Source: @pullmoll
Upstream: no
Reason: Target architectures with soft float do not define these constants.

--- a/tests/fp/fp-bench.c	2020-12-08 17:59:44.000000000 +0100
+++ b/tests/fp/fp-bench.c	2020-12-12 20:38:40.702235420 +0100
@@ -485,16 +485,32 @@
 
     switch (rounding) {
     case ROUND_EVEN:
+#if defined(FE_TONEAREST)
         rhost = FE_TONEAREST;
+#else
+	return;
+#endif
         break;
     case ROUND_ZERO:
+#if defined(FE_TOWARDZERO)
         rhost = FE_TOWARDZERO;
+#else
+	return;
+#endif
         break;
     case ROUND_DOWN:
+#if defined(FE_DOWNWARD)
         rhost = FE_DOWNWARD;
+#else
+	return;
+#endif
         break;
     case ROUND_UP:
+#if defined(FE_UPWARD)
         rhost = FE_UPWARD;
+#else
+	return;
+#endif
         break;
     case ROUND_TIEAWAY:
         die_host_rounding(rounding);