[llvm] 5032467 - Use VersionTuple for parsing versions in Triple, fixing issues that caused the original change to be reverted. This makes it possible to distinguish between "16" and "16.0" after parsing, which previously was not possible.

James Farrell via llvm-commits llvm-commits at lists.llvm.org
Mon Dec 6 06:58:04 PST 2021


Author: James Farrell
Date: 2021-12-06T14:57:47Z
New Revision: 50324670342d9391f62671685f4d6b4880a4ea9a

URL: https://github.com/llvm/llvm-project/commit/50324670342d9391f62671685f4d6b4880a4ea9a
DIFF: https://github.com/llvm/llvm-project/commit/50324670342d9391f62671685f4d6b4880a4ea9a.diff

LOG: Use VersionTuple for parsing versions in Triple, fixing issues that caused the original change to be reverted. This makes it possible to distinguish between "16" and "16.0" after parsing, which previously was not possible.

This reverts commit 40d5eeac6cd89a2360c3ba997cbaa816abca828c.

Differential Revision: https://reviews.llvm.org/D114885

Added: 
    

Modified: 
    clang/lib/ARCMigrate/ARCMT.cpp
    clang/lib/Basic/Targets/OSTargets.cpp
    clang/lib/Basic/Targets/OSTargets.h
    clang/lib/Basic/Targets/X86.h
    clang/lib/Driver/ToolChains/Darwin.cpp
    clang/lib/Driver/ToolChains/Linux.cpp
    clang/lib/Driver/ToolChains/MSVC.cpp
    clang/lib/Driver/ToolChains/NetBSD.cpp
    clang/test/Sema/attr-availability-android.c
    clang/test/Sema/attr-availability.c
    clang/test/Sema/availability-guard-format.mm
    clang/test/SemaObjC/attr-availability.m
    clang/test/SemaObjC/property-deprecated-warning.m
    clang/test/SemaObjC/unguarded-availability-maccatalyst.m
    clang/test/SemaObjC/unguarded-availability.m
    llvm/include/llvm/ADT/Triple.h
    llvm/lib/Analysis/TargetLibraryInfo.cpp
    llvm/lib/MC/MCStreamer.cpp
    llvm/lib/Support/Triple.cpp
    llvm/lib/Target/AArch64/AArch64Subtarget.cpp
    llvm/lib/Target/AArch64/AArch64Subtarget.h
    llvm/lib/Target/X86/X86Subtarget.h
    llvm/unittests/ADT/TripleTest.cpp
    llvm/unittests/Support/Host.cpp

Removed: 
    


################################################################################
diff  --git a/clang/lib/ARCMigrate/ARCMT.cpp b/clang/lib/ARCMigrate/ARCMT.cpp
index 4851c434d7652..68ee7c59270e0 100644
--- a/clang/lib/ARCMigrate/ARCMT.cpp
+++ b/clang/lib/ARCMigrate/ARCMT.cpp
@@ -162,9 +162,7 @@ static bool HasARCRuntime(CompilerInvocation &origCI) {
     return triple.getOSMajorVersion() >= 11;
 
   if (triple.getOS() == llvm::Triple::MacOSX) {
-    unsigned Major, Minor, Micro;
-    triple.getOSVersion(Major, Minor, Micro);
-    return Major > 10 || (Major == 10 && Minor >= 7);
+    return triple.getOSVersion() >= VersionTuple(10, 7);
   }
 
   return false;

diff  --git a/clang/lib/Basic/Targets/OSTargets.cpp b/clang/lib/Basic/Targets/OSTargets.cpp
index 53748bf067cd2..695cbafe36557 100644
--- a/clang/lib/Basic/Targets/OSTargets.cpp
+++ b/clang/lib/Basic/Targets/OSTargets.cpp
@@ -48,12 +48,12 @@ void getDarwinDefines(MacroBuilder &Builder, const LangOptions &Opts,
     Builder.defineMacro("_REENTRANT");
 
   // Get the platform type and version number from the triple.
-  unsigned Maj, Min, Rev;
+  VersionTuple OsVersion;
   if (Triple.isMacOSX()) {
-    Triple.getMacOSXVersion(Maj, Min, Rev);
+    Triple.getMacOSXVersion(OsVersion);
     PlatformName = "macos";
   } else {
-    Triple.getOSVersion(Maj, Min, Rev);
+    OsVersion = Triple.getOSVersion();
     PlatformName = llvm::Triple::getOSTypeName(Triple.getOS());
     if (PlatformName == "ios" && Triple.isMacCatalystEnvironment())
       PlatformName = "maccatalyst";
@@ -63,29 +63,29 @@ void getDarwinDefines(MacroBuilder &Builder, const LangOptions &Opts,
   // generating code for Win32 ABI. No need to emit
   // __ENVIRONMENT_XX_OS_VERSION_MIN_REQUIRED__.
   if (PlatformName == "win32") {
-    PlatformMinVersion = VersionTuple(Maj, Min, Rev);
+    PlatformMinVersion = OsVersion;
     return;
   }
 
   // Set the appropriate OS version define.
   if (Triple.isiOS()) {
-    assert(Maj < 100 && Min < 100 && Rev < 100 && "Invalid version!");
+    assert(OsVersion < VersionTuple(100) && "Invalid version!");
     char Str[7];
-    if (Maj < 10) {
-      Str[0] = '0' + Maj;
-      Str[1] = '0' + (Min / 10);
-      Str[2] = '0' + (Min % 10);
-      Str[3] = '0' + (Rev / 10);
-      Str[4] = '0' + (Rev % 10);
+    if (OsVersion.getMajor() < 10) {
+      Str[0] = '0' + OsVersion.getMajor();
+      Str[1] = '0' + (OsVersion.getMinor().getValueOr(0) / 10);
+      Str[2] = '0' + (OsVersion.getMinor().getValueOr(0) % 10);
+      Str[3] = '0' + (OsVersion.getSubminor().getValueOr(0) / 10);
+      Str[4] = '0' + (OsVersion.getSubminor().getValueOr(0) % 10);
       Str[5] = '\0';
     } else {
       // Handle versions >= 10.
-      Str[0] = '0' + (Maj / 10);
-      Str[1] = '0' + (Maj % 10);
-      Str[2] = '0' + (Min / 10);
-      Str[3] = '0' + (Min % 10);
-      Str[4] = '0' + (Rev / 10);
-      Str[5] = '0' + (Rev % 10);
+      Str[0] = '0' + (OsVersion.getMajor() / 10);
+      Str[1] = '0' + (OsVersion.getMajor() % 10);
+      Str[2] = '0' + (OsVersion.getMinor().getValueOr(0) / 10);
+      Str[3] = '0' + (OsVersion.getMinor().getValueOr(0) % 10);
+      Str[4] = '0' + (OsVersion.getSubminor().getValueOr(0) / 10);
+      Str[5] = '0' + (OsVersion.getSubminor().getValueOr(0) % 10);
       Str[6] = '\0';
     }
     if (Triple.isTvOS())
@@ -95,13 +95,13 @@ void getDarwinDefines(MacroBuilder &Builder, const LangOptions &Opts,
                           Str);
 
   } else if (Triple.isWatchOS()) {
-    assert(Maj < 10 && Min < 100 && Rev < 100 && "Invalid version!");
+    assert(OsVersion < VersionTuple(10) && "Invalid version!");
     char Str[6];
-    Str[0] = '0' + Maj;
-    Str[1] = '0' + (Min / 10);
-    Str[2] = '0' + (Min % 10);
-    Str[3] = '0' + (Rev / 10);
-    Str[4] = '0' + (Rev % 10);
+    Str[0] = '0' + OsVersion.getMajor();
+    Str[1] = '0' + (OsVersion.getMinor().getValueOr(0) / 10);
+    Str[2] = '0' + (OsVersion.getMinor().getValueOr(0) % 10);
+    Str[3] = '0' + (OsVersion.getSubminor().getValueOr(0) / 10);
+    Str[4] = '0' + (OsVersion.getSubminor().getValueOr(0) % 10);
     Str[5] = '\0';
     Builder.defineMacro("__ENVIRONMENT_WATCH_OS_VERSION_MIN_REQUIRED__", Str);
   } else if (Triple.isMacOSX()) {
@@ -109,22 +109,22 @@ void getDarwinDefines(MacroBuilder &Builder, const LangOptions &Opts,
     // define (because we only get a single digit for the minor and micro
     // revision numbers). So, we limit them to the maximum representable
     // version.
-    assert(Maj < 100 && Min < 100 && Rev < 100 && "Invalid version!");
+    assert(OsVersion < VersionTuple(100) && "Invalid version!");
     char Str[7];
-    if (Maj < 10 || (Maj == 10 && Min < 10)) {
-      Str[0] = '0' + (Maj / 10);
-      Str[1] = '0' + (Maj % 10);
-      Str[2] = '0' + std::min(Min, 9U);
-      Str[3] = '0' + std::min(Rev, 9U);
+    if (OsVersion < VersionTuple(10, 10)) {
+      Str[0] = '0' + (OsVersion.getMajor() / 10);
+      Str[1] = '0' + (OsVersion.getMajor() % 10);
+      Str[2] = '0' + std::min(OsVersion.getMinor().getValueOr(0), 9U);
+      Str[3] = '0' + std::min(OsVersion.getSubminor().getValueOr(0), 9U);
       Str[4] = '\0';
     } else {
       // Handle versions > 10.9.
-      Str[0] = '0' + (Maj / 10);
-      Str[1] = '0' + (Maj % 10);
-      Str[2] = '0' + (Min / 10);
-      Str[3] = '0' + (Min % 10);
-      Str[4] = '0' + (Rev / 10);
-      Str[5] = '0' + (Rev % 10);
+      Str[0] = '0' + (OsVersion.getMajor() / 10);
+      Str[1] = '0' + (OsVersion.getMajor() % 10);
+      Str[2] = '0' + (OsVersion.getMinor().getValueOr(0) / 10);
+      Str[3] = '0' + (OsVersion.getMinor().getValueOr(0) % 10);
+      Str[4] = '0' + (OsVersion.getSubminor().getValueOr(0) / 10);
+      Str[5] = '0' + (OsVersion.getSubminor().getValueOr(0) % 10);
       Str[6] = '\0';
     }
     Builder.defineMacro("__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__", Str);
@@ -134,7 +134,7 @@ void getDarwinDefines(MacroBuilder &Builder, const LangOptions &Opts,
   if (Triple.isOSDarwin())
     Builder.defineMacro("__MACH__");
 
-  PlatformMinVersion = VersionTuple(Maj, Min, Rev);
+  PlatformMinVersion = OsVersion;
 }
 
 static void addMinGWDefines(const llvm::Triple &Triple, const LangOptions &Opts,

diff  --git a/clang/lib/Basic/Targets/OSTargets.h b/clang/lib/Basic/Targets/OSTargets.h
index 7fbe2cbc56538..3c1830d5f8e89 100644
--- a/clang/lib/Basic/Targets/OSTargets.h
+++ b/clang/lib/Basic/Targets/OSTargets.h
@@ -148,9 +148,7 @@ class LLVM_LIBRARY_VISIBILITY DarwinTargetInfo : public OSTargetInfo<Target> {
       return 64;
     }
 
-    unsigned Major, Minor, Micro;
-    T.getOSVersion(Major, Minor, Micro);
-    if (llvm::VersionTuple(Major, Minor, Micro) < MinVersion)
+    if (T.getOSVersion() < MinVersion)
       return 64;
     return OSTargetInfo<Target>::getExnObjectAlignment();
   }
@@ -294,7 +292,7 @@ class LLVM_LIBRARY_VISIBILITY HaikuTargetInfo : public OSTargetInfo<Target> {
     Builder.defineMacro("__HAIKU__");
     Builder.defineMacro("__ELF__");
     DefineStd(Builder, "unix", Opts);
-    if (this->HasFloat128) 
+    if (this->HasFloat128)
       Builder.defineMacro("__FLOAT128__");
   }
 
