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-rw-r--r--compiler/rustc_codegen_llvm/src/back/write.rs10
-rw-r--r--compiler/rustc_codegen_llvm/src/coverageinfo/mapgen.rs123
-rw-r--r--compiler/rustc_codegen_llvm/src/coverageinfo/mod.rs101
-rw-r--r--compiler/rustc_codegen_llvm/src/debuginfo/metadata.rs130
-rw-r--r--compiler/rustc_codegen_llvm/src/debuginfo/metadata/enums/cpp_like.rs90
-rw-r--r--compiler/rustc_codegen_llvm/src/debuginfo/metadata/enums/mod.rs50
-rw-r--r--compiler/rustc_codegen_llvm/src/debuginfo/metadata/enums/native.rs74
-rw-r--r--compiler/rustc_codegen_llvm/src/debuginfo/metadata/type_map.rs2
-rw-r--r--compiler/rustc_codegen_llvm/src/debuginfo/mod.rs2
-rw-r--r--compiler/rustc_codegen_llvm/src/type_of.rs6
10 files changed, 311 insertions, 277 deletions
diff --git a/compiler/rustc_codegen_llvm/src/back/write.rs b/compiler/rustc_codegen_llvm/src/back/write.rs
index c778a6e017f..9d5204034de 100644
--- a/compiler/rustc_codegen_llvm/src/back/write.rs
+++ b/compiler/rustc_codegen_llvm/src/back/write.rs
@@ -259,9 +259,17 @@ pub fn target_machine_factory(
     };
     let debuginfo_compression = SmallCStr::new(&debuginfo_compression);
 
+    let should_prefer_remapped_for_split_debuginfo_paths =
+        sess.should_prefer_remapped_for_split_debuginfo_paths();
+
     Arc::new(move |config: TargetMachineFactoryConfig| {
         let path_to_cstring_helper = |path: Option<PathBuf>| -> CString {
-            let path = path_mapping.map_prefix(path.unwrap_or_default()).0;
+            let path = path.unwrap_or_default();
+            let path = if should_prefer_remapped_for_split_debuginfo_paths {
+                path_mapping.map_prefix(path).0
+            } else {
+                path.into()
+            };
             CString::new(path.to_str().unwrap()).unwrap()
         };
 
diff --git a/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen.rs b/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen.rs
index ef3647efd88..2f825b801ac 100644
--- a/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen.rs
+++ b/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen.rs
@@ -4,14 +4,16 @@ use crate::coverageinfo::ffi::CounterMappingRegion;
 use crate::coverageinfo::map_data::FunctionCoverage;
 use crate::llvm;
 
-use rustc_codegen_ssa::traits::ConstMethods;
+use rustc_codegen_ssa::traits::{BaseTypeMethods, ConstMethods};
 use rustc_data_structures::fx::FxIndexSet;
 use rustc_hir::def::DefKind;
 use rustc_hir::def_id::DefId;
 use rustc_index::IndexVec;
 use rustc_middle::bug;
+use rustc_middle::mir;
 use rustc_middle::mir::coverage::CodeRegion;
 use rustc_middle::ty::{self, TyCtxt};
+use rustc_span::def_id::DefIdSet;
 use rustc_span::Symbol;
 
 /// Generates and exports the Coverage Map.
@@ -94,8 +96,14 @@ pub fn finalize(cx: &CodegenCx<'_, '_>) {
     // Generate the LLVM IR representation of the coverage map and store it in a well-known global
     let cov_data_val = generate_coverage_map(cx, version, filenames_size, filenames_val);
 
+    let mut unused_function_names = Vec::new();
+
     let covfun_section_name = coverageinfo::covfun_section_name(cx);
     for (mangled_function_name, source_hash, is_used, coverage_mapping_buffer) in function_data {
+        if !is_used {
+            unused_function_names.push(mangled_function_name);
+        }
+
         save_function_record(
             cx,
             &covfun_section_name,
@@ -107,6 +115,25 @@ pub fn finalize(cx: &CodegenCx<'_, '_>) {
         );
     }
 
+    // For unused functions, we need to take their mangled names and store them
+    // in a specially-named global array. LLVM's `InstrProfiling` pass will
+    // detect this global and include those names in its `__llvm_prf_names`
+    // section. (See `llvm/lib/Transforms/Instrumentation/InstrProfiling.cpp`.)
+    if !unused_function_names.is_empty() {
+        assert!(cx.codegen_unit.is_code_coverage_dead_code_cgu());
+
+        let name_globals = unused_function_names
+            .into_iter()
+            .map(|mangled_function_name| cx.const_str(mangled_function_name).0)
+            .collect::<Vec<_>>();
+        let initializer = cx.const_array(cx.type_ptr(), &name_globals);
+
+        let array = llvm::add_global(cx.llmod, cx.val_ty(initializer), "__llvm_coverage_names");
+        llvm::set_global_constant(array, true);
+        llvm::set_linkage(array, llvm::Linkage::InternalLinkage);
+        llvm::set_initializer(array, initializer);
+    }
+
     // Save the coverage data value to LLVM IR
     coverageinfo::save_cov_data_to_mod(cx, cov_data_val);
 }
@@ -123,9 +150,9 @@ impl GlobalFileTable {
         // Since rustc generates coverage maps with relative paths, the
         // compilation directory can be combined with the relative paths
         // to get absolute paths, if needed.
-        let working_dir = Symbol::intern(
-            &tcx.sess.opts.working_dir.remapped_path_if_available().to_string_lossy(),
-        );
+        use rustc_session::RemapFileNameExt;
+        let working_dir =
+            Symbol::intern(&tcx.sess.opts.working_dir.for_codegen(&tcx.sess).to_string_lossy());
         global_file_table.insert(working_dir);
         Self { global_file_table }
     }
@@ -287,13 +314,12 @@ fn save_function_record(
 /// `-Clink-dead-code` will not generate code for unused generic functions.)
 ///
 /// We can find the unused functions (including generic functions) by the set difference of all MIR
-/// `DefId`s (`tcx` query `mir_keys`) minus the codegenned `DefId`s (`tcx` query
-/// `codegened_and_inlined_items`).
+/// `DefId`s (`tcx` query `mir_keys`) minus the codegenned `DefId`s (`codegenned_and_inlined_items`).
 ///
-/// These unused functions are then codegen'd in one of the CGUs which is marked as the
-/// "code coverage dead code cgu" during the partitioning process. This prevents us from generating
-/// code regions for the same function more than once which can lead to linker errors regarding
-/// duplicate symbols.
+/// These unused functions don't need to be codegenned, but we do need to add them to the function
+/// coverage map (in a single designated CGU) so that we still emit coverage mappings for them.
+/// We also end up adding their symbol names to a special global array that LLVM will include in
+/// its embedded coverage data.
 fn add_unused_functions(cx: &CodegenCx<'_, '_>) {
     assert!(cx.codegen_unit.is_code_coverage_dead_code_cgu());
 
