gcc/testsuite/gcc.dg/vect/vect-bitfield-read-1.c

   1 /* { dg-additional-options "-fdump-tree-optimized-details-blocks" } */
   2 /* { dg-require-effective-target vect_int } */
   3 /* { dg-require-effective-target vect_shift } */
   4
   5 #include <stdarg.h>
   6 #include "tree-vect.h"
   7
   8 extern void abort(void);
   9
  10 struct s { int i : 31; };
  11
  12 #define ELT0 {0}
  13 #define ELT1 {1}
  14 #define ELT2 {2}
  15 #define ELT3 {3}
  16 #define N 32
  17 #define RES 48
  18 struct s A[N]
  19   = { ELT0, ELT1, ELT2, ELT3, ELT0, ELT1, ELT2, ELT3,
  20       ELT0, ELT1, ELT2, ELT3, ELT0, ELT1, ELT2, ELT3,
  21       ELT0, ELT1, ELT2, ELT3, ELT0, ELT1, ELT2, ELT3,
  22       ELT0, ELT1, ELT2, ELT3, ELT0, ELT1, ELT2, ELT3};
  23
  24 int __attribute__ ((noipa))
  25 f(struct s *ptr, unsigned n) {
  26     int res = 0;
  27     for (int i = 0; i < n; ++i)
  28       res += ptr[i].i;
  29     return res;
  30 }
  31
  32 int main (void)
  33 {
  34   check_vect ();
  35
  36   if (f(&A[0], N) != RES)
  37     abort ();
  38
  39   return 0;
  40 }
  41
  42 /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" } } */
  43 /* { dg-final { scan-tree-dump-not "Invalid sum" "optimized" } } */