@@ -376,10 +374,9 @@ class LLVM_LIBRARY_VISIBILITY LinuxTargetInfo : public OSTargetInfo<Target> {
     Builder.defineMacro("__ELF__");
     if (Triple.isAndroid()) {
       Builder.defineMacro("__ANDROID__", "1");
-      unsigned Maj, Min, Rev;
-      Triple.getEnvironmentVersion(Maj, Min, Rev);
       this->PlatformName = "android";
-      this->PlatformMinVersion = VersionTuple(Maj, Min, Rev);
+      this->PlatformMinVersion = Triple.getEnvironmentVersion();
+      const unsigned Maj = this->PlatformMinVersion.getMajor();
       if (Maj) {
         Builder.defineMacro("__ANDROID_MIN_SDK_VERSION__", Twine(Maj));
         // This historical but ambiguous name for the minSdkVersion macro. Keep
@@ -693,23 +690,32 @@ class AIXTargetInfo : public OSTargetInfo<Target> {
     if (Opts.EnableAIXExtendedAltivecABI)
       Builder.defineMacro("__EXTABI__");
 
-    unsigned Major, Minor, Micro;
-    Triple.getOSVersion(Major, Minor, Micro);
+    VersionTuple OsVersion = Triple.getOSVersion();
 
     // Define AIX OS-Version Macros.
     // Includes logic for legacy versions of AIX; no specific intent to support.
-    std::pair<int, int> OsVersion = {Major, Minor};
-    if (OsVersion >= std::make_pair(3, 2)) Builder.defineMacro("_AIX32");
-    if (OsVersion >= std::make_pair(4, 1)) Builder.defineMacro("_AIX41");
-    if (OsVersion >= std::make_pair(4, 3)) Builder.defineMacro("_AIX43");
-    if (OsVersion >= std::make_pair(5, 0)) Builder.defineMacro("_AIX50");
-    if (OsVersion >= std::make_pair(5, 1)) Builder.defineMacro("_AIX51");
-    if (OsVersion >= std::make_pair(5, 2)) Builder.defineMacro("_AIX52");
-    if (OsVersion >= std::make_pair(5, 3)) Builder.defineMacro("_AIX53");
-    if (OsVersion >= std::make_pair(6, 1)) Builder.defineMacro("_AIX61");
-    if (OsVersion >= std::make_pair(7, 1)) Builder.defineMacro("_AIX71");
-    if (OsVersion >= std::make_pair(7, 2)) Builder.defineMacro("_AIX72");
-    if (OsVersion >= std::make_pair(7, 3)) Builder.defineMacro("_AIX73");
+    if (OsVersion >= VersionTuple(3, 2))
+      Builder.defineMacro("_AIX32");
+    if (OsVersion >= VersionTuple(4, 1))
+      Builder.defineMacro("_AIX41");
+    if (OsVersion >= VersionTuple(4, 3))
+      Builder.defineMacro("_AIX43");
+    if (OsVersion >= VersionTuple(5, 0))
+      Builder.defineMacro("_AIX50");
+    if (OsVersion >= VersionTuple(5, 1))
+      Builder.defineMacro("_AIX51");
+    if (OsVersion >= VersionTuple(5, 2))
+      Builder.defineMacro("_AIX52");
+    if (OsVersion >= VersionTuple(5, 3))
+      Builder.defineMacro("_AIX53");
+    if (OsVersion >= VersionTuple(6, 1))
+      Builder.defineMacro("_AIX61");
+    if (OsVersion >= VersionTuple(7, 1))
+      Builder.defineMacro("_AIX71");
+    if (OsVersion >= VersionTuple(7, 2))
+      Builder.defineMacro("_AIX72");
+    if (OsVersion >= VersionTuple(7, 3))
+      Builder.defineMacro("_AIX73");
 
     // FIXME: Do not define _LONG_LONG when -fno-long-long is specified.
     Builder.defineMacro("_LONG_LONG");

diff  --git a/clang/lib/Basic/Targets/X86.h b/clang/lib/Basic/Targets/X86.h
index b9b2ac79815b0..8626e44ce6e59 100644
--- a/clang/lib/Basic/Targets/X86.h
+++ b/clang/lib/Basic/Targets/X86.h
@@ -472,10 +472,9 @@ class LLVM_LIBRARY_VISIBILITY NetBSDI386TargetInfo
       : NetBSDTargetInfo<X86_32TargetInfo>(Triple, Opts) {}
 
   unsigned getFloatEvalMethod() const override {
-    unsigned Major, Minor, Micro;
-    getTriple().getOSVersion(Major, Minor, Micro);
+    VersionTuple OsVersion = getTriple().getOSVersion();
     // New NetBSD uses the default rounding mode.
-    if (Major >= 7 || (Major == 6 && Minor == 99 && Micro >= 26) || Major == 0)
+    if (OsVersion >= VersionTuple(6, 99, 26) || OsVersion.getMajor() == 0)
       return X86_32TargetInfo::getFloatEvalMethod();
     // NetBSD before 6.99.26 defaults to "double" rounding.
     return 1;

diff  --git a/clang/lib/Driver/ToolChains/Darwin.cpp b/clang/lib/Driver/ToolChains/Darwin.cpp
index 89d8fbe795e6e..f7da3f187814f 100644
--- a/clang/lib/Driver/ToolChains/Darwin.cpp
+++ b/clang/lib/Driver/ToolChains/Darwin.cpp
@@ -1410,8 +1410,8 @@ static std::string getSystemOrSDKMacOSVersion(StringRef MacOSSDKVersion) {
   llvm::Triple SystemTriple(llvm::sys::getProcessTriple());
   if (!SystemTriple.isMacOSX())
     return std::string(MacOSSDKVersion);
-  SystemTriple.getMacOSXVersion(Major, Minor, Micro);
-  VersionTuple SystemVersion(Major, Minor, Micro);
+  VersionTuple SystemVersion;
+  SystemTriple.getMacOSXVersion(SystemVersion);
   bool HadExtra;
   if (!Driver::GetReleaseVersion(MacOSSDKVersion, Major, Minor, Micro,
                                  HadExtra))
@@ -1552,12 +1552,10 @@ struct DarwinPlatform {
                    const Optional<DarwinSDKInfo> &SDKInfo) {
     DarwinPlatform Result(TargetArg, getPlatformFromOS(TT.getOS()), OSVersion,
                           A);
-    unsigned Major, Minor, Micro;
-    TT.getOSVersion(Major, Minor, Micro);
-    if (Major == 0)
+    VersionTuple OsVersion = TT.getOSVersion();
+    if (OsVersion.getMajor() == 0)
       Result.HasOSVersion = false;
-    Result.setEnvironment(TT.getEnvironment(),
-                          VersionTuple(Major, Minor, Micro), SDKInfo);
+    Result.setEnvironment(TT.getEnvironment(), OsVersion, SDKInfo);
     return Result;
   }
   static DarwinPlatform
@@ -1803,7 +1801,7 @@ inferDeploymentTargetFromSDK(DerivedArgList &Args,
 
 std::string getOSVersion(llvm::Triple::OSType OS, const llvm::Triple &Triple,
                          const Driver &TheDriver) {
-  unsigned Major, Minor, Micro;
+  VersionTuple OsVersion;
   llvm::Triple SystemTriple(llvm::sys::getProcessTriple());
   switch (OS) {
   case llvm::Triple::Darwin:
@@ -1812,24 +1810,22 @@ std::string getOSVersion(llvm::Triple::OSType OS, const llvm::Triple &Triple,
     // macos, use the host triple to infer OS version.
     if (Triple.isMacOSX() && SystemTriple.isMacOSX() &&
         !Triple.getOSMajorVersion())
-      SystemTriple.getMacOSXVersion(Major, Minor, Micro);
-    else if (!Triple.getMacOSXVersion(Major, Minor, Micro))
+      SystemTriple.getMacOSXVersion(OsVersion);
+    else if (!Triple.getMacOSXVersion(OsVersion))
       TheDriver.Diag(diag::err_drv_invalid_darwin_version)
           << Triple.getOSName();
     break;
   case llvm::Triple::IOS:
     if (Triple.isMacCatalystEnvironment() && !Triple.getOSMajorVersion()) {
-      Major = 13;
-      Minor = 1;
-      Micro = 0;
+      OsVersion = VersionTuple(13, 1);
     } else
-      Triple.getiOSVersion(Major, Minor, Micro);
+      OsVersion = Triple.getiOSVersion();
     break;
   case llvm::Triple::TvOS:
-    Triple.getOSVersion(Major, Minor, Micro);
+    OsVersion = Triple.getOSVersion();
     break;
   case llvm::Triple::WatchOS:
-    Triple.getWatchOSVersion(Major, Minor, Micro);
+    OsVersion = Triple.getWatchOSVersion();
     break;
   default:
     llvm_unreachable("Unexpected OS type");
@@ -1837,7 +1833,9 @@ std::string getOSVersion(llvm::Triple::OSType OS, const llvm::Triple &Triple,
   }
 
   std::string OSVersion;
-  llvm::raw_string_ostream(OSVersion) << Major << '.' << Minor << '.' << Micro;
+  llvm::raw_string_ostream(OSVersion)
+      << OsVersion.getMajor() << '.' << OsVersion.getMinor().getValueOr(0)
+      << '.' << OsVersion.getSubminor().getValueOr(0);
   return OSVersion;
 }
 
@@ -1907,15 +1905,13 @@ getDeploymentTargetFromMTargetOSArg(DerivedArgList &Args,
     return None;
   }
 
-  unsigned Major, Minor, Micro;
-  TT.getOSVersion(Major, Minor, Micro);
-  if (!Major) {
+  VersionTuple Version = TT.getOSVersion();
+  if (!Version.getMajor()) {
     TheDriver.Diag(diag::err_drv_invalid_version_number)
         << A->getAsString(Args);
     return None;
   }
-  return DarwinPlatform::createFromMTargetOS(TT.getOS(),
-                                             VersionTuple(Major, Minor, Micro),
+  return DarwinPlatform::createFromMTargetOS(TT.getOS(), Version,
                                              TT.getEnvironment(), A, SDKInfo);
 }
 

diff  --git a/clang/lib/Driver/ToolChains/Linux.cpp b/clang/lib/Driver/ToolChains/Linux.cpp
index 198774506e5e5..7494c2129211e 100644
--- a/clang/lib/Driver/ToolChains/Linux.cpp
+++ b/clang/lib/Driver/ToolChains/Linux.cpp
@@ -277,14 +277,11 @@ Linux::Linux(const Driver &D, const llvm::Triple &Triple, const ArgList &Args)
     // Android sysroots contain a library directory for each supported OS
     // version as well as some unversioned libraries in the usual multiarch
     // directory.
-    unsigned Major;
-    unsigned Minor;
-    unsigned Micro;
-    Triple.getEnvironmentVersion(Major, Minor, Micro);
-    addPathIfExists(D,
-                    SysRoot + "/usr/lib/" + MultiarchTriple + "/" +
-                        llvm::to_string(Major),
-                    Paths);
+    addPathIfExists(
+        D,
+        SysRoot + "/usr/lib/" + MultiarchTriple + "/" +
+            llvm::to_string(Triple.getEnvironmentVersion().getMajor()),
+        Paths);
   }
 
   addPathIfExists(D, SysRoot + "/usr/lib/" + MultiarchTriple, Paths);

diff  --git a/clang/lib/Driver/ToolChains/MSVC.cpp b/clang/lib/Driver/ToolChains/MSVC.cpp
index 792b0a51fea09..66e9d8ab525ac 100644
--- a/clang/lib/Driver/ToolChains/MSVC.cpp
+++ b/clang/lib/Driver/ToolChains/MSVC.cpp
@@ -1194,14 +1194,6 @@ bool MSVCToolChain::getUniversalCRTLibraryPath(const ArgList &Args,
   return true;
 }
 
