1 // RUN: %clang_cc1 -triple x86_64-pc-win32 -emit-llvm %s -o - | FileCheck -allow-deprecated-dag-overlap --check-prefix=COFF %s
2 // COFF-DAG: @bar = external dso_local global i32
3 // COFF-DAG: @weak_bar = extern_weak dso_local global i32
4 // COFF-DAG: declare dso_local void @foo()
5 // COFF-DAG: @baz = dso_local global i32 42
6 // COFF-DAG: define dso_local i32* @zed()
7 // COFF-DAG: @thread_var = external dso_local thread_local global i32
8 // COFF-DAG: @local_thread_var = dso_local thread_local global i32 42
9 // COFF-DAG: @import_var = external dllimport global i32
10 // COFF-DAG: declare dllimport void @import_func()
11 
12 // RUN: %clang_cc1 -triple x86_64-w64-mingw32 -emit-llvm %s -o - | FileCheck -allow-deprecated-dag-overlap --check-prefix=MINGW %s
13 // MINGW-DAG: @bar = external global i32
14 // MINGW-DAG: @weak_bar = extern_weak global i32
15 // MINGW-DAG: declare dso_local void @foo()
16 // MINGW-DAG: @baz = dso_local global i32 42
17 // MINGW-DAG: define dso_local i32* @zed()
18 // MINGW-DAG: @thread_var = external dso_local thread_local global i32
19 // MINGW-DAG: @local_thread_var = dso_local thread_local global i32 42
20 // MINGW-DAG: @import_var = external dllimport global i32
21 // MINGW-DAG: declare dllimport void @import_func()
22 
23 // RUN: %clang_cc1 -triple x86_64-pc-linux -emit-llvm -mrelocation-model static %s -o - | FileCheck -allow-deprecated-dag-overlap --check-prefix=STATIC %s
24 // STATIC-DAG: @bar = external dso_local global i32
25 // STATIC-DAG: @weak_bar = extern_weak dso_local global i32
26 // STATIC-DAG: declare dso_local void @foo()
27 // STATIC-DAG: @baz = dso_local global i32 42
28 // STATIC-DAG: define dso_local i32* @zed()
29 // STATIC-DAG: @thread_var = external thread_local global i32
30 // STATIC-DAG: @local_thread_var = dso_local thread_local global i32 42
31 // STATIC-DAG: @import_var = external dso_local global i32
32 // STATIC-DAG: declare dso_local void @import_func()
33 
34 // RUN: %clang_cc1 -triple x86_64-pc-linux -emit-llvm -pic-is-pie -mpie-copy-relocations %s -o - | FileCheck -allow-deprecated-dag-overlap --check-prefix=PIE-COPY %s
35 // PIE-COPY-DAG: @bar = external dso_local global i32
36 // PIE-COPY-DAG: @weak_bar = extern_weak global i32
37 // PIE-COPY-DAG: declare void @foo()
38 // PIE-COPY-DAG: @baz = dso_local global i32 42
39 // PIE-COPY-DAG: define dso_local i32* @zed()
40 // PIE-COPY-DAG: @thread_var = external thread_local global i32
41 // PIE-COPY-DAG: @local_thread_var = dso_local thread_local global i32 42
42 // PIE-COPY-DAG: @import_var = external dso_local global i32
43 // PIE-COPY-DAG: declare void @import_func()
44 
45 // RUN: %clang_cc1 -triple x86_64-pc-linux -emit-llvm -pic-is-pie %s -o - | FileCheck -allow-deprecated-dag-overlap --check-prefix=PIE %s
46 // PIE-DAG: @bar = external global i32
47 // PIE-DAG: @weak_bar = extern_weak global i32
48 // PIE-DAG: declare void @foo()
49 // PIE-DAG: @baz = dso_local global i32 42
50 // PIE-DAG: define dso_local i32* @zed()
51 // PIE-DAG: @thread_var = external thread_local global i32
52 // PIE-DAG: @local_thread_var = dso_local thread_local global i32 42
53 // PIE-DAG: @import_var = external global i32
54 // PIE-DAG: declare void @import_func()
55 
