gcc/
	* 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.

From-SVN: r123106