1 // RUN: %clang_cc1 -triple powerpc-ibm-aix-xcoff -S -emit-llvm -x c++ \
2 // RUN:     -std=c++2a < %s | \
3 // RUN:   FileCheck --check-prefixes=CHECK,CHECK32 %s
4 
5 // RUN: %clang_cc1 -triple powerpc64-ibm-aix-xcoff -S -emit-llvm -x c++ \
6 // RUN:     -std=c++2a < %s | \
7 // RUN:   FileCheck --check-prefixes=CHECK,CHECK64 %s
8 
9 namespace test1 {
10 struct Test1 {
11   Test1(int) {}
12   ~Test1() {}
13 };
14 
15 Test1 t0 = 2;
16 
17 template <typename T>
18 Test1 t1 = 2;
19 
20 inline Test1 t2 = 2;
21 
22 void foo() {
23   (void)&t1<int>;
24 }
25 } // namespace test1
26 
27 namespace test2 {
28 template <typename = void>
29 struct A {
30   A() {}
31   ~A() {}
32   static A instance;
33 };
34 
35 template <typename T>
36 A<T> A<T>::instance;
37 template A<> A<>::instance;
38 
39 A<int> &bar() {
40   A<int> *a = new A<int>;
41   return *a;
42 }
43 template <>
44 A<int> A<int>::instance = bar();
45 } // namespace test2
46 
47 // CHECK: @_ZGVN5test12t2E = linkonce_odr global i64 0, align 8
48 // CHECK: @_ZGVN5test21AIvE8instanceE = weak_odr global i64 0, align 8
49 // CHECK: @_ZGVN5test12t1IiEE = linkonce_odr global i64 0, align 8
50 // CHECK: @llvm.global_ctors = appending global [4 x { i32, void ()*, i8* }] [{ i32, void ()*, i8* } { i32 65535, void ()* @__cxx_global_var_init.1, i8* null }, { i32, void ()*, i8* } { i32 65535, void ()* @__cxx_global_var_init.2, i8* null }, { i32, void ()*, i8* } { i32 65535, void ()* @__cxx_global_var_init.4, i8* null }, { i32, void ()*, i8* } { i32 65535, void ()* @_GLOBAL__sub_I__, i8* null }]
51 // CHECK: @llvm.global_dtors = appending global [4 x { i32, void ()*, i8* }] [{ i32, void ()*, i8* } { i32 65535, void ()* @__finalize__ZN5test12t2E, i8* null }, { i32, void ()*, i8* } { i32 65535, void ()* @__finalize__ZN5test21AIvE8instanceE, i8* null }, { i32, void ()*, i8* } { i32 65535, void ()* @__finalize__ZN5test12t1IiEE, i8* null }, { i32, void ()*, i8* } { i32 65535, void ()* @_GLOBAL__D_a, i8* null }]
52 
53 // CHECK: define internal void @__cxx_global_var_init() [[ATTR:#[0-9]+]] {
54 // CHECK: entry:
55 // CHECK32: call void @_ZN5test15Test1C1Ei(%"struct.test1::Test1"* noundef{{[^,]*}} @_ZN5test12t0E, i32 noundef 2)
56 // CHECK64: call void @_ZN5test15Test1C1Ei(%"struct.test1::Test1"* noundef{{[^,]*}} @_ZN5test12t0E, i32 noundef signext 2)
57 // CHECK:   %0 = call i32 @atexit(void ()* @__dtor__ZN5test12t0E)
58 // CHECK:   ret void
59 // CHECK: }
60 
61 // CHECK: define internal void @__dtor__ZN5test12t0E() [[ATTR:#[0-9]+]] {
62 // CHECK: entry:
63 // CHECK:   call void @_ZN5test15Test1D1Ev(%"struct.test1::Test1"* @_ZN5test12t0E)
64 // CHECK:   ret void
65 // CHECK: }
66 
67 // CHECK: define internal void @__finalize__ZN5test12t0E() [[ATTR:#[0-9]+]] {
68 // CHECK: entry:
69 // CHECK:   %0 = call i32 @unatexit(void ()* @__dtor__ZN5test12t0E)
70 // CHECK:   %needs_destruct = icmp eq i32 %0, 0
71 // CHECK:   br i1 %needs_destruct, label %destruct.call, label %destruct.end
72 
73 // CHECK: destruct.call:
74 // CHECK:   call void @__dtor__ZN5test12t0E()
75 // CHECK:   br label %destruct.end
76 
77 // CHECK: destruct.end:
78 // CHECK:   ret void
79 // CHECK: }
80 
81 // CHECK: define internal void @__cxx_global_var_init.1() [[ATTR:#[0-9]+]] {