-static VersionTuple getMSVCVersionFromTriple(const llvm::Triple &Triple) {
-  unsigned Major, Minor, Micro;
-  Triple.getEnvironmentVersion(Major, Minor, Micro);
-  if (Major || Minor || Micro)
-    return VersionTuple(Major, Minor, Micro);
-  return VersionTuple();
-}
-
 static VersionTuple getMSVCVersionFromExe(const std::string &BinDir) {
   VersionTuple Version;
 #ifdef _WIN32
@@ -1374,7 +1366,7 @@ VersionTuple MSVCToolChain::computeMSVCVersion(const Driver *D,
   bool IsWindowsMSVC = getTriple().isWindowsMSVCEnvironment();
   VersionTuple MSVT = ToolChain::computeMSVCVersion(D, Args);
   if (MSVT.empty())
-    MSVT = getMSVCVersionFromTriple(getTriple());
+    MSVT = getTriple().getEnvironmentVersion();
   if (MSVT.empty() && IsWindowsMSVC)
     MSVT = getMSVCVersionFromExe(getSubDirectoryPath(SubDirectoryType::Bin));
   if (MSVT.empty() &&

diff  --git a/clang/lib/Driver/ToolChains/NetBSD.cpp b/clang/lib/Driver/ToolChains/NetBSD.cpp
index 7571398b7cc61..37b1fc5215ff5 100644
--- a/clang/lib/Driver/ToolChains/NetBSD.cpp
+++ b/clang/lib/Driver/ToolChains/NetBSD.cpp
@@ -270,10 +270,9 @@ void netbsd::Linker::ConstructJob(Compilation &C, const JobAction &JA,
     CmdArgs.push_back(Args.MakeArgString(ToolChain.getCompilerRTPath()));
   }
 
-  unsigned Major, Minor, Micro;
-  Triple.getOSVersion(Major, Minor, Micro);
+  VersionTuple OsVersion = Triple.getOSVersion();
   bool useLibgcc = true;
-  if (Major >= 7 || Major == 0) {
+  if (OsVersion >= VersionTuple(7) || OsVersion.getMajor() == 0) {
     switch (ToolChain.getArch()) {
     case llvm::Triple::aarch64:
     case llvm::Triple::aarch64_be:
@@ -409,9 +408,8 @@ Tool *NetBSD::buildAssembler() const {
 Tool *NetBSD::buildLinker() const { return new tools::netbsd::Linker(*this); }
 
 ToolChain::CXXStdlibType NetBSD::GetDefaultCXXStdlibType() const {
-  unsigned Major, Minor, Micro;
-  getTriple().getOSVersion(Major, Minor, Micro);
-  if (Major >= 7 || Major == 0) {
+  VersionTuple OsVersion = getTriple().getOSVersion();
+  if (OsVersion >= VersionTuple(7) || OsVersion.getMajor() == 0) {
     switch (getArch()) {
     case llvm::Triple::aarch64:
     case llvm::Triple::aarch64_be:
@@ -505,14 +503,13 @@ void NetBSD::addClangTargetOptions(const ArgList &DriverArgs,
   if (SanArgs.hasAnySanitizer())
     CC1Args.push_back("-D_REENTRANT");
 
-  unsigned Major, Minor, Micro;
-  getTriple().getOSVersion(Major, Minor, Micro);
+  VersionTuple OsVersion = getTriple().getOSVersion();
   bool UseInitArrayDefault =
-    Major >= 9 || Major == 0 ||
-    getTriple().getArch() == llvm::Triple::aarch64 ||
-    getTriple().getArch() == llvm::Triple::aarch64_be ||
-    getTriple().getArch() == llvm::Triple::arm ||
-    getTriple().getArch() == llvm::Triple::armeb;
+      OsVersion >= VersionTuple(9) || OsVersion.getMajor() == 0 ||
+      getTriple().getArch() == llvm::Triple::aarch64 ||
+      getTriple().getArch() == llvm::Triple::aarch64_be ||
+      getTriple().getArch() == llvm::Triple::arm ||
+      getTriple().getArch() == llvm::Triple::armeb;
 
   if (!DriverArgs.hasFlag(options::OPT_fuse_init_array,
                           options::OPT_fno_use_init_array, UseInitArrayDefault))

diff  --git a/clang/test/Sema/attr-availability-android.c b/clang/test/Sema/attr-availability-android.c
index f38f71fbc7834..39638bc38c4a7 100644
--- a/clang/test/Sema/attr-availability-android.c
+++ b/clang/test/Sema/attr-availability-android.c
@@ -5,7 +5,7 @@ void f0(int) __attribute__((availability(android,introduced=14,deprecated=19)));
 void f1(int) __attribute__((availability(android,introduced=16)));
 void f2(int) __attribute__((availability(android,introduced=14,deprecated=16))); // expected-note {{'f2' has been explicitly marked deprecated here}}
 #ifdef WARN_PARTIAL
-// expected-note-re at +2 {{'f3' has been marked as being introduced in Android 19 here, but the deployment target is Android 16.0.0{{$}}}}
+// expected-note-re at +2 {{'f3' has been marked as being introduced in Android 19 here, but the deployment target is Android 16{{$}}}}
 #endif
 void f3(int) __attribute__((availability(android,introduced=19)));
 void f4(int) __attribute__((availability(android,introduced=9,deprecated=11,obsoleted=16), availability(ios,introduced=2.0,deprecated=3.0))); // expected-note{{explicitly marked unavailable}}

diff  --git a/clang/test/Sema/attr-availability.c b/clang/test/Sema/attr-availability.c
index dbdf6593c3f7e..b34d3d6b531b1 100644
--- a/clang/test/Sema/attr-availability.c
+++ b/clang/test/Sema/attr-availability.c
@@ -1,6 +1,6 @@
 // RUN: %clang_cc1 -triple x86_64-apple-darwin9 -fsyntax-only -fblocks -verify %s
 // RUN: %clang_cc1 -D WARN_PARTIAL -Wpartial-availability -triple x86_64-apple-darwin9 -fsyntax-only -fblocks -verify %s
-// 
+//
 
 void f0() __attribute__((availability(macosx,introduced=10.4,deprecated=10.2))); // expected-warning{{feature cannot be deprecated in macOS version 10.2 before it was introduced in version 10.4; attribute ignored}}
 void f1() __attribute__((availability(ios,obsoleted=2.1,deprecated=3.0)));  // expected-warning{{feature cannot be obsoleted in iOS version 2.1 before it was deprecated in version 3.0; attribute ignored}}
@@ -9,20 +9,20 @@ void f2() __attribute__((availability(ios,introduced=2.1,deprecated=2.1)));
 void f3() __attribute__((availability(otheros,introduced=2.2))); // expected-warning{{unknown platform 'otheros' in availability macro}}
 
 // rdar://10095131
-extern void 
+extern void
 ATSFontGetName(const char *oName) __attribute__((availability(macosx,introduced=8.0,deprecated=9.0, message="use CTFontCopyFullName"))); // expected-note {{'ATSFontGetName' has been explicitly marked deprecated here}}
 
 extern void
 ATSFontGetPostScriptName(int flags) __attribute__((availability(macosx,introduced=8.0,obsoleted=9.0, message="use ATSFontGetFullPostScriptName"))); // expected-note {{'ATSFontGetPostScriptName' has been explicitly marked unavailable here}}
 
 #if defined(WARN_PARTIAL)
-// expected-note at +3 {{'PartiallyAvailable' has been marked as being introduced in macOS 10.8 here, but the deployment target is macOS 10.5.0}}
+// expected-note at +3 {{'PartiallyAvailable' has been marked as being introduced in macOS 10.8 here, but the deployment target is macOS 10.5}}
 #endif
 extern void
 PartiallyAvailable() __attribute__((availability(macosx,introduced=10.8)));
 
 #ifdef WARN_PARTIAL
-// expected-note at +2 2 {{'PartialEnum' has been marked as being introduced in macOS 10.8 here, but the deployment target is macOS 10.5.0}}
+// expected-note at +2 2 {{'PartialEnum' has been marked as being introduced in macOS 10.8 here, but the deployment target is macOS 10.5}}
 #endif
 enum __attribute__((availability(macosx,introduced=10.8))) PartialEnum {
   kPartialEnumConstant,
@@ -41,7 +41,7 @@ void test_10095131() {
 #ifdef WARN_PARTIAL
 // FIXME: This note should point to the declaration with the availability
 // attribute.
-// expected-note at +2 {{'PartiallyAvailable' has been marked as being introduced in macOS 10.8 here, but the deployment target is macOS 10.5.0}}
+// expected-note at +2 {{'PartiallyAvailable' has been marked as being introduced in macOS 10.8 here, but the deployment target is macOS 10.5}}
 #endif
 extern void PartiallyAvailable() ;
 void with_redeclaration() {

diff  --git a/clang/test/Sema/availability-guard-format.mm b/clang/test/Sema/availability-guard-format.mm
index 0e158c4173c2c..e5967d1082b9b 100644
--- a/clang/test/Sema/availability-guard-format.mm
+++ b/clang/test/Sema/availability-guard-format.mm
@@ -3,7 +3,7 @@
 // Testing that even for source code using '_' as a delimiter in availability version tuple '.' is actually used in diagnostic output as a delimiter.
 
 @interface foo
-- (void) method_bar __attribute__((availability(macosx, introduced = 10_12))); // expected-note {{'method_bar' has been marked as being introduced in macOS 10.12 here, but the deployment target is macOS 10.11.0}}
+- (void) method_bar __attribute__((availability(macosx, introduced = 10_12))); // expected-note {{'method_bar' has been marked as being introduced in macOS 10.12 here, but the deployment target is macOS 10.11}}
 @end
 
 int main() {

diff  --git a/clang/test/SemaObjC/attr-availability.m b/clang/test/SemaObjC/attr-availability.m
index cb896150574ee..e3f7a38f5889b 100644
--- a/clang/test/SemaObjC/attr-availability.m
+++ b/clang/test/SemaObjC/attr-availability.m
@@ -5,7 +5,7 @@ @protocol P
 - (void)proto_method __attribute__((availability(macosx,introduced=10.1,deprecated=10.2))); // expected-note 2 {{'proto_method' has been explicitly marked deprecated here}}
 
 #if defined(WARN_PARTIAL)
-// expected-note at +2 2 {{'partial_proto_method' has been marked as being introduced in macOS 10.8 here, but the deployment target is macOS 10.5.0}}
+// expected-note at +2 2 {{'partial_proto_method' has been marked as being introduced in macOS 10.8 here, but the deployment target is macOS 10.5}}
 #endif
 - (void)partial_proto_method __attribute__((availability(macosx,introduced=10.8)));
 @end
@@ -13,7 +13,7 @@ - (void)partial_proto_method __attribute__((availability(macosx,introduced=10.8)
 @interface A <P>
 - (void)method __attribute__((availability(macosx,introduced=10.1,deprecated=10.2))); // expected-note {{'method' has been explicitly marked deprecated here}}
 #if defined(WARN_PARTIAL)
-// expected-note at +2 2 {{'partialMethod' has been marked as being introduced in macOS 10.8 here, but the deployment target is macOS 10.5.0}}
+// expected-note at +2 2 {{'partialMethod' has been marked as being introduced in macOS 10.8 here, but the deployment target is macOS 10.5}}
 #endif
 - (void)partialMethod __attribute__((availability(macosx,introduced=10.8)));
 
@@ -137,8 +137,8 @@ + (void)ppartialMethod __attribute__((availability(macosx,introduced=10.8)));
 
