Index: lib/Basic/Targets.cpp
===================================================================
--- lib/Basic/Targets.cpp
+++ lib/Basic/Targets.cpp
@@ -3698,19 +3698,29 @@
         T.getOS() != llvm::Triple::Bitrig)
       return false;
     StringRef ArchName = T.getArchName();
-    if (T.getArch() == llvm::Triple::arm) {
-      if (!ArchName.startswith("armv"))
+    if (T.getArch() == llvm::Triple::arm ||
+        T.getArch() == llvm::Triple::armeb) {
+      StringRef VersionStr;
+      if (ArchName.startswith("armv"))
+        VersionStr = ArchName.substr(4);
+      else if (ArchName.startswith("armebv"))
+        VersionStr = ArchName.substr(6);
+      else
         return false;
-      StringRef VersionStr = ArchName.substr(4);
       unsigned Version;
       if (VersionStr.getAsInteger(10, Version))
         return false;
       return Version >= 6;
     }
-    assert(T.getArch() == llvm::Triple::thumb);
-    if (!ArchName.startswith("thumbv"))
+    assert(T.getArch() == llvm::Triple::thumb ||
+           T.getArch() == llvm::Triple::thumbeb);
+    StringRef VersionStr;
+    if (ArchName.startswith("thumbv"))
+      VersionStr = ArchName.substr(6);
+    else if (ArchName.startswith("thumbebv"))
+      VersionStr = ArchName.substr(8);
+    else
       return false;
-    StringRef VersionStr = ArchName.substr(6);
     unsigned Version;
     if (VersionStr.getAsInteger(10, Version))
       return false;
@@ -3744,17 +3754,27 @@
       // Thumb1 add sp, #imm requires the immediate value be multiple of 4,
       // so set preferred for small types to 32.
       if (T.isOSBinFormatMachO())
-        DescriptionString = "e-m:o-p:32:32-i1:8:32-i8:8:32-i16:16:32-i64:64-"
-                            "v128:64:128-a:0:32-n32-S64";
+        DescriptionString = BigEndian ?
+                              "E-m:o-p:32:32-i1:8:32-i8:8:32-i16:16:32-i64:64-"
+                              "v128:64:128-a:0:32-n32-S64" :
+                              "e-m:o-p:32:32-i1:8:32-i8:8:32-i16:16:32-i64:64-"
+                              "v128:64:128-a:0:32-n32-S64";
       else
-        DescriptionString = "e-m:e-p:32:32-i1:8:32-i8:8:32-i16:16:32-i64:64-"
-                            "v128:64:128-a:0:32-n32-S64";
+        DescriptionString = BigEndian ?
+                              "E-m:e-p:32:32-i1:8:32-i8:8:32-i16:16:32-i64:64-"
+                              "v128:64:128-a:0:32-n32-S64" :
+                              "e-m:e-p:32:32-i1:8:32-i8:8:32-i16:16:32-i64:64-"
+                              "v128:64:128-a:0:32-n32-S64";
 
     } else {
       if (T.isOSBinFormatMachO())
-        DescriptionString = "e-m:o-p:32:32-i64:64-v128:64:128-n32-S64";
+        DescriptionString = BigEndian ?
+                              "E-m:o-p:32:32-i64:64-v128:64:128-n32-S64" :
+                              "e-m:o-p:32:32-i64:64-v128:64:128-n32-S64";
       else
-        DescriptionString = "e-m:e-p:32:32-i64:64-v128:64:128-n32-S64";
+        DescriptionString = BigEndian ?
+                              "E-m:e-p:32:32-i64:64-v128:64:128-n32-S64" :
+                              "e-m:e-p:32:32-i64:64-v128:64:128-n32-S64";
     }
 
     // FIXME: Enumerated types are variable width in straight AAPCS.
@@ -3789,17 +3809,25 @@
       // Thumb1 add sp, #imm requires the immediate value be multiple of 4,
       // so set preferred for small types to 32.
       if (T.isOSBinFormatMachO())
-        DescriptionString = "e-m:o-p:32:32-i1:8:32-i8:8:32-i16:16:32-f64:32:64"
-                            "-v64:32:64-v128:32:128-a:0:32-n32-S32";
+        DescriptionString = BigEndian ?
+            "E-m:o-p:32:32-i1:8:32-i8:8:32-i16:16:32-f64:32:64"
+            "-v64:32:64-v128:32:128-a:0:32-n32-S32" :
+            "e-m:o-p:32:32-i1:8:32-i8:8:32-i16:16:32-f64:32:64"
+            "-v64:32:64-v128:32:128-a:0:32-n32-S32";
       else
-        DescriptionString = "e-m:e-p:32:32-i1:8:32-i8:8:32-i16:16:32-f64:32:64"
-                            "-v64:32:64-v128:32:128-a:0:32-n32-S32";
+        DescriptionString = BigEndian ?
+            "E-m:e-p:32:32-i1:8:32-i8:8:32-i16:16:32-f64:32:64"
+            "-v64:32:64-v128:32:128-a:0:32-n32-S32" :
+            "e-m:e-p:32:32-i1:8:32-i8:8:32-i16:16:32-f64:32:64"
+            "-v64:32:64-v128:32:128-a:0:32-n32-S32";
     } else {
       if (T.isOSBinFormatMachO())
-        DescriptionString =
+        DescriptionString = BigEndian ?
+            "E-m:o-p:32:32-f64:32:64-v64:32:64-v128:32:128-a:0:32-n32-S32" :
             "e-m:o-p:32:32-f64:32:64-v64:32:64-v128:32:128-a:0:32-n32-S32";
       else
-        DescriptionString =
+        DescriptionString = BigEndian ?
+            "E-m:e-p:32:32-f64:32:64-v64:32:64-v128:32:128-a:0:32-n32-S32" :
             "e-m:e-p:32:32-f64:32:64-v64:32:64-v128:32:128-a:0:32-n32-S32";
     }
 
