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/clang-tidy/performance/UnnecessaryCopyInitialization.h b/linux-x64/clang/include/clang-tidy/performance/UnnecessaryCopyInitialization.h
new file mode 100644
index 0000000..eeb9138
--- /dev/null
+++ b/linux-x64/clang/include/clang-tidy/performance/UnnecessaryCopyInitialization.h
@@ -0,0 +1,50 @@
+//===--- UnnecessaryCopyInitialization.h - clang-tidy------------*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_PERFORMANCE_UNNECESSARY_COPY_INITIALIZATION_H
+#define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_PERFORMANCE_UNNECESSARY_COPY_INITIALIZATION_H
+
+#include "../ClangTidyCheck.h"
+
+namespace clang {
+namespace tidy {
+namespace performance {
+
+// The check detects local variable declarations that are copy initialized with
+// the const reference of a function call or the const reference of a method
+// call whose object is guaranteed to outlive the variable's scope and suggests
+// to use a const reference.
+//
+// The check currently only understands a subset of variables that are
+// guaranteed to outlive the const reference returned, namely: const variables,
+// const references, and const pointers to const.
+class UnnecessaryCopyInitialization : public ClangTidyCheck {
+public:
+ UnnecessaryCopyInitialization(StringRef Name, ClangTidyContext *Context);
+ bool isLanguageVersionSupported(const LangOptions &LangOpts) const override{
+ return LangOpts.CPlusPlus;
+ }
+ void registerMatchers(ast_matchers::MatchFinder *Finder) override;
+ void check(const ast_matchers::MatchFinder::MatchResult &Result) override;
+ void storeOptions(ClangTidyOptions::OptionMap &Opts) override;
+
+private:
+ void handleCopyFromMethodReturn(const VarDecl &Var, const Stmt &BlockStmt,
+ bool IssueFix, const VarDecl *ObjectArg,
+ ASTContext &Context);
+ void handleCopyFromLocalVar(const VarDecl &NewVar, const VarDecl &OldVar,
+ const Stmt &BlockStmt, bool IssueFix,
+ ASTContext &Context);
+ const std::vector<std::string> AllowedTypes;
+};
+
+} // namespace performance
+} // namespace tidy
+} // namespace clang
+
+#endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_PERFORMANCE_UNNECESSARY_COPY_INITIALIZATION_H