More accurate function naming

Author: oli-obk

compiler/rustc_codegen_cranelift/src/lib.rs

@@ -249,7 +249,7 @@ impl CodegenBackend for CraneliftCodegenBackend {
         link_binary(sess, &crate::archive::ArArchiveBuilderBuilder, &codegen_results, outputs)
     }
 
-    fn implemented_intrinsics(&self) -> &'static [Symbol] {
+    fn overridden_intrinsics(&self) -> &'static [Symbol] {
         &[]
     }
 }

compiler/rustc_codegen_gcc/src/lib.rs

@@ -244,7 +244,7 @@ impl CodegenBackend for GccCodegenBackend {
         target_features(sess, allow_unstable, &self.target_info)
     }
 
-    fn implemented_intrinsics(&self) -> &'static [Symbol] {
+    fn overridden_intrinsics(&self) -> &'static [Symbol] {
         &[sym::is_val_statically_known]
     }
 }

compiler/rustc_codegen_llvm/src/lib.rs

@@ -403,7 +403,7 @@ impl CodegenBackend for LlvmCodegenBackend {
         link_binary(sess, &LlvmArchiveBuilderBuilder, &codegen_results, outputs)
     }
 
-    fn implemented_intrinsics(&self) -> &'static [Symbol] {
+    fn overridden_intrinsics(&self) -> &'static [Symbol] {
         &[sym::is_val_statically_known]
     }
 }

compiler/rustc_codegen_ssa/src/traits/backend.rs

@@ -112,8 +112,11 @@ pub trait CodegenBackend {
         outputs: &OutputFilenames,
     ) -> Result<(), ErrorGuaranteed>;
 
-    /// Returns the list of intrinsics that should not use their fallback body
-    fn implemented_intrinsics(&self) -> &'static [Symbol];
+    /// Returns the list of intrinsics that the backend has custom codegen logic for
+    /// and should thus not use their default (pure Rust) bodies.
+    /// This only works for `rustc_intrinsic` intrinsics, not `extern "rust-intrinsic"`
+    /// intrinsics.
+    fn overridden_intrinsics(&self) -> &'static [Symbol];
 }
 
 pub trait ExtraBackendMethods:

compiler/rustc_interface/src/queries.rs

@@ -165,8 +165,8 @@ impl<'tcx> Queries<'tcx> {
                 feed.crate_name(crate_name);
 
                 let feed = tcx.feed_unit_query();
-                feed.intrinsics_implemented_by_backend(
-                    self.compiler.codegen_backend.implemented_intrinsics(),
+                feed.intrinsics_overridden_by_backend(
+                    self.compiler.codegen_backend.overridden_intrinsics(),
                 );
                 feed.features_query(tcx.arena.alloc(rustc_expand::config::features(
                     sess,

compiler/rustc_middle/src/query/mod.rs

@@ -2105,7 +2105,7 @@ rustc_queries! {
         desc { "looking up enabled feature gates" }
     }
 
-    query intrinsics_implemented_by_backend(_: ()) -> &'static [Symbol] {
+    query intrinsics_overridden_by_backend(_: ()) -> &'static [Symbol] {
         feedable
         desc { "list of intrinsics with default bodies supported by the codegen backend" }
     }

compiler/rustc_middle/src/ty/util.rs

@@ -1549,7 +1549,7 @@ pub fn intrinsic(tcx: TyCtxt<'_>, def_id: LocalDefId) -> Option<Symbol> {
                 .ident()
                 .unwrap()
                 .name;
-        tcx.intrinsics_implemented_by_backend(()).contains(&name).then_some(name)
+        tcx.intrinsics_overridden_by_backend(()).contains(&name).then_some(name)
     } else {
         None
     }

tests/run-make-fulldeps/hotplug_codegen_backend/the_backend.rs

@@ -89,7 +89,7 @@ impl CodegenBackend for TheBackend {
         Ok(())
     }
 
-    fn implemented_intrinsics(&self) -> &'static [Symbol] {
+    fn overridden_intrinsics(&self) -> &'static [Symbol] {
         &[]
     }
 }