gcc/testsuite/gcc.target/powerpc/pr92090-2.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-mdejagnu-cpu=power8 -Os -w" } */
   3 /* { dg-additional-options "-mbig" { target powerpc64le-*-* } } */
   4
   5 /* Verify that we don't ICE.  */
   6
   7 int a;
   8 static _Atomic long double b, c, d, m;
   9 double n;
  10 extern int foo (void);
  11 extern void bar (int, int, int, int);
  12
  13 void
  14 bug (void)
  15 {
  16   b = 1.79769313486231580793728971405301199e308L;
  17   for (int i = 0; i < 10000; i++)
  18     if (__builtin_isinf (n))
  19       b;
  20   c = 1;
  21   int e, f, g, h;
  22   while (a)
  23     ;
  24   for (int i; i; i++)
  25     {
  26       double j = c /= foo ();
  27       if (__builtin_isinf (j))
  28         {
  29           if (foo == 1 << 31)
  30             e++;
  31           f++;
  32           c = 0;
  33         }
  34       else
  35         {
  36           if (foo == 1 << 30)
  37             g++;
  38           h++;
  39           c = 1;
  40         }
  41     }
  42   bar (e, f, g, h);
  43   d = 1.79769313486231580793728971405301199e308L;
  44   m = 1;
  45 }