r192205 - in /trunk/gcc: ChangeLog tree-ssa-pre...

[rguenth@gcc.gnu.org]

Author: rguenth
Date: Mon Oct  8 11:58:03 2012
New Revision: 192205

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=192205
Log:
2012-10-08  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/54825
	* tree-ssa-sccvn.c (vn_nary_length_from_stmt): Handle BIT_FIELD_REF.
	(init_vn_nary_op_from_stmt): Likewise.
	* tree-ssa-pre.c (compute_avail): Use vn_nary_op_lookup_stmt.
	* tree-ssa-sccvn.h (sizeof_vn_nary_op): Avoid overflow.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/tree-ssa-pre.c
    trunk/gcc/tree-ssa-sccvn.c
    trunk/gcc/tree-ssa-sccvn.h