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/llvm/PreferIsaOrDynCastInConditionalsCheck.h b/linux-x64/clang/include/clang-tidy/llvm/PreferIsaOrDynCastInConditionalsCheck.h
new file mode 100644
index 0000000..723475b
--- /dev/null
+++ b/linux-x64/clang/include/clang-tidy/llvm/PreferIsaOrDynCastInConditionalsCheck.h
@@ -0,0 +1,67 @@
+//===--- PreferIsaOrDynCastInConditionalsCheck.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_LLVM_PREFERISAORDYNCASTINCONDITIONALSCHECK_H
+#define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_LLVM_PREFERISAORDYNCASTINCONDITIONALSCHECK_H
+
+#include "../ClangTidyCheck.h"
+
+namespace clang {
+namespace tidy {
+namespace llvm_check {
+
+/// Looks at conditionals and finds and replaces cases of ``cast<>``, which will
+/// assert rather than return a null pointer, and ``dyn_cast<>`` where
+/// the return value is not captured. Additionally, finds and replaces cases that match the
+/// pattern ``var && isa<X>(var)``, where ``var`` is evaluated twice.
+///
+/// Finds cases like these:
+/// \code
+/// if (auto x = cast<X>(y)) {}
+/// // is replaced by:
+/// if (auto x = dyn_cast<X>(y)) {}
+///
+/// if (cast<X>(y)) {}
+/// // is replaced by:
+/// if (isa<X>(y)) {}
+///
+/// if (dyn_cast<X>(y)) {}
+/// // is replaced by:
+/// if (isa<X>(y)) {}
+///
+/// if (var && isa<T>(var)) {}
+/// // is replaced by:
+/// if (isa_and_nonnull<T>(var.foo())) {}
+/// \endcode
+///
+/// // Other cases are ignored, e.g.:
+/// \code
+/// if (auto f = cast<Z>(y)->foo()) {}
+/// if (cast<Z>(y)->foo()) {}
+/// if (X.cast(y)) {}
+/// \endcode
+///
+/// For the user-facing documentation see:
+/// http://clang.llvm.org/extra/clang-tidy/checks/llvm-prefer-isa-or-dyn-cast-in-conditionals.html
+class PreferIsaOrDynCastInConditionalsCheck : public ClangTidyCheck {
+public:
+ PreferIsaOrDynCastInConditionalsCheck(StringRef Name,
+ ClangTidyContext *Context)
+ : ClangTidyCheck(Name, 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;
+};
+
+} // namespace llvm_check
+} // namespace tidy
+} // namespace clang
+
+#endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_LLVM_PREFERISAORDYNCASTINCONDITIONALSCHECK_H