Hide x86 symbols


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28976 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/X86/X86CodeEmitter.cpp b/lib/Target/X86/X86CodeEmitter.cpp
index c323433..9179890 100644
--- a/lib/Target/X86/X86CodeEmitter.cpp
+++ b/lib/Target/X86/X86CodeEmitter.cpp
@@ -22,6 +22,7 @@
 #include "llvm/CodeGen/Passes.h"
 #include "llvm/Function.h"
 #include "llvm/ADT/Statistic.h"
+#include "llvm/Support/Visibility.h"
 #include "llvm/Target/TargetOptions.h"
 #include <iostream>
 using namespace llvm;
@@ -32,7 +33,7 @@
 }
 
 namespace {
-  class Emitter : public MachineFunctionPass {
+  class VISIBILITY_HIDDEN Emitter : public MachineFunctionPass {
     const X86InstrInfo  *II;
     MachineCodeEmitter  &MCE;
     std::vector<std::pair<MachineBasicBlock *, unsigned> > BBRefs;