llvm-project
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1// RUN: %clang_cc1 -fblocks -fobjc-arc -fobjc-runtime-has-weak -triple i386-apple-darwin -print-ivar-layout -emit-llvm -o /dev/null %s > %t-32.layout
2// RUN: FileCheck --input-file=%t-32.layout %s
3
4@class NSString;
5extern void NSLog(NSString *format, ...);
6extern int printf(const char *, ...);
7
8int main(void) {
9NSString *strong;
10unsigned long long eightByte = 0x8001800181818181ull;
11// Test1
12// CHECK: Inline block variable layout: 0x0100, BL_STRONG:1, BL_OPERATOR:0
13void (^block1)(void) = ^{ printf("%#llx", eightByte); NSLog(@"%@", strong); };
14
15// Test2
16int i = 1;
17// CHECK: Inline block variable layout: 0x0100, BL_STRONG:1, BL_OPERATOR:0
18void (^block2)(void) = ^{ printf("%#llx, %d", eightByte, i); NSLog(@"%@", strong); };
19
20// Test3
21char ch = 'a';
22// CHECK: Inline block variable layout: 0x0100, BL_STRONG:1, BL_OPERATOR:0
23void (^block3)(void) = ^{ printf("%c %#llx", ch, eightByte); NSLog(@"%@", strong); };
24
25// Test4
26unsigned long fourByte = 0x8001ul;
27// CHECK: Inline block variable layout: 0x0100, BL_STRONG:1, BL_OPERATOR:0
28void (^block4)(void) = ^{ printf("%c %#lx", ch, fourByte); NSLog(@"%@", strong); };
29
30// Test5
31// Nothing gets printed here since the descriptor of this block is merged with
32// the descriptor of Test3's block.
33void (^block5)(void) = ^{ NSLog(@"%@", strong); printf("%c %#llx", ch, eightByte); };
34
35// Test6
36// CHECK: Block variable layout: BL_OPERATOR:0
37void (^block6)(void) = ^{ printf("%#llx", eightByte); };
38}
39
40/**
41struct __block_literal_generic { // 32bytes (64bit) and 20 bytes (32bit).
420 void *__isa;
434 int __flags;
448 int __reserved;
4512 void (*__invoke)(void *);
4616 struct __block_descriptor *__descriptor;
47};
48*/
49