2004-04-20  Uros Bizjak  <uros@kss-loka.si>

	* optabs.h (enum optab_index): Add new OTI_asin and OTI_acos.
	(asin_optab, acos_optab): Define corresponding macros.
	* optabs.c (init_optabs): Initialize asin_optab and acos_optab.
	* genopinit.c (optabs): Implement asin_optab and acos_optab
	using asin?f2 and acos?f2 patterns.
	* builtins.c (expand_builtin_mathfn): Handle BUILT_IN_ASIN{,F,L}
	using asin_optab, and BUILT_IN_ACOS{,F,L} using acos_optab.
	(expand_builtin): Expand BUILT_IN_ASIN{,F,L} and BUILT_IN_ACOS{,F,L}
	using expand_builtin_mathfn if flag_unsafe_math_optimizations is set.

	* config/i386/i386.md (asindf2, asinsf2, asinxf2, acosdf2,
	acossf2, acosxf2): New expanders to implement asin, asinf, asinl,
	acos, acosf and acosl built-ins as inline x87 intrinsics.

	* gcc.dg/builtins-39.c: New test.

From-SVN: r80921