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r194358 - in /trunk/gcc: ChangeLog testsuite/Ch...
- From: rguenth at gcc dot gnu dot org
- To: gcc-cvs at gcc dot gnu dot org
- Date: Mon, 10 Dec 2012 14:00:29 -0000
- Subject: r194358 - in /trunk/gcc: ChangeLog testsuite/Ch...
Author: rguenth
Date: Mon Dec 10 14:00:25 2012
New Revision: 194358
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=194358
Log:
2012-12-10 Richard Biener <rguenther@suse.de>
PR tree-optimization/55107
* tree-ssa-pre.c (struct pre_stats): Remove constified field.
(bitmap_set_replace_value): Add gcc_unreachable.
(do_regular_insertion): Re-write all_same handling. Insert
an assignment instead of a PHI in this case.
(eliminate_bb): Record availability also for SSA names defined
by a constant.
(do_pre): Do not record constified events.
(execute_fre): Likewise.
* gcc.dg/torture/pr55107.c: New testcase.
* gcc.dg/tree-ssa/ssa-pre-5.c: Adjust.
Added:
trunk/gcc/testsuite/gcc.dg/torture/pr55107.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/testsuite/gcc.dg/tree-ssa/ssa-pre-5.c
trunk/gcc/tree-ssa-pre.c