1 files changed, 274 insertions, 0 deletions
diff --git a/clang/test/CodeGenCXX/member-function-pointers.cpp b/clang/test/CodeGenCXX/member-function-pointers.cpp
new file mode 100644
index 0000000..2417aa4
--- /dev/null
+++ b/clang/test/CodeGenCXX/member-function-pointers.cpp
@@ -0,0 +1,274 @@
+// RUN: %clang_cc1 %s -emit-llvm -o - -triple=x86_64-apple-darwin9 | FileCheck %s
+// RUN: %clang_cc1 %s -emit-llvm -o - -triple=i386-apple-darwin9 | FileCheck -check-prefix LP32 %s
+// RUN: %clang_cc1 %s -emit-llvm -o - -triple=armv7-unknown-unknown | FileCheck -check-prefix ARM %s
+
+struct A { int a; void f(); virtual void vf1(); virtual void vf2(); };
+struct B { int b; virtual void g(); };
+struct C : B, A { };
+
+void (A::*pa)();
+void (A::*volatile vpa)();
+void (B::*pb)();
+void (C::*pc)();
+
+// CHECK: @pa2 = global { i64, i64 } { i64 ptrtoint (void (%struct.A*)* @_ZN1A1fEv to i64), i64 0 }, align 8
+void (A::*pa2)() = &A::f;
+
+// CHECK:      @pa3 = global { i64, i64 } { i64 1, i64 0 }, align 8
+// CHECK-LP32: @pa3 = global { i32, i32 } { i32 1, i32 0 }, align 4
+void (A::*pa3)() = &A::vf1;
+
+// CHECK:      @pa4 = global { i64, i64 } { i64 9, i64 0 }, align 8
+// CHECK-LP32: @pa4 = global { i32, i32 } { i32 5, i32 0 }, align 4
+void (A::*pa4)() = &A::vf2;
+
+// CHECK: @pc2 = global { i64, i64 } { i64 ptrtoint (void (%struct.A*)* @_ZN1A1fEv to i64), i64 16 }, align 8
+void (C::*pc2)() = &C::f;
+
+// CHECK: @pc3 = global { i64, i64 } { i64 1, i64 0 }, align 8
+void (A::*pc3)() = &A::vf1;
+
+// Tests for test10.
+// CHECK: @_ZN6test101aE = global { i64, i64 } { i64 ptrtoint (void (%"struct.test10::A"*)* @_ZN6test101A3fooEv to i64), i64 0 }, align 8
+// CHECK: @_ZN6test101bE = global { i64, i64 } { i64 ptrtoint (void (%"struct.test10::A"*)* @_ZN6test101A3fooEv to i64), i64 8 }, align 8
+// CHECK: @_ZN6test101cE = global { i64, i64 } { i64 ptrtoint (void (%"struct.test10::A"*)* @_ZN6test101A3fooEv to i64), i64 8 }, align 8
+// CHECK: @_ZN6test101dE = global { i64, i64 } { i64 ptrtoint (void (%"struct.test10::A"*)* @_ZN6test101A3fooEv to i64), i64 16 }, align 8
+// CHECK-LP32: @_ZN6test101aE = global { i32, i32 } { i32 ptrtoint (void (%"struct.test10::A"*)* @_ZN6test101A3fooEv to i32), i32 0 }, align 4
+// CHECK-LP32: @_ZN6test101bE = global { i32, i32 } { i32 ptrtoint (void (%"struct.test10::A"*)* @_ZN6test101A3fooEv to i32), i32 4 }, align 4
+// CHECK-LP32: @_ZN6test101cE = global { i32, i32 } { i32 ptrtoint (void (%"struct.test10::A"*)* @_ZN6test101A3fooEv to i32), i32 4 }, align 4
+// CHECK-LP32: @_ZN6test101dE = global { i32, i32 } { i32 ptrtoint (void (%"struct.test10::A"*)* @_ZN6test101A3fooEv to i32), i32 8 }, align 4
+
+void f() {
+  // CHECK: store { i64, i64 } zeroinitializer, { i64, i64 }* @pa
+  pa = 0;
+
+  // Is this okay?  What are LLVM's volatile semantics for structs?
