r205117 - in /trunk/gcc: ChangeLog regcprop.c t...

[rearnsha@gcc.gnu.org]

Author: rearnsha
Date: Wed Nov 20 13:55:04 2013
New Revision: 205117

URL: http://gcc.gnu.org/viewcvs?rev=205117&root=gcc&view=rev
Log:
PR rtl-optimization/54300

gcc/

	PR rtl-optimization/54300
	* regcprop.c (copyprop_hardreg_forward_1): Ensure any unused
	outputs in a single-set are killed from the value chains.

gcc/testsuite:

	PR rtl-optimization/54300
	* gcc.target/arm/pr54300.C: New test.


Added:
    trunk/gcc/testsuite/gcc.target/arm/pr54300.C
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/regcprop.c
    trunk/gcc/testsuite/ChangeLog