1 // RUN: %clang_cc1 -triple x86_64-apple-darwin10 %s -emit-llvm -o - | FileCheck %s
3 struct Member { int x; Member(); Member(int); Member(const Member &); };
4 struct VBase { int x; VBase(); VBase(int); VBase(const VBase &); };
7 ValueClass(int x, int y) : x(x), y(y) {}
10 }; // subject to ABI trickery
14 /* Test basic functionality. */
16 A(struct Undeclared &);
21 A::A(struct Undeclared &ref) : mem(0) {}
23 // Check that delegation works.
24 // CHECK: define void @_ZN1AC1ER10Undeclared(%struct.A* %this, %struct.Undeclared* %ref) unnamed_addr
25 // CHECK: call void @_ZN1AC2ER10Undeclared(
27 // CHECK: define void @_ZN1AC2ER10Undeclared(%struct.A* %this, %struct.Undeclared* %ref) unnamed_addr
28 // CHECK: call void @_ZN6MemberC1Ei(
30 A::A(ValueClass v) : mem(v.y - v.x) {}
32 // CHECK: define void @_ZN1AC1E10ValueClass(%struct.A* %this, i64 %v.coerce) unnamed_addr
33 // CHECK: call void @_ZN1AC2E10ValueClass(
35 // CHECK: define void @_ZN1AC2E10ValueClass(%struct.A* %this, i64 %v.coerce) unnamed_addr
36 // CHECK: call void @_ZN6MemberC1Ei(
39 /* Test that things work for inheritance. */
41 B(struct Undeclared &);
45 B::B(struct Undeclared &ref) : A(ref), mem(1) {}
47 // CHECK: define void @_ZN1BC1ER10Undeclared(%struct.B* %this, %struct.Undeclared* %ref) unnamed_addr
48 // CHECK: call void @_ZN1BC2ER10Undeclared(
50 // CHECK: define void @_ZN1BC2ER10Undeclared(%struct.B* %this, %struct.Undeclared* %ref) unnamed_addr
51 // CHECK: call void @_ZN1AC2ER10Undeclared(
52 // CHECK: call void @_ZN6MemberC1Ei(
56 /* Test that the delegation optimization is disabled for classes with
57 virtual bases (for now). This is necessary because a vbase
58 initializer could access one of the parameter variables by
59 reference. That's a solvable problem, but let's not solve it right
61 struct C : virtual A {
65 C::C(int x) : A(ValueClass(x, x+1)), mem(x * x) {}
67 // CHECK: define void @_ZN1CC1Ei(%struct.C* %this, i32 %x) unnamed_addr
68 // CHECK: call void @_ZN10ValueClassC1Eii(
69 // CHECK: call void @_ZN1AC2E10ValueClass(
70 // CHECK: call void @_ZN6MemberC1Ei(
72 // CHECK: define void @_ZN1CC2Ei(%struct.C* %this, i8** %vtt, i32 %x) unnamed_addr
73 // CHECK: call void @_ZN6MemberC1Ei(
77 /* Test that the delegation optimization is disabled for varargs
84 D::D(int x, ...) : A(ValueClass(x, x+1)), mem(x*x) {}
86 // CHECK: define void @_ZN1DC1Eiz(%struct.D* %this, i32 %x, ...) unnamed_addr
87 // CHECK: call void @_ZN10ValueClassC1Eii(
88 // CHECK: call void @_ZN1AC2E10ValueClass(
89 // CHECK: call void @_ZN6MemberC1Ei(
91 // CHECK: define void @_ZN1DC2Eiz(%struct.D* %this, i32 %x, ...) unnamed_addr
92 // CHECK: call void @_ZN10ValueClassC1Eii(
93 // CHECK: call void @_ZN1AC2E10ValueClass(
94 // CHECK: call void @_ZN6MemberC1Ei(
97 // PR6622: this shouldn't crash
100 struct B : virtual A { int x; };
109 struct A { A(); void *ptr; };
110 struct B { B(); int x; A a[0]; };
112 // CHECK: define void @_ZN5test11BC2Ev(
113 // CHECK: [[THIS:%.*]] = load [[B:%.*]]**
114 // CHECK-NEXT: [[A:%.*]] = getelementptr inbounds [[B:%.*]]* [[THIS]], i32 0, i32 1
115 // CHECK-NEXT: [[BEGIN:%.*]] = getelementptr inbounds [0 x {{%.*}}]* [[A]], i32 0, i32 0
116 // CHECK-NEXT: ret void