------- Comment #22 from rguenther at suse dot de 2009-11-30 10:13 ------- Subject: Re: [4.4/4.5 Regression] Vectorizer cannot deal with PAREN_EXPR gracefully, 50% performance regression
On Mon, 30 Nov 2009, irar at il dot ibm dot com wrote: > ------- Comment #20 from irar at il dot ibm dot com 2009-11-30 08:52 ------- > Actually, PAREN_EXPRs are vectorizable (the support was added by you, Richard, > in your original PAREN_EXPR patch > http://gcc.gnu.org/viewcvs?limit_changes=0&view=revision&revision=132515 )). Oh, indeed ;) > The problem here is that vectorizable_assignment does not support multiple > types. The attached patch adds this support, but I don't know if the patch is > suitable for the current stage... Probably not (though it looks small). If you feel confident about it you may well apply it still though. Thanks, Richard. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42108