[rtl, x86] Generalise FP constant define_splits

[Richard Henderson]

On Tue, Mar 20, 2007 at 04:24:06PM +0000, Richard Sandiford wrote:
> 	* rtl.h (constant_pool_reference_p): Delete.
> 	(find_constant_src): Declare.
> 	* rtlanal.c (find_constant_src): New function.
> 	* simplify-rtx.c (constant_pool_reference_p): Delete.
> 	* config/i386/i386.md: Use find_constant_src instead of
> 	constant_pool_reference_p/avoid_constant_pool_reference pairs.

Ok.


r~