only test real 10 folding on x86_64

Author: Mark Danial

flang/test/Evaluate/fold-nearest.f90

@@ -14,7 +14,9 @@ module m1
   logical, parameter :: test_6 = nearest(-inf, -1.) == -inf
   logical, parameter :: test_7 = nearest(1.9999999, 1.) == 2.
   logical, parameter :: test_8 = nearest(2., -1.) == 1.9999999
+#if __x86_64__
   logical, parameter :: test_9 = nearest(1.9999999999999999999_10, 1.) == 2._10
+#endif
   logical, parameter :: test_10 = nearest(-1., 1.) == -.99999994
   logical, parameter :: test_11 = nearest(-1., -2.) == -1.0000001
   real, parameter :: negZero = sign(0., -1.)
@@ -42,7 +44,9 @@ module m2
   logical, parameter :: test_8 = ieee_next_after(-inf, -1.) == -inf
   logical, parameter :: test_9 = ieee_next_after(1.9999999, 3.) == 2.
   logical, parameter :: test_10 = ieee_next_after(2., 1.) == 1.9999999
+#if __x86_64__
   logical, parameter :: test_11 = ieee_next_after(1.9999999999999999999_10, 3.) == 2._10
+#endif
   logical, parameter :: test_12 = ieee_next_after(1., 1.) == 1.
   !WARN: warning: invalid argument on division
   real, parameter :: nan = 0. / 0.