commit 7f079c13c77598060c58fccb1dd3d3eb2186c829
author rguenth <rguenth@138bc75d-0d04-0410-961f-82ee72b054a4> Wed Feb 13 14:22:06 2019 +0000
committer rguenth <rguenth@138bc75d-0d04-0410-961f-82ee72b054a4> Wed Feb 13 14:22:06 2019 +0000
tree 7ea9f6f3b57c09e546f2bd5a8d935aa583fe63c3
parent ed4528e876e6b34f35b5e6a141480e1dc17dbe2e

2019-02-13  Richard Biener  <rguenther@suse.de>

	Backport from mainline
	2019-01-08  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/86554
	* tree-ssa-sccvn.c (visit_nary_op): When value-numbering to
	expressions with different overflow behavior make sure there's an
	available expression on the path.

	* gcc.dg/torture/pr86554-1.c: New testcase.
	* gcc.dg/torture/pr86554-2.c: Likewise.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-8-branch@268846 138bc75d-0d04-0410-961f-82ee72b054a4