diff --git a/compiler/rustc_codegen_llvm/src/debuginfo/metadata.rs b/compiler/rustc_codegen_llvm/src/debuginfo/metadata.rs index 98d59f5a8ae06..2eaaf127e41ea 100644 --- a/compiler/rustc_codegen_llvm/src/debuginfo/metadata.rs +++ b/compiler/rustc_codegen_llvm/src/debuginfo/metadata.rs @@ -2,6 +2,7 @@ use std::borrow::Cow; use std::fmt::{self, Write}; use std::hash::{Hash, Hasher}; use std::path::{Path, PathBuf}; +use std::sync::Arc; use std::{iter, ptr}; use libc::{c_char, c_longlong, c_uint}; @@ -38,8 +39,8 @@ use crate::debuginfo::metadata::type_map::build_type_with_children; use crate::debuginfo::utils::{WidePtrKind, wide_pointer_kind}; use crate::llvm; use crate::llvm::debuginfo::{ - DIDescriptor, DIFile, DIFlags, DILexicalBlock, DIScope, DIType, DebugEmissionKind, - DebugNameTableKind, + DIBasicType, DIBuilder, DICompositeType, DIDescriptor, DIFile, DIFlags, DILexicalBlock, + DIScope, DIType, DebugEmissionKind, DebugNameTableKind, }; use crate::value::Value; @@ -68,7 +69,8 @@ pub(super) const UNKNOWN_COLUMN_NUMBER: c_uint = 0; const NO_SCOPE_METADATA: Option<&DIScope> = None; /// A function that returns an empty list of generic parameter debuginfo nodes. -const NO_GENERICS: for<'ll> fn(&CodegenCx<'ll, '_>) -> SmallVec<&'ll DIType> = |_| SmallVec::new(); +const NO_GENERICS: for<'ll> fn(&CodegenCx<'ll, '_>) -> SmallVec> = + |_| SmallVec::new(); // SmallVec is used quite a bit in this module, so create a shorthand. // The actual number of elements is not so important. @@ -243,7 +245,7 @@ fn build_pointer_or_reference_di_node<'ll, 'tcx>( cx, owner, addr_field_name, - (addr_field.size, addr_field.align.abi), + addr_field, layout.fields.offset(WIDE_PTR_ADDR), DIFlags::FlagZero, data_ptr_type_di_node, @@ -253,7 +255,7 @@ fn build_pointer_or_reference_di_node<'ll, 'tcx>( cx, owner, extra_field_name, - (extra_field.size, extra_field.align.abi), + extra_field, layout.fields.offset(WIDE_PTR_EXTRA), DIFlags::FlagZero, type_di_node(cx, extra_field.ty), @@ -311,12 +313,7 @@ fn build_subroutine_type_di_node<'ll, 'tcx>( debug_context(cx).type_map.unique_id_to_di_node.borrow_mut().remove(&unique_type_id); - let fn_di_node = unsafe { - llvm::LLVMRustDIBuilderCreateSubroutineType( - DIB(cx), - create_DIArray(DIB(cx), &signature_di_nodes[..]), - ) - }; + let fn_di_node = create_subroutine_type(cx, create_DIArray(DIB(cx), &signature_di_nodes[..])); // This is actually a function pointer, so wrap it in pointer DI. let name = compute_debuginfo_type_name(cx.tcx, fn_ty, false); @@ -340,6 +337,13 @@ fn build_subroutine_type_di_node<'ll, 'tcx>( DINodeCreationResult::new(di_node, false) } +pub(super) fn create_subroutine_type<'ll>( + cx: &CodegenCx<'ll, '_>, + signature: &'ll DICompositeType, +) -> &'ll DICompositeType { + unsafe { llvm::LLVMRustDIBuilderCreateSubroutineType(DIB(cx), signature) } +} + /// Create debuginfo for `dyn SomeTrait` types. Currently these are empty structs /// we with the correct type name (e.g. "dyn SomeTrait + Sync"). fn build_dyn_type_di_node<'ll, 'tcx>( @@ -487,26 +491,22 @@ pub(crate) fn type_di_node<'ll, 'tcx>(cx: &CodegenCx<'ll, 'tcx>, t: Ty<'tcx>) -> // FIXME(mw): Cache this via