Shave another 27K off libllvmgcc.dylib with visibility hidden

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28973 91177308-0d34-0410-b5e6-96231b3b80d8

lib/CodeGen/SelectionDAG/ScheduleDAGList.cpp

@@ -26,6 +26,7 @@
 #include "llvm/Target/TargetMachine.h"
 #include "llvm/Target/TargetInstrInfo.h"
 #include "llvm/Support/Debug.h"
+#include "llvm/Support/Visibility.h"
 #include "llvm/ADT/Statistic.h"
 #include <climits>
 #include <iostream>
@@ -42,7 +43,7 @@ namespace {
 /// ScheduleDAGList - The actual list scheduler implementation.  This supports
 /// top-down scheduling.
 ///
-class ScheduleDAGList : public ScheduleDAG {
+class VISIBILITY_HIDDEN ScheduleDAGList : public ScheduleDAG {
 private:
   /// AvailableQueue - The priority queue to use for the available SUnits.
   ///

lib/CodeGen/SelectionDAG/ScheduleDAGRRList.cpp

@@ -23,6 +23,7 @@
 #include "llvm/Target/TargetMachine.h"
 #include "llvm/Target/TargetInstrInfo.h"
 #include "llvm/Support/Debug.h"
+#include "llvm/Support/Visibility.h"
 #include "llvm/ADT/Statistic.h"
 #include <climits>
 #include <iostream>
@@ -36,7 +37,7 @@ namespace {
 /// implementation.  This supports both top-down and bottom-up scheduling.
 ///
 
-class ScheduleDAGRRList : public ScheduleDAG {
+class VISIBILITY_HIDDEN ScheduleDAGRRList : public ScheduleDAG {
 private:
   /// isBottomUp - This is true if the scheduling problem is bottom-up, false if
   /// it is top-down.

lib/CodeGen/SelectionDAG/ScheduleDAGSimple.cpp

@@ -20,6 +20,7 @@
 #include "llvm/Target/TargetMachine.h"
 #include "llvm/Target/TargetInstrInfo.h"
 #include "llvm/Support/Debug.h"
+#include "llvm/Support/Visibility.h"
 #include <algorithm>
 #include <iostream>
 using namespace llvm;
@@ -389,7 +390,7 @@ public:
 ///
 /// ScheduleDAGSimple - Simple two pass scheduler.
 ///
-class ScheduleDAGSimple : public ScheduleDAG {
+class VISIBILITY_HIDDEN ScheduleDAGSimple : public ScheduleDAG {
 private:
   bool NoSched;                         // Just do a BFS schedule, nothing fancy
   bool NoItins;                         // Don't use itineraries?