* cppexp.c (cpp_num_mul): Remove unused parameter.

	(UNARY, BINARY, OTHER, binary_handler): Remove.
	(ALWAYS_EVAL): New.
	(optab): Update.
	(reduce): Refactor to a large switch, don't use a function
	pointer.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@55570 138bc75d-0d04-0410-961f-82ee72b054a4