1 files changed, 94 insertions, 0 deletions

diff --git a/test/CodeGenCXX/constructors.cpp b/test/CodeGenCXX/constructors.cpp
new file mode 100644
index 000000000000..2c95c91e1114
--- /dev/null
+++ b/test/CodeGenCXX/constructors.cpp
@@ -0,0 +1,94 @@
+// RUN: %clang_cc1 -triple x86_64-apple-darwin10 %s -emit-llvm -o - | FileCheck %s
+
+struct Member { int x; Member(); Member(int); Member(const Member &); };
+struct VBase { int x; VBase(); VBase(int); VBase(const VBase &); };
+
+struct ValueClass {
+  ValueClass(int x, int y) : x(x), y(y) {}
+  int x;
+  int y;
+}; // subject to ABI trickery
+
+
+
+/* Test basic functionality. */
+class A {
+  A(struct Undeclared &);
+  A(ValueClass);
+  Member mem;
+};
+
+A::A(struct Undeclared &ref) : mem(0) {}
+
+// Check that delegation works.
+// CHECK: define void @_ZN1AC1ER10Undeclared(
+// CHECK: call void @_ZN1AC2ER10Undeclared(
+
+// CHECK: define void @_ZN1AC2ER10Undeclared(
+// CHECK: call void @_ZN6MemberC1Ei(
+
+A::A(ValueClass v) : mem(v.y - v.x) {}
+
+// CHECK: define void @_ZN1AC1E10ValueClass(
+// CHECK: call void @_ZN1AC2E10ValueClass(
+
+// CHECK: define void @_ZN1AC2E10ValueClass(
+// CHECK: call void @_ZN6MemberC1Ei(
+
+
+/* Test that things work for inheritance. */
+struct B : A {
+  B(struct Undeclared &);
+  Member mem;
+};
+
+B::B(struct Undeclared &ref) : A(ref), mem(1) {}
+
+// CHECK: define void @_ZN1BC1ER10Undeclared(
+// CHECK: call void @_ZN1BC2ER10Undeclared(
+
+// CHECK: define void @_ZN1BC2ER10Undeclared(
+// CHECK: call void @_ZN1AC2ER10Undeclared(
+// CHECK: call void @_ZN6MemberC1Ei(
+
+
+
+/* Test that the delegation optimization is disabled for classes with
+   virtual bases (for now).  This is necessary because a vbase
+   initializer could access one of the parameter variables by
+   reference.  That's a solvable problem, but let's not solve it right
+   now. */
+struct C : virtual A {
+  C(int);
+  Member mem;
+};
+C::C(int x) : A(ValueClass(x, x+1)), mem(x * x) {}
+
+// CHECK: define void @_ZN1CC1Ei(
+// CHECK: call void @_ZN10ValueClassC1Eii(
+// CHECK: call void @_ZN1AC2E10ValueClass(
+// CHECK: call void @_ZN6MemberC1Ei(
+
+// CHECK: define void @_ZN1CC2Ei(
+// CHECK: call void @_ZN6MemberC1Ei(
+
+
+
+/* Test that the delegation optimization is disabled for varargs
+   constructors. */
+struct D : A {
+  D(int, ...);
+  Member mem;
+};
+
+D::D(int x, ...) : A(ValueClass(x, x+1)), mem(x*x) {}
+
+// CHECK: define void @_ZN1DC1Eiz(
+// CHECK: call void @_ZN10ValueClassC1Eii(
+// CHECK: call void @_ZN1AC2E10ValueClass(
+// CHECK: call void @_ZN6MemberC1Ei(
+
+// CHECK: define void @_ZN1DC2Eiz(
+// CHECK: call void @_ZN10ValueClassC1Eii(
+// CHECK: call void @_ZN1AC2E10ValueClass(
+// CHECK: call void @_ZN6MemberC1Ei(