More PPC32 -> PPC changes, as well as merging some classes that were

redundant after the change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23759 91177308-0d34-0410-b5e6-96231b3b80d8

20 files changed, 152 insertions, 170 deletions

diff --git a/lib/Target/PowerPC/PPCAsmPrinter.cpp b/lib/Target/PowerPC/PPCAsmPrinter.cpp
index 670bc78..f158913 100644
--- a/lib/Target/PowerPC/PPCAsmPrinter.cpp
+++ b/lib/Target/PowerPC/PPCAsmPrinter.cpp
@@ -1,4 +1,4 @@
-//===-- PPCAsmPrinter.cpp - Print machine instrs to PowerPC assembly --===//
+//===-- PPCAsmPrinter.cpp - Print machine instrs to PowerPC assembly --------=//
 //
 //                     The LLVM Compiler Infrastructure
 //
@@ -57,8 +57,8 @@ namespace {
       return "PowerPC Assembly Printer";
     }
 
-    PowerPCTargetMachine &getTM() {
-      return static_cast<PowerPCTargetMachine&>(TM);
+    PPCTargetMachine &getTM() {
+      return static_cast<PPCTargetMachine&>(TM);
     }
 
     unsigned enumRegToMachineReg(unsigned enumReg) {
diff --git a/lib/Target/PowerPC/PPCBranchSelector.cpp b/lib/Target/PowerPC/PPCBranchSelector.cpp
index 0c07d81..7bd0afe 100644
--- a/lib/Target/PowerPC/PPCBranchSelector.cpp
+++ b/lib/Target/PowerPC/PPCBranchSelector.cpp
@@ -1,4 +1,4 @@
-//===-- PowerPCBranchSelector.cpp - Emit long conditional branches-*- C++ -*-=//
+//===-- PPCBranchSelector.cpp - Emit long conditional branches-----*- C++ -*-=//
 //
 //                     The LLVM Compiler Infrastructure
 //
@@ -107,7 +107,7 @@ namespace {
             int Displacement = OffsetMap[trueMBB] - ByteCount;
             unsigned Opcode = MBBI->getOperand(1).getImmedValue();
             unsigned CRReg = MBBI->getOperand(0).getReg();
-            unsigned Inverted = PPC32InstrInfo::invertPPCBranchOpcode(Opcode);
+            unsigned Inverted = PPCInstrInfo::invertPPCBranchOpcode(Opcode);
 
             if (Displacement >= -32768 && Displacement <= 32767) {
               BuildMI(*MBB, MBBJ, Opcode, 2).addReg(CRReg).addMBB(trueMBB);
diff --git a/lib/Target/PowerPC/PPCCodeEmitter.cpp b/lib/Target/PowerPC/PPCCodeEmitter.cpp
index d6f2f75..6a8df47 100644
--- a/lib/Target/PowerPC/PPCCodeEmitter.cpp
+++ b/lib/Target/PowerPC/PPCCodeEmitter.cpp
@@ -1,4 +1,4 @@
-//===-- PPCCodeEmitter.cpp - JIT Code Emitter for PowerPC32 -----*- C++ -*-=//
+//===-- PPCCodeEmitter.cpp - JIT Code Emitter for PowerPC32 -------*- C++ -*-=//
 //
 //                     The LLVM Compiler Infrastructure
 //
@@ -74,8 +74,8 @@ namespace {
 /// of functions.  This method should returns true if machine code emission is
 /// not supported.
 ///
-bool PPC32TargetMachine::addPassesToEmitMachineCode(FunctionPassManager &PM,
-                                                    MachineCodeEmitter &MCE) {
+bool PPCTargetMachine::addPassesToEmitMachineCode(FunctionPassManager &PM,
+                                                  MachineCodeEmitter &MCE) {
   // Machine code emitter pass for PowerPC
   PM.add(new PPCCodeEmitter(*this, MCE));
   // Delete machine code for this function after emitting it
diff --git a/lib/Target/PowerPC/PPCFrameInfo.h b/lib/Target/PowerPC/PPCFrameInfo.h
index d1bae8b..40305be 100644
--- a/lib/Target/PowerPC/PPCFrameInfo.h
+++ b/lib/Target/PowerPC/PPCFrameInfo.h
@@ -1,4 +1,4 @@
-//===-- PowerPCFrameInfo.h - Define TargetFrameInfo for PowerPC -*- C++ -*-===//
+//===-- PPCFrameInfo.h - Define TargetFrameInfo for PowerPC -----*- C++ -*-===//
 //
 //                     The LLVM Compiler Infrastructure
 //
@@ -8,7 +8,7 @@
 //===----------------------------------------------------------------------===//
 //
 //
-//----------------------------------------------------------------------------
+//===----------------------------------------------------------------------===//
 
