gcc/testsuite/gcc.target/arm/wmul-4.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -march=armv6t2" } */
   3
   4 int mac(const int *a, const int *b, long long sqr, long long *sum)
   5 {
   6   int i;
   7   long long dotp = *sum;
   8
   9   for (i = 0; i < 150; i++) {
  10     dotp += (long long) b[i] * a[i];
  11     sqr += (long long) b[i] * b[i];
  12   }
  13
  14   *sum = dotp;
  15   return sqr;
  16 }
  17
  18 /* { dg-final { scan-assembler-times "smlal" 2 } } */