gcc/testsuite/gcc.dg/tree-ssa/scev-2.c

   1 /* PR tree-optimization/19899 */
   2 /* Decrementing a floating-point variable in a loop caused an ICE.  */
   3
   4 /* { dg-do run } */
   5 /* { dg-options "-O -ftree-vectorize" } */
   6
   7 extern void abort (void);
   8
   9 int main()
  10 {
  11   double a = 20;
  12   int i;
  13
  14   for (i = 0; i < 10; ++i)
  15     a -= 2;
  16
  17   if (a)
  18     abort();
  19   return 0;
  20 }