test/CodeGen/blocks-1.c

   1 // RUN: %clang_cc1 %s -emit-llvm -o %t -fblocks
   2 // RUN: grep "_Block_object_dispose" %t | count 17
   3 // RUN: grep "__copy_helper_block_" %t | count 14
   4 // RUN: grep "__destroy_helper_block_" %t | count 14
   5 // RUN: grep "__Block_byref_object_copy_" %t | count 2
   6 // RUN: grep "__Block_byref_object_dispose_" %t | count 2
   7 // RUN: grep "i32 135)" %t | count 2
   8 // RUN: grep "_Block_object_assign" %t | count 10
   9
  10 int printf(const char *, ...);
  11
  12 void test1() {
  13   __block int a;
  14   int b=2;
  15   a=1;
  16   printf("a is %d, b is %d\n", a, b);
  17   ^{ a = 10; printf("a is %d, b is %d\n", a, b); }(); // needs copy/dispose
  18   printf("a is %d, b is %d\n", a, b);
  19   a = 1;
  20   printf("a is %d, b is %d\n", a, b);
  21 }
  22
  23 void test2() {
  24   __block int a;
  25   a=1;
  26   printf("a is %d\n", a);
  27   ^{ // needs copy/dispose
  28     ^{ // needs copy/dispose
  29       a = 10;
  30     }();
  31   }();
  32   printf("a is %d\n", a);
  33   a = 1;
  34   printf("a is %d\n", a);
  35 }
  36
  37 void test3() {
  38   __block int k;
  39   __block int (^j)(int);
  40   ^{j=0; k=0;}(); // needs copy/dispose
  41 }
  42
  43 int test4() {
  44   extern int g;
  45   static int i = 1;
  46   ^(int j){ i = j; g = 0; }(0); // does not need copy/dispose
  47   return i + g;
  48 }
  49
  50 int g;
  51
  52 void test5() {
  53   __block struct { int i; } i;
  54   ^{ (void)i; }(); // needs copy/dispose
  55 }
  56
  57 void test6() {
  58   __block int i;
  59   ^{ i=1; }(); // needs copy/dispose
  60   ^{}(); // does not need copy/dispose
  61 }
  62
  63 void test7() {
  64   ^{ // does not need copy/dispose
  65     __block int i;
  66     ^{ i = 1; }(); // needs copy/dispose
  67   }();
  68 }
  69
  70 int main() {
  71   int rv = 0;
  72   test1();
  73   test2();
  74   test3();
  75   rv += test4();
  76   test5();
  77   return rv;
  78 }