r242835 - in /trunk/gcc: ChangeLog cfgloopmanip...

[rguenth@gcc.gnu.org]

Author: rguenth
Date: Thu Nov 24 12:25:22 2016
New Revision: 242835

URL: https://gcc.gnu.org/viewcvs?rev=242835&root=gcc&view=rev
Log:
2016-11-24  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/71595
	* cfgloopmanip.h (remove_path): Add irred_invalidated and
	loop_closed_ssa_invalidated parameters, defaulted to NULL.
	* cfgloopmanip.c (remove_path): Likewise, pass them along to
	called functions.  Only fix irred flags if the caller didn't
	request state.
	* tree-ssa-loop-ivcanon.c (unloop_loops): Use add_bb_to_loop.
	(unloop_loops): Pass irred_invalidated and loop_closed_ssa_invalidated
	to remove_path.

	* gcc.dg/torture/pr71595.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/torture/pr71595.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/cfgloopmanip.c
    trunk/gcc/cfgloopmanip.h
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa-loop-ivcanon.c