1 // REQUIRES: x86-registered-target
2
3 // Test that -fvisibility-from-dllstorageclass maps DLL storage class to visibility
4 // and that it overrides the effect of visibility options and annotations.
5
6 // RUN: %clang_cc1 -triple x86_64-unknown-windows-itanium -fdeclspec \
7 // RUN: -fvisibility hidden \
8 // RUN: -fapply-global-visibility-to-externs \
9 // RUN: -fvisibility-from-dllstorageclass \
10 // RUN: -x c++ %s -S -emit-llvm -o - | \
11 // RUN: FileCheck %s --check-prefixes=DEFAULTS
12
13 // RUN: %clang_cc1 -triple x86_64-unknown-windows-itanium -fdeclspec \
14 // RUN: -fvisibility hidden \
15 // RUN: -fapply-global-visibility-to-externs \
16 // RUN: -fvisibility-from-dllstorageclass \
17 // RUN: -fvisibility-dllexport=hidden \
18 // RUN: -fvisibility-nodllstorageclass=protected \
19 // RUN: -fvisibility-externs-dllimport=hidden \
20 // RUN: -fvisibility-externs-nodllstorageclass=protected \
21 // RUN: -x c++ %s -S -emit-llvm -o - | \
22 // RUN: FileCheck %s --check-prefixes=EXPLICIT
23
24 // RUN: %clang_cc1 -triple x86_64-unknown-windows-itanium -fdeclspec \
25 // RUN: -fvisibility hidden \
26 // RUN: -fapply-global-visibility-to-externs \
27 // RUN: -fvisibility-from-dllstorageclass \
28 // RUN: -fvisibility-dllexport=default \
29 // RUN: -fvisibility-nodllstorageclass=default \
30 // RUN: -fvisibility-externs-dllimport=default \
31 // RUN: -fvisibility-externs-nodllstorageclass=default \
32 // RUN: -x c++ %s -S -emit-llvm -o - | \
33 // RUN: FileCheck %s --check-prefixes=ALL_DEFAULT
34
35 // Local
l()36 static void l() {}
use_locals()37 void use_locals(){l();}
38 // DEFAULTS-DAG: define internal void @_ZL1lv()
39 // EXPLICIT-DAG: define internal void @_ZL1lv()
40 // ALL_DEFAULT-DAG: define internal void @_ZL1lv()
41
42 // Function
f()43 void f() {}
exported_f()44 void __declspec(dllexport) exported_f() {}
45 // DEFAULTS-DAG: define hidden void @_Z1fv()
46 // DEFAULTS-DAG: define void @_Z10exported_fv()
47 // EXPLICIT-DAG: define protected void @_Z1fv()
48 // EXPLICIT-DAG: define hidden void @_Z10exported_fv()
49 // ALL_DEFAULT-DAG: define void @_Z1fv()
50 // ALL_DEFAULT-DAG: define void @_Z10exported_fv()
51
52 // Variable
53 int d = 123;
54 __declspec(dllexport) int exported_d = 123;
55 // DEFAULTS-DAG: @d = hidden global
56 // DEFAULTS-DAG: @exported_d = global
57 // EXPLICIT-DAG: @d = protected global
58 // EXPLICIT-DAG: @exported_d = hidden global
59 // ALL_DEFAULT-DAG: @d = global
60 // ALL_DEFAULT-DAG: @exported_d = global
61
62 // Alias
aliased()63 extern "C" void aliased() {}
64 void a() __attribute__((alias("aliased")));
65 void __declspec(dllexport) a_exported() __attribute__((alias("aliased")));
66 // DEFAULTS-DAG: @_Z1av = hidden alias
67 // DEFAULTS-DAG: @_Z10a_exportedv = alias
68 // EXPLICIT-DAG: @_Z1av = protected alias
69 // EXPLICIT-DAG: @_Z10a_exportedv = hidden alias
70 // ALL_DEFAULT-DAG: @_Z1av = alias
71 // ALL_DEFAULT-DAG: @_Z10a_exportedv = alias
72
73 // Declaration
74 extern void e();
75 extern void __declspec(dllimport) imported_e();
76 // DEFAULTS-DAG: declare hidden void @_Z1ev()
77 // DEFAULTS-DAG: declare void @_Z10imported_ev()
78 // EXPLICIT-DAG: declare protected void @_Z1ev()
79 // EXPLICIT-DAG: declare hidden void @_Z10imported_ev()
80 // ALL_DEFAULT-DAG: declare void @_Z1ev()
81 // ALL_DEFAULT-DAG: declare void @_Z10imported_ev()
82
83 // Weak Declaration
84 __attribute__((weak))
85 extern void w();
86 __attribute__((weak))
87 extern void __declspec(dllimport) imported_w();
88 // DEFAULTS-DAG: declare extern_weak hidden void @_Z1wv()
89 // DEFAULTS-DAG: declare extern_weak void @_Z10imported_wv()
90 // EXPLICIT-DAG: declare extern_weak protected void @_Z1wv()
91 // EXPLICIT-DAG: declare extern_weak hidden void @_Z10imported_wv()
92 // ALL_DEFAULT-DAG: declare extern_weak void @_Z1wv()
93 // ALL_DEFAULT-DAG: declare extern_weak void @_Z10imported_wv()
94
use_declarations()95 void use_declarations(){e(); imported_e(); w(); imported_w();}
96
97 // Show that -fvisibility-from-dllstorageclass overrides the effect of visibility annotations.
98
99 struct __attribute__((type_visibility("protected"))) t {
100 virtual void foo();
101 };
foo()102 void t::foo() {}
103 // DEFAULTS-DAG: @_ZTV1t = hidden unnamed_addr constant
104
105 int v __attribute__ ((__visibility__ ("protected"))) = 123;
106 // DEFAULTS-DAG: @v = hidden global
107
108 #pragma GCC visibility push(protected)
109 int p = 345;
110 #pragma GCC visibility pop
111 // DEFAULTS-DAG: @p = hidden global
112