| ... | ... | @@ -161,7 +161,12 @@ pub fn targetTriple(allocator: Allocator, target: std.Target) ![:0]u8 { |
| 161 | 161 | |
| 162 | 162 | pub const Object = struct { |
| 163 | 163 | llvm_module: *const llvm.Module, |
| 164 | | dibuilder: ?*llvm.DIBuilder, |
| 164 | di_builder: ?*llvm.DIBuilder, |
| 165 | /// One of these mappings: |
| 166 | /// - *Module.File => *DIFile |
| 167 | /// - *Module.Decl => *DISubprogram |
| 168 | di_map: std.AutoHashMapUnmanaged(*const anyopaque, *llvm.DIScope), |
| 169 | di_compile_unit: ?*llvm.DICompileUnit, |
| 165 | 170 | context: *const llvm.Context, |
| 166 | 171 | target_machine: *const llvm.TargetMachine, |
| 167 | 172 | target_data: *const llvm.TargetData, |
| ... | ... | @@ -224,16 +229,18 @@ pub const Object = struct { |
| 224 | 229 | } |
| 225 | 230 | |
| 226 | 231 | llvm_module.setTarget(llvm_target_triple.ptr); |
| 227 | | var opt_dbuilder: ?*llvm.DIBuilder = null; |
| 228 | | errdefer if (opt_dbuilder) |dibuilder| dibuilder.dispose(); |
| 232 | var opt_di_builder: ?*llvm.DIBuilder = null; |
| 233 | errdefer if (opt_di_builder) |di_builder| di_builder.dispose(); |
| 234 | |
| 235 | var di_compile_unit: ?*llvm.DICompileUnit = null; |
| 229 | 236 | |
| 230 | 237 | if (!options.strip) { |
| 231 | 238 | switch (options.object_format) { |
| 232 | 239 | .coff => llvm_module.addModuleCodeViewFlag(), |
| 233 | 240 | else => llvm_module.addModuleDebugInfoFlag(), |
| 234 | 241 | } |
| 235 | | const dibuilder = llvm_module.createDIBuilder(true); |
| 236 | | opt_dbuilder = dibuilder; |
| 242 | const di_builder = llvm_module.createDIBuilder(true); |
| 243 | opt_di_builder = di_builder; |
| 237 | 244 | |
| 238 | 245 | // Don't use the version string here; LLVM misparses it when it |
| 239 | 246 | // includes the git revision. |
| ... | ... | @@ -262,9 +269,9 @@ pub const Object = struct { |
| 262 | 269 | const compile_unit_dir_z = try gpa.dupeZ(u8, compile_unit_dir); |
| 263 | 270 | defer gpa.free(compile_unit_dir_z); |
| 264 | 271 | |
| 265 | | _ = dibuilder.createCompileUnit( |
| 272 | di_compile_unit = di_builder.createCompileUnit( |
| 266 | 273 | DW.LANG.C99, |
| 267 | | dibuilder.createFile(options.root_name, compile_unit_dir_z), |
| 274 | di_builder.createFile(options.root_name, compile_unit_dir_z), |
| 268 | 275 | producer, |
| 269 | 276 | options.optimize_mode != .Debug, |
| 270 | 277 | "", // flags |
| ... | ... | @@ -320,7 +327,9 @@ pub const Object = struct { |
| 320 | 327 | |
| 321 | 328 | return Object{ |
| 322 | 329 | .llvm_module = llvm_module, |
| 323 | | .dibuilder = opt_dbuilder, |
| 330 | .di_map = .{}, |
| 331 | .di_builder = opt_di_builder, |
| 332 | .di_compile_unit = di_compile_unit, |
| 324 | 333 | .context = context, |
| 325 | 334 | .target_machine = target_machine, |
| 326 | 335 | .target_data = target_data, |
| ... | ... | @@ -332,7 +341,10 @@ pub const Object = struct { |
| 332 | 341 | } |
| 333 | 342 | |
| 334 | 343 | pub fn deinit(self: *Object, gpa: Allocator) void { |
| 335 | | if (self.dibuilder) |dib| dib.dispose(); |
| 344 | if (self.di_builder) |dib| { |
| 345 | dib.dispose(); |
| 346 | self.di_map.deinit(gpa); |
| 347 | } |
| 336 | 348 | self.target_data.dispose(); |
| 337 | 349 | self.target_machine.dispose(); |
| 338 | 350 | self.llvm_module.dispose(); |
| ... | ... | @@ -413,6 +425,9 @@ pub const Object = struct { |
| 413 | 425 | |
| 414 | 426 | pub fn flushModule(self: *Object, comp: *Compilation) !void { |
| 415 | 427 | try self.genErrorNameTable(comp); |
| 428 | |
