r264400 - in /trunk/gcc: ChangeLog rtlanal.c

[segher@gcc.gnu.org]

Author: segher
Date: Tue Sep 18 16:19:56 2018
New Revision: 264400

URL: https://gcc.gnu.org/viewcvs?rev=264400&root=gcc&view=rev
Log:
Handle CLOBBER in reg_overlap_mentioned_p (PR86882)

Combine will put CLOBBER (with a non-void mode) anywhere in a pattern
to poison it.  reg_overlap_mentioned_p did not handle this.  This patch
fixes that.


	PR rtl-optimization/86882
	* rtlanal.c (reg_overlap_mentioned_p): Handle CLOBBER.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/rtlanal.c