re PR target/88502 (Inline built-in asinh, acosh, atanh for -ffast-math)

re PR target/88502 (Inline built-in asinh, acosh, atanh for -ffast-math)

	PR target/88502
	* internal-fn.def (ACOSH): New.
	(ASINH): Ditto.
	(ATANH): Ditto.
	* optabs.def (acosh_optab): New.
	(asinh_optab): Ditto.
	(atanh_optab): Ditto.
	* config/i386/i386-protos.h (ix86_emit_i387_asinh): New prototype.
	(ix86_emit_i387_acosh): Ditto.
	(ix86_emit_i387_atanh): Ditto.
	* config/i386/i386.c (ix86_emit_i387_asinh): New function.
	(ix86_emit_i387_acosh): Ditto.
	(ix86_emit_i387_atanh): Ditto.
	* config/i386/i386.md (asinhxf2): New expander.
	(asinh<mode>2):	Ditto.
	(acoshxf2): Ditto.
	(acosh<mode>2): Ditto.
	(atanhxf2): Ditto.
	(atanh<mode>2): Ditto.

From-SVN: r267204