gcc/testsuite/gcc.dg/Wparentheses-11.c

   1 /* PR 7543. Test operation of -Wparentheses.  Precedence warnings.
   2    !a | b and !a & b. */
   3 /* { dg-do compile } */
   4 /* { dg-options "-Wparentheses" } */
   5
   6 int foo (int);
   7
   8 int
   9 bar (int a, int b, int c)
  10 {
  11   foo (!a & b); /* { dg-warning "parentheses" "correct warning" } */
  12   foo (!a & (b < c));
  13   foo (!a & (b > c));
  14   foo (!a & (b == c));
  15   foo (!a & (b != c));
  16   foo (!a & (b <= c));
  17   foo (!a & (b >= c));
  18   foo (!a & (b && c));
  19   foo (!a & (b || c));
  20   foo (!a & !b);
  21   foo (!(a & b));
  22   foo ((!a) & b);
  23   foo (!a & 2); /* { dg-warning "parentheses" "correct warning" } */
  24   foo (!a & (2 < c));
  25   foo (!a & (2 > c));
  26   foo (!a & (2 == c));
  27   foo (!a & (2 != c));
  28   foo (!a & (2 <= c));
  29   foo (!a & (2 >= c));
  30   foo (!a & (2 && c));
  31   foo (!a & (2 || c));
  32   foo (!a & !2);
  33   foo (!(a & 2));
  34   foo ((!a) & 2);
  35   foo (!1 & 2); /* { dg-warning "parentheses" "correct warning" } */
  36   foo (!1 & (2 < c));
  37   foo (!1 & (2 > c));
  38   foo (!1 & (2 == c));
  39   foo (!1 & (2 != c));
  40   foo (!1 & (2 <= c));
  41   foo (!1 & (2 >= c));
  42   foo (!1 & (2 && c));
  43   foo (!1 & (2 || c));
  44   foo (!1 & !2);
  45   foo (!(1 & 2));
  46
  47   foo (!a | b); /* { dg-warning "parentheses" "correct warning" } */
  48   foo (!a | (b < c));
  49   foo (!a | (b > c));
  50   foo (!a | (b == c));
  51   foo (!a | (b != c));
  52   foo (!a | (b <= c));
  53   foo (!a | (b >= c));
  54   foo (!a | (b && c));
  55   foo (!a | (b || c));
  56   foo (!a | !b);
  57   foo (!(a | b));
  58   foo ((!a) | b);
  59   foo (!a | 2); /* { dg-warning "parentheses" "correct warning" } */
  60   foo (!a | (2 < c));
  61   foo (!a | (2 > c));
  62   foo (!a | (2 == c));
  63   foo (!a | (2 != c));
  64   foo (!a | (2 <= c));
  65   foo (!a | (2 >= c));
  66   foo (!a | (2 && c));
  67   foo (!a | (2 || c));
  68   foo (!a | !2);
  69   foo (!(a | 2));
  70   foo ((!a) | 2);
  71   foo (!1 | 2); /* { dg-warning "parentheses" "correct warning" } */
  72   foo (!1 | (2 < c));
  73   foo (!1 | (2 > c));
  74   foo (!1 | (2 == c));
  75   foo (!1 | (2 != c));
  76   foo (!1 | (2 <= c));
  77   foo (!1 | (2 >= c));
  78   foo (!1 | (2 && c));
  79   foo (!1 | (2 || c));
  80   foo (!1 | !2);
  81   foo (!(1 | 2));
  82   foo ((!1) | 2);
  83
  84   foo (b & !a); /* { dg-bogus "parentheses" "bogus warning" } */
  85   foo ((b < c) & !a);
  86   foo ((b > c) & !a);
  87   foo ((b == c) & !a);
  88   foo ((b != c) & !a);
  89   foo ((b <= c) & !a);
  90   foo ((b >= c) & !a);
  91   foo ((b && c) & !a);
  92   foo ((b || c) & !a);
  93   foo (!b & !a);
  94   foo (!(b & a));
  95   foo (b & (!a));
  96   foo (2 & !a); /* { dg-bogus "parentheses" "correct warning" } */
  97   foo ((2 < c) & !a);
  98   foo ((2 > c) & !a);
  99   foo ((2 == c) & !a);
 100   foo ((2 != c) & !a);
 101   foo ((2 <= c) & !a);
 102   foo ((2 >= c) & !a);
 103   foo ((2 && c) & !a);
 104   foo ((2 || c) & !a);
 105   foo (!2 & !a);
 106   foo (!(2 & a));
 107   foo (2 & (!a));
 108   foo (2 & !1); /* { dg-bogus "parentheses" "correct warning" } */
 109   foo ((2 < c) & !1);
