1 ; RUN: opt < %s -loop-vectorize -force-vector-interleave=1 -force-target-supports-scalable-vectors=true -dce -instcombine -S -scalable-vectorization=on | FileCheck %s
2 ; RUN: opt < %s -loop-vectorize -force-vector-interleave=1 -force-target-supports-scalable-vectors=true -dce -instcombine -S -scalable-vectorization=preferred | FileCheck %s
4 target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
7 ; CHECK: store <8 x i32>
9 define void @test1(i32* nocapture %a, i32 %n) #0 {
11 %cmp4 = icmp sgt i32 %n, 0
12 br i1 %cmp4, label %for.body, label %for.end
14 for.body: ; preds = %entry, %for.body
15 %indvars.iv = phi i64 [ %indvars.iv.next, %for.body ], [ 0, %entry ]
16 %arrayidx = getelementptr inbounds i32, i32* %a, i64 %indvars.iv
17 store i32 42, i32* %arrayidx, align 4
18 %indvars.iv.next = add i64 %indvars.iv, 1
19 %lftr.wideiv = trunc i64 %indvars.iv.next to i32
20 %exitcond = icmp eq i32 %lftr.wideiv, %n
21 br i1 %exitcond, label %for.end, label %for.body, !llvm.loop !0
23 for.end: ; preds = %for.body, %entry
27 ; CHECK-LABEL: @test2(
28 ; CHECK: store <vscale x 8 x i32>
30 define void @test2(i32* nocapture %a, i32 %n) #0 {
32 %cmp4 = icmp sgt i32 %n, 0
33 br i1 %cmp4, label %for.body, label %for.end
35 for.body: ; preds = %entry, %for.body
36 %indvars.iv = phi i64 [ %indvars.iv.next, %for.body ], [ 0, %entry ]
37 %arrayidx = getelementptr inbounds i32, i32* %a, i64 %indvars.iv
38 store i32 42, i32* %arrayidx, align 4
39 %indvars.iv.next = add i64 %indvars.iv, 1
40 %lftr.wideiv = trunc i64 %indvars.iv.next to i32
41 %exitcond = icmp eq i32 %lftr.wideiv, %n
42 br i1 %exitcond, label %for.end, label %for.body, !llvm.loop !2
44 for.end: ; preds = %for.body, %entry
48 ; CHECK-LABEL: @test3(
49 ; CHECK: store <8 x i32>
51 define void @test3(i32* nocapture %a, i32 %n) #0 {
53 %cmp4 = icmp sgt i32 %n, 0
54 br i1 %cmp4, label %for.body, label %for.end
56 for.body: ; preds = %entry, %for.body
57 %indvars.iv = phi i64 [ %indvars.iv.next, %for.body ], [ 0, %entry ]
58 %arrayidx = getelementptr inbounds i32, i32* %a, i64 %indvars.iv
59 store i32 42, i32* %arrayidx, align 4
60 %indvars.iv.next = add i64 %indvars.iv, 1
61 %lftr.wideiv = trunc i64 %indvars.iv.next to i32
62 %exitcond = icmp eq i32 %lftr.wideiv, %n
63 br i1 %exitcond, label %for.end, label %for.body, !llvm.loop !4
65 for.end: ; preds = %for.body, %entry
69 ; Test that when only the width property is specified, and not the scalable.enable flag,
70 ; that the hint defaults to 'scalable.enable = false'.
72 ; CHECK-LABEL: @test4(
73 ; CHECK: store <8 x i32>
75 define void @test4(i32* nocapture %a, i32 %n) #0 {
77 %cmp4 = icmp sgt i32 %n, 0
78 br i1 %cmp4, label %for.body, label %for.end
80 for.body: ; preds = %entry, %for.body
81 %indvars.iv = phi i64 [ %indvars.iv.next, %for.body ], [ 0, %entry ]
82 %arrayidx = getelementptr inbounds i32, i32* %a, i64 %indvars.iv
83 store i32 42, i32* %arrayidx, align 4
84 %indvars.iv.next = add i64 %indvars.iv, 1
85 %lftr.wideiv = trunc i64 %indvars.iv.next to i32
86 %exitcond = icmp eq i32 %lftr.wideiv, %n
87 br i1 %exitcond, label %for.end, label %for.body, !llvm.loop !6
89 for.end: ; preds = %for.body, %entry
93 attributes #0 = { nounwind uwtable "less-precise-fpmad"="false" "frame-pointer"="none" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "unsafe-fp-math"="false" "use-soft-float"="false" }
96 !1 = !{!"llvm.loop.vectorize.width", i32 8}
98 !3 = !{!"llvm.loop.vectorize.scalable.enable", i32 1}
100 !5 = !{!"llvm.loop.vectorize.scalable.enable", i32 0}
102 !7 = !{!"llvm.loop.vectorize.width", i32 8}