r228375 - in /trunk/gcc: ChangeLog ifcvt.c test...

[ktkachov@gcc.gnu.org]

Author: ktkachov
Date: Fri Oct  2 08:36:45 2015
New Revision: 228375

URL: https://gcc.gnu.org/viewcvs?rev=228375&root=gcc&view=rev
Log:
[RTL ifcvt] PR 67786, 67787: Check that intermediate instructions in the basic block don't clobber a reg used in condition

        PR rtl-optimization/67786
        PR rtl-optimization/67787
        * ifcvt.c (bb_valid_for_noce_process_p): Reject basic block if
        it modifies a reg used in the condition calculation.

        * gcc.dg/pr67786.c: New test.
        * gcc.dg/pr67787.c: Likewise.


Added:
    trunk/gcc/testsuite/gcc.dg/pr67786.c
    trunk/gcc/testsuite/gcc.dg/pr67787.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/ifcvt.c
    trunk/gcc/testsuite/ChangeLog