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1910ecf15b
The following patch adds _Decimal64x type support. Our dfp libraries (dpd & libbid) can only handle decimal32, decimal64 and decimal128 formats and I don't see that changing any time soon, so the following patch just hardcodes that _Decimal64x has the same mode as _Decimal128 (but is a distinct type). In the unlikely event some target would introduce something different that can be of course changed with target hooks but would be an ABI change. _Decimal128x is optional and we don't have a wider decimal type, so that type isn't added. 2024-11-15 Jakub Jelinek <jakub@redhat.com> gcc/ * tree-core.h (enum tree_index): Add TI_DFLOAT64X_TYPE. * tree.h (dfloat64x_type_node): Define. * tree.cc (build_common_tree_nodes): Initialize dfloat64x_type_node. * builtin-types.def (BT_DFLOAT64X): New DEF_PRIMITIVE_TYPE. (BT_FN_DFLOAT64X): New DEF_FUNCTION_TYPE_0. (BT_FN_DFLOAT64X_CONST_STRING, BT_FN_DFLOAT64X_DFLOAT64X): New DEF_FUNCTION_TYPE_1. * builtins.def (BUILT_IN_FABSD64X, BUILT_IN_INFD64X, BUILT_IN_NAND64X, BUILT_IN_NANSD64X): New builtins. * builtins.cc (expand_builtin): Handle BUILT_IN_FABSD64X. (fold_builtin_0): Handle BUILT_IN_INFD64X. (fold_builtin_1): Handle BUILT_IN_FABSD64X. * fold-const-call.cc (fold_const_call): Handle CFN_BUILT_IN_NAND64X and CFN_BUILT_IN_NANSD64X. * ginclude/float.h (DEC64X_MANT_DIG, DEC64X_MIN_EXP, DEC64X_MAX_EXP, DEC64X_MAX, DEC64X_EPSILON, DEC64X_MIN, DEC64X_TRUE_MIN, DEC64X_SNAN): Redefine. gcc/c-family/ * c-common.h (enum rid): Add RID_DFLOAT64X. * c-common.cc (c_global_trees): Fix comment typo. Add dfloat64x_type_node. (c_common_nodes_and_builtins): Handle RID_DFLOAT64X. * c-cppbuiltin.cc (c_cpp_builtins): Call builtin_define_decimal_float_constants also for dfloat64x_type_node if non-NULL. * c-lex.cc (interpret_float): Handle d64x suffixes. * c-pretty-print.cc (pp_c_floating_constant): Print d64x suffixes on dfloat64x_type_node typed constants. gcc/c/ * c-tree.h (enum c_typespec_keyword): Add cts_dfloat64x and adjust comment. * c-parser.cc (c_keyword_starts_typename, c_token_starts_declspecs, c_parser_declspecs, c_parser_gnu_attribute_any_word): Handle RID_DFLOAT64X. (c_parser_postfix_expression): Handle _Decimal64x arguments in __builtin_tgmath. (warn_for_abs): Handle BUILT_IN_FABSD64X. * c-decl.cc (declspecs_add_type): Handle cts_dfloat64x and RID_DFLOAT64X. (finish_declspecs): Handle cts_dfloat64x. * c-typeck.cc (c_common_type): Handle dfloat64x_type_node. gcc/testsuite/ * gcc.dg/dfp/c11-decimal64x-1.c: New test. * gcc.dg/dfp/c11-decimal64x-2.c: New test. * gcc.dg/dfp/c23-decimal64x-1.c: New test. * gcc.dg/dfp/c23-decimal64x-2.c: New test. * gcc.dg/dfp/c23-decimal64x-3.c: New test. * gcc.dg/dfp/c23-decimal64x-4.c: New test. libcpp/ * expr.cc (interpret_float_suffix): Handle d64x and D64x suffixes, adjust comment. |
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