1; RUN: opt < %s -aa-pipeline=scev-aa -passes=loop-vectorize,print-alias-sets -S -o - 2>&1 | FileCheck %s 2target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" 3 4; PR25281 5; Just check that we don't crash on this test. 6; CHECK-LABEL: @foo 7define void @foo(ptr noalias nocapture readonly %in, ptr noalias nocapture readonly %isCompressed, ptr noalias nocapture readonly %out) { 8entry_block: 9 %in_0 = load ptr, ptr %in 10 %isCompressed_0 = load i32, ptr %isCompressed 11 %tmp2 = getelementptr ptr, ptr %in, i32 1 12 %in_1 = load ptr, ptr %tmp2 13 %tmp3 = getelementptr i32, ptr %isCompressed, i32 1 14 %isCompressed_1 = load i32, ptr %tmp3 15 br label %for_each_frames 16 17for_each_frames: 18 %frameIndex = phi i32 [ 0, %entry_block ], [ %nextFrameIndex, %for_each_frames_end ] 19 %nextFrameIndex = add nuw nsw i32 %frameIndex, 2 20 br label %for_each_channel 21 22for_each_channel: 23 %channelIndex = phi i32 [ 0, %for_each_frames ], [ %nextChannelIndex, %for_each_channel ] 24 %nextChannelIndex = add nuw nsw i32 %channelIndex, 1 25 %tmp4 = add i32 %frameIndex, %channelIndex 26 %tmp5 = xor i32 %isCompressed_0, 1 27 %tmp6 = mul i32 %frameIndex, %tmp5 28 %offset0 = add i32 %tmp6, %channelIndex 29 %tmp7 = getelementptr float, ptr %in_0, i32 %offset0 30 %in_0_index = load float, ptr %tmp7, align 4 31 %tmp8 = xor i32 %isCompressed_1, 1 32 %tmp9 = mul i32 %frameIndex, %tmp8 33 %offset1 = add i32 %tmp9, %channelIndex 34 %tmp10 = getelementptr float, ptr %in_1, i32 %offset1 35 %in_1_index = load float, ptr %tmp10, align 4 36 %tmp11 = fadd float %in_0_index, %in_1_index 37 %tmp12 = getelementptr float, ptr %out, i32 %tmp4 38 store float %tmp11, ptr %tmp12, align 4 39 %tmp13 = icmp eq i32 %nextChannelIndex, 2 40 br i1 %tmp13, label %for_each_frames_end, label %for_each_channel 41 42for_each_frames_end: 43 %tmp14 = icmp eq i32 %nextFrameIndex, 512 44 br i1 %tmp14, label %return, label %for_each_frames 45 46return: 47 ret void 48} 49