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From: "zuxy.meng at gmail dot com" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug target/48227] New: "rep ret" generated for -march=core2 Date: Tue, 22 Mar 2011 09:10:00 -0000 [thread overview] Message-ID: <bug-48227-4@http.gcc.gnu.org/bugzilla/> (raw) http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48227 Summary: "rep ret" generated for -march=core2 Product: gcc Version: 4.5.4 Status: UNCONFIRMED Severity: normal Priority: P3 Component: target AssignedTo: unassigned@gcc.gnu.org ReportedBy: zuxy.meng@gmail.com gcc 4.5 will use "rep; ret" for K8, Athlon, AMDFam10, Core2, and generic. Looking into the change history, we can see that gcc has padded returns for Core2 ever since Core2 support was added here: http://gcc.gnu.org/ml/gcc-patches/2006-11/msg00860.html It is suspected that Vlad just copied the generic tunings for Core2, and didn't notice that there was no particular reason to pad returns for Core2.
next reply other threads:[~2011-03-22 6:54 UTC|newest] Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top 2011-03-22 9:10 zuxy.meng at gmail dot com [this message] 2011-04-01 19:21 ` [Bug target/48227] " pinskia at gcc dot gnu.org 2011-04-02 0:55 ` ian at airs dot com 2011-04-06 13:42 ` zuxy.meng at gmail dot com 2011-12-15 23:23 ` pinskia at gcc dot gnu.org 2021-12-29 4:12 ` pinskia at gcc dot gnu.org
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