From c291fffce1972fcfc631dd4c6f623e3f5055f74b Mon Sep 17 00:00:00 2001 From: gingerBill Date: Mon, 12 Feb 2024 12:29:37 +0000 Subject: Add metadata type to `map`s debug information to aid debuggers knowing what is in it it --- src/llvm_backend_debug.cpp | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'src/llvm_backend_debug.cpp') diff --git a/src/llvm_backend_debug.cpp b/src/llvm_backend_debug.cpp index e053c5b40..894c60729 100644 --- a/src/llvm_backend_debug.cpp +++ b/src/llvm_backend_debug.cpp @@ -710,7 +710,7 @@ gb_internal void lb_debug_complete_types(lbModule *m) { case Type_Map: GB_ASSERT(t_raw_map != nullptr); - bt = base_type(t_raw_map); + bt = base_type(t->Map.debug_metadata_type); /*fallthrough*/ case Type_Struct: if (file == nullptr) { -- cgit v1.2.3 From 5cd57a3a7f96e4966a7a17f99363893911fbad0d Mon Sep 17 00:00:00 2001 From: gingerBill Date: Tue, 13 Feb 2024 15:50:07 +0000 Subject: Use `Raw_Map` as the debug information for a `map` --- src/check_type.cpp | 2 ++ src/llvm_backend_debug.cpp | 4 +++- 2 files changed, 5 insertions(+), 1 deletion(-) (limited to 'src/llvm_backend_debug.cpp') diff --git a/src/check_type.cpp b/src/check_type.cpp index 01bb36255..03c7474fb 100644 --- a/src/check_type.cpp +++ b/src/check_type.cpp @@ -2307,6 +2307,7 @@ gb_internal void init_map_internal_types(Type *type) { metadata_type->Struct.fields[3] = alloc_entity_field(metadata_scope, make_token_ident("key_cell"), key_cell, false, 3, EntityState_Resolved); metadata_type->Struct.fields[4] = alloc_entity_field(metadata_scope, make_token_ident("value_cell"), value_cell, false, 4, EntityState_Resolved); metadata_type->Struct.scope = metadata_scope; + metadata_type->Struct.node = nullptr; gb_unused(type_size_of(metadata_type)); @@ -2323,6 +2324,7 @@ gb_internal void init_map_internal_types(Type *type) { debug_type->Struct.fields[2] = alloc_entity_field(scope, make_token_ident("allocator"), t_allocator, false, 2, EntityState_Resolved); debug_type->Struct.fields[3] = alloc_entity_field(scope, make_token_ident("__metadata"), metadata_type, false, 3, EntityState_Resolved); debug_type->Struct.scope = scope; + debug_type->Struct.node = nullptr; gb_unused(type_size_of(debug_type)); diff --git a/src/llvm_backend_debug.cpp b/src/llvm_backend_debug.cpp index 894c60729..6bcbac13f 100644 --- a/src/llvm_backend_debug.cpp +++ b/src/llvm_backend_debug.cpp @@ -710,7 +710,9 @@ gb_internal void lb_debug_complete_types(lbModule *m) { case Type_Map: GB_ASSERT(t_raw_map != nullptr); - bt = base_type(t->Map.debug_metadata_type); + // bt = base_type(t->Map.debug_metadata_type); + bt = base_type(t_raw_map); + GB_ASSERT(bt->kind == Type_Struct); /*fallthrough*/ case Type_Struct: if (file == nullptr) { -- cgit v1.2.3 From 912c326d8b05dba282a9a58e2405b09f774dbe34 Mon Sep 17 00:00:00 2001 From: gingerBill Date: Tue, 13 Feb 2024 17:06:04 +0000 Subject: Fix typo that causes map info debug issues --- src/llvm_backend_debug.cpp | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'src/llvm_backend_debug.cpp') diff --git a/src/llvm_backend_debug.cpp b/src/llvm_backend_debug.cpp index 6bcbac13f..f45cf0cbc 100644 --- a/src/llvm_backend_debug.cpp +++ b/src/llvm_backend_debug.cpp @@ -710,8 +710,8 @@ gb_internal void lb_debug_complete_types(lbModule *m) { case Type_Map: GB_ASSERT(t_raw_map != nullptr); - // bt = base_type(t->Map.debug_metadata_type); - bt = base_type(t_raw_map); + bt = base_type(bt->Map.debug_metadata_type); + // bt = base_type(t_raw_map); GB_ASSERT(bt->kind == Type_Struct); /*fallthrough*/ case Type_Struct: -- cgit v1.2.3 From a4b8c1ea1779ce93349b203aaf56c5aeca316b61 Mon Sep 17 00:00:00 2001 From: gingerBill Date: Thu, 22 Feb 2024 15:55:20 +0000 Subject: Begin work adding `bit_field` --- base/runtime/core.odin | 9 +++ base/runtime/print.odin | 14 ++++ core/encoding/json/marshal.odin | 3 + core/fmt/fmt.odin | 65 +++++++++++++++++ core/reflect/reflect.odin | 10 +++ core/reflect/types.odin | 31 ++++++++ src/check_type.cpp | 152 ++++++++++++++++++++++++++++++++++++++++ src/checker.cpp | 18 +++++ src/llvm_backend.cpp | 8 ++- src/llvm_backend_debug.cpp | 36 ++++++++++ src/llvm_backend_general.cpp | 