Add the clang library to the repo (with some of my changes, too).

1 files changed, 115 insertions, 0 deletions

diff --git a/clang/test/CodeGenCXX/constructors.cpp b/clang/test/CodeGenCXX/constructors.cpp
new file mode 100644
index 0000000..9e2da31
--- /dev/null
+++ b/clang/test/CodeGenCXX/constructors.cpp
@@ -0,0 +1,115 @@
+// 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. */
+struct A {
+  A(struct Undeclared &);
+  A(ValueClass);
+  Member mem;
+};
+
+A::A(struct Undeclared &ref) : mem(0) {}
+
+// Check that delegation works.
+// CHECK: define void @_ZN1AC1ER10Undeclared(%struct.A* %this, %struct.Undeclared* %ref) unnamed_addr
+// CHECK: call void @_ZN1AC2ER10Undeclared(
+
+// CHECK: define void @_ZN1AC2ER10Undeclared(%struct.A* %this, %struct.Undeclared* %ref) unnamed_addr
+// CHECK: call void @_ZN6MemberC1Ei(
+
+A::A(ValueClass v) : mem(v.y - v.x) {}
+
+// CHECK: define void @_ZN1AC1E10ValueClass(%struct.A* %this, i64 %v.coerce) unnamed_addr
+// CHECK: call void @_ZN1AC2E10ValueClass(
+
+// CHECK: define void @_ZN1AC2E10ValueClass(%struct.A* %this, i64 %v.coerce) unnamed_addr
+// 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(%struct.B* %this, %struct.Undeclared* %ref) unnamed_addr
+// CHECK: call void @_ZN1BC2ER10Undeclared(
+
+// CHECK: define void @_ZN1BC2ER10Undeclared(%struct.B* %this, %struct.Undeclared* %ref) unnamed_addr
+// 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(%struct.C* %this, i32 %x) unnamed_addr
+// CHECK: call void @_ZN10ValueClassC1Eii(
+// CHECK: call void @_ZN1AC2E10ValueClass(
+// CHECK: call void @_ZN6MemberC1Ei(
+
+// CHECK: define void @_ZN1CC2Ei(%struct.C* %this, i8** %vtt, i32 %x) unnamed_addr
+// 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(%struct.D* %this, i32 %x, ...) unnamed_addr
+// CHECK: call void @_ZN10ValueClassC1Eii(
+// CHECK: call void @_ZN1AC2E10ValueClass(
+// CHECK: call void @_ZN6MemberC1Ei(
+
+// CHECK: define void @_ZN1DC2Eiz(%struct.D* %this, i32 %x, ...) unnamed_addr
+// CHECK: call void @_ZN10ValueClassC1Eii(
+// CHECK: call void @_ZN1AC2E10ValueClass(
+// CHECK: call void @_ZN6MemberC1Ei(
+
+
+// PR6622:  this shouldn't crash
+namespace test0 {
+  struct A {};
+  struct B : virtual A { int x; };
+  struct C : B {};
+  
+  void test(C &in) {
+    C tmp = in;
+  }
+}
+
+namespace test1 {
+  struct A { A(); void *ptr; };
+  struct B { B(); int x; A a[0]; };
+  B::B() {}
+  // CHECK:    define void @_ZN5test11BC2Ev(
+  // CHECK:      [[THIS:%.*]] = load [[B:%.*]]**
+  // CHECK-NEXT: ret void
+}