1 | // RUN: %clang_cc1 %s -triple=x86_64-pc-linuxs -emit-llvm -std=c++98 -o - | FileCheck -check-prefix=CHECK -check-prefix=CHECK98 %s |
2 | // RUN: %clang_cc1 %s -triple=x86_64-pc-linuxs -emit-llvm -std=c++11 -o - | FileCheck -check-prefix=CHECK -check-prefix=CHECK11 %s |
3 | |
4 | // CHECK: @_ZZ1hvE1i = internal global i32 0, align 4 |
5 | // CHECK: @base_req = global [4 x i8] c"foo\00", align 1 |
6 | // CHECK: @base_req_uchar = global [4 x i8] c"bar\00", align 1 |
7 | |
8 | // CHECK: @_ZZN5test31BC1EvE1u = internal global { i8, [3 x i8] } { i8 97, [3 x i8] undef }, align 4 |
9 | |
10 | // CHECK: @_ZZ2h2vE1i = linkonce_odr global i32 0, comdat, align 4 |
11 | // CHECK: @_ZGVZ2h2vE1i = linkonce_odr global i64 0, comdat, align 8{{$}} |
12 | // CHECK: @_ZZN5test1L6getvarEiE3var = internal constant [4 x i32] [i32 1, i32 0, i32 2, i32 4], align 16 |
13 | // CHECK98: @_ZZN5test414useStaticLocalEvE3obj = linkonce_odr global %"struct.test4::HasVTable" zeroinitializer, comdat, align 8 |
14 | // CHECK11: @_ZZN5test414useStaticLocalEvE3obj = linkonce_odr global { i8** } { i8** getelementptr inbounds ({ [3 x i8*] }, { [3 x i8*] }* @_ZTVN5test49HasVTableE, i32 0, inrange i32 0, i32 2) }, comdat, align 8 |
15 | |
16 | struct A { |
17 | A(); |
18 | ~A(); |
19 | }; |
20 | |
21 | void f() { |
22 | // CHECK: load atomic i8, i8* bitcast (i64* @_ZGVZ1fvE1a to i8*) acquire, align 8 |
23 | // CHECK: call i32 @__cxa_guard_acquire |
24 | // CHECK: call void @_ZN1AC1Ev |
25 | // CHECK: call i32 @__cxa_atexit(void (i8*)* bitcast (void (%struct.A*)* @_ZN1AD1Ev to void (i8*)*), i8* getelementptr inbounds (%struct.A, %struct.A* @_ZZ1fvE1a, i32 0, i32 0), i8* @__dso_handle) |
26 | // CHECK: call void @__cxa_guard_release |
27 | static A a; |
28 | } |
29 | |
30 | void g() { |
31 | // CHECK: call i8* @_Znwm(i64 1) |
32 | // CHECK: call void @_ZN1AC1Ev( |
33 | static A& a = *new A; |
34 | } |
35 | |
36 | int a(); |
37 | void h() { |
38 | static const int i = a(); |
39 | } |
40 | |
41 | // CHECK: define linkonce_odr void @_Z2h2v() {{.*}} comdat { |
42 | inline void h2() { |
43 | static int i = a(); |
44 | } |
45 | |
46 | void h3() { |
47 | h2(); |
48 | } |
49 | |
50 | // PR6980: this shouldn't crash |
51 | namespace test0 { |
52 | struct A { A(); }; |
53 | __attribute__((noreturn)) int throw_exception(); |
54 | |
55 | void test() { |
56 | throw_exception(); |
57 | static A r; |
58 | } |
59 | } |
60 | |
61 | namespace test1 { |
62 | // CHECK-LABEL: define internal i32 @_ZN5test1L6getvarEi( |
63 | static inline int getvar(int index) { |
64 | static const int var[] = { 1, 0, 2, 4 }; |
65 | return var[index]; |
66 | } |
67 | |
68 | void test() { (void) getvar(2); } |
69 | } |
70 | |
71 | // Make sure we emit the initializer correctly for the following: |
72 | char base_req[] = { "foo" }; |
73 | unsigned char base_req_uchar[] = { "bar" }; |
74 | |
75 | namespace union_static_local { |
76 | // CHECK-LABEL: define internal void @_ZZN18union_static_local4testEvEN1c4mainEv |
77 | // CHECK: call void @_ZN18union_static_local1fEPNS_1xE(%"union.union_static_local::x"* bitcast ({ [2 x i8*] }* @_ZZN18union_static_local4testEvE3foo to %"union.union_static_local::x"*)) |
78 | union x { long double y; const char *x[2]; }; |
79 | void f(union x*); |
