test/release-workaround.m

   1 // TEST_CONFIG ARCH=x86_64 MEM=mrc
   2 // TEST_CFLAGS -framework Foundation
   3
   4 // rdar://20206767
   5
   6 #include <Foundation/Foundation.h>
   7 #include "test.h"
   8
   9
  10 @interface Test : NSObject @end
  11 @implementation Test
  12 @end
  13
  14
  15 int main()
  16 {
  17     id buf[1];
  18     buf[0] = [Test class];
  19     id obj = (id)buf;
  20     [obj retain];
  21     [obj retain];
  22
  23     uintptr_t rax;
  24
  25     [obj release];
  26     asm("mov %%rax, %0" : "=r" (rax));
  27     testassert(rax == 0);
  28
  29     objc_release(obj);
  30     asm("mov %%rax, %0" : "=r" (rax));
  31     testassert(rax == 0);
  32
  33     succeed(__FILE__);
  34 }