Subzero. Uses fixups to calculate addend to relocations.

src/IceAssembler.h

Index: src/IceAssembler.h
diff --git a/src/IceAssembler.h b/src/IceAssembler.h
index aff32087ab54e197cc6acc6aefaa3ba4813dd1f6..eda2f4b2fc384b323dc068b884ffcc8720ad3b21 100644
--- a/src/IceAssembler.h
+++ b/src/IceAssembler.h
@@ -293,6 +293,10 @@ public:
     return Buffer.load<T>(Position);
   }
 
+  template <typename T> void store(intptr_t Position, T Value) {
+    Buffer.store(Position, Value);
+  }
+
   /// Emit a fixup at the current location.
   void emitFixup(AssemblerFixup *Fixup) { Buffer.emitFixup(Fixup); }