 #ifndef POWERPC_FRAMEINFO_H
 #define POWERPC_FRAMEINFO_H
@@ -19,12 +19,12 @@
 
 namespace llvm {
 
-class PowerPCFrameInfo: public TargetFrameInfo {
+class PPCFrameInfo: public TargetFrameInfo {
   const TargetMachine &TM;
   std::pair<unsigned, int> LR[1];
 
 public:
-  PowerPCFrameInfo(const TargetMachine &tm, bool LP64)
+  PPCFrameInfo(const TargetMachine &tm, bool LP64)
     : TargetFrameInfo(TargetFrameInfo::StackGrowsDown, 16, 0), TM(tm) {
     LR[0].first = PPC::LR;
     LR[0].second = LP64 ? 16 : 8;
diff --git a/lib/Target/PowerPC/PPCISelDAGToDAG.cpp b/lib/Target/PowerPC/PPCISelDAGToDAG.cpp
index 9c35688..9b5c7d6 100644
--- a/lib/Target/PowerPC/PPCISelDAGToDAG.cpp
+++ b/lib/Target/PowerPC/PPCISelDAGToDAG.cpp
@@ -1,4 +1,4 @@
-//===-- PPC32ISelDAGToDAG.cpp - PPC32 pattern matching inst selector ------===//
+//===-- PPCISelDAGToDAG.cpp - PPC --pattern matching inst selector --------===//
 //
 //                     The LLVM Compiler Infrastructure
 //
@@ -7,7 +7,7 @@
 //
 //===----------------------------------------------------------------------===//
 //
-// This file defines a pattern matching instruction selector for 32 bit PowerPC,
+// This file defines a pattern matching instruction selector for PowerPC,
 // converting from a legalized dag to a PPC dag.
 //
 //===----------------------------------------------------------------------===//
@@ -37,11 +37,11 @@ namespace {
   /// instructions for SelectionDAG operations.
   ///
   class PPC32DAGToDAGISel : public SelectionDAGISel {
-    PPC32TargetLowering PPC32Lowering;
+    PPCTargetLowering PPCLowering;
     unsigned GlobalBaseReg;
   public:
     PPC32DAGToDAGISel(TargetMachine &TM)
-      : SelectionDAGISel(PPC32Lowering), PPC32Lowering(TM) {}
+      : SelectionDAGISel(PPCLowering), PPCLowering(TM) {}
     
     virtual bool runOnFunction(Function &Fn) {
       // Make sure we re-emit a set of the global base reg if necessary
diff --git a/lib/Target/PowerPC/PPCISelLowering.cpp b/lib/Target/PowerPC/PPCISelLowering.cpp
index 604ff2f..8247c30 100644
--- a/lib/Target/PowerPC/PPCISelLowering.cpp
+++ b/lib/Target/PowerPC/PPCISelLowering.cpp
@@ -1,4 +1,4 @@
-//===-- PPC32ISelLowering.cpp - PPC32 DAG Lowering Implementation ---------===//
+//===-- PPCISelLowering.cpp - PPC32 DAG Lowering Implementation -----------===//
 //
 //                     The LLVM Compiler Infrastructure
 //
@@ -7,7 +7,7 @@
 //
 //===----------------------------------------------------------------------===//
 //
-// This file implements the PPC32ISelLowering class.
+// This file implements the PPCISelLowering class.
 //
 //===----------------------------------------------------------------------===//
 
@@ -22,7 +22,7 @@
 #include "llvm/Function.h"
 using namespace llvm;
 
-PPC32TargetLowering::PPC32TargetLowering(TargetMachine &TM)
+PPCTargetLowering::PPCTargetLowering(TargetMachine &TM)
   : TargetLowering(TM) {
     
   // Fold away setcc operations if possible.
@@ -125,7 +125,7 @@ static bool isFloatingPointZero(SDOperand Op) {
 
 /// LowerOperation - Provide custom lowering hooks for some operations.
 ///
-SDOperand PPC32TargetLowering::LowerOperation(SDOperand Op, SelectionDAG &DAG) {
+SDOperand PPCTargetLowering::LowerOperation(SDOperand Op, SelectionDAG &DAG) {
   switch (Op.getOpcode()) {
   default: assert(0 && "Wasn't expecting to be able to lower this!"); 
   case ISD::FP_TO_SINT: {
@@ -311,7 +311,7 @@ SDOperand PPC32TargetLowering::LowerOperation(SDOperand Op, SelectionDAG &DAG) {
 }
 
 std::vector<SDOperand>
-PPC32TargetLowering::LowerArguments(Function &F, SelectionDAG &DAG) {
+PPCTargetLowering::LowerArguments(Function &F, SelectionDAG &DAG) {
   //
   // add beautiful description of PPC stack frame format, or at least some docs
   //
@@ -490,11 +490,11 @@ PPC32TargetLowering::LowerArguments(Function &F, SelectionDAG &DAG) {
 }
 
 std::pair<SDOperand, SDOperand>
-PPC32TargetLowering::LowerCallTo(SDOperand Chain,
-                                 const Type *RetTy, bool isVarArg,
-                                 unsigned CallingConv, bool isTailCall,
-                                 SDOperand Callee, ArgListTy &Args,
-                                 SelectionDAG &DAG) {
+PPCTargetLowering::LowerCallTo(SDOperand Chain,
+                               const Type *RetTy, bool isVarArg,
+                               unsigned CallingConv, bool isTailCall,
+                               SDOperand Callee, ArgListTy &Args,
+                               SelectionDAG &DAG) {
   // args_to_use will accumulate outgoing args for the ISD::CALL case in
   // SelectExpr to use to put the arguments in the appropriate registers.
   std::vector<SDOperand> args_to_use;
@@ -687,8 +687,8 @@ PPC32TargetLowering::LowerCallTo(SDOperand Chain,
   return std::make_pair(RetVal, Chain);
 }
 
