1 // RUN: %clang_cc1 %s -I%S -triple=x86_64-apple-darwin10 -emit-llvm -O3 -o - | FileCheck %s 2 3 struct Empty { }; 4 5 struct A { 6 explicit A(unsigned a = 0xffffffff) : a(a) { } 7 8 unsigned a; 9 }; 10 11 struct B : A, Empty { 12 B() : A(), Empty() { } 13 }; 14 15 struct C : A, Empty { 16 C() : A(), Empty() { } 17 C(const C& other) : A(0x12345678), Empty(other) { } 18 }; 19 20 struct D : A, Empty { 21 D& operator=(const D& other) { 22 a = 0x87654321; 23 Empty::operator=(other); 24 25 return *this; 26 } 27 }; 28 29 #define CHECK(x) if (!(x)) return __LINE__ 30 31 // PR7012 32 // CHECK: define i32 @_Z1fv() 33 int f() { 34 B b1; 35 36 // Check that A::a is not overwritten by the Empty default constructor. 37 CHECK(b1.a == 0xffffffff); 38 39 C c1; 40 C c2(c1); 41 42 // Check that A::a has the value set in the C::C copy constructor. 43 CHECK(c2.a == 0x12345678); 44 45 D d1, d2; 46 d2 = d1; 47 48 // Check that A::as has the value set in the D copy assignment operator. 49 CHECK(d2.a == 0x87654321); 50 51 // Success! 52 // CHECK: ret i32 0 53 return 0; 54 } 55 56 namespace PR8796 { 57 struct FreeCell { 58 }; 59 union ThingOrCell { 60 FreeCell t; 61 FreeCell cell; 62 }; 63 struct Things { 64 ThingOrCell things; 65 }; 66 Things x; 67 } 68 69 #ifdef HARNESS 70 extern "C" void printf(const char *, ...); 71 72 int main() { 73 int result = f(); 74 75 if (result == 0) 76 printf("success!\n"); 77 else 78 printf("test on line %d failed!\n", result); 79 80 return result; 81 } 82 #endif 83
