Index: lib/Driver/ToolChains/Darwin.cpp
===================================================================
--- lib/Driver/ToolChains/Darwin.cpp
+++ lib/Driver/ToolChains/Darwin.cpp
@@ -1233,6 +1233,10 @@
     llvm_unreachable("Unsupported Darwin Source Kind");
   }
 
+  static DarwinPlatform createFromTarget(llvm::Triple::OSType OS,
+                                         StringRef OSVersion, Arg *A) {
+    return DarwinPlatform(TargetArg, getPlatformFromOS(OS), OSVersion, A);
+  }
   static DarwinPlatform createOSVersionArg(DarwinPlatformKind Platform,
                                            Arg *A) {
     return DarwinPlatform(OSVersionArg, Platform, A);
@@ -1250,33 +1254,32 @@
   }
   static DarwinPlatform createFromArch(llvm::Triple::OSType OS,
                                        StringRef Value) {
-    DarwinPlatformKind Platform;
+    return DarwinPlatform(InferredFromArch, getPlatformFromOS(OS), Value);
+  }
+
+private:
+  DarwinPlatform(SourceKind Kind, DarwinPlatformKind Platform, Arg *Argument)
+      : Kind(Kind), Platform(Platform), Argument(Argument) {}
+  DarwinPlatform(SourceKind Kind, DarwinPlatformKind Platform, StringRef Value,
+                 Arg *Argument = nullptr)
+      : Kind(Kind), Platform(Platform), OSVersion(Value), Argument(Argument) {}
+
+  static DarwinPlatformKind getPlatformFromOS(llvm::Triple::OSType OS) {
     switch (OS) {
     case llvm::Triple::Darwin:
     case llvm::Triple::MacOSX:
-      Platform = DarwinPlatformKind::MacOS;
-      break;
+      return DarwinPlatformKind::MacOS;
     case llvm::Triple::IOS:
-      Platform = DarwinPlatformKind::IPhoneOS;
-      break;
+      return DarwinPlatformKind::IPhoneOS;
     case llvm::Triple::TvOS:
-      Platform = DarwinPlatformKind::TvOS;
-      break;
+      return DarwinPlatformKind::TvOS;
     case llvm::Triple::WatchOS:
-      Platform = DarwinPlatformKind::WatchOS;
-      break;
+      return DarwinPlatformKind::WatchOS;
     default:
       llvm_unreachable("Unable to infer Darwin variant");
     }
-    return DarwinPlatform(InferredFromArch, Platform, Value);
   }
 
-private:
-  DarwinPlatform(SourceKind Kind, DarwinPlatformKind Platform, Arg *Argument)
-      : Kind(Kind), Platform(Platform), Argument(Argument) {}
-  DarwinPlatform(SourceKind Kind, DarwinPlatformKind Platform, StringRef Value)
-      : Kind(Kind), Platform(Platform), OSVersion(Value), Argument(nullptr) {}
-
   SourceKind Kind;
   DarwinPlatformKind Platform;
   std::string OSVersion;
@@ -1449,20 +1452,15 @@
                               const Driver &TheDriver) {
   llvm::Triple::OSType OSTy = llvm::Triple::UnknownOS;
 
-  // Set the OSTy based on -target if -arch isn't present.
-  if (Args.hasArg(options::OPT_target) && !Args.hasArg(options::OPT_arch)) {
-    OSTy = Triple.getOS();
-  } else {
-    StringRef MachOArchName = Toolchain.getMachOArchName(Args);
-    if (MachOArchName == "armv7" || MachOArchName == "armv7s" ||
-        MachOArchName == "arm64")
-      OSTy = llvm::Triple::IOS;
-    else if (MachOArchName == "armv7k")
-      OSTy = llvm::Triple::WatchOS;
-    else if (MachOArchName != "armv6m" && MachOArchName != "armv7m" &&
-             MachOArchName != "armv7em")
-      OSTy = llvm::Triple::MacOSX;
-  }
+  StringRef MachOArchName = Toolchain.getMachOArchName(Args);
+  if (MachOArchName == "armv7" || MachOArchName == "armv7s" ||
+      MachOArchName == "arm64")
+    OSTy = llvm::Triple::IOS;
+  else if (MachOArchName == "armv7k")
+    OSTy = llvm::Triple::WatchOS;
+  else if (MachOArchName != "armv6m" && MachOArchName != "armv7m" &&
+           MachOArchName != "armv7em")
+    OSTy = llvm::Triple::MacOSX;
 
   if (OSTy == llvm::Triple::UnknownOS)
     return None;
@@ -1470,6 +1468,19 @@
                                         getOSVersion(OSTy, Triple, TheDriver));
 }
 
