r207792 - in /trunk/gcc: ChangeLog ree.c testsu...

[law@gcc.gnu.org]

Author: law
Date: Fri Feb 14 20:26:31 2014
New Revision: 207792

URL: http://gcc.gnu.org/viewcvs?rev=207792&root=gcc&view=rev
Log:
	PR rtl-optimization/60131
	* ree.c (get_extended_src_reg): New function.
	(combine_reaching_defs): Use it rather than assuming location
	of REG.
	(find_and_remove_re): Verify first operand of extension is
	a REG before adding the insns to the copy list.

	PR rtl-optimization/60131
	* g++.dg/torture/pr60131.C: New test.

Added:
    trunk/gcc/testsuite/g++.dg/torture/pr60131.C
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/ree.c
    trunk/gcc/testsuite/ChangeLog