 @interface PartialI <PartialProt>
 #ifdef WARN_PARTIAL
-// expected-note at +3{{'partialMethod' has been marked as being introduced in macOS 10.8 here, but the deployment target is macOS 10.5.0}}
-// expected-note at +3{{'partialMethod' has been marked as being introduced in macOS 10.8 here, but the deployment target is macOS 10.5.0}}
+// expected-note at +3{{'partialMethod' has been marked as being introduced in macOS 10.8 here, but the deployment target is macOS 10.5}}
+// expected-note at +3{{'partialMethod' has been marked as being introduced in macOS 10.8 here, but the deployment target is macOS 10.5}}
 #endif
 - (void)partialMethod __attribute__((availability(macosx,introduced=10.8)));
 + (void)partialMethod __attribute__((availability(macosx,introduced=10.8)));
@@ -147,12 +147,12 @@ + (void)partialMethod __attribute__((availability(macosx,introduced=10.8)));
 @interface PartialI ()
 - (void)ipartialMethod1 __attribute__((availability(macosx,introduced=10.8)));
 #if defined(WARN_PARTIAL)
-// expected-note at +2 {{'ipartialMethod2' has been marked as being introduced in macOS 10.8 here, but the deployment target is macOS 10.5.0}}
+// expected-note at +2 {{'ipartialMethod2' has been marked as being introduced in macOS 10.8 here, but the deployment target is macOS 10.5}}
 #endif
 - (void)ipartialMethod2 __attribute__((availability(macosx,introduced=10.8)));
 + (void)ipartialMethod1 __attribute__((availability(macosx,introduced=10.8)));
 #if defined(WARN_PARTIAL)
-// expected-note at +2 {{'ipartialMethod2' has been marked as being introduced in macOS 10.8 here, but the deployment target is macOS 10.5.0}}
+// expected-note at +2 {{'ipartialMethod2' has been marked as being introduced in macOS 10.8 here, but the deployment target is macOS 10.5}}
 #endif
 + (void)ipartialMethod2 __attribute__((availability(macosx,introduced=10.8)));
 @end
@@ -190,7 +190,7 @@ void partialfun(PartialI* a) {
 }
 
 #if defined(WARN_PARTIAL)
-// expected-note at +2 2 {{'PartialI2' has been marked as being introduced in macOS 10.8 here, but the deployment target is macOS 10.5.0}}
+// expected-note at +2 2 {{'PartialI2' has been marked as being introduced in macOS 10.8 here, but the deployment target is macOS 10.5}}
 #endif
 __attribute__((availability(macosx, introduced = 10.8))) @interface PartialI2
 @end
@@ -222,7 +222,7 @@ void partialinter2(PartialI2* p) {
 void use_myEnum() {
   // expected-error at +2 {{'MyEnum' is unavailable: not available}}
   // expected-error at +1 {{MyEnum_Blah' is unavailable: not available}}
-  MyEnum e = MyEnum_Blah; 
+  MyEnum e = MyEnum_Blah;
 }
 
 // Test that the availability of (optional) protocol methods is not
@@ -313,8 +313,8 @@ -(void)method {
 #if defined(WARN_PARTIAL)
 
 int fn_10_5() __attribute__((availability(macosx, introduced=10.5)));
-int fn_10_7() __attribute__((availability(macosx, introduced=10.7))); // expected-note{{'fn_10_7' has been marked as being introduced in macOS 10.7 here, but the deployment target is macOS 10.5.0}}
-int fn_10_8() __attribute__((availability(macosx, introduced=10.8))) { // expected-note{{'fn_10_8' has been marked as being introduced in macOS 10.8 here, but the deployment target is macOS 10.5.0}}
+int fn_10_7() __attribute__((availability(macosx, introduced=10.7))); // expected-note{{'fn_10_7' has been marked as being introduced in macOS 10.7 here, but the deployment target is macOS 10.5}}
+int fn_10_8() __attribute__((availability(macosx, introduced=10.8))) { // expected-note{{'fn_10_8' has been marked as being introduced in macOS 10.8 here, but the deployment target is macOS 10.5}}
   return fn_10_7();
 }
 

diff  --git a/clang/test/SemaObjC/property-deprecated-warning.m b/clang/test/SemaObjC/property-deprecated-warning.m
index a1e971118b2c7..45e098baa891d 100644
--- a/clang/test/SemaObjC/property-deprecated-warning.m
+++ b/clang/test/SemaObjC/property-deprecated-warning.m
@@ -9,7 +9,7 @@ @protocol P
 @property(nonatomic,assign) id ptarget __attribute__((availability(ios,introduced=2.0,deprecated=3.0))); // expected-note {{property 'ptarget' is declared deprecated here}} expected-note {{'ptarget' has been explicitly marked deprecated here}}
 
 #if defined(WARN_PARTIAL)
-// expected-note at +2 {{'partialPtarget' has been marked as being introduced in iOS 5.0 here, but the deployment target is iOS 3.0.0}}
+// expected-note at +2 {{'partialPtarget' has been marked as being introduced in iOS 5.0 here, but the deployment target is iOS 3.0}}
 #endif
 @property(nonatomic,assign) id partialPtarget __attribute__((availability(ios,introduced=5.0)));
 @end
@@ -24,7 +24,7 @@ @interface UITableViewCell<P1>
 @property(nonatomic,assign) id target __attribute__((availability(ios,introduced=2.0,deprecated=3.0))); // expected-note {{property 'target' is declared deprecated here}} expected-note {{'setTarget:' has been explicitly marked deprecated here}}
 
 #if defined(WARN_PARTIAL)
-// expected-note at +2 {{'setPartialTarget:' has been marked as being introduced in iOS 5.0 here, but the deployment target is iOS 3.0.0}}
+// expected-note at +2 {{'setPartialTarget:' has been marked as being introduced in iOS 5.0 here, but the deployment target is iOS 3.0}}
 #endif
 @property(nonatomic,assign) id partialTarget __attribute__((availability(ios,introduced=5.0)));
 @end
@@ -40,8 +40,8 @@ @interface UITableViewCell(UIDeprecated)
                                                                                     // expected-note 2 {{'setDep_target:' has been explicitly marked deprecated here}}
 
 #if defined(WARN_PARTIAL)
-// expected-note at +3 2 {{'partial_dep_target' has been marked as being introduced in iOS 5.0 here, but the deployment target is iOS 3.0.0}}
-// expected-note at +2 2 {{'setPartial_dep_target:' has been marked as being introduced in iOS 5.0 here, but the deployment target is iOS 3.0.0}}
+// expected-note at +3 2 {{'partial_dep_target' has been marked as being introduced in iOS 5.0 here, but the deployment target is iOS 3.0}}
+// expected-note at +2 2 {{'setPartial_dep_target:' has been marked as being introduced in iOS 5.0 here, but the deployment target is iOS 3.0}}
 #endif
 @property(nonatomic,assign) id partial_dep_target  __attribute__((availability(ios,introduced=5.0)));
 @end
@@ -54,7 +54,7 @@ - (void) Meth {
   [self setTarget: (id)0]; // no-warning
   [self setDep_target: [self dep_target]]; // expected-warning {{'dep_target' is deprecated: first deprecated in iOS 3.0}} \
                                            // expected-warning {{'setDep_target:' is deprecated: first deprecated in iOS 3.0}}
-					   
+
   [self setPtarget: (id)0]; // no-warning
   [self setPartialTarget: (id)0]; // no-warning
 #if defined(WARN_PARTIAL)
@@ -101,12 +101,12 @@ @interface CustomAccessorNames
 @property(setter=setNewDelegate:,assign) id delegate __attribute__((availability(ios,introduced=2.0,deprecated=3.0))); // expected-note {{'setNewDelegate:' has been explicitly marked deprecated here}} expected-note {{property 'delegate' is declared deprecated here}}
 
 #if defined(WARN_PARTIAL)
-// expected-note at +2 {{'partialIsEnabled' has been marked as being introduced in iOS 5.0 here, but the deployment target is iOS 3.0.0}}
+// expected-note at +2 {{'partialIsEnabled' has been marked as being introduced in iOS 5.0 here, but the deployment target is iOS 3.0}}
 #endif
 @property(getter=partialIsEnabled,assign) BOOL partialEnabled __attribute__((availability(ios,introduced=5.0)));
 
 #if defined(WARN_PARTIAL)
-// expected-note at +2 {{'partialSetNewDelegate:' has been marked as being introduced in iOS 5.0 here, but the deployment target is iOS 3.0.0}}
+// expected-note at +2 {{'partialSetNewDelegate:' has been marked as being introduced in iOS 5.0 here, but the deployment target is iOS 3.0}}
 #endif
 @property(setter=partialSetNewDelegate:,assign) id partialDelegate __attribute__((availability(ios,introduced=5.0)));
 @end

diff  --git a/clang/test/SemaObjC/unguarded-availability-maccatalyst.m b/clang/test/SemaObjC/unguarded-availability-maccatalyst.m
index 590304dda505b..9d05a2ba99e55 100644
--- a/clang/test/SemaObjC/unguarded-availability-maccatalyst.m
+++ b/clang/test/SemaObjC/unguarded-availability-maccatalyst.m
@@ -15,7 +15,7 @@
 void currentlyAvailable() AVAILABLE_CURRENT;
 void willBeAvailabile() AVAILABLE_NEXT;
 #ifndef NO_WARNING
-// expected-note at -2 {{'willBeAvailabile' has been marked as being introduced in macCatalyst 14.1 here, but the deployment target is macCatalyst 14.0.0}}
+// expected-note at -2 {{'willBeAvailabile' has been marked as being introduced in macCatalyst 14.1 here, but the deployment target is macCatalyst 14}}
 #endif
 
 
@@ -23,7 +23,7 @@
 
 } Record AVAILABLE_NEXT;
 #ifndef NO_WARNING
-// expected-note at -2 {{'Record' has been marked as being introduced in macCatalyst 14.1 here, but the deployment target is macCatalyst 14.0.0}}
+// expected-note at -2 {{'Record' has been marked as being introduced in macCatalyst 14.1 here, but the deployment target is macCatalyst 14}}
 #endif
 
 AVAILABLE_PREV
@@ -56,7 +56,7 @@ void test() {
 void currentlyAvailableIOS() __attribute__((availability(ios, introduced = 14)));
 void willBeAvailabileIOS() __attribute__((availability(ios, introduced = 14.1)));
 #ifndef NO_WARNING
-// expected-note at -2 {{'willBeAvailabileIOS' has been marked as being introduced in macCatalyst 14.1 here, but the deployment target is macCatalyst 14.0.0}}
+// expected-note at -2 {{'willBeAvailabileIOS' has been marked as being introduced in macCatalyst 14.1 here, but the deployment target is macCatalyst 14}}
 #endif
 
 void testIOSAvailabilityAlsoWorks() {
@@ -77,7 +77,7 @@ void testIOSAvailabilityAlsoWorks() {
 
 } Record2 __attribute__((availability(ios, introduced = 14.1)));
 #ifndef NO_WARNING
-// expected-note at -2 {{'Record2' has been marked as being introduced in macCatalyst 14.1 here, but the deployment target is macCatalyst 14.0.0}}
+// expected-note at -2 {{'Record2' has been marked as being introduced in macCatalyst 14.1 here, but the deployment target is macCatalyst 14}}
 #endif
 
 __attribute__((availability(ios, introduced = 10)))

diff  --git a/clang/test/SemaObjC/unguarded-availability.m b/clang/test/SemaObjC/unguarded-availability.m
index 0ee57301c3f54..dffad1dbe0f0f 100644
--- a/clang/test/SemaObjC/unguarded-availability.m
+++ b/clang/test/SemaObjC/unguarded-availability.m
@@ -5,14 +5,14 @@
 #define AVAILABLE_10_11 __attribute__((availability(macos, introduced = 10.11)))
 #define AVAILABLE_10_12 __attribute__((availability(macos, introduced = 10.12)))
 
-typedef int AVAILABLE_10_12 new_int; // expected-note + {{'new_int' has been marked as being introduced in macOS 10.12 here, but the deployment target is macOS 10.9.0}}
+typedef int AVAILABLE_10_12 new_int; // expected-note + {{'new_int' has been marked as being introduced in macOS 10.12 here, but the deployment target is macOS 10.9}}
 