4 +- src/llvm_backend_type.cpp | 67 ++++++++++++++++++ src/parser.cpp | 78 +++++++++++++++++++++ src/parser.hpp | 15 ++++ src/parser_pos.cpp | 3 + src/types.cpp | 24 +++++++ 16 files changed, 535 insertions(+), 2 deletions(-) (limited to 'src/llvm_backend_debug.cpp') diff --git a/base/runtime/core.odin b/base/runtime/core.odin index 85e64242d..dcc1e7476 100644 --- a/base/runtime/core.odin +++ b/base/runtime/core.odin @@ -181,6 +181,13 @@ Type_Info_Matrix :: struct { Type_Info_Soa_Pointer :: struct { elem: ^Type_Info, } +Type_Info_Bit_Field :: struct { + backing_type: ^Type_Info, + names: []string, + types: []^Type_Info, + bit_sizes: []uintptr, + bit_offsets: []uintptr, +} Type_Info_Flag :: enum u8 { Comparable = 0, @@ -223,6 +230,7 @@ Type_Info :: struct { Type_Info_Relative_Multi_Pointer, Type_Info_Matrix, Type_Info_Soa_Pointer, + Type_Info_Bit_Field, }, } @@ -256,6 +264,7 @@ Typeid_Kind :: enum u8 { Relative_Multi_Pointer, Matrix, Soa_Pointer, + Bit_Field, } #assert(len(Typeid_Kind) < 32) diff --git a/base/runtime/print.odin b/base/runtime/print.odin index 41ff9e1bb..c93c2ab49 100644 --- a/base/runtime/print.odin +++ b/base/runtime/print.odin @@ -459,6 +459,20 @@ print_type :: proc "contextless" (ti: ^Type_Info) { } print_byte(']') + case Type_Info_Bit_Field: + print_string("bit_field ") + print_type(info.backing_type) + print_string(" {") + for name, i in info.names { + if i > 0 { print_string(", ") } + print_string(name) + print_string(": ") + print_type(info.types[i]) + print_string(" | ") + print_u64(u64(info.bit_sizes[i])) + } + print_byte('}') + case Type_Info_Simd_Vector: print_string("#simd[") diff --git a/core/encoding/json/marshal.odin b/core/encoding/json/marshal.odin index e9285364b..e237892c3 100644 --- a/core/encoding/json/marshal.odin +++ b/core/encoding/json/marshal.odin @@ -228,6 +228,9 @@ marshal_to_writer :: proc(w: io.Writer, v: any, opt: ^Marshal_Options) -> (err: case runtime.Type_Info_Matrix: return .Unsupported_Type + case runtime.Type_Info_Bit_Field: + return .Unsupported_Type + case runtime.Type_Info_Array: opt_write_start(w, opt, '[') or_return for i in 0.. (res: u64) { + for i in 0.. 0 { + io.write_string(fi.writer, ", ") + } + if hash { + fmt_write_indent(fi) + } + + io.write_string(fi.writer, name, &fi.n) + io.write_string(fi.writer, " = ", &fi.n) + + + bit_offset := info.bit_offsets[i] + bit_size := info.bit_sizes[i] + + value := read_bits(([^]byte)(v.data), bit_offset, bit_size) + + fmt_value(fi, any{&value, info.types[i].id}, verb) + if do_trailing_comma { io.write_string(fi.writer, ",\n", &fi.n) } + + } +} + + + // Formats a value based on its type and formatting verb // // Inputs: @@ -2611,6 +2673,9 @@ fmt_value :: proc(fi: ^Info, v: any, verb: rune) { case runtime.Type_Info_Matrix: fmt_matrix(fi, v, verb, info) + + case runtime.Type_Info_Bit_Field: + fmt_bit_field(fi, v, verb, info) } } // Formats a complex number based on the given formatting verb diff --git a/core/reflect/reflect.odin b/core/reflect/reflect.odin index 0af23b18e..de5dec2e3 100644 --- a/core/reflect/reflect.odin +++ b/core/reflect/reflect.odin @@ -35,6 +35,7 @@ Type_Info_Relative_Pointer :: runtime.Type_Info_Relative_Pointer Type_Info_Relative_Multi_Pointer :: runtime.Type_Info_Relative_Multi_Pointer Type_Info_Matrix :: runtime.Type_Info_Matrix Type_Info_Soa_Pointer :: runtime.Type_Info_Soa_Pointer +Type_Info_Bit_Field :: runtime.Type_Info_Bit_Field Type_Info_Enum_Value :: runtime.Type_Info_Enum_Value @@ -70,6 +71,7 @@ Type_Kind :: enum { Relative_Multi_Pointer, Matrix, Soa_Pointer, + Bit_Field, } @@ -106,6 +108,7 @@ type_kind :: proc(T: typeid) -> Type_Kind { case Type_Info_Relative_Multi_Pointer: return .Relative_Multi_Pointer case Type_Info_Matrix: return .Matrix case Type_Info_Soa_Pointer: return .Soa_Pointer + case Type_Info_Bit_Field: return .Bit_Field } } @@ -1604,6 +1607,13 @@ equal :: proc(a, b: any, including_indirect_array_recursion := false, recursion_ } } return true + + case Type_Info_Bit_Field: + x, y := a, b + x.id = v.backing_type.id + y.id = v.backing_type.id + return equal(x, y, including_indirect_array_recursion, recursion_level+0) + } runtime.print_typeid(a.id) diff --git a/core/reflect/types.odin b/core/reflect/types.odin index cbe108d82..2b96dd4fb 100644 --- a/core/reflect/types.odin +++ b/core/reflect/types.odin @@ -174,6 +174,23 @@ are_types_identical :: proc(a, b: ^Type_Info) -> bool { if x.row_count != y.row_count { return false } if x.column_count != y.column_count { return false } return are_types_identical(x.elem, y.elem) + + case Type_Info_Bit_Field: + y := b.variant.