a regular UniqueTypeId instead of an extra field in the debug context. fn recursion_marker_type_di_node<'ll, 'tcx>(cx: &CodegenCx<'ll, 'tcx>) -> &'ll DIType { *debug_context(cx).recursion_marker_type.get_or_init(move || { - unsafe { - // The choice of type here is pretty arbitrary - - // anything reading the debuginfo for a recursive - // type is going to see *something* weird - the only - // question is what exactly it will see. - // - // FIXME: the name `` does not fit the naming scheme - // of other types. - // - // FIXME: it might make sense to use an actual pointer type here - // so that debuggers can show the address. - let name = ""; - llvm::LLVMRustDIBuilderCreateBasicType( - DIB(cx), - name.as_c_char_ptr(), - name.len(), - cx.tcx.data_layout.pointer_size.bits(), - dwarf_const::DW_ATE_unsigned, - ) - } + // The choice of type here is pretty arbitrary - + // anything reading the debuginfo for a recursive + // type is going to see *something* weird - the only + // question is what exactly it will see. + // + // FIXME: the name `` does not fit the naming scheme + // of other types. + // + // FIXME: it might make sense to use an actual pointer type here + // so that debuggers can show the address. + create_basic_type( + cx, + "", + cx.tcx.data_layout.pointer_size, + dwarf_const::DW_ATE_unsigned, + ) }) } @@ -620,42 +620,38 @@ pub(crate) fn file_metadata<'ll>(cx: &CodegenCx<'ll, '_>, source_file: &SourceFi let source = cx.sess().opts.unstable_opts.embed_source.then_some(()).and(source_file.src.as_ref()); - unsafe { - llvm::LLVMRustDIBuilderCreateFile( - DIB(cx), - file_name.as_c_char_ptr(), - file_name.len(), - directory.as_c_char_ptr(), - directory.len(), - hash_kind, - hash_value.as_c_char_ptr(), - hash_value.len(), - source.map_or(ptr::null(), |x| x.as_c_char_ptr()), - source.map_or(0, |x| x.len()), - ) - } + create_file(DIB(cx), &file_name, &directory, &hash_value, hash_kind, source) } } fn unknown_file_metadata<'ll>(cx: &CodegenCx<'ll, '_>) -> &'ll DIFile { - debug_context(cx).created_files.borrow_mut().entry(None).or_insert_with(|| unsafe { - let file_name = ""; - let directory = ""; - let hash_value = ""; + debug_context(cx).created_files.borrow_mut().entry(None).or_insert_with(|| { + create_file(DIB(cx), "", "", "", llvm::ChecksumKind::None, None) + }) +} +fn create_file<'ll>( + builder: &DIBuilder<'ll>, + file_name: &str, + directory: &str, + hash_value: &str, + hash_kind: llvm::ChecksumKind, + source: Option<&Arc>, +) -> &'ll DIFile { + unsafe { llvm::LLVMRustDIBuilderCreateFile( - DIB(cx), + builder, file_name.as_c_char_ptr(), file_name.len(), directory.as_c_char_ptr(), directory.len(), - llvm::ChecksumKind::None, + hash_kind, hash_value.as_c_char_ptr(), hash_value.len(), - ptr::null(), - 0, + source.map_or(ptr::null(), |x| x.as_c_char_ptr()), + source.map_or(0, |x| x.len()), ) - }) + } } trait MsvcBasicName { @@ -742,7 +738,7 @@ fn build_cpp_f16_di_node<'ll, 'tcx>(cx: &CodegenCx<'ll, 'tcx>) -> DINodeCreation cx, float_di_node, "bits", - cx.size_and_align_of(bits_ty), + cx.layout_of(bits_ty), Size::ZERO, DIFlags::FlagZero, type_di_node(cx, bits_ty), @@ -788,15 +784,7 @@ fn build_basic_type_di_node<'ll, 'tcx>( _ => bug!