1  /* Check that eliminable compare-instructions are eliminated. */
       2  /* { dg-do compile } */
       3  /* { dg-options "-O2" } */
       4  /* { dg-final { scan-assembler-not "\tcmp|\ttest" } } */
       5  
       6  int f(int a, int *b)
       7  {
       8    /* As seen in powisf2, the result of a shift is checked for zeroness. */
       9    int c = a >> 1;
      10    *b = (c == 0);
      11    return c;
      12  }