xref: /llvm-project/llvm/test/Transforms/LoopVectorize/AArch64/pr33053.ll (revision 7d7577256b76e4293f455b8093504d5f7044ab4b)
1; RUN: opt -S -mtriple=aarch64 -passes=loop-vectorize -force-vector-width=2 < %s | FileCheck %s
2target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128"
3target triple = "aarch64--linux-gnu"
4
5@b = common local_unnamed_addr global i32 0, align 4
6@a = common local_unnamed_addr global ptr null, align 8
7
8define i32 @fn1() local_unnamed_addr #0 {
9; We expect the backend to expand all reductions.
10; CHECK: @llvm.vector.reduce
11entry:
12  %0 = load i32, ptr @b, align 4, !tbaa !1
13  %cmp40 = icmp sgt i32 %0, 0
14  br i1 %cmp40, label %for.body.lr.ph, label %for.end
15
16for.body.lr.ph:                                   ; preds = %entry
17  %1 = load ptr, ptr @a, align 8, !tbaa !5
18  %2 = load i32, ptr @b, align 4, !tbaa !1
19  %3 = sext i32 %2 to i64
20  br label %for.body
21
22for.body:                                         ; preds = %for.body.lr.ph, %for.body
23  %indvars.iv = phi i64 [ 0, %for.body.lr.ph ], [ %indvars.iv.next, %for.body ]
24  %d.043 = phi i16 [ undef, %for.body.lr.ph ], [ %.sink28, %for.body ]
25  %c.042 = phi i16 [ undef, %for.body.lr.ph ], [ %c.0., %for.body ]
26  %arrayidx = getelementptr inbounds i16, ptr %1, i64 %indvars.iv
27  %4 = load i16, ptr %arrayidx, align 2, !tbaa !7
28  %cmp2 = icmp sgt i16 %c.042, %4
29  %c.0. = select i1 %cmp2, i16 %c.042, i16 %4
30  %cmp13 = icmp slt i16 %d.043, %4
31  %.sink28 = select i1 %cmp13, i16 %d.043, i16 %4
32  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
33  %cmp = icmp slt i64 %indvars.iv.next, %3
34  br i1 %cmp, label %for.body, label %for.end
35
36for.end:                                          ; preds = %for.body, %entry
37  %c.0.lcssa = phi i16 [ undef, %entry ], [ %c.0., %for.body ]
38  %d.0.lcssa = phi i16 [ undef, %entry ], [ %.sink28, %for.body ]
39  %cmp26 = icmp sgt i16 %c.0.lcssa, %d.0.lcssa
40  %conv27 = zext i1 %cmp26 to i32
41  ret i32 %conv27
42}
43
44attributes #0 = { norecurse nounwind readonly "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "less-precise-fpmad"="false" "frame-pointer"="all" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="generic" "target-features"="+neon" "unsafe-fp-math"="false" "use-soft-float"="false" }
45!llvm.ident = !{!0}
46
47!0 = !{!"clang"}
48!1 = !{!2, !2, i64 0}
49!2 = !{!"int", !3, i64 0}
50!3 = !{!"omnipotent char", !4, i64 0}
51!4 = !{!"Simple C/C++ TBAA"}
52!5 = !{!6, !6, i64 0}
53!6 = !{!"any pointer", !3, i64 0}
54!7 = !{!8, !8, i64 0}
55!8 = !{!"short", !3, i64 0}
56