configure.ac: Check for MIPS TLS.

	* configure.ac: Check for MIPS TLS.
	* configure: Regenerated.
	* config/mips/mips-protos.h (enum mips_symbol_type): Add
	SYMBOL_TLS, SYMBOL_TLSGD, SYMBOL_TLSLDM, SYMBOL_DTPREL,
	SYMBOL_GOTTPREL, and SYMBOL_TPREL.
	* config/mips/mips.c (mips_regno_to_class): Handle V1_REG.
	(TARGET_HAVE_TLS, TARGET_CANNOT_FORCE_CONST_MEM): Define.
	(mips_classify_symbol, mips_symbolic_constant_p)
	(mips_symbolic_address_p, mips_symbol_insns): Handle TLS symbols.
	(mips_tls_operand_p, mips_call_tls_get_addr)
	(mips_legitimize_tls_address, mips_cannot_force_const_mem)
	(mips_tls_symbol_ref_1): New functions.
	(mips_legitimize_address, mips_legitimize_const_move): Call
	mips_legitimize_tls_address.
	(override_options): Handle V1_REG and TLS symbols.  Disable TLS
	for MIPS16.
	* config/mips/mips.h (enum reg_class, REG_CLASS_NAMES)
	(REG_CLASS_CONTENTS, GR_REG_CLASS_P): Include V1_REG.
	(mips_char_to_class): Document V1_REG.
	(HAVE_AS_TLS): Provide default.
	* config/mips/mips.md (UNSPEC_TLS_LDM, UNSPEC_TLS_GET_TP): New
	constants.
	(load_got<mode>): Renamed from *load_got<mode>.  Allow when
	!TARGET_ABICALLS.
	(tls_get_tp_<mode>): New instruction.

Co-Authored-By: Joseph Myers <joseph@codesourcery.com>

From-SVN: r96380