r202652 - in /trunk/gcc: ChangeLog fold-const.c...

[ktkachov@gcc.gnu.org]

Author: ktkachov
Date: Tue Sep 17 13:29:41 2013
New Revision: 202652

URL: http://gcc.gnu.org/viewcvs?rev=202652&root=gcc&view=rev
Log:
[gcc/]
2013-09-17  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

	PR tree-optimization/58088
	* fold-const.c (mask_with_trailing_zeros): New function.
	(fold_binary_loc): Make sure we don't recurse infinitely
	when the X in (X & C1) | C2 is a tree of the form (Y * K1) & K2.
	Use mask_with_trailing_zeros where appropriate.

[gcc/testsuite]
2013-09-17  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

	PR tree-optimization/58088
	* gcc.c-torture/compile/pr58088.c: New test.

Added:
    trunk/gcc/testsuite/gcc.c-torture/compile/pr58088.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/fold-const.c
    trunk/gcc/testsuite/ChangeLog