Index: lib/Basic/Targets/Mips.h
===================================================================
--- lib/Basic/Targets/Mips.h
+++ lib/Basic/Targets/Mips.h
@@ -69,10 +69,7 @@
         UseIndirectJumpHazard(false), HasFP64(false) {
     TheCXXABI.set(TargetCXXABI::GenericMIPS);
 
-    setABI((getTriple().getArch() == llvm::Triple::mips ||
-            getTriple().getArch() == llvm::Triple::mipsel)
-               ? "o32"
-               : "n64");
+    setABI(getTriple().isMIPS32() ? "o32" : "n64");
 
     CPU = ABI == "o32" ? "mips32r2" : "mips64r2";
 
Index: lib/Basic/Targets/Mips.cpp
===================================================================
--- lib/Basic/Targets/Mips.cpp
+++ lib/Basic/Targets/Mips.cpp
@@ -200,9 +200,7 @@
 
 bool MipsTargetInfo::validateTarget(DiagnosticsEngine &Diags) const {
   // microMIPS64R6 backend was removed.
-  if ((getTriple().getArch() == llvm::Triple::mips64 ||
-       getTriple().getArch() == llvm::Triple::mips64el) &&
-       IsMicromips && (ABI == "n32" || ABI == "n64")) {
+  if (getTriple().isMIPS64() && IsMicromips && (ABI == "n32" || ABI == "n64")) {
     Diags.Report(diag::err_target_unsupported_cpu_for_micromips) << CPU;
     return false;
   }
@@ -222,9 +220,7 @@
   // FIXME: It's valid to use O32 on a mips64/mips64el triple but the backend
   //        can't handle this yet. It's better to fail here than on the
   //        backend assertion.
-  if ((getTriple().getArch() == llvm::Triple::mips64 ||
-       getTriple().getArch() == llvm::Triple::mips64el) &&
-      ABI == "o32") {
+  if (getTriple().isMIPS64() && ABI == "o32") {
     Diags.Report(diag::err_target_unsupported_abi_for_triple)
         << ABI << getTriple().str();
     return false;
@@ -233,9 +229,7 @@
   // FIXME: It's valid to use N32/N64 on a mips/mipsel triple but the backend
   //        can't handle this yet. It's better to fail here than on the
   //        backend assertion.
-  if ((getTriple().getArch() == llvm::Triple::mips ||
-       getTriple().getArch() == llvm::Triple::mipsel) &&
-      (ABI == "n32" || ABI == "n64")) {
+  if (getTriple().isMIPS32() && (ABI == "n32" || ABI == "n64")) {
     Diags.Report(diag::err_target_unsupported_abi_for_triple)
         << ABI << getTriple().str();
     return false;
Index: lib/Driver/ToolChains/Arch/Mips.h
===================================================================
--- lib/Driver/ToolChains/Arch/Mips.h
+++ lib/Driver/ToolChains/Arch/Mips.h
@@ -21,8 +21,6 @@
 namespace driver {
 namespace tools {
 
-bool isMipsArch(llvm::Triple::ArchType Arch);
-
 namespace mips {
 typedef enum { Legacy = 1, Std2008 = 2 } IEEE754Standard;
 
Index: lib/Driver/ToolChains/Arch/Mips.cpp
===================================================================
--- lib/Driver/ToolChains/Arch/Mips.cpp
+++ lib/Driver/ToolChains/Arch/Mips.cpp
@@ -20,11 +20,6 @@
 using namespace clang;
 using namespace llvm::opt;
 
