15681d6852
typeid (and a couple other non-standard places where we can transform an unevaluated expression into an evaluated expression) is special because it introduces an an expression evaluation context, which conflicts with the mechanism to compute the current lambda mangling context. PR12123. I would appreciate if someone would double-check that we get the mangling correct with this patch. llvm-svn: 164658
253 lines
7.6 KiB
C++
253 lines
7.6 KiB
C++
// RUN: %clang_cc1 -std=c++11 -triple x86_64-apple-macosx10.7.0 -emit-llvm -o - %s | FileCheck %s
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// CHECK: @_ZZNK7PR12917IJiiEE1nMUlvE_clEvE1n = linkonce_odr global i32 0
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// CHECK: @_ZZN7PR12917IJicdEEC1EicdEd_N1nE = linkonce_odr global i32 0
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// CHECK: @_ZZN7PR12917IJicdEEC1EicdEd0_N1nE = linkonce_odr global i32 0
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// CHECK: @_ZZN7PR12917IJicdEEC1EicdEd1_N1nE = linkonce_odr global i32 0
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// CHECK: define linkonce_odr void @_Z11inline_funci
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inline void inline_func(int n) {
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// CHECK: call i32 @_ZZ11inline_funciENKUlvE_clEv
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int i = []{ return 1; }();
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// CHECK: call i32 @_ZZ11inline_funciENKUlvE0_clEv
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int j = [=] { return n + i; }();
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// CHECK: call double @_ZZ11inline_funciENKUlvE1_clEv
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int k = [=] () -> double { return n + i; }();
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// CHECK: call i32 @_ZZ11inline_funciENKUliE_clEi
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int l = [=] (int x) -> int { return x + i; }(n);
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int inner(int i = []{ return 17; }());
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// CHECK: call i32 @_ZZ11inline_funciENKUlvE2_clEv
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// CHECK-NEXT: call i32 @_Z5inneri
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inner();
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// CHECK-NEXT: ret void
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}
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void call_inline_func() {
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inline_func(17);
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}
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struct S {
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void f(int = []{return 1;}()
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+ []{return 2;}(),
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int = []{return 3;}());
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void g(int, int);
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};
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void S::g(int i = []{return 1;}(),
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int j = []{return 2; }()) {}
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// CHECK: define void @_Z6test_S1S
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void test_S(S s) {
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// CHECK: call i32 @_ZZN1S1fEiiEd0_NKUlvE_clEv
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// CHECK-NEXT: call i32 @_ZZN1S1fEiiEd0_NKUlvE0_clEv
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// CHECK-NEXT: add nsw i32
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// CHECK-NEXT: call i32 @_ZZN1S1fEiiEd_NKUlvE_clEv
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// CHECK-NEXT: call void @_ZN1S1fEii
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s.f();
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// NOTE: These manglings don't actually matter that much, because
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// the lambdas in the default arguments of g() won't be seen by
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// multiple translation units. We check them mainly to ensure that they don't
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// get the special mangling for lambdas in in-class default arguments.
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// CHECK: call i32 @"_ZNK1S3$_0clEv"
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// CHECK-NEXT: call i32 @"_ZNK1S3$_1clEv"
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// CHECK-NEXT: call void @_ZN1S1gEi
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s.g();
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// CHECK-NEXT: ret void
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}
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// Check the linkage of the lambda call operators used in test_S.
