зеркало из https://github.com/microsoft/clang.git
67 строки
1.7 KiB
C++
67 строки
1.7 KiB
C++
// 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_odr global i32 0, align 4
|
|
// CHECK: @_ZGVN5test31AIiE1xE = weak_odr 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
|
|
}
|