1; RUN: llc -march=hexagon -mcpu=hexagonv5 -enable-pipeliner -pipeliner-max-stages=2 < %s
2; REQUIRES: asserts
3
4; This tests check that a dependence is created between a Phi and it's uses.
5; An assert occurs if the Phi dependences are not correct.
6
7define void @test1(i32* %f2, i32 %nc) {
8entry:
9  %i.011 = add i32 %nc, -1
10  %cmp12 = icmp sgt i32 %i.011, 1
11  br i1 %cmp12, label %for.body.preheader, label %for.end
12
13for.body.preheader:
14  %0 = add i32 %nc, -2
15  %scevgep = getelementptr i32, i32* %f2, i32 %0
16  %sri = load i32, i32* %scevgep, align 4
17  %scevgep15 = getelementptr i32, i32* %f2, i32 %i.011
18  %sri16 = load i32, i32* %scevgep15, align 4
19  br label %for.body
20
21for.body:
22  %i.014 = phi i32 [ %i.0, %for.body ], [ %i.011, %for.body.preheader ]
23  %i.0.in13 = phi i32 [ %i.014, %for.body ], [ %nc, %for.body.preheader ]
24  %sr = phi i32 [ %1, %for.body ], [ %sri, %for.body.preheader ]
25  %sr17 = phi i32 [ %sr, %for.body ], [ %sri16, %for.body.preheader ]
26  %arrayidx = getelementptr inbounds i32, i32* %f2, i32 %i.014
27  %sub1 = add nsw i32 %i.0.in13, -3
28  %arrayidx2 = getelementptr inbounds i32, i32* %f2, i32 %sub1
29  %1 = load i32, i32* %arrayidx2, align 4
30  %sub3 = sub nsw i32 %sr17, %1
31  store i32 %sub3, i32* %arrayidx, align 4
32  %i.0 = add nsw i32 %i.014, -1
33  %cmp = icmp sgt i32 %i.0, 1
34  br i1 %cmp, label %for.body, label %for.end.loopexit
35
36for.end.loopexit:
37  br label %for.end
38
39for.end:
40  ret void
41}
42
43