1 files changed, 5 insertions, 0 deletions
diff --git a/clang/lib/AST/Interp/State.h b/clang/lib/AST/Interp/State.h
index d9a645a3eb3e..131fbcf3cffc 100644
--- a/clang/lib/AST/Interp/State.h
+++ b/clang/lib/AST/Interp/State.h
@@ -71,6 +71,7 @@ public:
   virtual unsigned getCallStackDepth() = 0;
 
 public:
+  State() : InConstantContext(false) {}
   // Diagnose that the evaluation could not be folded (FF => FoldFailure)
   OptionalDiagnostic
   FFDiag(SourceLocation Loc,
@@ -118,6 +119,10 @@ public:
 
   const LangOptions &getLangOpts() const;
 
+  /// Whether or not we're in a context where the front end requires a
+  /// constant value.
+  bool InConstantContext;
+
 private:
   void addCallStack(unsigned Limit);