| 429 | if (self.di_builder) |dib| dib.finalize(); |
| 430 | |
| 416 | 431 | if (comp.verbose_llvm_ir) { |
| 417 | 432 | self.llvm_module.dump(); |
| 418 | 433 | } |
| ... | ... | @@ -526,8 +541,9 @@ pub const Object = struct { |
| 526 | 541 | const target = dg.module.getTarget(); |
| 527 | 542 | const sret = firstParamSRet(fn_info, target); |
| 528 | 543 | const ret_ptr = if (sret) llvm_func.getParam(0) else null; |
| 544 | const gpa = dg.gpa; |
| 529 | 545 | |
| 530 | | var args = std.ArrayList(*const llvm.Value).init(dg.gpa); |
| 546 | var args = std.ArrayList(*const llvm.Value).init(gpa); |
| 531 | 547 | defer args.deinit(); |
| 532 | 548 | |
| 533 | 549 | const param_offset: c_uint = @boolToInt(ret_ptr != null); |
| ... | ... | @@ -538,8 +554,53 @@ pub const Object = struct { |
| 538 | 554 | try args.append(llvm_func.getParam(llvm_arg_i)); |
| 539 | 555 | } |
| 540 | 556 | |
| 557 | var di_file: ?*llvm.DIFile = null; |
| 558 | var di_scope: ?*llvm.DIScope = null; |
| 559 | |
| 560 | if (dg.object.di_builder) |dib| { |
| 561 | di_file = s: { |
| 562 | const file = decl.src_namespace.file_scope; |
| 563 | const gop = try dg.object.di_map.getOrPut(gpa, file); |
| 564 | if (!gop.found_existing) { |
| 565 | const dir_path = file.pkg.root_src_directory.path orelse "."; |
| 566 | const sub_file_path_z = try gpa.dupeZ(u8, file.sub_file_path); |
| 567 | defer gpa.free(sub_file_path_z); |
| 568 | const dir_path_z = try gpa.dupeZ(u8, dir_path); |
| 569 | defer gpa.free(dir_path_z); |
| 570 | gop.value_ptr.* = dib.createFile(sub_file_path_z, dir_path_z).toScope(); |
| 571 | } |
| 572 | break :s @ptrCast(*llvm.DIFile, gop.value_ptr.*); |
| 573 | }; |
| 574 | |
| 575 | const line_number = decl.src_line + 1; |
| 576 | const is_internal_linkage = decl.val.tag() != .extern_fn and |
| 577 | !dg.module.decl_exports.contains(decl); |
| 578 | const noret_bit: c_uint = if (fn_info.return_type.isNoReturn()) |
| 579 | llvm.DIFlags.NoReturn |
| 580 | else |
| 581 | 0; |
| 582 | const subprogram = dib.createFunction( |
| 583 | di_file.?.toScope(), |
| 584 | decl.name, |
| 585 | llvm_func.getValueName(), |
| 586 | di_file.?, |
| 587 | line_number, |
| 588 | try dg.lowerDebugType(decl.ty), |
| 589 | is_internal_linkage, |
| 590 | true, // is definition |
| 591 | line_number + func.lbrace_line, // scope line |
| 592 | llvm.DIFlags.StaticMember | noret_bit, |
| 593 | dg.module.comp.bin_file.options.optimize_mode != .Debug, |
| 594 | null, // decl_subprogram |
| 595 | ); |
| 596 | |
| 597 | llvm_func.fnSetSubprogram(subprogram); |
| 598 | |
| 599 | di_scope = subprogram.toScope(); |
| 600 | } |
| 601 | |
| 541 | 602 | var fg: FuncGen = .{ |
| 542 | | .gpa = dg.gpa, |
| 603 | .gpa = gpa, |
| 543 | 604 | .air = air, |
| 544 | 605 | .liveness = liveness, |
| 545 | 606 | .context = dg.context, |
| ... | ... | @@ -552,6 +613,8 @@ pub const Object = struct { |
| 552 | 613 | .llvm_func = llvm_func, |
| 553 | 614 | .blocks = .{}, |
| 554 | 615 | .single_threaded = module.comp.bin_file.options.single_threaded, |
| 616 | .di_scope = di_scope, |
| 617 | .di_file = di_file, |
| 555 | 618 | }; |
| 556 | 619 | defer fg.deinit(); |
| 557 | 620 | |
| ... | ... | @@ -1827,6 +1890,418 @@ pub const DeclGen = struct { |
| 1827 | 1890 | } |
| 1828 | 1891 | } |
| 1829 | 1892 | |
| 1893 | fn lowerDebugType(dg: *DeclGen, ty: Type) Allocator.Error!*llvm.DIType { |
| 1894 | const gpa = dg.gpa; |
| 1895 | const target = dg.module.getTarget(); |
| 1896 | const dib = dg.object.di_builder.?; |
| 1897 | switch (ty.zigTypeTag()) { |
