1; RUN: llc -march=hexagon -O2 < %s | FileCheck %s
2
3define void @foo(i32 %n, i32* nocapture %A, i32* nocapture %B) nounwind optsize {
4entry:
5  %cmp = icmp sgt i32 %n, 100
6  br i1 %cmp, label %for.body.preheader, label %for.cond4.preheader
7
8; CHECK: endloop0
9; CHECK: endloop0
10; CHECK-NOT: endloop0
11
12for.body.preheader:
13  br label %for.body
14
15for.cond4.preheader:
16  %cmp113 = icmp sgt i32 %n, 0
17  br i1 %cmp113, label %for.body7.preheader, label %if.end
18
19for.body7.preheader:
20  br label %for.body7
21
22for.body:
23  %arrayidx.phi = phi i32* [ %arrayidx.inc, %for.body ], [ %B, %for.body.preheader ]
24  %arrayidx3.phi = phi i32* [ %arrayidx3.inc, %for.body ], [ %A, %for.body.preheader ]
25  %i.014 = phi i32 [ %inc, %for.body ], [ 0, %for.body.preheader ]
26  %0 = load i32, i32* %arrayidx.phi, align 4
27  %sub = add nsw i32 %0, -1
28  store i32 %sub, i32* %arrayidx3.phi, align 4
29  %inc = add nsw i32 %i.014, 1
30  %exitcond = icmp eq i32 %inc, %n
31  %arrayidx.inc = getelementptr i32, i32* %arrayidx.phi, i32 1
32  %arrayidx3.inc = getelementptr i32, i32* %arrayidx3.phi, i32 1
33  br i1 %exitcond, label %if.end.loopexit, label %for.body
34
35for.body7:
36  %arrayidx8.phi = phi i32* [ %arrayidx8.inc, %for.body7 ], [ %B, %for.body7.preheader ]
37  %arrayidx9.phi = phi i32* [ %arrayidx9.inc, %for.body7 ], [ %A, %for.body7.preheader ]
38  %i.117 = phi i32 [ %inc11, %for.body7 ], [ 0, %for.body7.preheader ]
39  %1 = load i32, i32* %arrayidx8.phi, align 4
40  %add = add nsw i32 %1, 1
41  store i32 %add, i32* %arrayidx9.phi, align 4
42  %inc11 = add nsw i32 %i.117, 1
43  %exitcond18 = icmp eq i32 %inc11, %n
44  %arrayidx8.inc = getelementptr i32, i32* %arrayidx8.phi, i32 1
45  %arrayidx9.inc = getelementptr i32, i32* %arrayidx9.phi, i32 1
46  br i1 %exitcond18, label %if.end.loopexit21, label %for.body7
47
48if.end.loopexit:
49  br label %if.end
50
51if.end.loopexit21:
52  br label %if.end
53
54if.end:
55  ret void
56}
57