xref: /llvm-project/lldb/test/Shell/SymbolFile/DWARF/x86/member-pointers.cpp (revision e370946978c3b50cc2716878122be332df554c6f)
1 // REQUIRES: lld
2 
3 // Itanium ABI:
4 // RUN: %clang --target=x86_64-pc-linux -gdwarf -c -o %t_linux.o %s
5 // RUN: %lldb -f %t_linux.o -b -o "target variable s1 s2 m1 m2 v1 v2 v3 v4" | FileCheck --check-prefix=CHECK-GNU %s
6 //
7 // CHECK-GNU: (void (Single1::*)()) s1 = 0x00000000000000000000000000000000
8 // CHECK-GNU: (void (Single2::*)()) s2 = 0x00000000000000000000000000000000
9 // CHECK-GNU: (void (Multiple1::*)()) m1 = 0x00000000000000000000000000000000
10 // CHECK-GNU: (void (Multiple2::*)()) m2 = 0x00000000000000000000000000000000
11 // CHECK-GNU: (void (Virtual1::*)()) v1 = 0x00000000000000000000000000000000
12 // CHECK-GNU: (void (Virtual2::*)()) v2 = 0x00000000000000000000000000000000
13 // CHECK-GNU: (void (Virtual3::*)()) v3 = 0x00000000000000000000000000000000
14 // CHECK-GNU: (void (Virtual4::*)()) v4 = 0x00000000000000000000000000000000
15 
16 // Microsoft ABI:
17 // RUN: %clang_cl --target=x86_64-windows-msvc -c -gdwarf -o %t_win.obj /GS- -- %s
18 // RUN: lld-link /out:%t_win.exe %t_win.obj /entry:main /debug /nodefaultlib
19 // RUN: %lldb -f %t_win.exe -b -o "target variable s1 s2 m1 m2 v1 v2 v3 v4" | FileCheck --check-prefix=CHECK-MSVC %s
20 //
21 // CHECK-MSVC: (void (Single1::*)()) s1 = 0x0000000000000000
22 // CHECK-MSVC: (void (Single2::*)()) s2 = 0x0000000000000000
23 // CHECK-MSVC: (void (Multiple1::*)()) m1 = 0x00000000000000000000000000000000
24 // CHECK-MSVC: (void (Multiple2::*)()) m2 = 0x00000000000000000000000000000000
25 // CHECK-MSVC: (void (Virtual1::*)()) v1 = 0xffffffff000000000000000000000000
26 // CHECK-MSVC: (void (Virtual2::*)()) v2 = 0xffffffff000000000000000000000000
27 // CHECK-MSVC: (void (Virtual3::*)()) v3 = 0xffffffff000000000000000000000000
28 // CHECK-MSVC: (void (Virtual4::*)()) v4 = 0xffffffff000000000000000000000000
29 
30 // clang-format off
31 struct Single1 { void s1() {} };
32 struct Single2 : Single1 { void s2() {} };
33 
34 struct Helper {};
35 struct Multiple1 : Single1, Helper { void m1() {} };
36 struct Multiple2 : Multiple1 { void m2() {} };
37 
38 struct Virtual1 : virtual Single1 { void v1() {} };
39 struct Virtual2 : Virtual1 { void v2() {} };
40 struct Virtual3 : virtual Multiple1 { void v3() {} };
41 struct Virtual4 : Virtual1, Helper { void v4() {} };
42 
43 void (Single1::*s1)() = nullptr;
44 void (Single2::*s2)() = nullptr;
45 void (Multiple1::*m1)() = nullptr;
46 void (Multiple2::*m2)() = nullptr;
47 void (Virtual1::*v1)() = nullptr;
48 void (Virtual2::*v2)() = nullptr;
49 void (Virtual3::*v3)() = nullptr;
50 void (Virtual4::*v4)() = nullptr;
51 
52 int main(int argc, char *argv[]) {
53   // We need to force emission of type info to DWARF. That's reasonable, because
54   // Clang doesn't know that we need it to infer member-pointer sizes. We could
55   // probably teach Clang to do so, but in most real-world scenarios this might
56   // be a non-issue.
57   Virtual1 vi1;
58   Virtual2 vi2;
59   Virtual3 vi3;
60   Virtual4 vi4;
61   int sum = sizeof(Single2) + sizeof(Multiple2);
62   return argc < sum ? 0 : 1;
63 }
64