r244864 - in /branches/gcc-5-branch/gcc: Change...

[rguenth@gcc.gnu.org]

Author: rguenth
Date: Tue Jan 24 11:30:44 2017
New Revision: 244864

URL: https://gcc.gnu.org/viewcvs?rev=244864&root=gcc&view=rev
Log:
2017-01-24  Richard Biener  <rguenther@suse.de>

	Backport from mainline
	2016-09-20  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/77646
	* tree-ssa-sccvn.c (visit_reference_op_call): Always value-number
	a VDEF.

	* gcc.dg/torture/pr77646.c: New testcase.

	2016-11-05  David Edelsohn  <dje.gcc@gmail.com>
		Richard Biener  <rguenther@suse.de>

	PR bootstrap/78188
	PR c++/71848
	* ipa-comdats.c (pass_ipa_comdats::gate): Require HAVE_COMDAT_GROUP.

	* g++.dg/ipa/pr78188.C: New test.	

	2016-09-21  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/77648
	* tree-ssa-structalias.c (process_constraint): Handle all DEREF
	with complex RHS.
	(make_transitive_closure_constraints): Adjust comment.
	(make_any_offset_constraints): New function.
	(handle_rhs_call): Make sure to first expand a pointer to all
	subfields before transitively closing it.
	(handle_const_call): Likewise.  Properly expand returned
	pointers as well.
	(handle_pure_call): Likewise.

	* gcc.dg/torture/pr77648-1.c: New testcase.
	* gcc.dg/torture/pr77648-2.c: Likewise.

	2016-10-07  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/77879
	* tree-ssa-structalias.c (handle_const_call): Properly handle
	NRV return slots.
	(handle_pure_call): Likewise.

Added:
    branches/gcc-5-branch/gcc/testsuite/g++.dg/ipa/pr78188.C
    branches/gcc-5-branch/gcc/testsuite/gcc.dg/torture/pr77646.c
    branches/gcc-5-branch/gcc/testsuite/gcc.dg/torture/pr77648-1.c
    branches/gcc-5-branch/gcc/testsuite/gcc.dg/torture/pr77648-2.c
Modified:
    branches/gcc-5-branch/gcc/ChangeLog
    branches/gcc-5-branch/gcc/ipa-comdats.c
    branches/gcc-5-branch/gcc/testsuite/ChangeLog
    branches/gcc-5-branch/gcc/tree-ssa-sccvn.c
    branches/gcc-5-branch/gcc/tree-ssa-structalias.c