xref: /aosp_15_r20/external/clang/test/CodeGenCXX/debug-info-nodebug.cpp (revision 67e74705e28f6214e480b399dd47ea732279e315)
1*67e74705SXin Li // RUN: %clang_cc1 -DSETNODEBUG=0 -emit-llvm -debug-info-kind=limited %s -o - | FileCheck %s --check-prefix=YESINFO
2*67e74705SXin Li // RUN: %clang_cc1 -DSETNODEBUG=1 -emit-llvm -debug-info-kind=limited %s -o - | FileCheck %s --check-prefix=NOINFO
3*67e74705SXin Li 
4*67e74705SXin Li #if SETNODEBUG
5*67e74705SXin Li #define NODEBUG __attribute__((nodebug))
6*67e74705SXin Li #else
7*67e74705SXin Li #define NODEBUG
8*67e74705SXin Li #endif
9*67e74705SXin Li 
10*67e74705SXin Li // Const global variable. Use it so it gets emitted.
11*67e74705SXin Li NODEBUG static const int const_global_int_def = 1;
12*67e74705SXin Li void func1(int);
func2()13*67e74705SXin Li void func2() { func1(const_global_int_def); }
14*67e74705SXin Li // YESINFO-DAG: !DIGlobalVariable(name: "const_global_int_def"
15*67e74705SXin Li // NOINFO-NOT:  !DIGlobalVariable(name: "const_global_int_def"
16*67e74705SXin Li 
17*67e74705SXin Li // Global variable with a more involved type.
18*67e74705SXin Li // If the variable has no debug info, the type should not appear either.
19*67e74705SXin Li struct S1 {
20*67e74705SXin Li   int a;
21*67e74705SXin Li   int b;
22*67e74705SXin Li };
23*67e74705SXin Li NODEBUG S1 global_struct = { 2, 3 };
24*67e74705SXin Li // YESINFO-DAG: !DICompositeType({{.*}} name: "S1"
25*67e74705SXin Li // NOINFO-NOT:  !DICompositeType({{.*}} name: "S1"
26*67e74705SXin Li // YESINFO-DAG: !DIGlobalVariable(name: "global_struct"
27*67e74705SXin Li // NOINFO-NOT:  !DIGlobalVariable(name: "global_struct"
28*67e74705SXin Li 
29*67e74705SXin Li // Static data members. Const member needs a use.
30*67e74705SXin Li // Also the class as a whole needs a use, so that we produce debug info for
31*67e74705SXin Li // the entire class (iterating over the members, demonstrably skipping those
32*67e74705SXin Li // with 'nodebug').
33*67e74705SXin Li struct S2 {
34*67e74705SXin Li   NODEBUG static int static_member;
35*67e74705SXin Li   NODEBUG static const int static_const_member = 4;
36*67e74705SXin Li };
37*67e74705SXin Li int S2::static_member = 5;
func3()38*67e74705SXin Li void func3() {
39*67e74705SXin Li   S2 junk;
40*67e74705SXin Li   func1(S2::static_const_member);
41*67e74705SXin Li }
42*67e74705SXin Li // YESINFO-DAG: !DIGlobalVariable(name: "static_member"
43*67e74705SXin Li // NOINFO-NOT:  !DIGlobalVariable(name: "static_member"
44*67e74705SXin Li // YESINFO-DAG: !DIDerivedType({{.*}} name: "static_const_member"
45*67e74705SXin Li // NOINFO-NOT:  !DIDerivedType({{.*}} name: "static_const_member"
46*67e74705SXin Li 
47*67e74705SXin Li // Function-local static and auto variables.
func4()48*67e74705SXin Li void func4() {
49*67e74705SXin Li   NODEBUG static int static_local = 6;
50*67e74705SXin Li   NODEBUG        int normal_local = 7;
51*67e74705SXin Li }
52*67e74705SXin Li // YESINFO-DAG: !DIGlobalVariable(name: "static_local"
53*67e74705SXin Li // NOINFO-NOT:  !DIGlobalVariable(name: "static_local"
54*67e74705SXin Li // YESINFO-DAG: !DILocalVariable(name: "normal_local"
55*67e74705SXin Li // NOINFO-NOT:  !DILocalVariable(name: "normal_local"
56