Rollup of 5 pull requests

src/bootstrap/compile.rs

@@ -1012,4 +1012,7 @@ pub enum CargoMessage<'a> {
     BuildScriptExecuted {
         package_id: Cow<'a, str>,
     },
+    BuildFinished {
+        success: bool,
+    },
 }

src/librustc_builtin_macros/format.rs

@@ -410,7 +410,9 @@ impl<'a, 'b> Context<'a, 'b> {
                                 .iter()
                                 .filter(|fmt| fmt.precision_span.is_some())
                                 .count();
-                        e.span_label(span, &format!(
+                        e.span_label(
+                            span,
+                            &format!(
                             "this precision flag adds an extra required argument at position {}, \
                              which is why there {} expected",
                             pos,
@@ -419,7 +421,8 @@ impl<'a, 'b> Context<'a, 'b> {
                             } else {
                                 format!("are {} arguments", count)
                             },
-                        ));
+                        ),
+                        );
                         if let Some(arg) = self.args.get(pos) {
                             e.span_label(
                                 arg.span,

src/librustc_codegen_llvm/debuginfo/mod.rs

@@ -290,7 +290,7 @@ impl DebugInfoMethods<'tcx> for CodegenCx<'ll, 'tcx> {
             spflags |= DISPFlags::SPFlagOptimized;
         }
         if let Some((id, _)) = self.tcx.entry_fn(LOCAL_CRATE) {
-            if id == def_id {
+            if id.to_def_id() == def_id {
                 spflags |= DISPFlags::SPFlagMainSubprogram;
             }
         }

src/librustc_codegen_ssa/base.rs

@@ -30,7 +30,7 @@ use rustc_data_structures::fx::FxHashMap;
 use rustc_data_structures::profiling::print_time_passes_entry;
 use rustc_data_structures::sync::{par_iter, Lock, ParallelIterator};
 use rustc_hir as hir;
-use rustc_hir::def_id::{DefId, LOCAL_CRATE};
+use rustc_hir::def_id::{LocalDefId, LOCAL_CRATE};
 use rustc_hir::lang_items::StartFnLangItem;
 use rustc_index::vec::Idx;
 use rustc_middle::middle::codegen_fn_attrs::CodegenFnAttrs;
@@ -397,7 +397,7 @@ pub fn maybe_create_entry_wrapper<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>>(
         None => return None,
     };
 
-    let instance = Instance::mono(cx.tcx(), main_def_id);
+    let instance = Instance::mono(cx.tcx(), main_def_id.to_def_id());
 
     if !cx.codegen_unit().contains_item(&MonoItem::Fn(instance)) {
         // We want to create the wrapper in the same codegen unit as Rust's main
@@ -416,7 +416,7 @@ pub fn maybe_create_entry_wrapper<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>>(
         cx: &'a Bx::CodegenCx,
         sp: Span,
         rust_main: Bx::Value,
-        rust_main_def_id: DefId,
+        rust_main_def_id: LocalDefId,
         use_start_lang_item: bool,
     ) -> Bx::Function {
         // The entry function is either `int main(void)` or `int main(int argc, char **argv)`,

src/librustc_hir/hir.rs

@@ -1601,7 +1601,7 @@ pub enum ExprKind<'hir> {
 ///
 /// To resolve the path to a `DefId`, call [`qpath_res`].
 ///
-/// [`qpath_res`]: ../ty/struct.TypeckTables.html#method.qpath_res
+/// [`qpath_res`]: ../rustc_middle/ty/struct.TypeckTables.html#method.qpath_res
 #[derive(RustcEncodable, RustcDecodable, Debug, HashStable_Generic)]
 pub enum QPath<'hir> {
     /// Path to a definition, optionally "fully-qualified" with a `Self`

src/librustc_interface/passes.rs

@@ -835,7 +835,7 @@ fn analysis(tcx: TyCtxt<'_>, cnum: CrateNum) -> Result<()> {
     });
 
     sess.time("MIR_borrow_checking", || {
-        tcx.par_body_owners(|def_id| tcx.ensure().mir_borrowck(def_id.to_def_id()));
+        tcx.par_body_owners(|def_id| tcx.ensure().mir_borrowck(def_id));
     });
 
     sess.time("dumping_chalk_like_clauses", || {

src/librustc_interface/queries.rs

@@ -293,7 +293,7 @@ impl<'tcx> Queries<'tcx> {
             _ => return,
         };
 
