| 1 | // RUN: %clang_cc1 %s -I%S -triple=x86_64-apple-darwin10 -emit-llvm -O3 -o - | FileCheck %s |
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| 2 | |
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| 3 | // CHECK: %"struct.rdar20621065::B" = type { float, float } |
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| 4 | |
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| 5 | struct Empty { }; |
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| 6 | |
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| 7 | struct A { |
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| 8 | explicit A(unsigned a = 0xffffffff) : a(a) { } |
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| 9 | |
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| 10 | unsigned a; |
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| 11 | }; |
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| 12 | |
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| 13 | struct B : A, Empty { |
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| 14 | B() : A(), Empty() { } |
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| 15 | }; |
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| 16 | |
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| 17 | struct C : A, Empty { |
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| 18 | C() : A(), Empty() { } |
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| 19 | C(const C& other) : A(0x12345678), Empty(other) { } |
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| 20 | }; |
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| 21 | |
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| 22 | struct D : A, Empty { |
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| 23 | D& operator=(const D& other) { |
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| 24 | a = 0x87654321; |
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| 25 | Empty::operator=(other); |
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| 26 | |
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| 27 | return *this; |
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| 28 | } |
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| 29 | }; |
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| 30 | |
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| 31 | #define CHECK(x) if (!(x)) return __LINE__ |
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| 32 | |
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| 33 | // PR7012 |
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| 34 | // CHECK-LABEL: define i32 @_Z1fv() |
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| 35 | int f() { |
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| 36 | B b1; |
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| 37 | |
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| 38 | // Check that A::a is not overwritten by the Empty default constructor. |
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| 39 | CHECK(b1.a == 0xffffffff); |
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| 40 | |
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| 41 | C c1; |
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| 42 | C c2(c1); |
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| 43 | |
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| 44 | // Check that A::a has the value set in the C::C copy constructor. |
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| 45 | CHECK(c2.a == 0x12345678); |
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| 46 | |
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| 47 | D d1, d2; |
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| 48 | d2 = d1; |
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| 49 | |
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| 50 | // Check that A::as has the value set in the D copy assignment operator. |
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| 51 | CHECK(d2.a == 0x87654321); |
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| 52 | |
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| 53 | // Success! |
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| 54 | // CHECK: ret i32 0 |
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| 55 | return 0; |
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| 56 | } |
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| 57 | |
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| 58 | namespace PR8796 { |
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| 59 | struct FreeCell { |
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| 60 | }; |
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| 61 | union ThingOrCell { |
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| 62 | FreeCell t; |
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| 63 | FreeCell cell; |
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| 64 | }; |
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| 65 | struct Things { |
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| 66 | ThingOrCell things; |
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| 67 | }; |
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| 68 | Things x; |
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| 69 | } |
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| 70 | |
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| 71 | #ifdef HARNESS |
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| 72 | extern "C" void printf(const char *, ...); |
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| 73 | |
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| 74 | int main() { |
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| 75 | int result = f(); |
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| 76 | |
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| 77 | if (result == 0) |
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| 78 | printf("success!\n"); |
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| 79 | else |
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| 80 | printf("test on line %d failed!\n", result); |
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| 81 | |
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| 82 | return result; |
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| 83 | } |
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| 84 | #endif |
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| 85 | |
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| 86 | namespace rdar20621065 { |
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| 87 | struct A { |
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| 88 | float array[0]; |
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| 89 | }; |
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| 90 | |
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| 91 | struct B : A { |
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| 92 | float left; |
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| 93 | float right; |
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| 94 | }; |
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| 95 | |
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| 96 | // Type checked at the top of the file. |
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| 97 | B b; |
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| 98 | }; |
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| 99 | |
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| 100 | // This test used to crash when CGRecordLayout::getNonVirtualBaseLLVMFieldNo was called. |
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| 101 | namespace record_layout { |
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| 102 | struct X0 { |
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| 103 | int x[0]; |
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| 104 | }; |
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| 105 | |
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| 106 | template<typename> |
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| 107 | struct X2 : X0 { |
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| 108 | }; |
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| 109 | |
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| 110 | template<typename> |
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| 111 | struct X3 : X2<int> { |
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| 112 | X3() : X2<int>() {} |
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| 113 | }; |
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| 114 | |
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| 115 | |
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| 116 | void test0() { |
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| 117 | X3<int>(); |
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| 118 | } |
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| 119 | } |
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| 120 | |
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