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From: "jakub at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug rtl-optimization/56117] [4.8 Regression] ICE: in cselib_subst_to_values, at cselib.c:1853 with -O2 -fsched2-use-superblocks and __builtin_prefetch() Date: Mon, 28 Jan 2013 08:52:00 -0000 [thread overview] Message-ID: <bug-56117-4-EoGv5mM9NK@http.gcc.gnu.org/bugzilla/> (raw) In-Reply-To: <bug-56117-4@http.gcc.gnu.org/bugzilla/> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56117 --- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> 2013-01-28 08:51:39 UTC --- Created attachment 29289 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=29289 gcc48-pr56117.patch Untested fix. For MEMs, sched-deps.c is calling cselib_lookup_from_insn, but for PREFETCH it wasn't doing that. As this is before cselib_process_insn is called, some REGs mentioned in the pattern might be never looked up yet at that point.
next prev parent reply other threads:[~2013-01-28 8:52 UTC|newest] Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top 2013-01-26 14:08 [Bug rtl-optimization/56117] New: " zsojka at seznam dot cz 2013-01-26 15:20 ` [Bug rtl-optimization/56117] " rguenth at gcc dot gnu.org 2013-01-28 8:45 ` jakub at gcc dot gnu.org 2013-01-28 8:52 ` jakub at gcc dot gnu.org [this message] 2013-01-28 16:51 ` jakub at gcc dot gnu.org 2013-01-28 16:52 ` jakub at gcc dot gnu.org
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