From f5c3e83013700835cfd64215b482b8dffe1f71be Mon Sep 17 00:00:00 2001
From: bjorn3 <bjorn3@users.noreply.github.com>
Date: Sun, 30 May 2021 17:24:54 +0200
Subject: Avoid a branch on key being local for queries that use the same local
 and extern providers

---
 compiler/rustc_interface/src/interface.rs | 4 ++--
 compiler/rustc_interface/src/passes.rs    | 7 +++----
 2 files changed, 5 insertions(+), 6 deletions(-)

(limited to 'compiler/rustc_interface/src')

diff --git a/compiler/rustc_interface/src/interface.rs b/compiler/rustc_interface/src/interface.rs
index 81585f8f4e4..7a6a643e3d0 100644
--- a/compiler/rustc_interface/src/interface.rs
+++ b/compiler/rustc_interface/src/interface.rs
@@ -38,7 +38,7 @@ pub struct Compiler {
     pub(crate) output_file: Option<PathBuf>,
     pub(crate) register_lints: Option<Box<dyn Fn(&Session, &mut LintStore) + Send + Sync>>,
     pub(crate) override_queries:
-        Option<fn(&Session, &mut ty::query::Providers, &mut ty::query::Providers)>,
+        Option<fn(&Session, &mut ty::query::Providers, &mut ty::query::ExternProviders)>,
 }
 
 impl Compiler {
@@ -155,7 +155,7 @@ pub struct Config {
     ///
     /// The second parameter is local providers and the third parameter is external providers.
     pub override_queries:
-        Option<fn(&Session, &mut ty::query::Providers, &mut ty::query::Providers)>,
+        Option<fn(&Session, &mut ty::query::Providers, &mut ty::query::ExternProviders)>,
 
     /// This is a callback from the driver that is called to create a codegen backend.
     pub make_codegen_backend:
diff --git a/compiler/rustc_interface/src/passes.rs b/compiler/rustc_interface/src/passes.rs
index eea32083568..62f5f09aa48 100644
--- a/compiler/rustc_interface/src/passes.rs
+++ b/compiler/rustc_interface/src/passes.rs
@@ -19,7 +19,7 @@ use rustc_metadata::creader::CStore;
 use rustc_metadata::{encode_metadata, EncodedMetadata};
 use rustc_middle::arena::Arena;
 use rustc_middle::dep_graph::DepGraph;
-use rustc_middle::ty::query::Providers;
+use rustc_middle::ty::query::{ExternProviders, Providers};
 use rustc_middle::ty::{self, GlobalCtxt, ResolverOutputs, TyCtxt};
 use rustc_mir_build as mir_build;
 use rustc_parse::{parse_crate_from_file, parse_crate_from_source_str, validate_attr};
@@ -764,8 +764,8 @@ pub static DEFAULT_QUERY_PROVIDERS: SyncLazy<Providers> = SyncLazy::new(|| {
     *providers
 });
 
-pub static DEFAULT_EXTERN_QUERY_PROVIDERS: SyncLazy<Providers> = SyncLazy::new(|| {
-    let mut extern_providers = *DEFAULT_QUERY_PROVIDERS;
+pub static DEFAULT_EXTERN_QUERY_PROVIDERS: SyncLazy<ExternProviders> = SyncLazy::new(|| {
+    let mut extern_providers = ExternProviders::default();
     rustc_metadata::provide_extern(&mut extern_providers);
     rustc_codegen_ssa::provide_extern(&mut extern_providers);
     extern_providers
@@ -816,7 +816,6 @@ pub fn create_global_ctxt<'tcx>(
     codegen_backend.provide(&mut local_providers);
 
     let mut extern_providers = *DEFAULT_EXTERN_QUERY_PROVIDERS;
-    codegen_backend.provide(&mut extern_providers);
     codegen_backend.provide_extern(&mut extern_providers);
 
     if let Some(callback) = compiler.override_queries {
-- 
cgit 1.4.1-3-g733a5