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111
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1 /* { dg-do run } */
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2 /* { dg-options "-O2" } */
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3 /* { dg-require-effective-target alloca } */
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4
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5 typedef __SIZE_TYPE__ size_t;
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6 extern void abort (void);
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7 extern void exit (int);
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8 extern void *malloc (size_t);
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9 extern void *calloc (size_t, size_t);
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10 extern void *alloca (size_t);
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11 extern void *memcpy (void *, const void *, size_t);
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12 extern void *memset (void *, int, size_t);
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13 extern char *strcpy (char *, const char *);
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14
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15 struct A
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16 {
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17 char a[10];
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18 int b;
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19 char c[10];
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20 } y, w[4];
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21
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22 extern char exta[];
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23 extern char extb[30];
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24 extern struct A extc[];
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25 struct A zerol[0];
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26
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27 void
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28 __attribute__ ((noinline))
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29 test1 (void *q, int x)
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30 {
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31 struct A a;
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32 void *p = &a.a[3], *r;
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33 char var[x + 10];
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34 struct A vara[x + 10];
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35 if (x < 0)
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36 r = &a.a[9];
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37 else
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38 r = &a.c[1];
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39 if (__builtin_object_size (p, 1) != sizeof (a.a) - 3)
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40 abort ();
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41 if (__builtin_object_size (&a.c[9], 1)
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42 != sizeof (a.c) - 9)
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43 abort ();
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44 if (__builtin_object_size (q, 1) != (size_t) -1)
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45 abort ();
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46 if (__builtin_object_size (r, 1) != sizeof (a.c) - 1)
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47 abort ();
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48 if (x < 6)
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49 r = &w[2].a[1];
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50 else
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51 r = &a.a[6];
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52 if (__builtin_object_size (&y, 1) != sizeof (y))
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53 abort ();
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54 if (__builtin_object_size (w, 1) != sizeof (w))
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55 abort ();
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56 if (__builtin_object_size (&y.b, 1) != sizeof (a.b))
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57 abort ();
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58 if (__builtin_object_size (r, 1) != sizeof (a.a) - 1)
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59 abort ();
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60 if (x < 20)
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61 r = malloc (30);
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62 else
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63 r = calloc (2, 16);
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64 /* We may duplicate this test onto the two exit paths. On one path
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65 the size will be 32, the other it will be 30. If we don't duplicate
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66 this test, then the size will be 32. */
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67 if (__builtin_object_size (r, 1) != 2 * 16
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68 && __builtin_object_size (r, 1) != 30)
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69 abort ();
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70 if (x < 20)
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71 r = malloc (30);
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72 else
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73 r = calloc (2, 14);
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74 if (__builtin_object_size (r, 1) != 30)
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75 abort ();
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76 if (x < 30)
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77 r = malloc (sizeof (a));
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78 else
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79 r = &a.a[3];
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80 if (__builtin_object_size (r, 1) != sizeof (a))
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81 abort ();
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82 r = memcpy (r, "a", 2);
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83 if (__builtin_object_size (r, 1) != sizeof (a))
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84 abort ();
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85 r = memcpy (r + 2, "b", 2) + 2;
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86 if (__builtin_object_size (r, 1) != sizeof (a) - 4)
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87 abort ();
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88 r = &a.a[4];
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89 r = memset (r, 'a', 2);
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90 if (__builtin_object_size (r, 1) != sizeof (a.a) - 4)
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91 abort ();
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92 r = memset (r + 2, 'b', 2) + 2;
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93 if (__builtin_object_size (r, 1) != sizeof (a.a) - 8)
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94 abort ();
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95 r = &a.a[1];
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96 r = strcpy (r, "ab");
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97 if (__builtin_object_size (r, 1) != sizeof (a.a) - 1)
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98 abort ();
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99 r = strcpy (r + 2, "cd") + 2;
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100 if (__builtin_object_size (r, 1) != sizeof (a.a) - 5)
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101 abort ();
