llvm-gcc-4.2/gcc/testsuite/g++.apple/block-escape-switch.C

/* APPLE LOCAL file radar 6083129 byref escapes */
/* { dg-options "-fblocks" } */
/* { dg-do run } */


#include <stdio.h>

extern "C" void abort(void);
void _Block_byref_assign_copy(void *a, void *b){};

static int count;
static void _Block_byref_release(void * arg) {
  printf ("%p\n", arg);
  ++count;
}

int foo(int p, int q) {
  __byref int O1;
  switch (p) {
  case 1:
    {
      __byref int I1;
      I1 += 1;
      break;
    }
  case 10:
    {
      __byref int J1;
      break;
    }
  default :
    {
      __byref int D1;
      __byref int D2;
      switch (q)
	{
	case 11:
	  {
	    __byref int  Q1;
	    break;
	  }
	default:
	  {
	    __byref int  ID1;
	    __byref int  ID2;
	  }
	};
      break;
    }
  }
  return 0;
}

int main() {
  foo (1, 0);
  if (count != 2)
    abort();

  count = 0;
  foo (12, 11);
  if (count != 4)
    abort();

  count = 0;
  foo (12, 13);
  if (count != 5)
    abort();

  return 0;
}