diff --git a/lib/Target/ARM/ARMCodeEmitter.cpp b/lib/Target/ARM/ARMCodeEmitter.cpp
index 6f1c624..5911688 100644
--- a/lib/Target/ARM/ARMCodeEmitter.cpp
+++ b/lib/Target/ARM/ARMCodeEmitter.cpp
@@ -56,8 +56,7 @@
   };
 
   template<class CodeEmitter>
-  class VISIBILITY_HIDDEN Emitter : public MachineFunctionPass,
-                                    public ARMCodeEmitter {
+  class Emitter : public MachineFunctionPass, public ARMCodeEmitter {
     ARMJITInfo                *JTI;
     const ARMInstrInfo        *II;
     const TargetData          *TD;
diff --git a/lib/Target/ARM/ARMConstantIslandPass.cpp b/lib/Target/ARM/ARMConstantIslandPass.cpp
index c995ff2..8c8ecab 100644
--- a/lib/Target/ARM/ARMConstantIslandPass.cpp
+++ b/lib/Target/ARM/ARMConstantIslandPass.cpp
@@ -55,7 +55,7 @@
   ///   Water   - Potential places where an island could be formed.
   ///   CPE     - A constant pool entry that has been placed somewhere, which
   ///             tracks a list of users.
-  class VISIBILITY_HIDDEN ARMConstantIslands : public MachineFunctionPass {
+  class ARMConstantIslands : public MachineFunctionPass {
     /// BBSizes - The size of each MachineBasicBlock in bytes of code, indexed
     /// by MBB Number.  The two-byte pads required for Thumb alignment are
     /// counted as part of the following block (i.e., the offset and size for
diff --git a/lib/Target/ARM/ARMLoadStoreOptimizer.cpp b/lib/Target/ARM/ARMLoadStoreOptimizer.cpp
index c9b9e84..7e80534 100644
--- a/lib/Target/ARM/ARMLoadStoreOptimizer.cpp
+++ b/lib/Target/ARM/ARMLoadStoreOptimizer.cpp
@@ -56,7 +56,7 @@
 /// load / store instructions to form ldm / stm instructions.
 
 namespace {
-  struct VISIBILITY_HIDDEN ARMLoadStoreOpt : public MachineFunctionPass {
+  struct ARMLoadStoreOpt : public MachineFunctionPass {
     static char ID;
     ARMLoadStoreOpt() : MachineFunctionPass(&ID) {}
 
@@ -1106,7 +1106,7 @@
 /// likely they will be combined later.
 
 namespace {
-  struct VISIBILITY_HIDDEN ARMPreAllocLoadStoreOpt : public MachineFunctionPass{
+  struct ARMPreAllocLoadStoreOpt : public MachineFunctionPass{
     static char ID;
     ARMPreAllocLoadStoreOpt() : MachineFunctionPass(&ID) {}
 
diff --git a/lib/Target/ARM/NEONPreAllocPass.cpp b/lib/Target/ARM/NEONPreAllocPass.cpp
index 821b872..8b2bcd0 100644
--- a/lib/Target/ARM/NEONPreAllocPass.cpp
+++ b/lib/Target/ARM/NEONPreAllocPass.cpp
@@ -16,7 +16,7 @@
 using namespace llvm;
 
 namespace {
-  class VISIBILITY_HIDDEN NEONPreAllocPass : public MachineFunctionPass {
+  class NEONPreAllocPass : public MachineFunctionPass {
     const TargetInstrInfo *TII;
 
   public:
diff --git a/lib/Target/ARM/Thumb2ITBlockPass.cpp b/lib/Target/ARM/Thumb2ITBlockPass.cpp
index 427c0bb..6c3c4f6 100644
--- a/lib/Target/ARM/Thumb2ITBlockPass.cpp
+++ b/lib/Target/ARM/Thumb2ITBlockPass.cpp
@@ -21,7 +21,7 @@
 STATISTIC(NumITs,     "Number of IT blocks inserted");
 
