Fix ifcvt on memory operands

[Richard Henderson]

On Tue, Jan 07, 2003 at 10:55:24PM +0100, Jan Hubicka wrote:
> 	* alias.c (memory_modified_1): New static function.
> 	(memory_modified): New static varaible.
> 	(memory_modified_in_insn_p): New global function.
> 	* rtl.h (memory_modified_in_insn_p): Declare.
> 	* rtlanal.c (modified_between_p, modified_in_p): Be smart about memory
> 	references.

Ok.



r~