This is the mail archive of the gcc-cvs@gcc.gnu.org mailing list for the GCC project.


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]
Other format: [Raw text]

r186374 - in /trunk/gcc: ChangeLog testsuite/Ch...


Author: rguenth
Date: Thu Apr 12 11:38:47 2012
New Revision: 186374

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=186374
Log:
2012-04-12  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/52943
	* tree-chrec.h (chrec_is_positive): Remove.
	* tree-scalar-evolution.c (chrec_is_positive): Move ...
	* tree-data-ref.c (chrec_is_positive): ... here.  Make static.
	Return false for a constant zero instead of negative.
	(analyze_siv_subscript_cst_affine): Handle zero difference
	in the initial condition explicitely.

	* gcc.dg/torture/pr52943.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/torture/pr52943.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-chrec.h
    trunk/gcc/tree-data-ref.c
    trunk/gcc/tree-scalar-evolution.c


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]