Given target assembler parsers a chance to handle variant expressions

first. Use this to turn the PPC modifiers into PPC specific expressions,
allowing them to work on constants.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189400 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 7 insertions, 0 deletions

diff --git a/include/llvm/MC/MCTargetAsmParser.h b/include/llvm/MC/MCTargetAsmParser.h
index ebcbd5b30c..6e96e8becd 100644
--- a/include/llvm/MC/MCTargetAsmParser.h
+++ b/include/llvm/MC/MCTargetAsmParser.h
@@ -11,6 +11,7 @@
 #define LLVM_MC_TARGETPARSER_H
 
 #include "llvm/MC/MCParser/MCAsmParserExtension.h"
+#include "llvm/MC/MCExpr.h"
 
 namespace llvm {
 class MCStreamer;
@@ -174,6 +175,12 @@ public:
 
   virtual void convertToMapAndConstraints(unsigned Kind,
                       const SmallVectorImpl<MCParsedAsmOperand*> &Operands) = 0;
+
+  virtual const MCExpr *applyModifierToExpr(const MCExpr *E,
+                                            MCSymbolRefExpr::VariantKind,
+                                            MCContext &Ctx) {
+    return 0;
+  }
 };
 
 } // End llvm namespace