gcc/testsuite/gcc.target/ia64/pr52657.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O" } */
   3
   4 typedef unsigned long int mp_limb_t;
   5
   6 typedef struct
   7 {
   8   int _mp_alloc;
   9   int _mp_size;
  10   mp_limb_t *_mp_d;
  11 } __mpz_struct;
  12
  13 typedef __mpz_struct mpz_t[1];
  14 typedef mp_limb_t * mp_ptr;
  15 typedef const mp_limb_t * mp_srcptr;
  16 typedef long int mp_size_t;
  17
  18 extern mp_limb_t __gmpn_addmul_2 (mp_ptr, mp_srcptr, mp_size_t, mp_srcptr);
  19
  20 void
  21 __gmpn_redc_2 (mp_ptr rp, mp_ptr up, mp_srcptr mp, mp_size_t n, mp_srcptr mip)
  22 {
  23   mp_limb_t q[2];
  24   mp_size_t j;
  25   mp_limb_t upn;
  26
  27   for (j = n - 2; j >= 0; j -= 2)
  28     {
  29       mp_limb_t _ph, _pl;
  30       __asm__ ("xma.hu %0 = %3, %5, f0\n\t"
  31                "xma.l %1 = %3, %5, f0\n\t"
  32                ";;\n\t"
  33                "xma.l %0 = %3, %4, %0\n\t"
  34                ";;\n\t"
  35                "xma.l %0 = %2, %5, %0"
  36                : "=&f" (q[1]), "=&f" (q[0])
  37                : "f" (mip[1]), "f" (mip[0]), "f" (up[1]), "f" (up[0]));
  38       upn = up[n];
  39       up[1] = __gmpn_addmul_2 (up, mp, n, q);
  40       up[0] = up[n];
  41       up[n] = upn;
  42       up += 2;
  43     }
  44 }