gcc/testsuite/gcc.dg/graphite/pr42221.c

   1 /* { dg-options "-Os -fgraphite-identity" } */
   2
   3 static void b2w(unsigned int *out, const unsigned char *in, unsigned int len)
   4 {
   5   const unsigned char *bpend = in + len;
   6   for (; in != bpend; in += 4, ++out)
   7   {
   8     *out = (unsigned int) (in[0] ) |
   9           (unsigned int) (in[3] << 24);
  10   }
  11 }
  12 static void md4step(unsigned int state[4], const unsigned char *data)
  13 {
  14   unsigned int A, X[16];
  15   b2w(X, data, 64);
  16   state[0] += A;
  17 }
  18 void md4sum(void)
  19 {
  20   unsigned char final[128];
  21   unsigned int state[4];
  22   md4step(state, final);
  23   md4step(state, final + 64);
  24 }