1 // RUN: %clang_cc1 -triple x86_64-apple-darwin10 -emit-llvm -o - %s | FileCheck %s
3 // CHECK: @_ZN5test11A1aE = constant i32 10, align 4
4 // CHECK: @_ZN5test212_GLOBAL__N_11AIiE1xE = internal global i32 0, align 4
5 // CHECK: @_ZN5test31AIiE1xE = weak global i32 0, align 4
6 // CHECK: @_ZGVN5test31AIiE1xE = weak global i64 0
11 static const int a = 10;
25 // Test that we don't use guards for initializing template static data
26 // members with internal linkage.
31 template <class T> struct A {
35 template <class T> int A<T>::x = foo();
36 template struct A<int>;
39 // CHECK: define internal void @__cxx_global_var_init()
40 // CHECK: [[TMP:%.*]] = call i32 @_ZN5test23fooEv()
41 // CHECK-NEXT: store i32 [[TMP]], i32* @_ZN5test212_GLOBAL__N_11AIiE1xE, align 4
42 // CHECK-NEXT: ret void
45 // Test that we don't use threadsafe statics when initializing
46 // template static data members.
50 template <class T> struct A {
54 template <class T> int A<T>::x = foo();
55 template struct A<int>;
57 // CHECK: define internal void @__cxx_global_var_init1()
58 // CHECK: [[GUARDBYTE:%.*]] = load i8* bitcast (i64* @_ZGVN5test31AIiE1xE to i8*)
59 // CHECK-NEXT: [[UNINITIALIZED:%.*]] = icmp eq i8 [[GUARDBYTE]], 0
60 // CHECK-NEXT: br i1 [[UNINITIALIZED]]
61 // CHECK: [[TMP:%.*]] = call i32 @_ZN5test33fooEv()
62 // CHECK-NEXT: store i32 [[TMP]], i32* @_ZN5test31AIiE1xE, align 4
63 // CHECK-NEXT: store i64 1, i64* @_ZGVN5test31AIiE1xE
64 // CHECK-NEXT: br label