clang/test/CodeGen/blocks-1.c

   1 // RUN: %clang_cc1 -triple thumbv7-apple-ios %s -emit-llvm -o %t -fblocks
   2 // RUN: grep "_Block_object_dispose" %t | count 12
   3 // RUN: grep "__copy_helper_block_" %t | count 9
   4 // RUN: grep "__destroy_helper_block_" %t | count 9
   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 5
   9
  10 // RUN: %clang_cc1 -triple thumbv7-unknown-windows %s -emit-llvm -o %t -fblocks
  11 // RUN: grep "_Block_object_dispose" %t | count 12
  12 // RUN: grep "__copy_helper_block_" %t | count 11
  13 // RUN: grep "__destroy_helper_block_" %t | count 11
  14 // RUN: grep "__Block_byref_object_copy_" %t | count 2
  15 // RUN: grep "__Block_byref_object_dispose_" %t | count 2
  16 // RUN: grep "i32 135)" %t | count 2
  17 // RUN: grep "_Block_object_assign" %t | count 5
  18
  19 int printf(const char *, ...);
  20
  21 void test1(void) {
  22   __block int a;
  23   int b=2;
  24   a=1;
  25   printf("a is %d, b is %d\n", a, b);
  26   ^{ a = 10; printf("a is %d, b is %d\n", a, b); }(); // needs copy/dispose
  27   printf("a is %d, b is %d\n", a, b);
  28   a = 1;
  29   printf("a is %d, b is %d\n", a, b);
  30 }
  31
  32 void test2(void) {
  33   __block int a;
  34   a=1;
  35   printf("a is %d\n", a);
  36   ^{ // needs copy/dispose
  37     ^{ // needs copy/dispose
  38       a = 10;
  39     }();
  40   }();
  41   printf("a is %d\n", a);
  42   a = 1;
  43   printf("a is %d\n", a);
  44 }
  45
  46 void test3(void) {
  47   __block int k;
  48   __block int (^j)(int);
  49   ^{j=0; k=0;}(); // needs copy/dispose
  50 }
  51
  52 int test4(void) {
  53   extern int g;
  54   static int i = 1;
  55   ^(int j){ i = j; g = 0; }(0); // does not need copy/dispose
  56   return i + g;
  57 }
  58
  59 int g;
  60
  61 void test5(void) {
  62   __block struct { int i; } i;
  63   ^{ (void)i; }(); // needs copy/dispose
  64 }
  65
  66 void test6(void) {
  67   __block int i;
  68   ^{ i=1; }(); // needs copy/dispose
  69   ^{}(); // does not need copy/dispose
  70 }
  71
  72 void test7(void) {
  73   ^{ // does not need copy/dispose
  74     __block int i;
  75     ^{ i = 1; }(); // needs copy/dispose
  76   }();
  77 }
  78
  79 int main(void) {
  80   int rv = 0;
  81   test1();
  82   test2();
  83   test3();
  84   rv += test4();
  85   test5();
  86   return rv;
  87 }