+  // CHECK: store volatile { i64, i64 } zeroinitializer, { i64, i64 }* @vpa
+  vpa = 0;
+
+  // CHECK: [[TMP:%.*]] = load { i64, i64 }* @pa, align 8
+  // CHECK: [[TMPADJ:%.*]] = extractvalue { i64, i64 } [[TMP]], 1
+  // CHECK: [[ADJ:%.*]] = add nsw i64 [[TMPADJ]], 16
+  // CHECK: [[RES:%.*]] = insertvalue { i64, i64 } [[TMP]], i64 [[ADJ]], 1
+  // CHECK: store { i64, i64 } [[RES]], { i64, i64 }* @pc, align 8
+  pc = pa;
+
+  // CHECK: [[TMP:%.*]] = load { i64, i64 }* @pc, align 8
+  // CHECK: [[TMPADJ:%.*]] = extractvalue { i64, i64 } [[TMP]], 1
+  // CHECK: [[ADJ:%.*]] = sub nsw i64 [[TMPADJ]], 16
+  // CHECK: [[RES:%.*]] = insertvalue { i64, i64 } [[TMP]], i64 [[ADJ]], 1
+  // CHECK: store { i64, i64 } [[RES]], { i64, i64 }* @pa, align 8
+  pa = static_cast<void (A::*)()>(pc);
+}
+
+void f2() {
+  // CHECK:      store { i64, i64 } { i64 ptrtoint (void (%struct.A*)* @_ZN1A1fEv to i64), i64 0 }
+  void (A::*pa2)() = &A::f;
+  
+  // CHECK:      store { i64, i64 } { i64 1, i64 0 }
+  // CHECK-LP32: store { i32, i32 } { i32 1, i32 0 }
+  void (A::*pa3)() = &A::vf1;
+  
+  // CHECK:      store { i64, i64 } { i64 9, i64 0 }
+  // CHECK-LP32: store { i32, i32 } { i32 5, i32 0 }
+  void (A::*pa4)() = &A::vf2;
+}
+
+void f3(A *a, A &ar) {
+  (a->*pa)();
+  (ar.*pa)();
+}
+
+bool f4() {
+  return pa;
+}
+
+// PR5177
+namespace PR5177 {
+  struct A {
+   bool foo(int*) const;
+  } a;
+
+  struct B1 {
+   bool (A::*pmf)(int*) const;
+   const A* pa;
+
+   B1() : pmf(&A::foo), pa(&a) {}
+   bool operator()() const { return (pa->*pmf)(new int); }
+  };
+
+  void bar(B1 b2) { while (b2()) ; }
+}
+
+// PR5138
+namespace PR5138 {
+  struct foo {
+      virtual void bar(foo *);
+  };
+
+  extern "C" {
+    void baz(foo *);
+  }
+  
+  void (foo::*ptr1)(void *) = (void (foo::*)(void *))&foo::bar;
+  void (*ptr2)(void *) = (void (*)(void *))&baz;
+
+  void (foo::*ptr3)(void) = (void (foo::*)(void))&foo::bar;
+}
+
+// PR5593
+namespace PR5593 {
+  struct A { };
+  
+  bool f(void (A::*f)()) {
+    return f && f;
+  }
+}
+
+namespace PR5718 {
+  struct A { };
+  
+  bool f(void (A::*f)(), void (A::*g)()) {
+    return f == g;
+  }
+}
+
+namespace BoolMemberPointer {
+  struct A { };
+  
+  bool f(void (A::*f)()) {
+    return !f;
+  }
+
+  bool g(void (A::*f)()) {
+    if (!!f)
+      return true;
+    return false;
+  }
+}
+
+// PR5940
+namespace PR5940 {
+  class foo {
+  public:
+    virtual void baz(void);
+  };
+
+  void foo::baz(void) {
+       void (foo::*ptr)(void) = &foo::baz;
+  }
+}
+
+namespace MemberPointerImpCast {
+  struct A {
+    int x;
+  };
+  struct B : public A {
+  };
+  void f(B* obj, void (A::*method)()) {
+    (obj->*method)();
+  }
+}
+
+// PR6258
+namespace PR6258 {
+
+  struct A {
+    void f(bool);
+  };
+
+  void (A::*pf)(bool) = &A::f;
+
+  void f() {
+    void (A::*pf)(bool) = &A::f;
+  }
+}
+
+// PR7027 
+namespace PR7027 {
