rip out a ton of old instruction printing junk now that the

new instprinting logic is there.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119111 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 86 insertions, 419 deletions

diff --git a/lib/Target/PowerPC/PPCAsmPrinter.cpp b/lib/Target/PowerPC/PPCAsmPrinter.cpp
index a3cac21..c0b18a1 100644
--- a/lib/Target/PowerPC/PPCAsmPrinter.cpp
+++ b/lib/Target/PowerPC/PPCAsmPrinter.cpp
@@ -55,13 +55,6 @@
 #include "InstPrinter/PPCInstPrinter.h"
 using namespace llvm;
 
-// This option tells the asmprinter to use the new (experimental) MCInstPrinter
-// path.
-static cl::opt<bool> UseInstPrinter("enable-ppc-inst-printer",
-                                    cl::ReallyHidden
-                                    , cl::init(true)
-                                    );
-
 namespace {
   class PPCAsmPrinter : public AsmPrinter {
   protected:
@@ -77,74 +70,10 @@ namespace {
       return "PowerPC Assembly Printer";
     }
 
-    unsigned enumRegToMachineReg(unsigned enumReg) {
-      switch (enumReg) {
-      default: llvm_unreachable("Unhandled register!");
-      case PPC::CR0:  return  0;
-      case PPC::CR1:  return  1;
-      case PPC::CR2:  return  2;
-      case PPC::CR3:  return  3;
-      case PPC::CR4:  return  4;
-      case PPC::CR5:  return  5;
-      case PPC::CR6:  return  6;
-      case PPC::CR7:  return  7;
-      }
-      llvm_unreachable(0);
-    }
-
-    /// printInstruction - This method is automatically generated by tablegen
-    /// from the instruction set description.  This method returns true if the
-    /// machine instruction was sufficiently described to print it, otherwise it
-    /// returns false.
-    void printInstruction(const MachineInstr *MI, raw_ostream &O);
-    static const char *getRegisterName(unsigned RegNo);
-
 
     virtual void EmitInstruction(const MachineInstr *MI);
-    void printOp(const MachineOperand &MO, raw_ostream &O);
-
-    /// stripRegisterPrefix - This method strips the character prefix from a
-    /// register name so that only the number is left.  Used by for linux asm.
-    const char *stripRegisterPrefix(const char *RegName) {
-      switch (RegName[0]) {
-      case 'r':
-      case 'f':
-      case 'v': return RegName + 1;
-      case 'c': if (RegName[1] == 'r') return RegName + 2;
-      }
-
-      return RegName;
-    }
-
-    /// printRegister - Print register according to target requirements.
-    ///
-    void printRegister(const MachineOperand &MO, bool R0AsZero, raw_ostream &O){
-      unsigned RegNo = MO.getReg();
-      assert(TargetRegisterInfo::isPhysicalRegister(RegNo) && "Not physreg??");
 
-      // If we should use 0 for R0.
-      if (R0AsZero && RegNo == PPC::R0) {
-        O << "0";
-        return;
-      }
-
-      const char *RegName = getRegisterName(RegNo);
-      // Linux assembler (Others?) does not take register mnemonics.
-      // FIXME - What about special registers used in mfspr/mtspr?
-      if (!Subtarget.isDarwin()) RegName = stripRegisterPrefix(RegName);
-      O << RegName;
-    }
-
-    void printOperand(const MachineInstr *MI, unsigned OpNo, raw_ostream &O) {
-      const MachineOperand &MO = MI->getOperand(OpNo);
-      if (MO.isReg()) {
-        printRegister(MO, false, O);
-      } else if (MO.isImm()) {
-        O << MO.getImm();
-      } else {
-        printOp(MO, O);
-      }
-    }
+    void printOperand(const MachineInstr *MI, unsigned OpNo, raw_ostream &O);
 
     bool PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
                          unsigned AsmVariant, const char *ExtraCode,
@@ -153,192 +82,9 @@ namespace {
                                unsigned AsmVariant, const char *ExtraCode,
                                raw_ostream &O);
 
