3 files changed, 18 insertions, 21 deletions
diff --git a/llvm/lib/Target/ARM/ARMAsmBackend.cpp b/llvm/lib/Target/ARM/ARMAsmBackend.cpp
index e972a08fd3b..f0628192308 100644
--- a/llvm/lib/Target/ARM/ARMAsmBackend.cpp
+++ b/llvm/lib/Target/ARM/ARMAsmBackend.cpp
@@ -501,18 +501,16 @@ void DarwinARMAsmBackend::ApplyFixup(const MCFixup &Fixup, char *Data,
 TargetAsmBackend *llvm::createARMAsmBackend(const Target &T,
                                             const std::string &TT) {
   Triple TheTriple(TT);
-  switch (TheTriple.getOS()) {
-  case Triple::Darwin: {
+
+  if (TheTriple.isOSDarwin()) {
     if (TheTriple.getArchName() == "armv6" ||
         TheTriple.getArchName() == "thumbv6")
       return new DarwinARMAsmBackend(T, object::mach::CSARM_V6);
     return new DarwinARMAsmBackend(T, object::mach::CSARM_V7);
   }
-  case Triple::MinGW32:
-  case Triple::Cygwin:
-  case Triple::Win32:
+
+  if (TheTriple.isOSWindows())
     assert(0 && "Windows not supported on ARM");
-  default:
-    return new ELFARMAsmBackend(T, Triple(TT).getOS());
-  }
+
+  return new ELFARMAsmBackend(T, Triple(TT).getOS());
 }
diff --git a/llvm/lib/Target/ARM/ARMSubtarget.h b/llvm/lib/Target/ARM/ARMSubtarget.h
index 5bce87f1415..f880bc958fe 100644
--- a/llvm/lib/Target/ARM/ARMSubtarget.h
+++ b/llvm/lib/Target/ARM/ARMSubtarget.h
@@ -201,7 +201,7 @@ protected:
   bool hasFP16() const { return HasFP16; }
   bool hasD16() const { return HasD16; }
 
-  bool isTargetDarwin() const { return TargetTriple.getOS() == Triple::Darwin; }
+  bool isTargetDarwin() const { return TargetTriple.isOSDarwin(); }
   bool isTargetELF() const { return !isTargetDarwin(); }
 
   bool isAPCS_ABI() const { return TargetABI == ARM_ABI_APCS; }
diff --git a/llvm/lib/Target/ARM/ARMTargetMachine.cpp b/llvm/lib/Target/ARM/ARMTargetMachine.cpp
index 197b514e44a..29aa4f7ad2c 100644
--- a/llvm/lib/Target/ARM/ARMTargetMachine.cpp
+++ b/llvm/lib/Target/ARM/ARMTargetMachine.cpp
@@ -24,12 +24,11 @@ using namespace llvm;
 
 static MCAsmInfo *createMCAsmInfo(const Target &T, StringRef TT) {
   Triple TheTriple(TT);
-  switch (TheTriple.getOS()) {
-  case Triple::Darwin:
+
+  if (TheTriple.isOSDarwin())
     return new ARMMCAsmInfoDarwin();
-  default:
-    return new ARMELFMCAsmInfo();
-  }
+
+  return new ARMELFMCAsmInfo();
 }
 
 // This is duplicated code. Refactor this.
@@ -39,17 +38,17 @@ static MCStreamer *createMCStreamer(const Target &T, const std::string &TT,
                                     MCCodeEmitter *Emitter,
                                     bool RelaxAll,
                                     bool NoExecStack) {
-  switch (Triple(TT).getOS()) {
-  case Triple::Darwin:
+  Triple TheTriple(TT);
+
+  if (TheTriple.isOSDarwin())
     return createMachOStreamer(Ctx, TAB, OS, Emitter, RelaxAll);
-  case Triple::MinGW32:
-  case Triple::Cygwin:
-  case Triple::Win32:
+
+  if (TheTriple.isOSWindows()) {
     llvm_unreachable("ARM does not support Windows COFF format");
     return NULL;
-  default:
-    return createELFStreamer(Ctx, TAB, OS, Emitter, RelaxAll, NoExecStack);
   }
+
+  return createELFStreamer(Ctx, TAB, OS, Emitter, RelaxAll, NoExecStack);
 }
 
 extern "C" void LLVMInitializeARMTarget() {