| // RUN: %clang_cc1 -std=c++11 -emit-llvm %s -o - -triple x86_64-linux-gnu | FileCheck %s |
| |
| // PR48030 |
| |
| template<typename T> struct TLS { static thread_local T *mData; }; |
| inline decltype(nullptr) non_constant_initializer() { return nullptr; } |
| template<typename T> thread_local T *TLS<T>::mData = non_constant_initializer(); |
| struct S {}; |
| S *current() { return TLS<S>::mData; }; |
| |
| // CHECK-DAG: @_ZN3TLSI1SE5mDataE = linkonce_odr thread_local global {{.*}}, comdat, |
| // CHECK-DAG: @_ZGVN3TLSI1SE5mDataE = linkonce_odr thread_local global {{.*}}, comdat($_ZN3TLSI1SE5mDataE), |
| // CHECK-DAG: @_ZTHN3TLSI1SE5mDataE = linkonce_odr alias {{.*}} @__cxx_global_var_init |
| |
| // CHECK-LABEL: define {{.*}} @_Z7currentv() |
| // CHECK: call {{.*}} @_ZTWN3TLSI1SE5mDataE() |
| |
| // CHECK-LABEL: define weak_odr hidden {{.*}} @_ZTWN3TLSI1SE5mDataE() {{.*}} comdat { |
| // CHECK: call void @_ZTHN3TLSI1SE5mDataE() |
| // CHECK: [[TLSmData_ADDR:%[^ ]+]] = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 @_ZN3TLSI1SE5mDataE) |
| // CHECK: ret {{.*}} [[TLSmData_ADDR]] |
| |
| // Unlike for a global, the global initialization function must not be in a |
| // COMDAT with the variable, because it is referenced from the _ZTH function |
| // which is outside that COMDAT. |
| // |
| // CHECK-NOT: define {{.*}} @__cxx_global_var_init{{.*}}comdat |