-
-    void printS5ImmOperand(const MachineInstr *MI, unsigned OpNo,
-                           raw_ostream &O) {
-      char value = MI->getOperand(OpNo).getImm();
-      value = (value << (32-5)) >> (32-5);
-      O << (int)value;
-    }
-    void printU5ImmOperand(const MachineInstr *MI, unsigned OpNo,
-                           raw_ostream &O) {
-      unsigned char value = MI->getOperand(OpNo).getImm();
-      assert(value <= 31 && "Invalid u5imm argument!");
-      O << (unsigned int)value;
-    }
-    void printU6ImmOperand(const MachineInstr *MI, unsigned OpNo,
-                           raw_ostream &O) {
-      unsigned char value = MI->getOperand(OpNo).getImm();
-      assert(value <= 63 && "Invalid u6imm argument!");
-      O << (unsigned int)value;
-    }
-    void printS16ImmOperand(const MachineInstr *MI, unsigned OpNo, 
-                            raw_ostream &O) {
-      O << (short)MI->getOperand(OpNo).getImm();
-    }
-    void printU16ImmOperand(const MachineInstr *MI, unsigned OpNo,
-                            raw_ostream &O) {
-      O << (unsigned short)MI->getOperand(OpNo).getImm();
-    }
-    void printS16X4ImmOperand(const MachineInstr *MI, unsigned OpNo,
-                              raw_ostream &O) {
-      if (MI->getOperand(OpNo).isImm()) {
-        O << (short)(MI->getOperand(OpNo).getImm()*4);
-      } else {
-        O << "lo16(";
-        printOp(MI->getOperand(OpNo), O);
-        if (TM.getRelocationModel() == Reloc::PIC_)
-          O << "-\"L" << getFunctionNumber() << "$pb\")";
-        else
-          O << ')';
-      }
-    }
-    void printBranchOperand(const MachineInstr *MI, unsigned OpNo,
-                            raw_ostream &O) {
-      // Branches can take an immediate operand.  This is used by the branch
-      // selection pass to print $+8, an eight byte displacement from the PC.
-      if (MI->getOperand(OpNo).isImm()) {
-        O << "$+" << MI->getOperand(OpNo).getImm()*4;
-      } else {
-        printOp(MI->getOperand(OpNo), O);
-      }
-    }
-    void printCallOperand(const MachineInstr *MI, unsigned OpNo,
-                          raw_ostream &O) {
-      const MachineOperand &MO = MI->getOperand(OpNo);
-      if (TM.getRelocationModel() != Reloc::Static) {
-        if (MO.isGlobal()) {
-          const GlobalValue *GV = MO.getGlobal();
-          if (GV->isDeclaration() || GV->isWeakForLinker()) {
-            // Dynamically-resolved functions need a stub for the function.
-            MCSymbol *Sym = GetSymbolWithGlobalValueBase(GV, "$stub");
-            MachineModuleInfoImpl::StubValueTy &StubSym =
-              MMI->getObjFileInfo<MachineModuleInfoMachO>().getFnStubEntry(Sym);
-            if (StubSym.getPointer() == 0)
-              StubSym = MachineModuleInfoImpl::
-                StubValueTy(Mang->getSymbol(GV), !GV->hasInternalLinkage());
-            O << *Sym;
-            return;
-          }
-        }
-        if (MO.isSymbol()) {
-          SmallString<128> TempNameStr;
-          TempNameStr += StringRef(MO.getSymbolName());
-          TempNameStr += StringRef("$stub");
-          
-          MCSymbol *Sym = GetExternalSymbolSymbol(TempNameStr.str());
-          MachineModuleInfoImpl::StubValueTy &StubSym =
-            MMI->getObjFileInfo<MachineModuleInfoMachO>().getFnStubEntry(Sym);
-          if (StubSym.getPointer() == 0)
-            StubSym = MachineModuleInfoImpl::
-              StubValueTy(GetExternalSymbolSymbol(MO.getSymbolName()), true);
-          O << *Sym;
-          return;
-        }
-      }
-
-      printOp(MI->getOperand(OpNo), O);
-    }
-    void printAbsAddrOperand(const MachineInstr *MI, unsigned OpNo,
-                             raw_ostream &O) {
-     O << (int)MI->getOperand(OpNo).getImm()*4;
-    }
-    void printPICLabel(const MachineInstr *MI, unsigned OpNo, raw_ostream &O) {
