fix comment

[oota-llvm.git] / lib / Target / MSP430 / MSP430RegisterInfo.cpp

diff --git a/lib/Target/MSP430/MSP430RegisterInfo.cpp b/lib/Target/MSP430/MSP430RegisterInfo.cpp
index 646375cac8928a30fda75c58456438147640c583..9049c4bf8f6531c929027ebd3b9b3fc2e17b8620 100644 (file)
--- a/lib/Target/MSP430/MSP430RegisterInfo.cpp
+++ b/lib/Target/MSP430/MSP430RegisterInfo.cpp
@@ -26,19 +26,21 @@
 #include "llvm/ADT/BitVector.h"
 #include "llvm/Support/ErrorHandling.h"
 
+#define GET_REGINFO_TARGET_DESC
+#include "MSP430GenRegisterInfo.inc"
+
 using namespace llvm;
 
 // FIXME: Provide proper call frame setup / destroy opcodes.
 MSP430RegisterInfo::MSP430RegisterInfo(MSP430TargetMachine &tm,
                                        const TargetInstrInfo &tii)
-  : MSP430GenRegisterInfo(MSP430::ADJCALLSTACKDOWN, MSP430::ADJCALLSTACKUP),
-    TM(tm), TII(tii) {
-  StackAlign = TM.getFrameInfo()->getStackAlignment();
+  : MSP430GenRegisterInfo(MSP430::PCW), TM(tm), TII(tii) {
+  StackAlign = TM.getFrameLowering()->getStackAlignment();
 }
 
 const unsigned*
 MSP430RegisterInfo::getCalleeSavedRegs(const MachineFunction *MF) const {
-  const TargetFrameInfo *TFI = MF->getTarget().getFrameInfo();
+  const TargetFrameLowering *TFI = MF->getTarget().getFrameLowering();
   const Function* F = MF->getFunction();
   static const unsigned CalleeSavedRegs[] = {
     MSP430::FPW, MSP430::R5W, MSP430::R6W, MSP430::R7W,
@@ -74,9 +76,13 @@ MSP430RegisterInfo::getCalleeSavedRegs(const MachineFunction *MF) const {
 
 BitVector MSP430RegisterInfo::getReservedRegs(const MachineFunction &MF) const {
   BitVector Reserved(getNumRegs());
-  const TargetFrameInfo *TFI = MF.getTarget().getFrameInfo();
+  const TargetFrameLowering *TFI = MF.getTarget().getFrameLowering();
 
-  // Mark 4 special registers as reserved.
+  // Mark 4 special registers with subregisters as reserved.
+  Reserved.set(MSP430::PCB);
+  Reserved.set(MSP430::SPB);
+  Reserved.set(MSP430::SRB);
+  Reserved.set(MSP430::CGB);
   Reserved.set(MSP430::PCW);
   Reserved.set(MSP430::SPW);
   Reserved.set(MSP430::SRW);
@@ -97,7 +103,7 @@ MSP430RegisterInfo::getPointerRegClass(unsigned Kind) const {
 void MSP430RegisterInfo::
 eliminateCallFramePseudoInstr(MachineFunction &MF, MachineBasicBlock &MBB,
                               MachineBasicBlock::iterator I) const {
-  const TargetFrameInfo *TFI = MF.getTarget().getFrameInfo();
+  const TargetFrameLowering *TFI = MF.getTarget().getFrameLowering();
 
   if (!TFI->hasReservedCallFrame(MF)) {
     // If the stack pointer can be changed after prologue, turn the
@@ -113,12 +119,12 @@ eliminateCallFramePseudoInstr(MachineFunction &MF, MachineBasicBlock &MBB,
       Amount = (Amount+StackAlign-1)/StackAlign*StackAlign;
 
       MachineInstr *New = 0;
-      if (Old->getOpcode() == getCallFrameSetupOpcode()) {
+      if (Old->getOpcode() == TII.getCallFrameSetupOpcode()) {
         New = BuildMI(MF, Old->getDebugLoc(),
                       TII.get(MSP430::SUB16ri), MSP430::SPW)
           .addReg(MSP430::SPW).addImm(Amount);
       } else {
-        assert(Old->getOpcode() == getCallFrameDestroyOpcode());
+        assert(Old->getOpcode() == TII.getCallFrameDestroyOpcode());
         // factor out the amount the callee already popped.
         uint64_t CalleeAmt = Old->getOperand(1).getImm();
         Amount -= CalleeAmt;
@@ -136,7 +142,7 @@ eliminateCallFramePseudoInstr(MachineFunction &MF, MachineBasicBlock &MBB,
         MBB.insert(I, New);
       }
     }
-  } else if (I->getOpcode() == getCallFrameDestroyOpcode()) {
+  } else if (I->getOpcode() == TII.getCallFrameDestroyOpcode()) {
     // If we are performing frame pointer elimination and if the callee pops
     // something off the stack pointer, add it back.
     if (uint64_t CalleeAmt = I->getOperand(1).getImm()) {
@@ -163,7 +169,7 @@ MSP430RegisterInfo::eliminateFrameIndex(MachineBasicBlock::iterator II,
   MachineInstr &MI = *II;
   MachineBasicBlock &MBB = *MI.getParent();
   MachineFunction &MF = *MBB.getParent();
-  const TargetFrameInfo *TFI = MF.getTarget().getFrameInfo();
+  const TargetFrameLowering *TFI = MF.getTarget().getFrameLowering();
   DebugLoc dl = MI.getDebugLoc();
   while (!MI.getOperand(i).isFI()) {
     ++i;
@@ -216,7 +222,7 @@ MSP430RegisterInfo::eliminateFrameIndex(MachineBasicBlock::iterator II,
 void
 MSP430RegisterInfo::processFunctionBeforeFrameFinalized(MachineFunction &MF)
                                                                          const {
-  const TargetFrameInfo *TFI = MF.getTarget().getFrameInfo();
+  const TargetFrameLowering *TFI = MF.getTarget().getFrameLowering();
 
   // Create a frame entry for the FPW register that must be saved.
   if (TFI->hasFP(MF)) {
@@ -227,19 +233,8 @@ MSP430RegisterInfo::processFunctionBeforeFrameFinalized(MachineFunction &MF)
   }
 }
 
-unsigned MSP430RegisterInfo::getRARegister() const {
-  return MSP430::PCW;
-}
-
 unsigned MSP430RegisterInfo::getFrameRegister(const MachineFunction &MF) const {
-  const TargetFrameInfo *TFI = MF.getTarget().getFrameInfo();
+  const TargetFrameLowering *TFI = MF.getTarget().getFrameLowering();
 
   return TFI->hasFP(MF) ? MSP430::FPW : MSP430::SPW;
 }
-
-int MSP430RegisterInfo::getDwarfRegNum(unsigned RegNum, bool isEH) const {
-  llvm_unreachable("Not implemented yet!");
-  return 0;
-}
-
-#include "MSP430GenRegisterInfo.inc"