gcc/testsuite/gcc.c-torture/execute/builtins/memops-asm-lib.c

   1 extern void abort (void);
   2 extern int inside_main;
   3 typedef __SIZE_TYPE__ size_t;
   4
   5 #define TEST_ABORT if (inside_main) abort()
   6
   7 /* LTO code is at the present to able to track that asm alias my_bcopy on builtin
   8    actually refers to this function.  See PR47181. */
   9 __attribute__ ((used))
  10 void *
  11 my_memcpy (void *d, const void *s, size_t n)
  12 {
  13   char *dst = (char *) d;
  14   const char *src = (const char *) s;
  15   while (n--)
  16     *dst++ = *src++;
  17   return (char *) d;
  18 }
  19
  20 /* LTO code is at the present to able to track that asm alias my_bcopy on builtin
  21    actually refers to this function.  See PR47181. */
  22 __attribute__ ((used))
  23 void
  24 my_bcopy (const void *s, void *d, size_t n)
  25 {
  26   char *dst = (char *) d;
  27   const char *src = (const char *) s;
  28   if (src >= dst)
  29     while (n--)
  30       *dst++ = *src++;
  31   else
  32     {
  33       dst += n;
  34       src += n;
  35       while (n--)
  36         *--dst = *--src;
  37     }
  38 }
  39
  40 __attribute__ ((used))
  41 void *
  42 my_memmove (void *d, const void *s, size_t n)
  43 {
  44   char *dst = (char *) d;
  45   const char *src = (const char *) s;
  46   if (src >= dst)
  47     while (n--)
  48       *dst++ = *src++;
  49   else
  50     {
  51       dst += n;
  52       src += n;
  53       while (n--)
  54         *--dst = *--src;
  55     }
  56
  57   return d;
  58 }
  59
  60 /* LTO code is at the present to able to track that asm alias my_bcopy on builtin
  61    actually refers to this function.  See PR47181. */
  62 __attribute__ ((used))
  63 void *
  64 my_memset (void *d, int c, size_t n)
  65 {
  66   char *dst = (char *) d;
  67   while (n--)
  68     *dst++ = c;
  69   return (char *) d;
  70 }
  71
  72 /* LTO code is at the present to able to track that asm alias my_bcopy on builtin
  73    actually refers to this function.  See PR47181. */
  74 __attribute__ ((used))
  75 void
  76 my_bzero (void *d, size_t n)
  77 {
  78   char *dst = (char *) d;
  79   while (n--)
  80     *dst++ = '\0';
  81 }
  82
  83 void *
  84 memcpy (void *d, const void *s, size_t n)
  85 {
  86   void *result = my_memcpy (d, s, n);
  87   TEST_ABORT;
  88   return result;
  89 }
  90
  91 void
  92 bcopy (const void *s, void *d, size_t n)
  93 {
  94   my_bcopy (s, d, n);
  95   TEST_ABORT;
  96 }
  97
  98 void *
  99 memset (void *d, int c, size_t n)
 100 {
 101   void *result = my_memset (d, c, n);
 102   TEST_ABORT;
 103   return result;
 104 }
 105
 106 void
 107 bzero (void *d, size_t n)
 108 {
 109   my_bzero (d, n);
 110   TEST_ABORT;
 111 }
 112
 113 #ifdef __vxworks
 114 /* The RTP C library uses bfill, which is defined in the same file as
 115    bzero and bcopy.  */
 116 #include "lib/bfill.c"
 117 #endif