invoke.texi (-msselibm): Document.

invoke.texi (-msselibm): Document.

2006-01-31  Richard Guenther  <rguenther@suse.de>

	* doc/invoke.texi (-msselibm): Document.
	* target.h (expand_library_builtin): New target hook.
	* builtins.c (expand_builtin): Use expand_library_builtin.
	(default_expand_library_builtin): New function.
	* gcc.c (LINK_GCC_MATH_SPEC): Define.
	(LINK_COMMAND_SPEC): Handle %(link_gcc_math).
	(link_gcc_math_spec): Declare.
	(static_specs): Add link_gcc_math_spec.
	* expr.h (default_expand_library_builtin): Declare.
	* target-def.h (TARGET_EXPAND_LIBRARY_BUILTIN): Define.
	(TARGET_INITIALIZER): Add TARGET_EXPAND_LIBRARY_BUILTIN.
	* config/i386/i386.h: Provide LINK_GCC_MATH_SPEC.
	* config/i386/i386.opt (msselibm): New target option.
	* config/i386/i386.c (ix86_builtin_function_variants): New array.
	(ix86_init_sse_abi_builtins): New function.
	(ix86_expand_library_builtin): Likewise.
	(TARGET_EXPAND_LIBRARY_BUILTIN): Define.
	(override_options): Handle error conditions wrt -msselibm.
	(ix86_builtins): Add function codes for SSE2 ABI builtins.
	(ix86_init_builtins): Call ix86_init_sse_abi_builtins.
	* doc/extend.texi (__builtin_sse2_*): Document new target specific
	builtins.

	* gcc.target/i386/sselibm-1.c: New testcase.
	* gcc.target/i386/sselibm-2.c: Likewise.
	* gcc.target/i386/sselibm-3.c: Likewise.
	* gcc.target/i386/sselibm-4.c: Likewise.
	* gcc.target/i386/sselibm-5.c: Likewise.

From-SVN: r110439