82 // CHECK: entry:
83 // CHECK:   %0 = load atomic i8, i8* bitcast (i64* @_ZGVN5test12t2E to i8*) acquire, align 8
84 // CHECK:   %guard.uninitialized = icmp eq i8 %0, 0
85 // CHECK:   br i1 %guard.uninitialized, label %init.check, label %init.end
86 
87 // CHECK: init.check:
88 // CHECK:   %1 = call i32 @__cxa_guard_acquire(i64* @_ZGVN5test12t2E)
89 // CHECK:   %tobool = icmp ne i32 %1, 0
90 // CHECK:   br i1 %tobool, label %init, label %init.end
91 
92 // CHECK: init:
93 // CHECK32: call void @_ZN5test15Test1C1Ei(%"struct.test1::Test1"* noundef{{[^,]*}} @_ZN5test12t2E, i32 noundef 2)
94 // CHECK64: call void @_ZN5test15Test1C1Ei(%"struct.test1::Test1"* noundef{{[^,]*}} @_ZN5test12t2E, i32 noundef signext 2)
95 // CHECK:   %2 = call i32 @atexit(void ()* @__dtor__ZN5test12t2E)
96 // CHECK:   call void @__cxa_guard_release(i64* @_ZGVN5test12t2E)
97 // CHECK:   br label %init.end
98 
99 // CHECK: init.end:
100 // CHECK:   ret void
101 // CHECK: }
102 
103 // CHECK: define internal void @__dtor__ZN5test12t2E() [[ATTR:#[0-9]+]] {
104 // CHECK: entry:
105 // CHECK:   call void @_ZN5test15Test1D1Ev(%"struct.test1::Test1"* @_ZN5test12t2E)
106 // CHECK:   ret void
107 // CHECK: }
108 
109 // CHECK: define internal void @__finalize__ZN5test12t2E() [[ATTR:#[0-9]+]] {
110 // CHECK: entry:
111 // CHECK:   %0 = call i32 @unatexit(void ()* @__dtor__ZN5test12t2E)
112 // CHECK:   %needs_destruct = icmp eq i32 %0, 0
113 // CHECK:   br i1 %needs_destruct, label %destruct.call, label %destruct.end
114 
115 // CHECK: destruct.call:
116 // CHECK:   call void @__dtor__ZN5test12t2E()
117 // CHECK:   br label %destruct.end
118 
119 // CHECK: destruct.end:
120 // CHECK:   ret void
121 // CHECK: }
122 
123 // CHECK: define internal void @__cxx_global_var_init.2() [[ATTR:#[0-9]+]] {
124 // CHECK: entry:
125 // CHECK:   %0 = load i8, i8* bitcast (i64* @_ZGVN5test21AIvE8instanceE to i8*), align 8
126 // CHECK:   %guard.uninitialized = icmp eq i8 %0, 0
127 // CHECK:   br i1 %guard.uninitialized, label %init.check, label %init.end
128 
129 // CHECK: init.check:
130 // CHECK:   call void @_ZN5test21AIvEC1Ev(%"struct.test2::A"* {{[^,]*}} @_ZN5test21AIvE8instanceE)
131 // CHECK:   %1 = call i32 @atexit(void ()* @__dtor__ZN5test21AIvE8instanceE)
132 // CHECK:   store i8 1, i8* bitcast (i64* @_ZGVN5test21AIvE8instanceE to i8*), align 8
133 // CHECK:   br label %init.end
134 
135 // CHECK: init.end:
136 // CHECK:   ret void
137 // CHECK: }
138 
139 // CHECK: define internal void @__dtor__ZN5test21AIvE8instanceE() [[ATTR:#[0-9]+]] {
140 // CHECK: entry:
141 // CHECK:   call void @_ZN5test21AIvED1Ev(%"struct.test2::A"* @_ZN5test21AIvE8instanceE)
142 // CHECK:   ret void
143 // CHECK: }
144 
145 // CHECK: define internal void @__finalize__ZN5test21AIvE8instanceE() [[ATTR:#[0-9]+]] {
146 // CHECK: entry:
147 // CHECK:   %0 = call i32 @unatexit(void ()* @__dtor__ZN5test21AIvE8instanceE)
148 // CHECK:   %needs_destruct = icmp eq i32 %0, 0
149 // CHECK:   br i1 %needs_destruct, label %destruct.call, label %destruct.end
150 
151 // CHECK: destruct.call:
152 // CHECK:   call void @__dtor__ZN5test21AIvE8instanceE()
153 // CHECK:   br label %destruct.end
154 
155 // CHECK: destruct.end:
156 // CHECK:   ret void
157 // CHECK: }
158 
