diff options
Diffstat (limited to 'compiler/rustc_codegen_llvm/src/debuginfo')
3 files changed, 13 insertions, 80 deletions
diff --git a/compiler/rustc_codegen_llvm/src/debuginfo/metadata.rs b/compiler/rustc_codegen_llvm/src/debuginfo/metadata.rs index d87117dff..b6eb5ee18 100644 --- a/compiler/rustc_codegen_llvm/src/debuginfo/metadata.rs +++ b/compiler/rustc_codegen_llvm/src/debuginfo/metadata.rs @@ -27,9 +27,7 @@ use rustc_codegen_ssa::traits::*; use rustc_fs_util::path_to_c_string; use rustc_hir::def::CtorKind; use rustc_hir::def_id::{DefId, LOCAL_CRATE}; -use rustc_index::vec::{Idx, IndexVec}; use rustc_middle::bug; -use rustc_middle::mir::{self, GeneratorLayout}; use rustc_middle::ty::layout::{LayoutOf, TyAndLayout}; use rustc_middle::ty::subst::GenericArgKind; use rustc_middle::ty::{ @@ -113,7 +111,7 @@ macro_rules! return_if_di_node_created_in_meantime { /// Extract size and alignment from a TyAndLayout. #[inline] -fn size_and_align_of<'tcx>(ty_and_layout: TyAndLayout<'tcx>) -> (Size, Align) { +fn size_and_align_of(ty_and_layout: TyAndLayout<'_>) -> (Size, Align) { (ty_and_layout.size, ty_and_layout.align.abi) } @@ -784,10 +782,10 @@ pub fn build_compile_unit_di_node<'ll, 'tcx>( codegen_unit_name: &str, debug_context: &CodegenUnitDebugContext<'ll, 'tcx>, ) -> &'ll DIDescriptor { - let mut name_in_debuginfo = match tcx.sess.local_crate_source_file { - Some(ref path) => path.clone(), - None => PathBuf::from(tcx.crate_name(LOCAL_CRATE).as_str()), - }; + let mut name_in_debuginfo = tcx + .sess + .local_crate_source_file() + .unwrap_or_else(|| PathBuf::from(tcx.crate_name(LOCAL_CRATE).as_str())); // To avoid breaking split DWARF, we need to ensure that each codegen unit // has a unique `DW_AT_name`. This is because there's a remote chance that @@ -1026,33 +1024,6 @@ fn build_struct_type_di_node<'ll, 'tcx>( // Tuples //=----------------------------------------------------------------------------- -/// Returns names of captured upvars for closures and generators. -/// -/// Here are some examples: -/// - `name__field1__field2` when the upvar is captured by value. -/// - `_ref__name__field` when the upvar is captured by reference. -/// -/// For generators this only contains upvars that are shared by all states. -fn closure_saved_names_of_captured_variables(tcx: TyCtxt<'_>, def_id: DefId) -> SmallVec<String> { - let body = tcx.optimized_mir(def_id); - - body.var_debug_info - .iter() - .filter_map(|var| { - let is_ref = match var.value { - mir::VarDebugInfoContents::Place(place) if place.local == mir::Local::new(1) => { - // The projection is either `[.., Field, Deref]` or `[.., Field]`. It - // implies whether the variable is captured by value or by reference. - matches!(place.projection.last().unwrap(), mir::ProjectionElem::Deref) - } - _ => return None, - }; - let prefix = if is_ref { "_ref__" } else { "" }; - Some(prefix.to_owned() + var.name.as_str()) - }) - .collect() -} - /// Builds the DW_TAG_member debuginfo nodes for the upvars of a closure or generator. /// For a generator, this will handle upvars shared by all states. fn build_upvar_field_di_nodes<'ll, 'tcx>( @@ -1083,7 +1054,7 @@ fn build_upvar_field_di_nodes<'ll, 'tcx>( .all(|&t| t == cx.tcx.normalize_erasing_regions(ParamEnv::reveal_all(), t)) ); - let capture_names = closure_saved_names_of_captured_variables(cx.tcx, def_id); + let capture_names = cx.tcx.closure_saved_names_of_captured_variables(def_id); let layout = cx.layout_of(closure_or_generator_ty); up_var_tys @@ -1229,43 +1200,6 @@ fn build_union_type_di_node<'ll, 'tcx>( ) } -// FIXME(eddyb) maybe precompute this? Right now it's computed once -// per generator monomorphization, but it doesn't depend on substs. -fn generator_layout_and_saved_local_names<'tcx>( - tcx: TyCtxt<'tcx>, - def_id: