32 lines
970 B
C++
32 lines
970 B
C++
|
// RUN: %clang_cc1 %s -emit-llvm -o - | FileCheck %s
|
||
|
|
|
||
|
|
template <typename T>
|
||
|
|
struct HasStaticInit {
|
||
|
|
static const int index;
|
||
|
|
};
|
||
|
|
extern "C"
|
||
|
|
int the_count = 0;
|
||
|
|
template <typename T>
|
||
|
|
const int HasStaticInit<T>::index = the_count++;
|
||
|
|
|
||
|
|
template <typename T> int func_tmpl1() { return HasStaticInit<T>::index; }
|
||
|
|
template <typename T> int func_tmpl2() { return HasStaticInit<T>::index; }
|
||
|
|
template <typename T> int func_tmpl3() { return HasStaticInit<T>::index; }
|
||
|
|
void useit() {
|
||
|
|
func_tmpl1<int>();
|
||
|
|
func_tmpl2<int>();
|
||
|
|
func_tmpl3<int>();
|
||
|
|
}
|
||
|
|
|
||
|
|
// Throw in a final explicit instantiation to see that it doesn't screw things
|
||
|
|
// up.
|
||
|
|
template struct HasStaticInit<int>;
|
||
|
|
|
||
|
|
// There should only be one entry, not 3.
|
||
|
|
// CHECK: @llvm.global_ctors = appending global [1 x { i32, void ()*, i8* }]
|
||
|
|
|
||
|
|
// There should only be one update to @the_count.
|
||
|
|
// CHECK-NOT: store i32 %{{.*}}, i32* @the_count
|
||
|
|
// CHECK: store i32 %{{.*}}, i32* @the_count
|
||
|
|
// CHECK-NOT: store i32 %{{.*}}, i32* @the_count
|