r209372 - in /trunk/gcc: ChangeLog testsuite/Ch...

[rguenth@gcc.gnu.org]

Author: rguenth
Date: Mon Apr 14 13:53:35 2014
New Revision: 209372

URL: http://gcc.gnu.org/viewcvs?rev=209372&root=gcc&view=rev
Log:
2014-04-14  Richard Biener  <rguenther@suse.de>

	* tree-ssa-forwprop.c (simplify_gimple_switch): Enhance
	check for which sign-changes we allow when forwarding
	a converted value into a switch.

	* g++.dg/tree-ssa/forwprop-switch.C: New testcase.

Added:
    trunk/gcc/testsuite/g++.dg/tree-ssa/forwprop-switch.C
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa-forwprop.c