1 files changed, 24 insertions, 6 deletions
diff --git a/lib/Basic/Sanitizers.cpp b/lib/Basic/Sanitizers.cpp
index 8faf17b8f2..f5f81b5fb3 100644
--- a/lib/Basic/Sanitizers.cpp
+++ b/lib/Basic/Sanitizers.cpp
@@ -1,9 +1,8 @@
 //===- Sanitizers.cpp - C Language Family Language Options ----------------===//
 //
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
+// 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
 //
 //===----------------------------------------------------------------------===//
 //
@@ -12,17 +11,26 @@
 //===----------------------------------------------------------------------===//
 
 #include "clang/Basic/Sanitizers.h"
+#include "llvm/ADT/Hashing.h"
 #include "llvm/ADT/StringSwitch.h"
 
 using namespace clang;
 
+// Once LLVM switches to C++17, the constexpr variables can be inline and we
+// won't need this.
+#define SANITIZER(NAME, ID) constexpr SanitizerMask SanitizerKind::ID;
+#define SANITIZER_GROUP(NAME, ID, ALIAS)                                       \
+  constexpr SanitizerMask SanitizerKind::ID;                                   \
+  constexpr SanitizerMask SanitizerKind::ID##Group;
+#include "clang/Basic/Sanitizers.def"
+
 SanitizerMask clang::parseSanitizerValue(StringRef Value, bool AllowGroups) {
   SanitizerMask ParsedKind = llvm::StringSwitch<SanitizerMask>(Value)
 #define SANITIZER(NAME, ID) .Case(NAME, SanitizerKind::ID)
 #define SANITIZER_GROUP(NAME, ID, ALIAS)                                       \
-  .Case(NAME, AllowGroups ? SanitizerKind::ID##Group : 0)
+  .Case(NAME, AllowGroups ? SanitizerKind::ID##Group : SanitizerMask())
 #include "clang/Basic/Sanitizers.def"
-    .Default(0);
+    .Default(SanitizerMask());
   return ParsedKind;
 }
 
@@ -34,3 +42,13 @@ SanitizerMask clang::expandSanitizerGroups(SanitizerMask Kinds) {
 #include "clang/Basic/Sanitizers.def"
   return Kinds;
 }
+
+llvm::hash_code SanitizerMask::hash_value() const {
+  return llvm::hash_combine_range(&maskLoToHigh[0], &maskLoToHigh[kNumElem]);
+}
+
+namespace clang {
+llvm::hash_code hash_value(const clang::SanitizerMask &Arg) {
+  return Arg.hash_value();
+}
+} // namespace clang