diff --git a/test/test_power.cpp b/test/test_power.cpp
index cdf8c146a..5a4aee437 100644
--- a/test/test_power.cpp
+++ b/test/test_power.cpp
@@ -49,6 +49,10 @@ struct power_test
 
     void test_power_functions()
     {
+#if defined(__clang__) && !defined(__FAST_MATH__)
+        // This test deliberately unmasks floating-point exceptions below.
+#pragma clang fp exceptions(strict)
+#endif
         // pow
         {
             std::transform(lhs_input.cbegin(), lhs_input.cend(), rhs_input.cbegin(), expected.begin(),
diff --git a/test/test_utils.hpp b/test/test_utils.hpp
index f0d64a7df..b875c3e30 100644
--- a/test/test_utils.hpp
+++ b/test/test_utils.hpp
@@ -152,6 +152,11 @@ namespace detail
     template <class T>
     T safe_division(const T& lhs, const T& rhs)
     {
+#if defined(__clang__) && !defined(__FAST_MATH__)
+        // Comparisons also run with FE_INVALID unmasked in the power tests.
+        // Do not speculate a division past the zero-denominator guard.
+#pragma clang fp exceptions(strict)
+#endif
         if (rhs == T(0))
         {
             return (std::numeric_limits<T>::max)();