@@ -313,7 +339,7 @@ fn add_unused_functions(cx: &CodegenCx<'_, '_>) {
             // generic functions from consideration as well.
             if !matches!(
                 kind,
-                DefKind::Fn | DefKind::AssocFn | DefKind::Closure | DefKind::Generator
+                DefKind::Fn | DefKind::AssocFn | DefKind::Closure | DefKind::Coroutine
             ) {
                 return None;
             }
@@ -324,19 +350,80 @@ fn add_unused_functions(cx: &CodegenCx<'_, '_>) {
         })
         .collect();
 
-    let codegenned_def_ids = tcx.codegened_and_inlined_items(());
+    let codegenned_def_ids = codegenned_and_inlined_items(tcx);
 
-    for non_codegenned_def_id in
-        eligible_def_ids.into_iter().filter(|id| !codegenned_def_ids.contains(id))
-    {
+    // For each `DefId` that should have coverage instrumentation but wasn't
+    // codegenned, add it to the function coverage map as an unused function.
+    for def_id in eligible_def_ids.into_iter().filter(|id| !codegenned_def_ids.contains(id)) {
         // Skip any function that didn't have coverage data added to it by the
         // coverage instrumentor.
-        let body = tcx.instance_mir(ty::InstanceDef::Item(non_codegenned_def_id));
+        let body = tcx.instance_mir(ty::InstanceDef::Item(def_id));
         let Some(function_coverage_info) = body.function_coverage_info.as_deref() else {
             continue;
         };
 
-        debug!("generating unused fn: {:?}", non_codegenned_def_id);
-        cx.define_unused_fn(non_codegenned_def_id, function_coverage_info);
+        debug!("generating unused fn: {def_id:?}");
+        let instance = declare_unused_fn(tcx, def_id);
+        add_unused_function_coverage(cx, instance, function_coverage_info);
+    }
+}
+
+/// All items participating in code generation together with (instrumented)
+/// items inlined into them.
+fn codegenned_and_inlined_items(tcx: TyCtxt<'_>) -> DefIdSet {
+    let (items, cgus) = tcx.collect_and_partition_mono_items(());
+    let mut visited = DefIdSet::default();
+    let mut result = items.clone();
+
+    for cgu in cgus {
+        for item in cgu.items().keys() {
+            if let mir::mono::MonoItem::Fn(ref instance) = item {
+                let did = instance.def_id();
+                if !visited.insert(did) {
+                    continue;
+                }
+                let body = tcx.instance_mir(instance.def);
+                for block in body.basic_blocks.iter() {
+                    for statement in &block.statements {
+                        let mir::StatementKind::Coverage(_) = statement.kind else { continue };
+                        let scope = statement.source_info.scope;
+                        if let Some(inlined) = scope.inlined_instance(&body.source_scopes) {
+                            result.insert(inlined.def_id());
+                        }
+                    }
+                }
+            }
+        }
+    }
+
+    result
+}
+
+fn declare_unused_fn<'tcx>(tcx: TyCtxt<'tcx>, def_id: DefId) -> ty::Instance<'tcx> {
+    ty::Instance::new(
+        def_id,
+        ty::GenericArgs::for_item(tcx, def_id, |param, _| {
+            if let ty::GenericParamDefKind::Lifetime = param.kind {
+                tcx.lifetimes.re_erased.into()
+            } else {
+                tcx.mk_param_from_def(param)
+            }
+        }),
+    )
+}
+
+fn add_unused_function_coverage<'tcx>(
+    cx: &CodegenCx<'_, 'tcx>,
+    instance: ty::Instance<'tcx>,
+    function_coverage_info: &'tcx mir::coverage::FunctionCoverageInfo,
+) {
+    // An unused function's mappings will automatically be rewritten to map to
+    // zero, because none of its counters/expressions are marked as seen.
+    let function_coverage = FunctionCoverage::unused(instance, function_coverage_info);
+
+    if let Some(coverage_context) = cx.coverage_context() {
+        coverage_context.function_coverage_map.borrow_mut().insert(instance, function_coverage);
+    } else {
+        bug!("Could not get the `coverage_context`");
     }
 }
diff --git a/compiler/rustc_codegen_llvm/src/coverageinfo/mod.rs b/compiler/rustc_codegen_llvm/src/coverageinfo/mod.rs
index 204a73b788a..cf7c7e6be60 100644
--- a/compiler/rustc_codegen_llvm/src/coverageinfo/mod.rs
+++ b/compiler/rustc_codegen_llvm/src/coverageinfo/mod.rs
@@ -1,6 +1,5 @@
 use crate::llvm;
 
-use crate::abi::Abi;
 use crate::builder::Builder;
 use crate::common::CodegenCx;
 use crate::coverageinfo::ffi::{CounterExpression, CounterMappingRegion};
@@ -12,17 +11,12 @@ use rustc_codegen_ssa::traits::{
     StaticMethods,
 };
 use rustc_data_structures::fx::FxHashMap;
-use rustc_hir as hir;
-use rustc_hir::def_id::DefId;
 use rustc_llvm::RustString;
 use rustc_middle::bug;
-use rustc_middle::mir::coverage::{CounterId, CoverageKind, FunctionCoverageInfo};
+use rustc_middle::mir::coverage::CoverageKind;
 use rustc_middle::mir::Coverage;
-use rustc_middle::ty;
-use rustc_middle::ty::layout::{FnAbiOf, HasTyCtxt};
-use rustc_middle::ty::GenericArgs;
+use rustc_middle::ty::layout::HasTyCtxt;
 use rustc_middle::ty::Instance;
-use rustc_middle::ty::Ty;
 
 use std::cell::RefCell;
 
@@ -30,8 +24,6 @@ pub(crate) mod ffi;
 pub(crate) mod map_data;
 pub mod mapgen;
 
-const UNUSED_FUNCTION_COUNTER_ID: CounterId = CounterId::START;
-
 const VAR_ALIGN_BYTES: usize = 8;
 
 /// A context object for maintaining all state needed by the coverageinfo module.
@@ -76,25 +68,6 @@ impl<'ll, 'tcx> CodegenCx<'ll, 'tcx> {
             bug!("Could not get the `coverage_context`");
         }
     }
-
-    /// Functions with MIR-based coverage are normally codegenned _only_ if
-    /// called. LLVM coverage tools typically expect every function to be
-    /// defined (even if unused), with at least one call to LLVM intrinsic
-    /// `instrprof.increment`.
-    ///
-    /// Codegen a small function that will never be called, with one counter
-    /// that will never be incremented.
-    ///
-    /// For used/called functions, the coverageinfo was already added to the
-    /// `function_coverage_map` (keyed by function `Instance`) during codegen.
-    /// But in this case, since the unused function was _not_ previously
-    /// codegenned, collect the function coverage info from MIR and add an
-    /// "unused" entry to the function coverage map.
-    fn define_unused_fn(&self, def_id: DefId, function_coverage_info: &'tcx FunctionCoverageInfo) {
-        let instance = declare_unused_fn(self, def_id);
-        codegen_unused_fn_and_counter(self, instance);
-        add_unused_function_coverage(self, instance, function_coverage_info);
-    }
 }
 
 impl<'tcx> CoverageInfoBuilderMethods<'tcx> for Builder<'_, '_, 'tcx> {
@@ -159,76 +132,6 @@ impl<'tcx> CoverageInfoBuilderMethods<'tcx> for Builder<'_, '_, 'tcx> {
     }
 }
 
