hide this option


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21959 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/SparcV9/SparcV9TargetMachine.cpp b/lib/Target/SparcV9/SparcV9TargetMachine.cpp
index c9f8810..a84fbca 100644
--- a/lib/Target/SparcV9/SparcV9TargetMachine.cpp
+++ b/lib/Target/SparcV9/SparcV9TargetMachine.cpp
@@ -58,7 +58,7 @@
   cl::opt<bool> DisablePeephole("disable-peephole",
                                 cl::desc("Disable peephole optimization pass"));
 
-  cl::opt<bool, true> EmitMappingInfoOpt("enable-maps",
+  cl::opt<bool, true> EmitMappingInfoOpt("enable-maps", cl::ReallyHidden,
                  cl::location(EmitMappingInfo),
                  cl::init(false),
                  cl::desc("Emit LLVM-to-MachineCode mapping info to assembly"));