56 // RUN: %clang_cc1 -triple x86_64-pc-linux -emit-llvm -mrelocation-model static -fno-plt %s -o - | FileCheck -allow-deprecated-dag-overlap --check-prefix=NOPLT %s
57 // NOPLT-DAG: @bar = external dso_local global i32
58 // NOPLT-DAG: @weak_bar = extern_weak dso_local global i32
59 // NOPLT-DAG: declare void @foo()
60 // NOPLT-DAG: @baz = dso_local global i32 42
61 // NOPLT-DAG: define dso_local i32* @zed()
62 // NOPLT-DAG: @thread_var = external thread_local global i32
63 // NOPLT-DAG: @local_thread_var = dso_local thread_local global i32 42
64 // NOPLT-DAG: @import_var = external dso_local global i32
65 // NOPLT-DAG: declare void @import_func()
66 
67 // RUN: %clang_cc1 -triple x86_64-pc-linux -emit-llvm -fno-plt -pic-is-pie -mpie-copy-relocations %s -o - | FileCheck -allow-deprecated-dag-overlap --check-prefix=PIE-COPY-NOPLT %s
68 // PIE-COPY-NOPLT-DAG: @bar = external dso_local global i32
69 // PIE-COPY-NOPLT-DAG: @weak_bar = extern_weak global i32
70 // PIE-COPY-NOPLT-DAG: declare void @foo()
71 // PIE-COPY-NOPLT-DAG: @baz = dso_local global i32 42
72 // PIE-COPY-NOPLT-DAG: define dso_local i32* @zed()
73 // PIE-COPY-NOPLT-DAG: @thread_var = external thread_local global i32
74 // PIE-COPY-NOPLT-DAG: @local_thread_var = dso_local thread_local global i32 42
75 // PIE-COPY-NOPLT-DAG: @import_var = external dso_local global i32
76 // PIE-COPY-NOPLT-DAG: declare void @import_func()
77 
78 // RUN: %clang_cc1 -triple x86_64-pc-linux -emit-llvm -pic-is-pie -fno-plt %s -o - | FileCheck -allow-deprecated-dag-overlap --check-prefix=PIE-NO-PLT %s
79 // RUN: %clang_cc1 -triple powerpc64le-pc-linux -emit-llvm -mrelocation-model static %s -o - | FileCheck -allow-deprecated-dag-overlap --check-prefix=PIE-NO-PLT %s
80 // PIE-NO-PLT-DAG: @bar = external global i32
81 // PIE-NO-PLT-DAG: @weak_bar = extern_weak global i32
82 // PIE-NO-PLT-DAG: declare void @foo()
83 // PIE-NO-PLT-DAG: @baz = dso_local global i32 42
84 // PIE-NO-PLT-DAG: define dso_local i32* @zed()
85 // PIE-NO-PLT-DAG: @thread_var = external thread_local global i32
86 // PIE-NO-PLT-DAG: @local_thread_var = dso_local thread_local global i32 42
87 // PIE-NO-PLT-DAG: @import_var = external global i32
88 // PIE-NO-PLT-DAG: declare void @import_func()
89 
90 // RUN: %clang_cc1 -triple x86_64-pc-linux -emit-llvm %s -o - | FileCheck -allow-deprecated-dag-overlap --check-prefix=SHARED %s
91 // SHARED-DAG: @bar = external global i32
92 // SHARED-DAG: @weak_bar = extern_weak global i32
93 // SHARED-DAG: declare void @foo()
94 // SHARED-DAG: @baz = global i32 42
95 // SHARED-DAG: define i32* @zed()
96 // SHARED-DAG: @thread_var = external thread_local global i32
97 // SHARED-DAG: @local_thread_var = thread_local global i32 42
98 // PIE-NO-PLT-DAG: @import_var = external global i32
99 // PIE-NO-PLT-DAG: declare void @import_func()
100 
101 __attribute__((dllimport)) extern int import_var;
102 __attribute__((dllimport)) void import_func(void);
103 
104 int *use_import() {
105   import_func();
106   return &import_var;
107 }
108 
109 extern int bar;
110 __attribute__((weak)) extern int weak_bar;
111 void foo(void);
112 
113 int baz = 42;
114 int *zed() {
115   foo();
116   return baz ? &weak_bar : &bar;
117 }
118 
119 extern __thread int thread_var;
120 __thread int local_thread_var = 42;
121 int *get_thread_var(int a) {
122   return a ? &thread_var : &local_thread_var;
123 }
124