Update prebuilt Clang to r416183b from Android.

https://android.googlesource.com/platform/prebuilts/clang/host/
linux-x86/+/06a71ddac05c22edb2d10b590e1769b3f8619bef

clang 12.0.5 (based on r416183b) from build 7284624.

Change-Id: I277a316abcf47307562d8b748b84870f31a72866
Signed-off-by: Olivier Deprez <olivier.deprez@arm.com>
diff --git a/linux-x64/clang/include/llvm/ExecutionEngine/Orc/IRCompileLayer.h b/linux-x64/clang/include/llvm/ExecutionEngine/Orc/IRCompileLayer.h
index ecff09b..f8fdb17 100644
--- a/linux-x64/clang/include/llvm/ExecutionEngine/Orc/IRCompileLayer.h
+++ b/linux-x64/clang/include/llvm/ExecutionEngine/Orc/IRCompileLayer.h
@@ -29,101 +29,44 @@
 
 class IRCompileLayer : public IRLayer {
 public:
-  using CompileFunction =
-      std::function<Expected<std::unique_ptr<MemoryBuffer>>(Module &)>;
+  class IRCompiler {
+  public:
+    IRCompiler(IRSymbolMapper::ManglingOptions MO) : MO(std::move(MO)) {}
+    virtual ~IRCompiler();
+    const IRSymbolMapper::ManglingOptions &getManglingOptions() const {
+      return MO;
+    }
+    virtual Expected<std::unique_ptr<MemoryBuffer>> operator()(Module &M) = 0;
 
-  using NotifyCompiledFunction =
-      std::function<void(VModuleKey K, ThreadSafeModule TSM)>;
+  protected:
+    IRSymbolMapper::ManglingOptions &manglingOptions() { return MO; }
+
+  private:
+    IRSymbolMapper::ManglingOptions MO;
+  };
+
+  using NotifyCompiledFunction = std::function<void(
+      MaterializationResponsibility &R, ThreadSafeModule TSM)>;
 
   IRCompileLayer(ExecutionSession &ES, ObjectLayer &BaseLayer,
-                 CompileFunction Compile);
+                 std::unique_ptr<IRCompiler> Compile);
+
+  IRCompiler &getCompiler() { return *Compile; }
 
   void setNotifyCompiled(NotifyCompiledFunction NotifyCompiled);
 
-  void emit(MaterializationResponsibility R, ThreadSafeModule TSM) override;
+  void emit(std::unique_ptr<MaterializationResponsibility> R,
+            ThreadSafeModule TSM) override;
 
 private:
   mutable std::mutex IRLayerMutex;
   ObjectLayer &BaseLayer;
-  CompileFunction Compile;
+  std::unique_ptr<IRCompiler> Compile;
+  const IRSymbolMapper::ManglingOptions *ManglingOpts;
   NotifyCompiledFunction NotifyCompiled = NotifyCompiledFunction();
 };
 
-/// Eager IR compiling layer.
-///
-///   This layer immediately compiles each IR module added via addModule to an
-/// object file and adds this module file to the layer below, which must
-/// implement the object layer concept.
-template <typename BaseLayerT, typename CompileFtor>
-class LegacyIRCompileLayer {
-public:
-  /// Callback type for notifications when modules are compiled.
-  using NotifyCompiledCallback =
-      std::function<void(VModuleKey K, std::unique_ptr<Module>)>;
-
-  /// Construct an LegacyIRCompileLayer with the given BaseLayer, which must
-  ///        implement the ObjectLayer concept.
-  LegacyIRCompileLayer(
-      BaseLayerT &BaseLayer, CompileFtor Compile,
-      NotifyCompiledCallback NotifyCompiled = NotifyCompiledCallback())
-      : BaseLayer(BaseLayer), Compile(std::move(Compile)),
-        NotifyCompiled(std::move(NotifyCompiled)) {}
-
-  /// Get a reference to the compiler functor.
-  CompileFtor& getCompiler() { return Compile; }
-
-  /// (Re)set the NotifyCompiled callback.
-  void setNotifyCompiled(NotifyCompiledCallback NotifyCompiled) {
-    this->NotifyCompiled = std::move(NotifyCompiled);
-  }
-
-  /// Compile the module, and add the resulting object to the base layer
-  ///        along with the given memory manager and symbol resolver.
-  Error addModule(VModuleKey K, std::unique_ptr<Module> M) {
-    if (auto Err = BaseLayer.addObject(std::move(K), Compile(*M)))
-      return Err;
-    if (NotifyCompiled)
-      NotifyCompiled(std::move(K), std::move(M));
-    return Error::success();
-  }
-
-  /// Remove the module associated with the VModuleKey K.
-  Error removeModule(VModuleKey K) { return BaseLayer.removeObject(K); }
-
-  /// Search for the given named symbol.
-  /// @param Name The name of the symbol to search for.
-  /// @param ExportedSymbolsOnly If true, search only for exported symbols.
-  /// @return A handle for the given named symbol, if it exists.
-  JITSymbol findSymbol(const std::string &Name, bool ExportedSymbolsOnly) {
-    return BaseLayer.findSymbol(Name, ExportedSymbolsOnly);
-  }
-
-  /// Get the address of the given symbol in compiled module represented
-  ///        by the handle H. This call is forwarded to the base layer's
-  ///        implementation.
-  /// @param K The VModuleKey for the module to search in.
-  /// @param Name The name of the symbol to search for.
-  /// @param ExportedSymbolsOnly If true, search only for exported symbols.
-  /// @return A handle for the given named symbol, if it is found in the
-  ///         given module.
-  JITSymbol findSymbolIn(VModuleKey K, const std::string &Name,
-                         bool ExportedSymbolsOnly) {
-    return BaseLayer.findSymbolIn(K, Name, ExportedSymbolsOnly);
-  }
-
-  /// Immediately emit and finalize the module represented by the given
-  ///        handle.
-  /// @param K The VModuleKey for the module to emit/finalize.
-  Error emitAndFinalize(VModuleKey K) { return BaseLayer.emitAndFinalize(K); }
-
-private:
-  BaseLayerT &BaseLayer;
-  CompileFtor Compile;
-  NotifyCompiledCallback NotifyCompiled;
-};
-
 } // end namespace orc
-
 } // end namespace llvm
 
 #endif // LLVM_EXECUTIONENGINE_ORC_IRCOMPILINGLAYER_H