gcc/testsuite/gcc.target/i386/excess-precision-5.c

   1 /* Excess precision tests.  Verify excess precision doesn't affect
   2    actual types.  */
   3 /* { dg-do compile } */
   4 /* { dg-options "-mfpmath=387 -fexcess-precision=standard" } */
   5
   6 float f;
   7 double d;
   8
   9 void
  10 test_types (void)
  11 {
  12   float *fp;
  13   double *dp;
  14 #define CHECK_FLOAT(E) fp = &(typeof(E)){0}
  15 #define CHECK_DOUBLE(E) dp = &(typeof(E)){0}
  16   CHECK_FLOAT (f + f);
  17   CHECK_DOUBLE (d + d);
  18   CHECK_FLOAT (f * f / f);
  19   CHECK_DOUBLE (d * d / d);
  20   CHECK_FLOAT (f ? f - f : f);
  21   CHECK_DOUBLE (d ? d - d : d);
  22 }