// RUN: %clang_cc1 -std=c++11 -emit-llvm %s -o - -triple x86_64-linux-gnu | FileCheck %s // PR48030 template struct TLS { static thread_local T *mData; }; inline decltype(nullptr) non_constant_initializer() { return nullptr; } template thread_local T *TLS::mData = non_constant_initializer(); struct S {}; S *current() { return TLS::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