-        let attrs = &*tcx.get_attrs(def_id);
+        let attrs = &*tcx.get_attrs(def_id.to_def_id());
         let attrs = attrs.iter().filter(|attr| attr.check_name(sym::rustc_error));
         for attr in attrs {
             match attr.meta_item_list() {

src/librustc_lint/lib.rs

@@ -56,7 +56,7 @@ mod unused;
 
 use rustc_ast::ast;
 use rustc_hir as hir;
-use rustc_hir::def_id::DefId;
+use rustc_hir::def_id::LocalDefId;
 use rustc_middle::ty::query::Providers;
 use rustc_middle::ty::TyCtxt;
 use rustc_session::lint::builtin::{
@@ -90,12 +90,8 @@ pub fn provide(providers: &mut Providers<'_>) {
     *providers = Providers { lint_mod, ..*providers };
 }
 
-fn lint_mod(tcx: TyCtxt<'_>, module_def_id: DefId) {
-    late::late_lint_mod(
-        tcx,
-        module_def_id.expect_local(),
-        BuiltinCombinedModuleLateLintPass::new(),
-    );
+fn lint_mod(tcx: TyCtxt<'_>, module_def_id: LocalDefId) {
+    late::late_lint_mod(tcx, module_def_id, BuiltinCombinedModuleLateLintPass::new());
 }
 
 macro_rules! pre_expansion_lint_passes {

src/librustc_metadata/rmeta/encoder.rs

@@ -5,12 +5,11 @@ use log::{debug, trace};
 use rustc_ast::ast::{self, Ident};
 use rustc_ast::attr;
 use rustc_data_structures::fingerprint::Fingerprint;
-use rustc_data_structures::fx::FxHashMap;
+use rustc_data_structures::fx::{FxHashMap, FxHashSet};
 use rustc_data_structures::stable_hasher::StableHasher;
 use rustc_data_structures::sync::{join, Lrc};
 use rustc_hir as hir;
 use rustc_hir::def::CtorKind;
-use rustc_hir::def_id::DefIdSet;
 use rustc_hir::def_id::{CrateNum, DefId, DefIndex, LocalDefId, CRATE_DEF_INDEX, LOCAL_CRATE};
 use rustc_hir::definitions::DefPathTable;
 use rustc_hir::intravisit::{self, NestedVisitorMap, Visitor};
@@ -644,8 +643,8 @@ impl EncodeContext<'tcx> {
         self.encode_generics(def_id);
         self.encode_explicit_predicates(def_id);
         self.encode_inferred_outlives(def_id);
-        self.encode_optimized_mir(def_id);
-        self.encode_promoted_mir(def_id);
+        self.encode_optimized_mir(def_id.expect_local());
+        self.encode_promoted_mir(def_id.expect_local());
     }
 
     fn encode_enum_variant_ctor(&mut self, def: &ty::AdtDef, index: VariantIdx) {
@@ -683,8 +682,8 @@ impl EncodeContext<'tcx> {
         self.encode_generics(def_id);
         self.encode_explicit_predicates(def_id);
         self.encode_inferred_outlives(def_id);
-        self.encode_optimized_mir(def_id);
-        self.encode_promoted_mir(def_id);
+        self.encode_optimized_mir(def_id.expect_local());
+        self.encode_promoted_mir(def_id.expect_local());
     }
 
     fn encode_info_for_mod(
@@ -786,8 +785,8 @@ impl EncodeContext<'tcx> {
         self.encode_generics(def_id);
         self.encode_explicit_predicates(def_id);
         self.encode_inferred_outlives(def_id);
-        self.encode_optimized_mir(def_id);
-        self.encode_promoted_mir(def_id);
+        self.encode_optimized_mir(def_id.expect_local());
+        self.encode_promoted_mir(def_id.expect_local());
     }
 
     fn encode_generics(&mut self, def_id: DefId) {
@@ -896,8 +895,8 @@ impl EncodeContext<'tcx> {
         self.encode_inferred_outlives(def_id);
 
