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[Bug middle-end/18908] Missed folding opportunities with bools
- From: "rguenth at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Wed, 20 Jul 2011 13:37:13 +0000
- Subject: [Bug middle-end/18908] Missed folding opportunities with bools
- Auto-submitted: auto-generated
- References: <bug-18908-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18908
--- Comment #18 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-07-20 13:35:27 UTC ---
Author: rguenth
Date: Wed Jul 20 13:35:20 2011
New Revision: 176508
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=176508
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.
Added:
trunk/gcc/testsuite/gcc.dg/tree-ssa/pr18908.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/testsuite/gcc.dg/tree-ssa/bitwise-sink.c
trunk/gcc/tree-ssa-forwprop.c