-bool tools::isMipsArch(llvm::Triple::ArchType Arch) {
-  return Arch == llvm::Triple::mips || Arch == llvm::Triple::mipsel ||
-         Arch == llvm::Triple::mips64 || Arch == llvm::Triple::mips64el;
-}
-
 // Get CPU and ABI names. They are not independent
 // so we have to calculate them together.
 void mips::getMipsCPUAndABI(const ArgList &Args, const llvm::Triple &Triple,
@@ -106,11 +101,7 @@
 
   if (ABIName.empty()) {
     // Deduce ABI name from the target triple.
-    if (Triple.getArch() == llvm::Triple::mips ||
-        Triple.getArch() == llvm::Triple::mipsel)
-      ABIName = "o32";
-    else
-      ABIName = "n64";
+    ABIName = Triple.isMIPS32() ? "o32" : "n64";
   }
 
   if (CPUName.empty()) {
Index: lib/Driver/ToolChains/CommonArgs.cpp
===================================================================
--- lib/Driver/ToolChains/CommonArgs.cpp
+++ lib/Driver/ToolChains/CommonArgs.cpp
@@ -1030,10 +1030,7 @@
   if ((ROPI || RWPI) && (PIC || PIE))
     ToolChain.getDriver().Diag(diag::err_drv_ropi_rwpi_incompatible_with_pic);
 
-  if (Triple.getArch() == llvm::Triple::mips ||
-       Triple.getArch() == llvm::Triple::mipsel ||
-       Triple.getArch() == llvm::Triple::mips64 ||
-       Triple.getArch() == llvm::Triple::mips64el) {
+  if (Triple.isMIPS()) {
     StringRef CPUName;
     StringRef ABIName;
     mips::getMipsCPUAndABI(Args, Triple, CPUName, ABIName);
Index: lib/Driver/ToolChains/FreeBSD.cpp
===================================================================
--- lib/Driver/ToolChains/FreeBSD.cpp
+++ lib/Driver/ToolChains/FreeBSD.cpp
@@ -57,11 +57,10 @@
     CmdArgs.push_back("-mabi");
     CmdArgs.push_back(mips::getGnuCompatibleMipsABIName(ABIName).data());
 
-    if (getToolChain().getArch() == llvm::Triple::mips ||
-        getToolChain().getArch() == llvm::Triple::mips64)
-      CmdArgs.push_back("-EB");
-    else
+    if (getToolChain().getTriple().isLittleEndian())
       CmdArgs.push_back("-EL");
+    else
+      CmdArgs.push_back("-EB");
 
     if (Arg *A = Args.getLastArg(options::OPT_G)) {
       StringRef v = A->getValue();
@@ -179,10 +178,7 @@
   }
 
   if (Arg *A = Args.getLastArg(options::OPT_G)) {
-    if (ToolChain.getArch() == llvm::Triple::mips ||
-      ToolChain.getArch() == llvm::Triple::mipsel ||
-      ToolChain.getArch() == llvm::Triple::mips64 ||
-      ToolChain.getArch() == llvm::Triple::mips64el) {
+    if (ToolChain.getTriple().isMIPS()) {
       StringRef v = A->getValue();
       CmdArgs.push_back(Args.MakeArgString("-G" + v));
       A->claim();
@@ -322,10 +318,7 @@
 
   // When targeting 32-bit platforms, look for '/usr/lib32/crt1.o' and fall
   // back to '/usr/lib' if it doesn't exist.
-  if ((Triple.getArch() == llvm::Triple::x86 ||
-       Triple.getArch() == llvm::Triple::mips ||
-       Triple.getArch() == llvm::Triple::mipsel ||
-       Triple.getArch() == llvm::Triple::ppc) &&
+  if ((Triple.getArch() == llvm::Triple::x86 || Triple.isMIPS32() || Triple.getArch() == llvm::Triple::ppc) &&
       D.getVFS().exists(getDriver().SysRoot + "/usr/lib32/crt1.o"))
     getFilePaths().push_back(getDriver().SysRoot + "/usr/lib32");
   else
@@ -389,8 +382,7 @@
 SanitizerMask FreeBSD::getSupportedSanitizers() const {
   const bool IsX86 = getTriple().getArch() == llvm::Triple::x86;
   const bool IsX86_64 = getTriple().getArch() == llvm::Triple::x86_64;
-  const bool IsMIPS64 = getTriple().getArch() == llvm::Triple::mips64 ||
-                        getTriple().getArch() == llvm::Triple::mips64el;
+  const bool IsMIPS64 = getTriple().isMIPS32();
   SanitizerMask Res = ToolChain::getSupportedSanitizers();
   Res |= SanitizerKind::Address;
   Res |= SanitizerKind::Vptr;
Index: lib/Driver/ToolChains/Gnu.cpp
===================================================================
--- lib/Driver/ToolChains/Gnu.cpp
+++ lib/Driver/ToolChains/Gnu.cpp
@@ -707,11 +707,10 @@
     if (ABIName != "64" && !Args.hasArg(options::OPT_mno_abicalls))
       CmdArgs.push_back("-call_nonpic");
 