-SDOperand PPC32TargetLowering::LowerVAStart(SDOperand Chain, SDOperand VAListP,
-                                            Value *VAListV, SelectionDAG &DAG) {
+SDOperand PPCTargetLowering::LowerVAStart(SDOperand Chain, SDOperand VAListP,
+                                          Value *VAListV, SelectionDAG &DAG) {
   // vastart just stores the address of the VarArgsFrameIndex slot into the
   // memory location argument.
   SDOperand FR = DAG.getFrameIndex(VarArgsFrameIndex, MVT::i32);
@@ -697,9 +697,9 @@ SDOperand PPC32TargetLowering::LowerVAStart(SDOperand Chain, SDOperand VAListP,
 }
 
 std::pair<SDOperand,SDOperand>
-PPC32TargetLowering::LowerVAArg(SDOperand Chain,
-                                SDOperand VAListP, Value *VAListV,
-                                const Type *ArgTy, SelectionDAG &DAG) {
+PPCTargetLowering::LowerVAArg(SDOperand Chain,
+                              SDOperand VAListP, Value *VAListV,
+                              const Type *ArgTy, SelectionDAG &DAG) {
   MVT::ValueType ArgVT = getValueType(ArgTy);
   
   SDOperand VAList =
@@ -721,7 +721,7 @@ PPC32TargetLowering::LowerVAArg(SDOperand Chain,
 }
 
 
-std::pair<SDOperand, SDOperand> PPC32TargetLowering::
+std::pair<SDOperand, SDOperand> PPCTargetLowering::
 LowerFrameReturnAddress(bool isFrameAddress, SDOperand Chain, unsigned Depth,
                         SelectionDAG &DAG) {
   assert(0 && "LowerFrameReturnAddress unimplemented");
@@ -729,8 +729,8 @@ LowerFrameReturnAddress(bool isFrameAddress, SDOperand Chain, unsigned Depth,
 }
 
 MachineBasicBlock *
-PPC32TargetLowering::InsertAtEndOfBasicBlock(MachineInstr *MI,
-                                             MachineBasicBlock *BB) {
+PPCTargetLowering::InsertAtEndOfBasicBlock(MachineInstr *MI,
+                                           MachineBasicBlock *BB) {
   assert((MI->getOpcode() == PPC::SELECT_CC_Int ||
           MI->getOpcode() == PPC::SELECT_CC_F4 ||
           MI->getOpcode() == PPC::SELECT_CC_F8) &&
diff --git a/lib/Target/PowerPC/PPCISelLowering.h b/lib/Target/PowerPC/PPCISelLowering.h
index ba0a577..0b3690d 100644
--- a/lib/Target/PowerPC/PPCISelLowering.h
+++ b/lib/Target/PowerPC/PPCISelLowering.h
@@ -1,4 +1,4 @@
-//===-- PPC32ISelLowering.h - PPC32 DAG Lowering Interface ------*- C++ -*-===//
+//===-- PPCISelLowering.h - PPC32 DAG Lowering Interface --------*- C++ -*-===//
 //
 //                     The LLVM Compiler Infrastructure
 //
@@ -41,11 +41,11 @@ namespace llvm {
     };
   }  
   
-  class PPC32TargetLowering : public TargetLowering {
+  class PPCTargetLowering : public TargetLowering {
     int VarArgsFrameIndex;            // FrameIndex for start of varargs area.
     int ReturnAddrIndex;              // FrameIndex for return slot.
   public:
-    PPC32TargetLowering(TargetMachine &TM);
+    PPCTargetLowering(TargetMachine &TM);
     
     /// LowerOperation - Provide custom lowering hooks for some operations.
     ///
diff --git a/lib/Target/PowerPC/PPCISelPattern.cpp b/lib/Target/PowerPC/PPCISelPattern.cpp
index 31d6e7f..e5e11f9 100644
--- a/lib/Target/PowerPC/PPCISelPattern.cpp
+++ b/lib/Target/PowerPC/PPCISelPattern.cpp
@@ -44,7 +44,7 @@ Statistic<> FrameOff("ppc-codegen", "Number of frame idx offsets collapsed");
 //===--------------------------------------------------------------------===//
 
 class ISel : public SelectionDAGISel {
-  PPC32TargetLowering PPC32Lowering;
+  PPCTargetLowering PPCLowering;
   SelectionDAG *ISelDAG;  // Hack to support us having a dag->dag transform
                           // for sdiv and udiv until it is put into the future
                           // dag combiner.
@@ -58,7 +58,7 @@ class ISel : public SelectionDAGISel {
   bool GlobalBaseInitialized;
   bool RecordSuccess;
 public:
-  ISel(TargetMachine &TM) : SelectionDAGISel(PPC32Lowering), PPC32Lowering(TM),
+  ISel(TargetMachine &TM) : SelectionDAGISel(PPCLowering), PPCLowering(TM),
                             ISelDAG(0) {}
 
   /// runOnFunction - Override this function in order to reset our per-function
diff --git a/lib/Target/PowerPC/PPCInstrBuilder.h b/lib/Target/PowerPC/PPCInstrBuilder.h
index ab774e2..b97178f 100644
--- a/lib/Target/PowerPC/PPCInstrBuilder.h
+++ b/lib/Target/PowerPC/PPCInstrBuilder.h
@@ -1,4 +1,4 @@
-//===-- PowerPCInstrBuilder.h - Aides for building PPC insts ----*- C++ -*-===//
+//===-- PPCInstrBuilder.h - Aides for building PPC insts --------*- C++ -*-===//
 //
 //                     The LLVM Compiler Infrastructure
 //
diff --git a/lib/Target/PowerPC/PPCInstrInfo.cpp b/lib/Target/PowerPC/PPCInstrInfo.cpp
index 314b748..2f76659 100644
--- a/lib/Target/PowerPC/PPCInstrInfo.cpp
+++ b/lib/Target/PowerPC/PPCInstrInfo.cpp
@@ -1,4 +1,4 @@
-//===- PPC32InstrInfo.cpp - PowerPC32 Instruction Information ---*- C++ -*-===//
+//===- PPCInstrInfo.cpp - PowerPC32 Instruction Information -----*- C++ -*-===//
 //
 //                     The LLVM Compiler Infrastructure
 //
@@ -18,12 +18,12 @@
 #include <iostream>
 using namespace llvm;
 