-int func_10_11() AVAILABLE_10_11; // expected-note 8 {{'func_10_11' has been marked as being introduced in macOS 10.11 here, but the deployment target is macOS 10.9.0}}
+int func_10_11() AVAILABLE_10_11; // expected-note 8 {{'func_10_11' has been marked as being introduced in macOS 10.11 here, but the deployment target is macOS 10.9}}
 
 #ifdef OBJCPP
-// expected-note at +2 6 {{'func_10_12' has been marked as being introduced in macOS 10.12 here, but the deployment target is macOS 10.9.0}}
+// expected-note at +2 6 {{'func_10_12' has been marked as being introduced in macOS 10.12 here, but the deployment target is macOS 10.9}}
 #endif
-int func_10_12() AVAILABLE_10_12; // expected-note 7 {{'func_10_12' has been marked as being introduced in macOS 10.12 here, but the deployment target is macOS 10.9.0}}
+int func_10_12() AVAILABLE_10_12; // expected-note 7 {{'func_10_12' has been marked as being introduced in macOS 10.12 here, but the deployment target is macOS 10.9}}
 
 int func_10_0() AVAILABLE_10_0;
 
@@ -61,11 +61,11 @@ void star_case() {
   }
 }
 
-typedef int int_10_11 AVAILABLE_10_11; // expected-note {{'int_10_11' has been marked as being introduced in macOS 10.11 here, but the deployment target is macOS 10.9.0}}
+typedef int int_10_11 AVAILABLE_10_11; // expected-note {{'int_10_11' has been marked as being introduced in macOS 10.11 here, but the deployment target is macOS 10.9}}
 #ifdef OBJCPP
-// expected-note at +2 {{'int_10_12' has been marked as being introduced in macOS 10.12 here, but the deployment target is macOS 10.9.0}}
+// expected-note at +2 {{'int_10_12' has been marked as being introduced in macOS 10.12 here, but the deployment target is macOS 10.9}}
 #endif
-typedef int int_10_12 AVAILABLE_10_12; // expected-note 2 {{'int_10_12' has been marked as being introduced in macOS 10.12 here, but the deployment target is macOS 10.9.0}}
+typedef int int_10_12 AVAILABLE_10_12; // expected-note 2 {{'int_10_12' has been marked as being introduced in macOS 10.12 here, but the deployment target is macOS 10.9}}
 
 void use_typedef() {
   int_10_11 x; // expected-warning{{'int_10_11' is only available on macOS 10.11 or newer}} expected-note{{enclose 'int_10_11' in an @available check to silence this warning}}
@@ -106,10 +106,10 @@ int protected_scope() {
 
 struct S {
   int m1;
-  int m2 __attribute__((availability(macos, introduced = 10.12))); // expected-note{{has been marked as being introduced in macOS 10.12 here, but the deployment target is macOS 10.9.0}}
+  int m2 __attribute__((availability(macos, introduced = 10.12))); // expected-note{{has been marked as being introduced in macOS 10.12 here, but the deployment target is macOS 10.9}}
 
   struct Nested {
-    int nested_member __attribute__((availability(macos, introduced = 10.12))); // expected-note{{'nested_member' has been marked as being introduced in macOS 10.12 here, but the deployment target is macOS 10.9.0}}
+    int nested_member __attribute__((availability(macos, introduced = 10.12))); // expected-note{{'nested_member' has been marked as being introduced in macOS 10.12 here, but the deployment target is macOS 10.9}}
   } n;
 };
 
@@ -147,9 +147,9 @@ void test_blocks() {
 
 AVAILABLE_10_12
 __attribute__((objc_root_class))
- at interface InterWithProp // expected-note 2 {{'InterWithProp' has been marked as being introduced in macOS 10.12 here, but the deployment target is macOS 10.9.0}}
+ at interface InterWithProp // expected-note 2 {{'InterWithProp' has been marked as being introduced in macOS 10.12 here, but the deployment target is macOS 10.9}}
 @property(class) int x;
-+ (void) setX: (int)newX AVAILABLE_10_12; // expected-note{{'setX:' has been marked as being introduced in macOS 10.12 here, but the deployment target is macOS 10.9.0}}
++ (void) setX: (int)newX AVAILABLE_10_12; // expected-note{{'setX:' has been marked as being introduced in macOS 10.12 here, but the deployment target is macOS 10.9}}
 @end
 void test_property(void) {
   int y = InterWithProp.x; // expected-warning{{'InterWithProp' is only available on macOS 10.12 or newer}} expected-note{{@available}}
@@ -158,7 +158,7 @@ void test_property(void) {
 
 __attribute__((objc_root_class))
 @interface Subscriptable
-- (id)objectAtIndexedSubscript:(int)sub AVAILABLE_10_12; // expected-note{{'objectAtIndexedSubscript:' has been marked as being introduced in macOS 10.12 here, but the deployment target is macOS 10.9.0}}
+- (id)objectAtIndexedSubscript:(int)sub AVAILABLE_10_12; // expected-note{{'objectAtIndexedSubscript:' has been marked as being introduced in macOS 10.12 here, but the deployment target is macOS 10.9}}
 @end
 
 void test_at(Subscriptable *x) {
@@ -204,7 +204,7 @@ int instantiate_template() {
 }
 
 template <class>
-int with_availability_attr() AVAILABLE_10_11 { // expected-note 2 {{'with_availability_attr<int>' has been marked as being introduced in macOS 10.11 here, but the deployment target is macOS 10.9.0}}
+int with_availability_attr() AVAILABLE_10_11 { // expected-note 2 {{'with_availability_attr<int>' has been marked as being introduced in macOS 10.11 here, but the deployment target is macOS 10.9}}
   return 0;
 }
 
@@ -282,9 +282,9 @@ void f() {
 };
 
 #ifdef OBJCPP
-static constexpr int AVAILABLE_10_12 SomeConstexprValue = 2; // expected-note{{'SomeConstexprValue' has been marked as being introduced in macOS 10.12 here, but the deployment target is macOS 10.9.0}}
+static constexpr int AVAILABLE_10_12 SomeConstexprValue = 2; // expected-note{{'SomeConstexprValue' has been marked as being introduced in macOS 10.12 here, but the deployment target is macOS 10.9}}
 typedef enum { // expected-note{{annotate anonymous enum with an availability attribute}}
-  SomeValue = SomeConstexprValue // expected-warning{{'SomeConstexprValue' is only available on macOS 10.12 or newer}} 
+  SomeValue = SomeConstexprValue // expected-warning{{'SomeConstexprValue' is only available on macOS 10.12 or newer}}
 } SomeEnum;
 #endif
 
@@ -297,7 +297,7 @@ @interface Proper // expected-note{{annotate 'Proper' with an availability attri
 @end
 
 void with_local_struct() {
-  struct local { 
+  struct local {
     new_int x; // expected-warning{{'new_int' is only available}} expected-note{{enclose 'new_int' in an @available check}}
   };
   if (@available(macos 10.12, *)) {
@@ -311,7 +311,7 @@ void with_local_struct() {
 // Avoid the warning on protocol requirements.
 
 AVAILABLE_10_12
- at protocol NewProtocol // expected-note {{'NewProtocol' has been marked as being introduced in macOS 10.12 here, but the deployment target is macOS 10.9.0}}
+ at protocol NewProtocol // expected-note {{'NewProtocol' has been marked as being introduced in macOS 10.12 here, but the deployment target is macOS 10.9}}
 @end
 
 @protocol ProtocolWithNewProtocolRequirement <NewProtocol> // expected-note {{annotate 'ProtocolWithNewProtocolRequirement' with an availability attribute to silence}}
@@ -334,7 +334,7 @@ @interface BaseClass (CategoryWithNewProtocolRequirement) <NewProtocol>
 typedef enum {
   AK_Dodo __attribute__((availability(macos, deprecated=10.3))), // expected-note 3 {{marked deprecated here}}
   AK_Cat __attribute__((availability(macos, introduced=10.4))),
-  AK_CyborgCat __attribute__((availability(macos, introduced=10.12))), // expected-note {{'AK_CyborgCat' has been marked as being introduced in macOS 10.12 here, but the deployment target is macOS 10.9.0}}
+  AK_CyborgCat __attribute__((availability(macos, introduced=10.12))), // expected-note {{'AK_CyborgCat' has been marked as being introduced in macOS 10.12 here, but the deployment target is macOS 10.9}}
 } Animals;
 
 void switchAnimals(Animals a) {

diff  --git a/llvm/include/llvm/ADT/Triple.h b/llvm/include/llvm/ADT/Triple.h
index 2fd3047acbfd8..5dbd4f16bfd5d 100644
--- a/llvm/include/llvm/ADT/Triple.h
+++ b/llvm/include/llvm/ADT/Triple.h
@@ -10,6 +10,7 @@
 #define LLVM_ADT_TRIPLE_H
 
 #include "llvm/ADT/Twine.h"
+#include "llvm/Support/VersionTuple.h"
 
 // Some system headers or GCC predefined macros conflict with identifiers in
 // this file.  Undefine them here.
@@ -19,8 +20,6 @@
 
 namespace llvm {
 
-class VersionTuple;
-
 /// Triple - Helper class for working with autoconf configuration names. For
 /// historical reasons, we also call these 'triples' (they used to contain
 /// exactly three fields).
@@ -332,10 +331,7 @@ class Triple {
   /// triple, if present.
   ///
   /// For example, "fooos1.2.3" would return (1, 2, 3).
-  ///
-  /// If an entry is not defined, it will be returned as 0.
-  void getEnvironmentVersion(unsigned &Major, unsigned &Minor,
-                             unsigned &Micro) const;
+  VersionTuple getEnvironmentVersion() const;
 
   /// Get the object format for this triple.
   ObjectFormatType getObjectFormat() const { return ObjectFormat; }
@@ -344,34 +340,25 @@ class Triple {
   /// present.
   ///
   /// For example, "fooos1.2.3" would return (1, 2, 3).
-  ///
-  /// If an entry is not defined, it will be returned as 0.
-  void getOSVersion(unsigned &Major, unsigned &Minor, unsigned &Micro) const;
+  VersionTuple getOSVersion() const;
 
   /// Return just the major version number, this is specialized because it is a
   /// common query.
-  unsigned getOSMajorVersion() const {
-    unsigned Maj, Min, Micro;
-    getOSVersion(Maj, Min, Micro);
-    return Maj;
-  }
+  unsigned getOSMajorVersion() const { return getOSVersion().getMajor(); }
 
   /// Parse the version number as with getOSVersion and then translate generic
   /// "darwin" versions to the corresponding OS X versions.  This may also be
   /// called with IOS triples but the OS X version number is just set to a
   /// constant 10.4.0 in that case.  Returns true if successful.
-  bool getMacOSXVersion(unsigned &Major, unsigned &Minor,
-                        unsigned &Micro) const;
+  bool getMacOSXVersion(VersionTuple &Version) const;
 
   /// Parse the version number as with getOSVersion.  This should only be called
   /// with IOS or generic triples.
-  void getiOSVersion(unsigned &Major, unsigned &Minor,
-                     unsigned &Micro) const;
+  VersionTuple getiOSVersion() const;
 
   /// Parse the version number as with getOSVersion.  This should only be called
   /// with WatchOS or generic triples.
-  void getWatchOSVersion(unsigned &Major, unsigned &Minor,
-                         unsigned &Micro) const;
+  VersionTuple getWatchOSVersion() const;
 