@@ -3807,10 +3835,11 @@
   }
 
 public:
-  ARMTargetInfo(const llvm::Triple &Triple)
+  ARMTargetInfo(const llvm::Triple &Triple, bool IsBigEndian)
       : TargetInfo(Triple), CPU("arm1136j-s"), FPMath(FP_Default),
         IsAAPCS(true) {
-    BigEndian = false;
+    BigEndian = IsBigEndian;
+
     switch (getTriple().getOS()) {
     case llvm::Triple::NetBSD:
       PtrDiffType = SignedLong;
@@ -3897,7 +3926,9 @@
                // Enable the hwdiv extension for all v8a AArch32 cores by
                // default.
                ArchName == "armv8a" || ArchName == "armv8" ||
-               ArchName == "thumbv8a" || ArchName == "thumbv8") {
+               ArchName == "armebv8a" || ArchName == "armebv8" ||
+               ArchName == "thumbv8a" || ArchName == "thumbv8" ||
+               ArchName == "thumbebv8a" || ArchName == "thumbebv8") {
       Features["hwdiv"] = true;
       Features["hwdiv-arm"] = true;
     } else if (CPU == "cortex-m3" || CPU == "cortex-m4") {
@@ -4018,7 +4049,6 @@
     Builder.defineMacro("__arm__");
 
     // Target properties.
-    Builder.defineMacro("__ARMEL__");
     Builder.defineMacro("__REGISTER_PREFIX__", "");
 
     StringRef CPUArch = getCPUDefineSuffix(CPU);
@@ -4290,11 +4320,33 @@
                                               ALL_LANGUAGES },
 #include "clang/Basic/BuiltinsARM.def"
 };
+
+class ARMleTargetInfo : public ARMTargetInfo {
+public:
+  ARMleTargetInfo(const llvm::Triple &Triple)
+    : ARMTargetInfo(Triple, false) { }
+  virtual void getTargetDefines(const LangOptions &Opts,
+                                MacroBuilder &Builder) const {
+    Builder.defineMacro("__ARMEL__");
+    ARMTargetInfo::getTargetDefines(Opts, Builder);
+  }
+};
+
+class ARMbeTargetInfo : public ARMTargetInfo {
+public:
+  ARMbeTargetInfo(const llvm::Triple &Triple)
+    : ARMTargetInfo(Triple, true) { }
+  virtual void getTargetDefines(const LangOptions &Opts,
+                                MacroBuilder &Builder) const {
+    Builder.defineMacro("__ARMEB__");
+    ARMTargetInfo::getTargetDefines(Opts, Builder);
+  }
+};
 } // end anonymous namespace.
 
 namespace {
 class DarwinARMTargetInfo :
-  public DarwinTargetInfo<ARMTargetInfo> {
+  public DarwinTargetInfo<ARMleTargetInfo> {
 protected:
   void getOSDefines(const LangOptions &Opts, const llvm::Triple &Triple,
                     MacroBuilder &Builder) const override {
@@ -4303,10 +4355,10 @@
 
 public:
   DarwinARMTargetInfo(const llvm::Triple &Triple)
-      : DarwinTargetInfo<ARMTargetInfo>(Triple) {
+      : DarwinTargetInfo<ARMleTargetInfo>(Triple) {
     HasAlignMac68kSupport = true;
     // iOS always has 64-bit atomic instructions.
-    // FIXME: This should be based off of the target features in ARMTargetInfo.
+    // FIXME: This should be based off of the target features in ARMleTargetInfo.
     MaxAtomicInlineWidth = 64;
 
     // Darwin on iOS uses a variant of the ARM C++ ABI.
@@ -5668,23 +5720,47 @@
 
     switch (os) {
     case llvm::Triple::Linux:
-      return new LinuxTargetInfo<ARMTargetInfo>(Triple);
+      return new LinuxTargetInfo<ARMleTargetInfo>(Triple);
     case llvm::Triple::FreeBSD:
-      return new FreeBSDTargetInfo<ARMTargetInfo>(Triple);
+      return new FreeBSDTargetInfo<ARMleTargetInfo>(Triple);
     case llvm::Triple::NetBSD:
-      return new NetBSDTargetInfo<ARMTargetInfo>(Triple);
+      return new NetBSDTargetInfo<ARMleTargetInfo>(Triple);
     case llvm::Triple::OpenBSD:
-      return new OpenBSDTargetInfo<ARMTargetInfo>(Triple);
+      return new OpenBSDTargetInfo<ARMleTargetInfo>(Triple);
     case llvm::Triple::Bitrig:
-      return new BitrigTargetInfo<ARMTargetInfo>(Triple);
+      return new BitrigTargetInfo<ARMleTargetInfo>(Triple);
     case llvm::Triple::RTEMS:
-      return new RTEMSTargetInfo<ARMTargetInfo>(Triple);
+      return new RTEMSTargetInfo<ARMleTargetInfo>(Triple);
     case llvm::Triple::NaCl:
-      return new NaClTargetInfo<ARMTargetInfo>(Triple);
+      return new NaClTargetInfo<ARMleTargetInfo>(Triple);
     default:
-      return new ARMTargetInfo(Triple);
+      return new ARMleTargetInfo(Triple);
     }
 
+  case llvm::Triple::armeb:
+  case llvm::Triple::thumbeb:
+    if (Triple.isOSDarwin())
+      return new DarwinARMTargetInfo(Triple);
+
+    switch (os) {
+    case llvm::Triple::Linux:
+      return new LinuxTargetInfo<ARMbeTargetInfo>(Triple);
+    case llvm::Triple::FreeBSD:
+      return new FreeBSDTargetInfo<ARMbeTargetInfo>(Triple);
+    case llvm::Triple::NetBSD:
+      return new NetBSDTargetInfo<ARMbeTargetInfo>(Triple);
+    case llvm::Triple::OpenBSD:
+      return new OpenBSDTargetInfo<ARMbeTargetInfo>(Triple);
+    case llvm::Triple::Bitrig:
+      return new BitrigTargetInfo<ARMbeTargetInfo>(Triple);
+    case llvm::Triple::RTEMS:
+      return new RTEMSTargetInfo<ARMbeTargetInfo>(Triple);
+    case llvm::Triple::NaCl:
+      return new NaClTargetInfo<ARMbeTargetInfo>(Triple);
+    default:
+      return new ARMbeTargetInfo(Triple);
+    }
+
   case llvm::Triple::msp430:
     return new MSP430TargetInfo(Triple);
 
