1  /* Test operation of -Wparentheses.  Precedence warnings.  + or -
       2     inside shift.  */
       3  /* Origin: Joseph Myers <jsm@polyomino.org.uk> */
       4  
       5  /* { dg-do compile } */
       6  /* { dg-options "-Wparentheses" } */
       7  
       8  int foo (int);
       9  
      10  int
      11  bar (int a, int b, int c)
      12  {
      13    foo (a + b << c); /* { dg-warning "parentheses" "correct warning" } */
      14    foo ((a + b) << c);
      15    foo (a + (b << c));
      16    foo (1 + 2 << c); /* { dg-warning "parentheses" "correct warning" } */
      17    foo ((1 + 2) << c);
      18    foo (1 + (2 << c));
      19    foo (1 + 2 << 3); /* { dg-warning "parentheses" "correct warning" } */
      20    foo ((1 + 2) << 3);
      21    foo (1 + (2 << 3));
      22    foo (a << b + c); /* { dg-warning "parentheses" "correct warning" } */
      23    foo ((a << b) + c);
      24    foo (a << (b + c));
      25    foo (1 << 2 + c); /* { dg-warning "parentheses" "correct warning" } */
      26    foo ((1 << 2) + c);
      27    foo (1 << (2 + c));
      28    foo (1 << 2 + 3); /* { dg-warning "parentheses" "correct warning" } */
      29    foo ((1 << 2) + 3);
      30    foo (1 << (2 + 3));
      31    foo (a + b >> c); /* { dg-warning "parentheses" "correct warning" } */
      32    foo ((a + b) >> c);
      33    foo (a + (b >> c));
      34    foo (1 + 2 >> c); /* { dg-warning "parentheses" "correct warning" } */
      35    foo ((1 + 2) >> c);
      36    foo (1 + (2 >> c));
      37    foo (1 + 2 >> 3); /* { dg-warning "parentheses" "correct warning" } */
      38    foo ((1 + 2) >> 3);
      39    foo (1 + (2 >> 3));
      40    foo (a >> b + c); /* { dg-warning "parentheses" "correct warning" } */
      41    foo ((a >> b) + c);
      42    foo (a >> (b + c));
      43    foo (1 >> 2 + c); /* { dg-warning "parentheses" "correct warning" } */
      44    foo ((1 >> 2) + c);
      45    foo (1 >> (2 + c));
      46    foo (1 >> 2 + 3); /* { dg-warning "parentheses" "correct warning" } */
      47    foo ((1 >> 2) + 3);
      48    foo (1 >> (2 + 3));
      49    foo (a - b << c); /* { dg-warning "parentheses" "correct warning" } */
      50    foo ((a - b) << c);
      51    foo (a - (b << c));
      52    foo (6 - 5 << c); /* { dg-warning "parentheses" "correct warning" } */
      53    foo ((6 - 5) << c);
      54    foo (6 - (5 << c));
      55    foo (6 - 5 << 4); /* { dg-warning "parentheses" "correct warning" } */
      56    foo ((6 - 5) << 4);
      57    foo (6 - (5 << 4));
      58    foo (a << b - c); /* { dg-warning "parentheses" "correct warning" } */
      59    foo ((a << b) - c);
      60    foo (a << (b - c));
      61    foo (6 << 5 - c); /* { dg-warning "parentheses" "correct warning" } */
      62    foo ((6 << 5) - c);
      63    foo (6 << (5 - c));
      64    foo (6 << 5 - 4); /* { dg-warning "parentheses" "correct warning" } */
      65    foo ((6 << 5) - 4);
      66    foo (6 << (5 - 4));
      67    foo (a - b >> c); /* { dg-warning "parentheses" "correct warning" } */
      68    foo ((a - b) >> c);
      69    foo (a - (b >> c));
      70    foo (6 - 5 >> c); /* { dg-warning "parentheses" "correct warning" } */
      71    foo ((6 - 5) >> c);
      72    foo (6 - (5 >> c));
      73    foo (6 - 5 >> 4); /* { dg-warning "parentheses" "correct warning" } */
      74    foo ((6 - 5) >> 4);
      75    foo (6 - (5 >> 4));
      76    foo (a >> b - c); /* { dg-warning "parentheses" "correct warning" } */
      77    foo ((a >> b) - c);
      78    foo (a >> (b - c));
      79    foo (6 >> 5 - c); /* { dg-warning "parentheses" "correct warning" } */
      80    foo ((6 >> 5) - c);
      81    foo (6 >> (5 - c));
      82    foo (6 >> 5 - 4); /* { dg-warning "parentheses" "correct warning" } */
      83    foo ((6 >> 5) - 4);
      84    foo (6 >> (5 - 4));
      85  }