-fn declare_unused_fn<'tcx>(cx: &CodegenCx<'_, 'tcx>, def_id: DefId) -> Instance<'tcx> {
-    let tcx = cx.tcx;
-
-    let instance = Instance::new(
-        def_id,
-        GenericArgs::for_item(tcx, def_id, |param, _| {
-            if let ty::GenericParamDefKind::Lifetime = param.kind {
-                tcx.lifetimes.re_erased.into()
-            } else {
-                tcx.mk_param_from_def(param)
-            }
-        }),
-    );
-
-    let llfn = cx.declare_fn(
-        tcx.symbol_name(instance).name,
-        cx.fn_abi_of_fn_ptr(
-            ty::Binder::dummy(tcx.mk_fn_sig(
-                [Ty::new_unit(tcx)],
-                Ty::new_unit(tcx),
-                false,
-                hir::Unsafety::Unsafe,
-                Abi::Rust,
-            )),
-            ty::List::empty(),
-        ),
-        None,
-    );
-
-    llvm::set_linkage(llfn, llvm::Linkage::PrivateLinkage);
-    llvm::set_visibility(llfn, llvm::Visibility::Default);
-
-    assert!(cx.instances.borrow_mut().insert(instance, llfn).is_none());
-
-    instance
-}
-
-fn codegen_unused_fn_and_counter<'tcx>(cx: &CodegenCx<'_, 'tcx>, instance: Instance<'tcx>) {
-    let llfn = cx.get_fn(instance);
-    let llbb = Builder::append_block(cx, llfn, "unused_function");
-    let mut bx = Builder::build(cx, llbb);
-    let fn_name = bx.get_pgo_func_name_var(instance);
-    let hash = bx.const_u64(0);
-    let num_counters = bx.const_u32(1);
-    let index = bx.const_u32(u32::from(UNUSED_FUNCTION_COUNTER_ID));
-    debug!(
-        "codegen intrinsic instrprof.increment(fn_name={:?}, hash={:?}, num_counters={:?},
-            index={:?}) for unused function: {:?}",
-        fn_name, hash, num_counters, index, instance
-    );
-    bx.instrprof_increment(fn_name, hash, num_counters, index);
-    bx.ret_void();
-}
-
-fn add_unused_function_coverage<'tcx>(
-    cx: &CodegenCx<'_, 'tcx>,
-    instance: Instance<'tcx>,
-    function_coverage_info: &'tcx FunctionCoverageInfo,
-) {
-    // An unused function's mappings will automatically be rewritten to map to
-    // zero, because none of its counters/expressions are marked as seen.
-    let function_coverage = FunctionCoverage::unused(instance, function_coverage_info);
-
-    if let Some(coverage_context) = cx.coverage_context() {
-        coverage_context.function_coverage_map.borrow_mut().insert(instance, function_coverage);
-    } else {
-        bug!("Could not get the `coverage_context`");
-    }
-}
-
 /// Calls llvm::createPGOFuncNameVar() with the given function instance's
 /// mangled function name. The LLVM API returns an llvm::GlobalVariable
 /// containing the function name, with the specific variable name and linkage
diff --git a/compiler/rustc_codegen_llvm/src/debuginfo/metadata.rs b/compiler/rustc_codegen_llvm/src/debuginfo/metadata.rs
index 11874898a5a..865bf01c8c1 100644
--- a/compiler/rustc_codegen_llvm/src/debuginfo/metadata.rs
+++ b/compiler/rustc_codegen_llvm/src/debuginfo/metadata.rs
@@ -460,7 +460,7 @@ pub fn type_di_node<'ll, 'tcx>(cx: &CodegenCx<'ll, 'tcx>, t: Ty<'tcx>) -> &'ll D
         }
         ty::FnDef(..) | ty::FnPtr(_) => build_subroutine_type_di_node(cx, unique_type_id),
         ty::Closure(..) => build_closure_env_di_node(cx, unique_type_id),
-        ty::Generator(..) => enums::build_generator_di_node(cx, unique_type_id),
+        ty::Coroutine(..) => enums::build_coroutine_di_node(cx, unique_type_id),
         ty::Adt(def, ..) => match def.adt_kind() {
             AdtKind::Struct => build_struct_type_di_node(cx, unique_type_id),
             AdtKind::Union => build_union_type_di_node(cx, unique_type_id),
@@ -547,48 +547,77 @@ pub fn file_metadata<'ll>(cx: &CodegenCx<'ll, '_>, source_file: &SourceFile) ->
     ) -> &'ll DIFile {
         debug!(?source_file.name);
 
+        use rustc_session::RemapFileNameExt;
         let (directory, file_name) = match &source_file.name {
             FileName::Real(filename) => {
                 let working_directory = &cx.sess().opts.working_dir;
                 debug!(?working_directory);
 
