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 } 79
