in_0_index = load float, float* %tmp7, align 4, !alias.scope !4
%tmp8 = xor i32 %isCompressed_1, 1
%tmp9 = mul i32 %frameIndex, %tmp8
%offset1 = add i32 %tmp9, %channelIndex
%tmp10 = getelementptr float, float* %in_1, i32 %offset1
%in_1_index = load float, float* %tmp10, align 4, !alias.scope !5
%tmp11 = fadd float %in_0_index, %in_1_index
%tmp12 = getelementptr float, float* %out, i32 %tmp4
store float %tmp11, float* %tmp12, align 4, !alias.noalias !6
%tmp13 = icmp eq i32 %nextChannelIndex, 2
br i1 %tmp13, label %for_each_frames_end, label %for_each_channel
for_each_frames_end:
%tmp14 = icmp eq i32 %nextFrameIndex, 512
br i1 %tmp14, label %return, label %for_each_frames
return:
ret void
}
!0 = distinct !{!0}
!1 = distinct !{!1, !0}
!2 = distinct !{!2, !0}
!3 = distinct !{!3, !0}
!4 = distinct !{!4, !0}
!5 = distinct !{!5, !0}
!6 = !{!2, !3, !4, !5, !1}
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