Specify constant context in constant emitter

The constant emitter may need to evaluate the expression in a constant context.
For exasmple, global initializer lists.

llvm-svn: 348070

1 files changed, 1 insertions, 0 deletions

diff --git a/clang/lib/AST/ExprConstant.cpp b/clang/lib/AST/ExprConstant.cpp
index 91b3fbfa466..5eb2f2e7b84 100644
--- a/clang/lib/AST/ExprConstant.cpp
+++ b/clang/lib/AST/ExprConstant.cpp
@@ -8199,6 +8199,7 @@ bool IntExprEvaluator::VisitBuiltinCallExpr(const CallExpr *E,
       // We can delay calculation of __builtin_constant_p until after
       // inlining. Note: This diagnostic won't be shown to the user.
       Info.FFDiag(E, diag::note_invalid_subexpr_in_const_expr);
+      return false;
     }
     return Success(false, E);
   }