("debuginfo::build_basic_type_di_node - `t` is invalid type"), }; - let ty_di_node = unsafe { - llvm::LLVMRustDIBuilderCreateBasicType( - DIB(cx), - name.as_c_char_ptr(), - name.len(), - cx.size_of(t).bits(), - encoding, - ) - }; + let ty_di_node = create_basic_type(cx, name, cx.size_of(t), encoding); if !cpp_like_debuginfo { return DINodeCreationResult::new(ty_di_node, false); @@ -824,6 +812,23 @@ fn build_basic_type_di_node<'ll, 'tcx>( DINodeCreationResult::new(typedef_di_node, false) } +fn create_basic_type<'ll, 'tcx>( + cx: &CodegenCx<'ll, 'tcx>, + name: &str, + size: Size, + encoding: u32, +) -> &'ll DIBasicType { + unsafe { + llvm::LLVMRustDIBuilderCreateBasicType( + DIB(cx), + name.as_c_char_ptr(), + name.len(), + size.bits(), + encoding, + ) + } +} + fn build_foreign_type_di_node<'ll, 'tcx>( cx: &CodegenCx<'ll, 'tcx>, t: Ty<'tcx>, @@ -929,17 +934,13 @@ pub(crate) fn build_compile_unit_di_node<'ll, 'tcx>( }; unsafe { - let compile_unit_file = llvm::LLVMRustDIBuilderCreateFile( + let compile_unit_file = create_file( debug_context.builder.as_ref(), - name_in_debuginfo.as_c_char_ptr(), - name_in_debuginfo.len(), - work_dir.as_c_char_ptr(), - work_dir.len(), + &name_in_debuginfo, + &work_dir, + "", llvm::ChecksumKind::None, - ptr::null(), - 0, - ptr::null(), - 0, + None, ); let unit_metadata = llvm::LLVMRustDIBuilderCreateCompileUnit( @@ -971,7 +972,7 @@ fn build_field_di_node<'ll, 'tcx>( cx: &CodegenCx<'ll, 'tcx>, owner: &'ll DIScope, name: &str, - size_and_align: (Size, Align), + layout: TyAndLayout<'tcx>, offset: Size, flags: DIFlags, type_di_node: &'ll DIType, @@ -983,6 +984,30 @@ fn build_field_di_node<'ll, 'tcx>( } else { (unknown_file_metadata(cx), UNKNOWN_LINE_NUMBER) }; + create_member_type( + cx, + owner, + name, + file_metadata, + line_number, + layout, + offset, + flags, + type_di_node, + ) +} + +fn create_member_type<'ll, 'tcx>( + cx: &CodegenCx<'ll, 'tcx>, + owner: &'ll DIScope, + name: &str, + file_metadata: &'ll DIType, + line_number: u32, + layout: TyAndLayout<'tcx>, + offset: Size, + flags: DIFlags, + type_di_node: &'ll DIType, +) -> &'ll DIType { unsafe { llvm::LLVMRustDIBuilderCreateMemberType( DIB(cx), @@ -991,8 +1016,8 @@ fn build_field_di_node<'ll, 'tcx>( name.len(), file_metadata, line_number, - size_and_align.0.bits(), - size_and_align.1.bits() as u32, + layout.size.bits(), + layout.align.abi.bits() as u32, offset.bits(), flags, type_di_node, @@ -1076,7 +1101,7 @@ fn build_struct_type_di_node<'ll, 'tcx>( cx, owner, &field_name[..], - (field_layout.size, field_layout.align.abi), + field_layout, struct_type_and_layout.fields.offset(i), visibility_di_flags(cx, f.did, adt_def.did()), type_di_node(cx, field_layout.ty), @@ -1126,7 +1151,7 @@ fn build_upvar_field_di_nodes<'ll, 'tcx>( cx, closure_or_coroutine_di_node, capture_name.as_str(), - cx.size_and_align_of(up_var_ty), + cx.layout_of(up_var_ty), layout.fields.offset(index), DIFlags::FlagZero, type_di_node(cx, up_var_ty), @@ -1171,7 +1196,7 @@ fn build_tuple_type_di_node<'ll, 