regmove.c (record_stack_memrefs): Catch all references to the stack pointer.

regmove.c (record_stack_memrefs): Catch all references to the stack pointer.

	* regmove.c (record_stack_memrefs): Catch all references to the
	stack pointer.

	* optimize.c (update_cloned_parm): New function.
	(maybe_clone_body): Use it.  Update the `this' parameter too.

	* gcc.dg/20000724-1.c: Add a clobber of `esp'.

From-SVN: r41687