-                let filename = cx
-                    .sess()
-                    .source_map()
-                    .path_mapping()
-                    .to_embeddable_absolute_path(filename.clone(), working_directory);
-
-                // Construct the absolute path of the file
-                let abs_path = filename.remapped_path_if_available();
-                debug!(?abs_path);
-
-                if let Ok(rel_path) =
-                    abs_path.strip_prefix(working_directory.remapped_path_if_available())
-                {
-                    // If the compiler's working directory (which also is the DW_AT_comp_dir of
-                    // the compilation unit) is a prefix of the path we are about to emit, then
-                    // only emit the part relative to the working directory.
-                    // Because of path remapping we sometimes see strange things here: `abs_path`
-                    // might actually look like a relative path
-                    // (e.g. `<crate-name-and-version>/src/lib.rs`), so if we emit it without
-                    // taking the working directory into account, downstream tooling will
-                    // interpret it as `<working-directory>/<crate-name-and-version>/src/lib.rs`,
-                    // which makes no sense. Usually in such cases the working directory will also
-                    // be remapped to `<crate-name-and-version>` or some other prefix of the path
-                    // we are remapping, so we end up with
-                    // `<crate-name-and-version>/<crate-name-and-version>/src/lib.rs`.
-                    // By moving the working directory portion into the `directory` part of the
-                    // DIFile, we allow LLVM to emit just the relative path for DWARF, while
-                    // still emitting the correct absolute path for CodeView.
-                    (
-                        working_directory.to_string_lossy(FileNameDisplayPreference::Remapped),
-                        rel_path.to_string_lossy().into_owned(),
-                    )
+                if cx.sess().should_prefer_remapped_for_codegen() {
+                    let filename = cx
+                        .sess()
+                        .source_map()
+                        .path_mapping()
+                        .to_embeddable_absolute_path(filename.clone(), working_directory);
+
+                    // Construct the absolute path of the file
+                    let abs_path = filename.remapped_path_if_available();
+                    debug!(?abs_path);
+
+                    if let Ok(rel_path) =
+                        abs_path.strip_prefix(working_directory.remapped_path_if_available())
+                    {
+                        // If the compiler's working directory (which also is the DW_AT_comp_dir of
+                        // the compilation unit) is a prefix of the path we are about to emit, then
+                        // only emit the part relative to the working directory.
+                        // Because of path remapping we sometimes see strange things here: `abs_path`
+                        // might actually look like a relative path
+                        // (e.g. `<crate-name-and-version>/src/lib.rs`), so if we emit it without
+                        // taking the working directory into account, downstream tooling will
+                        // interpret it as `<working-directory>/<crate-name-and-version>/src/lib.rs`,
+                        // which makes no sense. Usually in such cases the working directory will also
+                        // be remapped to `<crate-name-and-version>` or some other prefix of the path
+                        // we are remapping, so we end up with
+                        // `<crate-name-and-version>/<crate-name-and-version>/src/lib.rs`.
+                        // By moving the working directory portion into the `directory` part of the
+                        // DIFile, we allow LLVM to emit just the relative path for DWARF, while
+                        // still emitting the correct absolute path for CodeView.
+                        (
+                            working_directory.to_string_lossy(FileNameDisplayPreference::Remapped),
+                            rel_path.to_string_lossy().into_owned(),
+                        )
+                    } else {
+                        ("".into(), abs_path.to_string_lossy().into_owned())
+                    }
                 } else {
-                    ("".into(), abs_path.to_string_lossy().into_owned())
+                    let working_directory = working_directory.local_path_if_available();
+                    let filename = filename.local_path_if_available();
+
+                    debug!(?working_directory, ?filename);
+
+                    let abs_path: Cow<'_, Path> = if filename.is_absolute() {
+                        filename.into()
+                    } else {
+                        let mut p = PathBuf::new();
+                        p.push(working_directory);
+                        p.push(filename);
+                        p.into()
+                    };
+
+                    if let Ok(rel_path) = abs_path.strip_prefix(working_directory) {
+                        (
+                            working_directory.to_string_lossy().into(),
+                            rel_path.to_string_lossy().into_owned(),
+                        )
+                    } else {
+                        ("".into(), abs_path.to_string_lossy().into_owned())
+                    }
                 }
             }
-            other => ("".into(), other.prefer_remapped().to_string_lossy().into_owned()),
+            other => {
+                debug!(?other);
+                ("".into(), other.for_codegen(cx.sess()).to_string_lossy().into_owned())
+            }
         };
 
         let hash_kind = match source_file.src_hash.kind {
@@ -822,8 +851,9 @@ pub fn build_compile_unit_di_node<'ll, 'tcx>(
     // FIXME(#41252) Remove "clang LLVM" if we can get GDB and LLVM to play nice.
     let producer = format!("clang LLVM ({rustc_producer})");
 
+    use rustc_session::RemapFileNameExt;
     let name_in_debuginfo = name_in_debuginfo.to_string_lossy();
-    let work_dir = tcx.sess.opts.working_dir.to_string_lossy(FileNameDisplayPreference::Remapped);
+    let work_dir = tcx.sess.opts.working_dir.for_codegen(&tcx.sess).to_string_lossy();
     let flags = "\0";
     let output_filenames = tcx.output_filenames(());
     let split_name = if tcx.sess.target_can_use_split_dwarf() {
@@ -834,7 +864,13 @@ pub fn build_compile_unit_di_node<'ll, 'tcx>(
                 Some(codegen_unit_name),
             )
             // We get a path relative to the working directory from split_dwarf_path
-            .map(|f| tcx.sess.source_map().path_mapping().map_prefix(f).0)
+            .map(|f| {
+                if tcx.sess.should_prefer_remapped_for_split_debuginfo_paths() {
+                    tcx.sess.source_map().path_mapping().map_prefix(f).0
+                } else {
+                    f.into()
+                }
+            })
     } else {
         None
     }
@@ -990,20 +1026,20 @@ fn build_struct_type_di_node<'ll, 'tcx>(
 // Tuples
 //=-----------------------------------------------------------------------------
 
-/// 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.
+/// Builds the DW_TAG_member debuginfo nodes for the upvars of a closure or coroutine.
+/// For a coroutine, this will handle upvars shared by all states.
 fn build_upvar_field_di_nodes<'ll, 'tcx>(
     cx: &CodegenCx<'ll, 'tcx>,
-    closure_or_generator_ty: Ty<'tcx>,
-    closure_or_generator_di_node: &'ll DIType,
+    closure_or_coroutine_ty: Ty<'tcx>,
+    closure_or_coroutine_di_node: &'ll DIType,
 ) -> SmallVec<&'ll DIType> {
-    let (&def_id, up_var_tys) = match closure_or_generator_ty.kind() {
-        ty::Generator(def_id, args, _) => (def_id, args.as_generator().prefix_tys()),
+    let (&def_id, up_var_tys) = match closure_or_coroutine_ty.kind() {
+        ty::Coroutine(def_id, args, _) => (def_id, args.as_coroutine().prefix_tys()),
         ty::Closure(def_id, args) => (def_id, args.as_closure().upvar_tys()),
         _ => {
             bug!(
-                "build_upvar_field_di_nodes() called with non-closure-or-generator-type: {:?}",
-                closure_or_generator_ty
+                "build_upvar_field_di_nodes() called with non-closure-or-coroutine-type: {:?}",
+                closure_or_coroutine_ty
             )
         }
     };
@@ -1013,7 +1049,7 @@ fn build_upvar_field_di_nodes<'ll, 'tcx>(
     );
 
     let capture_names = cx.tcx.closure_saved_names_of_captured_variables(def_id);
-    let layout = cx.layout_of(closure_or_generator_ty);
+    let layout = cx.layout_of(closure_or_coroutine_ty);
 
     up_var_tys
         .into_iter()
@@ -1022,7 +1058,7 @@ fn build_upvar_field_di_nodes<'ll, 'tcx>(
         .map(|(index, (up_var_ty, capture_name))| {
             build_field_di_node(
                 cx,
-                closure_or_generator_di_node,
+                closure_or_coroutine_di_node,
                 capture_name.as_str(),
                 cx.size_and_align_of(up_var_ty),
                 layout.fields.offset(index),
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 88040557a9b..ca7bfbeac25 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
@@ -12,7 +12,7 @@ use rustc_middle::{
     ty::{
         self,
         layout::{LayoutOf, TyAndLayout},
-        AdtDef, GeneratorArgs, Ty,
+        AdtDef, CoroutineArgs, Ty,
     },
 };
 use rustc_target::abi::{Align, Endian, Size, TagEncoding, VariantIdx, Variants};
@@ -268,18 +268,18 @@ pub(super) fn build_enum_type_di_node<'ll, 'tcx>(
     )
 }
 
-/// A generator debuginfo node looks the same as a that of an enum type.
+/// A coroutine debuginfo node looks the same as a that of an enum type.
 ///
 /// See [build_enum_type_di_node] for more information.
-pub(super) fn build_generator_di_node<'ll, 'tcx>(
+pub(super) fn build_coroutine_di_node<'ll, 'tcx>(
     cx: &CodegenCx<'ll, 'tcx>,
     unique_type_id: UniqueTypeId<'tcx>,
 ) -> DINodeCreationResult<'ll> {
-    let generator_type = unique_type_id.expect_ty();
-    let generator_type_and_layout = cx.layout_of(generator_type);
-    let generator_type_name = compute_debuginfo_type_name(cx.tcx, generator_type, false);
+    let coroutine_type = unique_type_id.expect_ty();
+    let coroutine_type_and_layout = cx.layout_of(coroutine_type);
+    let coroutine_type_name = compute_debuginfo_type_name(cx.tcx, coroutine_type, false);
 