 namespace {
-  struct VISIBILITY_HIDDEN Thumb2ITBlockPass : public MachineFunctionPass {
+  struct Thumb2ITBlockPass : public MachineFunctionPass {
     static char ID;
     Thumb2ITBlockPass() : MachineFunctionPass(&ID) {}
 
diff --git a/lib/Target/ARM/Thumb2SizeReduction.cpp b/lib/Target/ARM/Thumb2SizeReduction.cpp
index b8879d2..b212c0a 100644
--- a/lib/Target/ARM/Thumb2SizeReduction.cpp
+++ b/lib/Target/ARM/Thumb2SizeReduction.cpp
@@ -126,7 +126,7 @@
     { ARM::t2STM,   ARM::tSTM,    ARM::tPUSH,    0,   0,    1,   1,  1,1, 1 },
   };
 
-  class VISIBILITY_HIDDEN Thumb2SizeReduce : public MachineFunctionPass {
+  class Thumb2SizeReduce : public MachineFunctionPass {
   public:
     static char ID;
     Thumb2SizeReduce();
diff --git a/lib/Target/Alpha/AlphaBranchSelector.cpp b/lib/Target/Alpha/AlphaBranchSelector.cpp
index 719ffae..dd94bc9 100644
--- a/lib/Target/Alpha/AlphaBranchSelector.cpp
+++ b/lib/Target/Alpha/AlphaBranchSelector.cpp
@@ -21,7 +21,7 @@
 using namespace llvm;
 
 namespace {
-  struct VISIBILITY_HIDDEN AlphaBSel : public MachineFunctionPass {
+  struct AlphaBSel : public MachineFunctionPass {
     static char ID;
     AlphaBSel() : MachineFunctionPass(&ID) {}
 
diff --git a/lib/Target/Alpha/AlphaCodeEmitter.cpp b/lib/Target/Alpha/AlphaCodeEmitter.cpp
index 8023add..ea828c8 100644
--- a/lib/Target/Alpha/AlphaCodeEmitter.cpp
+++ b/lib/Target/Alpha/AlphaCodeEmitter.cpp
@@ -50,8 +50,7 @@
   };
 
   template <class CodeEmitter>
-  class VISIBILITY_HIDDEN Emitter : public MachineFunctionPass,
-      public AlphaCodeEmitter
+  class Emitter : public MachineFunctionPass, public AlphaCodeEmitter
   {
     const AlphaInstrInfo  *II;
     TargetMachine         &TM;
diff --git a/lib/Target/Alpha/AsmPrinter/AlphaAsmPrinter.cpp b/lib/Target/Alpha/AsmPrinter/AlphaAsmPrinter.cpp
index d8e8b79..d769746 100644
--- a/lib/Target/Alpha/AsmPrinter/AlphaAsmPrinter.cpp
+++ b/lib/Target/Alpha/AsmPrinter/AlphaAsmPrinter.cpp
@@ -37,7 +37,7 @@
 STATISTIC(EmittedInsts, "Number of machine instrs printed");
 
 namespace {
-  struct VISIBILITY_HIDDEN AlphaAsmPrinter : public AsmPrinter {
+  struct AlphaAsmPrinter : public AsmPrinter {
     /// Unique incrementer for label values for referencing Global values.
     ///
 
diff --git a/lib/Target/Blackfin/AsmPrinter/BlackfinAsmPrinter.cpp b/lib/Target/Blackfin/AsmPrinter/BlackfinAsmPrinter.cpp
index 91fd5dd..1900d00 100644
--- a/lib/Target/Blackfin/AsmPrinter/BlackfinAsmPrinter.cpp
+++ b/lib/Target/Blackfin/AsmPrinter/BlackfinAsmPrinter.cpp
@@ -38,7 +38,7 @@
 STATISTIC(EmittedInsts, "Number of machine instrs printed");
 