+/// Returns the deployment target that's specified using the -target option.
+Optional<DarwinPlatform> getDeploymentTargetFromTargetArg(
+    DerivedArgList &Args, const llvm::Triple &Triple, const Driver &TheDriver) {
+  if (!Args.hasArg(options::OPT_target))
+    return None;
+  if (Triple.getOS() == llvm::Triple::Darwin ||
+      Triple.getOS() == llvm::Triple::UnknownOS)
+    return None;
+  std::string OSVersion = getOSVersion(Triple.getOS(), Triple, TheDriver);
+  return DarwinPlatform::createFromTarget(Triple.getOS(), OSVersion,
+                                          Args.getLastArg(options::OPT_target));
+}
+
 } // namespace
 
 void Darwin::AddDeploymentTarget(DerivedArgList &Args) const {
@@ -1494,24 +1505,35 @@
     }
   }
 
-  // The OS target can be specified using the -m<os>version-min argument.
+  // The OS and the version can be specified using the -target argument.
   Optional<DarwinPlatform> OSTarget =
-      getDeploymentTargetFromOSVersionArg(Args, getDriver());
-  // If no deployment target was specified on the command line, check for
-  // environment defines.
-  if (!OSTarget)
-    OSTarget =
-        getDeploymentTargetFromEnvironmentVariables(getDriver(), getTriple());
-  // If there is no command-line argument to specify the Target version and
-  // no environment variable defined, see if we can set the default based
-  // on -isysroot.
-  if (!OSTarget)
-    OSTarget = inferDeploymentTargetFromSDK(Args);
-  // If no OS targets have been specified, try to guess platform from -target
-  // or arch name and compute the version from the triple.
-  if (!OSTarget)
-    OSTarget =
-        inferDeploymentTargetFromArch(Args, *this, getTriple(), getDriver());
+      getDeploymentTargetFromTargetArg(Args, getTriple(), getDriver());
+  if (OSTarget) {
+    // Warn about superfluous -m<os>-version-min arg.
+    Optional<DarwinPlatform> OSVersionArgTarget =
+        getDeploymentTargetFromOSVersionArg(Args, getDriver());
+    if (OSVersionArgTarget)
+      getDriver().Diag(clang::diag::warn_drv_unused_argument)
+          << OSVersionArgTarget->getAsString(Args, Opts);
+  } else {
+    // The OS target can be specified using the -m<os>version-min argument.
+    OSTarget = getDeploymentTargetFromOSVersionArg(Args, getDriver());
+    // If no deployment target was specified on the command line, check for
+    // environment defines.
+    if (!OSTarget)
+      OSTarget =
+          getDeploymentTargetFromEnvironmentVariables(getDriver(), getTriple());
+    // If there is no command-line argument to specify the Target version and
+    // no environment variable defined, see if we can set the default based
+    // on -isysroot.
+    if (!OSTarget)
+      OSTarget = inferDeploymentTargetFromSDK(Args);
+    // If no OS targets have been specified, try to guess platform from -target
+    // or arch name and compute the version from the triple.
+    if (!OSTarget)
+      OSTarget =
+          inferDeploymentTargetFromArch(Args, *this, getTriple(), getDriver());
+  }
 
   assert(OSTarget && "Unable to infer Darwin variant");
   OSTarget->addOSVersionMinArgument(Args, Opts);
Index: test/Driver/darwin-version.c
===================================================================
--- test/Driver/darwin-version.c
+++ test/Driver/darwin-version.c
@@ -12,11 +12,15 @@
 // CHECK-VERSION-IOS3: "armv6k-apple-ios3.0.0"
 
 // RUN: env IPHONEOS_DEPLOYMENT_TARGET=11.0 \
-// RUN:   %clang -target armv7-apple-ios9.0 -c -### %s 2> %t.err
+// RUN:   %clang -target armv7-apple-darwin -c -### %s 2> %t.err
 // RUN:   FileCheck --input-file=%t.err --check-prefix=CHECK-VERSION-IOS4 %s
 // CHECK-VERSION-IOS4: invalid iOS deployment version 'IPHONEOS_DEPLOYMENT_TARGET=11.0'
 