-PPC32InstrInfo::PPC32InstrInfo()
+PPCInstrInfo::PPCInstrInfo()
   : TargetInstrInfo(PPCInsts, sizeof(PPCInsts)/sizeof(PPCInsts[0])) {}
 
-bool PPC32InstrInfo::isMoveInstr(const MachineInstr& MI,
-                                 unsigned& sourceReg,
-                                 unsigned& destReg) const {
+bool PPCInstrInfo::isMoveInstr(const MachineInstr& MI,
+                               unsigned& sourceReg,
+                               unsigned& destReg) const {
   MachineOpCode oc = MI.getOpcode();
   if (oc == PPC::OR) {                      // or r1, r2, r2
     assert(MI.getNumOperands() == 3 &&
@@ -80,7 +80,7 @@ bool PPC32InstrInfo::isMoveInstr(const MachineInstr& MI,
 
 // commuteInstruction - We can commute rlwimi instructions, but only if the
 // rotate amt is zero.  We also have to munge the immediates a bit.
-MachineInstr *PPC32InstrInfo::commuteInstruction(MachineInstr *MI) const {
+MachineInstr *PPCInstrInfo::commuteInstruction(MachineInstr *MI) const {
   // Normal instructions can be commuted the obvious way.
   if (MI->getOpcode() != PPC::RLWIMI)
     return TargetInstrInfo::commuteInstruction(MI);
diff --git a/lib/Target/PowerPC/PPCInstrInfo.h b/lib/Target/PowerPC/PPCInstrInfo.h
index 631bce1..da92dcf 100644
--- a/lib/Target/PowerPC/PPCInstrInfo.h
+++ b/lib/Target/PowerPC/PPCInstrInfo.h
@@ -1,4 +1,4 @@
-//===- PPC32InstrInfo.h - PowerPC32 Instruction Information -----*- C++ -*-===//
+//===- PPCInstrInfo.h - PowerPC32 Instruction Information -------*- C++ -*-===//
 //
 //                     The LLVM Compiler Infrastructure
 //
@@ -20,10 +20,10 @@
 
 namespace llvm {
   
-class PPC32InstrInfo : public TargetInstrInfo {
-  const PPC32RegisterInfo RI;
+class PPCInstrInfo : public TargetInstrInfo {
+  const PPCRegisterInfo RI;
 public:
-  PPC32InstrInfo();
+  PPCInstrInfo();
 
   /// getRegisterInfo - TargetInstrInfo is a superset of MRegister info.  As
   /// such, whenever a client has an instance of instruction info, it should
diff --git a/lib/Target/PowerPC/PPCJITInfo.cpp b/lib/Target/PowerPC/PPCJITInfo.cpp
index 3045560..872dff2 100644
--- a/lib/Target/PowerPC/PPCJITInfo.cpp
+++ b/lib/Target/PowerPC/PPCJITInfo.cpp
@@ -1,4 +1,4 @@
-//===-- PPC32JITInfo.cpp - Implement the JIT interfaces for the PowerPC ---===//
+//===-- PPCJITInfo.cpp - Implement the JIT interfaces for the PowerPC -----===//
 //
 //                     The LLVM Compiler Infrastructure
 //
@@ -154,12 +154,12 @@ extern "C" void PPC32CompilationCallbackC(unsigned *IntRegs, double *FPRegs) {
 
 
 TargetJITInfo::LazyResolverFn
-PPC32JITInfo::getLazyResolverFunction(JITCompilerFn Fn) {
+PPCJITInfo::getLazyResolverFunction(JITCompilerFn Fn) {
   JITCompilerFunction = Fn;
   return PPC32CompilationCallback;
 }
 
-void *PPC32JITInfo::emitFunctionStub(void *Fn, MachineCodeEmitter &MCE) {
+void *PPCJITInfo::emitFunctionStub(void *Fn, MachineCodeEmitter &MCE) {
   // If this is just a call to an external function, emit a branch instead of a
   // call.  The code is the same except for one bit of the last instruction.
   if (Fn != PPC32CompilationCallback) {
@@ -187,8 +187,8 @@ void *PPC32JITInfo::emitFunctionStub(void *Fn, MachineCodeEmitter &MCE) {
 }
 
 
-void PPC32JITInfo::relocate(void *Function, MachineRelocation *MR,
-                            unsigned NumRelocs, unsigned char* GOTBase) {
+void PPCJITInfo::relocate(void *Function, MachineRelocation *MR,
+                          unsigned NumRelocs, unsigned char* GOTBase) {
   for (unsigned i = 0; i != NumRelocs; ++i, ++MR) {
     unsigned *RelocPos = (unsigned*)Function + MR->getMachineCodeOffset()/4;
     intptr_t ResultPtr = (intptr_t)MR->getResultPointer();
@@ -238,6 +238,6 @@ void PPC32JITInfo::relocate(void *Function, MachineRelocation *MR,
   }
 }
 
