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comparison gcc/testsuite/g++.dg/cpp0x/pr84497.C @ 131:84e7813d76e9

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gcc-8.2
author mir3636
date Thu, 25 Oct 2018 07:37:49 +0900
parents
children 1830386684a0
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111:04ced10e8804 131:84e7813d76e9
1 // PR 84497 mismatch with thread constructor fn weakness
2 // { dg-do compile { target c++11 } }
3 // { dg-require-weak "" }
4
5 struct Base
6 {
7 int m;
8
9 Base() noexcept = default; // trivial but not constexpr
10 ~Base() noexcept = default;
11 };
12
13 struct Derived : Base {};
14 struct Container {
15 Base m;
16 };
17
18 #ifdef DEF
19 // This bit for exposition only.
20 // All items placed in .tbss
21 // __tls_init simply sets __tls_guard
22 // no aliases to __tls_init generated
23 thread_local Base base_obj;
24 thread_local Derived derived_obj;
25 thread_local Container container_obj;
26 #else
27 // Erroneously created strong undef refs to
28 // _ZTH11derived_obj, _ZTH13container_obj, _ZTH8base_obj
29 extern thread_local Base base_obj;
30 extern thread_local Derived derived_obj;
31 extern thread_local Container container_obj;
32 int main() { return !(&base_obj && &derived_obj && &container_obj);}
33 #endif
34
35 // { dg-final { scan-assembler ".weak\[ \t\]*_ZTH8base_obj" } }
36 // { dg-final { scan-assembler ".weak\[ \t\]*_ZTH11derived_obj" } }
37 // { dg-final { scan-assembler ".weak\[ \t\]*_ZTH13container_obj" } }