i860.c (i860_build_va_list): Create the va_decl declaration.

i860.c (i860_build_va_list): Create the va_decl declaration.

2003-08-22  Jason Eckhardt  <jle@rice.edu>

	* config/i860/i860.c (i860_build_va_list): Create the va_decl
	declaration.  Document the va_list structure.
	(i860_va_start): Initialize the va_list structure.
	(i860_va_arg): Rewrite completely.
	* config/i860/i860.h (LIBGCC_NEEDS_DOUBLE): Don't define.
	* config/i860/varargs.asm: Do not allocate or initialize
	a va_list.  Return the address of the register save area.

From-SVN: r70729