-void PPC32JITInfo::replaceMachineCodeForFunction(void *Old, void *New) {
+void PPCJITInfo::replaceMachineCodeForFunction(void *Old, void *New) {
   EmitBranchToAt(Old, New, false);
 }
diff --git a/lib/Target/PowerPC/PPCJITInfo.h b/lib/Target/PowerPC/PPCJITInfo.h
index 9a24ee6..39a706f 100644
--- a/lib/Target/PowerPC/PPCJITInfo.h
+++ b/lib/Target/PowerPC/PPCJITInfo.h
@@ -19,24 +19,18 @@
 namespace llvm {
   class TargetMachine;
 
-  // FIXME: Merge into one PPCJITInfo class.
-  class PowerPCJITInfo : public TargetJITInfo {
+  class PPCJITInfo : public TargetJITInfo {
   protected:
     TargetMachine &TM;
   public:
-    PowerPCJITInfo(TargetMachine &tm) : TM(tm) {useGOT = 0;}
+    PPCJITInfo(TargetMachine &tm) : TM(tm) {useGOT = 0;}
 
     /// addPassesToJITCompile - Add passes to the specified pass manager to
     /// implement a fast dynamic compiler for this target.  Return true if this
     /// is not supported for this target.
     ///
     virtual void addPassesToJITCompile(FunctionPassManager &PM);
-  };
-  
-  class PPC32JITInfo : public PowerPCJITInfo {
-  public:
-    PPC32JITInfo(TargetMachine &tm) : PowerPCJITInfo(tm) {}
-    
+
     virtual void *emitFunctionStub(void *Fn, MachineCodeEmitter &MCE);
     virtual LazyResolverFn getLazyResolverFunction(JITCompilerFn);
     virtual void relocate(void *Function, MachineRelocation *MR,
diff --git a/lib/Target/PowerPC/PPCRegisterInfo.cpp b/lib/Target/PowerPC/PPCRegisterInfo.cpp
index 8e2e19f..9f71dd5 100644
--- a/lib/Target/PowerPC/PPCRegisterInfo.cpp
+++ b/lib/Target/PowerPC/PPCRegisterInfo.cpp
@@ -1,4 +1,4 @@
-//===- PPC32RegisterInfo.cpp - PowerPC32 Register Information ---*- C++ -*-===//
+//===- PPCRegisterInfo.cpp - PowerPC Register Information -------*- C++ -*-===//
 //
 //                     The LLVM Compiler Infrastructure
 //
@@ -7,7 +7,7 @@
 //
 //===----------------------------------------------------------------------===//
 //
-// This file contains the PowerPC32 implementation of the MRegisterInfo class.
+// This file contains the PowerPC implementation of the MRegisterInfo class.
 //
 //===----------------------------------------------------------------------===//
 
@@ -31,7 +31,7 @@
 #include <iostream>
 using namespace llvm;
 
-PPC32RegisterInfo::PPC32RegisterInfo()
+PPCRegisterInfo::PPCRegisterInfo()
   : PPCGenRegisterInfo(PPC::ADJCALLSTACKDOWN, PPC::ADJCALLSTACKUP) {
   ImmToIdxMap[PPC::LD]   = PPC::LDX;    ImmToIdxMap[PPC::STD]  = PPC::STDX;
   ImmToIdxMap[PPC::LBZ]  = PPC::LBZX;   ImmToIdxMap[PPC::STB]  = PPC::STBX;
@@ -44,10 +44,10 @@ PPC32RegisterInfo::PPC32RegisterInfo()
 }
 
 void
-PPC32RegisterInfo::storeRegToStackSlot(MachineBasicBlock &MBB,
-                                       MachineBasicBlock::iterator MI,
-                                       unsigned SrcReg, int FrameIdx,
-                                       const TargetRegisterClass *RC) const {
+PPCRegisterInfo::storeRegToStackSlot(MachineBasicBlock &MBB,
+                                     MachineBasicBlock::iterator MI,
+                                     unsigned SrcReg, int FrameIdx,
+                                     const TargetRegisterClass *RC) const {
   if (SrcReg == PPC::LR) {
     BuildMI(MBB, MI, PPC::MFLR, 1, PPC::R11);
     addFrameReference(BuildMI(MBB, MI, PPC::STW, 3).addReg(PPC::R11), FrameIdx);
@@ -67,7 +67,7 @@ PPC32RegisterInfo::storeRegToStackSlot(MachineBasicBlock &MBB,
 }
 
 void
-PPC32RegisterInfo::loadRegFromStackSlot(MachineBasicBlock &MBB,
+PPCRegisterInfo::loadRegFromStackSlot(MachineBasicBlock &MBB,
                                         MachineBasicBlock::iterator MI,
                                         unsigned DestReg, int FrameIdx,
                                         const TargetRegisterClass *RC) const {
@@ -89,10 +89,10 @@ PPC32RegisterInfo::loadRegFromStackSlot(MachineBasicBlock &MBB,
   }
 }
 
-void PPC32RegisterInfo::copyRegToReg(MachineBasicBlock &MBB,
-                                     MachineBasicBlock::iterator MI,
-                                     unsigned DestReg, unsigned SrcReg,
-                                     const TargetRegisterClass *RC) const {
+void PPCRegisterInfo::copyRegToReg(MachineBasicBlock &MBB,
+                                   MachineBasicBlock::iterator MI,
+                                   unsigned DestReg, unsigned SrcReg,
+                                   const TargetRegisterClass *RC) const {
   MachineInstr *I;
 
   if (RC == PPC32::GPRCRegisterClass) {
@@ -109,8 +109,8 @@ void PPC32RegisterInfo::copyRegToReg(MachineBasicBlock &MBB,
   }
 }
 
