gcc/testsuite/c-c++-common/Wduplicated-branches-2.c

   1 /* PR c/64279 */
   2 /* { dg-do compile } */
   3 /* { dg-options "-Wduplicated-branches -O2" } */
   4
   5 void
   6 f (int *p)
   7 {
   8   if (*p > 0)
   9     {
  10       if (x == 0) /* { dg-error "undeclared|not declared" } */
  11         *p = 5;
  12       else
  13         *p = 6;
  14     }
  15 }
  16
  17 void
  18 f2 (int *p)
  19 {
  20   if (*p > 0)
  21     {
  22       if (*p > 2)
  23         *p = x; /* { dg-error "undeclared|not declared" } */
  24       else
  25         *p = 6;
  26     }
  27 }
  28
  29 void
  30 f3 (int *p)
  31 {
  32   if (*p > 0)
  33     {
  34       if (*p > 2)
  35         *p = 8;
  36       else
  37         *p = x; /* { dg-error "undeclared|not declared" } */
  38     }
  39 }
  40
  41 void
  42 f4 (int *p)
  43 {
  44   if (*p > 0)
  45     {
  46       if (x == 0) /* { dg-error "undeclared|not declared" } */
  47         *p = 5;
  48       else
  49         *p = 6;
  50     }
  51   else
  52     {
  53       if (x == 0) /* { dg-error "not declared" "" { target c++ } } */
  54         *p = 7;
  55       else
  56         *p = 6;
  57     }
  58 }
  59
  60 void
  61 f5 (int *p)
  62 {
  63   if (*p > 0)
  64     {
  65       if (*p > 2)
  66         *p = x; /* { dg-error "undeclared|not declared" } */
  67       else
  68         *p = 6;
  69     }
  70   else
  71     {
  72       if (x == 0) /* { dg-error "not declared" "" { target c++ } } */
  73         *p = 5;
  74       else
  75         *p = 6;
  76     }
  77 }
  78
  79 void
  80 f6 (int *p)
  81 {
  82   if (*p > 0)
  83     {
  84       if (*p > 2)
  85         *p = 8;
  86       else
  87         *p = x; /* { dg-error "undeclared|not declared" } */
  88     }
  89   else
  90     {
  91       if (x == 0) /* { dg-error "not declared" "" { target c++ } } */
  92         *p = 5;
  93       else
  94         *p = 6;
  95     }
  96 }
  97
  98 void
  99 f7 (int i)
 100 {
 101   if (i > 5)
 102     ({ x++; }); /* { dg-error "undeclared|not declared" } */
 103   else
 104     ({ i++; });
 105 }
 106
 107 void
 108 f8 (int i)
 109 {
 110   if (i > 5)
 111     ({ i++; });
 112   else
 113     ({ x++; }); /* { dg-error "undeclared|not declared" } */
 114 }