2005-12-16 Jon Grimm <jgrimm2@us.ibm.com> Janis Johnson <janis187@us.ibm.com> Ben Elliston <bje@au.ibm.com> * target-def.h (TARGET_DECIMAL_FLOAT_SUPPORTED_P): New. (TARGET_INITIALIZER): Add TARGET_DECIMAL_FLOAT_P. * target.h (struct gcc_target): Add decimal_float_supported_p. * targhooks.c (default_scalar_mode_supported_p): Handle MODE_DECIMAL_FLOAT. * builtins.def: Add new builtins for 32, 64 and 128 bit variants of inf, nan, finite, isinf and isnan. * builtin-types.def (BT_DFLOAT32, BT_DFLOAT64, BT_DFLOAT128, BT_DFLOAT32_PTR, BT_DFLOAT64_PTR, BT_DFLOAT128_PTR, BT_FN_DFLOAT32, BT_FN_DFLOAT64, BT_FN_DFLOAT128, BT_FN_INT_DFLOAT32, BT_FN_INT_DFLOAT64, BT_FN_INT_DFLOAT128, BT_FN_DFLOAT32_CONST_STRING, BT_FN_DFLOAT64_CONST_STRING, BT_FN_DFLOAT32_CONST_STRING, BT_FN_DFLOAT32_DFLOAT32, BT_FN_DFLOAT64_DFLOAT64, BT_FN_DFLOAT128_DFLOAT128): New. * c-decl.c (declspecs_add_type): Verify combos on type qualifiers. Pedwarn if decimal floating point types are used. Error if decimal floating point is not supported by the target. (finish_declspecs): Return type from DFP typespec_word. * c-typeck.c (c_common_type): Choose the decimal floating point type with the greater precision when determining a common type. (convert_arguments): Warn if there is a mismatch between argument and prototype for decimal float types. Warn of conversions with binary float types and of precision narrowing due to prototype. * c-parser.c (reswords): Add _Decimal32, _Decimal64, _Decimal128. (c_token_starts_typename): Handle RID_DFLOAT32/64/128. (c_token_starts_declspecs): Likewise. (c_parser_attributes): Likewise. * c-common.h (enum rid): Add new enumeration values RID_DFLOAT32, RID_DFLOAT64, RID_DFLOAT128. (T_D32, TEX_D32, T_D64, TEX_D64, T_D128, TEX_D128): New macros. * c-common.c (c_common_type_for_mode): Handle decimal float modes. (shorten_compare): Convert DFP/BFP operands to a common type. (c_common_modes_and_builtins): Register built-in decimal float types if the target supports them. (handle_mode_addtribute): Handle MODE_DECIMAL_FLOAT. * builtins.c (fold_builtin_1): Handle 32, 64 and 128 bit cases of inf, nan, finite, isinf and isnan builtins. * c-cppbuiltin.c (builtin_define_decimal_float_constants): New. (builtin_define_float_constants): Assert non-decimal radix. (c_cpp_builtins): Register built-in __DEC_EVAL_METHOD__ define. Call builtin_define_decimal_float_constants for each type. * c-lex.c (interpret_float): Decode decimal float types from CPP_N flags. Use real_from_string3, which can handle binary or decimal floats. * c-tree.h (enum c_typespec_keyword): Add cts_dfloat32, cts_dfloat64, cts_dfloat128. * tree.c (build_common_tree_nodes_2): Add decimal float types. * tree.h (enum tree_index): Add new enumeration values TI_DFLOAT32_TYPE, TI_DFLOAT64_TYPE, TI_DFLOAT128_TYPE, TI_DFLOAT32_PTR_TYPE, TI_DFLOAT64_PTR_TYPE, TI_DFLOAT128_PTR_TYPE. (dfloat32_type_node): New macro. (dfloat64_type_node, dfloat128_type_node): Likewise. (dfloat32_ptr_type_node, dfloat64_ptr_type_node): Likewise. (dfloat128_ptr_type_node): Likewise. * c-pretty-print.c (pp_c_floating_constant): Append 32, 64 and 128 bit decimal floating point types with "df", "dd" and "dl". * c-format.h (enum format_lengths): Add new enumeration values FMT_LEN_H, FMT_LEN_D and FMT_LEN_DD. * c-format.c (printf_length_specs, scanf_length_specs): Add entries for H, D, DD. (print_char_table, scan_char_table): Use new entries. (asm_fprintf_char_table, gcc_diag_char_table, gcc_cdiag_char_table, gcc_cxxdiag_char_table): Adjust for longer length arrays. * defaults.h (DECIMAL32_TYPE_SIZE): Define. (DECIMAL64_TYPE_SIZE): Likewise. (DECIMAL128_TYPE_SIZE): Likewise. (TARGET_DEC_EVAL_METHOD): Likewise. * doc/extend.texi (Decimal Float): New node. (Constructing Calls): Document decimal float built-ins. * doc/tm.texi: Document TARGET_DECIMAL_FLOAT_SUPPORTED_P hook. * Makefile.in (USER_H): Add $(srcdir)/ginclude/decfloat.h. * ginclude/decfloat.h: New file. Co-Authored-By: Ben Elliston <bje@au.ibm.com> Co-Authored-By: Janis Johnson <janis187@us.ibm.com> From-SVN: r108629
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