Adding the MicroBlaze backend.

The MicroBlaze is a highly configurable 32-bit soft-microprocessor for
use on Xilinx FPGAs. For more information see:
http://www.xilinx.com/tools/microblaze.htm
http://en.wikipedia.org/wiki/MicroBlaze

The current LLVM MicroBlaze backend generates assembly which can be
compiled using the an appropriate binutils assembler.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96969 91177308-0d34-0410-b5e6-96231b3b80d8

include/llvm/ADT/Triple.h

@@ -73,6 +73,7 @@ public:
     x86,     // X86: i[3-9]86
     x86_64,  // X86-64: amd64, x86_64
     xcore,   // XCore: xcore
+    mblaze,  // MBlaze: mblaze
 
     InvalidArch
   };