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r177597 - in /trunk/gcc: ChangeLog testsuite/Ch...
- From: rguenth at gcc dot gnu dot org
- To: gcc-cvs at gcc dot gnu dot org
- Date: Tue, 09 Aug 2011 14:03:11 -0000
- Subject: r177597 - in /trunk/gcc: ChangeLog testsuite/Ch...
Author: rguenth
Date: Tue Aug 9 14:03:10 2011
New Revision: 177597
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=177597
Log:
2011-08-09 Richard Guenther <rguenther@suse.de>
* tree-vrp.c (zero_nonzero_bits_from_vr): Also return precise
information for ranges with only negative values.
(extract_range_from_binary_expr_1): Adjust BIT_IOR_EXPR and
BIT_AND_EXPR handling to handle ranges with negative values.
* gcc.dg/tree-ssa/vrp57.c: Disable CCP.
* gcc.dg/tree-ssa/vrp60.c: New testcase.
* gcc.dg/tree-ssa/vrp61.c: Likewise.
* gcc.dg/tree-ssa/vrp62.c: Likewise.
Added:
trunk/gcc/testsuite/gcc.dg/tree-ssa/vrp60.c
trunk/gcc/testsuite/gcc.dg/tree-ssa/vrp61.c
trunk/gcc/testsuite/gcc.dg/tree-ssa/vrp62.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/testsuite/gcc.dg/tree-ssa/vrp57.c
trunk/gcc/tree-vrp.c