 namespace {
-  class VISIBILITY_HIDDEN BlackfinAsmPrinter : public AsmPrinter {
+  class BlackfinAsmPrinter : public AsmPrinter {
   public:
     BlackfinAsmPrinter(formatted_raw_ostream &O, TargetMachine &TM,
                        const MCAsmInfo *MAI, bool V)
diff --git a/lib/Target/CellSPU/AsmPrinter/SPUAsmPrinter.cpp b/lib/Target/CellSPU/AsmPrinter/SPUAsmPrinter.cpp
index 0f8d539..7db7ae4 100644
--- a/lib/Target/CellSPU/AsmPrinter/SPUAsmPrinter.cpp
+++ b/lib/Target/CellSPU/AsmPrinter/SPUAsmPrinter.cpp
@@ -50,7 +50,7 @@
 
   const std::string bss_section(".bss");
 
-  class VISIBILITY_HIDDEN SPUAsmPrinter : public AsmPrinter {
+  class SPUAsmPrinter : public AsmPrinter {
     std::set<std::string> FnStubs, GVStubs;
   public:
     explicit SPUAsmPrinter(formatted_raw_ostream &O, TargetMachine &TM,
@@ -285,7 +285,7 @@
   };
 
   /// LinuxAsmPrinter - SPU assembly printer, customized for Linux
-  class VISIBILITY_HIDDEN LinuxAsmPrinter : public SPUAsmPrinter {
+  class LinuxAsmPrinter : public SPUAsmPrinter {
   public:
     explicit LinuxAsmPrinter(formatted_raw_ostream &O, TargetMachine &TM,
                              const MCAsmInfo *T, bool V)
diff --git a/lib/Target/MSIL/MSILWriter.cpp b/lib/Target/MSIL/MSILWriter.cpp
index cf08a97..5899ab3 100644
--- a/lib/Target/MSIL/MSILWriter.cpp
+++ b/lib/Target/MSIL/MSILWriter.cpp
@@ -30,7 +30,7 @@
 
 namespace llvm {
   // TargetMachine for the MSIL 
-  struct VISIBILITY_HIDDEN MSILTarget : public TargetMachine {
+  struct MSILTarget : public TargetMachine {
     MSILTarget(const Target &T, const std::string &TT, const std::string &FS)
       : TargetMachine(T) {}
 
diff --git a/lib/Target/MSP430/AsmPrinter/MSP430AsmPrinter.cpp b/lib/Target/MSP430/AsmPrinter/MSP430AsmPrinter.cpp
index ace358e..b20d636 100644
--- a/lib/Target/MSP430/AsmPrinter/MSP430AsmPrinter.cpp
+++ b/lib/Target/MSP430/AsmPrinter/MSP430AsmPrinter.cpp
@@ -50,7 +50,7 @@
              cl::desc("enable experimental mcinst gunk in the msp430 backend"));
 
 namespace {
-  class VISIBILITY_HIDDEN MSP430AsmPrinter : public AsmPrinter {
+  class MSP430AsmPrinter : public AsmPrinter {
   public:
     MSP430AsmPrinter(formatted_raw_ostream &O, TargetMachine &TM,
                      const MCAsmInfo *MAI, bool V)
diff --git a/lib/Target/Mips/AsmPrinter/MipsAsmPrinter.cpp b/lib/Target/Mips/AsmPrinter/MipsAsmPrinter.cpp
index ccf9ee5..66ade89 100644
--- a/lib/Target/Mips/AsmPrinter/MipsAsmPrinter.cpp
+++ b/lib/Target/Mips/AsmPrinter/MipsAsmPrinter.cpp
@@ -51,7 +51,7 @@
 STATISTIC(EmittedInsts, "Number of machine instrs printed");
 
 namespace {
-  class VISIBILITY_HIDDEN MipsAsmPrinter : public AsmPrinter {
+  class MipsAsmPrinter : public AsmPrinter {
     const MipsSubtarget *Subtarget;
   public:
     explicit MipsAsmPrinter(formatted_raw_ostream &O, TargetMachine &TM, 
diff --git a/lib/Target/Mips/MipsISelDAGToDAG.cpp b/lib/Target/Mips/MipsISelDAGToDAG.cpp
index cc20dd7..be0feb1 100644
--- a/lib/Target/Mips/MipsISelDAGToDAG.cpp
+++ b/lib/Target/Mips/MipsISelDAGToDAG.cpp
@@ -46,7 +46,7 @@
 //===----------------------------------------------------------------------===//
 namespace {
 