-    if (getToolChain().getArch() == llvm::Triple::mips ||
-        getToolChain().getArch() == llvm::Triple::mips64)
-      CmdArgs.push_back("-EB");
-    else
+    if (getToolChain().getTriple().isLittleEndian())
       CmdArgs.push_back("-EL");
+    else
+      CmdArgs.push_back("-EB");
 
     if (Arg *A = Args.getLastArg(options::OPT_mnan_EQ)) {
       if (StringRef(A->getValue()) == "2008")
@@ -835,14 +834,6 @@
   return Arch == llvm::Triple::arm || Arch == llvm::Triple::thumb;
 }
 
-static bool isMips32(llvm::Triple::ArchType Arch) {
-  return Arch == llvm::Triple::mips || Arch == llvm::Triple::mipsel;
-}
-
-static bool isMips64(llvm::Triple::ArchType Arch) {
-  return Arch == llvm::Triple::mips64 || Arch == llvm::Triple::mips64el;
-}
-
 static bool isMipsEL(llvm::Triple::ArchType Arch) {
   return Arch == llvm::Triple::mipsel || Arch == llvm::Triple::mips64el;
 }
@@ -1305,8 +1296,8 @@
   llvm::Triple::ArchType TargetArch = TargetTriple.getArch();
 
   Multilib::flags_list Flags;
-  addMultilibFlag(isMips32(TargetArch), "m32", Flags);
-  addMultilibFlag(isMips64(TargetArch), "m64", Flags);
+  addMultilibFlag(TargetTriple.isMIPS32(), "m32", Flags);
+  addMultilibFlag(TargetTriple.isMIPS64(), "m64", Flags);
   addMultilibFlag(isMips16(Args), "mips16", Flags);
   addMultilibFlag(CPUName == "mips32", "march=mips32", Flags);
   addMultilibFlag(CPUName == "mips32r2" || CPUName == "mips32r3" ||
@@ -2151,7 +2142,7 @@
   if (isArmOrThumbArch(TargetArch) && TargetTriple.isAndroid()) {
     // It should also work without multilibs in a simplified toolchain.
     findAndroidArmMultilibs(D, TargetTriple, Path, Args, Detected);
-  } else if (tools::isMipsArch(TargetArch)) {
+  } else if (TargetTriple.isMIPS()) {
     if (!findMIPSMultilibs(D, TargetTriple, Path, Args, Detected))
       return false;
   } else if (isRISCV(TargetArch)) {
Index: lib/Driver/ToolChains/Linux.cpp
===================================================================
--- lib/Driver/ToolChains/Linux.cpp
+++ lib/Driver/ToolChains/Linux.cpp
@@ -156,7 +156,7 @@
 }
 
 static StringRef getOSLibDir(const llvm::Triple &Triple, const ArgList &Args) {
-  if (tools::isMipsArch(Triple.getArch())) {
+  if (Triple.isMIPS()) {
     if (Triple.isAndroid()) {
       StringRef CPUName;
       StringRef ABIName;
@@ -242,7 +242,7 @@
     ExtraOpts.push_back("-X");
 
   const bool IsAndroid = Triple.isAndroid();
-  const bool IsMips = tools::isMipsArch(Arch);
+  const bool IsMips = Triple.isMIPS();
   const bool IsHexagon = Arch == llvm::Triple::hexagon;
   const bool IsRISCV =
       Arch == llvm::Triple::riscv32 || Arch == llvm::Triple::riscv64;
@@ -438,7 +438,7 @@
       return AndroidSysRootPath;
   }
 