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102 if (__builtin_object_size (exta, 1) != (size_t) -1)
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103 abort ();
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104 if (__builtin_object_size (exta + 10, 1) != (size_t) -1)
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105 abort ();
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106 if (__builtin_object_size (&exta[5], 1) != (size_t) -1)
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107 abort ();
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108 if (__builtin_object_size (extb, 1) != sizeof (extb))
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109 abort ();
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110 if (__builtin_object_size (extb + 10, 1) != sizeof (extb) - 10)
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111 abort ();
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112 if (__builtin_object_size (&extb[5], 1) != sizeof (extb) - 5)
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113 abort ();
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114 if (__builtin_object_size (extc, 1) != (size_t) -1)
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115 abort ();
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116 if (__builtin_object_size (extc + 10, 1) != (size_t) -1)
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117 abort ();
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118 if (__builtin_object_size (&extc[5], 1) != (size_t) -1)
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119 abort ();
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120 if (__builtin_object_size (&extc->a, 1) != (size_t) -1)
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121 abort ();
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122 if (__builtin_object_size (&(extc + 10)->b, 1) != (size_t) -1)
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123 abort ();
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124 if (__builtin_object_size (&extc[5].c[3], 1) != (size_t) -1)
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125 abort ();
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126 if (__builtin_object_size (var, 1) != (size_t) -1)
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127 abort ();
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128 if (__builtin_object_size (var + 10, 1) != (size_t) -1)
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129 abort ();
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130 if (__builtin_object_size (&var[5], 1) != (size_t) -1)
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131 abort ();
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132 if (__builtin_object_size (vara, 1) != (size_t) -1)
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133 abort ();
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134 if (__builtin_object_size (vara + 10, 1) != (size_t) -1)
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135 abort ();
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136 if (__builtin_object_size (&vara[5], 1) != (size_t) -1)
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137 abort ();
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138 if (__builtin_object_size (&vara[0].a, 1) != sizeof (vara[0].a))
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139 abort ();
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140 if (__builtin_object_size (&vara[10].a[0], 1) != sizeof (vara[0].a))
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141 abort ();
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142 if (__builtin_object_size (&vara[5].a[4], 1) != sizeof (vara[0].a) - 4)
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143 abort ();
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144 if (__builtin_object_size (&vara[5].b, 1) != sizeof (vara[0].b))
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145 abort ();
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146 if (__builtin_object_size (&vara[7].c[7], 1) != sizeof (vara[0].c) - 7)
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147 abort ();
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148 if (__builtin_object_size (zerol, 1) != 0)
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149 abort ();
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150 if (__builtin_object_size (&zerol, 1) != 0)
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151 abort ();
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152 if (__builtin_object_size (&zerol[0], 1) != 0)
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153 abort ();
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154 if (__builtin_object_size (zerol[0].a, 1) != 0)
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155 abort ();
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156 if (__builtin_object_size (&zerol[0].a[0], 1) != 0)
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157 abort ();
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158 if (__builtin_object_size (&zerol[0].b, 1) != 0)
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159 abort ();
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160 if (__builtin_object_size ("abcdefg", 1) != sizeof ("abcdefg"))
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161 abort ();
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162 if (__builtin_object_size ("abcd\0efg", 1) != sizeof ("abcd\0efg"))
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163 abort ();
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164 if (__builtin_object_size (&"abcd\0efg", 1) != sizeof ("abcd\0efg"))
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165 abort ();
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166 if (__builtin_object_size (&"abcd\0efg"[0], 1) != sizeof ("abcd\0efg"))
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167 abort ();
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168 if (__builtin_object_size (&"abcd\0efg"[4], 1) != sizeof ("abcd\0efg") - 4)
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169 abort ();
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170 if (__builtin_object_size ("abcd\0efg" + 5, 1) != sizeof ("abcd\0efg") - 5)
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171 abort ();
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172 if (__builtin_object_size (L"abcdefg", 1) != sizeof (L"abcdefg"))
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173 abort ();
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174 r = (char *) L"abcd\0efg";
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175 if (__builtin_object_size (r + 2, 1) != sizeof (L"abcd\0efg") - 2)
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176 abort ();
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177 }
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178
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179 size_t l1 = 1;
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180
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181 void
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182 __attribute__ ((noinline))
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183 test2 (void)
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184 {
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185 struct B { char buf1[10]; char buf2[10]; } a;
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186 char *r, buf3[20];
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187 int i;
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188
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189 if (sizeof (a) != 20)
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190 return;
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191
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192 r = buf3;
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193 for (i = 0; i < 4; ++i)
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194 {
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195 if (i == l1 - 1)
