gcc/

gcc/
	* optabs.c (libfunc_decls): New variable.
	(libfunc_decl_hash, libfunc_decl_eq): New functions.
	(init_one_libfunc): Reuse decls and SYMBOL_REFs when asked
	for the same function twice.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@137215 138bc75d-0d04-0410-961f-82ee72b054a4