rnk added inline comments.
================
Comment at: include/clang/AST/Expr.h:3724-3726
@@ -3722,3 +3723,5 @@
- TypeSourceInfo *getWrittenTypeInfo() const { return TInfo; }
- void setWrittenTypeInfo(TypeSourceInfo *TI) { TInfo = TI; }
+ /// Returns whether this is really a Win64 ABI va_arg expression.
+ bool isMicrosoftABI() const { return TInfo.getInt(); }
+ void setIsMicrosoftABI(bool IsMS) { TInfo.setInt(IsMS); }
+
----------------
This seems unfortunate. Richard, why do we even have a VAArgExpr instead of
just leaving it as a builtin CallExpr like __builtin_va_start? Just history?
http://reviews.llvm.org/D1623
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