gcc/testsuite/gcc.target/powerpc/pr101596-2.c

   1 /* { dg-require-effective-target power10_ok } */
   2 /* { dg-options "-mdejagnu-cpu=power10 -O2 -ftree-vectorize -fno-vect-cost-model -fdump-tree-vect-details" } */
   3
   4 /* Check vect_recog_mulhs_pattern can be detected with shift count 32.  */
   5
   6 #define N 128
   7
   8 typedef signed long long sLL;
   9 typedef unsigned long long uLL;
  10
  11 signed int si_a[N], si_b[N];
  12 unsigned int ui_a[N], ui_b[N];
  13 signed short sh_c[N];
  14 unsigned short uh_c[N];
  15
  16 void
  17 test1 ()
  18 {
  19   for (int i = 0; i < N; i++)
  20     sh_c[i] = ((sLL) si_a[i] * (sLL) si_b[i]) >> 32;
  21 }
  22
  23 void
  24 test2 ()
  25 {
  26   for (int i = 0; i < N; i++)
  27     uh_c[i] = ((uLL) ui_a[i] * (uLL) ui_b[i]) >> 32;
  28 }
  29
  30 /* { dg-final { scan-tree-dump-times "vect_recog_mulhs_pattern: detected" 2 "vect" } } */