-// RUN: %clang -target armv7-apple-ios9.0 -miphoneos-version-min=11.0 -c -### %s 2> %t.err
+// RUN: %clang -target armv7-apple-ios11.0 -c -### %s 2> %t.err
+// RUN: FileCheck --input-file=%t.err --check-prefix=CHECK-VERSION-IOS41 %s
+// CHECK-VERSION-IOS41: invalid iOS deployment version '--target=armv7-apple-ios11.0'
+
+// RUN: %clang -target armv7-apple-darwin -miphoneos-version-min=11.0 -c -### %s 2> %t.err
 // RUN: FileCheck --input-file=%t.err --check-prefix=CHECK-VERSION-IOS5 %s
 // CHECK-VERSION-IOS5: invalid iOS deployment version '-miphoneos-version-min=11.0'
 
@@ -25,13 +29,14 @@
 // CHECK-VERSION-IOS6: invalid iOS deployment version '-mios-simulator-version-min=11.0'
 
 // RUN: %clang -target armv7-apple-ios11.1 -c -### %s 2>&1 | \
-// RUN: FileCheck --check-prefix=CHECK-VERSION-IOS7 %s
-// RUN: %clang -target armv7-apple-ios9 -Wno-missing-sysroot -isysroot SDKs/iPhoneOS11.0.sdk -c -### %s 2>&1 | \
+// RUN: FileCheck --check-prefix=CHECK-VERSION-IOS71 %s
+// CHECK-VERSION-IOS71: invalid iOS deployment version
+// RUN: %clang -target armv7-apple-darwin -Wno-missing-sysroot -isysroot SDKs/iPhoneOS11.0.sdk -c -### %s 2>&1 | \
 // RUN: FileCheck --check-prefix=CHECK-VERSION-IOS7 %s
 // CHECK-VERSION-IOS7: thumbv7-apple-ios10.99.99
 
 // RUN: env IPHONEOS_DEPLOYMENT_TARGET=11.0 \
-// RUN:   %clang -target arm64-apple-ios11.0 -c -### %s 2>&1 | \
+// RUN:   %clang -target arm64-apple-darwin -c -### %s 2>&1 | \
 // RUN:   FileCheck --check-prefix=CHECK-VERSION-IOS8 %s
 // CHECK-VERSION-IOS8: arm64-apple-ios11.0.0
 
@@ -49,7 +54,7 @@
 
 // RUN: %clang -target armv7-apple-ios9.0 -miphoneos-version-min=11.0 -c -Wno-invalid-ios-deployment-target -### %s 2>&1 | \
 // RUN: FileCheck --check-prefix=CHECK-VERSION-IOS12 %s
-// CHECK-VERSION-IOS12: thumbv7-apple-ios11.0.0
+// CHECK-VERSION-IOS12: thumbv7-apple-ios9.0.0
 
