gcc/testsuite/gcc.dg/pr68671.c

   1 /* PR tree-optimization/68671 */
   2 /* { dg-do run } */
   3 /* { dg-options " -O2 -fno-tree-dce" } */
   4
   5 volatile int a = -1;
   6 volatile int b;
   7
   8 static inline int
   9 fn1 (signed char p1, int p2)
  10 {
  11   return (p1 < 0) || (p1 > (1 >> p2)) ? 0 : (p1 << 1);
  12 }
  13
  14 int
  15 main ()
  16 {
  17   signed char c = a;
  18   b = fn1 (c, 1);
  19   c = ((128 | c) < 0 ? 1 : 0);
  20   if (c != 1)
  21     __builtin_abort ();
  22   return 0;
  23 }