DefId, -) -> (&'tcx GeneratorLayout<'tcx>, IndexVec<mir::GeneratorSavedLocal, Option<Symbol>>) { - let body = tcx.optimized_mir(def_id); - let generator_layout = body.generator_layout().unwrap(); - let mut generator_saved_local_names = IndexVec::from_elem(None, &generator_layout.field_tys); - - let state_arg = mir::Local::new(1); - for var in &body.var_debug_info { - let mir::VarDebugInfoContents::Place(place) = &var.value else { continue }; - if place.local != state_arg { - continue; - } - match place.projection[..] { - [ - // Deref of the `Pin<&mut Self>` state argument. - mir::ProjectionElem::Field(..), - mir::ProjectionElem::Deref, - // Field of a variant of the state. - mir::ProjectionElem::Downcast(_, variant), - mir::ProjectionElem::Field(field, _), - ] => { - let name = &mut generator_saved_local_names - [generator_layout.variant_fields[variant][field]]; - if name.is_none() { - name.replace(var.name); - } - } - _ => {} - } - } - (generator_layout, generator_saved_local_names) -} - /// Computes the type parameters for a type, if any, for the given metadata. fn build_generic_type_param_di_nodes<'ll, 'tcx>( cx: &CodegenCx<'ll, 'tcx>, 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 53e8a291d..69443b9b8 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 @@ -22,9 +22,9 @@ use crate::{ common::CodegenCx, debuginfo::{ metadata::{ - build_field_di_node, closure_saved_names_of_captured_variables, + build_field_di_node, enums::{tag_base_type, DiscrResult}, - file_metadata, generator_layout_and_saved_local_names, size_and_align_of, type_di_node, + file_metadata, size_and_align_of, type_di_node, type_map::{self, Stub, UniqueTypeId}, unknown_file_metadata, DINodeCreationResult, SmallVec, NO_GENERICS, NO_SCOPE_METADATA, UNKNOWN_LINE_NUMBER, @@ -677,9 +677,9 @@ fn build_union_fields_for_direct_tag_generator<'ll, 'tcx>( }; let (generator_layout, state_specific_upvar_names) = - generator_layout_and_saved_local_names(cx.tcx, generator_def_id); + cx.tcx.generator_layout_and_saved_local_names(generator_def_id); - let common_upvar_names = closure_saved_names_of_captured_variables(cx.tcx, generator_def_id); + let common_upvar_names = cx.tcx.closure_saved_names_of_captured_variables(generator_def_id); let variant_range = generator_substs.variant_range(generator_def_id, cx.tcx); let variant_count = (variant_range.start.as_u32()..variant_range.end.as_u32()).len(); 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 becbccc43..93419d27a 100644 --- a/compiler/rustc_codegen_llvm/src/debuginfo/metadata/enums/native.rs +++ b/compiler/rustc_codegen_llvm/src/debuginfo/metadata/enums/native.rs @@ -4,9 +4,8 @@ use crate::{ common::CodegenCx, debuginfo::{ metadata::{ - closure_saved_names_of_captured_variables, enums::tag_base_type, - file_metadata, generator_layout_and_saved_local_names, size_and_align_of, type_di_node, + file_metadata, size_and_align_of, type_di_node, type_map::{self, Stub, StubInfo, UniqueTypeId}, unknown_file_metadata, DINodeCreationResult, SmallVec, NO_GENERICS, UNKNOWN_LINE_NUMBER, @@ -157,7 +156,7 @@ pub(super) fn build_generator_di_node<'ll, 'tcx>( ), |cx, generator_type_di_node| { let (generator_layout, state_specific_upvar_names) = - generator_layout_and_saved_local_names(cx.tcx, generator_def_id); + cx.tcx.generator_layout_and_saved_local_names(generator_def_id); let Variants::Multiple { tag_encoding: TagEncoding::Direct, ref variants, .. } = generator_type_and_layout.variants else { bug!( @@ -167,7 +166,7 @@ pub(super) fn build_generator_di_node<'ll, 'tcx>( }; let common_upvar_names = - closure_saved_names_of_captured_variables(cx.tcx, generator_def_id); + cx.tcx.closure_saved_names_of_captured_variables(generator_def_id); // Build variant struct types let variant_struct_type_di_nodes: SmallVec<_> = variants |