 // RUN: %clang -target i686-apple-darwin8 -c %s -### 2>&1 | \
 // RUN:   FileCheck --check-prefix=CHECK-VERSION-OSX4 %s
@@ -68,14 +73,14 @@
 // CHECK-VERSION-OSX6: "i386-apple-macosx10.6.0"
 // RUN: %clang -target x86_64-apple-darwin14 -c %s -### 2>&1 | \
 // RUN:   FileCheck --check-prefix=CHECK-VERSION-OSX10 %s
-// RUN: %clang -target x86_64-apple-macosx -mmacosx-version-min=10.10 -c %s -### 2>&1 | \
+// RUN: %clang -target x86_64-apple-darwin -mmacosx-version-min=10.10 -c %s -### 2>&1 | \
 // RUN:   FileCheck --check-prefix=CHECK-VERSION-OSX10 %s
-// RUN: %clang -target x86_64-apple-macosx -mmacos-version-min=10.10 -c %s -### 2>&1 | \
+// RUN: %clang -target x86_64-apple-darwin -mmacos-version-min=10.10 -c %s -### 2>&1 | \
 // RUN:   FileCheck --check-prefix=CHECK-VERSION-OSX10 %s
 // CHECK-VERSION-OSX10: "x86_64-apple-macosx10.10.0"
-// RUN: %clang -target x86_64-apple-macosx -mmacosx-version-min= -c %s -### 2>&1 | \
+// RUN: %clang -target x86_64-apple-darwin -mmacosx-version-min= -c %s -### 2>&1 | \
 // RUN:   FileCheck --check-prefix=CHECK-VERSION-MISSING %s
-// RUN: %clang -target x86_64-apple-macosx -mmacos-version-min= -c %s -### 2>&1 | \
+// RUN: %clang -target x86_64-apple-darwin -mmacos-version-min= -c %s -### 2>&1 | \
 // RUN:   FileCheck --check-prefix=CHECK-VERSION-MISSING %s
 // CHECK-VERSION-MISSING: invalid version number
 // RUN: %clang -target armv7k-apple-darwin -mwatchos-version-min=2.0 -c %s -### 2>&1 | \
@@ -144,3 +149,116 @@
 // RUN:   %clang -target x86_64-apple-darwin -c %s -### 2>&1 | \
 // RUN:   FileCheck --check-prefix=CHECK-VERSION-INVALID-ENV %s
 // CHECK-VERSION-INVALID-ENV: invalid version number in 'MACOSX_DEPLOYMENT_TARGET=1000.1000'
+
+
+
+// Target can specify the OS version:
+
+// RUN: %clang -target x86_64-apple-macos10.11.2 -c %s -### 2>&1 | \
+// RUN:   FileCheck --check-prefix=CHECK-VERSION-TMAC2 %s
+// CHECK-VERSION-TMAC2: "x86_64-apple-macosx10.11.2"
+
+// RUN: %clang -target arm64-apple-ios11.1 -c %s -### 2>&1 | \
+// RUN:   FileCheck --check-prefix=CHECK-VERSION-TIOS1 %s
+// CHECK-VERSION-TIOS1: "arm64-apple-ios11.1.0"
+
+// RUN: %clang -target arm64-apple-tvos10.3 -c %s -### 2>&1 | \
+// RUN:   FileCheck --check-prefix=CHECK-VERSION-TTVOS1 %s
+// CHECK-VERSION-TTVOS1: "arm64-apple-tvos10.3.0"
+
+// RUN: %clang -target armv7k-apple-watchos4.1 -c %s -### 2>&1 | \
+// RUN:   FileCheck --check-prefix=CHECK-VERSION-TWATCHOS1 %s
+// CHECK-VERSION-TWATCHOS1: "thumbv7k-apple-watchos4.1.0"
+
+// "darwin" always back to the -m<os>version-min and environment:
+
+// RUN: %clang -target x86_64-apple-darwin14 -c %s -### 2>&1 | \
+// RUN:   FileCheck --check-prefix=CHECK-VERSION-TDARWIN-FALL1 %s
+// CHECK-VERSION-TDARWIN-FALL1: "x86_64-apple-macosx10.10.0"
+
+// RUN: %clang -target x86_64-apple-darwin14 -miphoneos-version-min=10.1 -c %s -### 2>&1 | \
+// RUN:   FileCheck --check-prefix=CHECK-VERSION-TDARWIN-FALL2 %s
+// CHECK-VERSION-TDARWIN-FALL2: "x86_64-apple-ios10.1.0-simulator"
+
+// RUN: env IPHONEOS_DEPLOYMENT_TARGET=9.1 \
+// RUN:   %clang -target arm64-apple-darwin14 -c %s -### 2>&1 | \
+// RUN:   FileCheck --check-prefix=CHECK-VERSION-TDARWIN-FALL3 %s
+// CHECK-VERSION-TDARWIN-FALL3: "arm64-apple-ios9.1.0"
+
+// RUN: %clang -target arm64-apple-darwin14 -isysroot SDKs/iPhoneOS11.0.sdk -c %s -### 2>&1 | \
+// RUN:   FileCheck --check-prefix=CHECK-VERSION-TDARWIN-FALL4 %s
+// CHECK-VERSION-TDARWIN-FALL4: "arm64-apple-ios11.0.0"
+
+// RUN: %clang -target unknown-apple-darwin12  -arch armv7  -c %s -### 2>&1 | \
+// RUN:   FileCheck --check-prefix=CHECK-VERSION-TDARWIN-FALL5 %s
+// CHECK-VERSION-TDARWIN-FALL5: "thumbv7-apple-ios5.0.0"
+
+// Warn about -m<os>-version-min when it's used with target:
