gcc/testsuite/gcc.target/arm/neon-vfma-1.c

   1 /* { dg-do compile } */
   2 /* { dg-require-effective-target arm_neonv2_ok } */
   3 /* { dg-options "-O2 -ftree-vectorize -ffast-math" } */
   4 /* { dg-add-options arm_neonv2 } */
   5 /* { dg-final { scan-assembler "vfma\\.f32\[    \]+\[dDqQ]" } } */
   6
   7 /* Verify that VFMA is used.  */
   8 void f1(int n, float a, float x[], float y[]) {
   9   int i;
  10   for (i = 0; i < n; ++i)
  11     y[i] = a * x[i] + y[i];
  12 }