Index: clang-tidy/misc/CMakeLists.txt
===================================================================
--- clang-tidy/misc/CMakeLists.txt
+++ clang-tidy/misc/CMakeLists.txt
@@ -12,6 +12,7 @@
   MiscTidyModule.cpp
   MoveConstructorInitCheck.cpp
   NewDeleteOverloadsCheck.cpp
+  NoReinterpretCastCheck.cpp
   NoexceptMoveConstructorCheck.cpp
   NonCopyableObjects.cpp
   SizeofContainerCheck.cpp
Index: clang-tidy/misc/MiscTidyModule.cpp
===================================================================
--- clang-tidy/misc/MiscTidyModule.cpp
+++ clang-tidy/misc/MiscTidyModule.cpp
@@ -20,6 +20,7 @@
 #include "MacroRepeatedSideEffectsCheck.h"
 #include "MoveConstructorInitCheck.h"
 #include "NewDeleteOverloadsCheck.h"
+#include "NoReinterpretCastCheck.h"
 #include "NoexceptMoveConstructorCheck.h"
 #include "NonCopyableObjects.h"
 #include "SizeofContainerCheck.h"
@@ -57,6 +58,8 @@
         "misc-move-constructor-init");
     CheckFactories.registerCheck<NewDeleteOverloadsCheck>(
         "misc-new-delete-overloads");
+    CheckFactories.registerCheck<NoReinterpretCastCheck>(
+        "misc-no-reinterpret-cast");
     CheckFactories.registerCheck<NoexceptMoveConstructorCheck>(
         "misc-noexcept-move-constructor");
     CheckFactories.registerCheck<NonCopyableObjectsCheck>(
Index: clang-tidy/misc/NoReinterpretCastCheck.h
===================================================================
--- /dev/null
+++ clang-tidy/misc/NoReinterpretCastCheck.h
@@ -0,0 +1,33 @@
+//===--- NoReinterpretCastCheck.h - clang-tidy------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_MISC_NO_REINTERPRETCAST_H
+#define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_MISC_NO_REINTERPRETCAST_H
+
+#include "../ClangTidy.h"
+
+namespace clang {
+namespace tidy {
+
+/// Flags all occurrences of reinterpret_cast 
+///
+/// For the user-facing documentation see:
+/// http://clang.llvm.org/extra/clang-tidy/checks/misc-no-reinterpret-cast.html
+class NoReinterpretCastCheck : public ClangTidyCheck {
+public:
+  NoReinterpretCastCheck(StringRef Name, ClangTidyContext *Context)
+      : ClangTidyCheck(Name, Context) {}
+  void registerMatchers(ast_matchers::MatchFinder *Finder) override;
+  void check(const ast_matchers::MatchFinder::MatchResult &Result) override;
+};
+
+} // namespace tidy
+} // namespace clang
+
+#endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_MISC_NO_REINTERPRETCAST_H
Index: clang-tidy/misc/NoReinterpretCastCheck.cpp
===================================================================
--- /dev/null
+++ clang-tidy/misc/NoReinterpretCastCheck.cpp
@@ -0,0 +1,34 @@
+//===--- NoReinterpretCastCheck.cpp - clang-tidy--------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "NoReinterpretCastCheck.h"
+#include "clang/AST/ASTContext.h"
+#include "clang/ASTMatchers/ASTMatchFinder.h"
+
+using namespace clang::ast_matchers;
+
+namespace clang {
+namespace tidy {
+
+void NoReinterpretCastCheck::registerMatchers(MatchFinder *Finder) {
+  if (!getLangOpts().CPlusPlus)
+    return;
+  
+  Finder->addMatcher(cxxReinterpretCastExpr().bind("cast"), this);
+}
+
+void NoReinterpretCastCheck::check(const MatchFinder::MatchResult &Result) {
+  const auto *MatchedCast =
+      Result.Nodes.getNodeAs<CXXReinterpretCastExpr>("cast");
+  diag(MatchedCast->getOperatorLoc(),
+       "do not use reinterpret_cast (C++ Core Guidelines, rule Type.1)");
+}
+
+} // namespace tidy
+} // namespace clang
Index: docs/clang-tidy/checks/list.rst
===================================================================
--- docs/clang-tidy/checks/list.rst
+++ docs/clang-tidy/checks/list.rst
@@ -31,6 +31,7 @@
    misc-macro-repeated-side-effects
    misc-move-constructor-init
    misc-new-delete-overloads
+   misc-no-reinterpret-cast
    misc-noexcept-move-constructor
    misc-non-copyable-objects
    misc-sizeof-container
Index: docs/clang-tidy/checks/misc-no-reinterpret-cast.rst
===================================================================
--- /dev/null
+++ docs/clang-tidy/checks/misc-no-reinterpret-cast.rst
@@ -0,0 +1,9 @@
+misc-no-reinterpret-cast
+========================
+
+This check flags all uses of reinterpret_cast in C++ code.
+
+Use of these casts can violate type safety and cause the program to access a variable that is actually of type X to be accessed as if it were of an unrelated type Z.
+
+This rule is part of the "Type safety" profile of the C++ Core Guidelines, see
+https://github.com/isocpp/CppCoreGuidelines/blob/master/CppCoreGuidelines.md#-type1-dont-use-reinterpret_cast.
Index: test/clang-tidy/misc-no-reinterpret-cast.cpp
===================================================================
--- /dev/null
+++ test/clang-tidy/misc-no-reinterpret-cast.cpp
@@ -0,0 +1,6 @@
+// RUN: %python %S/check_clang_tidy.py %s misc-no-reinterpret-cast %t
+
+int i = 0;
+void* j;
+void f() { j = reinterpret_cast<void*>(i); }
+// CHECK-MESSAGES: :[[@LINE-1]]:16: warning: do not use reinterpret_cast (C++ Core Guidelines, rule Type.1) [misc-no-reinterpret-cast]
\ No newline at end of file