llvm-objdump: Ignore unreachable blocks when printing the CFG.

llvm-svn: 136000
diff --git a/llvm/tools/llvm-objdump/MCFunction.cpp b/llvm/tools/llvm-objdump/MCFunction.cpp
index 4a4f9d5..66c6c4c 100644
--- a/llvm/tools/llvm-objdump/MCFunction.cpp
+++ b/llvm/tools/llvm-objdump/MCFunction.cpp
@@ -54,6 +54,8 @@
           }
         }
         Splits.insert(Index+Size);
+      } else if (Desc.isReturn()) {
+        Splits.insert(Index+Size);
       }
 
       Instructions.push_back(MCDecodedInst(Index, Size, Inst));