r238367 - in /trunk/gcc: ChangeLog testsuite/Ch...

[amker@gcc.gnu.org]

Author: amker
Date: Fri Jul 15 09:04:57 2016
New Revision: 238367

URL: https://gcc.gnu.org/viewcvs?rev=238367&root=gcc&view=rev
Log:
	* tree-scalar-evolution.c (simple_iv_with_niters): New funcion.
	(derive_simple_iv_with_niters): New function.
	(simple_iv): Rewrite using simple_iv_with_niters.
	* tree-scalar-evolution.h (simple_iv_with_niters): New decl.
	* tree-ssa-loop-niter.c (number_of_iterations_exit_assumptions): New
	function.
	(number_of_iterations_exit): Rewrite using above function.
	* tree-ssa-loop-niter.h (number_of_iterations_exit_assumptions): New
	Decl.

	gcc/testsuite
	* gcc.dg/tree-ssa/loop-41.c: New test.

Added:
    trunk/gcc/testsuite/gcc.dg/tree-ssa/loop-41.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-scalar-evolution.c
    trunk/gcc/tree-scalar-evolution.h
    trunk/gcc/tree-ssa-loop-niter.c
    trunk/gcc/tree-ssa-loop-niter.h