1; RUN: opt %loadPolly -polly-codegen -S < %s | FileCheck %s --check-prefix=SCOPES
2;
3; Check that we create alias scopes that indicate the accesses to A, B and C cannot alias in any way.
4;
5; SCOPES-LABEL: polly.stmt.for.body:
6; SCOPES:      %[[BIdx:[._a-zA-Z0-9]*]] = getelementptr{{.*}} i32* %B, i64 %polly.indvar
7; SCOPES:      load i32, i32* %[[BIdx]], align 4, !alias.scope !0, !noalias !3
8; SCOPES:      %[[CIdx:[._a-zA-Z0-9]*]] = getelementptr{{.*}} float* %C, i64 %polly.indvar
9; SCOPES:      load float, float* %[[CIdx]], align 4, !alias.scope !6, !noalias !7
10; SCOPES:      %[[AIdx:[._a-zA-Z0-9]*]] = getelementptr{{.*}} i32* %A, i64 %polly.indvar
11; SCOPES:      store i32 %{{[._a-zA-Z0-9]*}}, i32* %[[AIdx]], align 4, !alias.scope !8, !noalias !9
12;
13; SCOPES: !0 = !{!1}
14; SCOPES: !1 = distinct !{!1, !2, !"polly.alias.scope.MemRef_B"}
15; SCOPES: !2 = distinct !{!2, !"polly.alias.scope.domain"}
16; SCOPES: !3 = !{!4, !5}
17; SCOPES: !4 = distinct !{!4, !2, !"polly.alias.scope.MemRef_C"}
18; SCOPES: !5 = distinct !{!5, !2, !"polly.alias.scope.MemRef_A"}
19; SCOPES: !6 = !{!4}
20; SCOPES: !7 = !{!1, !5}
21; SCOPES: !8 = !{!5}
22; SCOPES: !9 = !{!1, !4}
23;
24;    void jd(int *A, int *B, float *C) {
25;      for (int i = 0; i < 1024; i++)
26;        A[i] = B[i] + C[i];
27;    }
28;
29target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
30
31define void @jd(i32* %A, i32* %B, float* %C) {
32entry:
33  br label %for.cond
34
35for.cond:                                         ; preds = %for.inc, %entry
36  %indvars.iv = phi i64 [ %indvars.iv.next, %for.inc ], [ 0, %entry ]
37  %exitcond = icmp ne i64 %indvars.iv, 1024
38  br i1 %exitcond, label %for.body, label %for.end
39
40for.body:                                         ; preds = %for.cond
41  %arrayidx = getelementptr inbounds i32, i32* %B, i64 %indvars.iv
42  %tmp = load i32, i32* %arrayidx, align 4
43  %conv = sitofp i32 %tmp to float
44  %arrayidx2 = getelementptr inbounds float, float* %C, i64 %indvars.iv
45  %tmp1 = load float, float* %arrayidx2, align 4
46  %add = fadd fast float %conv, %tmp1
47  %conv3 = fptosi float %add to i32
48  %arrayidx5 = getelementptr inbounds i32, i32* %A, i64 %indvars.iv
49  store i32 %conv3, i32* %arrayidx5, align 4
50  br label %for.inc
51
52for.inc:                                          ; preds = %for.body
53  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
54  br label %for.cond
55
56for.end:                                          ; preds = %for.cond
57  ret void
58}
59