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[Bug target/62642] [4.8/4.9 Regression] x86 rdtsc is moved through barrier
- From: "jakub at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Fri, 12 Jun 2015 11:55:15 +0000
- Subject: [Bug target/62642] [4.8/4.9 Regression] x86 rdtsc is moved through barrier
- Auto-submitted: auto-generated
- References: <bug-62642-4 at http dot gcc dot gnu dot org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62642
--- Comment #9 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Fri Jun 12 11:54:43 2015
New Revision: 224420
URL: https://gcc.gnu.org/viewcvs?rev=224420&root=gcc&view=rev
Log:
Backported from mainline
2014-12-15 Vladimir Makarov <vmakarov@redhat.com>
PR target/62642
* ira.c (rtx_moveable_p): Prevent UNSPEC_VOLATILE moves.
Modified:
branches/gcc-4_9-branch/gcc/ChangeLog
branches/gcc-4_9-branch/gcc/ira.c