gcc/testsuite/gcc.target/arc/nps400-1.c

   1 /* { dg-do compile } */
   2 /* { dg-skip-if "" { ! { clmcpu } } } */
   3 /* { dg-options "-mcpu=nps400 -mq-class -mbitops -munaligned-access -mcmem -O2 -fno-strict-aliasing" } */
   4
   5 enum npsdp_mem_space_type {
   6   NPSDP_EXTERNAL_MS = 1
   7 };
   8 struct npsdp_ext_addr {
   9   struct {
  10     struct {
  11       enum npsdp_mem_space_type mem_type : 1;
  12       unsigned msid : 5;
  13     };
  14   };
  15   char user_space[];
  16 } a;
  17 char b;
  18 void fn1() {
  19   ((struct npsdp_ext_addr *)a.user_space)->mem_type = NPSDP_EXTERNAL_MS;
  20   ((struct npsdp_ext_addr *)a.user_space)->msid =
  21       ((struct npsdp_ext_addr *)a.user_space)->mem_type ? 1 : 10;
  22   while (b)
  23     ;
  24 }