Index: lib/CodeGen/CGBuiltin.cpp
===================================================================
--- lib/CodeGen/CGBuiltin.cpp
+++ lib/CodeGen/CGBuiltin.cpp
@@ -1632,7 +1632,9 @@
   case llvm::Triple::aarch64_be:
     return EmitAArch64BuiltinExpr(BuiltinID, E);
   case llvm::Triple::arm:
+  case llvm::Triple::armeb:
   case llvm::Triple::thumb:
+  case llvm::Triple::thumbeb:
     return EmitARMBuiltinExpr(BuiltinID, E);
   case llvm::Triple::x86:
   case llvm::Triple::x86_64:
Index: lib/CodeGen/TargetInfo.cpp
===================================================================
--- lib/CodeGen/TargetInfo.cpp
+++ lib/CodeGen/TargetInfo.cpp
@@ -5811,7 +5811,9 @@
     return *(TheTargetCodeGenInfo = new AArch64TargetCodeGenInfo(Types));
 
   case llvm::Triple::arm:
+  case llvm::Triple::armeb:
   case llvm::Triple::thumb:
+  case llvm::Triple::thumbeb:
     {
       ARMABIInfo::ABIKind Kind = ARMABIInfo::AAPCS;
       if (strcmp(getTarget().getABI(), "apcs-gnu") == 0)
Index: lib/Driver/ToolChain.cpp
===================================================================
--- lib/Driver/ToolChain.cpp
+++ lib/Driver/ToolChain.cpp
@@ -161,8 +161,11 @@
   // The A32/T32/T16 instruction sets are not separate architectures in this
   // context.
   case llvm::Triple::arm:
+  case llvm::Triple::armeb:
   case llvm::Triple::thumb:
-    return getArch() != llvm::Triple::arm && getArch() != llvm::Triple::thumb;
+  case llvm::Triple::thumbeb:
+    return getArch() != llvm::Triple::arm && getArch() != llvm::Triple::thumb &&
+           getArch() != llvm::Triple::armeb && getArch() != llvm::Triple::thumbeb;
   default:
     return HostTriple.getArch() != getArch();
   }
@@ -194,9 +197,13 @@
     return Triple.getTriple();
   }
   case llvm::Triple::arm:
-  case llvm::Triple::thumb: {
+  case llvm::Triple::armeb:
+  case llvm::Triple::thumb:
+  case llvm::Triple::thumbeb: {
     // FIXME: Factor into subclasses.
     llvm::Triple Triple = getTriple();
+    bool IsBigEndian = getTriple().getArch() == llvm::Triple::armeb ||
+                       getTriple().getArch() == llvm::Triple::thumbeb;
 
     // Thumb2 is the default for V7 on Darwin.
     //
@@ -207,18 +214,27 @@
     bool ThumbDefault = Suffix.startswith("v6m") || Suffix.startswith("v7m") ||
       Suffix.startswith("v7em") ||
       (Suffix.startswith("v7") && getTriple().isOSBinFormatMachO());
-    std::string ArchName = "arm";
+    std::string ArchName;
+    if (IsBigEndian)
+      ArchName = "armeb";
+    else
+      ArchName = "arm";
 
     // Assembly files should start in ARM mode.
     if (InputType != types::TY_PP_Asm &&
         Args.hasFlag(options::OPT_mthumb, options::OPT_mno_thumb, ThumbDefault))
-      ArchName = "thumb";
+    {
+      if (IsBigEndian)
+        ArchName = "thumbeb";
+      else
+        ArchName = "thumb";
+    }
     Triple.setArchName(ArchName + Suffix.str());
 
     return Triple.getTriple();
   }
-  }
 }
+}
 
 std::string ToolChain::ComputeEffectiveClangTriple(const ArgList &Args, 
                                                    types::ID InputType) const {
Index: lib/Driver/ToolChains.cpp
===================================================================
--- lib/Driver/ToolChains.cpp
+++ lib/Driver/ToolChains.cpp
@@ -1307,6 +1307,11 @@
                                             "arm-linux-androideabi" };
   static const char *const ARMHFTriples[] = { "arm-linux-gnueabihf",
                                               "armv7hl-redhat-linux-gnueabi" };
+  static const char *const ARMebLibDirs[] = { "/lib" };
+  static const char *const ARMebTriples[] = { "armeb-linux-gnueabi",
+                                              "armeb-linux-androideabi" };
+  static const char *const ARMebHFTriples[] = { "armeb-linux-gnueabihf",
+                                                "armebv7hl-redhat-linux-gnueabi" };
 
   static const char *const X86_64LibDirs[] = { "/lib64", "/lib" };
   static const char *const X86_64Triples[] = {
@@ -1399,6 +1404,17 @@
                            ARMTriples + llvm::array_lengthof(ARMTriples));
     }
     break;
+  case llvm::Triple::armeb:
+  case llvm::Triple::thumbeb:
+    LibDirs.append(ARMebLibDirs, ARMebLibDirs + llvm::array_lengthof(ARMebLibDirs));
+    if (TargetTriple.getEnvironment() == llvm::Triple::GNUEABIHF) {
+      TripleAliases.append(ARMebHFTriples,
+                           ARMebHFTriples + llvm::array_lengthof(ARMebHFTriples));
+    } else {
+      TripleAliases.append(ARMebTriples,
+                           ARMebTriples + llvm::array_lengthof(ARMebTriples));
+    }
+    break;
   case llvm::Triple::x86_64:
     LibDirs.append(X86_64LibDirs,
                    X86_64LibDirs + llvm::array_lengthof(X86_64LibDirs));
@@ -2062,7 +2078,9 @@
          getTriple().getArch() == llvm::Triple::aarch64 ||
          getTriple().getArch() == llvm::Triple::aarch64_be ||
          getTriple().getArch() == llvm::Triple::arm ||
-         getTriple().getArch() == llvm::Triple::thumb;
+         getTriple().getArch() == llvm::Triple::armeb ||
+         getTriple().getArch() == llvm::Triple::thumb ||
+         getTriple().getArch() == llvm::Triple::thumbeb;
 }
 