-      O << "\"L" << getFunctionNumber() << "$pb\"\n";
-      O << "\"L" << getFunctionNumber() << "$pb\":";
-    }
-    void printSymbolHi(const MachineInstr *MI, unsigned OpNo, raw_ostream &O) {
-      if (MI->getOperand(OpNo).isImm()) {
-        printS16ImmOperand(MI, OpNo, O);
-      } else {
-        if (Subtarget.isDarwin()) O << "ha16(";
-        printOp(MI->getOperand(OpNo), O);
-        if (TM.getRelocationModel() == Reloc::PIC_)
-          O << "-L" << getFunctionNumber() << "$pb";
-        if (Subtarget.isDarwin())
-          O << ')';
-        else
-          O << "@ha";
-      }
-    }
-    void printSymbolLo(const MachineInstr *MI, unsigned OpNo, raw_ostream &O) {
-      if (MI->getOperand(OpNo).isImm()) {
-        printS16ImmOperand(MI, OpNo, O);
-      } else {
-        if (Subtarget.isDarwin()) O << "lo16(";
-        printOp(MI->getOperand(OpNo), O);
-        if (TM.getRelocationModel() == Reloc::PIC_)
-          O << "-L" << getFunctionNumber() << "$pb";
-        if (Subtarget.isDarwin())
-          O << ')';
-        else
-          O << "@l";
-      }
-    }
-    void printcrbitm(const MachineInstr *MI, unsigned OpNo, raw_ostream &O) {
-      unsigned CCReg = MI->getOperand(OpNo).getReg();
-      unsigned RegNo = enumRegToMachineReg(CCReg);
-      O << (0x80 >> RegNo);
-    }
-    // The new addressing mode printers.
-    void printMemRegImm(const MachineInstr *MI, unsigned OpNo, raw_ostream &O) {
-      printSymbolLo(MI, OpNo, O);
-      O << '(';
-      if (MI->getOperand(OpNo+1).isReg() &&
-          MI->getOperand(OpNo+1).getReg() == PPC::R0)
-        O << "0";
-      else
-        printOperand(MI, OpNo+1, O);
-      O << ')';
-    }
-    void printMemRegImmShifted(const MachineInstr *MI, unsigned OpNo,
-                               raw_ostream &O) {
-      if (MI->getOperand(OpNo).isImm())
-        printS16X4ImmOperand(MI, OpNo, O);
-      else
-        printSymbolLo(MI, OpNo, O);
-      O << '(';
-      if (MI->getOperand(OpNo+1).isReg() &&
-          MI->getOperand(OpNo+1).getReg() == PPC::R0)
-        O << "0";
-      else
-        printOperand(MI, OpNo+1, O);
-      O << ')';
-    }
-
-    void printMemRegReg(const MachineInstr *MI, unsigned OpNo, raw_ostream &O) {
-      // When used as the base register, r0 reads constant zero rather than
-      // the value contained in the register.  For this reason, the darwin
-      // assembler requires that we print r0 as 0 (no r) when used as the base.
-      const MachineOperand &MO = MI->getOperand(OpNo);
-      printRegister(MO, true, O);
-      O << ", ";
-      printOperand(MI, OpNo+1, O);
-    }
-
-    void printTOCEntryLabel(const MachineInstr *MI, unsigned OpNo,
-                            raw_ostream &O) {
-      const MachineOperand &MO = MI->getOperand(OpNo);
-      assert(MO.isGlobal());
-      MCSymbol *Sym = Mang->getSymbol(MO.getGlobal());
-
-      // Map symbol -> label of TOC entry.
-      MCSymbol *&TOCEntry = TOC[Sym];
-      if (TOCEntry == 0)
-        TOCEntry = OutContext.
-          GetOrCreateSymbol(StringRef(MAI->getPrivateGlobalPrefix()) +
-                            "C" + Twine(LabelID++));
-
-      O << *TOCEntry << "@toc";
-    }
-
-    void printPredicateOperand(const MachineInstr *MI, unsigned OpNo,
-                               raw_ostream &O, const char *Modifier);
-
     MachineLocation getDebugValueLocation(const MachineInstr *MI) const {
-
       MachineLocation Location;
-      assert (MI->getNumOperands() == 4 && "Invalid no. of machine operands!");
+      assert(MI->getNumOperands() == 4 && "Invalid no. of machine operands!");
       // Frame address.  Currently handles register +- offset only.
       if (MI->getOperand(0).isReg() && MI->getOperand(2).isImm())
         Location.set(MI->getOperand(0).getReg(), MI->getOperand(2).getImm());
@@ -382,13 +128,35 @@ namespace {
   };
 } // end of anonymous namespace
 
