r255678 - in /branches/gcc-7-branch/gcc: Change...

[rguenth@gcc.gnu.org]

Author: rguenth
Date: Fri Dec 15 08:19:15 2017
New Revision: 255678

URL: https://gcc.gnu.org/viewcvs?rev=255678&root=gcc&view=rev
Log:
2017-12-15  Richard Biener  <rguenther@suse.de>
 
	Backport from mainline
	2017-09-05  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/82102
	* tree-ssa-pre.c (eliminate): Check if lhs is NULL.

	* gcc.dg/torture/pr82102.c: New testcase.

	2017-09-13  Richard Biener  <rguenther@suse.de>

	PR middle-end/82128
	* gimple-fold.c (gimple_fold_call): Update SSA name in-place to
	default-def to avoid breaking iterator update with the weird
	interaction with cgraph_update_edges_for_call_stmt_node.

	* g++.dg/pr82128.C: New testcase.

Added:
    branches/gcc-7-branch/gcc/testsuite/g++.dg/pr82128.C
    branches/gcc-7-branch/gcc/testsuite/gcc.dg/torture/pr82102.c
Modified:
    branches/gcc-7-branch/gcc/ChangeLog
    branches/gcc-7-branch/gcc/gimple-fold.c
    branches/gcc-7-branch/gcc/testsuite/ChangeLog
    branches/gcc-7-branch/gcc/tree-ssa-pre.c