   /// @}
   /// @name Direct Component Access
@@ -428,23 +415,17 @@ class Triple {
   /// the target triple.
   bool isOSVersionLT(unsigned Major, unsigned Minor = 0,
                      unsigned Micro = 0) const {
-    unsigned LHS[3];
-    getOSVersion(LHS[0], LHS[1], LHS[2]);
-
-    if (LHS[0] != Major)
-      return LHS[0] < Major;
-    if (LHS[1] != Minor)
-      return LHS[1] < Minor;
-    if (LHS[2] != Micro)
-      return LHS[2] < Micro;
-
-    return false;
+    if (Minor == 0) {
+      return getOSVersion() < VersionTuple(Major);
+    }
+    if (Micro == 0) {
+      return getOSVersion() < VersionTuple(Major, Minor);
+    }
+    return getOSVersion() < VersionTuple(Major, Minor, Micro);
   }
 
   bool isOSVersionLT(const Triple &Other) const {
-    unsigned RHS[3];
-    Other.getOSVersion(RHS[0], RHS[1], RHS[2]);
-    return isOSVersionLT(RHS[0], RHS[1], RHS[2]);
+    return getOSVersion() < Other.getOSVersion();
   }
 
   /// Comparison function for checking OS X version compatibility, which handles
@@ -678,14 +659,13 @@ class Triple {
   bool isAndroidVersionLT(unsigned Major) const {
     assert(isAndroid() && "Not an Android triple!");
 
-    unsigned Env[3];
-    getEnvironmentVersion(Env[0], Env[1], Env[2]);
+    VersionTuple Version = getEnvironmentVersion();
 
     // 64-bit targets did not exist before API level 21 (Lollipop).
-    if (isArch64Bit() && Env[0] < 21)
-      Env[0] = 21;
+    if (isArch64Bit() && Version.getMajor() < 21)
+      return VersionTuple(21) < VersionTuple(Major);
 
-    return Env[0] < Major;
+    return Version < VersionTuple(Major);
   }
 
   /// Tests whether the environment is musl-libc

diff  --git a/llvm/lib/Analysis/TargetLibraryInfo.cpp b/llvm/lib/Analysis/TargetLibraryInfo.cpp
index 72fbd5ad3f686..02923c2c7eb14 100644
--- a/llvm/lib/Analysis/TargetLibraryInfo.cpp
+++ b/llvm/lib/Analysis/TargetLibraryInfo.cpp
@@ -238,9 +238,8 @@ static void initialize(TargetLibraryInfoImpl &TLI, const Triple &T,
     // e.g., x86_64-pc-windows-msvc18.
     bool hasPartialC99 = true;
     if (T.isKnownWindowsMSVCEnvironment()) {
-      unsigned Major, Minor, Micro;
-      T.getEnvironmentVersion(Major, Minor, Micro);
-      hasPartialC99 = (Major == 0 || Major >= 19);
+      VersionTuple Version = T.getEnvironmentVersion();
+      hasPartialC99 = (Version.getMajor() == 0 || Version.getMajor() >= 19);
     }
 
     // Latest targets support C89 math functions, in part.

diff  --git a/llvm/lib/MC/MCStreamer.cpp b/llvm/lib/MC/MCStreamer.cpp
index f4e64b42c817b..b0da490327d47 100644
--- a/llvm/lib/MC/MCStreamer.cpp
+++ b/llvm/lib/MC/MCStreamer.cpp
@@ -1316,37 +1316,36 @@ void MCStreamer::emitVersionForTarget(const Triple &Target,
   if (Target.getOSMajorVersion() == 0)
     return;
 
-  unsigned Major = 0;
-  unsigned Minor = 0;
-  unsigned Update = 0;
+  VersionTuple Version;
   switch (Target.getOS()) {
   case Triple::MacOSX:
   case Triple::Darwin:
-    Target.getMacOSXVersion(Major, Minor, Update);
+    Target.getMacOSXVersion(Version);
     break;
   case Triple::IOS:
   case Triple::TvOS:
-    Target.getiOSVersion(Major, Minor, Update);
+    Version = Target.getiOSVersion();
     break;
   case Triple::WatchOS:
-    Target.getWatchOSVersion(Major, Minor, Update);
+    Version = Target.getWatchOSVersion();
     break;
   default:
     llvm_unreachable("unexpected OS type");
   }
-  assert(Major != 0 && "A non-zero major version is expected");
-  auto LinkedTargetVersion = targetVersionOrMinimumSupportedOSVersion(
-      Target, VersionTuple(Major, Minor, Update));
+  assert(Version.getMajor() != 0 && "A non-zero major version is expected");
+  auto LinkedTargetVersion =
+      targetVersionOrMinimumSupportedOSVersion(Target, Version);
   auto BuildVersionOSVersion = getMachoBuildVersionSupportedOS(Target);
   if (BuildVersionOSVersion.empty() ||
       LinkedTargetVersion >= BuildVersionOSVersion)
     return emitBuildVersion(getMachoBuildVersionPlatformType(Target),
                             LinkedTargetVersion.getMajor(),
-                            *LinkedTargetVersion.getMinor(),
-                            *LinkedTargetVersion.getSubminor(), SDKVersion);
+                            LinkedTargetVersion.getMinor().getValueOr(0),
+                            LinkedTargetVersion.getSubminor().getValueOr(0),
+                            SDKVersion);
 
   emitVersionMin(getMachoVersionMinLoadCommandType(Target),
                  LinkedTargetVersion.getMajor(),
-                 *LinkedTargetVersion.getMinor(),
-                 *LinkedTargetVersion.getSubminor(), SDKVersion);
+                 LinkedTargetVersion.getMinor().getValueOr(0),
+                 LinkedTargetVersion.getSubminor().getValueOr(0), SDKVersion);
 }

diff  --git a/llvm/lib/Support/Triple.cpp b/llvm/lib/Support/Triple.cpp
index b9a92e280576d..1b063f6c42146 100644
--- a/llvm/lib/Support/Triple.cpp
+++ b/llvm/lib/Support/Triple.cpp
@@ -1091,53 +1091,22 @@ StringRef Triple::getOSAndEnvironmentName() const {
   return Tmp.split('-').second;                      // Strip second component
 }
 
-static unsigned EatNumber(StringRef &Str) {
-  assert(!Str.empty() && isDigit(Str[0]) && "Not a number");
-  unsigned Result = 0;
-
-  do {
-    // Consume the leading digit.
-    Result = Result*10 + (Str[0] - '0');
-
-    // Eat the digit.
-    Str = Str.substr(1);
-  } while (!Str.empty() && isDigit(Str[0]));
-
-  return Result;
+static VersionTuple parseVersionFromName(StringRef Name) {
+  VersionTuple Version;
+  Version.tryParse(Name);
+  return Version.withoutBuild();
 }
 
-static void parseVersionFromName(StringRef Name, unsigned &Major,
-                                 unsigned &Minor, unsigned &Micro) {
-  // Any unset version defaults to 0.
-  Major = Minor = Micro = 0;
-
-  // Parse up to three components.
-  unsigned *Components[3] = {&Major, &Minor, &Micro};
-  for (unsigned i = 0; i != 3; ++i) {
-    if (Name.empty() || Name[0] < '0' || Name[0] > '9')
-      break;
-
-    // Consume the leading number.
-    *Components[i] = EatNumber(Name);
-
-    // Consume the separator, if present.
-    if (Name.startswith("."))
-      Name = Name.substr(1);
-  }
-}
-
-void Triple::getEnvironmentVersion(unsigned &Major, unsigned &Minor,
-                                   unsigned &Micro) const {
+VersionTuple Triple::getEnvironmentVersion() const {
   StringRef EnvironmentName = getEnvironmentName();
   StringRef EnvironmentTypeName = getEnvironmentTypeName(getEnvironment());
   if (EnvironmentName.startswith(EnvironmentTypeName))
     EnvironmentName = EnvironmentName.substr(EnvironmentTypeName.size());
 
-  parseVersionFromName(EnvironmentName, Major, Minor, Micro);
+  return parseVersionFromName(EnvironmentName);
 }
 
-void Triple::getOSVersion(unsigned &Major, unsigned &Minor,
-                          unsigned &Micro) const {
+VersionTuple Triple::getOSVersion() const {
   StringRef OSName = getOSName();
   // Assume that the OS portion of the triple starts with the canonical name.
   StringRef OSTypeName = getOSTypeName(getOS());
@@ -1146,40 +1115,36 @@ void Triple::getOSVersion(unsigned &Major, unsigned &Minor,
   else if (getOS() == MacOSX)
     OSName.consume_front("macos");
 
-  parseVersionFromName(OSName, Major, Minor, Micro);
+  return parseVersionFromName(OSName);
 }
 
-bool Triple::getMacOSXVersion(unsigned &Major, unsigned &Minor,
-                              unsigned &Micro) const {
-  getOSVersion(Major, Minor, Micro);
+bool Triple::getMacOSXVersion(VersionTuple &Version) const {
+  Version = getOSVersion();
 
   switch (getOS()) {
   default: llvm_unreachable("unexpected OS for Darwin triple");
   case Darwin:
     // Default to darwin8, i.e., MacOSX 10.4.
-    if (Major == 0)
-      Major = 8;
+    if (Version.getMajor() == 0)
+      Version = VersionTuple(8);
     // Darwin version numbers are skewed from OS X versions.
-    if (Major < 4)
+    if (Version.getMajor() < 4) {
       return false;
-    if (Major <= 19) {
-      Micro = 0;
-      Minor = Major - 4;
-      Major = 10;
+    }
+    if (Version.getMajor() <= 19) {
+      Version = VersionTuple(10, Version.getMajor() - 4);
     } else {
-      Micro = 0;
-      Minor = 0;
       // darwin20+ corresponds to macOS 11+.
-      Major = 11 + Major - 20;
+      Version = VersionTuple(11 + Version.getMajor() - 20);
     }
     break;
   case MacOSX:
     // Default to 10.4.
-    if (Major == 0) {
-      Major = 10;
-      Minor = 4;
-    } else if (Major < 10)
+    if (Version.getMajor() == 0) {
+      Version = VersionTuple(10, 4);
+    } else if (Version.getMajor() < 10) {
       return false;
+    }
     break;
   case IOS:
   case TvOS:
@@ -1188,16 +1153,13 @@ bool Triple::getMacOSXVersion(unsigned &Major, unsigned &Minor,
     // the clang driver combines OS X and IOS support into a common Darwin
     // toolchain that wants to know the OS X version number even when targeting
     // IOS.
-    Major = 10;
-    Minor = 4;
-    Micro = 0;
+    Version = VersionTuple(10, 4);
     break;
   }
   return true;
 }
 
-void Triple::getiOSVersion(unsigned &Major, unsigned &Minor,
-                           unsigned &Micro) const {
+VersionTuple Triple::getiOSVersion() const {
   switch (getOS()) {
   default: llvm_unreachable("unexpected OS for Darwin triple");
   case Darwin:
@@ -1206,24 +1168,21 @@ void Triple::getiOSVersion(unsigned &Major, unsigned &Minor,
     // the clang driver combines OS X and IOS support into a common Darwin
     // toolchain that wants to know the iOS version number even when targeting
     // OS X.
-    Major = 5;
-    Minor = 0;
-    Micro = 0;
-    break;
+    return VersionTuple(5);
   case IOS:
-  case TvOS:
-    getOSVersion(Major, Minor, Micro);
+  case TvOS: {
+    VersionTuple Version = getOSVersion();
     // Default to 5.0 (or 7.0 for arm64).
-    if (Major == 0)
-      Major = (getArch() == aarch64) ? 7 : 5;
-    break;
+    if (Version.getMajor() == 0)
+      return (getArch() == aarch64) ? VersionTuple(7) : VersionTuple(5);
+    return Version;
+  }
   case WatchOS:
     llvm_unreachable("conflicting triple info");
   }
 }
 