 110   foo ((2 > c) & !1);
 111   foo ((2 == c) & !1);
 112   foo ((2 != c) & !1);
 113   foo ((2 <= c) & !1);
 114   foo ((2 >= c) & !1);
 115   foo ((2 && c) & !1);
 116   foo ((2 || c) & !1);
 117   foo (!2 & !1);
 118   foo (!(2 & 1));
 119
 120   foo (b | !a); /* { dg-bogus "parentheses" "correct warning" } */
 121   foo ((b < c) | !a);
 122   foo ((b > c) | !a);
 123   foo ((b == c) | !a);
 124   foo ((b != c) | !a);
 125   foo ((b <= c) | !a);
 126   foo ((b >= c) | !a);
 127   foo ((b && c) | !a);
 128   foo ((b || c) | !a);
 129   foo (!b | !a);
 130   foo (!(b | a));
 131   foo (b | (!a));
 132   foo (2 | !a); /* { dg-bogus "parentheses" "correct warning" } */
 133   foo ((2 < c) | !a);
 134   foo ((2 > c) | !a);
 135   foo ((2 == c) | !a);
 136   foo ((2 != c) | !a);
 137   foo ((2 <= c) | !a);
 138   foo ((2 >= c) | !a);
 139   foo ((2 && c) | !a);
 140   foo ((2 || c) | !a);
 141   foo (!2 | !a);
 142   foo (!(2 | a));
 143   foo (2 | (!a));
 144   foo (2 | !1); /* { dg-bogus "parentheses" "correct warning" } */
 145   foo ((2 < c) | !1);
 146   foo ((2 > c) | !1);
 147   foo ((2 == c) | !1);
 148   foo ((2 != c) | !1);
 149   foo ((2 <= c) | !1);
 150   foo ((2 >= c) | !1);
 151   foo ((2 && c) | !1);
 152   foo ((2 || c) | !1);
 153   foo (!2 | !1);
 154   foo (!(2 | 1));
 155   foo (2 | (!1));
 156 }
 157
 158 int
 159 baz (int a, int b, int c)
 160 {
 161   foo (!a & (b << c));/* { dg-warning "parentheses" "correct warning" } */
 162   foo (!a & (b >> c));/* { dg-warning "parentheses" "correct warning" } */
 163   foo (!a & (b + c)); /* { dg-warning "parentheses" "correct warning" } */
 164   foo (!a & (b - c)); /* { dg-warning "parentheses" "correct warning" } */
 165   foo (!a & (b = c)); /* { dg-warning "parentheses" "correct warning" } */
 166   foo (!a & ~b);      /* { dg-warning "parentheses" "correct warning" } */
 167   foo (!a & (b & c)); /* { dg-warning "parentheses" "correct warning" } */
 168   foo (!a & (b | c)); /* { dg-warning "parentheses" "correct warning" } */
 169   foo (!a & 2);       /* { dg-warning "parentheses" "correct warning" } */
 170   foo (!a & (2 << c));/* { dg-warning "parentheses" "correct warning" } */
 171   foo (!a & (2 >> c));/* { dg-warning "parentheses" "correct warning" } */
 172   foo (!a & (2 + c)); /* { dg-warning "parentheses" "correct warning" } */
 173   foo (!a & (2 - c)); /* { dg-warning "parentheses" "correct warning" } */
 174   foo (!a & (c = 2)); /* { dg-warning "parentheses" "correct warning" } */
 175   foo (!a & ~2);      /* { dg-warning "parentheses" "correct warning" } */
 176   foo (!a & (2 & c)); /* { dg-warning "parentheses" "correct warning" } */
 177   foo (!a & (2 | c)); /* { dg-warning "parentheses" "correct warning" } */
 178   foo (!1 & (2 << c));/* { dg-warning "parentheses" "correct warning" } */
 179   foo (!1 & (2 >> c));/* { dg-warning "parentheses" "correct warning" } */
 180   foo (!1 & (2 + c)); /* { dg-warning "parentheses" "correct warning" } */
 181   foo (!1 & (2 - c)); /* { dg-warning "parentheses" "correct warning" } */
 182   foo (!1 & (c = 2)); /* { dg-warning "parentheses" "correct warning" } */
 183   foo (!1 & ~2);      /* { dg-warning "parentheses" "correct warning" } */
 184   foo (!1 & (2 & c)); /* { dg-warning "parentheses" "correct warning" } */
