1; RUN: opt %loadPolly -polly-detect -analyze < %s | FileCheck %s
2
3; void f(long A[], long N) {
4;   long i;
5;   if (true)
6;     for (i = 0; i < N; ++i)
7;       A[i] = i;
8;   else
9;     for (j = 0; j < N; ++j)
10;        A[j] = j;
11; }
12
13target 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"
14
15define void @f(i64* %A, i64 %N) nounwind {
16entry:
17  fence seq_cst
18  br i1 true, label %next, label %next2
19
20next2:
21  br i1 true, label %for.j, label %return
22
23for.j:
24  %indvar2 = phi i64 [ 0, %next2], [ %indvar2.next2, %for.j]
25  %scevgep2 = getelementptr i64, i64* %A, i64 %indvar2
26  store i64 %indvar2, i64* %scevgep2
27  %indvar2.next2 = add nsw i64 %indvar2, 1
28  %exitcond2 = icmp eq i64 %indvar2.next2, %N
29  br i1 %exitcond2, label %return, label %for.j
30
31next:
32  br i1 true, label %for.i, label %return
33
34for.i:
35  %indvar = phi i64 [ 0, %next], [ %indvar.next, %for.i ]
36  %scevgep = getelementptr i64, i64* %A, i64 %indvar
37  store i64 %indvar, i64* %scevgep
38  %indvar.next = add nsw i64 %indvar, 1
39  %exitcond = icmp eq i64 %indvar.next, %N
40  br i1 %exitcond, label %return, label %for.i
41
42return:
43  fence seq_cst
44  ret void
45}
46
47; CHECK: Valid Region for Scop: next => return
48; CHECK: Valid Region for Scop: next2 => return
49