Shrink libllvmgcc.dylib by another 23K

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28972 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Transforms/Scalar/InstructionCombining.cpp

@@ -48,6 +48,7 @@
 #include "llvm/Support/InstVisitor.h"
 #include "llvm/Support/MathExtras.h"
 #include "llvm/Support/PatternMatch.h"
+#include "llvm/Support/Visibility.h"
 #include "llvm/ADT/Statistic.h"
 #include "llvm/ADT/STLExtras.h"
 #include <algorithm>
@@ -62,8 +63,9 @@ namespace {
   Statistic<> NumDeadStore("instcombine", "Number of dead stores eliminated");
   Statistic<> NumSunkInst ("instcombine", "Number of instructions sunk");
 
-  class InstCombiner : public FunctionPass,
-                       public InstVisitor<InstCombiner, Instruction*> {
+  class VISIBILITY_HIDDEN InstCombiner
+    : public FunctionPass,
+      public InstVisitor<InstCombiner, Instruction*> {
     // Worklist of all of the instructions that need to be simplified.
     std::vector<Instruction*> WorkList;
     TargetData *TD;

lib/Transforms/Scalar/LowerGC.cpp

@@ -26,10 +26,11 @@
 #include "llvm/Instructions.h"
 #include "llvm/Module.h"
 #include "llvm/Pass.h"
+#include "llvm/Support/Visibility.h"
 using namespace llvm;
 
 namespace {
-  class LowerGC : public FunctionPass {
+  class VISIBILITY_HIDDEN LowerGC : public FunctionPass {
     /// GCRootInt, GCReadInt, GCWriteInt - The function prototypes for the
     /// llvm.gcread/llvm.gcwrite/llvm.gcroot intrinsics.
     Function *GCRootInt, *GCReadInt, *GCWriteInt;

lib/Transforms/Utils/LowerInvoke.cpp

@@ -44,6 +44,7 @@
 #include "llvm/Transforms/Utils/Local.h"
 #include "llvm/ADT/Statistic.h"
 #include "llvm/Support/CommandLine.h"
+#include "llvm/Support/Visibility.h"
 #include <csetjmp>
 using namespace llvm;
 
@@ -55,7 +56,7 @@ namespace {
   cl::opt<bool> ExpensiveEHSupport("enable-correct-eh-support",
  cl::desc("Make the -lowerinvoke pass insert expensive, but correct, EH code"));
 
-  class LowerInvoke : public FunctionPass {
+  class VISIBILITY_HIDDEN LowerInvoke : public FunctionPass {
     // Used for both models.
     Function *WriteFn;
     Function *AbortFn;

lib/Transforms/Utils/LowerSwitch.cpp

@@ -20,6 +20,7 @@
 #include "llvm/Instructions.h"
 #include "llvm/Pass.h"
 #include "llvm/Support/Debug.h"
+#include "llvm/Support/Visibility.h"
 #include "llvm/ADT/Statistic.h"
 #include <algorithm>
 #include <iostream>
@@ -31,7 +32,7 @@ namespace {
   /// LowerSwitch Pass - Replace all SwitchInst instructions with chained branch
   /// instructions.  Note that this cannot be a BasicBlock pass because it
   /// modifies the CFG!
-  class LowerSwitch : public FunctionPass {
+  class VISIBILITY_HIDDEN LowerSwitch : public FunctionPass {
   public:
     virtual bool runOnFunction(Function &F);
     

lib/Transforms/Utils/Mem2Reg.cpp

@@ -20,12 +20,13 @@
 #include "llvm/Function.h"
 #include "llvm/Target/TargetData.h"
 #include "llvm/ADT/Statistic.h"
+#include "llvm/Support/Visibility.h"
 using namespace llvm;
 
 namespace {
   Statistic<> NumPromoted("mem2reg", "Number of alloca's promoted");
 
-  struct PromotePass : public FunctionPass {
+  struct VISIBILITY_HIDDEN PromotePass : public FunctionPass {
     // runOnFunction - To run this pass, first we calculate the alloca
     // instructions that are safe for promotion, then we promote each one.
     //