implement support for the MO_DARWIN_STUB TargetOperand flag,
and have isel apply to to call operands as required.  This allows
us to get $stub suffixes on label references on ppc/tiger with the
new instprinter, fixing two tests.  Only 2 to go.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119093 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/PowerPC/PPC.h b/lib/Target/PowerPC/PPC.h
index 24e2710..e3c071c 100644
--- a/lib/Target/PowerPC/PPC.h
+++ b/lib/Target/PowerPC/PPC.h
@@ -39,6 +39,22 @@
 extern Target ThePPC32Target;
 extern Target ThePPC64Target;
 
+  namespace PPCII {
+    
+  /// Target Operand Flag enum.
+  enum TOF {
+    //===------------------------------------------------------------------===//
+    // PPC Specific MachineOperand flags.
+    MO_NO_FLAG,
+    
+    /// MO_DARWIN_STUB - On a symbol operand "FOO", this indicates that the
+    /// reference is actually to the "FOO$stub" symbol.  This is used for calls
+    /// and jumps to external functions on Tiger and earlier.
+    MO_DARWIN_STUB
+    
+  };
+  } // end namespace PPCII
+  
 } // end namespace llvm;
 
 // Defines symbolic names for PowerPC registers.  This defines a mapping from