* alpha/osf.h (TARGET_HAS_XFLOATING_LIBS): Define.
* alpha/osf5.h: New file.
* configure.in (alpha-*-osf5): Add it to tm_file.
* emit-rtl.c (operand_subword): Support TFmode on a 64-bit target.
* alpha-protos.h (alpha_emit_xfloating_arith): Declare.
(alpha_emit_xfloating_cvt, function_arg): Declare.
* alpha.c (alpha_emit_conditional_branch): Call
alpha_emit_xfloating_compare for TFmode compares.
(alpha_lookup_xfloating_lib_func): New.
(alpha_compute_xfloating_mode_arg): New.
(alpha_emit_xfloating_libcall): New.
(alpha_emit_xfloating_arith): New.
(alpha_emit_xfloating_compare): New.
(alpha_emit_xfloating_cvt): New.
(print_operand): Add default abort case.
(function_arg): Mind FUNCTION_ARG_PASS_BY_REFERENCE.
* alpha.h (TARGET_HAS_XFLOATING_LIBS): New.
(BIGGEST_ALIGNMENT): Increase to 128 bits.
(RETURN_IN_MEMORY): True for TF/TCmode.
(ALPHA_ARG_SIZE): TF/TCmode is passed indirect.
(FUNCTION_ARG): Move to function_arg.
(FUNCTION_ARG_PASS_BY_REFERENCE): New.
(ASM_OUTPUT_LONG_DOUBLE): New.
(ASM_OUTPUT_DOUBLE): Always output bits.
* alpha.md (addtf3, divtf3, multf3, subtf3, cmptf): New.
(fix_trunctfdi2, floatditf2, floatunsditf2): New.
(extenddftf2, trunctfdf2): New.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@31579
138bc75d-0d04-0410-961f-
82ee72b054a4