gcc/testsuite/gcc.dg/vect/vect-bitfield-read-4.c

   1 /* { dg-additional-options "-fdump-tree-optimized-details-blocks" } */
   2 /* { dg-require-effective-target vect_shift } */
   3 /* { dg-require-effective-target vect_long_long } */
   4
   5 #include <stdarg.h>
   6 #include "tree-vect.h"
   7
   8 extern void abort(void);
   9
  10 struct s {
  11     unsigned i : 31;
  12     char x : 2;
  13     char a : 4;
  14 };
  15
  16 #define N 32
  17 #define ELT0 {0x7FFFFFFFUL, 3, 0}
  18 #define ELT1 {0x7FFFFFFFUL, 3, 1}
  19 #define ELT2 {0x7FFFFFFFUL, 3, 2}
  20 #define ELT3 {0x7FFFFFFFUL, 3, 3}
  21 #define RES 48
  22 struct s A[N]
  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       ELT0, ELT1, ELT2, ELT3, ELT0, ELT1, ELT2, ELT3};
  27
  28 int __attribute__ ((noipa))
  29 f(struct s *ptr, unsigned n) {
  30     int res = 0;
  31     for (int i = 0; i < n; ++i)
  32       res += ptr[i].a;
  33     return res;
  34 }
  35
  36 int main (void)
  37 {
  38   check_vect ();
  39
  40   if (f(&A[0], N) != RES)
  41     abort ();
  42
  43   return 0;
  44 }
  45
  46 /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" } } */
  47
  48 /* { dg-final { scan-tree-dump-not "Invalid sum" "optimized" } } */