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InstCombine
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2007-03-19-BadTruncChangePR1261.ll
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; RUN: opt < %s -instcombine -S | grep zext
; PR1261.
define
i16
@test
(
i31
%zzz
)
{
%A
=
sext
i31
%zzz
to
i32
%B
=
add
i32
%A
,
16384
%C
=
lshr
i32
%B
,
15
%D
=
trunc
i32
%C
to
i16
ret
i16
%D
}