-unsigned PPC32RegisterInfo::isLoadFromStackSlot(MachineInstr *MI, 
-                                                int &FrameIndex) const {
+unsigned PPCRegisterInfo::isLoadFromStackSlot(MachineInstr *MI, 
+                                              int &FrameIndex) const {
   switch (MI->getOpcode()) {
   default: break;
   case PPC::LWZ:
@@ -128,9 +128,9 @@ unsigned PPC32RegisterInfo::isLoadFromStackSlot(MachineInstr *MI,
 
 /// foldMemoryOperand - PowerPC (like most RISC's) can only fold spills into
 /// copy instructions, turning them into load/store instructions.
-MachineInstr *PPC32RegisterInfo::foldMemoryOperand(MachineInstr *MI,
-                                                   unsigned OpNum,
-                                                   int FrameIndex) const {
+MachineInstr *PPCRegisterInfo::foldMemoryOperand(MachineInstr *MI,
+                                                 unsigned OpNum,
+                                                 int FrameIndex) const {
   // Make sure this is a reg-reg copy.  Note that we can't handle MCRF, because
   // it takes more than one instruction to store it.
   unsigned Opc = MI->getOpcode();
@@ -180,7 +180,7 @@ static bool hasFP(MachineFunction &MF) {
   return NoFramePointerElim || MF.getFrameInfo()->hasVarSizedObjects();
 }
 
-void PPC32RegisterInfo::
+void PPCRegisterInfo::
 eliminateCallFramePseudoInstr(MachineFunction &MF, MachineBasicBlock &MBB,
                               MachineBasicBlock::iterator I) const {
   if (hasFP(MF)) {
@@ -211,7 +211,7 @@ eliminateCallFramePseudoInstr(MachineFunction &MF, MachineBasicBlock &MBB,
 }
 
 void
-PPC32RegisterInfo::eliminateFrameIndex(MachineBasicBlock::iterator II) const {
+PPCRegisterInfo::eliminateFrameIndex(MachineBasicBlock::iterator II) const {
   unsigned i = 0;
   MachineInstr &MI = *II;
   MachineBasicBlock &MBB = *MI.getParent();
@@ -261,7 +261,7 @@ PPC32RegisterInfo::eliminateFrameIndex(MachineBasicBlock::iterator II) const {
 }
 
 
-void PPC32RegisterInfo::emitPrologue(MachineFunction &MF) const {
+void PPCRegisterInfo::emitPrologue(MachineFunction &MF) const {
   MachineBasicBlock &MBB = MF.front();   // Prolog goes in entry BB
   MachineBasicBlock::iterator MBBI = MBB.begin();
   MachineFrameInfo *MFI = MF.getFrameInfo();
@@ -320,8 +320,8 @@ void PPC32RegisterInfo::emitPrologue(MachineFunction &MF) const {
   }
 }
 
-void PPC32RegisterInfo::emitEpilogue(MachineFunction &MF,
-                                     MachineBasicBlock &MBB) const {
+void PPCRegisterInfo::emitEpilogue(MachineFunction &MF,
+                                   MachineBasicBlock &MBB) const {
   const MachineFrameInfo *MFI = MF.getFrameInfo();
   MachineBasicBlock::iterator MBBI = prior(MBB.end());
   MachineInstr *MI;
diff --git a/lib/Target/PowerPC/PPCRegisterInfo.h b/lib/Target/PowerPC/PPCRegisterInfo.h
index e9ef9ce..ccb757c 100644
--- a/lib/Target/PowerPC/PPCRegisterInfo.h
+++ b/lib/Target/PowerPC/PPCRegisterInfo.h
@@ -1,4 +1,4 @@
-//===- PPC32RegisterInfo.h - PowerPC32 Register Information Impl -*- C++ -*-==//
+//===- PPCRegisterInfo.h - PowerPC Register Information Impl -----*- C++ -*-==//
 //
 //                     The LLVM Compiler Infrastructure
 //
@@ -22,10 +22,10 @@ namespace llvm {
 
 class Type;
 
-class PPC32RegisterInfo : public PPCGenRegisterInfo {
+class PPCRegisterInfo : public PPCGenRegisterInfo {
   std::map<unsigned, unsigned> ImmToIdxMap;
 public:
-  PPC32RegisterInfo();
+  PPCRegisterInfo();
 