-    debug_assert!(!wants_c_like_enum_debuginfo(generator_type_and_layout));
+    debug_assert!(!wants_c_like_enum_debuginfo(coroutine_type_and_layout));
 
     type_map::build_type_with_children(
         cx,
@@ -287,24 +287,24 @@ pub(super) fn build_generator_di_node<'ll, 'tcx>(
             cx,
             type_map::Stub::Union,
             unique_type_id,
-            &generator_type_name,
-            size_and_align_of(generator_type_and_layout),
+            &coroutine_type_name,
+            size_and_align_of(coroutine_type_and_layout),
             NO_SCOPE_METADATA,
             DIFlags::FlagZero,
         ),
-        |cx, generator_type_di_node| match generator_type_and_layout.variants {
+        |cx, coroutine_type_di_node| match coroutine_type_and_layout.variants {
             Variants::Multiple { tag_encoding: TagEncoding::Direct, .. } => {
-                build_union_fields_for_direct_tag_generator(
+                build_union_fields_for_direct_tag_coroutine(
                     cx,
-                    generator_type_and_layout,
-                    generator_type_di_node,
+                    coroutine_type_and_layout,
+                    coroutine_type_di_node,
                 )
             }
             Variants::Single { .. }
             | Variants::Multiple { tag_encoding: TagEncoding::Niche { .. }, .. } => {
                 bug!(
-                    "Encountered generator with non-direct-tag layout: {:?}",
-                    generator_type_and_layout
+                    "Encountered coroutine with non-direct-tag layout: {:?}",
+                    coroutine_type_and_layout
                 )
             }
         },
@@ -428,7 +428,7 @@ fn build_union_fields_for_enum<'ll, 'tcx>(
         })
         .collect();
 
-    build_union_fields_for_direct_tag_enum_or_generator(
+    build_union_fields_for_direct_tag_enum_or_coroutine(
         cx,
         enum_type_and_layout,
         enum_type_di_node,
@@ -469,8 +469,8 @@ fn build_variant_names_type_di_node<'ll, 'tcx>(
 
 fn build_variant_struct_wrapper_type_di_node<'ll, 'tcx>(
     cx: &CodegenCx<'ll, 'tcx>,
-    enum_or_generator_type_and_layout: TyAndLayout<'tcx>,
-    enum_or_generator_type_di_node: &'ll DIType,
+    enum_or_coroutine_type_and_layout: TyAndLayout<'tcx>,
+    enum_or_coroutine_type_di_node: &'ll DIType,
     variant_index: VariantIdx,
     untagged_variant_index: Option<VariantIdx>,
     variant_struct_type_di_node: &'ll DIType,
@@ -486,13 +486,13 @@ fn build_variant_struct_wrapper_type_di_node<'ll, 'tcx>(
             Stub::Struct,
             UniqueTypeId::for_enum_variant_struct_type_wrapper(
                 cx.tcx,
-                enum_or_generator_type_and_layout.ty,
+                enum_or_coroutine_type_and_layout.ty,
                 variant_index,
             ),
             &variant_struct_wrapper_type_name(variant_index),
             // NOTE: We use size and align of enum_type, not from variant_layout:
-            size_and_align_of(enum_or_generator_type_and_layout),
-            Some(enum_or_generator_type_di_node),
+            size_and_align_of(enum_or_coroutine_type_and_layout),
+            Some(enum_or_coroutine_type_di_node),
             DIFlags::FlagZero,
         ),
         |cx, wrapper_struct_type_di_node| {
@@ -535,7 +535,7 @@ fn build_variant_struct_wrapper_type_di_node<'ll, 'tcx>(
                 cx,
                 wrapper_struct_type_di_node,
                 "value",
-                size_and_align_of(enum_or_generator_type_and_layout),
+                size_and_align_of(enum_or_coroutine_type_and_layout),
                 Size::ZERO,
                 DIFlags::FlagZero,
                 variant_struct_type_di_node,
@@ -662,40 +662,40 @@ fn split_128(value: u128) -> Split128 {
     Split128 { hi: (value >> 64) as u64, lo: value as u64 }
 }
 
-fn build_union_fields_for_direct_tag_generator<'ll, 'tcx>(
+fn build_union_fields_for_direct_tag_coroutine<'ll, 'tcx>(
     cx: &CodegenCx<'ll, 'tcx>,
-    generator_type_and_layout: TyAndLayout<'tcx>,
-    generator_type_di_node: &'ll DIType,
+    coroutine_type_and_layout: TyAndLayout<'tcx>,
+    coroutine_type_di_node: &'ll DIType,
 ) -> SmallVec<&'ll DIType> {
     let Variants::Multiple { tag_encoding: TagEncoding::Direct, tag_field, .. } =
-        generator_type_and_layout.variants
+        coroutine_type_and_layout.variants
     else {
         bug!("This function only supports layouts with directly encoded tags.")
     };
 
-    let (generator_def_id, generator_args) = match generator_type_and_layout.ty.kind() {
-        &ty::Generator(def_id, args, _) => (def_id, args.as_generator()),
+    let (coroutine_def_id, coroutine_args) = match coroutine_type_and_layout.ty.kind() {
+        &ty::Coroutine(def_id, args, _) => (def_id, args.as_coroutine()),
         _ => unreachable!(),
     };
 
-    let generator_layout = cx.tcx.optimized_mir(generator_def_id).generator_layout().unwrap();
+    let coroutine_layout = cx.tcx.optimized_mir(coroutine_def_id).coroutine_layout().unwrap();
 
-    let common_upvar_names = cx.tcx.closure_saved_names_of_captured_variables(generator_def_id);
-    let variant_range = generator_args.variant_range(generator_def_id, cx.tcx);
+    let common_upvar_names = cx.tcx.closure_saved_names_of_captured_variables(coroutine_def_id);
+    let variant_range = coroutine_args.variant_range(coroutine_def_id, cx.tcx);
     let variant_count = (variant_range.start.as_u32()..variant_range.end.as_u32()).len();
 
