xref: /aosp_15_r20/external/clang/test/CodeGenCXX/default-arg-temps.cpp (revision 67e74705e28f6214e480b399dd47ea732279e315)
1*67e74705SXin Li // RUN: %clang_cc1 -emit-llvm %s -o - -triple=x86_64-apple-darwin9 | FileCheck %s
2*67e74705SXin Li 
3*67e74705SXin Li struct T {
4*67e74705SXin Li   T();
5*67e74705SXin Li   ~T();
6*67e74705SXin Li };
7*67e74705SXin Li 
8*67e74705SXin Li void f(const T& t = T());
9*67e74705SXin Li 
10*67e74705SXin Li class X { // ...
11*67e74705SXin Li public:
12*67e74705SXin Li         X();
13*67e74705SXin Li         X(const X&, const T& t = T());
14*67e74705SXin Li };
15*67e74705SXin Li 
16*67e74705SXin Li // CHECK-LABEL: define void @_Z1gv()
g()17*67e74705SXin Li void g() {
18*67e74705SXin Li   // CHECK:      call void @_ZN1TC1Ev([[T:%.*]]* [[AGG1:%.*]])
19*67e74705SXin Li   // CHECK-NEXT: call void @_Z1fRK1T([[T]]* dereferenceable({{[0-9]+}}) [[AGG1]])
20*67e74705SXin Li   // CHECK-NEXT: call void @_ZN1TD1Ev([[T]]* [[AGG1]])
21*67e74705SXin Li   f();
22*67e74705SXin Li 
23*67e74705SXin Li   // CHECK-NEXT: call void @_ZN1TC1Ev([[T:%.*]]* [[AGG2:%.*]])
24*67e74705SXin Li   // CHECK-NEXT: call void @_Z1fRK1T([[T]]* dereferenceable({{[0-9]+}}) [[AGG2]])
25*67e74705SXin Li   // CHECK-NEXT: call void @_ZN1TD1Ev([[T]]* [[AGG2]])
26*67e74705SXin Li   f();
27*67e74705SXin Li 
28*67e74705SXin Li   // CHECK-NEXT: call void @_ZN1XC1Ev(
29*67e74705SXin Li   X a;
30*67e74705SXin Li 
31*67e74705SXin Li   // CHECK-NEXT: call void @_ZN1TC1Ev(
32*67e74705SXin Li   // CHECK-NEXT: call void @_ZN1XC1ERKS_RK1T(
33*67e74705SXin Li   // CHECK-NEXT: call void @_ZN1TD1Ev(
34*67e74705SXin Li   X b(a);
35*67e74705SXin Li 
36*67e74705SXin Li   // CHECK-NEXT: call void @_ZN1TC1Ev(
37*67e74705SXin Li   // CHECK-NEXT: call void @_ZN1XC1ERKS_RK1T(
38*67e74705SXin Li   // CHECK-NEXT: call void @_ZN1TD1Ev(
39*67e74705SXin Li   X c = a;
40*67e74705SXin Li }
41*67e74705SXin Li 
42*67e74705SXin Li 
43*67e74705SXin Li class obj{ int a; float b; double d; };
44*67e74705SXin Li // CHECK-LABEL: define void @_Z1hv()
h()45*67e74705SXin Li void h() {
46*67e74705SXin Li   // CHECK: call void @llvm.memset.p0i8.i64(
47*67e74705SXin Li   obj o = obj();
48*67e74705SXin Li }
49*67e74705SXin Li 
50*67e74705SXin Li // PR7028 - mostly this shouldn't crash
51*67e74705SXin Li namespace test1 {
52*67e74705SXin Li   struct A { A(); };
53*67e74705SXin Li   struct B { B(); ~B(); };
54*67e74705SXin Li 
55*67e74705SXin Li   struct C {
56*67e74705SXin Li     C(const B &file = B());
57*67e74705SXin Li   };
C(const B & file)58*67e74705SXin Li   C::C(const B &file) {}
59*67e74705SXin Li 
60*67e74705SXin Li   struct D {
61*67e74705SXin Li     C c;
62*67e74705SXin Li     A a;
63*67e74705SXin Li 
64*67e74705SXin Li     // CHECK-LABEL: define linkonce_odr void @_ZN5test11DC2Ev(%"struct.test1::D"* %this) unnamed_addr
65*67e74705SXin Li     // CHECK:      call void @_ZN5test11BC1Ev(
66*67e74705SXin Li     // CHECK-NEXT: call void @_ZN5test11CC1ERKNS_1BE(
67*67e74705SXin Li     // CHECK-NEXT: call void @_ZN5test11BD1Ev(
68*67e74705SXin Li     // CHECK:      call void @_ZN5test11AC1Ev(
Dtest1::D69*67e74705SXin Li     D() : c(), a() {}
70*67e74705SXin Li   };
71*67e74705SXin Li 
72*67e74705SXin Li   D d;
73*67e74705SXin Li }
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