kit

kit
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builtin_29_return_address.c (319B)

      1 /* __builtin_return_address(0): the current function's return address, read
      2  * from the spilled frame record. A real frame's return address is never null. */
      3 __attribute__((noinline)) static void* ra0(void) {
      4   return __builtin_return_address(0);
      5 }
      6 
      7 int test_main(void) {
      8   void* r = ra0();
      9   return r != 0 ? 42 : 1;
     10 }