-// Include the auto-generated portion of the assembly writer
-#include "PPCGenAsmWriter.inc"
+/// stripRegisterPrefix - This method strips the character prefix from a
+/// register name so that only the number is left.  Used by for linux asm.
+static const char *stripRegisterPrefix(const char *RegName) {
+  switch (RegName[0]) {
+    case 'r':
+    case 'f':
+    case 'v': return RegName + 1;
+    case 'c': if (RegName[1] == 'r') return RegName + 2;
+  }
+  
+  return RegName;
+}
 
-void PPCAsmPrinter::printOp(const MachineOperand &MO, raw_ostream &O) {
+void PPCAsmPrinter::printOperand(const MachineInstr *MI, unsigned OpNo,
+                                 raw_ostream &O) {
+  const MachineOperand &MO = MI->getOperand(OpNo);
+  
   switch (MO.getType()) {
+  case MachineOperand::MO_Register: {
+    const char *RegName = PPCInstPrinter::getRegisterName(MO.getReg());
+    // Linux assembler (Others?) does not take register mnemonics.
+    // FIXME - What about special registers used in mfspr/mtspr?
+    if (!Subtarget.isDarwin()) RegName = stripRegisterPrefix(RegName);
+    O << RegName;
+    return;
+  }
   case MachineOperand::MO_Immediate:
-    llvm_unreachable("printOp() does not handle immediate values");
+    O << MO.getImm();
+    return;
 
   case MachineOperand::MO_MachineBasicBlock:
     O << *MO.getMBB()->getSymbol();
@@ -481,9 +249,7 @@ bool PPCAsmPrinter::PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
     switch (ExtraCode[0]) {
     default: return true;  // Unknown modifier.
     case 'c': // Don't print "$" before a global var name or constant.
-      // PPC never has a prefix.
-      printOperand(MI, OpNo, O);
-      return false;
+      break; // PPC never has a prefix.
     case 'L': // Write second word of DImode reference.
       // Verify that this operand has two consecutive registers.
       if (!MI->getOperand(OpNo).isReg() ||
@@ -515,183 +281,84 @@ bool PPCAsmPrinter::PrintAsmMemoryOperand(const MachineInstr *MI, unsigned OpNo,
                                           raw_ostream &O) {
   if (ExtraCode && ExtraCode[0])
     return true; // Unknown modifier.
-  assert (MI->getOperand(OpNo).isReg());
+  assert(MI->getOperand(OpNo).isReg());
   O << "0(";
   printOperand(MI, OpNo, O);
   O << ")";
   return false;
 }
 
-void PPCAsmPrinter::printPredicateOperand(const MachineInstr *MI, unsigned OpNo,
-                                          raw_ostream &O, const char *Modifier){
-  assert(Modifier && "Must specify 'cc' or 'reg' as predicate op modifier!");
-  unsigned Code = MI->getOperand(OpNo).getImm();
-  if (!strcmp(Modifier, "cc")) {
-    switch ((PPC::Predicate)Code) {
-    case PPC::PRED_ALWAYS: return; // Don't print anything for always.
-    case PPC::PRED_LT: O << "lt"; return;
-    case PPC::PRED_LE: O << "le"; return;
-    case PPC::PRED_EQ: O << "eq"; return;
-    case PPC::PRED_GE: O << "ge"; return;
-    case PPC::PRED_GT: O << "gt"; return;
-    case PPC::PRED_NE: O << "ne"; return;
-    case PPC::PRED_UN: O << "un"; return;
-    case PPC::PRED_NU: O << "nu"; return;
-    }
-
-  } else {
-    assert(!strcmp(Modifier, "reg") &&
-           "Need to specify 'cc' or 'reg' as predicate op modifier!");
-    // Don't print the register for 'always'.
-    if (Code == PPC::PRED_ALWAYS) return;
-    printOperand(MI, OpNo+1, O);
-  }
-}
 
 /// EmitInstruction -- Print out a single PowerPC MI in Darwin syntax to
 /// the current output stream.
 ///
 void PPCAsmPrinter::EmitInstruction(const MachineInstr *MI) {
-  if (UseInstPrinter) {
-    MCInst TmpInst;
+  MCInst TmpInst;
+  
+  // Lower multi-instruction pseudo operations.
+  switch (MI->getOpcode()) {
+  default: break;
+  case PPC::MovePCtoLR:
+  case PPC::MovePCtoLR8: {
+    // Transform %LR = MovePCtoLR
+    // Into this, where the label is the PIC base: 
+    //     bl L1$pb
+    // L1$pb:
+    MCSymbol *PICBase = MF->getPICBaseSymbol();
     
