r148593 - in /trunk/gcc: ChangeLog testsuite/Ch...

[rguenth@gcc.gnu.org]

Author: rguenth
Date: Wed Jun 17 10:26:24 2009
New Revision: 148593

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=148593
Log:
2009-06-17  Richard Guenther  <rguenther@suse.de>

	PR middle-end/40460
	* tree-chrec.h (build_polynomial_chrec): If we cannot determine
	if there is no evolution of left in the loop bail out.
	* tree-chrec.c (chrec_fold_multiply_poly_poly): CSE one
	chrec_fold_multiply.

	* g++.dg/torture/pr40460.C: New testcase.

Added:
    trunk/gcc/testsuite/g++.dg/torture/pr40460.C
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-chrec.c
    trunk/gcc/tree-chrec.h