(Type_Info_Bit_Field) or_return + if !are_types_identical(x.backing_type, y.backing_type) { return false } + if len(x.names) != len(y.names) { return false } + for _, i in x.names { + if x.names[i] != y.names[i] { + return false + } + if !are_types_identical(x.types[i], y.types[i]) { + return false + } + if x.bit_sizes[i] != y.bit_sizes[i] { + return false + } + } + return true } return false @@ -639,6 +656,20 @@ write_type_writer :: proc(w: io.Writer, ti: ^Type_Info, n_written: ^int = nil) - } io.write_byte(w, ']', &n) or_return + case Type_Info_Bit_Field: + io.write_string(w, "bit_field ", &n) or_return + write_type(w, info.backing_type, &n) or_return + io.write_string(w, " {", &n) or_return + for name, i in info.names { + if i > 0 { io.write_string(w, ", ", &n) or_return } + io.write_string(w, name, &n) or_return + io.write_string(w, ": ", &n) or_return + write_type(w, info.types[i], &n) or_return + io.write_string(w, " | ", &n) or_return + io.write_u64(w, u64(info.bit_sizes[i]), 10, &n) or_return + } + io.write_string(w, "}", &n) or_return + case Type_Info_Simd_Vector: io.write_string(w, "#simd[", &n) or_return io.write_i64(w, i64(info.count), 10, &n) or_return diff --git a/src/check_type.cpp b/src/check_type.cpp index 8a140d95e..8afac2fc5 100644 --- a/src/check_type.cpp +++ b/src/check_type.cpp @@ -925,6 +925,144 @@ gb_internal void check_enum_type(CheckerContext *ctx, Type *enum_type, Type *nam enum_type->Enum.max_value_index = max_value_index; } +gb_internal bool is_valid_bit_field_backing_type(Type *type) { + if (type == nullptr) { + return nullptr; + } + type = base_type(type); + if (is_type_untyped(type)) { + return false; + } + if (is_type_integer(type)) { + return true; + } + if (type->kind == Type_Array) { + return is_type_integer(type->Array.elem); + } + return false; +} + +gb_internal void check_bit_field_type(CheckerContext *ctx, Type *bit_field_type, Type *named_type, Ast *node) { + ast_node(bf, BitFieldType, node); + GB_ASSERT(is_type_bit_field(bit_field_type)); + + Type *backing_type = check_type(ctx, bf->backing_type); + if (backing_type == nullptr || !is_valid_bit_field_backing_type(backing_type)) { + error(node, "Backing type for a bit_field must be an integer or an array of an integer"); + return; + } + + bit_field_type->BitField.backing_type = backing_type; + bit_field_type->BitField.scope = ctx->scope; + + auto fields = array_make(permanent_allocator(), 0, bf->fields.count); + auto bit_sizes = array_make (permanent_allocator(), 0, bf->fields.count); + + u64 maximum_bit_size = 8 * type_size_of(backing_type); + u64 total_bit_size = 0; + + for_array(i, bf->fields) { + i32 field_src_index = cast(i32)i; + Ast *field = bf->fields[i]; + if (field->kind != Ast_BitFieldField) { + error(field, "Invalid AST for a bit_field"); + continue; + } + ast_node(f, BitFieldField, field); + if (f->name == nullptr || f->name->kind != Ast_Ident) { + error(field, "A bit_field's field name must be an identifier"); + continue; + } + CommentGroup *docs = f->docs; + CommentGroup *comment = f->comment; + + String name = f->name->Ident.token.string; + + if (f->type == nullptr) { + error(field, "A bit_field's field must have a type"); + continue; + } + + Type *type = check_type(ctx, f->type); + if (type_size_of(type) > 8) { + error(f->type, "The type of a bit_field's field must be <= 8 bytes, got %lld", cast(long long)type_size_of(type)); + } + + if (is_type_untyped(type)) { + gbString s = type_to_string(type); + error(f->type, "The type of a bit_field's field must be a typed integer, enum, or boolean, got %s", s); + gb_string_free(s); + } else if (!