1; RUN: opt < %s -S -mtriple=powerpc64-unknown-linux-gnu -mcpu=a2 -loop-unroll | FileCheck %s
2define void @unroll_opt_for_size() nounwind optsize {
3entry:
4  br label %loop
5
6loop:
7  %iv = phi i32 [ 0, %entry ], [ %inc, %loop ]
8  %inc = add i32 %iv, 1
9  %exitcnd = icmp uge i32 %inc, 1024
10  br i1 %exitcnd, label %exit, label %loop
11
12exit:
13  ret void
14}
15
16; CHECK-LABEL: @unroll_opt_for_size
17; CHECK:      add
18; CHECK-NEXT: add
19; CHECK-NEXT: add
20; CHECK: icmp
21
22define i32 @test(i32* nocapture %a, i32 %n) nounwind uwtable readonly {
23entry:
24  %cmp1 = icmp eq i32 %n, 0
25  br i1 %cmp1, label %for.end, label %for.body
26
27for.body:                                         ; preds = %for.body, %entry
28  %indvars.iv = phi i64 [ %indvars.iv.next, %for.body ], [ 0, %entry ]
29  %sum.02 = phi i32 [ %add, %for.body ], [ 0, %entry ]
30  %arrayidx = getelementptr inbounds i32, i32* %a, i64 %indvars.iv
31  %0 = load i32, i32* %arrayidx, align 4
32  %add = add nsw i32 %0, %sum.02
33  %indvars.iv.next = add i64 %indvars.iv, 1
34  %lftr.wideiv = trunc i64 %indvars.iv.next to i32
35  %exitcond = icmp eq i32 %lftr.wideiv, %n
36  br i1 %exitcond, label %for.end, label %for.body
37
38for.end:                                          ; preds = %for.body, %entry
39  %sum.0.lcssa = phi i32 [ 0, %entry ], [ %add, %for.body ]
40  ret i32 %sum.0.lcssa
41}
42
43; CHECK-LABEL: @test
44; CHECK: for.body.prol{{.*}}:
45; CHECK: for.body:
46; CHECK: br i1 %exitcond.7, label %for.end.loopexit{{.*}}, label %for.body
47
48