-    let tag_base_type = tag_base_type(cx, generator_type_and_layout);
+    let tag_base_type = tag_base_type(cx, coroutine_type_and_layout);
 
     let variant_names_type_di_node = build_variant_names_type_di_node(
         cx,
-        generator_type_di_node,
+        coroutine_type_di_node,
         variant_range
             .clone()
-            .map(|variant_index| (variant_index, GeneratorArgs::variant_name(variant_index))),
+            .map(|variant_index| (variant_index, CoroutineArgs::variant_name(variant_index))),
     );
 
     let discriminants: IndexVec<VariantIdx, DiscrResult> = {
-        let discriminants_iter = generator_args.discriminants(generator_def_id, cx.tcx);
+        let discriminants_iter = coroutine_args.discriminants(coroutine_def_id, cx.tcx);
         let mut discriminants: IndexVec<VariantIdx, DiscrResult> =
             IndexVec::with_capacity(variant_count);
         for (variant_index, discr) in discriminants_iter {
@@ -709,16 +709,16 @@ fn build_union_fields_for_direct_tag_generator<'ll, 'tcx>(
     // Build the type node for each field.
     let variant_field_infos: SmallVec<VariantFieldInfo<'ll>> = variant_range
         .map(|variant_index| {
-            let variant_struct_type_di_node = super::build_generator_variant_struct_type_di_node(
+            let variant_struct_type_di_node = super::build_coroutine_variant_struct_type_di_node(
                 cx,
                 variant_index,
-                generator_type_and_layout,
-                generator_type_di_node,
-                generator_layout,
+                coroutine_type_and_layout,
+                coroutine_type_di_node,
+                coroutine_layout,
                 &common_upvar_names,
             );
 
-            let span = generator_layout.variant_source_info[variant_index].span;
+            let span = coroutine_layout.variant_source_info[variant_index].span;
             let source_info = if !span.is_dummy() {
                 let loc = cx.lookup_debug_loc(span.lo());
                 Some((file_metadata(cx, &loc.file), loc.line as c_uint))
@@ -735,10 +735,10 @@ fn build_union_fields_for_direct_tag_generator<'ll, 'tcx>(
         })
         .collect();
 
-    build_union_fields_for_direct_tag_enum_or_generator(
+    build_union_fields_for_direct_tag_enum_or_coroutine(
         cx,
-        generator_type_and_layout,
-        generator_type_di_node,
+        coroutine_type_and_layout,
+        coroutine_type_di_node,
         &variant_field_infos[..],
         variant_names_type_di_node,
         tag_base_type,
@@ -747,9 +747,9 @@ fn build_union_fields_for_direct_tag_generator<'ll, 'tcx>(
     )
 }
 
-/// This is a helper function shared between enums and generators that makes sure fields have the
+/// This is a helper function shared between enums and coroutines that makes sure fields have the
 /// expect names.
-fn build_union_fields_for_direct_tag_enum_or_generator<'ll, 'tcx>(
+fn build_union_fields_for_direct_tag_enum_or_coroutine<'ll, 'tcx>(
     cx: &CodegenCx<'ll, 'tcx>,
     enum_type_and_layout: TyAndLayout<'tcx>,
     enum_type_di_node: &'ll DIType,
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 d3239d5c358..df1df6d197e 100644
--- a/compiler/rustc_codegen_llvm/src/debuginfo/metadata/enums/mod.rs
+++ b/compiler/rustc_codegen_llvm/src/debuginfo/metadata/enums/mod.rs
@@ -6,11 +6,11 @@ use rustc_hir::def::CtorKind;
 use rustc_index::IndexSlice;
 use rustc_middle::{
     bug,
-    mir::GeneratorLayout,
+    mir::CoroutineLayout,
     ty::{
         self,
         layout::{IntegerExt, LayoutOf, PrimitiveExt, TyAndLayout},
-        AdtDef, GeneratorArgs, Ty, VariantDef,
+        AdtDef, CoroutineArgs, Ty, VariantDef,
     },
 };
 use rustc_span::Symbol;
@@ -66,14 +66,14 @@ pub(super) fn build_enum_type_di_node<'ll, 'tcx>(
     }
 }
 
-pub(super) fn build_generator_di_node<'ll, 'tcx>(
+pub(super) fn build_coroutine_di_node<'ll, 'tcx>(
     cx: &CodegenCx<'ll, 'tcx>,
     unique_type_id: UniqueTypeId<'tcx>,
 ) -> DINodeCreationResult<'ll> {
     if cpp_like_debuginfo(cx.tcx) {
-        cpp_like::build_generator_di_node(cx, unique_type_id)
+        cpp_like::build_coroutine_di_node(cx, unique_type_id)
     } else {
-        native::build_generator_di_node(cx, unique_type_id)
+        native::build_coroutine_di_node(cx, unique_type_id)
     }
 }
 
@@ -101,13 +101,13 @@ fn build_c_style_enum_di_node<'ll, 'tcx>(
     }
 }
 
-/// Extract the type with which we want to describe the tag of the given enum or generator.
+/// Extract the type with which we want to describe the tag of the given enum or coroutine.
 fn tag_base_type<'ll, 'tcx>(
     cx: &CodegenCx<'ll, 'tcx>,
     enum_type_and_layout: TyAndLayout<'tcx>,
 ) -> Ty<'tcx> {
     debug_assert!(match enum_type_and_layout.ty.kind() {
-        ty::Generator(..) => true,
+        ty::Coroutine(..) => true,
         ty::Adt(adt_def, _) => adt_def.is_enum(),
         _ => false,
     });
@@ -300,8 +300,8 @@ fn build_enum_variant_struct_type_di_node<'ll, 'tcx>(
     .di_node
 }
 
-/// Build the struct type for describing a single generator state.
-/// See [build_generator_variant_struct_type_di_node].
+/// Build the struct type for describing a single coroutine state.
+/// See [build_coroutine_variant_struct_type_di_node].
 ///
 /// ```txt
 ///
@@ -317,25 +317,25 @@ fn build_enum_variant_struct_type_di_node<'ll, 'tcx>(
 ///  --->   DW_TAG_structure_type            (type of variant 3)
 ///
 /// ```
-pub fn build_generator_variant_struct_type_di_node<'ll, 'tcx>(
+pub fn build_coroutine_variant_struct_type_di_node<'ll, 'tcx>(
     cx: &CodegenCx<'ll, 'tcx>,
     variant_index: VariantIdx,
-    generator_type_and_layout: TyAndLayout<'tcx>,
-    generator_type_di_node: &'ll DIType,
-    generator_layout: &GeneratorLayout<'tcx>,
+    coroutine_type_and_layout: TyAndLayout<'tcx>,
+    coroutine_type_di_node: &'ll DIType,
+    coroutine_layout: &CoroutineLayout<'tcx>,
     common_upvar_names: &IndexSlice<FieldIdx, Symbol>,
 ) -> &'ll DIType {
-    let variant_name = GeneratorArgs::variant_name(variant_index);
+    let variant_name = CoroutineArgs::variant_name(variant_index);
     let unique_type_id = UniqueTypeId::for_enum_variant_struct_type(
         cx.tcx,
-        generator_type_and_layout.ty,
+        coroutine_type_and_layout.ty,
         variant_index,
     );
 
-    let variant_layout = generator_type_and_layout.for_variant(cx, variant_index);
+    let variant_layout = coroutine_type_and_layout.for_variant(cx, variant_index);
 
-    let generator_args = match generator_type_and_layout.ty.kind() {
-        ty::Generator(_, args, _) => args.as_generator(),
+    let coroutine_args = match coroutine_type_and_layout.ty.kind() {
+        ty::Coroutine(_, args, _) => args.as_coroutine(),
         _ => unreachable!(),
     };
 
