Turn off __has_feature(cxx_rtti) when -fno-rtti-data is present
-fno-rtti-data makes it so that vtables emitted in the current TU lack
RTTI data. This means that dynamic_cast usually fails at runtime. Users
of the existing cxx_rtti feature expect all of RTTI to work, not just
some of it.
Chromium bug for context: http://crbug.com/518191
llvm-svn: 244922
diff --git a/clang/test/Lexer/has_feature_rtti.cpp b/clang/test/Lexer/has_feature_rtti.cpp
index 4bfeead..26eaa2e 100644
--- a/clang/test/Lexer/has_feature_rtti.cpp
+++ b/clang/test/Lexer/has_feature_rtti.cpp
@@ -1,5 +1,6 @@
// RUN: %clang_cc1 -E %s -o - | FileCheck --check-prefix=CHECK-RTTI %s
// RUN: %clang_cc1 -E -fno-rtti %s -o - | FileCheck --check-prefix=CHECK-NO-RTTI %s
+// RUN: %clang_cc1 -E -fno-rtti-data %s -o - | FileCheck --check-prefix=CHECK-NO-RTTI %s
#if __has_feature(cxx_rtti)
int foo();