1 // RUN: %clang_cc1 -std=c++1z %s -emit-llvm -o - -triple x86_64-linux-gnu | FileCheck %s 2 3 struct Q { 4 // CHECK: @_ZN1Q1kE = linkonce_odr constant i32 5, comdat 5 static constexpr int k = 5; 6 }; 7 const int &r = Q::k; 8 9 int f(); 10 11 // const does not imply internal linkage. 12 // CHECK: @external_inline = linkonce_odr constant i32 5, comdat 13 inline const int external_inline = 5; 14 const int &use1 = external_inline; 15 16 // static still does, though. 17 // CHECK: @_ZL15internal_inline = internal constant i32 5 18 static inline const int internal_inline = 5; 19 const int &use2 = internal_inline; 20 21 int a = f(); 22 // CHECK: @b = linkonce_odr global i32 0, comdat 23 // CHECK: @_ZGV1b = linkonce_odr global i64 0, comdat($b) 24 inline int b = f(); 25 int c = f(); 26 27 template<typename T> struct X { 28 static int a; 29 static inline int b; 30 static int c; 31 }; 32 // CHECK: @_ZN1XIiE1aE = linkonce_odr global i32 10 33 // CHECK: @_ZN1XIiE1bE = global i32 20 34 // CHECK-NOT: @_ZN1XIiE1cE 35 template<> inline int X<int>::a = 10; 36 int &use3 = X<int>::a; 37 template<> int X<int>::b = 20; 38 template<> inline int X<int>::c = 30; 39 40 // CHECK-LABEL: define {{.*}}global_var_init 41 // CHECK: call i32 @_Z1fv 42 43 // CHECK-LABEL: define {{.*}}global_var_init 44 // CHECK-NOT: comdat 45 // CHECK-SAME: {{$}} 46 // CHECK: load atomic {{.*}} acquire 47 // CHECK: br 48 // CHECK: __cxa_guard_acquire(i64* @_ZGV1b) 49 // CHECK: br 50 // CHECK: call i32 @_Z1fv 51 // CHECK: __cxa_guard_release(i64* @_ZGV1b) 52 53 // CHECK-LABEL: define {{.*}}global_var_init 54 // CHECK: call i32 @_Z1fv 55 56 template<typename T> inline int d = f(); 57 int e = d<int>; 58 59 // CHECK-LABEL: define {{.*}}global_var_init{{.*}}comdat 60 // CHECK: _ZGV1dIiE 61 // CHECK-NOT: __cxa_guard_acquire(i64* @_ZGV1b) 62 // CHECK: call i32 @_Z1fv 63 // CHECK-NOT: __cxa_guard_release(i64* @_ZGV1b) 64