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196 r = &a.buf1[1];
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197 else if (i == l1)
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198 r = &a.buf2[7];
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199 else if (i == l1 + 1)
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200 r = &buf3[5];
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201 else if (i == l1 + 2)
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202 r = &a.buf1[9];
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203 }
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204 if (__builtin_object_size (r, 1) != sizeof (buf3))
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205 abort ();
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206 r = &buf3[20];
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207 for (i = 0; i < 4; ++i)
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208 {
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209 if (i == l1 - 1)
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210 r = &a.buf1[7];
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211 else if (i == l1)
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212 r = &a.buf2[7];
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213 else if (i == l1 + 1)
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214 r = &buf3[5];
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215 else if (i == l1 + 2)
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216 r = &a.buf1[9];
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217 }
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218 if (__builtin_object_size (r, 1) != sizeof (buf3) - 5)
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219 abort ();
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220 r += 8;
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221 if (__builtin_object_size (r, 1) != sizeof (buf3) - 13)
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222 abort ();
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223 if (__builtin_object_size (r + 6, 1) != sizeof (buf3) - 19)
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224 abort ();
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225 }
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226
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227 void
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228 __attribute__ ((noinline))
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229 test3 (void)
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230 {
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231 char buf4[10];
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232 struct B { struct A a[2]; struct A b; char c[4]; char d; double e;
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233 _Complex double f; } x;
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234 double y;
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235 _Complex double z;
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236 double *dp;
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237
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238 if (__builtin_object_size (buf4, 1) != sizeof (buf4))
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239 abort ();
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240 if (__builtin_object_size (&buf4, 1) != sizeof (buf4))
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241 abort ();
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242 if (__builtin_object_size (&buf4[0], 1) != sizeof (buf4))
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243 abort ();
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244 if (__builtin_object_size (&buf4[1], 1) != sizeof (buf4) - 1)
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245 abort ();
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246 if (__builtin_object_size (&x, 1) != sizeof (x))
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247 abort ();
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248 if (__builtin_object_size (&x.a, 1) != sizeof (x.a))
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249 abort ();
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250 if (__builtin_object_size (&x.a[0], 1) != sizeof (x.a))
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251 abort ();
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252 if (__builtin_object_size (&x.a[0].a, 1) != sizeof (x.a[0].a))
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253 abort ();
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254 if (__builtin_object_size (&x.a[0].a[0], 1) != sizeof (x.a[0].a))
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255 abort ();
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256 if (__builtin_object_size (&x.a[0].a[3], 1) != sizeof (x.a[0].a) - 3)
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257 abort ();
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258 if (__builtin_object_size (&x.a[0].b, 1) != sizeof (x.a[0].b))
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259 abort ();
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260 if (__builtin_object_size (&x.a[1].c, 1) != sizeof (x.a[1].c))
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261 abort ();
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262 if (__builtin_object_size (&x.a[1].c[0], 1) != sizeof (x.a[1].c))
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263 abort ();
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264 if (__builtin_object_size (&x.a[1].c[3], 1) != sizeof (x.a[1].c) - 3)
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265 abort ();
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266 if (__builtin_object_size (&x.b, 1) != sizeof (x.b))
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267 abort ();
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268 if (__builtin_object_size (&x.b.a, 1) != sizeof (x.b.a))
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269 abort ();
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270 if (__builtin_object_size (&x.b.a[0], 1) != sizeof (x.b.a))
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271 abort ();
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272 if (__builtin_object_size (&x.b.a[3], 1) != sizeof (x.b.a) - 3)
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273 abort ();
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274 if (__builtin_object_size (&x.b.b, 1) != sizeof (x.b.b))
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275 abort ();
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276 if (__builtin_object_size (&x.b.c, 1) != sizeof (x.b.c))
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277 abort ();
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278 if (__builtin_object_size (&x.b.c[0], 1) != sizeof (x.b.c))
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279 abort ();
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280 if (__builtin_object_size (&x.b.c[3], 1) != sizeof (x.b.c) - 3)
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281 abort ();
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282 if (__builtin_object_size (&x.c, 1) != sizeof (x.c))
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283 abort ();
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284 if (__builtin_object_size (&x.c[0], 1) != sizeof (x.c))
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285 abort ();
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286 if (__builtin_object_size (&x.c[1], 1) != sizeof (x.c) - 1)
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287 abort ();
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288 if (__builtin_object_size (&x.d, 1) != sizeof (x.d))
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289 abort ();
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290 if (__builtin_object_size (&x.e, 1) != sizeof (x.e))
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291 abort ();
