compiler-rt/test/BlocksRuntime/byrefcopyinner.c

   1 //
   2 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   3 // See https://llvm.org/LICENSE.txt for license information.
   4 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   5
   6 #include <Block.h>
   7 #include <stdio.h>
   8
   9 // CONFIG rdar://6225809
  10 // fixed in 5623
  11
  12 int main(int argc, char *argv[]) {
  13     __block int a = 42;
  14     int* ap = &a; // just to keep the address on the stack.
  15
  16     void (^b)(void) = ^{
  17         //a;              // workaround, a should be implicitly imported
  18         Block_copy(^{
  19             a = 2;
  20         });
  21     };
  22
  23     Block_copy(b);
  24
  25     if(&a == ap) {
  26         printf("**** __block heap storage should have been created at this point\n");
  27         return 1;
  28     }
  29     printf("%s: Success\n", argv[0]);
  30     return 0;
  31 }