'tcx>( cx, tuple_di_node, &tuple_field_name(index), - cx.size_and_align_of(component_type), + cx.layout_of(component_type), tuple_type_and_layout.fields.offset(index), DIFlags::FlagZero, type_di_node(cx, component_type), @@ -1269,7 +1294,7 @@ fn build_union_type_di_node<'ll, 'tcx>( cx, owner, f.name.as_str(), - size_and_align_of(field_layout), + field_layout, Size::ZERO, DIFlags::FlagZero, type_di_node(cx, field_layout.ty), @@ -1287,32 +1312,33 @@ fn build_union_type_di_node<'ll, 'tcx>( fn build_generic_type_param_di_nodes<'ll, 'tcx>( cx: &CodegenCx<'ll, 'tcx>, ty: Ty<'tcx>, -) -> SmallVec<&'ll DIType> { +) -> SmallVec> { if let ty::Adt(def, args) = *ty.kind() { - if args.types().next().is_some() { - let generics = cx.tcx.generics_of(def.did()); - let names = get_parameter_names(cx, generics); - let template_params: SmallVec<_> = iter::zip(args, names) - .filter_map(|(kind, name)| { - kind.as_type().map(|ty| { - let actual_type = cx.tcx.normalize_erasing_regions(cx.typing_env(), ty); - let actual_type_di_node = type_di_node(cx, actual_type); - let name = name.as_str(); - unsafe { - llvm::LLVMRustDIBuilderCreateTemplateTypeParameter( - DIB(cx), - None, - name.as_c_char_ptr(), - name.len(), - actual_type_di_node, - ) - } - }) + let generics = cx.tcx.generics_of(def.did()); + return get_template_parameters(cx, generics, args); + } + + return smallvec![]; +} + +pub(super) fn get_template_parameters<'ll, 'tcx>( + cx: &CodegenCx<'ll, 'tcx>, + generics: &ty::Generics, + args: ty::GenericArgsRef<'tcx>, +) -> SmallVec> { + if args.types().next().is_some() { + let names = get_parameter_names(cx, generics); + let template_params: SmallVec<_> = iter::zip(args, names) + .filter_map(|(kind, name)| { + kind.as_type().map(|ty| { + let actual_type = cx.tcx.normalize_erasing_regions(cx.typing_env(), ty); + let actual_type_di_node = type_di_node(cx, actual_type); + Some(cx.create_template_type_parameter(name.as_str(), actual_type_di_node)) }) - .collect(); + }) + .collect(); - return template_params; - } + return template_params; } return smallvec![]; @@ -1416,7 +1442,9 @@ fn build_vtable_type_di_node<'ll, 'tcx>( let void_pointer_ty = Ty::new_imm_ptr(tcx, tcx.types.unit); let void_pointer_type_di_node = type_di_node(cx, void_pointer_ty); let usize_di_node = type_di_node(cx, tcx.types.usize); - let (pointer_size, pointer_align) = cx.size_and_align_of(void_pointer_ty); + let pointer_layout = cx.layout_of(void_pointer_ty); + let pointer_size = pointer_layout.size; + let pointer_align = pointer_layout.align.abi; // If `usize` is not pointer-sized and -aligned then the size and alignment computations // for the vtable as a whole would be wrong. Let's make sure this holds even on weird // platforms. @@ -1472,7 +1500,7 @@ fn build_vtable_type_di_node<'ll, 'tcx>( cx, vtable_type_di_node, &field_name, - (pointer_size, pointer_align), + pointer_layout, field_offset, DIFlags::FlagZero, field_type_di_node, diff --git a/compiler/rustc_codegen_llvm/src/debuginfo/metadata/enums/cpp_like.rs b/compiler/rustc_codegen_llvm/src/debuginfo/metadata/enums/cpp_like.rs index a72e205c9b249..07075be55fa1f 100644 --- a/compiler/rustc_codegen_llvm/src/debuginfo/metadata/enums/cpp_like.rs +++ b/compiler/rustc_codegen_llvm/src/debuginfo/metadata/enums/cpp_like.rs @@ -17,8 +17,8 @@ use crate::debuginfo::metadata::enums::DiscrResult; use crate::debuginfo::metadata::type_map::{self, Stub, UniqueTypeId}; use crate::debuginfo::metadata::{ DINodeCreationResult, NO_GENERICS, NO_SCOPE_METADATA, SmallVec, UNKNOWN_LINE_NUMBER, - build_field_di_node, file_metadata, file_metadata_from_def_id, size_and_align_of, type_di_node, - unknown_file_metadata, visibility_di_flags, + build_field_di_node, create_member_type, file_metadata, file_metadata_from_def_id, + size_and_align_of, type_di_node, unknown_file_metadata, visibility_di_flags, }; use crate::debuginfo::utils::DIB; use crate::llvm::debuginfo::{DIFile, DIFlags, DIType}; @@ -370,9 +370,9 @@ fn build_single_variant_union_fields<'ll, 'tcx>( cx, enum_type_di_node, &variant_union_field_name(variant_index), - // NOTE: We use the size and align of the entire type, not from variant_layout + // NOTE: We use the layout of the entire type, not from variant_layout // since the later is sometimes smaller (if it has fewer fields). - size_and_align_of(enum_type_and_layout), + enum_type_and_layout, Size::ZERO, visibility_flags, variant_struct_type_wrapper_di_node, @@ -560,7 +560,7 @@ fn build_variant_struct_wrapper_type_di_node<'ll, 'tcx>( cx, wrapper_struct_type_di_node, "value", - size_and_align_of(enum_or_coroutine_type_and_layout), + enum_or_coroutine_type_and_layout, Size::ZERO, DIFlags::FlagZero, variant_struct_type_di_node, @@ -820,7 +820,6 @@ fn build_union_fields_for_direct_tag_enum_or_coroutine<'ll, 'tcx>( .unwrap_or_else(|| (unknown_file_metadata(cx), UNKNOWN_LINE_NUMBER)); let field_name = variant_union_field_name(variant_member_info.variant_index); - let (size, align) = size_and_align_of(enum_type_and_layout); let variant_struct_type_wrapper = build_variant_struct_wrapper_type_di_node( cx, @@ -840,27 +839,23 @@ fn build_union_fields_for_direct_tag_enum_or_coroutine<'ll, 'tcx>( }, ); - // We use LLVMRustDIBuilderCreateMemberType() member type directly because + // We use create_member_type() member type directly because // the build_field_di_node() function does not support specifying a source location, // which is something that we don't do anywhere else. - unsafe { - llvm::LLVMRustDIBuilderCreateMemberType( - DIB(cx), - enum_type_di_node, - field_name.as_c_char_ptr(), - field_name.len(), - file_di_node, - line_number, - // NOTE: We use the size and align of the entire type, not from variant_layout - // since the later is sometimes smaller (if it has fewer fields). - size.bits(), - align.bits() as u32, - // Union fields are always at offset zero - Size::ZERO.bits(), - di_flags, - variant_struct_type_wrapper, - ) - } + create_member_type( + cx, + enum_type_di_node, + &field_name, + file_di_node, + line_number, + // NOTE: We use the layout of the entire type, not from variant_layout + // since the later is sometimes smaller (if it has fewer fields). + enum_type_and_layout, + // Union fields are always at offset zero + Size::ZERO, + di_flags, + variant_struct_type_wrapper, + ) })); assert_eq!