-  if (!GCCInstallation.isValid() || !tools::isMipsArch(getTriple().getArch()))
+  if (!GCCInstallation.isValid() || !getTriple().isMIPS())
     return std::string();
 
   // Standalone MIPS toolchains use different names for sysroot folder
@@ -530,8 +530,6 @@
   case llvm::Triple::mipsel:
   case llvm::Triple::mips64:
   case llvm::Triple::mips64el: {
-    bool LE = (Triple.getArch() == llvm::Triple::mipsel) ||
-              (Triple.getArch() == llvm::Triple::mips64el);
     bool IsNaN2008 = tools::mips::isNaN2008(Args, Triple);
 
     LibDir = "lib" + tools::mips::getMipsABILibSuffix(Args, Triple);
@@ -540,7 +538,7 @@
       Loader = IsNaN2008 ? "ld-uClibc-mipsn8.so.0" : "ld-uClibc.so.0";
     else if (!Triple.hasEnvironment() &&
              Triple.getVendor() == llvm::Triple::VendorType::MipsTechnologies)
-      Loader = LE ? "ld-musl-mipsel.so.1" : "ld-musl-mips.so.1";
+      Loader = Triple.isLittleEndian() ? "ld-musl-mipsel.so.1" : "ld-musl-mips.so.1";
     else
       Loader = IsNaN2008 ? "ld-linux-mipsn8.so.1" : "ld.so.1";
 
@@ -894,10 +892,8 @@
 SanitizerMask Linux::getSupportedSanitizers() const {
   const bool IsX86 = getTriple().getArch() == llvm::Triple::x86;
   const bool IsX86_64 = getTriple().getArch() == llvm::Triple::x86_64;
-  const bool IsMIPS = getTriple().getArch() == llvm::Triple::mips ||
-                      getTriple().getArch() == llvm::Triple::mipsel;
-  const bool IsMIPS64 = getTriple().getArch() == llvm::Triple::mips64 ||
-                        getTriple().getArch() == llvm::Triple::mips64el;
+  const bool IsMIPS = getTriple().isMIPS32();
+  const bool IsMIPS64 = getTriple().isMIPS64();
   const bool IsPowerPC64 = getTriple().getArch() == llvm::Triple::ppc64 ||
                            getTriple().getArch() == llvm::Triple::ppc64le;
   const bool IsAArch64 = getTriple().getArch() == llvm::Triple::aarch64 ||
Index: lib/Driver/ToolChains/NetBSD.cpp
===================================================================
--- lib/Driver/ToolChains/NetBSD.cpp
+++ lib/Driver/ToolChains/NetBSD.cpp
@@ -64,11 +64,10 @@
     CmdArgs.push_back("-mabi");
     CmdArgs.push_back(mips::getGnuCompatibleMipsABIName(ABIName).data());
 
-    if (getToolChain().getArch() == llvm::Triple::mips ||
-        getToolChain().getArch() == llvm::Triple::mips64)
-      CmdArgs.push_back("-EB");
-    else
+    if (getToolChain().getTriple().isLittleEndian())
       CmdArgs.push_back("-EL");
+    else
+      CmdArgs.push_back("-EB");
 
     AddAssemblerKPIC(getToolChain(), Args, CmdArgs);
     break;
Index: lib/Driver/ToolChains/OpenBSD.cpp
===================================================================
--- lib/Driver/ToolChains/OpenBSD.cpp
+++ lib/Driver/ToolChains/OpenBSD.cpp
@@ -68,10 +68,10 @@
     CmdArgs.push_back("-mabi");
     CmdArgs.push_back(mips::getGnuCompatibleMipsABIName(ABIName).data());
 
-    if (getToolChain().getArch() == llvm::Triple::mips64)
-      CmdArgs.push_back("-EB");
-    else
+    if (getToolChain().getTriple().isLittleEndian())
       CmdArgs.push_back("-EL");
+    else
+      CmdArgs.push_back("-EB");
 
     AddAssemblerKPIC(getToolChain(), Args, CmdArgs);
     break;