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292 if (__builtin_object_size (&x.f, 1) != sizeof (x.f))
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293 abort ();
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294 dp = &__real__ x.f;
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295 if (__builtin_object_size (dp, 1) != sizeof (x.f) / 2)
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296 abort ();
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297 dp = &__imag__ x.f;
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298 if (__builtin_object_size (dp, 1) != sizeof (x.f) / 2)
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299 abort ();
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300 dp = &y;
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301 if (__builtin_object_size (dp, 1) != sizeof (y))
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302 abort ();
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303 if (__builtin_object_size (&z, 1) != sizeof (z))
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304 abort ();
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305 dp = &__real__ z;
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306 if (__builtin_object_size (dp, 1) != sizeof (z) / 2)
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307 abort ();
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308 dp = &__imag__ z;
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309 if (__builtin_object_size (dp, 1) != sizeof (z) / 2)
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310 abort ();
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311 }
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312
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313 struct S { unsigned int a; };
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314
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315 char *
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316 __attribute__ ((noinline))
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317 test4 (char *x, int y)
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318 {
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319 register int i;
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320 struct A *p;
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321
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322 for (i = 0; i < y; i++)
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323 {
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324 p = (struct A *) x;
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325 x = (char *) &p[1];
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326 if (__builtin_object_size (p, 1) != (size_t) -1)
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327 abort ();
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328 }
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329 return x;
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330 }
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331
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332 void
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333 __attribute__ ((noinline))
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334 test5 (size_t x)
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335 {
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336 struct T { char buf[64]; char buf2[64]; } t;
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337 char *p = &t.buf[8];
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338 size_t i;
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339
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340 for (i = 0; i < x; ++i)
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341 p = p + 4;
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342 if (__builtin_object_size (p, 1) != sizeof (t.buf) - 8)
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343 abort ();
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344 memset (p, ' ', sizeof (t.buf) - 8 - 4 * 4);
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345 }
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346
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347 void
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348 __attribute__ ((noinline))
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349 test6 (void)
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350 {
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351 char buf[64];
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352 struct T { char buf[64]; char buf2[64]; } t;
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353 char *p = &buf[64], *q = &t.buf[64];
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354
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355 if (__builtin_object_size (p + 64, 1) != 0)
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356 abort ();
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357 if (__builtin_object_size (q + 0, 1) != 0)
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358 abort ();
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359 if (__builtin_object_size (q + 64, 1) != 0)
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360 abort ();
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361 }
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362
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363 void
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364 __attribute__ ((noinline))
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365 test7 (void)
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366 {
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367 struct T { char buf[10]; char buf2[10]; } t;
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368 char *p = &t.buf2[-4];
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369 char *q = &t.buf2[0];
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370 if (__builtin_object_size (p, 1) != 0)
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371 abort ();
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372 if (__builtin_object_size (q, 1) != sizeof (t.buf2))
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373 abort ();
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374 q = &t.buf[10];
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375 if (__builtin_object_size (q, 1) != 0)
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376 abort ();
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377 q = &t.buf[11];
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378 if (__builtin_object_size (q, 1) != 0)
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379 abort ();
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380 p = &t.buf[-4];
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381 if (__builtin_object_size (p, 1) != 0)
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382 abort ();
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383 }
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384
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385 int
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386 main (void)
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387 {
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388 struct S s[10];
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389 __asm ("" : "=r" (l1) : "0" (l1));
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390 test1 (main, 6);
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391 test2 ();
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392 test3 ();
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393 test4 ((char *) s, 10);
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394 test5 (4);
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395 test6 ();
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396 test7 ();
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397 exit (0);
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398 }
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