backport: [multiple changes]

backport: [multiple changes]

2009-06-17  Richard Guenther  <rguenther@suse.de>

	Backport from mainline
	2009-03-16  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/39455
	* tree-ssa-loop-niter.c (number_of_iterations_lt_to_ne): Fix types
	mismatches for POINTER_TYPE_P (type).
	(number_of_iterations_le): Likewise.

	* gcc.dg/pr39455.c: New test.

	2009-05-19  Zdenek Dvorak  <ook@ucw.cz>

	PR tree-optimization/40087
	* tree-ssa-loop-niter.c (number_of_iterations_ne_max,
	number_of_iterations_ne): Rename never_infinite argument.
	(number_of_iterations_lt_to_ne, number_of_iterations_lt,
	number_of_iterations_le): Handle pointer-type ivs when
	exit_must_be_taken is false.
	(number_of_iterations_cond):  Do not always assume that
	exit_must_be_taken if the control variable is a pointer.

	* gcc.dg/tree-ssa/pr40087.c: New test.

From-SVN: r148625