(is_type_integer(type) || is_type_enum(type) || is_type_boolean(type))) { + gbString s = type_to_string(type); + error(f->type, "The type of a bit_field's field must be an integer, enum, or boolean, got %s", s); + gb_string_free(s); + } + + if (f->bit_size == nullptr) { + error(field, "A bit_field's field must have a specified bit size"); + continue; + } + + + Operand o = {}; + check_expr(ctx, &o, f->bit_size); + if (o.mode != Addressing_Constant) { + error(f->bit_size, "A bit_field's specified bit size must be a constant"); + o.mode = Addressing_Invalid; + } + if (o.value.kind == ExactValue_Float) { + o.value = exact_value_to_integer(o.value); + } + + ExactValue bit_size = o.value; + + if (bit_size.kind != ExactValue_Integer) { + gbString s = expr_to_string(f->bit_size); + error(f->bit_size, "Expected an integer constant value for the specified bit size, got %s", s); + gb_string_free(s); + } + + if (scope_lookup_current(ctx->scope, name) != nullptr) { + error(f->name, "'%.*s' is already declared in this bit_field", LIT(name)); + } else { + i64 bit_size_i64 = exact_value_to_i64(bit_size); + u8 bit_size_u8 = 0; + if (bit_size_i64 <= 0) { + error(f->bit_size, "A bit_field's specified bit size cannot be <= 0, got %lld", cast(long long)bit_size_i64); + bit_size_i64 = 1; + } + if (bit_size_i64 > 64) { + error(f->bit_size, "A bit_field's specified bit size cannot exceed 64 bits, got %lld", cast(long long)bit_size_i64); + bit_size_i64 = 64; + } + bit_size_u8 = cast(u8)bit_size_i64; + + Entity *e = alloc_entity_field(ctx->scope, f->name->Ident.token, type, false, field_src_index); + e->Variable.docs = docs; + e->Variable.comment = comment; + + add_entity(ctx, ctx->scope, nullptr, e); + array_add(&fields, e); + array_add(&bit_sizes, bit_size_u8); + add_entity_use(ctx, field, e); + } + } + + GB_ASSERT(fields.count <= bf->fields.count); + + if (total_bit_size > maximum_bit_size) { + gbString s = type_to_string(backing_type); + error(node, "The numbers required %llu exceeds the backing type's (%s) bit size %llu", + cast(unsigned long long)total_bit_size, + s, + cast(unsigned long long)maximum_bit_size); + gb_string_free(s); + } + + bit_field_type->BitField.fields = slice_from_array(fields); + bit_field_type->BitField.bit_sizes = slice_from_array(bit_sizes); +} + gb_internal bool is_type_valid_bit_set_range(Type *t) { if (is_type_integer(t)) { return true; @@ -3051,6 +3189,20 @@ gb_internal bool check_type_internal(CheckerContext *ctx, Ast *e, Type **type, T return true; case_end; + case_ast_node(bf, BitFieldType, e); + bool ips = ctx->in_polymorphic_specialization; + defer (ctx->in_polymorphic_specialization = ips); + ctx->in_polymorphic_specialization = false; + + *type = alloc_type_bit_field(); + set_base_type(named_type, *type); + check_open_scope(ctx, e); + check_bit_field_type(ctx, *type, named_type, e); + check_close_scope(ctx); + (*type)->BitField.node = e; + return true; + case_end; + case_ast_node(pt, ProcType, e); bool ips = ctx->in_polymorphic_specialization; diff --git a/src/checker.cpp b/src/checker.cpp index 569a3c76f..5827fc695 100644 --- a/src/checker.cpp +++ b/src/checker.cpp @@ -313,6 +313,7 @@ gb_internal void add_scope(CheckerContext *c, Ast *node, Scope *scope) { case Ast_StructType: node->StructType.scope = scope; break; case Ast_UnionType: node->UnionType.scope = scope; break; case Ast_EnumType: node->EnumType.scope = scope; break; + case Ast_BitFieldType: node->BitFieldType.scope = scope; break; default: GB_PANIC("Invalid node for add_scope: %.*s", LIT(ast_strings[node->kind])); } } @@ -334,6 +335,7 @@ gb_internal Scope *scope_of_node(Ast *node) { case Ast_StructType: return node->StructType.scope; case Ast_UnionType: return node->UnionType.scope; case Ast_EnumType: return node->EnumType.scope; + case Ast_BitFieldType: return node->BitFieldType.scope; } GB_PANIC("Invalid node for add_scope: %.