r112256 - in /trunk/gcc: ChangeLog testsuite/Ch...

[law@gcc.gnu.org]

Author: law
Date: Tue Mar 21 21:01:42 2006
New Revision: 112256

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=112256
Log:

	* tree-vrp.c (extract_range_from_unary_expr): Derive ranges for
	type conversions of a VR_VARYING source to a wider type.

	* gcc.dg/tree-ssa/vrp28.c: New test.


Added:
    trunk/gcc/testsuite/gcc.dg/tree-ssa/vrp28.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-vrp.c