re PR bootstrap/66252 (bootstrap comparison failures on sparc-linux)

re PR bootstrap/66252 (bootstrap comparison failures on sparc-linux)

	PR bootstrap/66252
	* config/sparc/sparc.c (hard_regno_mode_classes): Add ??? comment.
	* config/sparc/sparc.md (zero_extendsidi2_insn_sp32): Use single order.
	(*addx_extend_sp32): Fix pasto.
	(*subx_extend): Rename into...
	(*subx_extend_sp32): ...this.
	(*adddi3_extend_sp32): Add earlyclobber.
	(*subdi3_insn_sp32): Likewise.
	(*subdi3_extend_sp32): Likewise.
	(*and_not_di_sp32): Likewise.
	(*or_not_di_sp32): Likewise.
	(*xor_not_di_sp32): Likewise.
	(*negdi2_sp32): Likewise.
	(*one_cmpldi2_sp32): Likewise.

From-SVN: r224386