| 1898 | .Void, .NoReturn => return dib.createBasicType("void", 0, DW.ATE.signed), |
| 1899 | .Int => { |
| 1900 | const info = ty.intInfo(target); |
| 1901 | assert(info.bits != 0); |
| 1902 | const name = try ty.nameAlloc(gpa); // TODO this is a leak |
| 1903 | const dwarf_encoding: c_uint = switch (info.signedness) { |
| 1904 | .signed => DW.ATE.signed, |
| 1905 | .unsigned => DW.ATE.unsigned, |
| 1906 | }; |
| 1907 | return dib.createBasicType(name, info.bits, dwarf_encoding); |
| 1908 | }, |
| 1909 | .Enum => { |
| 1910 | @panic("TODO debug info type for enums"); |
| 1911 | //var buffer: Type.Payload.Bits = undefined; |
| 1912 | //const int_ty = ty.intTagType(&buffer); |
| 1913 | //const bit_count = int_ty.intInfo(target).bits; |
| 1914 | //assert(bit_count != 0); |
| 1915 | //return dg.context.intType(bit_count); |
| 1916 | }, |
| 1917 | .Float => { |
| 1918 | const bits = ty.floatBits(target); |
| 1919 | const name = try ty.nameAlloc(gpa); // TODO this is a leak |
| 1920 | return dib.createBasicType(name, bits, DW.ATE.float); |
| 1921 | }, |
| 1922 | .Bool => return dib.createBasicType("bool", 1, DW.ATE.boolean), |
| 1923 | .Pointer => { |
| 1924 | if (ty.isSlice()) { |
| 1925 | @panic("TODO debug info type for slices"); |
| 1926 | //var buf: Type.SlicePtrFieldTypeBuffer = undefined; |
| 1927 | //const ptr_type = ty.slicePtrFieldType(&buf); |
| 1928 | |
| 1929 | //const fields: [2]*const llvm.Type = .{ |
| 1930 | // try dg.llvmType(ptr_type), |
| 1931 | // try dg.llvmType(Type.usize), |
| 1932 | //}; |
| 1933 | //return dg.context.structType(&fields, fields.len, .False); |
| 1934 | } |
| 1935 | |
| 1936 | const ptr_info = ty.ptrInfo().data; |
| 1937 | const elem_di_ty = try lowerDebugType(dg, ptr_info.pointee_type); |
| 1938 | const name = try ty.nameAlloc(gpa); // TODO this is a leak |
| 1939 | return dib.createPointerType( |
| 1940 | elem_di_ty, |
| 1941 | target.cpu.arch.ptrBitWidth(), |
| 1942 | ty.ptrAlignment(target) * 8, |
| 1943 | name, |
| 1944 | ); |
| 1945 | }, |
| 1946 | .Opaque => { |
| 1947 | @panic("TODO debug info type for opaque"); |
| 1948 | }, |
| 1949 | .Array => { |
| 1950 | const elem_di_ty = try lowerDebugType(dg, ty.childType()); |
| 1951 | return dib.createArrayType( |
| 1952 | ty.abiSize(target) * 8, |
| 1953 | ty.abiAlignment(target) * 8, |
| 1954 | elem_di_ty, |
| 1955 | @intCast(c_int, ty.arrayLen()), |
| 1956 | ); |
| 1957 | }, |
| 1958 | .Vector => { |
| 1959 | @panic("TODO debug info type for vector"); |
| 1960 | }, |
| 1961 | .Optional => { |
| 1962 | @panic("TODO debug info type for optional"); |
| 1963 | //var buf: Type.Payload.ElemType = undefined; |
| 1964 | //const child_type = ty.optionalChild(&buf); |
| 1965 | //if (!child_type.hasRuntimeBits()) { |
| 1966 | // return dg.context.intType(1); |
| 1967 | //} |
| 1968 | //const payload_llvm_ty = try dg.llvmType(child_type); |
| 1969 | //if (ty.isPtrLikeOptional()) { |
| 1970 | // return payload_llvm_ty; |
| 1971 | //} else if (!child_type.hasRuntimeBits()) { |
| 1972 | // return dg.context.intType(1); |
| 1973 | //} |
| 1974 | |
| 1975 | //const fields: [2]*const llvm.Type = .{ |
| 1976 | // payload_llvm_ty, dg.context.intType(1), |
| 1977 | //}; |
| 1978 | //return dg.context.structType(&fields, fields.len, .False); |
| 1979 | }, |
| 1980 | .ErrorUnion => { |
| 1981 | const err_set_ty = ty.errorUnionSet(); |
| 1982 | const err_set_di_ty = try dg.lowerDebugType(err_set_ty); |
| 1983 | const payload_ty = ty.errorUnionPayload(); |
| 1984 | if (!payload_ty.hasRuntimeBits()) { |