         // This should be kept in sync with `PrefetchVisitor.visit_trait_item`.
-        self.encode_optimized_mir(def_id);
-        self.encode_promoted_mir(def_id);
+        self.encode_optimized_mir(def_id.expect_local());
+        self.encode_promoted_mir(def_id.expect_local());
     }
 
     fn metadata_output_only(&self) -> bool {
@@ -985,8 +984,8 @@ impl EncodeContext<'tcx> {
             hir::ImplItemKind::OpaqueTy(..) | hir::ImplItemKind::TyAlias(..) => false,
         };
         if mir {
-            self.encode_optimized_mir(def_id);
-            self.encode_promoted_mir(def_id);
+            self.encode_optimized_mir(def_id.expect_local());
+            self.encode_promoted_mir(def_id.expect_local());
         }
     }
 
@@ -1004,17 +1003,17 @@ impl EncodeContext<'tcx> {
         self.lazy(param_names.iter().map(|ident| ident.name))
     }
 
-    fn encode_optimized_mir(&mut self, def_id: DefId) {
+    fn encode_optimized_mir(&mut self, def_id: LocalDefId) {
         debug!("EntryBuilder::encode_mir({:?})", def_id);
         if self.tcx.mir_keys(LOCAL_CRATE).contains(&def_id) {
-            record!(self.tables.mir[def_id] <- self.tcx.optimized_mir(def_id));
+            record!(self.tables.mir[def_id.to_def_id()] <- self.tcx.optimized_mir(def_id));
         }
     }
 
-    fn encode_promoted_mir(&mut self, def_id: DefId) {
+    fn encode_promoted_mir(&mut self, def_id: LocalDefId) {
         debug!("EncodeContext::encode_promoted_mir({:?})", def_id);
         if self.tcx.mir_keys(LOCAL_CRATE).contains(&def_id) {
-            record!(self.tables.promoted_mir[def_id] <- self.tcx.promoted_mir(def_id));
+            record!(self.tables.promoted_mir[def_id.to_def_id()] <- self.tcx.promoted_mir(def_id));
         }
     }
 
@@ -1282,8 +1281,8 @@ impl EncodeContext<'tcx> {
             _ => false,
         };
         if mir {
-            self.encode_optimized_mir(def_id);
-            self.encode_promoted_mir(def_id);
+            self.encode_optimized_mir(def_id.expect_local());
+            self.encode_promoted_mir(def_id.expect_local());
         }
     }
 
@@ -1316,8 +1315,7 @@ impl EncodeContext<'tcx> {
         let hir_id = self.tcx.hir().as_local_hir_id(def_id);
         let ty = self.tcx.typeck_tables_of(def_id).node_type(hir_id);
 
-        let def_id = def_id.to_def_id();
-        record!(self.tables.kind[def_id] <- match ty.kind {
+        record!(self.tables.kind[def_id.to_def_id()] <- match ty.kind {
             ty::Generator(..) => {
                 let data = self.tcx.generator_kind(def_id).unwrap();
                 EntryKind::Generator(data)
@@ -1327,14 +1325,14 @@ impl EncodeContext<'tcx> {
 
             _ => bug!("closure that is neither generator nor closure"),
         });
-        record!(self.tables.visibility[def_id] <- ty::Visibility::Public);
-        record!(self.tables.span[def_id] <- self.tcx.def_span(def_id));
-        record!(self.tables.attributes[def_id] <- &self.tcx.get_attrs(def_id)[..]);
-        self.encode_item_type(def_id);
+        record!(self.tables.visibility[def_id.to_def_id()] <- ty::Visibility::Public);
+        record!(self.tables.span[def_id.to_def_id()] <- self.tcx.def_span(def_id));
+        record!(self.tables.attributes[def_id.to_def_id()] <- &self.tcx.get_attrs(def_id.to_def_id())[..]);
+        self.encode_item_type(def_id.to_def_id());
         if let ty::Closure(def_id, substs) = ty.kind {
             record!(self.tables.fn_sig[def_id] <- substs.as_closure().sig());
         }
-        self.encode_generics(def_id);
+        self.encode_generics(def_id.to_def_id());
         self.encode_optimized_mir(def_id);
         self.encode_promoted_mir(def_id);
     }
@@ -1344,16 +1342,15 @@ impl EncodeContext<'tcx> {
         let id = self.tcx.hir().as_local_hir_id(def_id);
         let body_id = self.tcx.hir().body_owned_by(id);
         let const_data = self.encode_rendered_const_for_body(body_id);
-        let def_id = def_id.to_def_id();
         let qualifs = self.tcx.mir_const_qualif(def_id);
 
