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From: "jamborm at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug middle-end/49886] New: pass_split_functions cannot deal with function type attributes Date: Thu, 28 Jul 2011 11:42:00 -0000 [thread overview] Message-ID: <bug-49886-4@http.gcc.gnu.org/bugzilla/> (raw) http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49886 Summary: pass_split_functions cannot deal with function type attributes Product: gcc Version: 4.7.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: middle-end AssignedTo: unassigned@gcc.gnu.org ReportedBy: jamborm@gcc.gnu.org CC: hubicka@gcc.gnu.org Host: i686-linux-gnu, x86_64-linux-gnu Target: i686-linux-gnu, x86_64-linux-gnu Build: i686-linux-gnu, x86_64-linux-gnu Created attachment 24855 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=24855 Testcase pass_split_functions is happy to split functions which have type attributes but cannot update them if the new clone has in any way different parameters than the original. This can lead to miscompilations, for example, the attached testcase segfaults when compiled at -O3 (on i686 and x86_64 but probably just everywhere, tested on trunk and a checkout of the 4.6 branch from July 11). -fno-partial-inlining makes the problem go away.
next reply other threads:[~2011-07-28 11:42 UTC|newest] Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top 2011-07-28 11:42 jamborm at gcc dot gnu.org [this message] 2011-07-28 11:51 ` [Bug middle-end/49886] [4.6/4.7 Regression] " rguenth at gcc dot gnu.org 2011-07-28 16:53 ` jamborm at gcc dot gnu.org 2011-08-01 14:53 ` rguenth at gcc dot gnu.org 2011-08-31 17:48 ` jamborm at gcc dot gnu.org 2011-09-02 12:46 ` jamborm at gcc dot gnu.org 2011-09-02 14:31 ` jamborm at gcc dot gnu.org 2011-09-03 19:41 ` jamborm at gcc dot gnu.org 2011-09-06 15:09 ` jamborm at gcc dot gnu.org 2011-09-07 12:02 ` jamborm at gcc dot gnu.org 2011-09-19 6:20 ` terry.guo at arm dot com 2011-09-19 11:46 ` jamborm at gcc dot gnu.org 2011-09-19 13:37 ` jamborm at gcc dot gnu.org 2011-09-19 13:57 ` jamborm at gcc dot gnu.org
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