| 1985 | return err_set_di_ty; |
| 1986 | } |
| 1987 | const payload_di_ty = try dg.lowerDebugType(payload_ty); |
| 1988 | |
| 1989 | const name = try ty.nameAlloc(gpa); // TODO this is a leak |
| 1990 | const di_file: ?*llvm.DIFile = null; |
| 1991 | const line = 0; |
| 1992 | const compile_unit_scope = dg.object.di_compile_unit.?.toScope(); |
| 1993 | const fwd_decl = dib.createReplaceableCompositeType( |
| 1994 | DW.TAG.structure_type, |
| 1995 | name.ptr, |
| 1996 | compile_unit_scope, |
| 1997 | di_file, |
| 1998 | line, |
| 1999 | ); |
| 2000 | |
| 2001 | const err_set_size = err_set_ty.abiSize(target); |
| 2002 | const err_set_align = err_set_ty.abiAlignment(target); |
| 2003 | const payload_size = payload_ty.abiSize(target); |
| 2004 | const payload_align = payload_ty.abiAlignment(target); |
| 2005 | |
| 2006 | var offset: u64 = 0; |
| 2007 | offset += err_set_size; |
| 2008 | offset = std.mem.alignForwardGeneric(u64, offset, payload_align); |
| 2009 | const payload_offset = offset; |
| 2010 | |
| 2011 | const fields: [2]*llvm.DIType = .{ |
| 2012 | dib.createMemberType( |
| 2013 | fwd_decl.toScope(), |
| 2014 | "tag", |
| 2015 | di_file, |
| 2016 | line, |
| 2017 | err_set_size * 8, // size in bits |
| 2018 | err_set_align * 8, // align in bits |
| 2019 | 0, // offset in bits |
| 2020 | 0, // flags |
| 2021 | err_set_di_ty, |
| 2022 | ), |
| 2023 | dib.createMemberType( |
| 2024 | fwd_decl.toScope(), |
| 2025 | "value", |
| 2026 | di_file, |
| 2027 | line, |
| 2028 | payload_size * 8, // size in bits |
| 2029 | payload_align * 8, // align in bits |
| 2030 | payload_offset * 8, // offset in bits |
| 2031 | 0, // flags |
| 2032 | payload_di_ty, |
| 2033 | ), |
| 2034 | }; |
| 2035 | |
| 2036 | const replacement_di_type = dib.createStructType( |
| 2037 | compile_unit_scope, |
| 2038 | name.ptr, |
| 2039 | di_file, |
| 2040 | line, |
| 2041 | ty.abiSize(target) * 8, // size in bits |
| 2042 | ty.abiAlignment(target) * 8, // align in bits |
| 2043 | 0, // flags |
| 2044 | null, // derived from |
| 2045 | &fields, |
| 2046 | fields.len, |
| 2047 | 0, // run time lang |
| 2048 | null, // vtable holder |
| 2049 | "", // unique id |
| 2050 | ); |
| 2051 | dib.replaceTemporary(fwd_decl, replacement_di_type); |
| 2052 | |
| 2053 | return replacement_di_type; |
| 2054 | }, |
| 2055 | .ErrorSet => { |
| 2056 | // TODO make this a proper enum with all the error codes in it. |
| 2057 | // will need to consider how to take incremental compilation into account. |
| 2058 | return dib.createBasicType("anyerror", 16, DW.ATE.unsigned); |
| 2059 | }, |
| 2060 | .Struct => { |
| 2061 | @panic("TODO debug info type for struct"); |
| 2062 | //const gop = try dg.object.type_map.getOrPut(gpa, ty); |
| 2063 | //if (gop.found_existing) return gop.value_ptr.*; |
| 2064 | |
| 2065 | //// The Type memory is ephemeral; since we want to store a longer-lived |
| 2066 | //// reference, we need to copy it here. |
| 2067 | //gop.key_ptr.* = try ty.copy(dg.object.type_map_arena.allocator()); |
| 2068 | |
| 2069 | //if (ty.isTupleOrAnonStruct()) { |
| 2070 | // const tuple = ty.tupleFields(); |
| 2071 | // const llvm_struct_ty = dg.context.structCreateNamed(""); |
| 2072 | // gop.value_ptr.* = llvm_struct_ty; // must be done before any recursive calls |
| 2073 | |
| 2074 | // var llvm_field_types: std.ArrayListUnmanaged(*const llvm.Type) = .{}; |
| 2075 | // defer llvm_field_types.deinit(gpa); |
| 2076 | |
| 2077 | // try llvm_field_types.ensureUnusedCapacity(gpa, tuple.types.len); |