159 // CHECK: define internal void @__cxx_global_var_init.3() [[ATTR:#[0-9]+]] {
160 // CHECK: entry:
161 // CHECK:   %call = call noundef nonnull align 1 dereferenceable(1) %"struct.test2::A.0"* @_ZN5test23barEv()
162 // CHECK:   %0 = call i32 @atexit(void ()* @__dtor__ZN5test21AIiE8instanceE)
163 // CHECK:   ret void
164 // CHECK: }
165 
166 // CHECK: define internal void @__dtor__ZN5test21AIiE8instanceE() [[ATTR:#[0-9]+]] {
167 // CHECK: entry:
168 // CHECK:   call void @_ZN5test21AIiED1Ev(%"struct.test2::A.0"* @_ZN5test21AIiE8instanceE)
169 // CHECK:   ret void
170 // CHECK: }
171 
172 // CHECK: define internal void @__finalize__ZN5test21AIiE8instanceE() [[ATTR:#[0-9]+]] {
173 // CHECK: entry:
174 // CHECK:   %0 = call i32 @unatexit(void ()* @__dtor__ZN5test21AIiE8instanceE)
175 // CHECK:   %needs_destruct = icmp eq i32 %0, 0
176 // CHECK:   br i1 %needs_destruct, label %destruct.call, label %destruct.end
177 
178 // CHECK: destruct.call:
179 // CHECK:   call void @__dtor__ZN5test21AIiE8instanceE()
180 // CHECK:   br label %destruct.end
181 
182 // CHECK: destruct.end:
183 // CHECK:   ret void
184 // CHECK: }
185 
186 // CHECK: define internal void @__cxx_global_var_init.4() [[ATTR:#[0-9]+]] {
187 // CHECK: entry:
188 // CHECK:   %0 = load i8, i8* bitcast (i64* @_ZGVN5test12t1IiEE to i8*), align 8
189 // CHECK:   %guard.uninitialized = icmp eq i8 %0, 0
190 // CHECK:   br i1 %guard.uninitialized, label %init.check, label %init.end
191 
192 // CHECK: init.check:
193 // CHECK32: call void @_ZN5test15Test1C1Ei(%"struct.test1::Test1"* {{[^,]*}} @_ZN5test12t1IiEE, i32 noundef 2)
194 // CHECK64: call void @_ZN5test15Test1C1Ei(%"struct.test1::Test1"* {{[^,]*}} @_ZN5test12t1IiEE, i32 noundef signext 2)
195 // CHECK:   %1 = call i32 @atexit(void ()* @__dtor__ZN5test12t1IiEE)
196 // CHECK:   store i8 1, i8* bitcast (i64* @_ZGVN5test12t1IiEE to i8*), align 8
197 // CHECK:   br label %init.end
198 
199 // CHECK: init.end:
200 // CHECK:   ret void
201 // CHECK: }
202 
203 // CHECK: define internal void @__dtor__ZN5test12t1IiEE() [[ATTR:#[0-9]+]] {
204 // CHECK: entry:
205 // CHECK:   call void @_ZN5test15Test1D1Ev(%"struct.test1::Test1"* @_ZN5test12t1IiEE)
206 // CHECK:   ret void
207 // CHECK: }
208 
209 // CHECK: define internal void @__finalize__ZN5test12t1IiEE() [[ATTR:#[0-9]+]] {
210 // CHECK: entry:
211 // CHECK:   %0 = call i32 @unatexit(void ()* @__dtor__ZN5test12t1IiEE)
212 // CHECK:   %needs_destruct = icmp eq i32 %0, 0
213 // CHECK:   br i1 %needs_destruct, label %destruct.call, label %destruct.end
214 
215 // CHECK: destruct.call:
216 // CHECK:   call void @__dtor__ZN5test12t1IiEE()
217 // CHECK:   br label %destruct.end
218 
219 // CHECK: destruct.end:
220 // CHECK:   ret void
221 // CHECK: }
222 
223 // CHECK: define internal void @_GLOBAL__sub_I__() [[ATTR:#[0-9]+]] {
224 // CHECK: entry:
225 // CHECK:   call void @__cxx_global_var_init()
226 // CHECK:   call void @__cxx_global_var_init.3()
227 // CHECK:   ret void
228 // CHECK: }
229 
230 // CHECK: define internal void @_GLOBAL__D_a() [[ATTR:#[0-9]+]] {
231 // CHECK: entry:
232 // CHECK:   call void @__finalize__ZN5test21AIiE8instanceE()
233 // CHECK:   call void @__finalize__ZN5test12t0E()
234 // CHECK:   ret void
235 // CHECK: }
236