1 // RUN: %clang_cc1 %s -std=c++1y -triple=i686-pc-win32 -emit-llvm -o - | FileCheck %s 2 // RUN: %clang_cc1 %s -std=c++1y -triple=i686-pc-win32 -ftls-model=local-dynamic -emit-llvm -o - | FileCheck %s -check-prefix=CHECK-LD 3 4 struct A { 5 A(); 6 ~A(); 7 }; 8 9 // CHECK-DAG: $"??$a@X@@3UA@@A" = comdat any 10 // CHECK-DAG: @"??$a@X@@3UA@@A" = linkonce_odr dso_local thread_local global %struct.A zeroinitializer, comdat, align 1 11 // CHECK-DAG: @"??__E?$a@X@@YAXXZ$initializer$" = internal constant void ()* @"??__E?$a@X@@YAXXZ", section ".CRT$XDU", comdat($"??$a@X@@3UA@@A") 12 // CHECK-LD-DAG: $"??$a@X@@3UA@@A" = comdat any 13 // CHECK-LD-DAG: @"??$a@X@@3UA@@A" = linkonce_odr dso_local thread_local(localdynamic) global %struct.A zeroinitializer, comdat, align 1 14 // CHECK-LD-DAG: @"??__E?$a@X@@YAXXZ$initializer$" = internal constant void ()* @"??__E?$a@X@@YAXXZ", section ".CRT$XDU", comdat($"??$a@X@@3UA@@A") 15 template <typename T> 16 thread_local A a = A(); 17 18 // CHECK-DAG: @"?b@@3UA@@A" = dso_local thread_local global %struct.A zeroinitializer, align 1 19 // CHECK-DAG: @"__tls_init$initializer$" = internal constant void ()* @__tls_init, section ".CRT$XDU" 20 // CHECK-LD-DAG: @"?b@@3UA@@A" = dso_local thread_local(localdynamic) global %struct.A zeroinitializer, align 1 21 // CHECK-LD-DAG: @"__tls_init$initializer$" = internal constant void ()* @__tls_init, section ".CRT$XDU" 22 thread_local A b; 23 24 // CHECK-LABEL: define internal void @__tls_init() 25 // CHECK: call void @"??__Eb@@YAXXZ" 26 // CHECK-LD-LABEL: define internal void @__tls_init() 27 // CHECK-LD: call void @"??__Eb@@YAXXZ" 28 29 thread_local A &c = b; 30 thread_local A &d = c; 31 32 A f() { 33 (void)a<void>; 34 (void)b; 35 return c; 36 } 37 38 // CHECK: !llvm.linker.options = !{![[dyn_tls_init:[0-9]+]]} 39 // CHECK: ![[dyn_tls_init]] = !{!"/include:___dyn_tls_init@12"} 40 // CHECK-LD: !llvm.linker.options = !{![[dyn_tls_init:[0-9]+]]} 41 // CHECK-LD: ![[dyn_tls_init]] = !{!"/include:___dyn_tls_init@12"} 42