@@ -346,17 +346,17 @@ pub fn build_generator_variant_struct_type_di_node<'ll, 'tcx>(
             Stub::Struct,
             unique_type_id,
             &variant_name,
-            size_and_align_of(generator_type_and_layout),
-            Some(generator_type_di_node),
+            size_and_align_of(coroutine_type_and_layout),
+            Some(coroutine_type_di_node),
             DIFlags::FlagZero,
         ),
         |cx, variant_struct_type_di_node| {
             // Fields that just belong to this variant/state
             let state_specific_fields: SmallVec<_> = (0..variant_layout.fields.count())
                 .map(|field_index| {
-                    let generator_saved_local = generator_layout.variant_fields[variant_index]
+                    let coroutine_saved_local = coroutine_layout.variant_fields[variant_index]
                         [FieldIdx::from_usize(field_index)];
-                    let field_name_maybe = generator_layout.field_names[generator_saved_local];
+                    let field_name_maybe = coroutine_layout.field_names[coroutine_saved_local];
                     let field_name = field_name_maybe
                         .as_ref()
                         .map(|s| Cow::from(s.as_str()))
@@ -377,7 +377,7 @@ pub fn build_generator_variant_struct_type_di_node<'ll, 'tcx>(
                 .collect();
 
             // Fields that are common to all states
-            let common_fields: SmallVec<_> = generator_args
+            let common_fields: SmallVec<_> = coroutine_args
                 .prefix_tys()
                 .iter()
                 .zip(common_upvar_names)
@@ -388,7 +388,7 @@ pub fn build_generator_variant_struct_type_di_node<'ll, 'tcx>(
                         variant_struct_type_di_node,
                         upvar_name.as_str(),
                         cx.size_and_align_of(upvar_ty),
-                        generator_type_and_layout.fields.offset(index),
+                        coroutine_type_and_layout.fields.offset(index),
                         DIFlags::FlagZero,
                         type_di_node(cx, upvar_ty),
                     )
@@ -397,7 +397,7 @@ pub fn build_generator_variant_struct_type_di_node<'ll, 'tcx>(
 
             state_specific_fields.into_iter().chain(common_fields.into_iter()).collect()
         },
-        |cx| build_generic_type_param_di_nodes(cx, generator_type_and_layout.ty),
+        |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 feac40d8c30..7eff52b857f 100644
--- a/compiler/rustc_codegen_llvm/src/debuginfo/metadata/enums/native.rs
+++ b/compiler/rustc_codegen_llvm/src/debuginfo/metadata/enums/native.rs
@@ -110,12 +110,12 @@ pub(super) fn build_enum_type_di_node<'ll, 'tcx>(
     )
 }
 
-/// Build the debuginfo node for a generator environment. It looks the same as the debuginfo for
+/// Build the debuginfo node for a coroutine environment. It looks the same as the debuginfo for
 /// an enum. See [build_enum_type_di_node] for more information.
 ///
 /// ```txt
 ///
-///  ---> DW_TAG_structure_type              (top-level type for the generator)
+///  ---> DW_TAG_structure_type              (top-level type for the coroutine)
 ///         DW_TAG_variant_part              (variant part)
 ///           DW_AT_discr                    (reference to discriminant DW_TAG_member)
 ///           DW_TAG_member                  (discriminant member)
@@ -127,21 +127,21 @@ pub(super) fn build_enum_type_di_node<'ll, 'tcx>(
 ///         DW_TAG_structure_type            (type of variant 3)
 ///
 /// ```
-pub(super) fn build_generator_di_node<'ll, 'tcx>(
+pub(super) fn build_coroutine_di_node<'ll, 'tcx>(
     cx: &CodegenCx<'ll, 'tcx>,
     unique_type_id: UniqueTypeId<'tcx>,
 ) -> DINodeCreationResult<'ll> {
-    let generator_type = unique_type_id.expect_ty();
-    let &ty::Generator(generator_def_id, _, _) = generator_type.kind() else {
-        bug!("build_generator_di_node() called with non-generator type: `{:?}`", generator_type)
+    let coroutine_type = unique_type_id.expect_ty();
+    let &ty::Coroutine(coroutine_def_id, _, _) = coroutine_type.kind() else {
+        bug!("build_coroutine_di_node() called with non-coroutine type: `{:?}`", coroutine_type)
     };
 
-    let containing_scope = get_namespace_for_item(cx, generator_def_id);
-    let generator_type_and_layout = cx.layout_of(generator_type);
+    let containing_scope = get_namespace_for_item(cx, coroutine_def_id);
+    let coroutine_type_and_layout = cx.layout_of(coroutine_type);
 
-    debug_assert!(!wants_c_like_enum_debuginfo(generator_type_and_layout));
+    debug_assert!(!wants_c_like_enum_debuginfo(coroutine_type_and_layout));
 
-    let generator_type_name = compute_debuginfo_type_name(cx.tcx, generator_type, false);
+    let coroutine_type_name = compute_debuginfo_type_name(cx.tcx, coroutine_type, false);
 
     type_map::build_type_with_children(
         cx,
@@ -149,37 +149,37 @@ pub(super) fn build_generator_di_node<'ll, 'tcx>(
             cx,
             Stub::Struct,
             unique_type_id,
-            &generator_type_name,
-            size_and_align_of(generator_type_and_layout),
+            &coroutine_type_name,
+            size_and_align_of(coroutine_type_and_layout),
             Some(containing_scope),
             DIFlags::FlagZero,
         ),
-        |cx, generator_type_di_node| {
-            let generator_layout =
-                cx.tcx.optimized_mir(generator_def_id).generator_layout().unwrap();
+        |cx, coroutine_type_di_node| {
+            let coroutine_layout =
+                cx.tcx.optimized_mir(coroutine_def_id).coroutine_layout().unwrap();
 
             let Variants::Multiple { tag_encoding: TagEncoding::Direct, ref variants, .. } =
-                generator_type_and_layout.variants
+                coroutine_type_and_layout.variants
             else {
                 bug!(
-                    "Encountered generator with non-direct-tag layout: {:?}",
-                    generator_type_and_layout
+                    "Encountered coroutine with non-direct-tag layout: {:?}",
+                    coroutine_type_and_layout
                 )
             };
 
             let common_upvar_names =
-                cx.tcx.closure_saved_names_of_captured_variables(generator_def_id);
+                cx.tcx.closure_saved_names_of_captured_variables(coroutine_def_id);
 
             // Build variant struct types
             let variant_struct_type_di_nodes: SmallVec<_> = variants
                 .indices()
                 .map(|variant_index| {
                     // FIXME: This is problematic because just a number is not a valid identifier.
-                    //        GeneratorArgs::variant_name(variant_index), would be consistent
+                    //        CoroutineArgs::variant_name(variant_index), would be consistent
                     //        with enums?
                     let variant_name = format!("{}", variant_index.as_usize()).into();
 
