gcc/testsuite/gcc.dg/c11-true_min-1.c

   1 /* { dg-do run } */
   2 /* { dg-options "-std=c11" } */
   3 /* { dg-xfail-run-if "PR58757 -mieee is required to compare denormals" { alpha*-*-* } { "*" } { "" } } */
   4
   5 /* Test that the smallest positive value is not 0. This needs to be true
   6    even when denormals are not supported, so we do not pass any flag
   7    like -mieee.  */
   8
   9 #include <float.h>
  10
  11 int main(){
  12   volatile float f = FLT_TRUE_MIN;
  13   volatile double d = DBL_TRUE_MIN;
  14   volatile long double l = LDBL_TRUE_MIN;
  15   if (f == 0 || d == 0 || l == 0)
  16     __builtin_abort ();
  17   return 0;
  18 }