Add Myriad into enum VendorType.

[dougk]

Summary

Myriad isn't really the vendor, but this maintains compatibility with an existing gcc triple.
Doing it any other way (such as spelling Movidius as "myriad") is just asking for trouble.

[jyknight]

Seems sensible to me, but not sure if anyone else wants to object to the erroneous usage.

[chandlerc]

LGTM

[echristo]

Looks fine. Sad but fine :)

-eric

llvm/trunk/include/llvm/ADT/Triple.h

enum VendorType {
     BGP,
     BGQ,
     Freescale,
     IBM,
     ImaginationTechnologies,
     MipsTechnologies,
     NVIDIA,
     CSR,
-    LastVendorType = CSR
+    Myriad,
+    LastVendorType = Myriad
   };
   enum OSType {
     UnknownOS,
 
     CloudABI,
     Darwin,
     DragonFly,
     FreeBSD,

llvm/trunk/lib/Support/Triple.cpp

const char *Triple::getVendorTypeName(VendorType Kind) {
   case BGP: return "bgp";
   case BGQ: return "bgq";
   case Freescale: return "fsl";
   case IBM: return "ibm";
   case ImaginationTechnologies: return "img";
   case MipsTechnologies: return "mti";
   case NVIDIA: return "nvidia";
   case CSR: return "csr";
+  case Myriad: return "myriad";
   }
 
   llvm_unreachable("Invalid VendorType!");
 }
 
 const char *Triple::getOSTypeName(OSType Kind) {
   switch (Kind) {
   case UnknownOS: return "unknown";
return StringSwitch<Triple::VendorType>(VendorName)
     .Case("bgp", Triple::BGP)
     .Case("bgq", Triple::BGQ)
     .Case("fsl", Triple::Freescale)
     .Case("ibm", Triple::IBM)
     .Case("img", Triple::ImaginationTechnologies)
     .Case("mti", Triple::MipsTechnologies)
     .Case("nvidia", Triple::NVIDIA)
     .Case("csr", Triple::CSR)
+    .Case("myriad", Triple::Myriad)
     .Default(Triple::UnknownVendor);
 }
 
 static Triple::OSType parseOS(StringRef OSName) {
   return StringSwitch<Triple::OSType>(OSName)
     .StartsWith("cloudabi", Triple::CloudABI)
     .StartsWith("darwin", Triple::Darwin)
     .StartsWith("dragonfly", Triple::DragonFly)