 void Generic_ELF::addClangTargetOptions(const ArgList &DriverArgs,
@@ -2791,6 +2809,16 @@
         return "arm-linux-gnueabi";
     }
     return TargetTriple.str();
+  case llvm::Triple::armeb:
+  case llvm::Triple::thumbeb:
+    if (TargetTriple.getEnvironment() == llvm::Triple::GNUEABIHF) {
+      if (llvm::sys::fs::exists(SysRoot + "/lib/armeb-linux-gnueabihf"))
+        return "armeb-linux-gnueabihf";
+    } else {
+      if (llvm::sys::fs::exists(SysRoot + "/lib/armeb-linux-gnueabi"))
+        return "armeb-linux-gnueabi";
+    }
+    return TargetTriple.str();
   case llvm::Triple::x86:
     if (llvm::sys::fs::exists(SysRoot + "/lib/i386-linux-gnu"))
       return "i386-linux-gnu";
Index: lib/Driver/Tools.cpp
===================================================================
--- lib/Driver/Tools.cpp
+++ lib/Driver/Tools.cpp
@@ -472,6 +472,7 @@
   case llvm::Triple::aarch64:
   case llvm::Triple::aarch64_be:
   case llvm::Triple::arm:
+  case llvm::Triple::armeb:
   case llvm::Triple::ppc:
   case llvm::Triple::ppc64:
     if (Triple.isOSDarwin())
@@ -1271,7 +1272,9 @@
     return getAArch64TargetCPU(Args, T);
 
   case llvm::Triple::arm:
+  case llvm::Triple::armeb:
   case llvm::Triple::thumb:
+  case llvm::Triple::thumbeb:
     return arm::getARMTargetCPU(Args, T);
 
   case llvm::Triple::mips:
@@ -1480,7 +1483,9 @@
     break;
 
   case llvm::Triple::arm:
+  case llvm::Triple::armeb:
   case llvm::Triple::thumb:
+  case llvm::Triple::thumbeb:
     getARMTargetFeatures(D, Triple, Args, Features, ForAS);
     break;
 
@@ -1766,7 +1771,8 @@
 
 // Until ARM libraries are build separately, we have them all in one library
 static StringRef getArchNameForCompilerRTLib(const ToolChain &TC) {
-  if (TC.getArch() == llvm::Triple::arm)
+  if (TC.getArch() == llvm::Triple::arm ||
+      TC.getArch() == llvm::Triple::armeb)
     return "arm";
   else
     return TC.getArchName();
@@ -2246,7 +2252,9 @@
   if (getToolChain().getTriple().getEnvironment() == llvm::Triple::Android) {
     switch (getToolChain().getTriple().getArch()) {
     case llvm::Triple::arm:
+    case llvm::Triple::armeb:
     case llvm::Triple::thumb:
+    case llvm::Triple::thumbeb:
     case llvm::Triple::mips:
     case llvm::Triple::mipsel:
     case llvm::Triple::mips64:
@@ -2623,7 +2631,9 @@
     break;
 
   case llvm::Triple::arm:
+  case llvm::Triple::armeb:
   case llvm::Triple::thumb:
+  case llvm::Triple::thumbeb:
     AddARMTargetArgs(Args, CmdArgs, KernelOrKext);
     break;
 
@@ -4756,17 +4766,29 @@
     .Cases("armv6m", "armv6-m", "cortex-m0")
     .Case("thumbv6m", "cortex-m0")
     .Cases("armv7", "armv7a", "armv7-a", "cortex-a8")
+    .Cases("armebv7", "armebv7a", "armebv7-a", "cortex-a8")
     .Cases("thumbv7", "thumbv7a", "cortex-a8")
+    .Cases("thumbebv7", "thumbebv7a", "cortex-a8")
     .Cases("armv7l", "armv7-l", "cortex-a8")
+    .Cases("armebv7l", "armebv7-l", "cortex-a8")
     .Cases("armv7s", "armv7-s", "swift")
+    .Cases("armebv7s", "armebv7-s", "swift")
     .Cases("armv7r", "armv7-r", "cortex-r4")
+    .Cases("armebv7r", "armebv7-r", "cortex-r4")
     .Case("thumbv7r", "cortex-r4")
+    .Case("thumbebv7r", "cortex-r4")
     .Cases("armv7m", "armv7-m", "cortex-m3")
+    .Cases("armebv7m", "armebv7-m", "cortex-m3")
     .Case("thumbv7m", "cortex-m3")
+    .Case("thumbebv7m", "cortex-m3")
     .Cases("armv7em", "armv7e-m", "cortex-m4")
+    .Cases("armebv7em", "armebv7e-m", "cortex-m4")
     .Cases("thumbv7em", "thumbv7e-m", "cortex-m4")
+    .Cases("thumbebv7em", "thumbebv7e-m", "cortex-m4")
     .Cases("armv8", "armv8a", "armv8-a", "cortex-a53")
+    .Cases("armebv8", "armebv8a", "armebv8-a", "cortex-a53")
     .Cases("thumbv8", "thumbv8a", "cortex-a53")
+    .Cases("thumbebv8", "thumbebv8a", "cortex-a53")
     .Case("ep9312", "ep9312")
     .Case("iwmmxt", "iwmmxt")
     .Case("xscale", "xscale")
@@ -6013,7 +6035,9 @@
 