-void Triple::getWatchOSVersion(unsigned &Major, unsigned &Minor,
-                               unsigned &Micro) const {
+VersionTuple Triple::getWatchOSVersion() const {
   switch (getOS()) {
   default: llvm_unreachable("unexpected OS for Darwin triple");
   case Darwin:
@@ -1232,15 +1191,13 @@ void Triple::getWatchOSVersion(unsigned &Major, unsigned &Minor,
     // the clang driver combines OS X and IOS support into a common Darwin
     // toolchain that wants to know the iOS version number even when targeting
     // OS X.
-    Major = 2;
-    Minor = 0;
-    Micro = 0;
-    break;
-  case WatchOS:
-    getOSVersion(Major, Minor, Micro);
-    if (Major == 0)
-      Major = 2;
-    break;
+    return VersionTuple(2);
+  case WatchOS: {
+    VersionTuple Version = getOSVersion();
+    if (Version.getMajor() == 0)
+      return VersionTuple(2);
+    return Version;
+  }
   case IOS:
     llvm_unreachable("conflicting triple info");
   }

diff  --git a/llvm/lib/Target/AArch64/AArch64Subtarget.cpp b/llvm/lib/Target/AArch64/AArch64Subtarget.cpp
index d782d6352cbe9..f7d3dd0bc2225 100644
--- a/llvm/lib/Target/AArch64/AArch64Subtarget.cpp
+++ b/llvm/lib/Target/AArch64/AArch64Subtarget.cpp
@@ -346,9 +346,7 @@ bool AArch64Subtarget::supportsAddressTopByteIgnored() const {
     return false;
 
   if (TargetTriple.isiOS()) {
-    unsigned Major, Minor, Micro;
-    TargetTriple.getiOSVersion(Major, Minor, Micro);
-    return Major >= 8;
+    return TargetTriple.getiOSVersion() >= VersionTuple(8);
   }
 
   return false;

diff  --git a/llvm/lib/Target/AArch64/AArch64Subtarget.h b/llvm/lib/Target/AArch64/AArch64Subtarget.h
index 19db774ccd7bd..cbc5f03280e51 100644
--- a/llvm/lib/Target/AArch64/AArch64Subtarget.h
+++ b/llvm/lib/Target/AArch64/AArch64Subtarget.h
@@ -632,8 +632,7 @@ class AArch64Subtarget final : public AArch64GenSubtargetInfo {
     // extended frames should be flagged as present.
     const Triple &TT = getTargetTriple();
 
-    unsigned Major, Minor, Micro;
-    TT.getOSVersion(Major, Minor, Micro);
+    unsigned Major = TT.getOSVersion().getMajor();
     switch(TT.getOS()) {
     default:
       return false;

diff  --git a/llvm/lib/Target/X86/X86Subtarget.h b/llvm/lib/Target/X86/X86Subtarget.h
index 9da54dc2e9b7a..5d773f0c57dfb 100644
--- a/llvm/lib/Target/X86/X86Subtarget.h
+++ b/llvm/lib/Target/X86/X86Subtarget.h
@@ -958,8 +958,7 @@ class X86Subtarget final : public X86GenSubtargetInfo {
     // extended frames should be flagged as present.
     const Triple &TT = getTargetTriple();
 
-    unsigned Major, Minor, Micro;
-    TT.getOSVersion(Major, Minor, Micro);
+    unsigned Major = TT.getOSVersion().getMajor();
     switch(TT.getOS()) {
     default:
       return false;

diff  --git a/llvm/unittests/ADT/TripleTest.cpp b/llvm/unittests/ADT/TripleTest.cpp
index a6a79ed5a39e9..4853dfc13558b 100644
--- a/llvm/unittests/ADT/TripleTest.cpp
+++ b/llvm/unittests/ADT/TripleTest.cpp
@@ -117,6 +117,18 @@ TEST(TripleTest, ParsedIDs) {
   EXPECT_EQ(Triple::Linux, T.getOS());
   EXPECT_EQ(Triple::MuslX32, T.getEnvironment());
 
+  T = Triple("arm-unknown-linux-android16");
+  EXPECT_EQ(Triple::arm, T.getArch());
+  EXPECT_EQ(Triple::UnknownVendor, T.getVendor());
+  EXPECT_EQ(Triple::Linux, T.getOS());
+  EXPECT_EQ(Triple::Android, T.getEnvironment());
+
+  T = Triple("aarch64-unknown-linux-android21");
+  EXPECT_EQ(Triple::aarch64, T.getArch());
+  EXPECT_EQ(Triple::UnknownVendor, T.getVendor());
+  EXPECT_EQ(Triple::Linux, T.getOS());
+  EXPECT_EQ(Triple::Android, T.getEnvironment());
+
   // PS4 has two spellings for the vendor.
   T = Triple("x86_64-scei-ps4");
   EXPECT_EQ(Triple::x86_64, T.getArch());
@@ -1261,7 +1273,7 @@ TEST(TripleTest, EndianArchVariants) {
 
 TEST(TripleTest, getOSVersion) {
   Triple T;
-  unsigned Major, Minor, Micro;
+  VersionTuple Version;
 
   T = Triple("i386-apple-darwin9");
   EXPECT_TRUE(T.isMacOSX());
@@ -1269,14 +1281,10 @@ TEST(TripleTest, getOSVersion) {
   EXPECT_FALSE(T.isArch16Bit());
   EXPECT_TRUE(T.isArch32Bit());
   EXPECT_FALSE(T.isArch64Bit());
-  T.getMacOSXVersion(Major, Minor, Micro);
-  EXPECT_EQ((unsigned)10, Major);
-  EXPECT_EQ((unsigned)5, Minor);
-  EXPECT_EQ((unsigned)0, Micro);
-  T.getiOSVersion(Major, Minor, Micro);
-  EXPECT_EQ((unsigned)5, Major);
-  EXPECT_EQ((unsigned)0, Minor);
-  EXPECT_EQ((unsigned)0, Micro);
+  T.getMacOSXVersion(Version);
+  EXPECT_EQ(VersionTuple(10, 5), Version);
+  Version = T.getiOSVersion();
+  EXPECT_EQ(VersionTuple(5), Version);
 
   T = Triple("x86_64-apple-darwin9");
   EXPECT_TRUE(T.isMacOSX());
@@ -1284,14 +1292,10 @@ TEST(TripleTest, getOSVersion) {
   EXPECT_FALSE(T.isArch16Bit());
   EXPECT_FALSE(T.isArch32Bit());
   EXPECT_TRUE(T.isArch64Bit());
-  T.getMacOSXVersion(Major, Minor, Micro);
-  EXPECT_EQ((unsigned)10, Major);
-  EXPECT_EQ((unsigned)5, Minor);
-  EXPECT_EQ((unsigned)0, Micro);
-  T.getiOSVersion(Major, Minor, Micro);
-  EXPECT_EQ((unsigned)5, Major);
-  EXPECT_EQ((unsigned)0, Minor);
-  EXPECT_EQ((unsigned)0, Micro);
+  T.getMacOSXVersion(Version);
+  EXPECT_EQ(VersionTuple(10, 5), Version);
+  Version = T.getiOSVersion();
+  EXPECT_EQ(VersionTuple(5), Version);
 
   T = Triple("x86_64-apple-macosx");
   EXPECT_TRUE(T.isMacOSX());
@@ -1299,14 +1303,10 @@ TEST(TripleTest, getOSVersion) {
   EXPECT_FALSE(T.isArch16Bit());
   EXPECT_FALSE(T.isArch32Bit());
   EXPECT_TRUE(T.isArch64Bit());
-  T.getMacOSXVersion(Major, Minor, Micro);
-  EXPECT_EQ((unsigned)10, Major);
-  EXPECT_EQ((unsigned)4, Minor);
-  EXPECT_EQ((unsigned)0, Micro);
-  T.getiOSVersion(Major, Minor, Micro);
-  EXPECT_EQ((unsigned)5, Major);
-  EXPECT_EQ((unsigned)0, Minor);
-  EXPECT_EQ((unsigned)0, Micro);
+  T.getMacOSXVersion(Version);
+  EXPECT_EQ(VersionTuple(10, 4), Version);
+  Version = T.getiOSVersion();
+  EXPECT_EQ(VersionTuple(5), Version);
 
   T = Triple("x86_64-apple-macosx10.7");
   EXPECT_TRUE(T.isMacOSX());
@@ -1314,14 +1314,10 @@ TEST(TripleTest, getOSVersion) {
   EXPECT_FALSE(T.isArch16Bit());
   EXPECT_FALSE(T.isArch32Bit());
   EXPECT_TRUE(T.isArch64Bit());
-  T.getMacOSXVersion(Major, Minor, Micro);
-  EXPECT_EQ((unsigned)10, Major);
-  EXPECT_EQ((unsigned)7, Minor);
-  EXPECT_EQ((unsigned)0, Micro);
-  T.getiOSVersion(Major, Minor, Micro);
-  EXPECT_EQ((unsigned)5, Major);
-  EXPECT_EQ((unsigned)0, Minor);
-  EXPECT_EQ((unsigned)0, Micro);
+  T.getMacOSXVersion(Version);
+  EXPECT_EQ(VersionTuple(10, 7), Version);
+  Version = T.getiOSVersion();
+  EXPECT_EQ(VersionTuple(5), Version);
 
   T = Triple("x86_64-apple-macos11.0");
   EXPECT_TRUE(T.isMacOSX());
@@ -1329,10 +1325,8 @@ TEST(TripleTest, getOSVersion) {
   EXPECT_FALSE(T.isArch16Bit());
   EXPECT_FALSE(T.isArch32Bit());
   EXPECT_TRUE(T.isArch64Bit());
-  T.getMacOSXVersion(Major, Minor, Micro);
-  EXPECT_EQ((unsigned)11, Major);
-  EXPECT_EQ((unsigned)0, Minor);
-  EXPECT_EQ((unsigned)0, Micro);
+  T.getMacOSXVersion(Version);
+  EXPECT_EQ(VersionTuple(11, 0), Version);
 
   T = Triple("arm64-apple-macosx11.5.8");
   EXPECT_TRUE(T.isMacOSX());
@@ -1340,34 +1334,26 @@ TEST(TripleTest, getOSVersion) {
   EXPECT_FALSE(T.isArch16Bit());
   EXPECT_FALSE(T.isArch32Bit());
   EXPECT_TRUE(T.isArch64Bit());
-  T.getMacOSXVersion(Major, Minor, Micro);
-  EXPECT_EQ((unsigned)11, Major);
-  EXPECT_EQ((unsigned)5, Minor);
-  EXPECT_EQ((unsigned)8, Micro);
+  T.getMacOSXVersion(Version);
+  EXPECT_EQ(VersionTuple(11, 5, 8), Version);
 
   // 10.16 forms a valid triple, even though it's not
   // a version of a macOS.
   T = Triple("x86_64-apple-macos10.16");
   EXPECT_TRUE(T.isMacOSX());
-  T.getMacOSXVersion(Major, Minor, Micro);
-  EXPECT_EQ((unsigned)10, Major);
-  EXPECT_EQ((unsigned)16, Minor);
-  EXPECT_EQ((unsigned)0, Micro);
+  T.getMacOSXVersion(Version);
+  EXPECT_EQ(VersionTuple(10, 16), Version);
 
   T = Triple("x86_64-apple-darwin20");
   EXPECT_TRUE(T.isMacOSX());
-  T.getMacOSXVersion(Major, Minor, Micro);
-  EXPECT_EQ((unsigned)11, Major);
-  EXPECT_EQ((unsigned)0, Minor);
-  EXPECT_EQ((unsigned)0, Micro);
+  T.getMacOSXVersion(Version);
+  EXPECT_EQ(VersionTuple(11), Version);
 
   // For darwin triples on macOS 11, only compare the major version.
   T = Triple("x86_64-apple-darwin20.2");
   EXPECT_TRUE(T.isMacOSX());
-  T.getMacOSXVersion(Major, Minor, Micro);
-  EXPECT_EQ((unsigned)11, Major);
-  EXPECT_EQ((unsigned)0, Minor);
-  EXPECT_EQ((unsigned)0, Micro);
+  T.getMacOSXVersion(Version);
+  EXPECT_EQ(VersionTuple(11), Version);
 
