gcc/testsuite/gcc.dg/gnu2x-complit-2.c

   1 /* Test C2x storage class specifiers in compound literals.  Thread-local
   2    cases, compilation tests, GNU __thread used.  */
   3 /* { dg-do compile } */
   4 /* { dg-options "-std=gnu2x" } */
   5 /* { dg-require-effective-target tls } */
   6
   7 #include <stddef.h>
   8
   9 /* __thread is OK at file scope, although of limited use since the
  10    thread-local object and its address are not constant expressions.  */
  11 size_t st = sizeof (__thread int) { 1 };
  12 size_t sst = sizeof (static __thread int) { 1 };
  13
  14 int *
  15 f ()
  16 {
  17   return &(static __thread int) { 2 };
  18 }