1; RUN: opt < %s -S -loop-unroll -unroll-runtime -unroll-count=2 | FileCheck %s
2
3; This tests that setting the unroll count works
4
5; CHECK: for.body.prol:
6; CHECK: br label %for.body.preheader.split
7; CHECK: for.body:
8; CHECK: br i1 %exitcond.1, label %for.end.loopexit.unr-lcssa, label %for.body
9; CHECK-NOT: br i1 %exitcond.4, label %for.end.loopexit{{.*}}, label %for.body
10
11define i32 @test(i32* nocapture %a, i32 %n) nounwind uwtable readonly {
12entry:
13  %cmp1 = icmp eq i32 %n, 0
14  br i1 %cmp1, label %for.end, label %for.body
15
16for.body:                                         ; preds = %for.body, %entry
17  %indvars.iv = phi i64 [ %indvars.iv.next, %for.body ], [ 0, %entry ]
18  %sum.02 = phi i32 [ %add, %for.body ], [ 0, %entry ]
19  %arrayidx = getelementptr inbounds i32* %a, i64 %indvars.iv
20  %0 = load i32* %arrayidx, align 4
21  %add = add nsw i32 %0, %sum.02
22  %indvars.iv.next = add i64 %indvars.iv, 1
23  %lftr.wideiv = trunc i64 %indvars.iv.next to i32
24  %exitcond = icmp eq i32 %lftr.wideiv, %n
25  br i1 %exitcond, label %for.end, label %for.body
26
27for.end:                                          ; preds = %for.body, %entry
28  %sum.0.lcssa = phi i32 [ 0, %entry ], [ %add, %for.body ]
29  ret i32 %sum.0.lcssa
30}
31