gcc/testsuite/gcc.dg/Wstringop-overflow-53.c

   1 /* PR middle-end/96384 - bogus -Wstringop-overflow= storing into
   2    multidimensional array with index in range
   3    { dg-do compile }
   4    { dg-options "-O2 -Wall" } */
   5
   6 #define SHRT_MAX   __SHRT_MAX__
   7 #define SHRT_MIN   (-SHRT_MAX - 1)
   8 #define INT_MAX    __INT_MAX__
   9 #define INT_MIN    (-INT_MAX - 1)
  10 #define LONG_MAX   __LONG_MAX__
  11 #define LONG_MIN   (-LONG_MAX - 1)
  12
  13 #define USHRT_MAX  (SHRT_MAX * 2 + 1)
  14 #define UINT_MAX   ~0U
  15 #define ULONG_MAX  ~0LU
  16
  17 char ca3_5_7[3][5][7];
  18
  19 void nowarn_ca_3_5_ssi (short i)
  20 {
  21   if (i > SHRT_MAX - 1)
  22     i = SHRT_MAX - 1;
  23
  24   ca3_5_7[i][0][0] = __LINE__;
  25   ca3_5_7[i][0][1] = __LINE__;
  26   ca3_5_7[i][0][2] = __LINE__;
  27   ca3_5_7[i][0][3] = __LINE__;
  28   ca3_5_7[i][0][4] = __LINE__;
  29   ca3_5_7[i][0][5] = __LINE__;
  30   ca3_5_7[i][0][6] = __LINE__;
  31
  32   ca3_5_7[i][1][0] = __LINE__;
  33   ca3_5_7[i][1][1] = __LINE__;
  34   ca3_5_7[i][1][2] = __LINE__;
  35   ca3_5_7[i][1][3] = __LINE__;
  36   ca3_5_7[i][1][4] = __LINE__;
  37   ca3_5_7[i][1][5] = __LINE__;
  38   ca3_5_7[i][1][6] = __LINE__;
  39
  40   ca3_5_7[i][2][0] = __LINE__;
  41   ca3_5_7[i][2][1] = __LINE__;
  42   ca3_5_7[i][2][2] = __LINE__;
  43   ca3_5_7[i][2][3] = __LINE__;
  44   ca3_5_7[i][2][4] = __LINE__;
  45   ca3_5_7[i][2][5] = __LINE__;
  46   ca3_5_7[i][2][6] = __LINE__;
  47
  48   ca3_5_7[i][3][0] = __LINE__;
  49   ca3_5_7[i][3][1] = __LINE__;
  50   ca3_5_7[i][3][2] = __LINE__;
  51   ca3_5_7[i][3][3] = __LINE__;
  52   ca3_5_7[i][3][4] = __LINE__;
  53   ca3_5_7[i][3][5] = __LINE__;
  54   ca3_5_7[i][3][6] = __LINE__;
  55
  56   ca3_5_7[i][4][0] = __LINE__;
  57   ca3_5_7[i][4][1] = __LINE__;
  58   ca3_5_7[i][4][2] = __LINE__;
  59   ca3_5_7[i][4][3] = __LINE__;
  60   ca3_5_7[i][4][4] = __LINE__;
  61   ca3_5_7[i][4][5] = __LINE__;
  62   ca3_5_7[i][4][6] = __LINE__;
  63
  64   ca3_5_7[1][i][5] = __LINE__;
  65   ca3_5_7[2][3][i] = __LINE__;
  66 }
  67
  68 void nowarn_ca_3_5_usi (unsigned short i)
  69 {
  70   if (i > USHRT_MAX - 1)
  71     i = USHRT_MAX - 1;
  72
  73   ca3_5_7[i][3][5] = __LINE__;
  74   ca3_5_7[1][i][5] = __LINE__;
  75   ca3_5_7[2][3][i] = __LINE__;
  76 }
  77
  78 void nowarn_ca_3_5_si (int i)
  79 {
  80   if (i > INT_MAX - 1)
  81     i = INT_MAX - 1;
  82
  83   ca3_5_7[i][3][5] = __LINE__;
  84   ca3_5_7[1][i][5] = __LINE__;
  85   ca3_5_7[2][3][i] = __LINE__;
  86 }
  87
  88 void nowarn_ca_3_5_ui (unsigned i)
  89 {
  90   if (i > UINT_MAX - 1)
  91     i = UINT_MAX - 1;
  92
  93   ca3_5_7[i][3][5] = __LINE__;
  94   ca3_5_7[1][i][5] = __LINE__;
  95   ca3_5_7[2][3][i] = __LINE__;
  96 }
  97
  98 void nowarn_ca_3_5_li (long i)
  99 {
 100   if (i > LONG_MAX - 1)
 101     i = LONG_MAX - 1;
 102
 103   ca3_5_7[i][3][5] = __LINE__;
 104   ca3_5_7[1][i][5] = __LINE__;
 105   ca3_5_7[2][3][i] = __LINE__;
 106 }
 107
 108 void nowarn_ca_3_5_uli (unsigned long i)
 109 {
 110   if (i > ULONG_MAX - 1)
 111     i = ULONG_MAX - 1;
 112
 113   ca3_5_7[i][3][5] = __LINE__;
 114   ca3_5_7[1][i][5] = __LINE__;
 115   ca3_5_7[2][3][i] = __LINE__;
 116 }