*s", LIT(ast_strings[node->kind])); return nullptr; @@ -355,6 +357,7 @@ gb_internal void check_open_scope(CheckerContext *c, Ast *node) { case Ast_EnumType: case Ast_UnionType: case Ast_BitSetType: + case Ast_BitFieldType: scope->flags |= ScopeFlag_Type; break; } @@ -2060,6 +2063,12 @@ gb_internal void add_type_info_type_internal(CheckerContext *c, Type *t) { add_type_info_type_internal(c, bt->SoaPointer.elem); break; + case Type_BitField: + add_type_info_type_internal(c, bt->BitField.backing_type); + for (Entity *f : bt->BitField.fields) { + add_type_info_type_internal(c, f->type); + } + break; case Type_Generic: break; @@ -2309,6 +2318,13 @@ gb_internal void add_min_dep_type_info(Checker *c, Type *t) { add_min_dep_type_info(c, bt->SoaPointer.elem); break; + case Type_BitField: + add_min_dep_type_info(c, bt->BitField.backing_type); + for (Entity *f : bt->BitField.fields) { + add_min_dep_type_info(c, f->type); + } + break; + default: GB_PANIC("Unhandled type: %*.s", LIT(type_strings[bt->kind])); break; @@ -2907,6 +2923,7 @@ gb_internal void init_core_type_info(Checker *c) { t_type_info_relative_multi_pointer = find_core_type(c, str_lit("Type_Info_Relative_Multi_Pointer")); t_type_info_matrix = find_core_type(c, str_lit("Type_Info_Matrix")); t_type_info_soa_pointer = find_core_type(c, str_lit("Type_Info_Soa_Pointer")); + t_type_info_bit_field = find_core_type(c, str_lit("Type_Info_Bit_Field")); t_type_info_named_ptr = alloc_type_pointer(t_type_info_named); t_type_info_integer_ptr = alloc_type_pointer(t_type_info_integer); @@ -2936,6 +2953,7 @@ gb_internal void init_core_type_info(Checker *c) { t_type_info_relative_multi_pointer_ptr = alloc_type_pointer(t_type_info_relative_multi_pointer); t_type_info_matrix_ptr = alloc_type_pointer(t_type_info_matrix); t_type_info_soa_pointer_ptr = alloc_type_pointer(t_type_info_soa_pointer); + t_type_info_bit_field_ptr = alloc_type_pointer(t_type_info_bit_field); } gb_internal void init_mem_allocator(Checker *c) { diff --git a/src/llvm_backend.cpp b/src/llvm_backend.cpp index fa76ac22f..45d903b43 100644 --- a/src/llvm_backend.cpp +++ b/src/llvm_backend.cpp @@ -2719,6 +2719,7 @@ gb_internal bool lb_generate_code(lbGenerator *gen) { { // Type info member buffer // NOTE(bill): Removes need for heap allocation by making it global memory isize count = 0; + isize offsets_extra = 0; for (Type *t : m->info->type_info_types) { isize index = lb_type_info_index(m->info, t, false); @@ -2736,6 +2737,11 @@ gb_internal bool lb_generate_code(lbGenerator *gen) { case Type_Tuple: count += t->Tuple.variables.count; break; + case Type_BitField: + count += t->BitField.fields.count; + // Twice is needed for the bit_offsets + offsets_extra += t->BitField.fields.count; + break; } } @@ -2752,7 +2758,7 @@ gb_internal bool lb_generate_code(lbGenerator *gen) { lb_global_type_info_member_types = global_type_info_make(m, LB_TYPE_INFO_TYPES_NAME, t_type_info_ptr, count); lb_global_type_info_member_names = global_type_info_make(m, LB_TYPE_INFO_NAMES_NAME, t_string, count); - lb_global_type_info_member_offsets = global_type_info_make(m, LB_TYPE_INFO_OFFSETS_NAME, t_uintptr, count); + lb_global_type_info_member_offsets = global_type_info_make(m, LB_TYPE_INFO_OFFSETS_NAME, t_uintptr, count+offsets_extra); lb_global_type_info_member_usings = global_type_info_make(m, LB_TYPE_INFO_USINGS_NAME, t_bool, count); lb_global_type_info_member_tags = global_type_info_make(m, LB_TYPE_INFO_TAGS_NAME, t_string, count); } diff --git a/src/llvm_backend_debug.cpp b/src/llvm_backend_debug.cpp index f45cf0cbc..7d3692a53 100644 --- a/src/llvm_backend_debug.cpp +++ b/src/llvm_backend_debug.cpp @@ -461,6 +461,42 @@ gb_internal LLVMMetadataRef lb_debug_type_internal(lbModule *m, Type *type) { lb_debug_type(m, type->Matrix.elem), subscripts, gb_count_of(subscripts)); } + + case Type_BitField: { + LLVMMetadataRef parent_scope = nullptr; + LLVMMetadataRef scope = nullptr; + LLVMMetadataRef file = nullptr; + unsigned line = 0; + u64 size_in_bits = 8*cast(u64)type_size_of(type); + u32 align_in_bits = 8*cast(u32)type_align_of(type); + LLVMDIFlags flags = LLVMDIFlagZero; + + unsigned element_count = cast(unsigned)type->BitField.fields.count; + LLVMMetadataRef *elements = gb_alloc_array(permanent_allocator(), LLVMMetadataRef, element_count); + + u64 offset_in_bits = 0; + for (unsigned i = 0; i < element_count; i++) { + Entity *f = type->BitField.fields[i]; + u8 bit_size = type->BitField.bit_sizes[i]; + GB_ASSERT(f->kind == Entity_Variable); + String