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[Bug rtl-optimization/49936] [4.7 Regression] IRA handles CANNOT_CHANGE_MODE_CLASS poorly, + spills to memory on 4.7
- From: "vmakarov at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Fri, 19 Aug 2011 22:17:29 +0000
- Subject: [Bug rtl-optimization/49936] [4.7 Regression] IRA handles CANNOT_CHANGE_MODE_CLASS poorly, + spills to memory on 4.7
- Auto-submitted: auto-generated
- References: <bug-49936-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49936
--- Comment #5 from Vladimir Makarov <vmakarov at gcc dot gnu.org> 2011-08-19 22:17:29 UTC ---
Author: vmakarov
Date: Fri Aug 19 22:17:26 2011
New Revision: 177916
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=177916
Log:
2011-08-19 Vladimir Makarov <vmakarov@redhat.com>
PR rtl-optimization/49936
* ira.c (ira_init_register_move_cost): Ignore too small subclasses
for calculation of max register move costs.
Modified:
trunk/gcc/ChangeLog
trunk/gcc/ira.c