| 2078 | |
| 2079 | // comptime assert(struct_layout_version == 2); |
| 2080 | // var offset: u64 = 0; |
| 2081 | // var big_align: u32 = 0; |
| 2082 | |
| 2083 | // for (tuple.types) |field_ty, i| { |
| 2084 | // const field_val = tuple.values[i]; |
| 2085 | // if (field_val.tag() != .unreachable_value) continue; |
| 2086 | |
| 2087 | // const field_align = field_ty.abiAlignment(target); |
| 2088 | // big_align = @maximum(big_align, field_align); |
| 2089 | // const prev_offset = offset; |
| 2090 | // offset = std.mem.alignForwardGeneric(u64, offset, field_align); |
| 2091 | |
| 2092 | // const padding_len = offset - prev_offset; |
| 2093 | // if (padding_len > 0) { |
| 2094 | // const llvm_array_ty = dg.context.intType(8).arrayType(@intCast(c_uint, padding_len)); |
| 2095 | // try llvm_field_types.append(gpa, llvm_array_ty); |
| 2096 | // } |
| 2097 | // const field_llvm_ty = try dg.llvmType(field_ty); |
| 2098 | // try llvm_field_types.append(gpa, field_llvm_ty); |
| 2099 | |
| 2100 | // offset += field_ty.abiSize(target); |
| 2101 | // } |
| 2102 | // { |
| 2103 | // const prev_offset = offset; |
| 2104 | // offset = std.mem.alignForwardGeneric(u64, offset, big_align); |
| 2105 | // const padding_len = offset - prev_offset; |
| 2106 | // if (padding_len > 0) { |
| 2107 | // const llvm_array_ty = dg.context.intType(8).arrayType(@intCast(c_uint, padding_len)); |
| 2108 | // try llvm_field_types.append(gpa, llvm_array_ty); |
| 2109 | // } |
| 2110 | // } |
| 2111 | |
| 2112 | // llvm_struct_ty.structSetBody( |
| 2113 | // llvm_field_types.items.ptr, |
| 2114 | // @intCast(c_uint, llvm_field_types.items.len), |
| 2115 | // .False, |
| 2116 | // ); |
| 2117 | |
| 2118 | // return llvm_struct_ty; |
| 2119 | //} |
| 2120 | |
| 2121 | //const struct_obj = ty.castTag(.@"struct").?.data; |
| 2122 | |
| 2123 | //if (struct_obj.layout == .Packed) { |
| 2124 | // var buf: Type.Payload.Bits = undefined; |
| 2125 | // const int_ty = struct_obj.packedIntegerType(target, &buf); |
| 2126 | // const int_llvm_ty = try dg.llvmType(int_ty); |
| 2127 | // gop.value_ptr.* = int_llvm_ty; |
| 2128 | // return int_llvm_ty; |
| 2129 | //} |
| 2130 | |
| 2131 | //const name = try struct_obj.getFullyQualifiedName(gpa); |
| 2132 | //defer gpa.free(name); |
| 2133 | |
| 2134 | //const llvm_struct_ty = dg.context.structCreateNamed(name); |
| 2135 | //gop.value_ptr.* = llvm_struct_ty; // must be done before any recursive calls |
| 2136 | |
| 2137 | //assert(struct_obj.haveFieldTypes()); |
| 2138 | |
| 2139 | //var llvm_field_types: std.ArrayListUnmanaged(*const llvm.Type) = .{}; |
| 2140 | //defer llvm_field_types.deinit(gpa); |
| 2141 | |
| 2142 | //try llvm_field_types.ensureUnusedCapacity(gpa, struct_obj.fields.count()); |
| 2143 | |
| 2144 | //comptime assert(struct_layout_version == 2); |
| 2145 | //var offset: u64 = 0; |
| 2146 | //var big_align: u32 = 0; |
| 2147 | |
| 2148 | //for (struct_obj.fields.values()) |field| { |
| 2149 | // if (field.is_comptime or !field.ty.hasRuntimeBits()) continue; |
| 2150 | |
| 2151 | // const field_align = field.normalAlignment(target); |
| 2152 | // big_align = @maximum(big_align, field_align); |
| 2153 | // const prev_offset = offset; |
| 2154 | // offset = std.mem.alignForwardGeneric(u64, offset, field_align); |
| 2155 | |
| 2156 | // const padding_len = offset - prev_offset; |
| 2157 | // if (padding_len > 0) { |
| 2158 | // const llvm_array_ty = dg.context.intType(8).arrayType(@intCast(c_uint, padding_len)); |
