Add support for the unwind instruction

llvm-svn: 8408
diff --git a/llvm/lib/Bytecode/Reader/InstructionReader.cpp b/llvm/lib/Bytecode/Reader/InstructionReader.cpp
index 603c205..8f256e4 100644
--- a/llvm/lib/Bytecode/Reader/InstructionReader.cpp
+++ b/llvm/lib/Bytecode/Reader/InstructionReader.cpp
@@ -421,6 +421,9 @@
     Res = new StoreInst(getValue(ValTy, Raw.Arg1), Ptr, Raw.Opcode == 63);
     return false;
   }
+  case Instruction::Unwind:
+    if (Raw.NumOperands != 0) return true;
+    return new UnwindInst();
   }  // end switch(Raw.Opcode) 
 
   std::cerr << "Unrecognized instruction! " << Raw.Opcode