gcc/testsuite/gcc.dg/ssp-4.c

   1 /* { dg-do assemble } */
   2 /* { dg-options "-fstack-protector-strong -O1 -frename-registers" } */
   3 /* { dg-require-effective-target fstack_protector } */
   4
   5 typedef unsigned int uint32_t;
   6 struct ctx
   7 {
   8   uint32_t A;
   9 };
  10
  11 void *
  12 buffer_copy (const struct ctx *ctx, void *resbuf)
  13 {
  14   uint32_t buffer[4];
  15   buffer[0] = (ctx->A);
  16   __builtin_memcpy (resbuf, buffer, sizeof (buffer));
  17   return resbuf;
  18 }