gcc/testsuite/gcc.dg/pr55150-2.c

   1 /* PR middle-end/55150 */
   2 /* { dg-do compile } */
   3 /* { dg-require-effective-target fpic } */
   4 /* { dg-options "-Os -g -fPIC" } */
   5
   6 typedef unsigned char DES_cblock[8];
   7  typedef struct DES_ks {
   8  }
   9  DES_key_schedule;
  10  void DES_ede3_cbcm_encrypt (const unsigned char *in, unsigned char *out,                      long length, DES_key_schedule * ks1,                    DES_key_schedule * ks2, DES_key_schedule * ks3,                 DES_cblock * ivec1, DES_cblock * ivec2, int enc) {
  11    register unsigned long tout0, tout1, xor0, xor1, m0, m1;
  12    register long l = length;
  13    unsigned long tin[2];
  14    unsigned char *iv1, *iv2;
  15    iv1 = &(*ivec1)[0];
  16    iv2 = &(*ivec2)[0];
  17    if (enc)     {
  18        (m0 = ((unsigned long) (*((iv1)++))), m0 |=        ((unsigned long) (*((iv1)++))) << 8L, m0 |=        ((unsigned long) (*((iv1)++))) << 16L, m0 |=        ((unsigned long) (*((iv1)++))) << 24L);
  19        (m1 = ((unsigned long) (*((iv1)++))), m1 |=        ((unsigned long) (*((iv1)++))) << 8L, m1 |=        ((unsigned long) (*((iv1)++))) << 16L, m1 |=        ((unsigned long) (*((iv1)++))) << 24L);
  20        (tout0 = ((unsigned long) (*((iv2)++))), tout0 |=        ((unsigned long) (*((iv2)++))) << 8L, tout0 |=        ((unsigned long) (*((iv2)++))) << 16L, tout0 |=        ((unsigned long) (*((iv2)++))) << 24L);
  21        for (l -= 8;
  22  l >= -7;
  23  l -= 8)        {
  24           DES_encrypt1 (tin, ks3, 1);
  25           DES_encrypt1 (tin, ks1, 1);
  26         }
  27        (*((iv1)++) = (unsigned char) (((m0)) & 0xff), *((iv1)++) =        (unsigned char) (((m0) >> 8L) & 0xff), *((iv1)++) =        (unsigned char) (((m0) >> 16L) & 0xff), *((iv1)++) =        (unsigned char) (((m0) >> 24L) & 0xff));
  28        (*((iv1)++) = (unsigned char) (((m1)) & 0xff), *((iv1)++) =        (unsigned char) (((m1) >> 8L) & 0xff), *((iv1)++) =        (unsigned char) (((m1) >> 16L) & 0xff), *((iv1)++) =        (unsigned char) (((m1) >> 24L) & 0xff));
  29        (*((iv2)++) = (unsigned char) (((tout0)) & 0xff), *((iv2)++) =        (unsigned char) (((tout0) >> 8L) & 0xff), *((iv2)++) =        (unsigned char) (((tout0) >> 16L) & 0xff), *((iv2)++) =        (unsigned char) (((tout0) >> 24L) & 0xff));
  30      }
  31    else     {
  32        (m0 = ((unsigned long) (*((iv1)++))), m0 |=        ((unsigned long) (*((iv1)++))) << 8L, m0 |=        ((unsigned long) (*((iv1)++))) << 16L, m0 |=        ((unsigned long) (*((iv1)++))) << 24L);
  33        (xor1 = ((unsigned long) (*((iv2)++))), xor1 |=        ((unsigned long) (*((iv2)++))) << 8L, xor1 |=        ((unsigned long) (*((iv2)++))) << 16L, xor1 |=        ((unsigned long) (*((iv2)++))) << 24L);
  34        for (l -= 8;
  35  l >= -7;
  36  l -= 8)        {
  37           DES_encrypt1 (tin, ks3, 1);
  38           if (l < 0)        {
  39               {
  40                 switch (l + 8)            {
  41                   case 7:                   *(--(out)) = (unsigned char) (((tout1) >> 16L) & 0xff);
  42                   case 6:                   *(--(out)) = (unsigned char) (((tout1) >> 8L) & 0xff);
  43                   case 5:                   *(--(out)) = (unsigned char) (((tout1)) & 0xff);
  44                   case 4:                   *(--(out)) = (unsigned char) (((tout0) >> 24L) & 0xff);
  45                   case 1:                   *(--(out)) = (unsigned char) (((tout0)) & 0xff);
  46                   }
  47               };
  48             }
  49         }
  50        (*((iv1)++) = (unsigned char) (((m0)) & 0xff), *((iv1)++) =        (unsigned char) (((m0) >> 8L) & 0xff), *((iv1)++) =        (unsigned char) (((m0) >> 16L) & 0xff), *((iv1)++) =        (unsigned char) (((m0) >> 24L) & 0xff));
  51        (*((iv2)++) = (unsigned char) (((xor0)) & 0xff), *((iv2)++) =        (unsigned char) (((xor0) >> 8L) & 0xff), *((iv2)++) =        (unsigned char) (((xor0) >> 16L) & 0xff), *((iv2)++) =        (unsigned char) (((xor0) >> 24L) & 0xff));
  52        (*((iv2)++) = (unsigned char) (((xor1)) & 0xff), *((iv2)++) =        (unsigned char) (((xor1) >> 8L) & 0xff), *((iv2)++) =        (unsigned char) (((xor1) >> 16L) & 0xff), *((iv2)++) =        (unsigned char) (((xor1) >> 24L) & 0xff));
  53      }
  54  }