// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -fsyntax-only -fobjc-arc -x objective-c %s.result
// RUN: arcmt-test --args -triple x86_64-apple-darwin10 -fsyntax-only -x objective-c %s > %t
// RUN: diff %t %s.result

@interface NSAutoreleasePool
- - drain;
++new;
++alloc;
--init;
--autorelease;
- - release;
@end

void NSLog(id, ...);

void test1(int x) {
  // All this stuff get removed since nothing is happening inside.
}

void test2(int x) {
  @autoreleasepool {
    @autoreleasepool {
      while (x) {
        @autoreleasepool {
          ++x;
        }
      }

    }
  }
}