gcc/testsuite/gcc.target/i386/pr58137.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O3 -mavx2" } */
   3
   4 typedef unsigned int U32;
   5
   6 struct sv {
   7   void* sv_any;
   8   U32 sv_refcnt;
   9   U32 sv_flags;
  10 };
  11 typedef struct sv SV;
  12
  13 struct xrv {
  14   SV * xrv_rv;
  15 };
  16 typedef struct xrv XRV;
  17
  18 extern XRV * PL_xrv_root;
  19
  20 void
  21 more_xrv (void)
  22 {
  23   register XRV* xrv;
  24   register XRV* xrvend;
  25   xrv = PL_xrv_root;
  26   xrvend = &xrv[200 / sizeof (XRV) - 1];
  27   while (xrv < xrvend)
  28   {
  29     xrv->xrv_rv = (SV*)(xrv + 1);
  30     xrv++;
  31   }
  32   xrv->xrv_rv = 0;
  33 }