1; RUN: opt %loadPolly -polly-scops -analyze < %s | FileCheck %s
2
3; void f(int a[], int N, unsigned P) {
4;   int i;
5;   for (i = 0; i < N; ++i)
6;     if (P > 42)
7;       a[i] = i;
8; }
9
10; The assumed context is the universe because the "signed-unsigned assumption"
11;   [P, N] -> {  : N > 0 and P >= 0 }
12; is implied by the execution domain. Thus if something is executed this
13; assumption will hold.
14
15; CHECK:      Assumed Context:
16; CHECK-NEXT: [P, N] -> {  :  }
17;
18; CHECK:              Domain :=
19; CHECK-NEXT:             [P, N] -> { Stmt_store[i0] : P >= 42 and 0 <= i0 < N };
20
21target 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"
22
23define void @f(i64* nocapture %a, i64 %N, i64 %P) nounwind {
24entry:
25  br label %bb
26
27bb:
28  %i = phi i64 [ 0, %entry ], [ %i.inc, %bb.backedge ]
29  %brcond = icmp uge i64 %P, 42
30  br i1 %brcond, label %store, label %bb.backedge
31
32store:
33  %scevgep = getelementptr inbounds i64, i64* %a, i64 %i
34  store i64 %i, i64* %scevgep
35  br label %bb.backedge
36
37bb.backedge:
38  %i.inc = add nsw i64 %i, 1
39  %exitcond = icmp eq i64 %i.inc, %N
40  br i1 %exitcond, label %return, label %bb
41
42return:
43  ret void
44}
45