Update clang to r339409.
Change-Id: I800772d2d838223be1f6b40d490c4591b937fca2
diff --git a/linux-x64/clang/include/llvm/Support/VersionTuple.h b/linux-x64/clang/include/llvm/Support/VersionTuple.h
new file mode 100644
index 0000000..e85a188
--- /dev/null
+++ b/linux-x64/clang/include/llvm/Support/VersionTuple.h
@@ -0,0 +1,154 @@
+//===- VersionTuple.h - Version Number Handling -----------------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+///
+/// \file
+/// Defines the llvm::VersionTuple class, which represents a version in
+/// the form major[.minor[.subminor]].
+///
+//===----------------------------------------------------------------------===//
+#ifndef LLVM_SUPPORT_VERSIONTUPLE_H
+#define LLVM_SUPPORT_VERSIONTUPLE_H
+
+#include "llvm/ADT/Optional.h"
+#include "llvm/ADT/StringRef.h"
+#include "llvm/Support/raw_ostream.h"
+#include <string>
+#include <tuple>
+
+namespace llvm {
+
+/// Represents a version number in the form major[.minor[.subminor[.build]]].
+class VersionTuple {
+ unsigned Major : 32;
+
+ unsigned Minor : 31;
+ unsigned HasMinor : 1;
+
+ unsigned Subminor : 31;
+ unsigned HasSubminor : 1;
+
+ unsigned Build : 31;
+ unsigned HasBuild : 1;
+
+public:
+ VersionTuple()
+ : Major(0), Minor(0), HasMinor(false), Subminor(0), HasSubminor(false),
+ Build(0), HasBuild(false) {}
+
+ explicit VersionTuple(unsigned Major)
+ : Major(Major), Minor(0), HasMinor(false), Subminor(0),
+ HasSubminor(false), Build(0), HasBuild(false) {}
+
+ explicit VersionTuple(unsigned Major, unsigned Minor)
+ : Major(Major), Minor(Minor), HasMinor(true), Subminor(0),
+ HasSubminor(false), Build(0), HasBuild(false) {}
+
+ explicit VersionTuple(unsigned Major, unsigned Minor, unsigned Subminor)
+ : Major(Major), Minor(Minor), HasMinor(true), Subminor(Subminor),
+ HasSubminor(true), Build(0), HasBuild(false) {}
+
+ explicit VersionTuple(unsigned Major, unsigned Minor, unsigned Subminor,
+ unsigned Build)
+ : Major(Major), Minor(Minor), HasMinor(true), Subminor(Subminor),
+ HasSubminor(true), Build(Build), HasBuild(true) {}
+
+ /// Determine whether this version information is empty
+ /// (e.g., all version components are zero).
+ bool empty() const {
+ return Major == 0 && Minor == 0 && Subminor == 0 && Build == 0;
+ }
+
+ /// Retrieve the major version number.
+ unsigned getMajor() const { return Major; }
+
+ /// Retrieve the minor version number, if provided.
+ Optional<unsigned> getMinor() const {
+ if (!HasMinor)
+ return None;
+ return Minor;
+ }
+
+ /// Retrieve the subminor version number, if provided.
+ Optional<unsigned> getSubminor() const {
+ if (!HasSubminor)
+ return None;
+ return Subminor;
+ }
+
+ /// Retrieve the build version number, if provided.
+ Optional<unsigned> getBuild() const {
+ if (!HasBuild)
+ return None;
+ return Build;
+ }
+
+ /// Determine if two version numbers are equivalent. If not
+ /// provided, minor and subminor version numbers are considered to be zero.
+ friend bool operator==(const VersionTuple &X, const VersionTuple &Y) {
+ return X.Major == Y.Major && X.Minor == Y.Minor &&
+ X.Subminor == Y.Subminor && X.Build == Y.Build;
+ }
+
+ /// Determine if two version numbers are not equivalent.
+ ///
+ /// If not provided, minor and subminor version numbers are considered to be
+ /// zero.
+ friend bool operator!=(const VersionTuple &X, const VersionTuple &Y) {
+ return !(X == Y);
+ }
+
+ /// Determine whether one version number precedes another.
+ ///
+ /// If not provided, minor and subminor version numbers are considered to be
+ /// zero.
+ friend bool operator<(const VersionTuple &X, const VersionTuple &Y) {
+ return std::tie(X.Major, X.Minor, X.Subminor, X.Build) <
+ std::tie(Y.Major, Y.Minor, Y.Subminor, Y.Build);
+ }
+
+ /// Determine whether one version number follows another.
+ ///
+ /// If not provided, minor and subminor version numbers are considered to be
+ /// zero.
+ friend bool operator>(const VersionTuple &X, const VersionTuple &Y) {
+ return Y < X;
+ }
+
+ /// Determine whether one version number precedes or is
+ /// equivalent to another.
+ ///
+ /// If not provided, minor and subminor version numbers are considered to be
+ /// zero.
+ friend bool operator<=(const VersionTuple &X, const VersionTuple &Y) {
+ return !(Y < X);
+ }
+
+ /// Determine whether one version number follows or is
+ /// equivalent to another.
+ ///
+ /// If not provided, minor and subminor version numbers are considered to be
+ /// zero.
+ friend bool operator>=(const VersionTuple &X, const VersionTuple &Y) {
+ return !(X < Y);
+ }
+
+ /// Retrieve a string representation of the version number.
+ std::string getAsString() const;
+
+ /// Try to parse the given string as a version number.
+ /// \returns \c true if the string does not match the regular expression
+ /// [0-9]+(\.[0-9]+){0,3}
+ bool tryParse(StringRef string);
+};
+
+/// Print a version number.
+raw_ostream &operator<<(raw_ostream &Out, const VersionTuple &V);
+
+} // end namespace llvm
+#endif // LLVM_SUPPORT_VERSIONTUPLE_H