1 ; RUN: opt -loop-unroll-and-jam -allow-unroll-and-jam -unroll-and-jam-count=2 -S < %s | FileCheck %s
3 ; Verify that the llvm.loop.unroll_and_jam.enable loop property
4 ; overrides llvm.loop.disable_nonforced.
6 target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-a:0:32-n32-S64"
8 ; CHECK-LABEL: disable_nonforced_enable
13 define void @disable_nonforced_enable(i32 %I, i32 %J, i32* noalias nocapture %A, i32* noalias nocapture readonly %B) {
15 %cmp = icmp ne i32 %J, 0
16 %cmp122 = icmp ne i32 %I, 0
17 %or.cond = and i1 %cmp, %cmp122
18 br i1 %or.cond, label %for.outer.preheader, label %for.end
24 %i.us = phi i32 [ %add8.us, %for.latch ], [ 0, %for.outer.preheader ]
28 %j.us = phi i32 [ 0, %for.outer ], [ %inc.us, %for.inner ]
29 %sum1.us = phi i32 [ 0, %for.outer ], [ %add.us, %for.inner ]
30 %arrayidx.us = getelementptr inbounds i32, i32* %B, i32 %j.us
31 %0 = load i32, i32* %arrayidx.us, align 4
32 %add.us = add i32 %0, %sum1.us
33 %inc.us = add nuw i32 %j.us, 1
34 %exitcond = icmp eq i32 %inc.us, %J
35 br i1 %exitcond, label %for.latch, label %for.inner
38 %add.us.lcssa = phi i32 [ %add.us, %for.inner ]
39 %arrayidx6.us = getelementptr inbounds i32, i32* %A, i32 %i.us
40 store i32 %add.us.lcssa, i32* %arrayidx6.us, align 4
41 %add8.us = add nuw i32 %i.us, 1
42 %exitcond25 = icmp eq i32 %add8.us, %I
43 br i1 %exitcond25, label %for.end.loopexit, label %for.outer, !llvm.loop !0
52 !0 = distinct !{!0, !{!"llvm.loop.disable_nonforced"}, !{!"llvm.loop.unroll_and_jam.enable"}}