-                    let span = generator_layout.variant_source_info[variant_index].span;
+                    let span = coroutine_layout.variant_source_info[variant_index].span;
                     let source_info = if !span.is_dummy() {
                         let loc = cx.lookup_debug_loc(span.lo());
                         Some((file_metadata(cx, &loc.file), loc.line))
@@ -191,12 +191,12 @@ pub(super) fn build_generator_di_node<'ll, 'tcx>(
                         variant_index,
                         variant_name,
                         variant_struct_type_di_node:
-                            super::build_generator_variant_struct_type_di_node(
+                            super::build_coroutine_variant_struct_type_di_node(
                                 cx,
                                 variant_index,
-                                generator_type_and_layout,
-                                generator_type_di_node,
-                                generator_layout,
+                                coroutine_type_and_layout,
+                                coroutine_type_di_node,
+                                coroutine_layout,
                                 &common_upvar_names,
                             ),
                         source_info,
@@ -206,18 +206,18 @@ pub(super) fn build_generator_di_node<'ll, 'tcx>(
 
             smallvec![build_enum_variant_part_di_node(
                 cx,
-                generator_type_and_layout,
-                generator_type_di_node,
+                coroutine_type_and_layout,
+                coroutine_type_di_node,
                 &variant_struct_type_di_nodes[..],
             )]
         },
-        // We don't seem to be emitting generic args on the generator type, it seems. Rather
+        // We don't seem to be emitting generic args on the coroutine type, it seems. Rather
         // they get attached to the struct type of each variant.
         NO_GENERICS,
     )
 }
 
-/// Builds the DW_TAG_variant_part of an enum or generator debuginfo node:
+/// Builds the DW_TAG_variant_part of an enum or coroutine debuginfo node:
 ///
 /// ```txt
 ///       DW_TAG_structure_type              (top-level type for enum)
@@ -306,11 +306,11 @@ fn build_enum_variant_part_di_node<'ll, 'tcx>(
 /// ```
 fn build_discr_member_di_node<'ll, 'tcx>(
     cx: &CodegenCx<'ll, 'tcx>,
-    enum_or_generator_type_and_layout: TyAndLayout<'tcx>,
-    enum_or_generator_type_di_node: &'ll DIType,
+    enum_or_coroutine_type_and_layout: TyAndLayout<'tcx>,
+    enum_or_coroutine_type_di_node: &'ll DIType,
 ) -> Option<&'ll DIType> {
-    let tag_name = match enum_or_generator_type_and_layout.ty.kind() {
-        ty::Generator(..) => "__state",
+    let tag_name = match enum_or_coroutine_type_and_layout.ty.kind() {
+        ty::Coroutine(..) => "__state",
         _ => "",
     };
 
@@ -320,14 +320,14 @@ fn build_discr_member_di_node<'ll, 'tcx>(
     //       In LLVM IR the wrong scope will be listed but when DWARF is
     //       generated from it, the DW_TAG_member will be a child the
     //       DW_TAG_variant_part.
-    let containing_scope = enum_or_generator_type_di_node;
+    let containing_scope = enum_or_coroutine_type_di_node;
 
-    match enum_or_generator_type_and_layout.layout.variants() {
+    match enum_or_coroutine_type_and_layout.layout.variants() {
         // A single-variant enum has no discriminant.
         &Variants::Single { .. } => None,
 
         &Variants::Multiple { tag_field, .. } => {
-            let tag_base_type = tag_base_type(cx, enum_or_generator_type_and_layout);
+            let tag_base_type = tag_base_type(cx, enum_or_coroutine_type_and_layout);
             let (size, align) = cx.size_and_align_of(tag_base_type);
 
             unsafe {
@@ -340,7 +340,7 @@ fn build_discr_member_di_node<'ll, 'tcx>(
                     UNKNOWN_LINE_NUMBER,
                     size.bits(),
                     align.bits() as u32,
-                    enum_or_generator_type_and_layout.fields.offset(tag_field).bits(),
+                    enum_or_coroutine_type_and_layout.fields.offset(tag_field).bits(),
                     DIFlags::FlagArtificial,
                     type_di_node(cx, tag_base_type),
                 ))
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 e30622cbdce..1aec65cf949 100644
--- a/compiler/rustc_codegen_llvm/src/debuginfo/metadata/type_map.rs
+++ b/compiler/rustc_codegen_llvm/src/debuginfo/metadata/type_map.rs
@@ -43,7 +43,7 @@ pub(super) enum UniqueTypeId<'tcx> {
     /// The ID of a regular type as it shows up at the language level.
     Ty(Ty<'tcx>, private::HiddenZst),
     /// The ID for the single DW_TAG_variant_part nested inside the top-level
-    /// DW_TAG_structure_type that describes enums and generators.
+    /// DW_TAG_structure_type that describes enums and coroutines.
     VariantPart(Ty<'tcx>, private::HiddenZst),
     /// The ID for the artificial struct type describing a single enum variant.
     VariantStructType(Ty<'tcx>, VariantIdx, private::HiddenZst),
diff --git a/compiler/rustc_codegen_llvm/src/debuginfo/mod.rs b/compiler/rustc_codegen_llvm/src/debuginfo/mod.rs
index d874b3ab99d..c8bf7286edf 100644
--- a/compiler/rustc_codegen_llvm/src/debuginfo/mod.rs
+++ b/compiler/rustc_codegen_llvm/src/debuginfo/mod.rs
@@ -342,7 +342,7 @@ impl<'ll, 'tcx> DebugInfoMethods<'tcx> for CodegenCx<'ll, 'tcx> {
 
         // We look up the generics of the enclosing function and truncate the args
         // to their length in order to cut off extra stuff that might be in there for
-        // closures or generators.
+        // closures or coroutines.
         let generics = tcx.generics_of(enclosing_fn_def_id);
         let args = instance.args.truncate_to(tcx, generics);
 
diff --git a/compiler/rustc_codegen_llvm/src/type_of.rs b/compiler/rustc_codegen_llvm/src/type_of.rs
index fd4c9572af2..712b6ed5333 100644
--- a/compiler/rustc_codegen_llvm/src/type_of.rs
+++ b/compiler/rustc_codegen_llvm/src/type_of.rs
@@ -42,7 +42,7 @@ fn uncached_llvm_type<'a, 'tcx>(
         // FIXME(eddyb) producing readable type names for trait objects can result
         // in problematically distinct types due to HRTB and subtyping (see #47638).
         // ty::Dynamic(..) |
-        ty::Adt(..) | ty::Closure(..) | ty::Foreign(..) | ty::Generator(..) | ty::Str
+        ty::Adt(..) | ty::Closure(..) | ty::Foreign(..) | ty::Coroutine(..) | ty::Str
             // For performance reasons we use names only when emitting LLVM IR.
             if !cx.sess().fewer_names() =>
         {
@@ -54,10 +54,10 @@ fn uncached_llvm_type<'a, 'tcx>(
                     write!(&mut name, "::{}", def.variant(index).name).unwrap();
                 }
             }
-            if let (&ty::Generator(_, _, _), &Variants::Single { index }) =
+            if let (&ty::Coroutine(_, _, _), &Variants::Single { index }) =
                 (layout.ty.kind(), &layout.variants)
             {
-                write!(&mut name, "::{}", ty::GeneratorArgs::variant_name(index)).unwrap();
+                write!(&mut name, "::{}", ty::CoroutineArgs::variant_name(index)).unwrap();
             }
             Some(name)
         }