Don't warn about undefined varargs argument behavior in unreachable code.

Fixes <rdar://problem/12322000>.

llvm-svn: 171831

1 files changed, 5 insertions, 5 deletions

diff --git a/clang/lib/Sema/SemaExpr.cpp b/clang/lib/Sema/SemaExpr.cpp
index bac897748f7..3702aa037c1 100644
--- a/clang/lib/Sema/SemaExpr.cpp
+++ b/clang/lib/Sema/SemaExpr.cpp
@@ -9716,11 +9716,11 @@ ExprResult Sema::BuildVAArgExpr(SourceLocation BuiltinLoc,
     if (TInfo->getType()->isSpecificBuiltinType(BuiltinType::Float))
       PromoteType = Context.DoubleTy;
     if (!PromoteType.isNull())
-      Diag(TInfo->getTypeLoc().getBeginLoc(),
-          diag::warn_second_parameter_to_va_arg_never_compatible)
-        << TInfo->getType()
-        << PromoteType
-        << TInfo->getTypeLoc().getSourceRange();
+      DiagRuntimeBehavior(TInfo->getTypeLoc().getBeginLoc(), E,
+                  PDiag(diag::warn_second_parameter_to_va_arg_never_compatible)
+                          << TInfo->getType()
+                          << PromoteType
+                          << TInfo->getTypeLoc().getSourceRange());
   }
 
   QualType T = TInfo->getType().getNonLValueExprType(Context);