[libc++] NFCI: Fix test pinning down RTTI implementation on Apple platforms
The test didn't handle arm64 correctly.
GitOrigin-RevId: 69190f95b1698cec8366ad657000b275c2039c1b
diff --git a/test/libcxx/language.support/support.rtti/type.info/type_info.comparison.apple.compile.pass.cpp b/test/libcxx/language.support/support.rtti/type.info/type_info.comparison.apple.compile.pass.cpp
index 6806641..d8dd1ab 100644
--- a/test/libcxx/language.support/support.rtti/type.info/type_info.comparison.apple.compile.pass.cpp
+++ b/test/libcxx/language.support/support.rtti/type.info/type_info.comparison.apple.compile.pass.cpp
@@ -6,14 +6,9 @@
//
//===----------------------------------------------------------------------===//
-// This test makes sure that we do assume that type_infos are unique across
-// all translation units on Apple platforms. See https://llvm.org/PR45549.
+// This test makes sure that we use the correct implementation for comparing
+// type_info objects on Apple platforms. See https://llvm.org/PR45549.
-// TODO:
-// We don't really want to require 'darwin' here -- instead we'd like to express
-// that this test requires the flavor of libc++ built by Apple, which we don't
-// have a clear way to express right now. If another flavor of libc++ was built
-// targetting Apple platforms without assuming merged RTTI, this test would fail.
// REQUIRES: darwin
#include <typeinfo>
@@ -22,6 +17,14 @@
# error "_LIBCPP_TYPEINFO_COMPARISON_IMPLEMENTATION should be defined on Apple platforms"
#endif
-#if _LIBCPP_TYPEINFO_COMPARISON_IMPLEMENTATION != 1
-# error "_LIBCPP_TYPEINFO_COMPARISON_IMPLEMENTATION should be 1 (assume RTTI is merged) on Apple platforms"
+#if defined(__x86_64__)
+# if _LIBCPP_TYPEINFO_COMPARISON_IMPLEMENTATION != 1
+# error "_LIBCPP_TYPEINFO_COMPARISON_IMPLEMENTATION should be 1 (assume RTTI is merged) on Apple platforms"
+# endif
+#elif defined(__aarch64__)
+# if _LIBCPP_TYPEINFO_COMPARISON_IMPLEMENTATION != 3
+# error "_LIBCPP_TYPEINFO_COMPARISON_IMPLEMENTATION should be 3 (use the special ARM RTTI) on Apple platforms"
+# endif
+#else
+# error "This test should be updated to pin down the RTTI behavior on this ABI."
#endif