name = f->token.string; + unsigned field_line = 0; + LLVMDIFlags field_flags = LLVMDIFlagZero; + elements[i] = LLVMDIBuilderCreateBitFieldMemberType(m->debug_builder, scope, cast(char const *)name.text, name.len, file, field_line, + bit_size, offset_in_bits, offset_in_bits, + field_flags, lb_debug_type(m, f->type) + ); + + offset_in_bits += bit_size; + } + + + return LLVMDIBuilderCreateStructType(m->debug_builder, parent_scope, "", 0, file, line, + size_in_bits, align_in_bits, flags, + nullptr, elements, element_count, 0, nullptr, + "", 0 + ); + } } GB_PANIC("Invalid type %s", type_to_string(type)); diff --git a/src/llvm_backend_general.cpp b/src/llvm_backend_general.cpp index f0f5327c6..2102420f8 100644 --- a/src/llvm_backend_general.cpp +++ b/src/llvm_backend_general.cpp @@ -2216,7 +2216,9 @@ gb_internal LLVMTypeRef lb_type_internal(lbModule *m, Type *type) { } return LLVMStructTypeInContext(ctx, fields, field_count, false); } - + + case Type_BitField: + return lb_type_internal(m, type->BitField.backing_type); } GB_PANIC("Invalid type %s", type_to_string(type)); diff --git a/src/llvm_backend_type.cpp b/src/llvm_backend_type.cpp index e291e40a5..3567a550b 100644 --- a/src/llvm_backend_type.cpp +++ b/src/llvm_backend_type.cpp @@ -1788,6 +1788,73 @@ gb_internal void lb_setup_type_info_data(lbProcedure *p) { // NOTE(bill): Setup lb_emit_store(p, tag, res); } break; + + case Type_BitField: + { + tag = lb_const_ptr_cast(m, variant_ptr, t_type_info_bit_field_ptr); + LLVMValueRef vals[5] = {}; + + vals[0] = lb_type_info(m, t->BitField.backing_type).value; + isize count = t->BitField.fields.count; + if (count > 0) { + i64 names_offset = 0; + i64 types_offset = 0; + i64 bit_sizes_offset = 0; + i64 bit_offsets_offset = 0; + lbValue memory_names = lb_type_info_member_names_offset (m, count, &names_offset); + lbValue memory_types = lb_type_info_member_types_offset (m, count, &types_offset); + lbValue memory_bit_sizes = lb_type_info_member_offsets_offset(m, count, &bit_sizes_offset); + lbValue memory_bit_offsets = lb_type_info_member_offsets_offset(m, count, &bit_offsets_offset); + + u64 bit_offset = 0; + for (isize source_index = 0; source_index < count; source_index++) { + Entity *f = t->BitField.fields[source_index]; + u64 bit_size = cast(u64)t->BitField.bit_sizes[source_index]; + + lbValue index = lb_const_int(m, t_int, source_index); + if (f->token.string.len > 0) { + lbValue name = lb_emit_ptr_offset(p, memory_names, index); + lb_emit_store(p, name, lb_const_string(m, f->token.string)); + } + lbValue type_ptr = lb_emit_ptr_offset(p, memory_types, index); + lbValue bit_size_ptr = lb_emit_ptr_offset(p, memory_bit_sizes, index); + lbValue bit_offset_ptr = lb_emit_ptr_offset(p, memory_bit_offsets, index); + + lb_emit_store(p, type_ptr, lb_type_info(m, f->type)); + lb_emit_store(p, bit_size_ptr, lb_const_int(m, t_uintptr, bit_size)); + lb_emit_store(p, bit_offset_ptr, lb_const_int(m, t_uintptr, bit_offset)); + + // lb_global_type_info_member_types_values [types_offset +source_index] = get_type_info_ptr(m, f->type); + // lb_global_type_info_member_offsets_values[bit_sizes_offset +source_index] = lb_const_int(m, t_uintptr, bit_size).value; + // lb_global_type_info_member_offsets_values[bit_offsets_offset+source_index] = lb_const_int(m, t_uintptr, bit_offset).value; + // if (f->token.string.len > 0) { + // lb_global_type_info_member_names_values[names_offset+source_index] = lb_const_string(m, f->token.string).value; + // } + + bit_offset += bit_size; + } + + lbValue cv = lb_const_int(m, t_int, count); + vals[1] = llvm_const_slice(m, memory_names, cv); + vals[2] = llvm_const_slice(m, memory_types, cv); + vals[3] = llvm_const_slice(m, memory_bit_sizes, cv); + vals[4] = llvm_const_slice(m, memory_bit_offsets, cv); + } + + for (isize i = 0; i < gb_count_of(vals); i++) { + if (vals[i] == nullptr) { + vals[i] = LLVMConstNull(lb_type(m, get_struct_field_type(tag.type, i))); + } + } + + lbValue res = {}; + res.type = type_deref(tag.type); + res.value = llvm_const_named_struct(m, res.type, vals, gb_count_of(vals)); + lb_emit_store(p, tag, res); + + break; + } + } diff --git