r190286 - in /trunk/gcc: ChangeLog testsuite/Ch...

[rguenth@gcc.gnu.org]

Author: rguenth
Date: Fri Aug 10 08:33:57 2012
New Revision: 190286

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=190286
Log:
2012-08-10  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/54027
	* tree-vrp.c (extract_range_from_binary_expr_1): Merge RSHIFT_EXPR
	and LSHIFT_EXPR handling, force -fwrapv for the multiplication used
	to handle LSHIFT_EXPR with a constant.

	* gcc.dg/torture/pr54027.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/torture/pr54027.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-vrp.c