clang/test/CodeGenCXX/pr18635.cpp

   1 // RUN: %clang_cc1 -emit-llvm -std=c++11 -triple x86_64-pc-linux-gnu -o- %s | FileCheck %s
   2
   3 // Global @x:
   4 // CHECK: [[X_GLOBAL:@[^ ]+]]{{.*}}thread_local global
   5
   6 // returned somewhere in TLS wrapper:
   7 // CHECK: define {{.+}} ptr @_ZTW1x(
   8 // CHECK: [[X_GLOBAL_ADDR:%[^ ]+]] = call align 8 ptr @llvm.threadlocal.address.p0(ptr align 8 [[X_GLOBAL]])
   9 // CHECK: ret{{.*}}[[X_GLOBAL_ADDR]]
  10
  11 template <typename T> class unique_ptr {
  12   template <typename F, typename S> struct pair {
  13     F first;
  14     S second;
  15   };
  16   pair<T *, int> data;
  17 public:
  18   constexpr unique_ptr() noexcept : data() {}
  19   explicit unique_ptr(T *p) noexcept : data() {}
  20 };
  21
  22 thread_local unique_ptr<int> x;
  23 int main() { x = unique_ptr<int>(new int(5)); }