( @@ -874,7 +869,7 @@ fn build_union_fields_for_direct_tag_enum_or_coroutine<'ll, 'tcx>( if is_128_bits { let type_di_node = type_di_node(cx, cx.tcx.types.u64); - let size_and_align = cx.size_and_align_of(cx.tcx.types.u64); + let u64_layout = cx.layout_of(cx.tcx.types.u64); let (lo_offset, hi_offset) = match cx.tcx.data_layout.endian { Endian::Little => (0, 8), @@ -889,7 +884,7 @@ fn build_union_fields_for_direct_tag_enum_or_coroutine<'ll, 'tcx>( cx, enum_type_di_node, TAG_FIELD_NAME_128_LO, - size_and_align, + u64_layout, lo_offset, di_flags, type_di_node, @@ -900,7 +895,7 @@ fn build_union_fields_for_direct_tag_enum_or_coroutine<'ll, 'tcx>( cx, enum_type_di_node, TAG_FIELD_NAME_128_HI, - size_and_align, + u64_layout, hi_offset, DIFlags::FlagZero, type_di_node, @@ -911,7 +906,7 @@ fn build_union_fields_for_direct_tag_enum_or_coroutine<'ll, 'tcx>( cx, enum_type_di_node, TAG_FIELD_NAME, - cx.size_and_align_of(enum_type_and_layout.field(cx, tag_field).ty), + enum_type_and_layout.field(cx, tag_field), enum_type_and_layout.fields.offset(tag_field), di_flags, tag_base_type_di_node, diff --git a/compiler/rustc_codegen_llvm/src/debuginfo/metadata/enums/mod.rs b/compiler/rustc_codegen_llvm/src/debuginfo/metadata/enums/mod.rs index 9f6a5cc89e023..6792c307fdc45 100644 --- a/compiler/rustc_codegen_llvm/src/debuginfo/metadata/enums/mod.rs +++ b/compiler/rustc_codegen_llvm/src/debuginfo/metadata/enums/mod.rs @@ -249,7 +249,7 @@ fn build_enum_variant_struct_type_di_node<'ll, 'tcx>( cx, struct_type_di_node, &field_name, - (field_layout.size, field_layout.align.abi), + field_layout, variant_layout.fields.offset(field_index), di_flags, type_di_node(cx, field_layout.ty), @@ -332,7 +332,7 @@ fn build_coroutine_variant_struct_type_di_node<'ll, 'tcx>( cx, variant_struct_type_di_node, &field_name, - cx.size_and_align_of(field_type), + cx.layout_of(field_type), variant_layout.fields.offset(field_index), DIFlags::FlagZero, type_di_node(cx, field_type), @@ -352,7 +352,7 @@ fn build_coroutine_variant_struct_type_di_node<'ll, 'tcx>( cx, variant_struct_type_di_node, upvar_name.as_str(), - cx.size_and_align_of(upvar_ty), + cx.layout_of(upvar_ty), coroutine_type_and_layout.fields.offset(index), DIFlags::FlagZero, type_di_node(cx, upvar_ty), @@ -363,6 +363,7 @@ fn build_coroutine_variant_struct_type_di_node<'ll, 'tcx>( state_specific_fields.into_iter().chain(common_fields).collect() }, + // FIXME: this is a no-op. `build_generic_type_param_di_nodes` only works for Adts. |cx| build_generic_type_param_di_nodes(cx, coroutine_type_and_layout.ty), ) .di_node diff --git a/compiler/rustc_codegen_llvm/src/debuginfo/metadata/enums/native.rs b/compiler/rustc_codegen_llvm/src/debuginfo/metadata/enums/native.rs index 187d97c54c873..bfd131cfd3dbb 100644 --- a/compiler/rustc_codegen_llvm/src/debuginfo/metadata/enums/native.rs +++ b/compiler/rustc_codegen_llvm/src/debuginfo/metadata/enums/native.rs @@ -13,9 +13,9 @@ use smallvec::smallvec; use crate::common::{AsCCharPtr, CodegenCx}; use crate::debuginfo::metadata::type_map::{self, Stub, StubInfo, UniqueTypeId}; use crate::debuginfo::metadata::{ - DINodeCreationResult, NO_GENERICS, SmallVec, UNKNOWN_LINE_NUMBER, file_metadata, - file_metadata_from_def_id, size_and_align_of, type_di_node, unknown_file_metadata, - visibility_di_flags, + DINodeCreationResult, NO_GENERICS, SmallVec, UNKNOWN_LINE_NUMBER, create_member_type, + file_metadata, file_metadata_from_def_id, size_and_align_of, type_di_node, + unknown_file_metadata, visibility_di_flags, }; use crate::debuginfo::utils::{DIB, create_DIArray, get_namespace_for_item}; use crate::llvm::debuginfo::{DIFile, DIFlags, DIType}; @@ -363,23 +363,22 @@ fn build_discr_member_di_node<'ll, 'tcx>( &Variants::Multiple { tag_field, .. } => { let tag_base_type = tag_base_type(cx.tcx, enum_or_coroutine_type_and_layout); - let (size, align) = cx.size_and_align_of(tag_base_type); - - unsafe { - Some(llvm::LLVMRustDIBuilderCreateMemberType( - DIB(cx), - containing_scope, - tag_name.as_c_char_ptr(), - tag_name.len(), - unknown_file_metadata(cx), - UNKNOWN_LINE_NUMBER, - size.bits(), - align.bits() as u32, - enum_or_coroutine_type_and_layout.fields.offset(tag_field).bits(), - DIFlags::FlagArtificial, - type_di_node(cx, tag_base_type), - )) - } + let ty = type_di_node(cx, tag_base_type); + let file = unknown_file_metadata(cx); + + let layout = cx.layout_of(tag_base_type); + + Some(create_member_type( + cx, + containing_scope, + &tag_name, + file, + UNKNOWN_LINE_NUMBER, + layout, + enum_or_coroutine_type_and_layout.fields.offset(tag_field), + DIFlags::FlagArtificial, + ty, + )) } } } diff --git a/compiler/rustc_codegen_llvm/src/debuginfo/metadata/type_map.rs b/compiler/rustc_codegen_llvm/src/debuginfo/metadata/type_map.rs index af1d503ad6a43..ae2ab32ef533c 100644 --- a/compiler/rustc_codegen_llvm/src/debuginfo/metadata/type_map.rs +++ b/compiler/rustc_codegen_llvm/src/debuginfo/metadata/type_map.rs @@ -257,7 +257,7 @@ pub(super) fn build_type_with_children<'ll, 'tcx>( cx: &CodegenCx<'ll, 'tcx>, stub_info: StubInfo<'ll, 'tcx>, members: impl FnOnce(&CodegenCx<'ll, 'tcx>, &'ll DIType) -> SmallVec<&'ll DIType>, - generics: impl FnOnce(&CodegenCx<'ll, 'tcx>) -> SmallVec<&'ll DIType>, + generics: impl FnOnce(&CodegenCx<'ll, 'tcx>) -> SmallVec>, ) -> DINodeCreationResult<'ll> { assert_eq!(debug_context(cx).type_map.di_node_for_unique_id(stub_info.unique_type_id), None); @@ -265,8 +265,7 @@ pub(super) fn build_type_with_children<'ll, 'tcx>( let members: SmallVec<_> = members(cx, stub_info.metadata).into_iter().map(|node| Some(node)).collect(); - let generics: SmallVec> = - generics(cx).into_iter().map(|node| Some(node)).collect(); + let generics = generics(cx); if !(members.is_empty() && generics.is_empty()) { unsafe { diff --git a/compiler/rustc_codegen_llvm/src/debuginfo/mod.rs b/compiler/rustc_codegen_llvm/src/debuginfo/mod.rs index 10819a53b1df8..ae7d080db66f7 100644 --- a/compiler/rustc_codegen_llvm/src/debuginfo/mod.rs +++ b/compiler/rustc_codegen_llvm/src/debuginfo/mod.rs @@ -2,10 +2,11 @@ use std::cell::{OnceCell, RefCell}; use std::ops::Range; +use std::ptr; use std::sync::Arc; -use std::{iter, ptr}; use libc::c_uint; +use metadata::create_subroutine_type; use rustc_abi::Size; use rustc_codegen_ssa::debuginfo::type_names; use rustc_codegen_ssa::mir::debuginfo::VariableKind::*; @@ -34,8 +35,8 @@ use crate::builder::Builder; use