r146973 - in /trunk/gcc: ChangeLog testsuite/Ch...

Wed Apr 29 15:05:00 GMT 2009

Author: rguenth
Date: Wed Apr 29 15:05:22 2009
New Revision: 146973

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=146973
Log:
2009-04-29  Richard Guenther  <rguenther@suse.de>

	PR middle-end/39937
	* tree-ssa-forwprop.c (forward_propagate_addr_expr_1): Do not
	loose type conversions.
	(forward_propagate_addr_expr): Fix tuplification bug.  Remove
	stmts only if there are no uses of its definition.

	* gcc.c-torture/compile/pr39937.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.c-torture/compile/pr39937.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa-forwprop.c