[patch] calls.c, optabs.c: Remove multiple references to the libcall return reg.

[Richard Henderson]

On Tue, Sep 17, 2002 at 08:54:19AM -0400, Kazu Hirata wrote:
> + 	  result = gen_reg_rtx (TYPE_MODE (integer_type_node));
>   #ifdef TARGET_MEM_FUNCTIONS
> ! 	  emit_library_call_value (memcmp_libfunc, result, LCT_PURE_MAKE_BLOCK,
> ! 				   TYPE_MODE (integer_type_node), 3,
> ! 				   XEXP (x, 0), Pmode, XEXP (y, 0), Pmode,
> ! 				   convert_to_mode (TYPE_MODE (sizetype), size,
> ! 						    TREE_UNSIGNED (sizetype)),
> ! 				   TYPE_MODE (sizetype));

This should be

	result = emit_library_call_value (memcmp_libfunc, NULL_RTX, ...);

I.e. the return value of emit_library_call_value should always 
be honored.  And if we don't have a specific place it should go
already, you just use NULL_RTX and let the call generate the
target register.

The patch is ok with that change.


r~