forked from OSchip/llvm-project
30 lines
1.1 KiB
LLVM
30 lines
1.1 KiB
LLVM
|
; RUN: opt -S -loop-vectorize -force-vector-interleave=1 -force-vector-width=4 -instsimplify -simplifycfg < %s | FileCheck %s
|
||
|
|
; Note: -instsimplify -simplifycfg remove the (now dead) original loop, making
|
||
|
|
; it easy to test that the llvm.loop.unroll.disable hint is still present.
|
||
|
|
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
|
||
|
|
|
||
|
|
; Function Attrs: norecurse nounwind uwtable
|
||
|
|
define void @foo(i32* nocapture %b) #0 {
|
||
|
|
entry:
|
||
|
|
br label %for.body
|
||
|
|
|
||
|
|
for.cond.cleanup: ; preds = %for.body
|
||
|
|
ret void
|
||
|
|
|
||
|
|
for.body: ; preds = %for.body, %entry
|
||
|
|
%indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]
|
||
|
|
%arrayidx = getelementptr inbounds i32, i32* %b, i64 %indvars.iv
|
||
|
|
store i32 1, i32* %arrayidx, align 4
|
||
|
|
%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
|
||
|
|
%exitcond = icmp eq i64 %indvars.iv.next, 16
|
||
|
|
br i1 %exitcond, label %for.cond.cleanup, label %for.body, !llvm.loop !0
|
||
|
|
}
|
||
|
|
|
||
|
|
; CHECK-LABEL: @foo
|
||
|
|
; CHECK: = !{!"llvm.loop.unroll.disable"}
|
||
|
|
|
||
|
|
attributes #0 = { norecurse nounwind uwtable }
|
||
|
|
|
||
|
|
!0 = distinct !{!0, !1}
|
||
|
|
!1 = !{!"llvm.loop.unroll.disable"}
|