xref: /llvm-project/polly/test/CodeGen/simple_non_single_entry.ll (revision e1f056f692d869708c1898d9d65a69ac5584a0ed)
1; RUN: opt %loadNPMPolly -passes=polly-codegen -S < %s | FileCheck %s -check-prefix=CHECK-CODE
2
3; void f(long A[], long N) {
4;   long i;
5;
6;  if (true){
7;    i = 0;
8;    goto next;
9;  }else{
10;    i = 1;
11;    goto next;
12; }
13;
14; next:
15;  if (true)
16;    goto for.i;
17;  else
18;    goto for.i;
19;
20; for.i:
21;   for (i = 0; i < N; ++i)
22;     A[i] = i;
23; }
24
25target 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"
26
27define void @f(ptr %A, i64 %N) nounwind {
28entry:
29  fence seq_cst
30  br i1 true, label %then1, label %else1
31
32then1:
33  br label %next
34
35else1:
36  br label %next
37
38next:
39  %sg = getelementptr i64, ptr %A, i64 42
40  store i64 undef, ptr %sg
41  br i1 true, label %then, label %else
42
43then:
44  br label %for.i.head
45
46else:
47  br label %for.i.head
48
49for.i.head:
50  br label %for.i.head1
51
52for.i.head1:
53  br label %for.i
54
55for.i:
56  %indvar = phi i64 [ 0, %for.i.head1], [ %indvar.next, %for.i ]
57  fence seq_cst
58  %scevgep = getelementptr i64, ptr %A, i64 %indvar
59  store i64 %indvar, ptr %scevgep
60  %indvar.next = add nsw i64 %indvar, 1
61  %exitcond = icmp eq i64 %indvar.next, %N
62  br i1 %exitcond, label %return, label %for.i
63
64return:
65  fence seq_cst
66  ret void
67}
68
69; CHECK-CODE: polly.split_new_and_old
70; CHECK-CODE: polly.merge_new_and_old
71