1  /* { dg-do run } */
       2  /* { dg-options "-O1 -save-temps -fdump-tree-dce" } */
       3  
       4  #include <stdint.h>
       5  
       6  __attribute__((noinline, noipa))
       7  void fun1(uint32_t *x, int n)
       8  {
       9      for (int i = 0; i < (n & -16); i++)
      10        x[i] = (x[i]&(~255)) == 0;
      11  }
      12  
      13  __attribute__((noinline, noipa, optimize("O0")))
      14  void fun2(uint32_t *x, int n)
      15  {
      16      for (int i = 0; i < (n & -16); i++)
      17        x[i] = (x[i]&(~255)) == 0;
      18  }
      19  
      20  #include "bic-bitmask.h"
      21  
      22  /* { dg-final { scan-tree-dump-times {<=\s* 255} 1 dce7 { target vect_int } } } */
      23  /* { dg-final { scan-tree-dump-not {&\s* 4294967040} dce7 { target vect_int } } } */
      24