gcc/testsuite/gcc.dg/tree-ssa/pr23115.c

   1 /* { dg-do run } */
   2 /* { dg-options "-O2 -ftree-vectorize" } */
   3
   4 extern void abort (void);
   5
   6 #define MIN2(a,b) (((a)<(b)) ? (a) : (b))
   7 #define MAX2(a,b) (((a)>(b)) ? (a) : (b))
   8
   9 double p[2] = { 4., 5. };
  10
  11 int main()
  12 {
  13   long j;
  14   double R, n, x;
  15 #if __SIZEOF_DOUBLE__ >= 8
  16   n = 1.e300;
  17   x = -1.e300;
  18 #else
  19   n = 1.e30;
  20   x = -1.e30;
  21 #endif
  22   for( j=0; j < 2; j++ )
  23     {
  24       x = MAX2(x,p[j]);
  25       n = MIN2(n,p[j]);
  26     }
  27   R = x-n;
  28
  29   if( R < 0.1 )
  30       abort ();
  31
  32   return 0;
  33 }