-    // Lower multi-instruction pseudo operations.
-    switch (MI->getOpcode()) {
-    default: break;
-    case PPC::MovePCtoLR:
-    case PPC::MovePCtoLR8: {
-      // Transform %LR = MovePCtoLR
-      // Into this, where the label is the PIC base: 
-      //     bl L1$pb
-      // L1$pb:
-      MCSymbol *PICBase = MF->getPICBaseSymbol();
-      
-      // Emit the 'bl'.
-      TmpInst.setOpcode(PPC::BL_Darwin); // Darwin vs SVR4 doesn't matter here.
-      
+    // Emit the 'bl'.
+    TmpInst.setOpcode(PPC::BL_Darwin); // Darwin vs SVR4 doesn't matter here.
+    
+    
+    // FIXME: We would like an efficient form for this, so we don't have to do
+    // a lot of extra uniquing.
+    TmpInst.addOperand(MCOperand::CreateExpr(MCSymbolRefExpr::
+                                             Create(PICBase, OutContext)));
+    OutStreamer.EmitInstruction(TmpInst);
+    
+    // Emit the label.
+    OutStreamer.EmitLabel(PICBase);
+    return;
+  }
+  case PPC::LDtoc: {
+    // Transform %X3 = LDtoc <ga:@min1>, %X2
+    LowerPPCMachineInstrToMCInst(MI, TmpInst, *this);
       
-      // FIXME: We would like an efficient form for this, so we don't have to do
-      // a lot of extra uniquing.
-      TmpInst.addOperand(MCOperand::CreateExpr(MCSymbolRefExpr::
-                                               Create(PICBase, OutContext)));
-      OutStreamer.EmitInstruction(TmpInst);
+    // Change the opcode to LD, and the global address operand to be a
+    // reference to the TOC entry we will synthesize later.
+    TmpInst.setOpcode(PPC::LD);
+    const MachineOperand &MO = MI->getOperand(1);
+    assert(MO.isGlobal());
       
