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; RUN: opt -tbaa -basicaa -gvn -S < %s | FileCheck %s
target datalayout = "e-p:64:64:64"
; GVN should preserve the TBAA tag on loads when doing PRE.
; CHECK: @test
; CHECK: %tmp33.pre = load i16* %P, align 2, !tbaa !0
; CHECK: br label %for.body
define void @test(i16 *%P, i16* %Q) nounwind {
entry:
br i1 undef, label %bb.nph, label %for.end
bb.nph: ; preds = %entry
br label %for.body
for.body: ; preds = %for.body, %bb.nph
%tmp33 = load i16* %P, align 2, !tbaa !0
store i16 %tmp33, i16* %Q
store i16 0, i16* %P, align 2, !tbaa !0
br i1 false, label %for.end, label %for.body
for.end: ; preds = %for.body, %entry
ret void
}
!0 = metadata !{metadata !"short", metadata !1}
!1 = metadata !{metadata !"omnipotent char", metadata !2}
!2 = metadata !{metadata !"Simple C/C++ TBAA", null}
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