   T = Triple("armv7-apple-ios");
   EXPECT_FALSE(T.isMacOSX());
@@ -1375,14 +1361,10 @@ TEST(TripleTest, getOSVersion) {
   EXPECT_FALSE(T.isArch16Bit());
   EXPECT_TRUE(T.isArch32Bit());
   EXPECT_FALSE(T.isArch64Bit());
-  T.getMacOSXVersion(Major, Minor, Micro);
-  EXPECT_EQ((unsigned)10, Major);
-  EXPECT_EQ((unsigned)4, Minor);
-  EXPECT_EQ((unsigned)0, Micro);
-  T.getiOSVersion(Major, Minor, Micro);
-  EXPECT_EQ((unsigned)5, Major);
-  EXPECT_EQ((unsigned)0, Minor);
-  EXPECT_EQ((unsigned)0, Micro);
+  T.getMacOSXVersion(Version);
+  EXPECT_EQ(VersionTuple(10, 4), Version);
+  Version = T.getiOSVersion();
+  EXPECT_EQ(VersionTuple(5), Version);
 
   T = Triple("armv7-apple-ios7.0");
   EXPECT_FALSE(T.isMacOSX());
@@ -1390,36 +1372,45 @@ TEST(TripleTest, getOSVersion) {
   EXPECT_FALSE(T.isArch16Bit());
   EXPECT_TRUE(T.isArch32Bit());
   EXPECT_FALSE(T.isArch64Bit());
-  T.getMacOSXVersion(Major, Minor, Micro);
-  EXPECT_EQ((unsigned)10, Major);
-  EXPECT_EQ((unsigned)4, Minor);
-  EXPECT_EQ((unsigned)0, Micro);
-  T.getiOSVersion(Major, Minor, Micro);
-  EXPECT_EQ((unsigned)7, Major);
-  EXPECT_EQ((unsigned)0, Minor);
-  EXPECT_EQ((unsigned)0, Micro);
+  T.getMacOSXVersion(Version);
+  EXPECT_EQ(VersionTuple(10, 4), Version);
+  Version = T.getiOSVersion();
+  EXPECT_EQ(VersionTuple(7, 0), Version);
   EXPECT_FALSE(T.isSimulatorEnvironment());
 
   T = Triple("x86_64-apple-ios10.3-simulator");
   EXPECT_TRUE(T.isiOS());
-  T.getiOSVersion(Major, Minor, Micro);
-  EXPECT_EQ((unsigned)10, Major);
-  EXPECT_EQ((unsigned)3, Minor);
-  EXPECT_EQ((unsigned)0, Micro);
+  Version = T.getiOSVersion();
+  EXPECT_EQ(VersionTuple(10, 3), Version);
   EXPECT_TRUE(T.isSimulatorEnvironment());
   EXPECT_FALSE(T.isMacCatalystEnvironment());
 
   T = Triple("x86_64-apple-ios13.0-macabi");
   EXPECT_TRUE(T.isiOS());
-  T.getiOSVersion(Major, Minor, Micro);
-  EXPECT_EQ((unsigned)13, Major);
-  EXPECT_EQ((unsigned)0, Minor);
-  EXPECT_EQ((unsigned)0, Micro);
+  Version = T.getiOSVersion();
+  EXPECT_EQ(VersionTuple(13, 0), Version);
   EXPECT_TRUE(T.getEnvironment() == Triple::MacABI);
   EXPECT_TRUE(T.isMacCatalystEnvironment());
   EXPECT_FALSE(T.isSimulatorEnvironment());
 }
 
+TEST(TripleTest, getEnvironmentVersion) {
+  Triple T;
+  VersionTuple Version;
+
+  T = Triple("arm-unknown-linux-android16");
+  EXPECT_TRUE(T.isAndroid());
+  Version = T.getEnvironmentVersion();
+  EXPECT_EQ(VersionTuple(16), Version);
+  EXPECT_EQ(Triple::Android, T.getEnvironment());
+
+  T = Triple("aarch64-unknown-linux-android21");
+  EXPECT_TRUE(T.isAndroid());
+  Version = T.getEnvironmentVersion();
+  EXPECT_EQ(VersionTuple(21), Version);
+  EXPECT_EQ(Triple::Android, T.getEnvironment());
+}
+
 TEST(TripleTest, isMacOSVersionLT) {
   Triple T = Triple("x86_64-apple-macos11");
   EXPECT_TRUE(T.isMacOSXVersionLT(11, 1, 0));
@@ -1566,6 +1557,15 @@ TEST(TripleTest, NormalizeWindows) {
   EXPECT_TRUE(Triple("x86_64-pc-win32").isWindowsMSVCEnvironment());
 }
 
+TEST(TripleTest, NormalizeAndroid) {
+  EXPECT_EQ("arm-unknown-linux-android16",
+            Triple::normalize("arm-linux-androideabi16"));
+  EXPECT_EQ("armv7a-unknown-linux-android",
+            Triple::normalize("armv7a-linux-androideabi"));
+  EXPECT_EQ("aarch64-unknown-linux-android21",
+            Triple::normalize("aarch64-linux-android21"));
+}
+
 TEST(TripleTest, getARMCPUForArch) {
   // Platform specific defaults.
   {

diff  --git a/llvm/unittests/Support/Host.cpp b/llvm/unittests/Support/Host.cpp
index 0d6e36b0ae7ba..a7a4e093c980c 100644
--- a/llvm/unittests/Support/Host.cpp
+++ b/llvm/unittests/Support/Host.cpp
@@ -366,7 +366,6 @@ TEST(getLinuxHostCPUName, s390x) {
   }
 }
 
-#if defined(__APPLE__) || defined(_AIX)
 static bool runAndGetCommandOutput(
     const char *ExePath, ArrayRef<llvm::StringRef> argv,
     std::unique_ptr<char[]> &Buffer, off_t &Size) {
@@ -406,12 +405,9 @@ TEST_F(HostTest, DummyRunAndGetCommandOutputUse) {
   // disabled.
   (void) runAndGetCommandOutput;
 }
-#endif
 
-#if defined(__APPLE__)
 TEST_F(HostTest, getMacOSHostVersion) {
-  using namespace llvm::sys;
-  llvm::Triple HostTriple(getProcessTriple());
+  llvm::Triple HostTriple(llvm::sys::getProcessTriple());
   if (!HostTriple.isMacOSX())
     return;
 
@@ -420,34 +416,32 @@ TEST_F(HostTest, getMacOSHostVersion) {
   std::unique_ptr<char[]> Buffer;
   off_t Size;
   ASSERT_EQ(runAndGetCommandOutput(SwVersPath, argv, Buffer, Size), true);
-  StringRef SystemVersion(Buffer.get(), Size);
+  StringRef SystemVersionStr(Buffer.get(), Size);
 
   // Ensure that the two versions match.
-  unsigned SystemMajor, SystemMinor, SystemMicro;
-  ASSERT_EQ(llvm::Triple((Twine("x86_64-apple-macos") + SystemVersion))
-                .getMacOSXVersion(SystemMajor, SystemMinor, SystemMicro),
+  VersionTuple SystemVersion;
+  ASSERT_EQ(llvm::Triple((Twine("x86_64-apple-macos") + SystemVersionStr))
+                .getMacOSXVersion(SystemVersion),
             true);
-  unsigned HostMajor, HostMinor, HostMicro;
-  ASSERT_EQ(HostTriple.getMacOSXVersion(HostMajor, HostMinor, HostMicro), true);
+  VersionTuple HostVersion;
+  ASSERT_EQ(HostTriple.getMacOSXVersion(HostVersion), true);
 
-  if (SystemMajor > 10) {
+  if (SystemVersion.getMajor() > 10) {
     // Don't compare the 'Minor' and 'Micro' versions, as they're always '0' for
     // the 'Darwin' triples on 11.x.
-    ASSERT_EQ(SystemMajor, HostMajor);
+    ASSERT_EQ(SystemVersion.getMajor(), HostVersion.getMajor());
   } else {
     // Don't compare the 'Micro' version, as it's always '0' for the 'Darwin'
     // triples.
-    ASSERT_EQ(std::tie(SystemMajor, SystemMinor), std::tie(HostMajor, HostMinor));
+    ASSERT_EQ(SystemVersion.getMajor(), HostVersion.getMajor());
+    ASSERT_EQ(SystemVersion.getMinor(), HostVersion.getMinor());
   }
 }
-#endif
 
-#if defined(_AIX)
 TEST_F(HostTest, AIXVersionDetect) {
-  using namespace llvm::sys;
-
-  llvm::Triple HostTriple(getProcessTriple());
-  ASSERT_EQ(HostTriple.getOS(), Triple::AIX);
+  llvm::Triple HostTriple(llvm::sys::getProcessTriple());
+  if (HostTriple.getOS() != Triple::AIX)
+    return;
 
   llvm::Triple ConfiguredHostTriple(LLVM_HOST_TRIPLE);
   ASSERT_EQ(ConfiguredHostTriple.getOS(), Triple::AIX);
@@ -457,22 +451,21 @@ TEST_F(HostTest, AIXVersionDetect) {
   std::unique_ptr<char[]> Buffer;
   off_t Size;
   ASSERT_EQ(runAndGetCommandOutput(ExePath, argv, Buffer, Size), true);
-  StringRef SystemVersion(Buffer.get(), Size);
+  StringRef SystemVersionStr(Buffer.get(), Size);
 
-  unsigned SystemMajor, SystemMinor, SystemMicro;
-  llvm::Triple((Twine("powerpc-ibm-aix") + SystemVersion))
-      .getOSVersion(SystemMajor, SystemMinor, SystemMicro);
+  VersionTuple SystemVersion =
+      llvm::Triple((Twine("powerpc-ibm-aix") + SystemVersionStr))
+          .getOSVersion();
 
   // Ensure that the host triple version (major) and release (minor) numbers,
   // unless explicitly configured, match with those of the current system.
   if (!ConfiguredHostTriple.getOSMajorVersion()) {
-    unsigned HostMajor, HostMinor, HostMicro;
-    HostTriple.getOSVersion(HostMajor, HostMinor, HostMicro);
-    ASSERT_EQ(std::tie(SystemMajor, SystemMinor),
-              std::tie(HostMajor, HostMinor));
+    VersionTuple HostVersion = HostTriple.getOSVersion();
+    ASSERT_EQ(SystemVersion.getMajor(), HostVersion.getMajor());
+    ASSERT_EQ(SystemVersion.getMinor(), HostVersion.getMinor());
   }
 
-  llvm::Triple TargetTriple(getDefaultTargetTriple());
+  llvm::Triple TargetTriple(llvm::sys::getDefaultTargetTriple());
   if (TargetTriple.getOS() != Triple::AIX)
     return;
 
@@ -482,13 +475,16 @@ TEST_F(HostTest, AIXVersionDetect) {
   if (ConfiguredTargetTriple.getOSMajorVersion())
     return; // The version was configured explicitly; skip.
 
-  unsigned TargetMajor, TargetMinor, TargetMicro;
-  TargetTriple.getOSVersion(TargetMajor, TargetMinor, TargetMicro);
-  ASSERT_EQ(std::tie(SystemMajor, SystemMinor),
-            std::tie(TargetMajor, TargetMinor));
+  VersionTuple TargetVersion = TargetTriple.getOSVersion();
+  ASSERT_EQ(SystemVersion.getMajor(), TargetVersion.getMajor());
+  ASSERT_EQ(SystemVersion.getMinor(), TargetVersion.getMinor());
 }
 
 TEST_F(HostTest, AIXHostCPUDetect) {
+  llvm::Triple HostTriple(llvm::sys::getProcessTriple());
+  if (HostTriple.getOS() != Triple::AIX)
+    return;
+
   // Return a value based on the current processor implementation mode.
   const char *ExePath = "/usr/sbin/getsystype";
   StringRef argv[] = {ExePath, "-i"};
@@ -516,4 +512,3 @@ TEST_F(HostTest, AIXHostCPUDetect) {
 
   EXPECT_EQ(HostCPU, MCPU);
 }
-#endif


        


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