 185   foo (!1 & (2 | c)); /* { dg-warning "parentheses" "correct warning" } */
 186   foo (!a | (b << c));/* { dg-warning "parentheses" "correct warning" } */
 187   foo (!a | (b >> c));/* { dg-warning "parentheses" "correct warning" } */
 188   foo (!a | (b + c)); /* { dg-warning "parentheses" "correct warning" } */
 189   foo (!a | (b - c)); /* { dg-warning "parentheses" "correct warning" } */
 190   foo (!a | (b = c)); /* { dg-warning "parentheses" "correct warning" } */
 191   foo (!a | ~b);      /* { dg-warning "parentheses" "correct warning" } */
 192   foo (!a | (b & c)); /* { dg-warning "parentheses" "correct warning" } */
 193   foo (!a | (b | c)); /* { dg-warning "parentheses" "correct warning" } */
 194   foo (!a | (2 << c));/* { dg-warning "parentheses" "correct warning" } */
 195   foo (!a | (2 >> c));/* { dg-warning "parentheses" "correct warning" } */
 196   foo (!a | (2 + c)); /* { dg-warning "parentheses" "correct warning" } */
 197   foo (!a | (2 - c)); /* { dg-warning "parentheses" "correct warning" } */
 198   foo (!a | (c = 2)); /* { dg-warning "parentheses" "correct warning" } */
 199   foo (!a | ~2);      /* { dg-warning "parentheses" "correct warning" } */
 200   foo (!a | (2 & c)); /* { dg-warning "parentheses" "correct warning" } */
 201   foo (!a | (2 | c)); /* { dg-warning "parentheses" "correct warning" } */
 202   foo (!1 | (2 << c));/* { dg-warning "parentheses" "correct warning" } */
 203   foo (!1 | (2 >> c));/* { dg-warning "parentheses" "correct warning" } */
 204   foo (!1 | (2 + c)); /* { dg-warning "parentheses" "correct warning" } */
 205   foo (!1 | (2 - c)); /* { dg-warning "parentheses" "correct warning" } */
 206   foo (!1 | (c = 2)); /* { dg-warning "parentheses" "correct warning" } */
 207   foo (!1 | ~2);      /* { dg-warning "parentheses" "correct warning" } */
 208   foo (!1 | (2 & c)); /* { dg-warning "parentheses" "correct warning" } */
 209   foo (!1 | (2 | c)); /* { dg-warning "parentheses" "correct warning" } */
 210   foo ((b << c) & !a);
 211   foo ((b >> c) & !a);
 212   foo ((b + c) & !a);
 213   foo ((b - c) & !a);
 214   foo ((b = c) & !a);
 215   foo (~b & !a);
 216   foo ((b & c) & !a);
 217   foo ((b | c) & !a);
 218   foo ((2 << c) & !a);
 219   foo ((2 >> c) & !a);
 220   foo ((2 + c) & !a);
 221   foo ((2 - c) & !a);
 222   foo ((c = 2) & !a);
 223   foo (~2 & !a);
 224   foo ((2 & c) & !a);
 225   foo ((2 | c) & !a);
 226   foo ((2 << c) & !1);
 227   foo ((2 >> c) & !1);
 228   foo ((2 + c) & !1);
 229   foo ((2 - c) & !1);
 230   foo ((c = 2) & !1);
 231   foo (~2 & !1);
 232   foo ((2 & c) & !1);
 233   foo ((2 | c) & !1);
 234   foo ((b << c) | !a);
 235   foo ((b >> c) | !a);
 236   foo ((b + c) | !a);
 237   foo ((b - c) | !a);
 238   foo ((b = c) | !a);
 239   foo (~b | !a);
 240   foo ((b & c) | !a);
 241   foo ((b | c) | !a);
 242   foo ((2 << c) | !a);
 243   foo ((2 >> c) | !a);
 244   foo ((2 + c) | !a);
 245   foo ((2 - c) | !a);
 246   foo ((c = 2) | !a);
 247   foo (~2 | !a);
 248   foo ((2 & c) | !a);
 249   foo ((2 | c) | !a);
 250   foo ((2 << c) | !1);
 251   foo ((2 >> c) | !1);
 252   foo ((2 + c) | !1);
 253   foo ((2 - c) | !1);
 254   foo ((c = 2) | !1);
 255   foo (~2 | !1);
 256   foo ((2 & c) | !1);
 257   foo ((2 | c) | !1);
 258 }