+  struct X { void test( ); };
+  void testX() { &X::test; }
+}
+
+namespace test7 {
+  struct A { void foo(); virtual void vfoo(); };
+  struct B { void foo(); virtual void vfoo(); };
+  struct C : A, B { void foo(); virtual void vfoo(); };
+
+  // CHECK-ARM: @_ZN5test74ptr0E = global {{.*}} { i32 ptrtoint ({{.*}}* @_ZN5test71A3fooEv to i32), i32 0 }
+  // CHECK-ARM: @_ZN5test74ptr1E = global {{.*}} { i32 ptrtoint ({{.*}}* @_ZN5test71B3fooEv to i32), i32 8 }
+  // CHECK-ARM: @_ZN5test74ptr2E = global {{.*}} { i32 ptrtoint ({{.*}}* @_ZN5test71C3fooEv to i32), i32 0 }
+  // CHECK-ARM: @_ZN5test74ptr3E = global {{.*}} { i32 0, i32 1 }
+  // CHECK-ARM: @_ZN5test74ptr4E = global {{.*}} { i32 0, i32 9 }
+  // CHECK-ARM: @_ZN5test74ptr5E = global {{.*}} { i32 0, i32 1 }
+  void (C::*ptr0)() = &A::foo;
+  void (C::*ptr1)() = &B::foo;
+  void (C::*ptr2)() = &C::foo;
+  void (C::*ptr3)() = &A::vfoo;
+  void (C::*ptr4)() = &B::vfoo;
+  void (C::*ptr5)() = &C::vfoo;
+}
+
+namespace test8 {
+  struct X { };
+  typedef int (X::*pmf)(int);
+  
+  // CHECK: {{define.*_ZN5test81fEv}}
+  pmf f() {
+    // CHECK: {{ret.*zeroinitializer}}
+    return pmf();
+  }
+}
+
+namespace test9 {
+  struct A {
+    void foo();
+  };
+  struct B : A {
+    void foo();
+  };
+
+  typedef void (A::*fooptr)();
+
+  struct S {
+    fooptr p;
+  };
+
+  // CHECK:    define void @_ZN5test94testEv(
+  // CHECK:      alloca i32
+  // CHECK-NEXT: ret void
+  void test() {
+    int x;
+    static S array[] = { (fooptr) &B::foo };
+  }
+}
+
+// rdar://problem/10815683 - Verify that we can emit reinterprets of
+// member pointers as constant initializers.  For added trickiness,
+// we also add some non-trivial adjustments.
+namespace test10 {
+  struct A {
+    int nonEmpty;
+    void foo();
+  };
+  struct B : public A {
+    virtual void requireNonZeroAdjustment();
+  };
+  struct C {
+    int nonEmpty;
+  };
+  struct D : public C {
+    virtual void requireNonZeroAdjustment();
+  };
+
+  // Non-ARM tests at top of file.
+  void (A::*a)() = &A::foo;
+  void (B::*b)() = (void (B::*)()) &A::foo;
+  void (C::*c)() = (void (C::*)()) (void (B::*)()) &A::foo;
+  void (D::*d)() = (void (C::*)()) (void (B::*)()) &A::foo;
+}
+// It's not that the offsets are doubled on ARM, it's that they're left-shifted by 1.
+// CHECK-ARM: @_ZN6test101aE = global { i32, i32 } { i32 ptrtoint (void (%"struct.test10::A"*)* @_ZN6test101A3fooEv to i32), i32 0 }, align 4
+// CHECK-ARM: @_ZN6test101bE = global { i32, i32 } { i32 ptrtoint (void (%"struct.test10::A"*)* @_ZN6test101A3fooEv to i32), i32 8 }, align 4
+// CHECK-ARM: @_ZN6test101cE = global { i32, i32 } { i32 ptrtoint (void (%"struct.test10::A"*)* @_ZN6test101A3fooEv to i32), i32 8 }, align 4
+// CHECK-ARM: @_ZN6test101dE = global { i32, i32 } { i32 ptrtoint (void (%"struct.test10::A"*)* @_ZN6test101A3fooEv to i32), i32 16 }, align 4