gcc/

gcc/
2015-04-07  Yvan Roux  <yvan.roux@linaro.org>

	Backport from trunk r217062, r217646, r218658.
	2014-12-12  Zhenqiang Chen  <zhenqiang.chen@arm.com>

	PR rtl-optimization/63917
	* ifcvt.c (cc_in_cond): New function.
	(end_ifcvt_sequence): Make sure new generated insns do not clobber CC.
	(noce_process_if_block, check_cond_move_block): Check CC references.

	2014-11-17  Zhenqiang Chen  <zhenqiang.chen@arm.com>

	* ifcvt.c (HAVE_cbranchcc4): Define.
	(noce_emit_cmove, noce_get_alt_condition, noce_get_condition):
	Use HAVE_cbranchcc4.

	2014-11-04  Zhenqiang Chen  <zhenqiang.chen@arm.com>

	Revert:
		2014-11-03  Zhenqiang Chen  <zhenqiang.chen@arm.com>
	* ifcvt.c (noce_emit_cmove, noce_get_alt_condition, noce_get_condition):
	Allow CC mode if HAVE_cbranchcc4.

gcc/testsuite/
2015-04-07  Yvan Roux  <yvan.roux@linaro.org>

	Backport from trunk r218658.
	2014-12-12  Zhenqiang Chen  <zhenqiang.chen@arm.com>

	* gcc.dg/pr64007.c: New test.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/linaro/gcc-4_9-branch@221894 138bc75d-0d04-0410-961f-82ee72b054a4