gcc/testsuite/gcc.dg/tree-ssa/scev-1.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   float i=1;
  12
  13   while (i>=0)
  14     --i;
  15
  16   if (i != -1)
  17     abort();
  18   return 0;
  19 }