[Bug middle-end/18908] Missed folding opportunities with bools

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18908

--- Comment #19 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-07-20 13:36:33 UTC ---
Author: rguenth
Date: Wed Jul 20 13:36:30 2011
New Revision: 176510

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=176510
Log:
2011-07-20  Richard Guenther  <rguenther@suse.de>

    PR middle-end/18908
    * tree.c (integer_all_onesp): Use TYPE_PRECISION, not mode precision.
    * tree-ssa-forwprop.c (simplify_bitwise_binary): Remove bogus
    ADDR_EXPR folding.  Canonicalize X ^ ~0 as ~X.

    * gcc.dg/tree-ssa/pr18908.c: New testcase.
    * gcc.dg/tree-ssa/bitwise-sink.c: Adjust.

Modified:
    trunk/gcc/tree.c