1; RUN: opt -loop-unroll -unroll-count=2 -S < %s | FileCheck %s
2;
3; Check that the disable_nonforced loop property is honored by
4; loop unroll.
5;
6target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
7
8; CHECK-LABEL: @disable_nonforced(
9; CHECK: load
10; CHECK-NOT: load
11define void @disable_nonforced(i32* nocapture %a) {
12entry:
13  br label %for.body
14
15for.body:
16  %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]
17  %arrayidx = getelementptr inbounds i32, i32* %a, i64 %indvars.iv
18  %0 = load i32, i32* %arrayidx, align 4
19  %inc = add nsw i32 %0, 1
20  store i32 %inc, i32* %arrayidx, align 4
21  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
22  %exitcond = icmp eq i64 %indvars.iv.next, 64
23  br i1 %exitcond, label %for.end, label %for.body, !llvm.loop !0
24
25for.end:
26  ret void
27}
28
29!0 = !{!0, !{!"llvm.loop.disable_nonforced"}}
30