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

1 files changed, 222 insertions, 0 deletions

diff --git a/clang/test/CodeGenCXX/constructor-init.cpp b/clang/test/CodeGenCXX/constructor-init.cpp
new file mode 100644
index 0000000..9f808f6
--- /dev/null
+++ b/clang/test/CodeGenCXX/constructor-init.cpp
@@ -0,0 +1,222 @@
+// RUN: %clang_cc1 -std=c++11 -triple x86_64-apple-darwin10 %s -emit-llvm -o %t
+// RUN: FileCheck %s < %t
+// RUN: FileCheck -check-prefix=CHECK-PR10720 %s < %t
+
+extern "C" int printf(...);
+
+struct M {
+  M() { printf("M()\n"); }
+  M(int i) { iM = i; printf("M(%d)\n", i); }
+  int iM;
+  void MPR() {printf("iM = %d\n", iM); };
+};
+
+struct P {
+  P() { printf("P()\n"); }
+  P(int i) { iP = i; printf("P(%d)\n", i); }
+  int iP;
+  void PPR() {printf("iP = %d\n", iP); };
+};
+
+struct Q {
+  Q() { printf("Q()\n"); }
+  Q(int i) { iQ = i; printf("Q(%d)\n", i); }
+  int iQ;
+  void QPR() {printf("iQ = %d\n", iQ); };
+};
+
+struct N : M , P, Q {
+  N() : f1(1.314), P(2000), ld(00.1234+f1), M(1000), Q(3000),
+        d1(3.4567), i1(1234), m1(100) { printf("N()\n"); }
+  M m1;
+  M m2;
+  float f1;
+  int i1;
+  float d1;
+  void PR() {
+    printf("f1 = %f d1 = %f i1 = %d ld = %f \n", f1,d1,i1, ld); 
+    MPR();
+    PPR();
+    QPR();
+    printf("iQ = %d\n", iQ);
+    printf("iP = %d\n", iP);
+    printf("iM = %d\n", iM);
+    // FIXME. We don't yet support this syntax.
+    // printf("iQ = %d\n", (*this).iQ);
+    printf("iQ = %d\n", this->iQ);
+    printf("iP = %d\n", this->iP);
+    printf("iM = %d\n", this->iM);
+  }
+  float ld;
+  float ff;
+  M arr_m[3];
+  P arr_p[1][3];
+  Q arr_q[2][3][4];
+};
+
+int main() {
+  M m1;
+
+  N n1;
+  n1.PR();
+}
+
+// PR5826
+template <class T> struct A {
+  A() {}
+  A(int) {}
+  A(const A&) {}
+  ~A() {}
+  operator int() {return 0;}
+};
+
+// CHECK: define void @_Z1fv()
+void f() {
+  // CHECK: call void @_ZN1AIsEC1Ei
+  A<short> a4 = 97;
+
+  // CHECK-NEXT: store i32 17
+  int i = 17;
+
+  // CHECK-NEXT: call void @_ZN1AIsED1Ev
+  // CHECK-NOT: call void @_ZN1AIsED1Ev
+  // CHECK: ret void
+}
+
+// Make sure we initialize the vtable pointer if it's required by a
+// base initializer.
+namespace InitVTable {
+  struct A { A(int); };
+  struct B : A {
+    virtual int foo();
+    B();
+    B(int);
+  };
+
+  // CHECK: define void @_ZN10InitVTable1BC2Ev(%"struct.InitVTable::B"* %this) unnamed_addr
+  // CHECK:      [[T0:%.*]] = bitcast [[B:%.*]]* [[THIS:%.*]] to i8***
+  // CHECK-NEXT: store i8** getelementptr inbounds ([3 x i8*]* @_ZTVN10InitVTable1BE, i64 0, i64 2), i8*** [[T0]]
+  // CHECK:      [[VTBL:%.*]] = load i32 ([[B]]*)*** {{%.*}}
+  // CHECK-NEXT: [[FNP:%.*]] = getelementptr inbounds i32 ([[B]]*)** [[VTBL]], i64 0
+  // CHECK-NEXT: [[FN:%.*]] = load i32 ([[B]]*)** [[FNP]]
+  // CHECK-NEXT: [[ARG:%.*]] = call i32 [[FN]]([[B]]* [[THIS]])
+  // CHECK-NEXT: call void @_ZN10InitVTable1AC2Ei({{.*}}* {{%.*}}, i32 [[ARG]])
+  // CHECK-NEXT: [[T0:%.*]] = bitcast [[B]]* [[THIS]] to i8***
+  // CHECK-NEXT: store i8** getelementptr inbounds ([3 x i8*]* @_ZTVN10InitVTable1BE, i64 0, i64 2), i8*** [[T0]]
+  // CHECK-NEXT: ret void
+  B::B() : A(foo()) {}
+
+  // CHECK: define void @_ZN10InitVTable1BC2Ei(%"struct.InitVTable::B"* %this, i32 %x) unnamed_addr
