[Bug rtl-optimization/63917] [5 Regression] r217646 caused many failures

[zqchen at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63917

--- Comment #10 from zqchen at gcc dot gnu.org ---
Author: zqchen
Date: Fri Dec 12 05:51:19 2014
New Revision: 218658

URL: https://gcc.gnu.org/viewcvs?rev=218658&root=gcc&view=rev
Log:
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.

testsuite/ChangeLog:
2014-12-12  Zhenqiang Chen  <zhenqiang.chen@arm.com>

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

Added:
    trunk/gcc/testsuite/gcc.dg/pr64007.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/ifcvt.c
    trunk/gcc/testsuite/ChangeLog