1; RUN: opt %loadPolly -polly-delicm -analyze -pass-remarks-missed=polly-delicm < %s 2>&1 | FileCheck %s
2;
3;    void func(double *A) {
4;      for (int j = 0; j < 2; j += 1) { /* outer */
5;        memset(A[j], 0, sizeof(double));
6;        double phi = 0.0;
7;        for (int i = 0; i < 4; i += 1) /* reduction */
8;          phi += 4.2;
9;        if (phi >= 0.0)
10;          A[j] = phi;
11;      }
12;    }
13;
14
15define void @func(double* 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      %phi.cmp = fcmp ogt double %phi, 0.0
51      br i1 %phi.cmp , label %reduction.exit_true, label %reduction.exit_false
52
53    reduction.exit_true:
54      %A_idx = getelementptr inbounds double, double* %A, i32 %j
55      store double %phi, double* %A_idx
56      br label %outer.inc
57
58    reduction.exit_false:
59      br label %outer.inc
60
61
62outer.inc:
63  %j.inc = add nuw nsw i32 %j, 1
64  br label %outer.for
65
66outer.exit:
67  br label %return
68
69return:
70  ret void
71}
72
73
74; CHECK: Skipped possible mapping target because it is not an unconditional overwrite
75