gcc/testsuite/gcc.target/i386/fma4-vector-2.c

   1 /* { dg-do compile } */
   2 /* { dg-require-effective-target lp64 } */
   3 /* { dg-options "-O2 -mfma4 -ftree-vectorize -mtune=generic" } */
   4
   5 float r[256], s[256];
   6 float x[256];
   7 float y[256];
   8 float z[256];
   9
  10 void foo (void)
  11 {
  12   int i;
  13   for (i = 0; i < 256; ++i)
  14     {
  15       r[i] = x[i] * y[i] - z[i];
  16       s[i] = x[i] * y[i] + z[i];
  17     }
  18 }
  19
  20 /* { dg-final { scan-assembler "vfmaddps" } } */
  21 /* { dg-final { scan-assembler "vfmsubps" } } */