-class VISIBILITY_HIDDEN MipsDAGToDAGISel : public SelectionDAGISel {
+class MipsDAGToDAGISel : public SelectionDAGISel {
 
   /// TM - Keep a reference to MipsTargetMachine.
   MipsTargetMachine &TM;
diff --git a/lib/Target/PIC16/PIC16MemSelOpt.cpp b/lib/Target/PIC16/PIC16MemSelOpt.cpp
index a97dc35..fb5affd 100644
--- a/lib/Target/PIC16/PIC16MemSelOpt.cpp
+++ b/lib/Target/PIC16/PIC16MemSelOpt.cpp
@@ -37,7 +37,7 @@
 using namespace llvm;
 
 namespace {
-  struct VISIBILITY_HIDDEN MemSelOpt : public MachineFunctionPass {
+  struct MemSelOpt : public MachineFunctionPass {
     static char ID;
     MemSelOpt() : MachineFunctionPass(&ID) {}
 
diff --git a/lib/Target/PowerPC/AsmPrinter/PPCAsmPrinter.cpp b/lib/Target/PowerPC/AsmPrinter/PPCAsmPrinter.cpp
index dc6b852..865240d 100644
--- a/lib/Target/PowerPC/AsmPrinter/PPCAsmPrinter.cpp
+++ b/lib/Target/PowerPC/AsmPrinter/PPCAsmPrinter.cpp
@@ -55,7 +55,7 @@
 STATISTIC(EmittedInsts, "Number of machine instrs printed");
 
 namespace {
-  class VISIBILITY_HIDDEN PPCAsmPrinter : public AsmPrinter {
+  class PPCAsmPrinter : public AsmPrinter {
   protected:
     struct FnStubInfo {
       std::string Stub, LazyPtr, AnonSymbol;
@@ -344,7 +344,7 @@
   };
 
   /// PPCLinuxAsmPrinter - PowerPC assembly printer, customized for Linux
-  class VISIBILITY_HIDDEN PPCLinuxAsmPrinter : public PPCAsmPrinter {
+  class PPCLinuxAsmPrinter : public PPCAsmPrinter {
   public:
     explicit PPCLinuxAsmPrinter(formatted_raw_ostream &O, TargetMachine &TM,
                                 const MCAsmInfo *T, bool V)
@@ -369,7 +369,7 @@
 
   /// PPCDarwinAsmPrinter - PowerPC assembly printer, customized for Darwin/Mac
   /// OS X
-  class VISIBILITY_HIDDEN PPCDarwinAsmPrinter : public PPCAsmPrinter {
+  class PPCDarwinAsmPrinter : public PPCAsmPrinter {
     formatted_raw_ostream &OS;
   public:
     explicit PPCDarwinAsmPrinter(formatted_raw_ostream &O, TargetMachine &TM,
diff --git a/lib/Target/PowerPC/PPCBranchSelector.cpp b/lib/Target/PowerPC/PPCBranchSelector.cpp
index b95a502..ad15456 100644
--- a/lib/Target/PowerPC/PPCBranchSelector.cpp
+++ b/lib/Target/PowerPC/PPCBranchSelector.cpp
@@ -30,7 +30,7 @@
 STATISTIC(NumExpanded, "Number of branches expanded to long format");
 
