rs6000: Remove TM regs

rs6000: Remove TM regs

We do not need to expose the TM registers in debug info.  It isn't
actually useful there, because none of the things that can modify
these registers (other than explicit moves) are marked.

We also do not need the registers for GCC itself internally.  This
patch deletes them.

	* config/rs6000/rs6000.md (TFHAR_REGNO, TFIAR_REGNO, TEXASR_REGNO):
	Delete.
	* config/rs6000/rs6000.h (FIRST_PSEUDO_REGISTER): Adjust.
	(DWARF_FRAME_REGISTERS): Adjust.
	(FIXED_REGISTERS, CALL_USED_REGISTERS, CALL_REALLY_USED_REGISTERS):
	Adjust.
	(REG_ALLOC_ORDER): Adjust.
	(enum reg_class): Delete SPR_REGS.
	(REG_CLASS_NAMES): Delete SPR_REGS.
	(REG_CLASS_CONTENTS): Delete SPR_REGS.  Adjust for deleted TM regs.
	(REGISTER_NAMES): Adjust.
	(ADDITIONAL_REGISTER_NAMES): Adjust.
	* config/rs6000/darwin.h (REGISTER_NAMES): Adjust.
	* config/rs6000/htm.md (htm_mfspr_<mode>, htm_mtspr_<mode>): Adjust.
	* config/rs6000/predicates.md (htm_spr_reg_operand): Delete.
	* config/rs6000/rs6000.c (rs6000_init_hard_regno_mode_ok): Adjust.
	(htm_spr_regno): Delete.
	(htm_expand_builtin): Adjust: the HTM builtins now have one fewer
	argument.
	(rs6000_dbx_register_number): Adjust.

From-SVN: r270927