r196767 - in /trunk/gcc: ChangeLog testsuite/Ch...

[jakub@gcc.gnu.org]

Author: jakub
Date: Mon Mar 18 07:10:33 2013
New Revision: 196767

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=196767
Log:
	PR c/56566
	* tree.c (tree_int_cst_min_precision): For integer_zerop (value)
	return 1 even for !unsignedp.

	* c-c++-common/pr56566.c: New test.

Added:
    trunk/gcc/testsuite/c-c++-common/pr56566.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree.c