1; RUN: opt %loadPolly -polly-delicm -analyze < %s | FileCheck %s
2;
3;    void func(float *A) {
4;      for (int j = 0; j < 2; j += 1) { /* outer */
5;        double phi = 0.0;
6;        for (int i = 0; i < 4; i += 1) /* reduction */
7;          phi += 4.2;
8;        A[j] = fsomeval;
9;      }
10;    }
11;
12; Check that %fphi is not mapped to A[j] because it is double-sized,
13; but A[j] stores only floats.
14;
15define void @func(float* noalias nonnull %A) {
16entry:
17  br label %outer.preheader
18
19outer.preheader:
20  br label %outer.for
21
22outer.for:
23  %j = phi i32 [0, %outer.preheader], [%j.inc, %outer.inc]
24  %j.cmp = icmp slt i32 %j, 2
25  br i1 %j.cmp, label %reduction.preheader, label %outer.exit
26
27
28    reduction.preheader:
29      br label %reduction.for
30
31    reduction.for:
32      %i = phi i32 [0, %reduction.preheader], [%i.inc, %reduction.inc]
33      %phi = phi double [0.0, %reduction.preheader], [%add, %reduction.inc]
34      %i.cmp = icmp slt i32 %i, 4
35      br i1 %i.cmp, label %body, label %reduction.exit
36
37
38
39        body:
40          %add = fadd double %phi, 4.2
41          br label %reduction.inc
42
43
44
45    reduction.inc:
46      %i.inc = add nuw nsw i32 %i, 1
47      br label %reduction.for
48
49    reduction.exit:
50      %A_idx = getelementptr inbounds float, float* %A, i32 %j
51      %fphi = fptrunc double %phi to float
52      store float %fphi, float* %A_idx
53      br label %outer.inc
54
55
56
57outer.inc:
58  %j.inc = add nuw nsw i32 %j, 1
59  br label %outer.for
60
61outer.exit:
62  br label %return
63
64return:
65  ret void
66}
67
68
69; CHECK: Statistics {
70; CHECK:     Compatible overwrites: 1
71; CHECK: }
72; CHECK: No modification has been made
73