gcc/testsuite/gcc.dg/vect/vect-bitfield-read-8.c

   1 /* { dg-require-effective-target vect_int } */
   2 /* { dg-require-effective-target vect_shift } */
   3 /* { dg-additional-options { "-fdump-tree-ifcvt-all" } } */
   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 ELT4 {4}
  17 #define N 32
  18 #define RES 25
  19 struct s A[N]
  20   = { ELT0, ELT1, ELT2, ELT3, ELT0, ELT1, ELT2, ELT3,
  21       ELT0, ELT1, ELT2, ELT3, ELT0, ELT1, ELT2, ELT3,
  22       ELT0, ELT1, ELT4, ELT3, ELT0, ELT1, ELT2, ELT3,
  23       ELT0, ELT1, ELT2, ELT3, ELT0, ELT1, ELT2, ELT3};
  24
  25 int __attribute__ ((noipa))
  26 f(struct s *ptr, unsigned n) {
  27     int res = 0;
  28     for (int i = 0; i < n; ++i)
  29       {
  30         if (ptr[i].i == 4)
  31           return res;
  32         res += ptr[i].i;
  33       }
  34
  35     return res;
  36 }
  37
  38 int main (void)
  39 {
  40   check_vect ();
  41
  42   if (f(&A[0], N) != RES)
  43     abort ();
  44
  45   return 0;
  46 }
  47
  48 /* { dg-final { scan-tree-dump "Bitfield OK to lower." "ifcvt" } } */
  49