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| ; RUN: opt -disable-loop-unrolling -O1 -S < %s | FileCheck %s
;
; Check loop unrolling metadata is honored despite automatic unrolling
; being disabled in the pass builder.
;
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
; CHECK-LABEL: @forced(
; CHECK: load
; CHECK: load
define void @forced(i32* nocapture %a) {
entry:
br label %for.body
for.body:
%indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]
%arrayidx = getelementptr inbounds i32, i32* %a, i64 %indvars.iv
%0 = load i32, i32* %arrayidx, align 4
%inc = add nsw i32 %0, 1
store i32 %inc, i32* %arrayidx, align 4
%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
%exitcond = icmp eq i64 %indvars.iv.next, 64
br i1 %exitcond, label %for.end, label %for.body, !llvm.loop !0
for.end:
ret void
}
!0 = distinct !{!0, !{!"llvm.loop.unroll.enable"},
!{!"llvm.loop.unroll.count", i32 2}}
|