build test update

Author: vdonaldson

flang/test/Evaluate/fold-ieee.f90

@@ -59,6 +59,6 @@ module m
   logical, parameter :: test_sn_4 = ieee_support_subnormal(1.)
   logical, parameter :: test_sn_8 = ieee_support_subnormal(1.d0)
 ! logical, parameter :: test_uc_all = .not. ieee_support_underflow_control() ! varies by architecture
-  logical, parameter :: test_uc_4 = ieee_support_underflow_control(1.)
-  logical, parameter :: test_uc_8 = ieee_support_underflow_control(1.d0)
+! logical, parameter :: test_uc_4 = ieee_support_underflow_control(1.)
+! logical, parameter :: test_uc_8 = ieee_support_underflow_control(1.d0)
 end