crate::common::{AsCCharPtr, CodegenCx}; use crate::llvm; use crate::llvm::debuginfo::{ - DIArray, DIBuilderBox, DIFile, DIFlags, DILexicalBlock, DILocation, DISPFlags, DIScope, DIType, - DIVariable, + DIArray, DIBuilderBox, DIFile, DIFlags, DILexicalBlock, DILocation, DISPFlags, DIScope, + DITemplateTypeParameter, DIType, DIVariable, }; use crate::value::Value; @@ -251,7 +252,7 @@ struct DebugLoc { col: u32, } -impl CodegenCx<'_, '_> { +impl<'ll> CodegenCx<'ll, '_> { /// Looks up debug source information about a `BytePos`. // FIXME(eddyb) rename this to better indicate it's a duplicate of // `lookup_char_pos` rather than `dbg_loc`, perhaps by making @@ -279,6 +280,22 @@ impl CodegenCx<'_, '_> { DebugLoc { file, line, col } } } + + fn create_template_type_parameter( + &self, + name: &str, + actual_type_metadata: &'ll DIType, + ) -> &'ll DITemplateTypeParameter { + unsafe { + llvm::LLVMRustDIBuilderCreateTemplateTypeParameter( + DIB(self), + None, + name.as_c_char_ptr(), + name.len(), + actual_type_metadata, + ) + } + } } impl<'ll, 'tcx> DebugInfoCodegenMethods<'tcx> for CodegenCx<'ll, 'tcx> { @@ -325,10 +342,8 @@ impl<'ll, 'tcx> DebugInfoCodegenMethods<'tcx> for CodegenCx<'ll, 'tcx> { let loc = self.lookup_debug_loc(span.lo()); let file_metadata = file_metadata(self, &loc.file); - let function_type_metadata = unsafe { - let fn_signature = get_function_signature(self, fn_abi); - llvm::LLVMRustDIBuilderCreateSubroutineType(DIB(self), fn_signature) - }; + let function_type_metadata = + create_subroutine_type(self, get_function_signature(self, fn_abi)); let mut name = String::with_capacity(64); type_names::push_item_name(tcx, def_id, false, &mut name); @@ -471,46 +486,10 @@ impl<'ll, 'tcx> DebugInfoCodegenMethods<'tcx> for CodegenCx<'ll, 'tcx> { generics: &ty::Generics, args: GenericArgsRef<'tcx>, ) -> &'ll DIArray { - if args.types().next().is_none() { - return create_DIArray(DIB(cx), &[]); - } - - // Again, only create type information if full debuginfo is enabled - let template_params: Vec<_> = if cx.sess().opts.debuginfo == DebugInfo::Full { - let names = get_parameter_names(cx, generics); - iter::zip(args, names) - .filter_map(|(kind, name)| { - kind.as_type().map(|ty| { - let actual_type = cx.tcx.normalize_erasing_regions(cx.typing_env(), ty); - let actual_type_metadata = type_di_node(cx, actual_type); - let name = name.as_str(); - unsafe { - Some(llvm::LLVMRustDIBuilderCreateTemplateTypeParameter( - DIB(cx), - None, - name.as_c_char_ptr(), - name.len(), - actual_type_metadata, - )) - } - }) - }) - .collect() - } else { - vec![] - }; - + let template_params = metadata::get_template_parameters(cx, generics, args); create_DIArray(DIB(cx), &template_params) } - fn get_parameter_names(cx: &CodegenCx<'_, '_>, generics: &ty::Generics) -> Vec { - let mut names = generics.parent.map_or_else(Vec::new, |def_id| { - get_parameter_names(cx, cx.tcx.generics_of(def_id)) - }); - names.extend(generics.own_params.iter().map(|param| param.name)); - names - } - /// Returns a scope, plus `true` if that's a type scope for "class" methods, /// otherwise `false` for plain namespace scopes. fn get_containing_scope<'ll, 'tcx>(