r236892 - in /trunk/gcc: ChangeLog doc/invoke.t...

[hubicka@gcc.gnu.org]

Author: hubicka
Date: Mon May 30 17:58:19 2016
New Revision: 236892

URL: https://gcc.gnu.org/viewcvs?rev=236892&root=gcc&view=rev
Log:

	* doc/invoke.texi (-fpeel-loops,-O3): Update documentation.
	* opts.c (default_options): Enable peel loops at -O3.
	* tree-ssa-loop-ivcanon.c (peeled_loops): New static var.
	(try_peel_loop): Do not re-peel already peeled loops;
	use likely upper bounds; fix profile updating.
	(pass_complete_unroll::execute): Initialize peeled_loops.

	* gcc.dg/tree-ssa/peel1.c: New testcase.
	* gcc.dg/tree-ssa/pr61743-1.c: Disable loop peeling.
	* gcc.dg/tree-ssa/pr61743-2.c: Disable loop peeling.

Added:
    trunk/gcc/testsuite/gcc.dg/tree-ssa/peel1.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/doc/invoke.texi
    trunk/gcc/opts.c
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/gcc.dg/tree-ssa/pr61743-1.c
    trunk/gcc/testsuite/gcc.dg/tree-ssa/pr61743-2.c
    trunk/gcc/tree-ssa-loop-ivcanon.c