a/src/parser.cpp b/src/parser.cpp index 78ac29dfd..70da9414d 100644 --- a/src/parser.cpp +++ b/src/parser.cpp @@ -350,6 +350,11 @@ gb_internal Ast *clone_ast(Ast *node, AstFile *f) { n->Field.names = clone_ast_array(n->Field.names, f); n->Field.type = clone_ast(n->Field.type, f); break; + case Ast_BitFieldField: + n->BitFieldField.name = clone_ast(n->BitFieldField.name, f); + n->BitFieldField.type = clone_ast(n->BitFieldField.type, f); + n->BitFieldField.bit_size = clone_ast(n->BitFieldField.bit_size, f); + break; case Ast_FieldList: n->FieldList.list = clone_ast_array(n->FieldList.list, f); break; @@ -406,6 +411,10 @@ gb_internal Ast *clone_ast(Ast *node, AstFile *f) { n->BitSetType.elem = clone_ast(n->BitSetType.elem, f); n->BitSetType.underlying = clone_ast(n->BitSetType.underlying, f); break; + case Ast_BitFieldType: + n->BitFieldType.backing_type = clone_ast(n->BitFieldType.backing_type, f); + n->BitFieldType.fields = clone_ast_array(n->BitFieldType.fields, f); + break; case Ast_MapType: n->MapType.count = clone_ast(n->MapType.count, f); n->MapType.key = clone_ast(n->MapType.key, f); @@ -1045,6 +1054,17 @@ gb_internal Ast *ast_field(AstFile *f, Array const &names, Ast *type, Ast return result; } +gb_internal Ast *ast_bit_field_field(AstFile *f, Ast *name, Ast *type, Ast *bit_size, + CommentGroup *docs, CommentGroup *comment) { + Ast *result = alloc_ast_node(f, Ast_BitFieldField); + result->BitFieldField.name = name; + result->BitFieldField.type = type; + result->BitFieldField.bit_size = bit_size; + result->BitFieldField.docs = docs; + result->BitFieldField.comment = comment; + return result; +} + gb_internal Ast *ast_field_list(AstFile *f, Token token, Array const &list) { Ast *result = alloc_ast_node(f, Ast_FieldList); result->FieldList.token = token; @@ -1178,6 +1198,17 @@ gb_internal Ast *ast_bit_set_type(AstFile *f, Token token, Ast *elem, Ast *under return result; } +gb_internal Ast *ast_bit_field_type(AstFile *f, Token token, Ast *backing_type, Token open, Array const &fields, Token close) { + Ast *result = alloc_ast_node(f, Ast_BitFieldType); + result->BitFieldType.token = token; + result->BitFieldType.backing_type = backing_type; + result->BitFieldType.open = open; + result->BitFieldType.fields = slice_from_array(fields); + result->BitFieldType.close = close; + return result; +} + + gb_internal Ast *ast_map_type(AstFile *f, Token token, Ast *key, Ast *value) { Ast *result = alloc_ast_node(f, Ast_MapType); result->MapType.token = token; @@ -2549,6 +2580,53 @@ gb_internal Ast *parse_operand(AstFile *f, bool lhs) { return ast_matrix_type(f, token, row_count, column_count, type); } break; + case Token_bit_field: { + Token token = expect_token(f, Token_bit_field); + isize prev_level; + + prev_level = f->expr_level; + f->expr_level = -1; + + Ast *backing_type = parse_type_or_ident(f); + if (backing_type == nullptr) { + Token token = advance_token(f); + syntax_error(token, "Expected a backing type for a 'bit_field'"); + backing_type = ast_bad_expr(f, token, f->curr_token); + } + + skip_possible_newline_for_literal(f); + Token open = expect_token_after(f, Token_OpenBrace, "bit_field"); + + + auto fields = array_make(ast_allocator(f), 0, 0); + + while (f->curr_token.kind != Token_CloseBrace && + f->curr_token.kind != Token_EOF) { + CommentGroup *docs = nullptr; + CommentGroup *comment = nullptr; + + Ast *name = parse_ident(f); + expect_token(f, Token_Colon); + Ast *type = parse_type(f); + expect_token(f, Token_Or); + Ast *bit_size = parse_expr(f, true); + + Ast *bf_field = ast_bit_field_field(f, name, type, bit_size, docs, comment); + array_add(&fields, bf_field); + + if (!allow_field_separator(f)) { + break; + } + } + + Token close = expect_closing_brace_of_field_list(f); + + f->expr_level = prev_level; + + return ast_bit_field_type(f, token, backing_type, open, fields, close); + } + + case Token_struct: { Token token = expect_token(f, Token_struct); Ast *polymorphic_params = nullptr; diff --git a/src/parser.hpp b/src/parser.hpp index 1edb1f9dd..ff77c88c7 100644 --- a/src/parser.hpp +++ b/src/parser.hpp @@ -650,6 +650,13 @@ AST_KIND(_DeclEnd, "", bool) \ CommentGroup * docs; \ CommentGroup * comment; \ }) \ + AST_KIND(BitFieldField, "bit field field", struct { \ + Ast * name; \ + Ast * type; \ + Ast * bit_size; \ + CommentGroup *docs; \ + CommentGroup *comment; \ + }) \ AST_KIND(FieldList, "field list", struct { \ Token token; \ Slice list; \ @@ -742,6 +749,14 @@ AST_KIND(_TypeBegin, "", bool) \ Ast * elem; \ Ast * underlying; \ }) \ + AST_KIND(BitFieldType, "bit field type", struct { \ + Scope *scope; \ + Token token; \ + Ast * backing_type; \ + Token open; \ + Slice fields; /* BitFieldField */ \ + Token close; \ + }) \ AST_KIND(MapType, "map type", struct { \ Token token; \ Ast *count; \ diff --git a/src/parser_pos.cpp b/src/parser_pos.cpp index f49c40f16..b2e12999b 100644 --- a/src/parser_pos.cpp +++ b/src/parser_pos.cpp @@ -111,6 +111,7 @@ gb_internal Token ast_token(Ast *node) { case Ast_UnionType: return node->UnionType.token; case Ast_EnumType: return node->EnumType.token; case Ast_BitSetType: return node->BitSetType.token; + case Ast_BitFieldType: return node->BitFieldType.token; case Ast_MapType: return node->MapType.token; case Ast_MatrixType: return node->MatrixType.token; } @@ -364,6 +365,8 @@ Token ast_end_token(Ast *node) { return ast_end_token(node->BitSetType.underlying); } return ast_end_token(node->BitSetType.elem); + case Ast_BitFieldType: + return node->BitFieldType.close; case Ast_MapType: return ast_end_token(node->MapType.value); case Ast_MatrixType: return ast_end_token(node->MatrixType.elem); } diff --git a/src/types.cpp b/src/types.cpp index 78d281715..1c28e6583 100644 --- a/src/types.cpp +++ b/src/types.cpp @@ -282,6 +282,13 @@ struct TypeProc { Type *generic_column_count; \ i64 stride_in_bytes; \ }) \ + TYPE_KIND(BitField, struct { \ + Scope * scope; \ + Type * backing_type; \ + Slice fields; \ + Slice bit_sizes; \ + Ast * node; \ + }) \ TYPE_KIND(SoaPointer, struct { Type *elem; }) @@ -355,6 +362,7 @@ enum Typeid_Kind : u8 { Typeid_Relative_Multi_Pointer, Typeid_Matrix, Typeid_SoaPointer, + Typeid_Bit_Field, }; // IMPORTANT NOTE(bill): This must match the same as the in core.odin @@ -641,6 +649,7 @@ gb_global Type *t_type_info_relative_pointer = nullptr; gb_global Type *t_type_info_relative_multi_pointer = nullptr; gb_global Type *t_type_info_matrix = nullptr; gb_global Type *t_type_info_soa_pointer = nullptr; +gb_global Type *t_type_info_bit_field = nullptr; gb_global Type *t_type_info_named_ptr = nullptr; gb_global Type *t_type_info_integer_ptr = nullptr; @@ -670,6 +679,7 @@ gb_global Type *t_type_info_relative_pointer_ptr = nullptr; gb_global Type *t_type_info_relative_multi_pointer_ptr = nullptr; gb_global Type *t_type_info_matrix_ptr = nullptr; gb_global Type *t_type_info_soa_pointer_ptr = nullptr; +gb_global Type *t_type_info_bit_field_ptr = nullptr; gb_global Type *t_allocator = nullptr; gb_global Type *t_allocator_ptr = nullptr; @@ -1040,6 +1050,11 @@ gb_internal Type *alloc_type_enum() { return t; } +gb_internal Type *alloc_type_bit_field() { + Type *t = alloc_type(Type_BitField); + return t; +} + gb_internal Type *alloc_type_relative_pointer(Type *pointer_type, Type *base_integer) { GB_ASSERT(is_type_pointer(pointer_type)); GB_ASSERT(is_type_integer(base_integer)); @@ -1707,6 +1722,10 @@ gb_internal bool is_type_bit_set(Type *t) { t = base_type(t); return (t->kind == Type_BitSet); } +gb_internal bool is_type_bit_field(Type *t) { + t = base_type(t); + return (t->kind == Type_BitField); +} gb_internal bool is_type_map(Type *t) { t = base_type(t); return t->kind == Type_Map; @@ -3568,6 +3587,8 @@ gb_internal i64 type_align_of_internal(Type *t, TypePath *path) { case Type_Slice: return build_context.int_size; + case Type_BitField: + return type_align_of_internal(t->BitField.backing_type, path); case Type_Tuple: { i64 max = 1; @@ -3943,6 +3964,9 @@ gb_internal i64 type_size_of_internal(Type *t, TypePath *path) { return stride_in_bytes * t->Matrix.column_count; } + case Type_BitField: + return type_size_of_internal(t->BitField.backing_type, path); + case Type_RelativePointer: return type_size_of_internal(t->RelativePointer.base_integer, path); case Type_RelativeMultiPointer: -- cgit v1.2.3