Anders Carlsson | 560bf12 | 2010-12-05 00:08:52 +0000 | [diff] [blame] | 1 | // RUN: %clang_cc1 %s -triple x86_64-apple-darwin10 -emit-llvm -o - | FileCheck %s |
Anders Carlsson | 696798f | 2009-07-27 17:10:54 +0000 | [diff] [blame] | 2 | |
Anders Carlsson | 68e3013 | 2010-05-05 05:47:36 +0000 | [diff] [blame] | 3 | // An extra byte should be allocated for an empty class. |
Anders Carlsson | 560bf12 | 2010-12-05 00:08:52 +0000 | [diff] [blame] | 4 | namespace Test1 { |
| 5 | // CHECK: %"struct.Test1::A" = type { i8 } |
| 6 | struct A { } *a; |
| 7 | } |
Anders Carlsson | c245682 | 2009-12-08 01:24:23 +0000 | [diff] [blame] | 8 | |
Anders Carlsson | 560bf12 | 2010-12-05 00:08:52 +0000 | [diff] [blame] | 9 | namespace Test2 { |
| 10 | // No need to add tail padding here. |
| 11 | // CHECK: %"struct.Test2::A" = type { i8*, i32 } |
| 12 | struct A { void *a; int b; } *a; |
| 13 | } |
Anders Carlsson | 4b3e5be | 2009-12-16 17:27:20 +0000 | [diff] [blame] | 14 | |
Anders Carlsson | 560bf12 | 2010-12-05 00:08:52 +0000 | [diff] [blame] | 15 | namespace Test3 { |
| 16 | // C should have a vtable pointer. |
| 17 | // CHECK: %"struct.Test3::A" = type { i32 (...)**, i32 } |
| 18 | struct A { virtual void f(); int a; } *a; |
| 19 | } |
Anders Carlsson | eb9d81d | 2011-04-17 21:56:13 +0000 | [diff] [blame] | 20 | |
| 21 | namespace Test4 { |
| 22 | // Test from PR5589. |
Anders Carlsson | eb9d81d | 2011-04-17 21:56:13 +0000 | [diff] [blame] | 23 | // CHECK: %"struct.Test4::B" = type { %"struct.Test4::A", i16, double } |
Chris Lattner | 9cbe4f0 | 2011-07-09 17:41:47 +0000 | [diff] [blame] | 24 | // CHECK: %"struct.Test4::A" = type { i32, i8, float } |
Anders Carlsson | eb9d81d | 2011-04-17 21:56:13 +0000 | [diff] [blame] | 25 | struct A { |
| 26 | int a; |
| 27 | char c; |
| 28 | float b; |
| 29 | }; |
| 30 | struct B : public A { |
| 31 | short d; |
| 32 | double e; |
| 33 | } *b; |
| 34 | } |
| 35 | |
| 36 | namespace Test5 { |
| 37 | struct A { |
| 38 | virtual void f(); |
| 39 | char a; |
| 40 | }; |
| 41 | |
Anders Carlsson | f54d81f | 2011-04-17 21:57:29 +0000 | [diff] [blame] | 42 | // CHECK: %"struct.Test5::B" = type { [9 x i8], i8, i8, [5 x i8] } |
Anders Carlsson | eb9d81d | 2011-04-17 21:56:13 +0000 | [diff] [blame] | 43 | struct B : A { |
| 44 | char b : 1; |
| 45 | char c; |
| 46 | } *b; |
| 47 | } |
John McCall | 6595935 | 2011-10-07 02:39:22 +0000 | [diff] [blame] | 48 | |
| 49 | // PR10912: don't crash |
| 50 | namespace Test6 { |
| 51 | template <typename T> class A { |
| 52 | // If T is complete, IR-gen will want to translate it recursively |
| 53 | // when translating T*. |
| 54 | T *foo; |
| 55 | }; |
| 56 | |
| 57 | class B; |
| 58 | |
| 59 | // This causes IR-gen to have an incomplete translation of A<B> |
| 60 | // sitting around. |
| 61 | A<B> *a; |
| 62 | |
| 63 | class C {}; |
| 64 | class B : public C { |
| 65 | // This forces Sema to instantiate A<B>, which triggers a callback |
| 66 | // to IR-gen. Because of the previous, incomplete translation, |
| 67 | // IR-gen actually cares, and it immediately tries to complete |
| 68 | // A<B>'s IR type. That, in turn, causes the translation of B*. |
| 69 | // B isn't complete yet, but it has a definition, and if we try to |
| 70 | // compute a record layout for that definition then we'll really |
| 71 | // regret it later. |
| 72 | A<B> a; |
| 73 | }; |
| 74 | |
| 75 | // The derived class E and empty base class C are required to |
| 76 | // provoke the original assertion. |
| 77 | class E : public B {}; |
| 78 | E *e; |
| 79 | } |
Eli Friedman | c8f11e9 | 2012-04-27 02:34:46 +0000 | [diff] [blame] | 80 | |
| 81 | // <rdar://problem/11324125>: Make sure this doesn't crash. (It's okay |
| 82 | // if we start rejecting it at some point.) |
| 83 | namespace Test7 { |
| 84 | #pragma pack (1) |
| 85 | class A {}; |
| 86 | // CHECK: %"class.Test7::B" = type <{ i32 (...)**, %"class.Test7::A" }> |
| 87 | class B { |
| 88 | virtual ~B(); |
| 89 | A a; |
| 90 | }; |
| 91 | B* b; |
| 92 | #pragma pack () |
| 93 | } |