   /// Code Generation virtual methods...
   void storeRegToStackSlot(MachineBasicBlock &MBB,
diff --git a/lib/Target/PowerPC/PPCRelocations.h b/lib/Target/PowerPC/PPCRelocations.h
index f6c9384..77c3519 100644
--- a/lib/Target/PowerPC/PPCRelocations.h
+++ b/lib/Target/PowerPC/PPCRelocations.h
@@ -1,4 +1,4 @@
-//===- PPC32Relocations.h - PPC32 Code Relocations --------------*- C++ -*-===//
+//===- PPCRelocations.h - PPC32 Code Relocations ----------------*- C++ -*-===//
 //
 //                     The LLVM Compiler Infrastructure
 //
diff --git a/lib/Target/PowerPC/PPCSubtarget.h b/lib/Target/PowerPC/PPCSubtarget.h
index 45fbd3c..03fcba0 100644
--- a/lib/Target/PowerPC/PPCSubtarget.h
+++ b/lib/Target/PowerPC/PPCSubtarget.h
@@ -1,4 +1,4 @@
-//=====-- PowerPCSubtarget.h - Define Subtarget for the PPC ---*- C++ -*--====//
+//=====-- PPCSubtarget.h - Define Subtarget for the PPC -------*- C++ -*--====//
 //
 //                     The LLVM Compiler Infrastructure
 //
diff --git a/lib/Target/PowerPC/PPCTargetMachine.cpp b/lib/Target/PowerPC/PPCTargetMachine.cpp
index a222f8c..a019e0d 100644
--- a/lib/Target/PowerPC/PPCTargetMachine.cpp
+++ b/lib/Target/PowerPC/PPCTargetMachine.cpp
@@ -1,4 +1,4 @@
-//===-- PowerPCTargetMachine.cpp - Define TargetMachine for PowerPC -------===//
+//===-- PPCTargetMachine.cpp - Define TargetMachine for PowerPC -----------===//
 //
 //                     The LLVM Compiler Infrastructure
 //
@@ -29,30 +29,15 @@
 using namespace llvm;
 
 namespace {
-  const char *PPC32ID = "PowerPC/32bit";
-
   static cl::opt<bool> DisablePPCDAGDAG("disable-ppc-dag-isel", cl::Hidden,
                              cl::desc("Disable DAG-to-DAG isel for PPC"));
   
   // Register the targets
-  RegisterTarget<PPC32TargetMachine>
-  X("ppc32", "  PowerPC 32-bit");
+  RegisterTarget<PPCTargetMachine>
+  X("ppc32", "  PowerPC");
 }
 
-PowerPCTargetMachine::PowerPCTargetMachine(const std::string &name,
-                                           IntrinsicLowering *IL,
-                                           const Module &M,
-                                           const std::string &FS,
-                                           const TargetData &TD,
-                                           const PowerPCFrameInfo &TFI)
-: TargetMachine(name, IL, TD), FrameInfo(TFI), Subtarget(M, FS) {
-  if (TargetDefault == PPCTarget) {
-    if (Subtarget.isAIX()) PPCTarget = TargetAIX;
-    if (Subtarget.isDarwin()) PPCTarget = TargetDarwin;
-  }
-}
-
-unsigned PPC32TargetMachine::getJITMatchQuality() {
+unsigned PPCTargetMachine::getJITMatchQuality() {
 #if defined(__POWERPC__) || defined (__ppc__) || defined(_POWER)
   return 10;
 #else
@@ -60,12 +45,38 @@ unsigned PPC32TargetMachine::getJITMatchQuality() {
 #endif
 }
 
+unsigned PPCTargetMachine::getModuleMatchQuality(const Module &M) {
+  // We strongly match "powerpc-*".
+  std::string TT = M.getTargetTriple();
+  if (TT.size() >= 8 && std::string(TT.begin(), TT.begin()+8) == "powerpc-")
+    return 20;
+  
+  if (M.getEndianness()  == Module::BigEndian &&
+      M.getPointerSize() == Module::Pointer32)
+    return 10;                                   // Weak match
+  else if (M.getEndianness() != Module::AnyEndianness ||
+           M.getPointerSize() != Module::AnyPointerSize)
+    return 0;                                    // Match for some other target
+  
+  return getJITMatchQuality()/2;
+}
+
+PPCTargetMachine::PPCTargetMachine(const Module &M, IntrinsicLowering *IL,
+                                   const std::string &FS)
+: TargetMachine("PowerPC", IL, false, 4, 4, 4, 4, 4, 4, 2, 1, 1),
+  Subtarget(M, FS), FrameInfo(*this, false), JITInfo(*this) {
+  if (TargetDefault == PPCTarget) {
+    if (Subtarget.isAIX()) PPCTarget = TargetAIX;
+    if (Subtarget.isDarwin()) PPCTarget = TargetDarwin;
+  }
+}
+
 /// addPassesToEmitFile - Add passes to the specified pass manager to implement
 /// a static compiler for this target.
 ///
-bool PowerPCTargetMachine::addPassesToEmitFile(PassManager &PM,
-                                               std::ostream &Out,
-                                                CodeGenFileType FileType) {
+bool PPCTargetMachine::addPassesToEmitFile(PassManager &PM,
+                                           std::ostream &Out,
+                                           CodeGenFileType FileType) {
   if (FileType != TargetMachine::AssemblyFile) return true;
 
   // Run loop strength reduction before anything else.
@@ -121,7 +132,7 @@ bool PowerPCTargetMachine::addPassesToEmitFile(PassManager &PM,
   return false;
 }
 
-void PowerPCJITInfo::addPassesToJITCompile(FunctionPassManager &PM) {
+void PPCJITInfo::addPassesToJITCompile(FunctionPassManager &PM) {
   // The JIT does not support or need PIC.
   PICEnabled = false;
 
@@ -159,26 +170,3 @@ void PowerPCJITInfo::addPassesToJITCompile(FunctionPassManager &PM) {
     PM.add(createMachineFunctionPrinterPass(&std::cerr));
 }
 
