gcc/testsuite/gcc.dg/vect/vect-bitfield-read-7.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 {
  11     unsigned i : 8;
  12     char a : 4;
  13 };
  14
  15 #define N 32
  16 #define ELT0 {0xFUL, 0}
  17 #define ELT1 {0xFUL, 1}
  18 #define ELT2 {0xFUL, 2}
  19 #define ELT3 {0xFUL, 3}
  20 #define RES 48
  21 struct s A[N]
  22   = { ELT0, ELT1, ELT2, ELT3, ELT0, ELT1, ELT2, ELT3,
  23       ELT0, ELT1, ELT2, ELT3, ELT0, ELT1, ELT2, ELT3,
  24       ELT0, ELT1, ELT2, ELT3, ELT0, ELT1, ELT2, ELT3,
  25       ELT0, ELT1, ELT2, ELT3, ELT0, ELT1, ELT2, ELT3};
  26
  27 int __attribute__ ((noipa))
  28 f(struct s *ptr, unsigned n) {
  29     int res = 0;
  30     for (int i = 0; i < n; ++i)
  31       res += ptr[i].a;
  32     return res;
  33 }
  34
  35 int main (void)
  36 {
  37   check_vect ();
  38
  39   if (f(&A[0], N) != RES)
  40     abort ();
  41
  42   return 0;
  43 }
  44
  45 /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" } } */
  46 /* { dg-final { scan-tree-dump-not "Invalid sum" "optimized" } } */