xref: /llvm-project/polly/test/ScopDetect/simple_loop_with_param_2.ll (revision e1f056f692d869708c1898d9d65a69ac5584a0ed)
1; RUN: opt %loadNPMPolly -aa-pipeline=basic-aa '-passes=print<polly-detect>' -disable-output < %s 2>&1 | FileCheck %s
2
3; void f(long A[], int N, int *init_ptr) {
4;   long i, j;
5;
6;   for (i = 0; i < N; ++i) {
7;     init = *init_ptr;
8;     for (i = 0; i < N; ++i) {
9;       A[i] = init + 2;
10;     }
11;   }
12; }
13
14target 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"
15
16define void @f(ptr noalias %A, i64 %N, ptr noalias %init_ptr) nounwind {
17entry:
18  br label %for.i
19
20for.i:
21  %indvar.i = phi i64 [ 0, %entry ], [ %indvar.i.next, %for.i.end ]
22  %indvar.i.next = add nsw i64 %indvar.i, 1
23  br label %entry.next
24
25entry.next:
26  %init = load i64, ptr %init_ptr
27  br label %for.j
28
29for.j:
30  %indvar.j = phi i64 [ 0, %entry.next ], [ %indvar.j.next, %for.j ]
31  %init_plus_two = add i64 %init, 2
32  %scevgep = getelementptr i64, ptr %A, i64 %indvar.j
33  store i64 %init_plus_two, ptr %scevgep
34  %indvar.j.next = add nsw i64 %indvar.j, 1
35  %exitcond.j = icmp eq i64 %indvar.j.next, %N
36  br i1 %exitcond.j, label %for.i.end, label %for.j
37
38for.i.end:
39  %exitcond.i = icmp eq i64 %indvar.i.next, %N
40  br i1 %exitcond.i, label %return, label %for.i
41
42return:
43  ret void
44}
45
46; CHECK: Valid Region for Scop: for.i => return
47