93 lines
2.7 KiB
C++
93 lines
2.7 KiB
C++
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// RUN: %clang_cc1 %s -triple=i686-pc-win32 -fms-extensions -emit-llvm -o - | FileCheck %s
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// RUN: %clang_cc1 %s -triple=x86_64-pc-win32 -fms-extensions -emit-llvm -o - | FileCheck %s
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// RUN: %clang_cc1 %s -triple=i686-pc-windows-msvc -fms-extensions -emit-llvm -o - | FileCheck %s
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// RUN: %clang_cc1 %s -triple=x86_64-pc-windows-msvc -fms-extensions -emit-llvm -o - | FileCheck %s
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struct S {
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S();
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~S();
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};
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template <typename T> struct __declspec(dllexport) ExportedTemplate {
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static S s;
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};
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template <typename T> S ExportedTemplate<T>::s;
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void useExportedTemplate(ExportedTemplate<int> x) {
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(void)x.s;
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}
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int f();
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namespace selectany_init {
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// MS don't put selectany static var in the linker directive, init routine
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// f() is not getting called if x is not referenced.
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int __declspec(selectany) x = f();
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inline int __declspec(selectany) x1 = f();
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}
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namespace explicit_template_instantiation {
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template <typename T> struct A { static int x; };
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template <typename T> int A<T>::x = f();
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template struct A<int>;
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}
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namespace implicit_template_instantiation {
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template <typename T> struct A { static int x; };
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template <typename T> int A<T>::x = f();
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int g() { return A<int>::x; }
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}
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template <class T>
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struct X_ {
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static T ioo;
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static T init();
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};
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template <class T> T X_<T>::ioo = X_<T>::init();
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template struct X_<int>;
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template <class T>
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struct X {
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static T ioo;
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static T init();
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};
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// template specialized static data don't need in llvm.used,
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// the static init routine get call from _GLOBAL__sub_I_ routines.
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template <> int X<int>::ioo = X<int>::init();
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template struct X<int>;
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class a {
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public:
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a();
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};
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// For the static var inside unnamed namespace, the object is local to TU.
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// No need to put static var in the linker directive.
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// The static init routine is called before main.
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namespace {
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template <int> class aj {
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public:
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static a al;
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};
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template <int am> a aj<am>::al;
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class b : aj<3> {
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void c();
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};
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void b::c() { al; }
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}
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// C++17, inline static data member also need to use
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struct A
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{
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A();
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~A();
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};
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struct S1
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{
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inline static A aoo; // C++17 inline variable, thus also a definition
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};
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int foo();
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inline int zoo = foo();
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inline static int boo = foo();
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// CHECK: @llvm.used = appending global [7 x i8*] [i8* bitcast (i32* @"?x1@selectany_init@@3HA" to i8*), i8* bitcast (i32* @"?x@?$A@H@explicit_template_instantiation@@2HA" to i8*), i8* bitcast (i32* @"?ioo@?$X_@H@@2HA" to i8*), i8* getelementptr inbounds (%struct.A, %struct.A* @"?aoo@S1@@2UA@@A", i32 0, i32 0), i8* bitcast (i32* @"?zoo@@3HA" to i8*), i8* getelementptr inbounds (%struct.S, %struct.S* @"?s@?$ExportedTemplate@H@@2US@@A", i32 0, i32 0), i8* bitcast (i32* @"?x@?$A@H@implicit_template_instantiation@@2HA" to i8*)], section "llvm.metadata"
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