r141949 - in /trunk/gcc: ChangeLog testsuite/Ch...

[jakub@gcc.gnu.org]

Author: jakub
Date: Mon Nov 17 20:58:52 2008
New Revision: 141949

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=141949
Log:
	PR middle-end/38140
	* tree-ssa-forwprop.c (forward_propagate_addr_expr_1): If
	propagating x = &a into *x = b, add a cast if not useless
	type conversion or don't optimize if another stmt would be
	needed.

	* gcc.dg/pr38140.c: New test.

Added:
    trunk/gcc/testsuite/gcc.dg/pr38140.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa-forwprop.c