| 2159 | // try llvm_field_types.append(gpa, llvm_array_ty); |
| 2160 | // } |
| 2161 | // const field_llvm_ty = try dg.llvmType(field.ty); |
| 2162 | // try llvm_field_types.append(gpa, field_llvm_ty); |
| 2163 | |
| 2164 | // offset += field.ty.abiSize(target); |
| 2165 | //} |
| 2166 | //{ |
| 2167 | // const prev_offset = offset; |
| 2168 | // offset = std.mem.alignForwardGeneric(u64, offset, big_align); |
| 2169 | // const padding_len = offset - prev_offset; |
| 2170 | // if (padding_len > 0) { |
| 2171 | // const llvm_array_ty = dg.context.intType(8).arrayType(@intCast(c_uint, padding_len)); |
| 2172 | // try llvm_field_types.append(gpa, llvm_array_ty); |
| 2173 | // } |
| 2174 | //} |
| 2175 | |
| 2176 | //llvm_struct_ty.structSetBody( |
| 2177 | // llvm_field_types.items.ptr, |
| 2178 | // @intCast(c_uint, llvm_field_types.items.len), |
| 2179 | // .False, |
| 2180 | //); |
| 2181 | |
| 2182 | //return llvm_struct_ty; |
| 2183 | }, |
| 2184 | .Union => { |
| 2185 | @panic("TODO debug info type for union"); |
| 2186 | //const gop = try dg.object.type_map.getOrPut(gpa, ty); |
| 2187 | //if (gop.found_existing) return gop.value_ptr.*; |
| 2188 | |
| 2189 | //// The Type memory is ephemeral; since we want to store a longer-lived |
| 2190 | //// reference, we need to copy it here. |
| 2191 | //gop.key_ptr.* = try ty.copy(dg.object.type_map_arena.allocator()); |
| 2192 | |
| 2193 | //const layout = ty.unionGetLayout(target); |
| 2194 | //const union_obj = ty.cast(Type.Payload.Union).?.data; |
| 2195 | |
| 2196 | //if (layout.payload_size == 0) { |
| 2197 | // const enum_tag_llvm_ty = try dg.llvmType(union_obj.tag_ty); |
| 2198 | // gop.value_ptr.* = enum_tag_llvm_ty; |
| 2199 | // return enum_tag_llvm_ty; |
| 2200 | //} |
| 2201 | |
| 2202 | //const name = try union_obj.getFullyQualifiedName(gpa); |
| 2203 | //defer gpa.free(name); |
| 2204 | |
| 2205 | //const llvm_union_ty = dg.context.structCreateNamed(name); |
| 2206 | //gop.value_ptr.* = llvm_union_ty; // must be done before any recursive calls |
| 2207 | |
| 2208 | //const aligned_field = union_obj.fields.values()[layout.most_aligned_field]; |
| 2209 | //const llvm_aligned_field_ty = try dg.llvmType(aligned_field.ty); |
| 2210 | |
| 2211 | //const llvm_payload_ty = ty: { |
| 2212 | // if (layout.most_aligned_field_size == layout.payload_size) { |
| 2213 | // break :ty llvm_aligned_field_ty; |
| 2214 | // } |
| 2215 | // const padding_len = @intCast(c_uint, layout.payload_size - layout.most_aligned_field_size); |
| 2216 | // const fields: [2]*const llvm.Type = .{ |
| 2217 | // llvm_aligned_field_ty, |
| 2218 | // dg.context.intType(8).arrayType(padding_len), |
| 2219 | // }; |
| 2220 | // break :ty dg.context.structType(&fields, fields.len, .True); |
| 2221 | //}; |
| 2222 | |
| 2223 | //if (layout.tag_size == 0) { |
| 2224 | // var llvm_fields: [1]*const llvm.Type = .{llvm_payload_ty}; |
| 2225 | // llvm_union_ty.structSetBody(&llvm_fields, llvm_fields.len, .False); |
| 2226 | // return llvm_union_ty; |
| 2227 | //} |
| 2228 | //const enum_tag_llvm_ty = try dg.llvmType(union_obj.tag_ty); |
| 2229 | |
| 2230 | //// Put the tag before or after the payload depending on which one's |
| 2231 | //// alignment is greater. |
| 2232 | //var llvm_fields: [3]*const llvm.Type = undefined; |
| 2233 | //var llvm_fields_len: c_uint = 2; |
| 2234 | |
| 2235 | //if (layout.tag_align >= layout.payload_align) { |
| 2236 | // llvm_fields = .{ enum_tag_llvm_ty, llvm_payload_ty, undefined }; |
| 2237 | //} else { |
