1; RUN: opt -basicaa -loop-vectorize -enable-mem-access-versioning -force-vector-width=2 -force-vector-interleave=1 < %s -S | FileCheck %s
2
3target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
4
5; CHECK-LABEL: test
6define void @test(i32* noalias %A, i64 %AStride,
7                  i32* noalias %B, i32 %BStride,
8                  i32* noalias %C, i64 %CStride, i32 %N) {
9entry:
10  %cmp13 = icmp eq i32 %N, 0
11  br i1 %cmp13, label %for.end, label %for.body.preheader
12
13; CHECK-DAG: icmp ne i64 %AStride, 1
14; CHECK-DAG: icmp ne i32 %BStride, 1
15; CHECK-DAG: icmp ne i64 %CStride, 1
16; CHECK: or
17; CHECK: or
18; CHECK: br
19
20; CHECK: vector.body
21; CHECK: load <2 x i32>
22
23for.body.preheader:
24  br label %for.body
25
26for.body:
27  %indvars.iv = phi i64 [ %indvars.iv.next, %for.body ], [ 0, %for.body.preheader ]
28  %iv.trunc = trunc i64 %indvars.iv to i32
29  %mul = mul i32 %iv.trunc, %BStride
30  %mul64 = zext i32 %mul to i64
31  %arrayidx = getelementptr inbounds i32* %B, i64 %mul64
32  %0 = load i32* %arrayidx, align 4
33  %mul2 = mul nsw i64 %indvars.iv, %CStride
34  %arrayidx3 = getelementptr inbounds i32* %C, i64 %mul2
35  %1 = load i32* %arrayidx3, align 4
36  %mul4 = mul nsw i32 %1, %0
37  %mul3 = mul nsw i64 %indvars.iv, %AStride
38  %arrayidx7 = getelementptr inbounds i32* %A, i64 %mul3
39  store i32 %mul4, i32* %arrayidx7, align 4
40  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
41  %lftr.wideiv = trunc i64 %indvars.iv.next to i32
42  %exitcond = icmp eq i32 %lftr.wideiv, %N
43  br i1 %exitcond, label %for.end.loopexit, label %for.body
44
45for.end.loopexit:
46  br label %for.end
47
48for.end:
49  ret void
50}
51
52; We used to crash on this function because we removed the fptosi cast when
53; replacing the symbolic stride '%conv'.
54; PR18480
55
56; CHECK-LABEL: fn1
57; CHECK: load <2 x double>
58
59define void @fn1(double* noalias %x, double* noalias %c, double %a) {
60entry:
61  %conv = fptosi double %a to i32
62  %cmp8 = icmp sgt i32 %conv, 0
63  br i1 %cmp8, label %for.body.preheader, label %for.end
64
65for.body.preheader:
66  br label %for.body
67
68for.body:
69  %indvars.iv = phi i64 [ %indvars.iv.next, %for.body ], [ 0, %for.body.preheader ]
70  %0 = trunc i64 %indvars.iv to i32
71  %mul = mul nsw i32 %0, %conv
72  %idxprom = sext i32 %mul to i64
73  %arrayidx = getelementptr inbounds double* %x, i64 %idxprom
74  %1 = load double* %arrayidx, align 8
75  %arrayidx3 = getelementptr inbounds double* %c, i64 %indvars.iv
76  store double %1, double* %arrayidx3, align 8
77  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
78  %lftr.wideiv = trunc i64 %indvars.iv.next to i32
79  %exitcond = icmp eq i32 %lftr.wideiv, %conv
80  br i1 %exitcond, label %for.end.loopexit, label %for.body
81
82for.end.loopexit:
83  br label %for.end
84
85for.end:
86  ret void
87}
88