     addAssemblerKPIC(Args, CmdArgs);
   } else if (getToolChain().getArch() == llvm::Triple::arm ||
-             getToolChain().getArch() == llvm::Triple::thumb) {
+             getToolChain().getArch() == llvm::Triple::armeb ||
+             getToolChain().getArch() == llvm::Triple::thumb ||
+             getToolChain().getArch() == llvm::Triple::thumbeb) {
     const Driver &D = getToolChain().getDriver();
     const llvm::Triple &Triple = getToolChain().getTriple();
     StringRef FloatABI = arm::getARMFloatABI(D, Args, Triple);
@@ -6257,7 +6281,9 @@
     CmdArgs.push_back("--32");
     break;
   case llvm::Triple::arm:
-  case llvm::Triple::thumb: {
+  case llvm::Triple::armeb:
+  case llvm::Triple::thumb:
+  case llvm::Triple::thumbeb: {
     std::string MArch(arm::getARMTargetCPU(Args, getToolChain().getTriple()));
     CmdArgs.push_back(Args.MakeArgString("-mcpu=" + MArch));
     break;
@@ -6351,7 +6377,9 @@
     CmdArgs.push_back("elf_i386");
     break;
   case llvm::Triple::arm:
+  case llvm::Triple::armeb:
   case llvm::Triple::thumb:
+  case llvm::Triple::thumbeb:
     CmdArgs.push_back("-m");
     switch (getToolChain().getTriple().getEnvironment()) {
     case llvm::Triple::EABI:
@@ -6525,11 +6553,13 @@
     CmdArgs.push_back("-64");
     CmdArgs.push_back("-Av9a");
     NeedsKPIC = true;
-  } else if (getToolChain().getArch() == llvm::Triple::arm) {
+  } else if (getToolChain().getArch() == llvm::Triple::arm ||
+             getToolChain().getArch() == llvm::Triple::armeb) {
     StringRef MArch = getToolChain().getArchName();
     if (MArch == "armv7" || MArch == "armv7a" || MArch == "armv7-a")
       CmdArgs.push_back("-mfpu=neon");
-    if (MArch == "armv8" || MArch == "armv8a" || MArch == "armv8-a")
+    if (MArch == "armv8" || MArch == "armv8a" || MArch == "armv8-a" ||
+        MArch == "armebv8" || MArch == "armebv8a" || MArch == "armebv8-a")
       CmdArgs.push_back("-mfpu=crypto-neon-fp-armv8");
 
     StringRef ARMFloatABI = tools::arm::getARMFloatABI(
@@ -6676,6 +6706,12 @@
       return "/lib/ld-linux-armhf.so.3";
     else
       return "/lib/ld-linux.so.3";
+  } else if (ToolChain.getArch() == llvm::Triple::armeb ||
+             ToolChain.getArch() == llvm::Triple::thumbeb) {
+    if (ToolChain.getTriple().getEnvironment() == llvm::Triple::GNUEABIHF)
+      return "/lib/ld-linux-armhf.so.3";        /* TODO: check which dynamic linker name.  */
+    else
+      return "/lib/ld-linux.so.3";              /* TODO: check which dynamic linker name.  */
   } else if (ToolChain.getArch() == llvm::Triple::mips ||
              ToolChain.getArch() == llvm::Triple::mipsel)
     return "/lib/ld.so.1";
@@ -6767,6 +6803,9 @@
   else if (ToolChain.getArch() == llvm::Triple::arm
            ||  ToolChain.getArch() == llvm::Triple::thumb)
     CmdArgs.push_back("armelf_linux_eabi");
+  else if (ToolChain.getArch() == llvm::Triple::armeb
+           ||  ToolChain.getArch() == llvm::Triple::thumbeb)
+    CmdArgs.push_back("armebelf_linux_eabi"); /* TODO: check which NAME.  */
   else if (ToolChain.getArch() == llvm::Triple::ppc)
     CmdArgs.push_back("elf32ppclinux");
   else if (ToolChain.getArch() == llvm::Triple::ppc64)
@@ -6798,7 +6837,9 @@
 
   if (Args.hasArg(options::OPT_static)) {
     if (ToolChain.getArch() == llvm::Triple::arm ||
-        ToolChain.getArch() == llvm::Triple::thumb)
+        ToolChain.getArch() == llvm::Triple::armeb ||
+        ToolChain.getArch() == llvm::Triple::thumb ||
+        ToolChain.getArch() == llvm::Triple::thumbeb)
       CmdArgs.push_back("-Bstatic");
     else
       CmdArgs.push_back("-static");
@@ -6810,7 +6851,9 @@
   }
 
   if (ToolChain.getArch() == llvm::Triple::arm ||
+      ToolChain.getArch() == llvm::Triple::armeb ||
       ToolChain.getArch() == llvm::Triple::thumb ||
+      ToolChain.getArch() == llvm::Triple::thumbeb ||
       (!Args.hasArg(options::OPT_static) &&
        !Args.hasArg(options::OPT_shared))) {
     CmdArgs.push_back("-dynamic-linker");
Index: lib/Sema/SemaChecking.cpp
===================================================================
--- lib/Sema/SemaChecking.cpp
+++ lib/Sema/SemaChecking.cpp
@@ -302,7 +302,9 @@
   if (BuiltinID >= Builtin::FirstTSBuiltin) {
     switch (Context.getTargetInfo().getTriple().getArch()) {
       case llvm::Triple::arm:
+      case llvm::Triple::armeb:
       case llvm::Triple::thumb:
+      case llvm::Triple::thumbeb:
         if (CheckARMBuiltinFunctionCall(BuiltinID, TheCall))
           return ExprError();
         break;
Index: test/Driver/arm-cortex-cpus.c
===================================================================
--- test/Driver/arm-cortex-cpus.c
+++ test/Driver/arm-cortex-cpus.c
@@ -111,12 +111,25 @@
 // RUN: %clang -target arm -march=armv8-a  -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-V8A %s
 // CHECK-V8A: "-cc1"{{.*}} "-triple" "armv8-{{.*}}" "-target-cpu" "cortex-a53"
 
+// RUN: %clang -target armebv8  -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-V8A %s
+// RUN: %clang -target armeb -march=armebv8 -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-V8A %s
+// RUN: %clang -target armebv8a -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-V8A %s
+// RUN: %clang -target armeb -march=armebv8a -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-V8A %s
+// RUN: %clang -target armeb -march=armebv8-a  -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-V8A %s
+// CHECK-BE-V8A: "-cc1"{{.*}} "-triple" "armebv8-{{.*}}" "-target-cpu" "cortex-a53"
+
 // RUN: %clang -target armv8 -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-V8A-THUMB %s
 // RUN: %clang -target arm -march=armv8 -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-V8A-THUMB %s
 // RUN: %clang -target armv8a -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-V8A-THUMB %s
 // RUN: %clang -target arm -march=armv8a -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-V8A-THUMB %s
 // CHECK-V8A-THUMB: "-cc1"{{.*}} "-triple" "thumbv8-{{.*}}" "-target-cpu" "cortex-a53"
 
