old-autovect-branch/gcc/testsuite/gcc.c-torture/execute/builtins/mempcpy-2.c

   1 /* Copyright (C) 2003  Free Software Foundation.
   2
   3    Ensure that builtin mempcpy and stpcpy perform correctly.
   4
   5    Written by Jakub Jelinek, 21/05/2003.  */
   6
   7 extern void abort (void);
   8 typedef __SIZE_TYPE__ size_t;
   9 extern void *mempcpy (void *, const void *, size_t);
  10 extern int memcmp (const void *, const void *, size_t);
  11 extern int inside_main;
  12
  13 long buf1[64];
  14 char *buf2 = (char *) (buf1 + 32);
  15 long buf5[20];
  16 char buf7[20];
  17
  18 void
  19 __attribute__((noinline))
  20 test (long *buf3, char *buf4, char *buf6, int n)
  21 {
  22   int i = 0;
  23
  24   /* These should probably be handled by store_by_pieces on most arches.  */
  25   if (mempcpy (buf1, "ABCDEFGHI", 9) != (char *) buf1 + 9
  26       || memcmp (buf1, "ABCDEFGHI\0", 11))
  27     abort ();
  28
  29   if (mempcpy (buf1, "abcdefghijklmnopq", 17) != (char *) buf1 + 17
  30       || memcmp (buf1, "abcdefghijklmnopq\0", 19))
  31     abort ();
  32
  33   if (__builtin_mempcpy (buf3, "ABCDEF", 6) != (char *) buf1 + 6
  34       || memcmp (buf1, "ABCDEFghijklmnopq\0", 19))
  35     abort ();
  36
  37   if (__builtin_mempcpy (buf3, "a", 1) != (char *) buf1 + 1
  38       || memcmp (buf1, "aBCDEFghijklmnopq\0", 19))
  39     abort ();
  40
  41   if (mempcpy ((char *) buf3 + 2, "bcd" + ++i, 2) != (char *) buf1 + 4
  42       || memcmp (buf1, "aBcdEFghijklmnopq\0", 19)
  43       || i != 1)
  44     abort ();
  45
  46   /* These should probably be handled by move_by_pieces on most arches.  */
  47   if (mempcpy ((char *) buf3 + 4, buf5, 6) != (char *) buf1 + 10
  48       || memcmp (buf1, "aBcdRSTUVWklmnopq\0", 19))
  49     abort ();
  50
  51   if (__builtin_mempcpy ((char *) buf1 + ++i + 8, (char *) buf5 + 1, 1)
  52       != (char *) buf1 + 11
  53       || memcmp (buf1, "aBcdRSTUVWSlmnopq\0", 19)
  54       || i != 2)
  55     abort ();
  56
  57   if (mempcpy ((char *) buf3 + 14, buf6, 2) != (char *) buf1 + 16
  58       || memcmp (buf1, "aBcdRSTUVWSlmnrsq\0", 19))
  59     abort ();
  60
  61   if (mempcpy (buf3, buf5, 8) != (char *) buf1 + 8
  62       || memcmp (buf1, "RSTUVWXYVWSlmnrsq\0", 19))
  63     abort ();
  64
  65   if (mempcpy (buf3, buf5, 17) != (char *) buf1 + 17
  66       || memcmp (buf1, "RSTUVWXYZ01234567\0", 19))
  67     abort ();
  68
  69   __builtin_memcpy (buf3, "aBcdEFghijklmnopq\0", 19);
  70
  71   /* These should be handled either by movmemendM or mempcpy
  72      call.  */
  73   if (mempcpy ((char *) buf3 + 4, buf5, n + 6) != (char *) buf1 + 10
  74       || memcmp (buf1, "aBcdRSTUVWklmnopq\0", 19))
  75     abort ();
  76
  77   if (__builtin_mempcpy ((char *) buf1 + ++i + 8, (char *) buf5 + 1, n + 1)
  78       != (char *) buf1 + 12
  79       || memcmp (buf1, "aBcdRSTUVWkSmnopq\0", 19)
  80       || i != 3)
  81     abort ();
  82
  83   if (mempcpy ((char *) buf3 + 14, buf6, n + 2) != (char *) buf1 + 16
  84       || memcmp (buf1, "aBcdRSTUVWkSmnrsq\0", 19))
  85     abort ();
  86
  87   i = 1;
  88
  89   /* These might be handled by store_by_pieces.  */
  90   if (mempcpy (buf2, "ABCDEFGHI", 9) != buf2 + 9
  91       || memcmp (buf2, "ABCDEFGHI\0", 11))
  92     abort ();
  93
  94   if (mempcpy (buf2, "abcdefghijklmnopq", 17) != buf2 + 17
  95       || memcmp (buf2, "abcdefghijklmnopq\0", 19))
  96     abort ();
  97
  98   if (__builtin_mempcpy (buf4, "ABCDEF", 6) != buf2 + 6
  99       || memcmp (buf2, "ABCDEFghijklmnopq\0", 19))
 100     abort ();
 101
 102   if (__builtin_mempcpy (buf4, "a", 1) != buf2 + 1
 103       || memcmp (buf2, "aBCDEFghijklmnopq\0", 19))
 104     abort ();
 105
 106   if (mempcpy (buf4 + 2, "bcd" + i++, 2) != buf2 + 4
 107       || memcmp (buf2, "aBcdEFghijklmnopq\0", 19)
 108       || i != 2)
 109     abort ();
 110
 111   /* These might be handled by move_by_pieces.  */
 112   if (mempcpy (buf4 + 4, buf7, 6) != buf2 + 10
 113       || memcmp (buf2, "aBcdRSTUVWklmnopq\0", 19))
 114     abort ();
 115
 116   if (__builtin_mempcpy (buf2 + i++ + 8, buf7 + 1, 1)
 117       != buf2 + 11
 118       || memcmp (buf2, "aBcdRSTUVWSlmnopq\0", 19)
 119       || i != 3)
 120     abort ();
 121
 122   if (mempcpy (buf4 + 14, buf6, 2) != buf2 + 16
 123       || memcmp (buf2, "aBcdRSTUVWSlmnrsq\0", 19))
 124     abort ();
 125
 126   __builtin_memcpy (buf4, "aBcdEFghijklmnopq\0", 19);
 127
 128   /* These should be handled either by movmemendM or mempcpy
 129      call.  */
 130   if (mempcpy (buf4 + 4, buf7, n + 6) != buf2 + 10
 131       || memcmp (buf2, "aBcdRSTUVWklmnopq\0", 19))
 132     abort ();
 133
 134   if (__builtin_mempcpy (buf2 + i++ + 8, buf7 + 1, n + 1)
 135       != buf2 + 12
 136       || memcmp (buf2, "aBcdRSTUVWkSmnopq\0", 19)
 137       || i != 4)
 138     abort ();
 139
 140   if (mempcpy (buf4 + 14, buf6, n + 2) != buf2 + 16
 141       || memcmp (buf2, "aBcdRSTUVWkSmnrsq\0", 19))
 142     abort ();
 143 }
 144
 145 void
 146 main_test (void)
 147 {
 148   /* All these tests are allowed to call mempcpy/stpcpy.  */
 149   inside_main = 0;
 150   __builtin_memcpy (buf5, "RSTUVWXYZ0123456789", 20);
 151   __builtin_memcpy (buf7, "RSTUVWXYZ0123456789", 20);
 152   test (buf1, buf2, "rstuvwxyz", 0);
 153 }