gcc/testsuite/gcc.dg/vect/vect-mult-const-pattern-1.c

   1 /* { dg-require-effective-target vect_int } */
   2 /* { dg-require-effective-target vect_shift } */
   3
   4 #include <stdarg.h>
   5 #include "tree-vect.h"
   6
   7 #define N 256
   8
   9 __attribute__ ((noinline)) void
  10 foo (long long *arr)
  11 {
  12   for (int i = 0; i < N; i++)
  13     arr[i] *= 123;
  14 }
  15
  16 int
  17 main (void)
  18 {
  19   check_vect ();
  20   long long data[N];
  21   int i;
  22
  23   for (i = 0; i < N; i++)
  24     {
  25       data[i] = i;
  26       __asm__ volatile ("");
  27     }
  28
  29   foo (data);
  30 #pragma GCC novector
  31   for (i = 0; i < N; i++)
  32     {
  33       if (data[i] / 123 != i)
  34       __builtin_abort ();
  35       __asm__ volatile ("");
  36     }
  37
  38   return 0;
  39 }
  40
  41 /* { dg-final { scan-tree-dump {vect_recog_mult_pattern: detected:[^\n]* \* 123} "vect" { target aarch64*-*-* xfail aarch64_sve } } } */
  42 /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect"  { target aarch64*-*-* } } } */