gas/

gas/
	* config/tc-mips.c (mips_cl_insn): Remove use_extend and extend.
	(MIPS16_EXTEND): New macro.
	(mips16_opcode_length): New function.
	(insn_length): Use it.
	(create_insn): Update after mips_cl_insn change.
	(write_compressed_insn): New function.
	(install_insn): Use it.
	(append_insn): Use insn_length to check for unextended MIPS16
	instructions.
	(mips16_macro_build): Update call to mips16_immed.
	(mips16_ip): Likewise.  Use MIPS16_EXTEND to force an extended
	instruction.
	(mips16_immed): Remove use_extend and extend; install EXTEND
	opcodes in the upper 16 bits of *INSN instead.  Keep the
	instruction extended if it already is.  Replace warn, small
	and ext with a forced_insn_length-like parameter.
	(md_convert_frag): Update call mips16_immed.
	Use write_compressed_insn.