+
+// RUN: %clang -target x86_64-apple-macos10.11.2 -mmacos-version-min=10.6 -c %s -### 2>&1 | \
+// RUN:   FileCheck --check-prefix=CHECK-VERSION-TNO-OSV1 %s
+// CHECK-VERSION-TNO-OSV1: argument unused during compilation: '-mmacosx-version-min=10.6'
+
+// RUN: %clang -target x86_64-apple-macos -miphoneos-version-min=9.1 -c %s -### 2>&1 | \
+// RUN:   FileCheck --check-prefix=CHECK-VERSION-TNO-OSV2 %s
+// CHECK-VERSION-TNO-OSV2: argument unused during compilation: '-miphoneos-version-min=9.1'
+
+// Target with OS version is not overriden by -m<os>-version-min variables:
+
+// RUN: %clang -target x86_64-apple-macos10.11.2 -mmacos-version-min=10.6 -c %s -### 2>&1 | \
+// RUN:   FileCheck --check-prefix=CHECK-VERSION-TIGNORE-OSV1 %s
+// CHECK-VERSION-TIGNORE-OSV1: "x86_64-apple-macosx10.11.2"
+
+// RUN: %clang -target arm64-apple-ios11.0 -mios-version-min=9.0 -c %s -### 2>&1 | \
+// RUN:   FileCheck --check-prefix=CHECK-VERSION-TIGNORE-OSV2 %s
+// CHECK-VERSION-TIGNORE-OSV2: "arm64-apple-ios11.0.0"
+
+// RUN: %clang -target arm64-apple-tvos11.0 -mtvos-version-min=9.0 -c %s -### 2>&1 | \
+// RUN:   FileCheck --check-prefix=CHECK-VERSION-TIGNORE-OSV3 %s
+// CHECK-VERSION-TIGNORE-OSV3: "arm64-apple-tvos11.0.0"
+
+// RUN: %clang -target armv7k-apple-watchos3 -mwatchos-version-min=4 -c %s -### 2>&1 | \
+// RUN:   FileCheck --check-prefix=CHECK-VERSION-TIGNORE-OSV4 %s
+// CHECK-VERSION-TIGNORE-OSV4: "thumbv7k-apple-watchos3.0.0"
+
+// Target with OS version is not overriden by environment variables:
+
+// RUN: env MACOSX_DEPLOYMENT_TARGET=10.1 \
+// RUN:   %clang -target i386-apple-macos10.5 -c %s -### 2>&1 | \
+// RUN:   FileCheck --check-prefix=CHECK-VERSION-TMACOS-CMD %s
+// CHECK-VERSION-TMACOS-CMD: "i386-apple-macosx10.5.0"
+
+// RUN: env IPHONEOS_DEPLOYMENT_TARGET=10.1 \
+// RUN:   %clang -target arm64-apple-ios11 -c %s -### 2>&1 | \
+// RUN:   FileCheck --check-prefix=CHECK-VERSION-TIOS-CMD %s
+// CHECK-VERSION-TIOS-CMD: "arm64-apple-ios11.0.0"
+
+// RUN: env TVOS_DEPLOYMENT_TARGET=8.3.1 \
+// RUN:   %clang -target arm64-apple-tvos9 -c %s -### 2>&1 | \
+// RUN:   FileCheck --check-prefix=CHECK-VERSION-TTVOS-CMD %s
+// CHECK-VERSION-TTVOS-CMD: "arm64-apple-tvos9.0.0"
+
+// RUN: env WATCHOS_DEPLOYMENT_TARGET=2 \
+// RUN:   %clang -target armv7k-apple-watchos3 -c %s -### 2>&1 | \
+// RUN:   FileCheck --check-prefix=CHECK-VERSION-TWATCHOS-CMD %s
+// CHECK-VERSION-TWATCHOS-CMD: "thumbv7k-apple-watchos3.0.0"
+
+// Target with OS version is not overriden by the SDK:
+
+// RUN: %clang -target armv7-apple-ios9 -Wno-missing-sysroot -isysroot SDKs/iPhoneOS11.0.sdk -c -### %s 2>&1 | \
+// RUN: FileCheck --check-prefix=CHECK-VERSION-TIOS-SDK %s
+// CHECK-VERSION-TIOS-SDK: thumbv7-apple-ios9
+
+// RUN: %clang -target armv7k-apple-watchos4 -Wno-missing-sysroot -isysroot SDKs/WatchOS3.0.sdk -c -### %s 2>&1 | \
+// RUN: FileCheck --check-prefix=CHECK-VERSION-TWATCHOS-SDK %s
+// CHECK-VERSION-TWATCHOS-SDK: thumbv7k-apple-watchos4
+
+// RUN: %clang -target armv7-apple-tvos9 -Wno-missing-sysroot -isysroot SDKs/AppleTVOS11.0.sdk -c -### %s 2>&1 | \
+// RUN: FileCheck --check-prefix=CHECK-VERSION-TTVOS-SDK %s
+// CHECK-VERSION-TTVOS-SDK: thumbv7-apple-tvos9
+
+// Target with OS version is not overriden by arch:
+
+// RUN: %clang -target uknown-apple-macos10.11.2 -arch=armv7k -c %s -### 2>&1 | \
+// RUN:   FileCheck --check-prefix=CHECK-VERSION-TIGNORE-ARCH1 %s
+// CHECK-VERSION-TIGNORE-ARCH1: "unknown-apple-macosx10.11.2"
Index: test/Driver/objc-weak.m
===================================================================
--- test/Driver/objc-weak.m
+++ test/Driver/objc-weak.m
@@ -1,27 +1,27 @@
 // Check miscellaneous Objective-C options.
 
