1; RUN: opt %loadPolly -analyze -polly-scops < %s | FileCheck %s
2;
3; Check that we do not create a SCoP if there is no statement executed.
4;
5; CHECK-NOT: Context
6;
7;    void jd(int *A, int *B) {
8;      for (int i = 0; i < 1024; i++)
9;        for (int j = i; j < 0; j++)
10;          A[i] = B[i];
11;    }
12;
13target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
14
15define void @jd(i32* %A, i32* %B) {
16entry:
17  br label %for.cond
18
19for.cond:                                         ; preds = %for.inc6, %entry
20  %indvars.iv = phi i64 [ %indvars.iv.next, %for.inc6 ], [ 0, %entry ]
21  %exitcond = icmp ne i64 %indvars.iv, 1024
22  br i1 %exitcond, label %for.body, label %for.end8
23
24for.body:                                         ; preds = %for.cond
25  %tmp = trunc i64 %indvars.iv to i32
26  br label %for.cond1
27
28for.cond1:                                        ; preds = %for.inc, %for.body
29  %j.0 = phi i32 [ %tmp, %for.body ], [ %inc, %for.inc ]
30  %cmp2 = icmp slt i32 %j.0, 0
31  br i1 %cmp2, label %for.body3, label %for.end
32
33for.body3:                                        ; preds = %for.cond1
34  %arrayidx = getelementptr inbounds i32, i32* %B, i64 %indvars.iv
35  %tmp1 = load i32, i32* %arrayidx, align 4
36  %arrayidx5 = getelementptr inbounds i32, i32* %A, i64 %indvars.iv
37  store i32 %tmp1, i32* %arrayidx5, align 4
38  br label %for.inc
39
40for.inc:                                          ; preds = %for.body3
41  %inc = add nsw i32 %j.0, 1
42  br label %for.cond1
43
44for.end:                                          ; preds = %for.cond1
45  br label %for.inc6
46
47for.inc6:                                         ; preds = %for.end
48  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
49  br label %for.cond
50
51for.end8:                                         ; preds = %for.cond
52  ret void
53}
54