diff --git a/libcxx/include/limits b/libcxx/include/limits
--- a/libcxx/include/limits
+++ b/libcxx/include/limits
@@ -339,7 +339,11 @@
     static _LIBCPP_CONSTEXPR const bool is_modulo = false;
 
     static _LIBCPP_CONSTEXPR const bool traps = false;
+#if (defined(__arm__) || defined(__aarch64__))
+    static _LIBCPP_CONSTEXPR const bool tinyness_before = true;
+#else
     static _LIBCPP_CONSTEXPR const bool tinyness_before = false;
+#endif
     static _LIBCPP_CONSTEXPR const float_round_style round_style = round_to_nearest;
 };
 
@@ -385,7 +389,11 @@
     static _LIBCPP_CONSTEXPR const bool is_modulo = false;
 
     static _LIBCPP_CONSTEXPR const bool traps = false;
+#if (defined(__arm__) || defined(__aarch64__))
+    static _LIBCPP_CONSTEXPR const bool tinyness_before = true;
+#else
     static _LIBCPP_CONSTEXPR const bool tinyness_before = false;
+#endif
     static _LIBCPP_CONSTEXPR const float_round_style round_style = round_to_nearest;
 };
 
@@ -435,7 +443,11 @@
     static _LIBCPP_CONSTEXPR const bool is_modulo = false;
 
     static _LIBCPP_CONSTEXPR const bool traps = false;
+#if (defined(__arm__) || defined(__aarch64__))
+    static _LIBCPP_CONSTEXPR const bool tinyness_before = true;
+#else
     static _LIBCPP_CONSTEXPR const bool tinyness_before = false;
+#endif
     static _LIBCPP_CONSTEXPR const float_round_style round_style = round_to_nearest;
 };
 
diff --git a/libcxx/test/std/language.support/support.limits/limits/numeric.limits.members/tinyness_before.pass.cpp b/libcxx/test/std/language.support/support.limits/limits/numeric.limits.members/tinyness_before.pass.cpp
--- a/libcxx/test/std/language.support/support.limits/limits/numeric.limits.members/tinyness_before.pass.cpp
+++ b/libcxx/test/std/language.support/support.limits/limits/numeric.limits.members/tinyness_before.pass.cpp
@@ -50,9 +50,15 @@
     test<__int128_t, false>();
     test<__uint128_t, false>();
 #endif
+#if (defined(__arm__) || defined(__aarch64__))
+    test<float, true>();
+    test<double, true>();
+    test<long double, true>();
+#else
     test<float, false>();
     test<double, false>();
     test<long double, false>();
+#endif
 
   return 0;
 }