-// RUN: %clang -target x86_64-apple-macosx -mmacosx-version-min=10.7 -S -### %s -fobjc-arc -fobjc-weak 2>&1 | FileCheck %s --check-prefix ARC-WEAK
-// RUN: %clang -target x86_64-apple-macosx -mmacosx-version-min=10.7 -S -### %s -fno-objc-weak -fobjc-weak -fobjc-arc  2>&1 | FileCheck %s --check-prefix ARC-WEAK
+// RUN: %clang -target x86_64-apple-macosx10.7 -S -### %s -fobjc-arc -fobjc-weak 2>&1 | FileCheck %s --check-prefix ARC-WEAK
+// RUN: %clang -target x86_64-apple-macosx10.7 -S -### %s -fno-objc-weak -fobjc-weak -fobjc-arc  2>&1 | FileCheck %s --check-prefix ARC-WEAK
 // ARC-WEAK: -fobjc-arc
 // ARC-WEAK: -fobjc-weak
 
-// RUN: %clang -target x86_64-apple-macosx -mmacosx-version-min=10.7 -S -### %s -fobjc-arc -fno-objc-weak 2>&1 | FileCheck %s --check-prefix ARC-NO-WEAK
-// RUN: %clang -target x86_64-apple-macosx -mmacosx-version-min=10.7 -S -### %s -fobjc-weak -fno-objc-weak -fobjc-arc  2>&1 | FileCheck %s --check-prefix ARC-NO-WEAK
+// RUN: %clang -target x86_64-apple-macos10.7 -S -### %s -fobjc-arc -fno-objc-weak 2>&1 | FileCheck %s --check-prefix ARC-NO-WEAK
+// RUN: %clang -target x86_64-apple-macos10.7 -S -### %s -fobjc-weak -fno-objc-weak -fobjc-arc  2>&1 | FileCheck %s --check-prefix ARC-NO-WEAK
 // ARC-NO-WEAK: -fobjc-arc
 // ARC-NO-WEAK: -fno-objc-weak
 
-// RUN: %clang -target x86_64-apple-macosx -mmacosx-version-min=10.5 -S -### %s -fobjc-arc -fobjc-weak 2>&1 | FileCheck %s --check-prefix ARC-WEAK-NOTSUPPORTED
-// RUN: %clang -target x86_64-apple-macosx -mmacosx-version-min=10.5 -S -### %s -fno-objc-weak -fobjc-weak -fobjc-arc  2>&1 | FileCheck %s --check-prefix ARC-WEAK-NOTSUPPORTED
+// RUN: %clang -target x86_64-apple-macosx10.5 -S -### %s -fobjc-arc -fobjc-weak 2>&1 | FileCheck %s --check-prefix ARC-WEAK-NOTSUPPORTED
+// RUN: %clang -target x86_64-apple-macosx10.5 -S -### %s -fno-objc-weak -fobjc-weak -fobjc-arc  2>&1 | FileCheck %s --check-prefix ARC-WEAK-NOTSUPPORTED
 // ARC-WEAK-NOTSUPPORTED: error: -fobjc-weak is not supported on the current deployment target
 