+// RUN: %clang -target armebv8 -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-V8A-THUMB %s
+// RUN: %clang -target armeb -march=armebv8 -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-V8A-THUMB %s
+// RUN: %clang -target armebv8a -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-V8A-THUMB %s
+// RUN: %clang -target armeb -march=armebv8a -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-V8A-THUMB %s
+// CHECK-BE-V8A-THUMB: "-cc1"{{.*}} "-triple" "thumbebv8-{{.*}}" "-target-cpu" "cortex-a53"
+
 // ================== Check default Architecture on each Cortex CPU
 // RUN: %clang -target arm-linux-gnueabi -mcpu=cortex-a5 -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CPUV7A %s
 // RUN: %clang -target arm-linux-gnueabi -mcpu=cortex-a7 -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CPUV7A %s
@@ -126,6 +139,14 @@
 // RUN: %clang -target arm-linux-gnueabi -mcpu=cortex-a15 -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CPUV7A %s
 // CHECK-CPUV7A: "-cc1"{{.*}} "-triple" "armv7-{{.*}}
 
+// RUN: %clang -target armeb-linux-gnueabi -mcpu=cortex-a5 -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-CPUV7A %s
+// RUN: %clang -target armeb-linux-gnueabi -mcpu=cortex-a7 -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-CPUV7A %s
+// RUN: %clang -target armeb-linux-gnueabi -mcpu=cortex-a8 -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-CPUV7A %s
+// RUN: %clang -target armeb-linux-gnueabi -mcpu=cortex-a9 -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-CPUV7A %s
+// RUN: %clang -target armeb-linux-gnueabi -mcpu=cortex-a12 -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-CPUV7A %s
+// RUN: %clang -target armeb-linux-gnueabi -mcpu=cortex-a15 -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-CPUV7A %s
+// CHECK-BE-CPUV7A: "-cc1"{{.*}} "-triple" "armebv7-{{.*}}
+
 // RUN: %clang -target arm-linux-gnueabi -mcpu=cortex-a5  -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CPUV7A-THUMB %s
 // RUN: %clang -target arm-linux-gnueabi -mcpu=cortex-a7  -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CPUV7A-THUMB %s
 // RUN: %clang -target arm-linux-gnueabi -mcpu=cortex-a8  -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CPUV7A-THUMB %s
@@ -134,27 +155,57 @@
 // RUN: %clang -target arm-linux-gnueabi -mcpu=cortex-a15 -mthumb  -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CPUV7A-THUMB %s
 // CHECK-CPUV7A-THUMB: "-cc1"{{.*}} "-triple" "thumbv7-{{.*}}
 
+// RUN: %clang -target armeb-linux-gnueabi -mcpu=cortex-a5  -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-CPUV7A-THUMB %s
+// RUN: %clang -target armeb-linux-gnueabi -mcpu=cortex-a7  -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-CPUV7A-THUMB %s
+// RUN: %clang -target armeb-linux-gnueabi -mcpu=cortex-a8  -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-CPUV7A-THUMB %s
+// RUN: %clang -target armeb-linux-gnueabi -mcpu=cortex-a9  -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-CPUV7A-THUMB %s
+// RUN: %clang -target armeb-linux-gnueabi -mcpu=cortex-a12 -mthumb  -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-CPUV7A-THUMB %s
+// RUN: %clang -target armeb-linux-gnueabi -mcpu=cortex-a15 -mthumb  -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-CPUV7A-THUMB %s
+// CHECK-BE-CPUV7A-THUMB: "-cc1"{{.*}} "-triple" "thumbebv7-{{.*}}
+
 // RUN: %clang -target arm-linux-gnueabi -mcpu=cortex-m0 -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CPUV6M %s
 // CHECK-CPUV6M: "-cc1"{{.*}} "-triple" "thumbv6m-{{.*}}
 
 // RUN: %clang -target arm-linux-gnueabi -mcpu=cortex-m3 -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CPUV7M %s
 // CHECK-CPUV7M: "-cc1"{{.*}} "-triple" "thumbv7m-{{.*}}
 
+// RUN: %clang -target armeb-linux-gnueabi -mcpu=cortex-m3 -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-CPUV7M %s
+// CHECK-BE-CPUV7M: "-cc1"{{.*}} "-triple" "thumbebv7m-{{.*}}
+
 // RUN: %clang -target arm-linux-gnueabi -mcpu=cortex-m4 -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CPUV7EM %s
 // CHECK-CPUV7EM: "-cc1"{{.*}} "-triple" "thumbv7em-{{.*}}
 
+// RUN: %clang -target armeb-linux-gnueabi -mcpu=cortex-m4 -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-CPUV7EM %s
+// CHECK-BE-CPUV7EM: "-cc1"{{.*}} "-triple" "thumbebv7em-{{.*}}
+
 // RUN: %clang -target arm-linux-gnueabi -mcpu=cortex-r4 -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CPUV7R %s
 // RUN: %clang -target arm-linux-gnueabi -mcpu=cortex-r5 -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CPUV7R %s
 // CHECK-CPUV7R: "-cc1"{{.*}} "-triple" "armv7r-{{.*}}
 
+// RUN: %clang -target armeb-linux-gnueabi -mcpu=cortex-r4 -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-CPUV7R %s
+// RUN: %clang -target armeb-linux-gnueabi -mcpu=cortex-r5 -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-CPUV7R %s
+// CHECK-BE-CPUV7R: "-cc1"{{.*}} "-triple" "armebv7r-{{.*}}
+
 // RUN: %clang -target arm-linux-gnueabi -mcpu=cortex-r4 -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CPUV7R-THUMB %s
 // RUN: %clang -target arm-linux-gnueabi -mcpu=cortex-r5 -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CPUV7R-THUMB %s
 // CHECK-CPUV7R-THUMB: "-cc1"{{.*}} "-triple" "thumbv7r-{{.*}}
 
