MC: Add target hook to control symbol quoting

llvm-svn: 239370
diff --git a/llvm/lib/Target/PowerPC/PPCAsmPrinter.cpp b/llvm/lib/Target/PowerPC/PPCAsmPrinter.cpp
index b1f85c1..b42b0f9 100644
--- a/llvm/lib/Target/PowerPC/PPCAsmPrinter.cpp
+++ b/llvm/lib/Target/PowerPC/PPCAsmPrinter.cpp
@@ -181,14 +181,14 @@
     return;
 
   case MachineOperand::MO_MachineBasicBlock:
-    O << *MO.getMBB()->getSymbol();
+    MO.getMBB()->getSymbol()->print(O, MAI);
     return;
   case MachineOperand::MO_ConstantPoolIndex:
     O << DL->getPrivateGlobalPrefix() << "CPI" << getFunctionNumber()
       << '_' << MO.getIndex();
     return;
   case MachineOperand::MO_BlockAddress:
-    O << *GetBlockAddressSymbol(MO.getBlockAddress());
+    GetBlockAddressSymbol(MO.getBlockAddress())->print(O, MAI);
     return;
   case MachineOperand::MO_GlobalAddress: {
     // Computing the address of a global symbol, not calling it.
@@ -222,8 +222,8 @@
     } else {
       SymToPrint = getSymbol(GV);
     }
-    
-    O << *SymToPrint;
+
+    SymToPrint->print(O, MAI);
 
     printOffset(MO.getOffset(), O);
     return;