-        record!(self.tables.kind[def_id] <- EntryKind::Const(qualifs, const_data));
-        record!(self.tables.visibility[def_id] <- ty::Visibility::Public);
-        record!(self.tables.span[def_id] <- self.tcx.def_span(def_id));
-        self.encode_item_type(def_id);
-        self.encode_generics(def_id);
-        self.encode_explicit_predicates(def_id);
-        self.encode_inferred_outlives(def_id);
+        record!(self.tables.kind[def_id.to_def_id()] <- EntryKind::Const(qualifs, const_data));
+        record!(self.tables.visibility[def_id.to_def_id()] <- ty::Visibility::Public);
+        record!(self.tables.span[def_id.to_def_id()] <- self.tcx.def_span(def_id));
+        self.encode_item_type(def_id.to_def_id());
+        self.encode_generics(def_id.to_def_id());
+        self.encode_explicit_predicates(def_id.to_def_id());
+        self.encode_inferred_outlives(def_id.to_def_id());
         self.encode_optimized_mir(def_id);
         self.encode_promoted_mir(def_id);
     }
@@ -1726,12 +1723,11 @@ impl<'tcx, 'v> ItemLikeVisitor<'v> for ImplVisitor<'tcx> {
 /// Only a subset of the queries are actually prefetched to keep this code smaller.
 struct PrefetchVisitor<'tcx> {
     tcx: TyCtxt<'tcx>,
-    mir_keys: &'tcx DefIdSet,
+    mir_keys: &'tcx FxHashSet<LocalDefId>,
 }
 
 impl<'tcx> PrefetchVisitor<'tcx> {
     fn prefetch_mir(&self, def_id: LocalDefId) {
-        let def_id = def_id.to_def_id();
         if self.mir_keys.contains(&def_id) {
             self.tcx.optimized_mir(def_id);
             self.tcx.promoted_mir(def_id);

src/librustc_middle/arena.rs

@@ -34,7 +34,8 @@ macro_rules! arena_types {
                 rustc_hir::def_id::DefId,
                 rustc_middle::ty::subst::SubstsRef<$tcx>
             )>,
-            [few, decode] mir_keys: rustc_hir::def_id::DefIdSet,
+            [few, decode] collect_and_partition_mono_items: rustc_hir::def_id::DefIdSet,
+            [few, decode] mir_keys: rustc_data_structures::fx::FxHashSet<rustc_hir::def_id::LocalDefId>,
             [decode] specialization_graph: rustc_middle::traits::specialization_graph::Graph,
             [] region_scope_tree: rustc_middle::middle::region::ScopeTree,
             [] item_local_set: rustc_hir::ItemLocalSet,

src/librustc_middle/mir/mono.rs

@@ -7,7 +7,7 @@ use rustc_data_structures::base_n;
 use rustc_data_structures::fingerprint::Fingerprint;
 use rustc_data_structures::fx::FxHashMap;
 use rustc_data_structures::stable_hasher::{HashStable, StableHasher};
-use rustc_hir::def_id::{CrateNum, DefId, LOCAL_CRATE};
+use rustc_hir::def_id::{CrateNum, DefId, LocalDefId, LOCAL_CRATE};
 use rustc_hir::HirId;
 use rustc_session::config::OptLevel;
 use rustc_span::source_map::Span;
@@ -95,7 +95,7 @@ impl<'tcx> MonoItem<'tcx> {
                 // linkage, then we'll be creating a globally shared version.
                 if self.explicit_linkage(tcx).is_some()
                     || !instance.def.generates_cgu_internal_copy(tcx)
-                    || Some(instance.def_id()) == entry_def_id
+                    || Some(instance.def_id()) == entry_def_id.map(LocalDefId::to_def_id)
                 {
                     return InstantiationMode::GloballyShared { may_conflict: false };
                 }