gcc/testsuite/gcc.target/i386/pr20020-1.c

   1 /* Check that 128-bit struct's are represented as TImode values.  */
   2 /* { dg-do compile { target int128 } } */
   3 /* { dg-skip-if "different ABI" { x86_64-*-mingw* } } */
   4 /* { dg-options "-O2 -fdump-rtl-expand" } */
   5
   6 struct shared_ptr_struct
   7 {
   8   unsigned long long phase:48;
   9   unsigned short thread:16;
  10   union
  11     {
  12       void *addr;
  13       unsigned long long pad;
  14     };
  15 };
  16 typedef struct shared_ptr_struct sptr_t;
  17
  18 sptr_t S;
  19
  20 sptr_t
  21 sptr_result (void)
  22 {
  23   return S;
  24 }
  25 /* { dg-final { scan-rtl-dump "\\\(set \\\(reg:TI \[0-9\]* \\\[ <retval> \\\]\\\)" "expand" } } */
  26 /* { dg-final { scan-rtl-dump "\\\(set \\\(reg/i:TI 0 ax\\\)" "expand" } } */