gcc/testsuite/gcc.dg/pr68671.c

   1 /* PR tree-optimization/68671 */
   2 /* { dg-do run } */
   3 /* { dg-options " -O2 -fno-tree-dce" } */
   4 /* { dg-xfail-if "ptxas crashes" { nvptx-*-* } } */
   5
   6 volatile int a = -1;
   7 volatile int b;
   8
   9 static inline int
  10 fn1 (signed char p1, int p2)
  11 {
  12   return (p1 < 0) || (p1 > (1 >> p2)) ? 0 : (p1 << 1);
  13 }
  14
  15 int
  16 main ()
  17 {
  18   signed char c = a;
  19   b = fn1 (c, 1);
  20   c = ((128 | c) < 0 ? 1 : 0);
  21   if (c != 1)
  22     __builtin_abort ();
  23   return 0;
  24 }