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InstCombine
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2008-07-16-fsub.ll
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; RUN: opt < %s -instcombine -S | grep sub
; PR2553
define
double
@test
(
double
%X
)
nounwind
{
; fsub of self can't be optimized away.
%Y
=
fsub
double
%X
,
%X
ret
double
%Y
}