-// RUN: %clang -target x86_64-apple-macosx -mmacosx-version-min=10.7 -S -### %s -fobjc-weak 2>&1 | FileCheck %s --check-prefix MRC-WEAK
-// RUN: %clang -target x86_64-apple-macosx -mmacosx-version-min=10.7 -S -### %s -fno-objc-weak -fobjc-weak 2>&1 | FileCheck %s --check-prefix MRC-WEAK
+// RUN: %clang -target x86_64-apple-macos10.7 -S -### %s -fobjc-weak 2>&1 | FileCheck %s --check-prefix MRC-WEAK
+// RUN: %clang -target x86_64-apple-macos10.7 -S -### %s -fno-objc-weak -fobjc-weak 2>&1 | FileCheck %s --check-prefix MRC-WEAK
 // MRC-WEAK: -fobjc-weak
 
-// RUN: %clang -target x86_64-apple-macosx -mmacosx-version-min=10.7 -S -### %s -fno-objc-weak 2>&1 | FileCheck %s --check-prefix MRC-NO-WEAK
-// RUN: %clang -target x86_64-apple-macosx -mmacosx-version-min=10.7 -S -### %s -fobjc-weak -fno-objc-weak 2>&1 | FileCheck %s --check-prefix MRC-NO-WEAK
+// RUN: %clang -target x86_64-apple-macosx10.7 -S -### %s -fno-objc-weak 2>&1 | FileCheck %s --check-prefix MRC-NO-WEAK
+// RUN: %clang -target x86_64-apple-macosx10.7 -S -### %s -fobjc-weak -fno-objc-weak 2>&1 | FileCheck %s --check-prefix MRC-NO-WEAK
 // MRC-NO-WEAK: -fno-objc-weak
 
