blob: 64fca2eb6837de7b89764d4ae7749c0211c00836 [file] [log] [blame]
// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -emit-llvm -o - %s | FileCheck %s
// CHECK: @_ZN5test11A1aE = constant i32 10, align 4
// CHECK: @_ZN5test212_GLOBAL__N_11AIiE1xE = internal global i32 0, align 4
// CHECK: @_ZN5test31AIiE1xE = weak global i32 0, align 4
// CHECK: @_ZGVN5test31AIiE1xE = weak global i64 0
// PR5564.
namespace test1 {
struct A {
static const int a = 10;
};
const int A::a;
struct S {
static int i;
};
void f() {
int a = S::i;
}
}
// Test that we don't use guards for initializing template static data
// members with internal linkage.
namespace test2 {
int foo();
namespace {
template <class T> struct A {
static int x;
};
template <class T> int A<T>::x = foo();
template struct A<int>;
}
// CHECK: define internal void @__cxx_global_var_init()
// CHECK: [[TMP:%.*]] = call i32 @_ZN5test23fooEv()
// CHECK-NEXT: store i32 [[TMP]], i32* @_ZN5test212_GLOBAL__N_11AIiE1xE, align 4
// CHECK-NEXT: ret void
}
// Test that we don't use threadsafe statics when initializing
// template static data members.
namespace test3 {
int foo();
template <class T> struct A {
static int x;
};
template <class T> int A<T>::x = foo();
template struct A<int>;
// CHECK: define internal void @__cxx_global_var_init1()
// CHECK: [[GUARDBYTE:%.*]] = load i8* bitcast (i64* @_ZGVN5test31AIiE1xE to i8*)
// CHECK-NEXT: [[UNINITIALIZED:%.*]] = icmp eq i8 [[GUARDBYTE]], 0
// CHECK-NEXT: br i1 [[UNINITIALIZED]]
// CHECK: [[TMP:%.*]] = call i32 @_ZN5test33fooEv()
// CHECK-NEXT: store i32 [[TMP]], i32* @_ZN5test31AIiE1xE, align 4
// CHECK-NEXT: store i64 1, i64* @_ZGVN5test31AIiE1xE
// CHECK-NEXT: br label
// CHECK: ret void
}