| 2238 | // llvm_fields = .{ llvm_payload_ty, enum_tag_llvm_ty, undefined }; |
| 2239 | //} |
| 2240 | |
| 2241 | //// Insert padding to make the LLVM struct ABI size match the Zig union ABI size. |
| 2242 | //if (layout.padding != 0) { |
| 2243 | // llvm_fields[2] = dg.context.intType(8).arrayType(layout.padding); |
| 2244 | // llvm_fields_len = 3; |
| 2245 | //} |
| 2246 | |
| 2247 | //llvm_union_ty.structSetBody(&llvm_fields, llvm_fields_len, .False); |
| 2248 | //return llvm_union_ty; |
| 2249 | }, |
| 2250 | .Fn => { |
| 2251 | const fn_info = ty.fnInfo(); |
| 2252 | const sret = firstParamSRet(fn_info, target); |
| 2253 | |
| 2254 | var param_di_types = std.ArrayList(*llvm.DIType).init(dg.gpa); |
| 2255 | defer param_di_types.deinit(); |
| 2256 | |
| 2257 | // Return type goes first. |
| 2258 | const di_ret_ty = if (sret) Type.void else fn_info.return_type; |
| 2259 | try param_di_types.append(try dg.lowerDebugType(di_ret_ty)); |
| 2260 | |
| 2261 | if (sret) { |
| 2262 | var ptr_ty_payload: Type.Payload.ElemType = .{ |
| 2263 | .base = .{ .tag = .single_mut_pointer }, |
| 2264 | .data = fn_info.return_type, |
| 2265 | }; |
| 2266 | const ptr_ty = Type.initPayload(&ptr_ty_payload.base); |
| 2267 | try param_di_types.append(try dg.lowerDebugType(ptr_ty)); |
| 2268 | } |
| 2269 | |
| 2270 | for (fn_info.param_types) |param_ty| { |
| 2271 | if (!param_ty.hasRuntimeBits()) continue; |
| 2272 | |
| 2273 | if (isByRef(param_ty)) { |
| 2274 | var ptr_ty_payload: Type.Payload.ElemType = .{ |
| 2275 | .base = .{ .tag = .single_mut_pointer }, |
| 2276 | .data = param_ty, |
| 2277 | }; |
| 2278 | const ptr_ty = Type.initPayload(&ptr_ty_payload.base); |
| 2279 | try param_di_types.append(try dg.lowerDebugType(ptr_ty)); |
| 2280 | } else { |
| 2281 | try param_di_types.append(try dg.lowerDebugType(param_ty)); |
| 2282 | } |
| 2283 | } |
| 2284 | |
| 2285 | return dib.createSubroutineType( |
| 2286 | param_di_types.items.ptr, |
| 2287 | @intCast(c_int, param_di_types.items.len), |
| 2288 | 0, |
| 2289 | ); |
| 2290 | }, |
| 2291 | .ComptimeInt => unreachable, |
| 2292 | .ComptimeFloat => unreachable, |
| 2293 | .Type => unreachable, |
| 2294 | .Undefined => unreachable, |
| 2295 | .Null => unreachable, |
| 2296 | .EnumLiteral => unreachable, |
| 2297 | |
| 2298 | .BoundFn => @panic("TODO remove BoundFn from the language"), |
| 2299 | |
| 2300 | .Frame => @panic("TODO implement lowerDebugType for Frame types"), |
| 2301 | .AnyFrame => @panic("TODO implement lowerDebugType for AnyFrame types"), |
| 2302 | } |
| 2303 | } |
| 2304 | |
| 1830 | 2305 | const ParentPtr = struct { |
| 1831 | 2306 | ty: Type, |
| 1832 | 2307 | llvm_ptr: *const llvm.Value, |
| ... | ... | @@ -2141,6 +2616,8 @@ pub const FuncGen = struct { |
| 2141 | 2616 | liveness: Liveness, |
| 2142 | 2617 | context: *const llvm.Context, |
| 2143 | 2618 | builder: *const llvm.Builder, |
| 2619 | di_scope: ?*llvm.DIScope, |
| 2620 | di_file: ?*llvm.DIFile, |
| 2144 | 2621 | |
| 2145 | 2622 | /// This stores the LLVM values used in a function, such that they can be referred to |
| 2146 | 2623 | /// in other instructions. This table is cleared before every function is generated. |
| ... | ... | @@ -2156,7 +2633,7 @@ pub const FuncGen = struct { |
| 2156 | 2633 | /// it omits 0-bit types. If the function uses sret as the first parameter, |
| 2157 | 2634 | /// this slice does not include it. |
| 2158 | 2635 | args: []const *const llvm.Value, |
| 2159 | | arg_index: usize, |
| 2636 | arg_index: c_uint, |
| 2160 | 2637 | |
