gcc/testsuite/gcc.dg/pr94269.c

   1 /* { dg-do compile { target aarch64*-*-* } } */
   2 /* { dg-options "-O2 -ftree-loop-vectorize -funsafe-math-optimizations -march=armv8.2-a+sve -msve-vector-bits=256" } */
   3
   4 float
   5 foo(long n, float *x, int inc_x,
   6             float *y, int inc_y)
   7 {
   8   float dot = 0.0;
   9   int ix = 0, iy = 0;
  10
  11   if (n < 0) {
  12     return dot;
  13   }
  14
  15   int i = 0;
  16   while (i < n) {
  17     dot += y[iy] * x[ix];
  18     ix  += inc_x;
  19     iy  += inc_y;
  20     i++;
  21   }
  22
  23   return dot;
  24 }
  25
  26 /* { dg-final { scan-assembler-not "smaddl" { target aarch64*-*-* } } } */