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// CHECK: define linkonce_odr i32 @_ZZN1S1fEiiEd0_NKUlvE_clEv
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// CHECK: ret i32 1
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// CHECK: define linkonce_odr i32 @_ZZN1S1fEiiEd0_NKUlvE0_clEv
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// CHECK: ret i32 2
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// CHECK: define linkonce_odr i32 @_ZZN1S1fEiiEd_NKUlvE_clEv
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// CHECK: ret i32 3
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// CHECK: define internal i32 @"_ZNK1S3$_0clEv"
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// CHECK: ret i32 1
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// CHECK: define internal i32 @"_ZNK1S3$_1clEv"
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// CHECK: ret i32 2
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template<typename T>
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struct ST {
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void f(T = []{return T() + 1;}()
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+ []{return T() + 2;}(),
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T = []{return T(3);}());
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};
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// CHECK: define void @_Z7test_ST2STIdE
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void test_ST(ST<double> st) {
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// CHECK: call double @_ZZN2STIdE1fEddEd0_NKUlvE_clEv
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// CHECK-NEXT: call double @_ZZN2STIdE1fEddEd0_NKUlvE0_clEv
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// CHECK-NEXT: fadd double
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// CHECK-NEXT: call double @_ZZN2STIdE1fEddEd_NKUlvE_clEv
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// CHECK-NEXT: call void @_ZN2STIdE1fEdd
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st.f();
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// CHECK-NEXT: ret void
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}
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// Check the linkage of the lambda call operators used in test_ST.
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// CHECK: define linkonce_odr double @_ZZN2STIdE1fEddEd0_NKUlvE_clEv
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// CHECK: ret double 1
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// CHECK: define linkonce_odr double @_ZZN2STIdE1fEddEd0_NKUlvE0_clEv
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// CHECK: ret double 2
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// CHECK: define linkonce_odr double @_ZZN2STIdE1fEddEd_NKUlvE_clEv
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// CHECK: ret double 3
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template<typename T>
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struct StaticMembers {
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static T x;
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static T y;
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static T z;
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};
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template<typename T> int accept_lambda(T);
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template<typename T>
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T StaticMembers<T>::x = []{return 1;}() + []{return 2;}();
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template<typename T>
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T StaticMembers<T>::y = []{return 3;}();
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template<typename T>
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T StaticMembers<T>::z = accept_lambda([]{return 4;});
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// CHECK: define internal void @__cxx_global_var_init()
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// CHECK: call i32 @_ZNK13StaticMembersIfE1xMUlvE_clEv
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// CHECK-NEXT: call i32 @_ZNK13StaticMembersIfE1xMUlvE0_clEv
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// CHECK-NEXT: add nsw
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// CHECK: define linkonce_odr i32 @_ZNK13StaticMembersIfE1xMUlvE_clEv
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// CHECK: ret i32 1
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// CHECK: define linkonce_odr i32 @_ZNK13StaticMembersIfE1xMUlvE0_clEv
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// CHECK: ret i32 2
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template float StaticMembers<float>::x;
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// CHECK: define internal void @__cxx_global_var_init1()
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// CHECK: call i32 @_ZNK13StaticMembersIfE1yMUlvE_clEv
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// CHECK: define linkonce_odr i32 @_ZNK13StaticMembersIfE1yMUlvE_clEv
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// CHECK: ret i32 3
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template float StaticMembers<float>::y;
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// CHECK: define internal void @__cxx_global_var_init2()
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// CHECK: call i32 @_Z13accept_lambdaIN13StaticMembersIfE1zMUlvE_EEiT_
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// CHECK: declare i32 @_Z13accept_lambdaIN13StaticMembersIfE1zMUlvE_EEiT_()
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template float StaticMembers<float>::z;
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// CHECK: define internal void @__cxx_global_var_init3
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// CHECK: call i32 @"_ZNK13StaticMembersIdE3$_2clEv"
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// CHECK: define internal i32 @"_ZNK13StaticMembersIdE3$_2clEv"
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// CHECK: ret i32 42
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template<> double StaticMembers<double>::z = []{return 42; }();
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template<typename T>
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void func_template(T = []{ return T(); }());
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// CHECK: define void @_Z17use_func_templatev()
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void use_func_template() {
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// CHECK: call i32 @"_ZZ13func_templateIiEvT_ENKS_IiE3$_3clEv"
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func_template<int>();
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}