 namespace {
-  struct VISIBILITY_HIDDEN PPCBSel : public MachineFunctionPass {
+  struct PPCBSel : public MachineFunctionPass {
     static char ID;
     PPCBSel() : MachineFunctionPass(&ID) {}
 
diff --git a/lib/Target/PowerPC/PPCCodeEmitter.cpp b/lib/Target/PowerPC/PPCCodeEmitter.cpp
index 0675293..ccdc5fa 100644
--- a/lib/Target/PowerPC/PPCCodeEmitter.cpp
+++ b/lib/Target/PowerPC/PPCCodeEmitter.cpp
@@ -57,8 +57,7 @@
   };
 
   template <class CodeEmitter>
-  class VISIBILITY_HIDDEN Emitter : public MachineFunctionPass,
-      public PPCCodeEmitter {
+  class Emitter : public MachineFunctionPass, public PPCCodeEmitter {
     TargetMachine &TM;
     CodeEmitter &MCE;
 
diff --git a/lib/Target/PowerPC/PPCISelDAGToDAG.cpp b/lib/Target/PowerPC/PPCISelDAGToDAG.cpp
index 8fa6a66..a2e1850 100644
--- a/lib/Target/PowerPC/PPCISelDAGToDAG.cpp
+++ b/lib/Target/PowerPC/PPCISelDAGToDAG.cpp
@@ -41,7 +41,7 @@
   /// PPCDAGToDAGISel - PPC specific code to select PPC machine
   /// instructions for SelectionDAG operations.
   ///
-  class VISIBILITY_HIDDEN PPCDAGToDAGISel : public SelectionDAGISel {
+  class PPCDAGToDAGISel : public SelectionDAGISel {
     PPCTargetMachine &TM;
     PPCTargetLowering &PPCLowering;
     const PPCSubtarget &PPCSubTarget;
diff --git a/lib/Target/Sparc/AsmPrinter/SparcAsmPrinter.cpp b/lib/Target/Sparc/AsmPrinter/SparcAsmPrinter.cpp
index a3e5fba..452b46f 100644
--- a/lib/Target/Sparc/AsmPrinter/SparcAsmPrinter.cpp
+++ b/lib/Target/Sparc/AsmPrinter/SparcAsmPrinter.cpp
@@ -44,7 +44,7 @@
 STATISTIC(EmittedInsts, "Number of machine instrs printed");
 
 namespace {
-  class VISIBILITY_HIDDEN SparcAsmPrinter : public AsmPrinter {
+  class SparcAsmPrinter : public AsmPrinter {
     /// We name each basic block in a Function with a unique number, so
     /// that we can consistently refer to them later. This is cleared
     /// at the beginning of each call to runOnMachineFunction().
diff --git a/lib/Target/SystemZ/AsmPrinter/SystemZAsmPrinter.cpp b/lib/Target/SystemZ/AsmPrinter/SystemZAsmPrinter.cpp
index a128992..2192c15 100644
--- a/lib/Target/SystemZ/AsmPrinter/SystemZAsmPrinter.cpp
+++ b/lib/Target/SystemZ/AsmPrinter/SystemZAsmPrinter.cpp
@@ -42,7 +42,7 @@
 STATISTIC(EmittedInsts, "Number of machine instrs printed");
 
 namespace {
-  class VISIBILITY_HIDDEN SystemZAsmPrinter : public AsmPrinter {
+  class SystemZAsmPrinter : public AsmPrinter {
   public:
     SystemZAsmPrinter(formatted_raw_ostream &O, TargetMachine &TM,
                       const MCAsmInfo *MAI, bool V)
diff --git a/lib/Target/X86/X86CodeEmitter.cpp b/lib/Target/X86/X86CodeEmitter.cpp
index f942f3f..f8c18fe 100644
--- a/lib/Target/X86/X86CodeEmitter.cpp
+++ b/lib/Target/X86/X86CodeEmitter.cpp
@@ -43,7 +43,7 @@
 