+  // CHECK:      [[ARG:%.*]] = add nsw i32 {{%.*}}, 5
+  // CHECK-NEXT: call void @_ZN10InitVTable1AC2Ei({{.*}}* {{%.*}}, i32 [[ARG]])
+  // CHECK-NEXT: [[T0:%.*]] = bitcast [[B]]* {{%.*}} to i8***
+  // CHECK-NEXT: store i8** getelementptr inbounds ([3 x i8*]* @_ZTVN10InitVTable1BE, i64 0, i64 2), i8*** [[T0]]
+  // CHECK-NEXT: ret void
+  B::B(int x) : A(x + 5) {}
+}
+
+namespace rdar9694300 {
+  struct X {
+    int x;
+  };
+
+  // CHECK: define void @_ZN11rdar96943001fEv
+  void f() {
+    // CHECK: alloca
+    X x;
+    // CHECK-NEXT: [[I:%.*]] = alloca i32
+    // CHECK-NEXT: store i32 17, i32* [[I]]
+    int i = 17;
+    // CHECK-NEXT: ret void
+  }
+}
+
+template<typename T>
+struct X {
+  X(const X &);
+
+  T *start;
+  T *end;
+};
+
+template<typename T> struct X;
+
+// Make sure that the instantiated constructor initializes start and
+// end properly.
+// CHECK: define linkonce_odr void @_ZN1XIiEC2ERKS0_(%struct.X* %this, %struct.X* %other) unnamed_addr
+// CHECK: {{store.*null}}
+// CHECK: {{store.*null}}
+// CHECK: ret
+template<typename T>
+X<T>::X(const X &other) : start(0), end(0) { }
+
+X<int> get_X(X<int> x) { return x; }
+
+namespace PR10720 {
+  struct X { 
+    X(const X&); 
+    X(X&&); 
+    X& operator=(const X&);
+    X& operator=(X&&);
+    ~X(); 
+  };
+
+  struct pair2 {
+    X second[4];
+
+    // CHECK-PR10720: define linkonce_odr {{.*}} @_ZN7PR107205pair2aSERKS0_
+    // CHECK-PR10720: load
+    // CHECK-PR10720: icmp ne
+    // CHECK-PR10720-NEXT: br i1
+    // CHECK-PR10720: call {{.*}} @_ZN7PR107201XaSERKS0_
+    // CHECK-PR10720: ret
+    pair2 &operator=(const pair2&) = default;
+
+    // CHECK-PR10720: define linkonce_odr {{.*}} @_ZN7PR107205pair2aSEOS0_
+    // CHECK-PR10720: load
+    // CHECK-PR10720: icmp ne
+    // CHECK-PR10720-NEXT: br i1
+    // CHECK-PR10720: call {{.*}} @_ZN7PR107201XaSEOS0_
+    // CHECK-PR10720: ret
+    pair2 &operator=(pair2&&) = default;
+
+    // CHECK-PR10720: define linkonce_odr void @_ZN7PR107205pair2C2EOS0_
+    // CHECK-PR10720-NOT: ret
+    // CHECK-PR10720: load
+    // CHECK-PR10720: icmp ult
+    // CHECK-PR10720-NEXT: br i1
+    // CHECK-PR10720: call void @_ZN7PR107201XC1EOS0_
+    // CHECK-PR10720-NEXT: br label
+    // CHECK-PR10720: ret void
+    pair2(pair2&&) = default;
+
+    // CHECK-PR10720: define linkonce_odr void @_ZN7PR107205pair2C2ERKS0_
+    // CHECK-PR10720-NOT: ret
+    // CHECK-PR10720: load
+    // CHECK-PR10720: icmp ult
+    // CHECK-PR10720-NEXT: br i1
+    // CHECK-PR10720: call void @_ZN7PR107201XC1ERKS0_
+    // CHECK-PR10720-NEXT: br label
+    // CHECK-PR10720: ret void
+    pair2(const pair2&) = default;
+  };
+
+  struct pair : X { // Make the copy constructor non-trivial, so we actually generate it.
+    int second[4];
+    // CHECK-PR10720: define linkonce_odr void @_ZN7PR107204pairC2ERKS0_
+    // CHECK-PR10720-NOT: ret
+    // CHECK-PR10720: call void @llvm.memcpy
+    // CHECK-PR10720-NEXT: ret void
+    pair(const pair&) = default;
+  };
+
+  void foo(const pair &x, const pair2 &x2) {
+    pair y(x);
+    pair2 y2(x2);
+    pair2 y2m(static_cast<pair2&&>(y2));
+
+    y2 = x2;
+    y2m = static_cast<pair2&&>(y2);
+  }
+
+}