r280006 - in /trunk/gcc: ChangeLog tree-eh.c

[rguenth@gcc.gnu.org]

Author: rguenth
Date: Wed Jan  8 14:30:44 2020
New Revision: 280006

URL: https://gcc.gnu.org/viewcvs?rev=280006&root=gcc&view=rev
Log:
2020-01-08  Richard Biener  <rguenther@suse.de>

	PR middle-end/93199
	* tree-eh.c (sink_clobbers): Update virtual operands for
	the first and last stmt only.  Add a dry-run capability.
	(pass_lower_eh_dispatch::execute): Perform clobber sinking
	after CFG manipulations and in RPO order to catch all
	secondary opportunities reliably.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/tree-eh.c