+// RUN: %clang -target armeb-linux-gnueabi -mcpu=cortex-r4 -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-CPUV7R-THUMB %s
+// RUN: %clang -target armeb-linux-gnueabi -mcpu=cortex-r5 -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-CPUV7R-THUMB %s
+// CHECK-BE-CPUV7R-THUMB: "-cc1"{{.*}} "-triple" "thumbebv7r-{{.*}}
+
 // RUN: %clang -target arm -mcpu=cortex-a53 -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CPUV8A %s
 // RUN: %clang -target arm -mcpu=cortex-a57 -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CPUV8A %s
 // CHECK-CPUV8A: "-cc1"{{.*}} "-triple" "armv8-{{.*}}
 
+// RUN: %clang -target armeb -mcpu=cortex-a53 -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-CPUV8A %s
+// RUN: %clang -target armeb -mcpu=cortex-a57 -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-CPUV8A %s
+// CHECK-BE-CPUV8A: "-cc1"{{.*}} "-triple" "armebv8-{{.*}}
+
 // RUN: %clang -target arm -mcpu=cortex-a53 -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CPUV8A-THUMB %s
 // RUN: %clang -target arm -mcpu=cortex-a57 -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-CPUV8A-THUMB %s
 // CHECK-CPUV8A-THUMB: "-cc1"{{.*}} "-triple" "thumbv8-{{.*}}
+
+// RUN: %clang -target armeb -mcpu=cortex-a53 -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-CPUV8A-THUMB %s
+// RUN: %clang -target armeb -mcpu=cortex-a57 -mthumb -### -c %s 2>&1 | FileCheck -check-prefix=CHECK-BE-CPUV8A-THUMB %s
+// CHECK-BE-CPUV8A-THUMB: "-cc1"{{.*}} "-triple" "thumbebv8-{{.*}}
Index: test/Preprocessor/init.c
===================================================================
--- test/Preprocessor/init.c
+++ test/Preprocessor/init.c
@@ -410,7 +410,7 @@
 // AARCH64-NETBSD:#define __WINT_TYPE__ int
 // AARCH64-NETBSD:#define __WINT_WIDTH__ 32
 // AARCH64-NETBSD:#define __aarch64__ 1
-//
+
 // RUN: %clang_cc1 -E -dM -ffreestanding -triple=arm-none-none < /dev/null | FileCheck -check-prefix ARM %s
 //
 // ARM-NOT:#define _LP64
@@ -511,6 +511,106 @@
 // ARM:#define __arm 1
 // ARM:#define __arm__ 1
 