80 | void test() { |
81 | static union x foo = { .x = { "a", "b" } }; |
82 | struct c { |
83 | static void main() { |
84 | f(&foo); |
85 | } |
86 | }; |
87 | c::main(); |
88 | } |
89 | } |
90 | |
91 | // rdar://problem/11091093 |
92 | // Static variables should be consistent across constructor |
93 | // or destructor variants. |
94 | namespace test2 { |
95 | struct A { |
96 | A(); |
97 | ~A(); |
98 | }; |
99 | |
100 | struct B : virtual A { |
101 | B(); |
102 | ~B(); |
103 | }; |
104 | |
105 | // If we ever implement this as a delegate ctor call, just change |
106 | // this to take variadic arguments or something. |
107 | extern int foo(); |
108 | B::B() { |
109 | static int x = foo(); |
110 | } |
111 | // CHECK-LABEL: define void @_ZN5test21BC2Ev |
112 | // CHECK: load atomic i8, i8* bitcast (i64* @_ZGVZN5test21BC1EvE1x to i8*) acquire, |
113 | // CHECK: call i32 @__cxa_guard_acquire(i64* @_ZGVZN5test21BC1EvE1x) |
114 | // CHECK: [[T0:%.*]] = call i32 @_ZN5test23fooEv() |
115 | // CHECK: store i32 [[T0]], i32* @_ZZN5test21BC1EvE1x, |
116 | // CHECK: call void @__cxa_guard_release(i64* @_ZGVZN5test21BC1EvE1x) |
117 | |
118 | // CHECK-LABEL: define void @_ZN5test21BC1Ev |
119 | // CHECK: load atomic i8, i8* bitcast (i64* @_ZGVZN5test21BC1EvE1x to i8*) acquire, |
120 | // CHECK: call i32 @__cxa_guard_acquire(i64* @_ZGVZN5test21BC1EvE1x) |
121 | // CHECK: [[T0:%.*]] = call i32 @_ZN5test23fooEv() |
122 | // CHECK: store i32 [[T0]], i32* @_ZZN5test21BC1EvE1x, |
123 | // CHECK: call void @__cxa_guard_release(i64* @_ZGVZN5test21BC1EvE1x) |
124 | |
125 | // This is just for completeness, because we actually emit this |
126 | // using a delegate dtor call. |
127 | B::~B() { |
128 | static int y = foo(); |
129 | } |
130 | // CHECK-LABEL: define void @_ZN5test21BD2Ev( |
131 | // CHECK: load atomic i8, i8* bitcast (i64* @_ZGVZN5test21BD1EvE1y to i8*) acquire, |
132 | // CHECK: call i32 @__cxa_guard_acquire(i64* @_ZGVZN5test21BD1EvE1y) |
133 | // CHECK: [[T0:%.*]] = call i32 @_ZN5test23fooEv() |
134 | // CHECK: store i32 [[T0]], i32* @_ZZN5test21BD1EvE1y, |
135 | // CHECK: call void @__cxa_guard_release(i64* @_ZGVZN5test21BD1EvE1y) |
136 | |
137 | // CHECK-LABEL: define void @_ZN5test21BD1Ev( |
138 | // CHECK: call void @_ZN5test21BD2Ev( |
139 | } |
140 | |
141 | // This shouldn't error out. |
142 | namespace test3 { |
143 | struct A { |
144 | A(); |
145 | ~A(); |
146 | }; |
147 | |
148 | struct B : virtual A { |
149 | B(); |
150 | ~B(); |
151 | }; |
152 | |
153 | B::B() { |
154 | union U { char x; int i; }; |
155 | static U u = { 'a' }; |
156 | } |
157 | // CHECK-LABEL: define void @_ZN5test31BC2Ev( |
158 | // CHECK-LABEL: define void @_ZN5test31BC1Ev( |
159 | } |
160 | |
161 | // We forgot to set the comdat when replacing the global with a different type. |
162 | namespace test4 { |
163 | struct HasVTable { |
164 | virtual void f(); |
165 | }; |
166 | inline HasVTable &useStaticLocal() { |
167 | static HasVTable obj; |
168 | return obj; |
169 | } |
170 | void useit() { |
171 | useStaticLocal(); |
172 | } |
173 | // CHECK: define linkonce_odr dereferenceable(8) %"struct.test4::HasVTable"* @_ZN5test414useStaticLocalEv() |
174 | // CHECK: ret %"struct.test4::HasVTable"*{{.*}} @_ZZN5test414useStaticLocalEvE3obj |
175 | } |
176 | |