Move sanitizer parser and group expander from Driver to Basic.

No functional change.

Differential Revision: http://reviews.llvm.org/D9621

llvm-svn: 237056
diff --git a/clang/lib/Basic/Sanitizers.cpp b/clang/lib/Basic/Sanitizers.cpp
index e71830a..8c4884b 100644
--- a/clang/lib/Basic/Sanitizers.cpp
+++ b/clang/lib/Basic/Sanitizers.cpp
@@ -11,6 +11,9 @@
 //
 //===----------------------------------------------------------------------===//
 #include "clang/Basic/Sanitizers.h"
+#include "clang/Basic/LLVM.h"
+#include "llvm/ADT/StringRef.h"
+#include "llvm/ADT/StringSwitch.h"
 #include "llvm/Support/MathExtras.h"
 
 using namespace clang;
@@ -34,3 +37,22 @@
 bool SanitizerSet::empty() const {
   return Mask == 0;
 }
+
+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)
+#include "clang/Basic/Sanitizers.def"
+    .Default(0);
+  return ParsedKind;
+}
+
+SanitizerMask clang::expandSanitizerGroups(SanitizerMask Kinds) {
+#define SANITIZER(NAME, ID)
+#define SANITIZER_GROUP(NAME, ID, ALIAS)                                       \
+  if (Kinds & SanitizerKind::ID##Group)                                        \
+    Kinds |= SanitizerKind::ID;
+#include "clang/Basic/Sanitizers.def"
+  return Kinds;
+}