+// RUN: %clang_cc1 -E -dM -ffreestanding -triple=armeb-none-none < /dev/null | FileCheck -check-prefix ARM-BE %s
+//
+// ARM-NOT:#define _LP64
+// ARM-BE:#define __APCS_32__ 1
+// ARM-BE:#define __ARMEB__ 1
+// ARM-BE:#define __ARM_ARCH_6J__ 1
+// ARM-BE:#define __BIG_ENDIAN__ 1
+// ARM-BE:#define __BYTE_ORDER__ __ORDER_BIG_ENDIAN__
+// ARM-BE:#define __CHAR16_TYPE__ unsigned short
+// ARM-BE:#define __CHAR32_TYPE__ unsigned int
+// ARM-BE:#define __CHAR_BIT__ 8
+// ARM-BE:#define __DBL_DENORM_MIN__ 4.9406564584124654e-324
+// ARM-BE:#define __DBL_DIG__ 15
+// ARM-BE:#define __DBL_EPSILON__ 2.2204460492503131e-16
+// ARM-BE:#define __DBL_HAS_DENORM__ 1
+// ARM-BE:#define __DBL_HAS_INFINITY__ 1
+// ARM-BE:#define __DBL_HAS_QUIET_NAN__ 1
+// ARM-BE:#define __DBL_MANT_DIG__ 53
+// ARM-BE:#define __DBL_MAX_10_EXP__ 308
+// ARM-BE:#define __DBL_MAX_EXP__ 1024
+// ARM-BE:#define __DBL_MAX__ 1.7976931348623157e+308
+// ARM-BE:#define __DBL_MIN_10_EXP__ (-307)
+// ARM-BE:#define __DBL_MIN_EXP__ (-1021)
+// ARM-BE:#define __DBL_MIN__ 2.2250738585072014e-308
+// ARM-BE:#define __DECIMAL_DIG__ 17
+// ARM-BE:#define __FLT_DENORM_MIN__ 1.40129846e-45F
+// ARM-BE:#define __FLT_DIG__ 6
+// ARM-BE:#define __FLT_EPSILON__ 1.19209290e-7F
+// ARM-BE:#define __FLT_EVAL_METHOD__ 0
+// ARM-BE:#define __FLT_HAS_DENORM__ 1
+// ARM-BE:#define __FLT_HAS_INFINITY__ 1
+// ARM-BE:#define __FLT_HAS_QUIET_NAN__ 1
+// ARM-BE:#define __FLT_MANT_DIG__ 24
+// ARM-BE:#define __FLT_MAX_10_EXP__ 38
+// ARM-BE:#define __FLT_MAX_EXP__ 128
+// ARM-BE:#define __FLT_MAX__ 3.40282347e+38F
+// ARM-BE:#define __FLT_MIN_10_EXP__ (-37)
+// ARM-BE:#define __FLT_MIN_EXP__ (-125)
+// ARM-BE:#define __FLT_MIN__ 1.17549435e-38F
+// ARM-BE:#define __FLT_RADIX__ 2
+// ARM-BE:#define __INT16_TYPE__ short
+// ARM-BE:#define __INT32_TYPE__ int
+// ARM-BE:#define __INT64_C_SUFFIX__ LL
+// ARM-BE:#define __INT64_TYPE__ long long int
+// ARM-BE:#define __INT8_TYPE__ char
+// ARM-BE:#define __INTMAX_MAX__ 9223372036854775807LL
+// ARM-BE:#define __INTMAX_TYPE__ long long int
+// ARM-BE:#define __INTMAX_WIDTH__ 64
+// ARM-BE:#define __INTPTR_TYPE__ long int
+// ARM-BE:#define __INTPTR_WIDTH__ 32
+// ARM-BE:#define __INT_MAX__ 2147483647
+// ARM-BE:#define __LDBL_DENORM_MIN__ 4.9406564584124654e-324L
+// ARM-BE:#define __LDBL_DIG__ 15
+// ARM-BE:#define __LDBL_EPSILON__ 2.2204460492503131e-16L
+// ARM-BE:#define __LDBL_HAS_DENORM__ 1
+// ARM-BE:#define __LDBL_HAS_INFINITY__ 1
+// ARM-BE:#define __LDBL_HAS_QUIET_NAN__ 1
+// ARM-BE:#define __LDBL_MANT_DIG__ 53
+// ARM-BE:#define __LDBL_MAX_10_EXP__ 308
+// ARM-BE:#define __LDBL_MAX_EXP__ 1024
+// ARM-BE:#define __LDBL_MAX__ 1.7976931348623157e+308L
+// ARM-BE:#define __LDBL_MIN_10_EXP__ (-307)
+// ARM-BE:#define __LDBL_MIN_EXP__ (-1021)
+// ARM-BE:#define __LDBL_MIN__ 2.2250738585072014e-308L
+// ARM-BE:#define __LONG_LONG_MAX__ 9223372036854775807LL
+// ARM-BE:#define __LONG_MAX__ 2147483647L
+// ARM-NOT:#define __LP64__
+// ARM-BE:#define __POINTER_WIDTH__ 32
+// ARM-BE:#define __PTRDIFF_TYPE__ int
+// ARM-BE:#define __PTRDIFF_WIDTH__ 32
+// ARM-BE:#define __REGISTER_PREFIX__
+// ARM-BE:#define __SCHAR_MAX__ 127
+// ARM-BE:#define __SHRT_MAX__ 32767
+// ARM-BE:#define __SIG_ATOMIC_WIDTH__ 32
+// ARM-BE:#define __SIZEOF_DOUBLE__ 8
+// ARM-BE:#define __SIZEOF_FLOAT__ 4
+// ARM-BE:#define __SIZEOF_INT__ 4
+// ARM-BE:#define __SIZEOF_LONG_DOUBLE__ 8
+// ARM-BE:#define __SIZEOF_LONG_LONG__ 8
+// ARM-BE:#define __SIZEOF_LONG__ 4
+// ARM-BE:#define __SIZEOF_POINTER__ 4
+// ARM-BE:#define __SIZEOF_PTRDIFF_T__ 4
+// ARM-BE:#define __SIZEOF_SHORT__ 2
+// ARM-BE:#define __SIZEOF_SIZE_T__ 4
+// ARM-BE:#define __SIZEOF_WCHAR_T__ 4
+// ARM-BE:#define __SIZEOF_WINT_T__ 4
+// ARM-BE:#define __SIZE_MAX__ 4294967295U
+// ARM-BE:#define __SIZE_TYPE__ unsigned int
+// ARM-BE:#define __SIZE_WIDTH__ 32
+// ARM-BE:#define __THUMB_INTERWORK__ 1
+// ARM-BE:#define __UINTMAX_TYPE__ long long unsigned int
+// ARM-BE:#define __USER_LABEL_PREFIX__ _
+// ARM-BE:#define __WCHAR_MAX__ 4294967295U
+// ARM-BE:#define __WCHAR_TYPE__ unsigned int
+// ARM-BE:#define __WCHAR_WIDTH__ 32
+// ARM-BE:#define __WINT_TYPE__ int
+// ARM-BE:#define __WINT_WIDTH__ 32
+// ARM-BE:#define __arm 1
+// ARM-BE:#define __arm__ 1
+
 // RUN: %clang_cc1 -E -dM -ffreestanding -triple=arm-none-linux-gnueabi -target-feature +soft-float -target-feature +soft-float-abi < /dev/null | FileCheck -check-prefix ARMEABISOFTFP %s
 //
 // ARM-NOT:#define _LP64
@@ -752,10 +852,18 @@
 // ARMv8: #define __THUMB_INTERWORK__ 1
 // ARMv8-NOT: #define __thumb2__
 
+// RUN: %clang_cc1 -E -dM -ffreestanding -triple=armebv8-none-none < /dev/null | FileCheck -check-prefix ARMebv8 %s
+// ARMebv8: #define __THUMB_INTERWORK__ 1
+// ARMebv8-NOT: #define __thumb2__
+
 // RUN: %clang_cc1 -E -dM -ffreestanding -triple=thumbv8 < /dev/null | FileCheck -check-prefix Thumbv8 %s
 // Thumbv8: #define __THUMB_INTERWORK__ 1
 // Thumbv8: #define __thumb2__
 
+// RUN: %clang_cc1 -E -dM -ffreestanding -triple=thumbebv8 < /dev/null | FileCheck -check-prefix Thumbebv8 %s
+// Thumbebv8: #define __THUMB_INTERWORK__ 1
+// Thumbebv8: #define __thumb2__
+
 // RUN: %clang_cc1 -E -dM -ffreestanding -triple=thumbv5 < /dev/null | FileCheck -check-prefix Thumbv5 %s
 // Thumbv5: #define __THUMB_INTERWORK__ 1
 // Thumbv5-NOT: #define __thumb2__
@@ -768,6 +876,10 @@
 // Thumbv7: #define __THUMB_INTERWORK__ 1
 // Thumbv7: #define __thumb2__
 
+// RUN: %clang_cc1 -E -dM -ffreestanding -triple=thumbebv7 < /dev/null | FileCheck -check-prefix Thumbebv7 %s
+// Thumbebv7: #define __THUMB_INTERWORK__ 1
+// Thumbebv7: #define __thumb2__
+
 //
 // RUN: %clang_cc1 -E -dM -ffreestanding -triple=i386-none-none < /dev/null | FileCheck -check-prefix I386 %s
 //