-      // Emit the label.
-      OutStreamer.EmitLabel(PICBase);
-      return;
+    // Map symbol -> label of TOC entry.
+    MCSymbol *&TOCEntry = TOC[Mang->getSymbol(MO.getGlobal())];
+    if (TOCEntry == 0) {
+      TOCEntry = OutContext.
+        GetOrCreateSymbol(StringRef(MAI->getPrivateGlobalPrefix()) +
+                          "C" + Twine(LabelID++));
     }
-    case PPC::LDtoc: {
-      // Transform %X3 = LDtoc <ga:@min1>, %X2
-      LowerPPCMachineInstrToMCInst(MI, TmpInst, *this);
-        
-      // Change the opcode to LD, and the global address operand to be a
-      // reference to the TOC entry we will synthesize later.
-      TmpInst.setOpcode(PPC::LD);
-      const MachineOperand &MO = MI->getOperand(1);
-      assert(MO.isGlobal());
-        
-      // Map symbol -> label of TOC entry.
-      MCSymbol *&TOCEntry = TOC[Mang->getSymbol(MO.getGlobal())];
-      if (TOCEntry == 0) {
-        TOCEntry = OutContext.
-          GetOrCreateSymbol(StringRef(MAI->getPrivateGlobalPrefix()) +
-                            "C" + Twine(LabelID++));
-      }
-        
-      const MCExpr *Exp =
-        MCSymbolRefExpr::Create(TOCEntry, MCSymbolRefExpr::VK_PPC_TOC,
-                                OutContext);
-      TmpInst.getOperand(1) = MCOperand::CreateExpr(Exp);
-      OutStreamer.EmitInstruction(TmpInst);
-      return;
-    }
-        
-    case PPC::MFCRpseud:
-      // Transform: %R3 = MFCRpseud %CR7
-      // Into:      %R3 = MFCR      ;; cr7
-      OutStreamer.AddComment(getRegisterName(MI->getOperand(1).getReg()));
-      TmpInst.setOpcode(PPC::MFCR);
-      TmpInst.addOperand(MCOperand::CreateReg(MI->getOperand(0).getReg()));
-      OutStreamer.EmitInstruction(TmpInst);
-      return;
-    }
-
-    LowerPPCMachineInstrToMCInst(MI, TmpInst, *this);
+      
+    const MCExpr *Exp =
+      MCSymbolRefExpr::Create(TOCEntry, MCSymbolRefExpr::VK_PPC_TOC,
+                              OutContext);
+    TmpInst.getOperand(1) = MCOperand::CreateExpr(Exp);
     OutStreamer.EmitInstruction(TmpInst);
     return;
   }
-  
-  
-  SmallString<128> Str;
-  raw_svector_ostream O(Str);
-
-  if (MI->getOpcode() == TargetOpcode::DBG_VALUE) {
-    unsigned NOps = MI->getNumOperands();
-    assert(NOps==4);
-    O << '\t' << MAI->getCommentString() << "DEBUG_VALUE: ";
-    // cast away const; DIetc do not take const operands for some reason.
-    DIVariable V(const_cast<MDNode *>(MI->getOperand(NOps-1).getMetadata()));
-    O << V.getName();
-    O << " <- ";
-    // Frame address.  Currently handles register +- offset only.
-    assert(MI->getOperand(0).isReg() && MI->getOperand(1).isImm());
-    O << '['; printOperand(MI, 0, O); O << '+'; printOperand(MI, 1, O);
-    O << ']';
-    O << "+";
-    printOperand(MI, NOps-2, O);
-    OutStreamer.EmitRawText(O.str());
-    return;
-  }
-  // Check for slwi/srwi mnemonics.
-  if (MI->getOpcode() == PPC::RLWINM) {
-    unsigned char SH = MI->getOperand(2).getImm();
-    unsigned char MB = MI->getOperand(3).getImm();
-    unsigned char ME = MI->getOperand(4).getImm();
-    bool useSubstituteMnemonic = false;
-    if (SH <= 31 && MB == 0 && ME == (31-SH)) {
-      O << "\tslwi "; useSubstituteMnemonic = true;
-    }
-    if (SH <= 31 && MB == (32-SH) && ME == 31) {
-      O << "\tsrwi "; useSubstituteMnemonic = true;
-      SH = 32-SH;
-    }
-    if (useSubstituteMnemonic) {
-      printOperand(MI, 0, O);
-      O << ", ";
-      printOperand(MI, 1, O);
-      O << ", " << (unsigned int)SH;
-      OutStreamer.EmitRawText(O.str());
-      return;
-    }
-  }
-  
-  if ((MI->getOpcode() == PPC::OR || MI->getOpcode() == PPC::OR8) &&
-      MI->getOperand(1).getReg() == MI->getOperand(2).getReg()) {
-    O << "\tmr ";
-    printOperand(MI, 0, O);
-    O << ", ";
-    printOperand(MI, 1, O);
-    OutStreamer.EmitRawText(O.str());
+      
+  case PPC::MFCRpseud:
+    // Transform: %R3 = MFCRpseud %CR7
+    // Into:      %R3 = MFCR      ;; cr7
+    OutStreamer.AddComment(PPCInstPrinter::
+                           getRegisterName(MI->getOperand(1).getReg()));
+    TmpInst.setOpcode(PPC::MFCR);
+    TmpInst.addOperand(MCOperand::CreateReg(MI->getOperand(0).getReg()));
+    OutStreamer.EmitInstruction(TmpInst);
     return;
   }
-  
-  if (MI->getOpcode() == PPC::RLDICR) {
-    unsigned char SH = MI->getOperand(2).getImm();
-    unsigned char ME = MI->getOperand(3).getImm();
-    // rldicr RA, RS, SH, 63-SH == sldi RA, RS, SH
-    if (63-SH == ME) {
-      O << "\tsldi ";
-      printOperand(MI, 0, O);
-      O << ", ";
-      printOperand(MI, 1, O);
-      O << ", " << (unsigned int)SH;
-      OutStreamer.EmitRawText(O.str());
-      return;
-    }
-  }
 
-  printInstruction(MI, O);
-  OutStreamer.EmitRawText(O.str());
+  LowerPPCMachineInstrToMCInst(MI, TmpInst, *this);
+  OutStreamer.EmitInstruction(TmpInst);
 }
 
 void PPCLinuxAsmPrinter::EmitFunctionEntryLabel() {