Add a __has_feature check for arc_cf_code_audited.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@142423 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Lex/PPMacroExpansion.cpp b/lib/Lex/PPMacroExpansion.cpp
index e10c95c..5092915 100644
--- a/lib/Lex/PPMacroExpansion.cpp
+++ b/lib/Lex/PPMacroExpansion.cpp
@@ -610,6 +610,7 @@
.Case("ownership_holds", true)
.Case("ownership_returns", true)
.Case("ownership_takes", true)
+ .Case("arc_cf_code_audited", true)
// C1X features
.Case("c_alignas", LangOpts.C1X)
.Case("c_generic_selections", LangOpts.C1X)
diff --git a/test/SemaObjC/arc-cf.m b/test/SemaObjC/arc-cf.m
index b9a44d9..e7dcc22 100644
--- a/test/SemaObjC/arc-cf.m
+++ b/test/SemaObjC/arc-cf.m
@@ -1,5 +1,9 @@
// RUN: %clang_cc1 -fsyntax-only -fobjc-arc -verify %s
+#if __has_feature(arc_cf_code_audited)
+char _global[-1]; // expected-error {{declared as an array with a negative size}}
+#endif
+
typedef const void *CFTypeRef;
typedef const struct __CFString *CFStringRef;