From 825dfc8cbaa573dfa7bd5a4893fd88810a3808bb Mon Sep 17 00:00:00 2001
From: Rafael Espindola <rafael.espindola@gmail.com>
Date: Wed, 27 Nov 2013 18:38:14 +0000
Subject: [PATCH] Remove dead code.

MO_ExternalSymbol and MO_JumpTableIndex don't show up in inline asm.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195861 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Target/X86/X86AsmPrinter.cpp | 40 ++++----------------------------
 1 file changed, 4 insertions(+), 36 deletions(-)

diff --git a/lib/Target/X86/X86AsmPrinter.cpp b/lib/Target/X86/X86AsmPrinter.cpp
index 041eb9af301..92a071b6c5b 100644
--- a/lib/Target/X86/X86AsmPrinter.cpp
+++ b/lib/Target/X86/X86AsmPrinter.cpp
@@ -78,9 +78,6 @@ static void printSymbolOperand(X86AsmPrinter &P, const MachineOperand &MO,
                                raw_ostream &O) {
   switch (MO.getType()) {
   default: llvm_unreachable("unknown symbol type!");
-  case MachineOperand::MO_JumpTableIndex:
-    O << *P.GetJTISymbol(MO.getIndex());
-    break;
   case MachineOperand::MO_ConstantPoolIndex:
     O << *P.GetCPISymbol(MO.getIndex());
     P.printOffset(MO.getOffset(), O);
@@ -137,35 +134,6 @@ static void printSymbolOperand(X86AsmPrinter &P, const MachineOperand &MO,
     P.printOffset(MO.getOffset(), O);
     break;
   }
-  case MachineOperand::MO_ExternalSymbol: {
-    const MCSymbol *SymToPrint;
-    if (MO.getTargetFlags() == X86II::MO_DARWIN_STUB) {
-      SmallString<128> TempNameStr;
-      TempNameStr += StringRef(MO.getSymbolName());
-      TempNameStr += StringRef("$stub");
-
-      MCSymbol *Sym = P.GetExternalSymbolSymbol(TempNameStr.str());
-      MachineModuleInfoImpl::StubValueTy &StubSym =
-          P.MMI->getObjFileInfo<MachineModuleInfoMachO>().getFnStubEntry(Sym);
-      if (StubSym.getPointer() == 0) {
-        TempNameStr.erase(TempNameStr.end()-5, TempNameStr.end());
-        StubSym = MachineModuleInfoImpl::
-          StubValueTy(P.OutContext.GetOrCreateSymbol(TempNameStr.str()),
-                      true);
-      }
-      SymToPrint = StubSym.getPointer();
-    } else {
-      SymToPrint = P.GetExternalSymbolSymbol(MO.getSymbolName());
-    }
-
-    // If the name begins with a dollar-sign, enclose it in parens.  We do this
-    // to avoid having it look like an integer immediate to the assembler.
-    if (SymToPrint->getName()[0] != '$')
-      O << *SymToPrint;
-    else
-      O << '(' << *SymToPrint << '(';
-    break;
-  }
   }
 
   switch (MO.getTargetFlags()) {
@@ -292,8 +260,6 @@ static void printLeaMemReference(X86AsmPrinter &P, const MachineInstr *MI,
   }
   case MachineOperand::MO_GlobalAddress:
   case MachineOperand::MO_ConstantPoolIndex:
-  case MachineOperand::MO_JumpTableIndex:
-  case MachineOperand::MO_ExternalSymbol:
     printSymbolOperand(P, MI->getOperand(Op + 3), O);
   }
 
@@ -432,10 +398,11 @@ bool X86AsmPrinter::PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
       case MachineOperand::MO_Immediate:
         O << MO.getImm();
         return false;
-      case MachineOperand::MO_GlobalAddress:
       case MachineOperand::MO_ConstantPoolIndex:
       case MachineOperand::MO_JumpTableIndex:
       case MachineOperand::MO_ExternalSymbol:
+        llvm_unreachable("unexpected operand type!");
+      case MachineOperand::MO_GlobalAddress:
         printSymbolOperand(*this, MO, O);
         if (Subtarget->isPICStyleRIPRel())
           O << "(%rip)";
@@ -455,10 +422,11 @@ bool X86AsmPrinter::PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
       case MachineOperand::MO_Immediate:
         O << MO.getImm();
         break;
-      case MachineOperand::MO_GlobalAddress:
       case MachineOperand::MO_ConstantPoolIndex:
       case MachineOperand::MO_JumpTableIndex:
       case MachineOperand::MO_ExternalSymbol:
+        llvm_unreachable("unexpected operand type!");
+      case MachineOperand::MO_GlobalAddress:
         printSymbolOperand(*this, MO, O);
         break;
       }