disable_nonforced_count.ll
1.65 KB
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; RUN: opt -loop-unroll-and-jam -allow-unroll-and-jam -S < %s | FileCheck %s
;
; Verify that the llvm.loop.unroll_and_jam.count loop property overrides
; llvm.loop.disable_nonforced.
;
target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-a:0:32-n32-S64"
; CHECK-LABEL: @disable_nonforced_enable(
; CHECK: load
; CHECK: load
; CHECK-NOT: load
; CHECK: br i1
define void @disable_nonforced_enable(i32 %I, i32 %J, i32* noalias nocapture %A, i32* noalias nocapture readonly %B) {
entry:
%cmp = icmp ne i32 %J, 0
%cmp122 = icmp ne i32 %I, 0
%or.cond = and i1 %cmp, %cmp122
br i1 %or.cond, label %for.outer.preheader, label %for.end
for.outer.preheader:
br label %for.outer
for.outer:
%i.us = phi i32 [ %add8.us, %for.latch ], [ 0, %for.outer.preheader ]
br label %for.inner
for.inner:
%j.us = phi i32 [ 0, %for.outer ], [ %inc.us, %for.inner ]
%sum1.us = phi i32 [ 0, %for.outer ], [ %add.us, %for.inner ]
%arrayidx.us = getelementptr inbounds i32, i32* %B, i32 %j.us
%0 = load i32, i32* %arrayidx.us, align 4
%add.us = add i32 %0, %sum1.us
%inc.us = add nuw i32 %j.us, 1
%exitcond = icmp eq i32 %inc.us, %J
br i1 %exitcond, label %for.latch, label %for.inner
for.latch:
%add.us.lcssa = phi i32 [ %add.us, %for.inner ]
%arrayidx6.us = getelementptr inbounds i32, i32* %A, i32 %i.us
store i32 %add.us.lcssa, i32* %arrayidx6.us, align 4
%add8.us = add nuw i32 %i.us, 1
%exitcond25 = icmp eq i32 %add8.us, %I
br i1 %exitcond25, label %for.end.loopexit, label %for.outer, !llvm.loop !0
for.end.loopexit:
br label %for.end
for.end:
ret void
}
!0 = distinct !{!0, !{!"llvm.loop.disable_nonforced"}, !{!"llvm.loop.unroll_and_jam.count", i32 2}}