gcc/testsuite/gcc.dg/vect/pr85597.c

   1 /* { dg-do compile } */
   2 /* { dg-additional-options "-O3" } */
   3 /* { dg-additional-options "-mfma" { target { x86_64-*-* i?86-*-* } } } */
   4
   5 extern double fma (double, double, double);
   6
   7 static inline void
   8 bar (int i, double *D, double *S)
   9 {
  10   while (i-- > 0)
  11     {
  12       D[0] = fma (1, S[0], D[0]);
  13       D[1] = fma (1, S[1], D[1]);
  14       D[2] = fma (1, S[2], D[2]);
  15       D[3] = fma (1, S[3], D[3]);
  16       D += 4;
  17       S += 4;
  18     }
  19 }
  20
  21 void
  22 foo (double *d, double *s)
  23 {
  24   bar (10, d, s);
  25 }
  26