| 2161 | 2638 | llvm_func: *const llvm.Value, |
| 2162 | 2639 | |
| ... | ... | @@ -2386,10 +2863,7 @@ pub const FuncGen = struct { |
| 2386 | 2863 | .constant => unreachable, |
| 2387 | 2864 | .const_ty => unreachable, |
| 2388 | 2865 | .unreach => self.airUnreach(inst), |
| 2389 | | .dbg_stmt => blk: { |
| 2390 | | // TODO: implement debug info |
| 2391 | | break :blk null; |
| 2392 | | }, |
| 2866 | .dbg_stmt => self.airDbgStmt(inst), |
| 2393 | 2867 | // zig fmt: on |
| 2394 | 2868 | }; |
| 2395 | 2869 | if (opt_value) |val| { |
| ... | ... | @@ -3099,6 +3573,17 @@ pub const FuncGen = struct { |
| 3099 | 3573 | return null; |
| 3100 | 3574 | } |
| 3101 | 3575 | |
| 3576 | fn airDbgStmt(self: *FuncGen, inst: Air.Inst.Index) ?*const llvm.Value { |
| 3577 | const di_scope = self.di_scope orelse return null; |
| 3578 | const dbg_stmt = self.air.instructions.items(.data)[inst].dbg_stmt; |
| 3579 | self.builder.setCurrentDebugLocation( |
| 3580 | @intCast(c_int, dbg_stmt.line + 1), |
| 3581 | @intCast(c_int, dbg_stmt.column + 1), |
| 3582 | di_scope, |
| 3583 | ); |
| 3584 | return null; |
| 3585 | } |
| 3586 | |
| 3102 | 3587 | fn airAssembly(self: *FuncGen, inst: Air.Inst.Index) !?*const llvm.Value { |
| 3103 | 3588 | // Eventually, the Zig compiler needs to be reworked to have inline assembly go |
| 3104 | 3589 | // through the same parsing code regardless of backend, and have LLVM-flavored |
| ... | ... | @@ -4299,15 +4784,31 @@ pub const FuncGen = struct { |
| 4299 | 4784 | self.arg_index += 1; |
| 4300 | 4785 | |
| 4301 | 4786 | const inst_ty = self.air.typeOfIndex(inst); |
| 4302 | | if (isByRef(inst_ty)) { |
| 4303 | | // TODO declare debug variable |
| 4304 | | return arg_val; |
| 4305 | | } else { |
| 4306 | | const ptr_val = self.buildAlloca(try self.dg.llvmType(inst_ty)); |
| 4307 | | _ = self.builder.buildStore(arg_val, ptr_val); |
| 4308 | | // TODO declare debug variable |
| 4309 | | return arg_val; |
| 4787 | const result = r: { |
| 4788 | if (isByRef(inst_ty)) { |
| 4789 | break :r arg_val; |
| 4790 | } else { |
| 4791 | const ptr_val = self.buildAlloca(try self.dg.llvmType(inst_ty)); |
| 4792 | _ = self.builder.buildStore(arg_val, ptr_val); |
| 4793 | break :r arg_val; |
| 4794 | } |
| 4795 | }; |
| 4796 | |
| 4797 | if (self.dg.object.di_builder) |dib| { |
| 4798 | const func = self.dg.decl.getFunction().?; |
| 4799 | _ = dib.createParameterVariable( |
| 4800 | self.di_scope.?, |
| 4801 | func.getParamName(self.arg_index - 1).ptr, // TODO test 0 bit args |
| 4802 | self.di_file.?, |
| 4803 | func.owner_decl.src_line + func.lbrace_line + 1, |
| 4804 | try self.dg.lowerDebugType(inst_ty), |
| 4805 | true, // always preserve |
| 4806 | 0, // flags |
| 4807 | self.arg_index, // includes +1 because 0 is return type |
| 4808 | ); |
| 4310 | 4809 | } |
| 4810 | |
| 4811 | return result; |
| 4311 | 4812 | } |
| 4312 | 4813 | |
| 4313 | 4814 | fn airAlloc(self: *FuncGen, inst: Air.Inst.Index) !?*const llvm.Value { |
| ... | ... | @@ -4830,7 +5331,7 @@ pub const FuncGen = struct { |
| 4830 | 5331 | const prev_debug_location = self.builder.getCurrentDebugLocation2(); |
| 4831 | 5332 | defer { |
| 4832 | 5333 | self.builder.positionBuilderAtEnd(prev_block); |
| 4833 | | if (!self.dg.module.comp.bin_file.options.strip) { |
| 5334 | if (self.di_scope != null) { |
| 4834 | 5335 | self.builder.setCurrentDebugLocation2(prev_debug_location); |
| 4835 | 5336 | } |
| 4836 | 5337 | } |
Andrew Kelley <andrew@ziglang.org> 2022-03-07 19:54:35-07:00
lib