1; RUN: llc -march=hexagon -mcpu=hexagonv5 < %s | FileCheck %s
2;
3; Generate loop1 instruction for double loop sequence.
4
5; CHECK: loop0(.LBB{{.}}_{{.}}, #100)
6; CHECK: endloop0
7; CHECK: loop1(.LBB{{.}}_{{.}}, #100)
8; CHECK: loop0(.LBB{{.}}_{{.}}, #100)
9; CHECK: endloop0
10; CHECK: endloop1
11
12define i32 @main() #0 {
13entry:
14  %array = alloca [100 x i32], align 8
15  %doublearray = alloca [100 x [100 x i32]], align 8
16  %0 = bitcast [100 x i32]* %array to i8*
17  call void @llvm.lifetime.start(i64 400, i8* %0) #1
18  %1 = bitcast [100 x [100 x i32]]* %doublearray to i8*
19  call void @llvm.lifetime.start(i64 40000, i8* %1) #1
20  %arrayidx1 = getelementptr inbounds [100 x [100 x i32]], [100 x [100 x i32]]* %doublearray, i32 0, i32 10, i32 10
21  %arrayidx2.gep = getelementptr [100 x i32], [100 x i32]* %array, i32 0, i32 0
22  br label %for.body
23
24for.body:
25  %2 = phi i32 [ undef, %entry ], [ %.pre, %for.body.for.body_crit_edge ]
26  %sum.031 = phi i32 [ undef, %entry ], [ %add, %for.body.for.body_crit_edge ]
27  %arrayidx2.phi = phi i32* [ %arrayidx2.gep, %entry ], [ %arrayidx2.inc, %for.body.for.body_crit_edge ]
28  %i.030 = phi i32 [ 1, %entry ], [ %phitmp, %for.body.for.body_crit_edge ]
29  %add = add nsw i32 %2, %sum.031
30  %exitcond33 = icmp eq i32 %i.030, 100
31  %arrayidx2.inc = getelementptr i32, i32* %arrayidx2.phi, i32 1
32  br i1 %exitcond33, label %for.cond7.preheader.preheader, label %for.body.for.body_crit_edge
33
34for.cond7.preheader.preheader:
35  br label %for.cond7.preheader
36
37for.body.for.body_crit_edge:
38  %.pre = load i32, i32* %arrayidx2.inc, align 4
39  %phitmp = add i32 %i.030, 1
40  br label %for.body
41
42for.cond7.preheader:
43  %i.129 = phi i32 [ %inc16, %for.inc15 ], [ 0, %for.cond7.preheader.preheader ]
44  br label %for.body9
45
46for.body9:
47  %j.028 = phi i32 [ 0, %for.cond7.preheader ], [ %inc13, %for.body9 ]
48  %arrayidx11 = getelementptr inbounds [100 x [100 x i32]], [100 x [100 x i32]]* %doublearray, i32 0, i32 %i.129, i32 %j.028
49  store i32 %add, i32* %arrayidx11, align 4
50  %inc13 = add nsw i32 %j.028, 1
51  %exitcond = icmp eq i32 %inc13, 100
52  br i1 %exitcond, label %for.inc15, label %for.body9
53
54for.inc15:
55  %inc16 = add nsw i32 %i.129, 1
56  %exitcond32 = icmp eq i32 %inc16, 100
57  br i1 %exitcond32, label %for.end17, label %for.cond7.preheader
58
59for.end17:
60  %3 = load i32, i32* %arrayidx1, align 8
61  call void @llvm.lifetime.end(i64 40000, i8* %1) #1
62  call void @llvm.lifetime.end(i64 400, i8* %0) #1
63  ret i32 %3
64}
65
66declare void @llvm.lifetime.start(i64, i8* nocapture) #1
67
68declare void @llvm.lifetime.end(i64, i8* nocapture) #1
69