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template<typename...T> struct PR12917 {
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PR12917(T ...t = []{ static int n = 0; return ++n; }());
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static int n[3];
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};
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template<typename...T> int PR12917<T...>::n[3] = {
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[]{ static int n = 0; return ++n; }()
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};
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// CHECK: call i32 @_ZZN7PR12917IJicdEEC1EicdEd1_NKUlvE_clEv(
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// CHECK: call i32 @_ZZN7PR12917IJicdEEC1EicdEd0_NKUlvE_clEv(
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// CHECK: call i32 @_ZZN7PR12917IJicdEEC1EicdEd_NKUlvE_clEv(
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// CHECK: call void @_ZN7PR12917IJicdEEC1Eicd(
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PR12917<int, char, double> pr12917;
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int *pr12917_p = PR12917<int, int>::n;
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namespace std {
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struct type_info;
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}
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namespace PR12123 {
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struct A { virtual ~A(); } g;
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struct B {
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void f(const std::type_info& x = typeid([]()->A& { return g; }()));
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void h();
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};
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void B::h() { f(); }
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}
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// CHECK: define linkonce_odr %"struct.PR12123::A"* @_ZZN7PR121231B1fERKSt9type_infoEd_NKUlvE_clEv
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namespace PR12808 {
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template <typename> struct B {
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int a;
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template <typename L> constexpr B(L&& x) : a(x()) { }
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};
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template <typename> void b(int) {
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[&]{ (void)B<int>([&]{ return 1; }); }();
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}
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void f() {
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b<int>(1);
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}
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// CHECK: define linkonce_odr void @_ZZN7PR128081bIiEEviENKS0_IiEUlvE_clEv
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// CHECK: define linkonce_odr i32 @_ZZZN7PR128081bIiEEviENKS0_IiEUlvE_clEvENKUlvE_clEv
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}
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// CHECK: define linkonce_odr void @_Z1fIZZNK23TestNestedInstantiationclEvENKUlvE_clEvEUlvE_EvT_
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struct Members {
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int x = [] { return 1; }() + [] { return 2; }();
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int y = [] { return 3; }();
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};
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void test_Members() {
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// CHECK: define linkonce_odr void @_ZN7MembersC2Ev
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// CHECK: call i32 @_ZNK7Members1xMUlvE_clEv
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// CHECK-NEXT: call i32 @_ZNK7Members1xMUlvE0_clE
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// CHECK-NEXT: add nsw i32
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// CHECK: call i32 @_ZNK7Members1yMUlvE_clEv
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Members members;
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// CHECK: ret void
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}
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template<typename P> void f(P) { }
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struct TestNestedInstantiation {
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void operator()() const {
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[]() -> void {
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return f([]{});
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}();
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}
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};
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void test_NestedInstantiation() {
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TestNestedInstantiation()();
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}
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// Check the linkage of the lambdas used in test_Members.
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// CHECK: define linkonce_odr i32 @_ZNK7Members1xMUlvE_clEv
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// CHECK: ret i32 1
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// CHECK: define linkonce_odr i32 @_ZNK7Members1xMUlvE0_clEv
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// CHECK: ret i32 2
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// CHECK: define linkonce_odr i32 @_ZNK7Members1yMUlvE_clEv
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// CHECK: ret i32 3
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// Check linkage of the various lambdas.
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// CHECK: define linkonce_odr i32 @_ZZ11inline_funciENKUlvE_clEv
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// CHECK: ret i32 1
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// CHECK: define linkonce_odr i32 @_ZZ11inline_funciENKUlvE0_clEv
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// CHECK: ret i32
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// CHECK: define linkonce_odr double @_ZZ11inline_funciENKUlvE1_clEv
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// CHECK: ret double
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// CHECK: define linkonce_odr i32 @_ZZ11inline_funciENKUliE_clEi
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// CHECK: ret i32
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// CHECK: define linkonce_odr i32 @_ZZ11inline_funciENKUlvE2_clEv
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// CHECK: ret i32 17
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