xref: /llvm-project/clang/test/CodeGenObjC/block-byref-debuginfo.m (revision 46b0d0eef9e0a7290851cce0d44002b750584f1b)
1// RUN: %clang_cc1 -fblocks -fobjc-arc -fobjc-runtime-has-weak -debug-info-kind=limited -triple x86_64-apple-darwin -emit-llvm %s -o - | FileCheck %s
2
3// CHECK: define internal void @__Block_byref_object_copy_({{.*}} !dbg ![[BYREF_COPY_SP:.*]] {
4// CHECK: getelementptr inbounds {{.*}}, !dbg ![[BYREF_COPY_LOC:.*]]
5
6// CHECK: !DILocalVariable(name: "foo", {{.*}}type: ![[FOOTY:[0-9]+]])
7// CHECK: ![[FOOTY]] = {{.*}}!DICompositeType({{.*}}, name: "Foo"
8
9// CHECK-NOT: DIFlagBlockByrefStruct
10// CHECK: !DICompositeType(tag: DW_TAG_structure_type, name: "__block_literal_1",
11// CHECK-SAME:             size: 320, elements: ![[BL_ELTS:[0-9]+]])
12// CHECK: ![[BL_ELTS]] = !{{.*}}![[WFOO:[0-9]+]]}
13
14// Test that the foo is aligned at an 8 byte boundary in the DWARF
15// expression (256) that locates it inside of the byref descriptor:
16// CHECK: ![[WFOO]] = !DIDerivedType(tag: DW_TAG_member, name: "foo",
17// CHECK-SAME:                       baseType: ![[PTR:[0-9]+]]
18// CHECK-SAME:                       offset: 256)
19
20// CHECK: ![[PTR]] = !DIDerivedType(tag: DW_TAG_pointer_type,
21// CHECK-SAME:                      baseType: ![[WRAPPER:[0-9]+]]
22// CHECK: ![[WRAPPER]] = !DICompositeType(tag: DW_TAG_structure_type, scope:
23// CHECK:                                 elements: ![[WR_ELTS:[0-9]+]])
24// CHECK: ![[WR_ELTS]] = !{{.*}}![[WFOO:[0-9]+]]}
25// CHECK: ![[WFOO]] = !DIDerivedType(tag: DW_TAG_member, name: "foo",
26// CHECK-SAME:                       baseType: ![[FOOTY]]
27
28// CHECK: !DILocalVariable(name: "foo", {{.*}}type: ![[FOOTY]])
29
30// CHECK: ![[BYREF_COPY_SP]] = distinct !DISubprogram(linkageName: "__Block_byref_object_copy_",
31// CHECK: ![[BYREF_COPY_LOC]] = !DILocation(line: 0, scope: ![[BYREF_COPY_SP]])
32
33struct Foo {
34  unsigned char *data;
35};
36
37struct Foo2 {
38  id f0;
39};
40
41void (^bptr)(void);
42
43int func(void) {
44  __attribute__((__blocks__(byref))) struct Foo foo;
45  ^{ foo.data = 0; }();
46  __block struct Foo2 foo2;
47  bptr = ^{ foo2.f0 =0; };
48  return 0;
49}
50