-/// PowerPCTargetMachine ctor - Create an ILP32 architecture model
-///
-PPC32TargetMachine::PPC32TargetMachine(const Module &M, IntrinsicLowering *IL,
-                                       const std::string &FS)
-  : PowerPCTargetMachine(PPC32ID, IL, M, FS,
-                         TargetData(PPC32ID,false,4,4,4,4,4,4,2,1,1),
-                         PowerPCFrameInfo(*this, false)), JITInfo(*this) {}
-
-unsigned PPC32TargetMachine::getModuleMatchQuality(const Module &M) {
-  // We strongly match "powerpc-*".
-  std::string TT = M.getTargetTriple();
-  if (TT.size() >= 8 && std::string(TT.begin(), TT.begin()+8) == "powerpc-")
-    return 20;
-
-  if (M.getEndianness()  == Module::BigEndian &&
-      M.getPointerSize() == Module::Pointer32)
-    return 10;                                   // Weak match
-  else if (M.getEndianness() != Module::AnyEndianness ||
-           M.getPointerSize() != Module::AnyPointerSize)
-    return 0;                                    // Match for some other target
-
-  return getJITMatchQuality()/2;
-}
diff --git a/lib/Target/PowerPC/PPCTargetMachine.h b/lib/Target/PowerPC/PPCTargetMachine.h
index f24a320..5ba4f32 100644
--- a/lib/Target/PowerPC/PPCTargetMachine.h
+++ b/lib/Target/PowerPC/PPCTargetMachine.h
@@ -1,4 +1,4 @@
-//===-- PPC32TargetMachine.h - Define TargetMachine for PowerPC -*- C++ -*-=//
+//===-- PPCTargetMachine.h - Define TargetMachine for PowerPC -----*- C++ -*-=//
 //
 //                     The LLVM Compiler Infrastructure
 //
@@ -11,8 +11,8 @@
 //
 //===----------------------------------------------------------------------===//
 
-#ifndef POWERPC32_TARGETMACHINE_H
-#define POWERPC32_TARGETMACHINE_H
+#ifndef PPC_TARGETMACHINE_H
+#define PPC_TARGETMACHINE_H
 
 #include "PPCFrameInfo.h"
 #include "PPCSubtarget.h"
@@ -26,47 +26,34 @@ class IntrinsicLowering;
 class GlobalValue;
 class IntrinsicLowering;
 
-// FIXME: Merge into only subclass.
-class PowerPCTargetMachine : public TargetMachine {
-  PowerPCFrameInfo  FrameInfo;
-  PPCSubtarget      Subtarget;
-protected:
-  PowerPCTargetMachine(const std::string &name, IntrinsicLowering *IL,
-                       const Module &M, const std::string &FS,
-                       const TargetData &TD, 
-                       const PowerPCFrameInfo &TFI);
+class PPCTargetMachine : public TargetMachine {
+  PPCInstrInfo    InstrInfo;
+  PPCSubtarget    Subtarget;
+  PPCFrameInfo    FrameInfo;
+  PPCJITInfo      JITInfo;
 public:
+  PPCTargetMachine(const Module &M, IntrinsicLowering *IL,
+                   const std::string &FS);
+
+  virtual const PPCInstrInfo     *getInstrInfo() const { return &InstrInfo; }
   virtual const TargetFrameInfo  *getFrameInfo() const { return &FrameInfo; }
+  virtual       TargetJITInfo    *getJITInfo()         { return &JITInfo; }
   virtual const TargetSubtarget  *getSubtargetImpl() const{ return &Subtarget; }
-  
-  virtual bool addPassesToEmitFile(PassManager &PM, std::ostream &Out,
-                                   CodeGenFileType FileType);
-};
-  
-class PPC32TargetMachine : public PowerPCTargetMachine {
-  PPC32InstrInfo InstrInfo;
-  PPC32JITInfo JITInfo;
-
-public:
-  PPC32TargetMachine(const Module &M, IntrinsicLowering *IL,
-                     const std::string &FS);
-  virtual const PPC32InstrInfo   *getInstrInfo() const { return &InstrInfo; }
-  virtual const MRegisterInfo *getRegisterInfo() const {
+  virtual const MRegisterInfo    *getRegisterInfo() const {
     return &InstrInfo.getRegisterInfo();
   }
 
-  virtual TargetJITInfo *getJITInfo() {
-    return &JITInfo;
-  }
-
   static unsigned getJITMatchQuality();
 
   static unsigned getModuleMatchQuality(const Module &M);
-
+  
+  virtual bool addPassesToEmitFile(PassManager &PM, std::ostream &Out,
+                                   CodeGenFileType FileType);
+  
   bool addPassesToEmitMachineCode(FunctionPassManager &PM,
                                   MachineCodeEmitter &MCE);
 };
-
+  
 } // end namespace llvm
 
 #endif
diff --git a/lib/Target/PowerPC/README.txt b/lib/Target/PowerPC/README.txt
index c6c5956..4db59ef 100644
--- a/lib/Target/PowerPC/README.txt
+++ b/lib/Target/PowerPC/README.txt
@@ -105,3 +105,16 @@ mode.
 Implement Newton-Rhapson method for improving estimate instructions to the
 correct accuracy, and implementing divide as multiply by reciprocal when it has
 more than one use.  Itanium will want this too.
+
+===-------------------------------------------------------------------------===
+
+int foo(int a, int b) { return a == b ? 16 : 0; }
+_foo:
+        cmpw cr7, r3, r4
+        mfcr r2
+        rlwinm r2, r2, 31, 31, 31
+        slwi r3, r2, 4
+        blr
+
+If we exposed the srl & mask ops after the MFCR that we are doing to select
+the correct CR bit, then we could fold the slwi into the rlwinm before it.