 namespace {
   template<class CodeEmitter>
-  class VISIBILITY_HIDDEN Emitter : public MachineFunctionPass {
+  class Emitter : public MachineFunctionPass {
     const X86InstrInfo  *II;
     const TargetData    *TD;
     X86TargetMachine    &TM;
diff --git a/lib/Target/X86/X86FloatingPoint.cpp b/lib/Target/X86/X86FloatingPoint.cpp
index d9a05a8..86aefde 100644
--- a/lib/Target/X86/X86FloatingPoint.cpp
+++ b/lib/Target/X86/X86FloatingPoint.cpp
@@ -53,7 +53,7 @@
 STATISTIC(NumFP  , "Number of floating point instructions");
 
 namespace {
-  struct VISIBILITY_HIDDEN FPS : public MachineFunctionPass {
+  struct FPS : public MachineFunctionPass {
     static char ID;
     FPS() : MachineFunctionPass(&ID) {}
 
diff --git a/lib/Target/X86/X86FloatingPointRegKill.cpp b/lib/Target/X86/X86FloatingPointRegKill.cpp
index 3e0385c..19f5d80 100644
--- a/lib/Target/X86/X86FloatingPointRegKill.cpp
+++ b/lib/Target/X86/X86FloatingPointRegKill.cpp
@@ -30,7 +30,7 @@
 STATISTIC(NumFPKill, "Number of FP_REG_KILL instructions added");
 
 namespace {
-  struct VISIBILITY_HIDDEN FPRegKiller : public MachineFunctionPass {
+  struct FPRegKiller : public MachineFunctionPass {
     static char ID;
     FPRegKiller() : MachineFunctionPass(&ID) {}
 
diff --git a/lib/Target/X86/X86ISelDAGToDAG.cpp b/lib/Target/X86/X86ISelDAGToDAG.cpp
index 5b678fb..4ed7615 100644
--- a/lib/Target/X86/X86ISelDAGToDAG.cpp
+++ b/lib/Target/X86/X86ISelDAGToDAG.cpp
@@ -147,7 +147,7 @@
   /// ISel - X86 specific code to select X86 machine instructions for
   /// SelectionDAG operations.
   ///
-  class VISIBILITY_HIDDEN X86DAGToDAGISel : public SelectionDAGISel {
+  class X86DAGToDAGISel : public SelectionDAGISel {
     /// X86Lowering - This object fully describes how to lower LLVM code to an
     /// X86-specific SelectionDAG.
     X86TargetLowering &X86Lowering;
diff --git a/lib/Target/X86/X86RegisterInfo.cpp b/lib/Target/X86/X86RegisterInfo.cpp
index f03723a..24e832c 100644
--- a/lib/Target/X86/X86RegisterInfo.cpp
+++ b/lib/Target/X86/X86RegisterInfo.cpp
@@ -1473,7 +1473,7 @@
 #include "X86GenRegisterInfo.inc"
 
 namespace {
-  struct VISIBILITY_HIDDEN MSAC : public MachineFunctionPass {
+  struct MSAC : public MachineFunctionPass {
     static char ID;
     MSAC() : MachineFunctionPass(&ID) {}
 
diff --git a/lib/Target/XCore/AsmPrinter/XCoreAsmPrinter.cpp b/lib/Target/XCore/AsmPrinter/XCoreAsmPrinter.cpp
index e58edda..bc1bbc3 100644
--- a/lib/Target/XCore/AsmPrinter/XCoreAsmPrinter.cpp
+++ b/lib/Target/XCore/AsmPrinter/XCoreAsmPrinter.cpp
@@ -52,7 +52,7 @@
   cl::init(8));
 
 namespace {
-  class VISIBILITY_HIDDEN XCoreAsmPrinter : public AsmPrinter {
+  class XCoreAsmPrinter : public AsmPrinter {
     const XCoreSubtarget &Subtarget;
   public:
     explicit XCoreAsmPrinter(formatted_raw_ostream &O, TargetMachine &TM,