-// RUN: %clang -target x86_64-apple-macosx -mmacosx-version-min=10.5 -S -### %s -fobjc-weak 2>&1 | FileCheck %s --check-prefix MRC-WEAK-NOTSUPPORTED
-// RUN: %clang -target x86_64-apple-macosx -mmacosx-version-min=10.5 -S -### %s -fno-objc-weak -fobjc-weak 2>&1 | FileCheck %s --check-prefix MRC-WEAK-NOTSUPPORTED
+// RUN: %clang -target x86_64-apple-macosx10.5 -S -### %s -fobjc-weak 2>&1 | FileCheck %s --check-prefix MRC-WEAK-NOTSUPPORTED
+// RUN: %clang -target x86_64-apple-macosx10.5 -S -### %s -fno-objc-weak -fobjc-weak 2>&1 | FileCheck %s --check-prefix MRC-WEAK-NOTSUPPORTED
 // MRC-WEAK-NOTSUPPORTED: error: -fobjc-weak is not supported on the current deployment target
Index: test/Driver/pic.c
===================================================================
--- test/Driver/pic.c
+++ test/Driver/pic.c
@@ -221,19 +221,19 @@
 //
 // Checks for ARM+Apple+IOS including -fapple-kext, -mkernel, and iphoneos
 // version boundaries.
-// RUN: %clang -c %s -target armv7-apple-ios -fapple-kext -miphoneos-version-min=6.0.0 -### 2>&1 \
+// RUN: %clang -c %s -target armv7-apple-ios6 -fapple-kext -### 2>&1 \
 // RUN:   | FileCheck %s --check-prefix=CHECK-PIC2
-// RUN: %clang -c %s -target armv7-apple-ios -mkernel -miphoneos-version-min=6.0.0 -### 2>&1 \
+// RUN: %clang -c %s -target armv7-apple-ios6 -mkernel -### 2>&1 \
 // RUN:   | FileCheck %s --check-prefix=CHECK-PIC2
-// RUN: %clang -c %s -target arm64-apple-ios -mkernel -miphoneos-version-min=7.0.0 -### 2>&1 \
+// RUN: %clang -c %s -target arm64-apple-ios7 -mkernel -### 2>&1 \
 // RUN:   | FileCheck %s --check-prefix=CHECK-PIC2
-// RUN: %clang -x assembler -c %s -target arm64-apple-ios -mkernel -miphoneos-version-min=7.0.0 -no-integrated-as -### 2>&1 \
+// RUN: %clang -x assembler -c %s -target arm64-apple-ios7 -mkernel -no-integrated-as -### 2>&1 \
 // RUN:   | FileCheck %s --check-prefix=CHECK-NO-STATIC
-// RUN: %clang -c %s -target armv7k-apple-watchos -fapple-kext -mwatchos-version-min=1.0.0 -### 2>&1 \
+// RUN: %clang -c %s -target armv7k-apple-watchos1 -fapple-kext -### 2>&1 \
 // RUN:   | FileCheck %s --check-prefix=CHECK-PIC2
-// RUN: %clang -c %s -target armv7-apple-ios -fapple-kext -miphoneos-version-min=5.0.0 -### 2>&1 \
+// RUN: %clang -c %s -target armv7-apple-ios5 -fapple-kext -### 2>&1 \
 // RUN:   | FileCheck %s --check-prefix=CHECK-NO-PIC
-// RUN: %clang -c %s -target armv7-apple-ios -fapple-kext -miphoneos-version-min=6.0.0 -static -### 2>&1 \
+// RUN: %clang -c %s -target armv7-apple-ios6 -fapple-kext -static -### 2>&1 \
 // RUN:   | FileCheck %s --check-prefix=CHECK-NO-PIC
 // RUN: %clang -c %s -target armv7-apple-unknown-macho -static -### 2>&1 \
 // RUN:   | FileCheck %s --check-prefix=CHECK-NO-PIC
Index: test/Driver/unavailable_aligned_allocation.cpp
===================================================================
--- test/Driver/unavailable_aligned_allocation.cpp
+++ test/Driver/unavailable_aligned_allocation.cpp
@@ -10,15 +10,15 @@
 // RUN: %clang -target thumbv7-apple-watchos3 -c -### %s 2>&1 \
 // RUN:   | FileCheck %s -check-prefix=UNAVAILABLE
 //
-// RUN: %clang -target x86_64-apple-macosx10.13 -mios-simulator-version-min=10 \
+// RUN: %clang -target x86_64-apple-darwin -mios-simulator-version-min=10 \
 // RUN:  -c -### %s 2>&1 \
 // RUN:   | FileCheck %s -check-prefix=UNAVAILABLE
 //
-// RUN: %clang -target x86_64-apple-macosx10.13 -mtvos-simulator-version-min=10 \
+// RUN: %clang -target x86_64-apple-darwin -mtvos-simulator-version-min=10 \
 // RUN: -c -### %s 2>&1 \
 // RUN:   | FileCheck %s -check-prefix=UNAVAILABLE
 //
-// RUN: %clang -target x86_64-apple-macosx10.13 -mwatchos-simulator-version-min=3 \
+// RUN: %clang -target x86_64-apple-darwin -mwatchos-simulator-version-min=3 \
 // RUN: -c -### %s 2>&1 \
 // RUN:   | FileCheck %s -check-prefix=UNAVAILABLE
 //
@@ -39,15 +39,15 @@
 // RUN: %clang -target x86_64-unknown-linux-gnu -c -### %s 2>&1 \
 // RUN:   | FileCheck %s -check-prefix=AVAILABLE
 //
-// RUN: %clang -target x86_64-apple-macosx10.12 -mios-simulator-version-min=11 \
+// RUN: %clang -target x86_64-apple-darwin -mios-simulator-version-min=11 \
 // RUN:  -c -### %s 2>&1 \
 // RUN:   | FileCheck %s -check-prefix=AVAILABLE
 //
-// RUN: %clang -target x86_64-apple-macosx10.12 -mtvos-simulator-version-min=11 \
+// RUN: %clang -target x86_64-apple-darwin -mtvos-simulator-version-min=11 \
 // RUN: -c -### %s 2>&1 \
 // RUN:   | FileCheck %s -check-prefix=AVAILABLE
 //
-// RUN: %clang -target x86_64-apple-macosx10.12 -mwatchos-simulator-version-min=4 \
+// RUN: %clang -target x86_64-apple-darwin -mwatchos-simulator-version-min=4 \
 // RUN: -c -### %s 2>&1 \
 // RUN:   | FileCheck %s -check-prefix=AVAILABLE
 //