| 1 | // RUN: %clang_cc1 %s -fno-rtti -triple=i686-pc-win32 -emit-llvm -o - | FileCheck --check-prefix=CHECK32 %s |
| 2 | // RUN: %clang_cc1 %s -fno-rtti -triple=x86_64-pc-win32 -emit-llvm -o - | FileCheck --check-prefix=CHECK64 %s |
| 3 | |
| 4 | namespace byval_thunk { |
| 5 | struct Agg { |
| 6 | Agg(); |
| 7 | Agg(const Agg &); |
| 8 | ~Agg(); |
| 9 | int x; |
| 10 | }; |
| 11 | |
| 12 | struct A { virtual void foo(Agg x); }; |
| 13 | struct B { virtual void foo(Agg x); }; |
| 14 | struct C : A, B { C(); virtual void foo(Agg x); }; |
| 15 | C::C() {} // force emission |
| 16 | |
| 17 | // CHECK32-LABEL: define linkonce_odr dso_local x86_thiscallcc void @"?foo@C@byval_thunk@@W3AEXUAgg@2@@Z" |
| 18 | // CHECK32: (%"struct.byval_thunk::C"* %this, <{ %"struct.byval_thunk::Agg" }>* inalloca) |
| 19 | // CHECK32: getelementptr i8, i8* %{{.*}}, i32 -4 |
| 20 | // CHECK32: musttail call x86_thiscallcc void @"?foo@C@byval_thunk@@UAEXUAgg@2@@Z" |
| 21 | // CHECK32: (%"struct.byval_thunk::C"* %{{.*}}, <{ %"struct.byval_thunk::Agg" }>* inalloca %0) |
| 22 | // CHECK32-NEXT: ret void |
| 23 | |
| 24 | // CHECK64-LABEL: define linkonce_odr dso_local void @"?foo@C@byval_thunk@@W7EAAXUAgg@2@@Z" |
| 25 | // CHECK64: (%"struct.byval_thunk::C"* %this, %"struct.byval_thunk::Agg"* %x) |
| 26 | // CHECK64: getelementptr i8, i8* %{{.*}}, i32 -8 |
| 27 | // CHECK64: call void @"?foo@C@byval_thunk@@UEAAXUAgg@2@@Z" |
| 28 | // CHECK64: (%"struct.byval_thunk::C"* %{{.*}}, %"struct.byval_thunk::Agg"* %x) |
| 29 | // CHECK64-NOT: call |
| 30 | // CHECK64: ret void |
| 31 | } |
| 32 | |
| 33 | namespace stdcall_thunk { |
| 34 | struct Agg { |
| 35 | Agg(); |
| 36 | Agg(const Agg &); |
| 37 | ~Agg(); |
| 38 | int x; |
| 39 | }; |
| 40 | |
| 41 | struct A { virtual void __stdcall foo(Agg x); }; |
| 42 | struct B { virtual void __stdcall foo(Agg x); }; |
| 43 | struct C : A, B { C(); virtual void __stdcall foo(Agg x); }; |
| 44 | C::C() {} // force emission |
| 45 | |
| 46 | // CHECK32-LABEL: define linkonce_odr dso_local x86_stdcallcc void @"?foo@C@stdcall_thunk@@W3AGXUAgg@2@@Z" |
| 47 | // CHECK32: (<{ %"struct.stdcall_thunk::C"*, %"struct.stdcall_thunk::Agg" }>* inalloca) |
| 48 | // CHECK32: %[[this_slot:[^ ]*]] = getelementptr inbounds <{ %"struct.stdcall_thunk::C"*, %"struct.stdcall_thunk::Agg" }>, <{ %"struct.stdcall_thunk::C"*, %"struct.stdcall_thunk::Agg" }>* %0, i32 0, i32 0 |
| 49 | // CHECK32: load %"struct.stdcall_thunk::C"*, %"struct.stdcall_thunk::C"** %[[this_slot]] |
| 50 | // CHECK32: getelementptr i8, i8* %{{.*}}, i32 -4 |
| 51 | // CHECK32: store %"struct.stdcall_thunk::C"* %{{.*}}, %"struct.stdcall_thunk::C"** %[[this_slot]] |
| 52 | // CHECK32: musttail call x86_stdcallcc void @"?foo@C@stdcall_thunk@@UAGXUAgg@2@@Z" |
| 53 | // CHECK32: (<{ %"struct.stdcall_thunk::C"*, %"struct.stdcall_thunk::Agg" }>* inalloca %0) |
| 54 | // CHECK32-NEXT: ret void |
| 55 | |
| 56 | // CHECK64-LABEL: define linkonce_odr dso_local void @"?foo@C@stdcall_thunk@@W7EAAXUAgg@2@@Z" |
| 57 | // CHECK64: (%"struct.stdcall_thunk::C"* %this, %"struct.stdcall_thunk::Agg"* %x) |
| 58 | // CHECK64: getelementptr i8, i8* %{{.*}}, i32 -8 |
| 59 | // CHECK64: call void @"?foo@C@stdcall_thunk@@UEAAXUAgg@2@@Z" |
| 60 | // CHECK64: (%"struct.stdcall_thunk::C"* %{{.*}}, %"struct.stdcall_thunk::Agg"* %x) |
| 61 | // CHECK64-NOT: call |
| 62 | // CHECK64: ret void |
| 63 | } |
| 64 | |
| 65 | namespace sret_thunk { |
| 66 | struct Agg { |
| 67 | Agg(); |
| 68 | Agg(const Agg &); |
| 69 | ~Agg(); |
| 70 | int x; |
| 71 | }; |
| 72 | |
| 73 | struct A { virtual Agg __cdecl foo(Agg x); }; |
| 74 | struct B { virtual Agg __cdecl foo(Agg x); }; |
| 75 | struct C : A, B { C(); virtual Agg __cdecl foo(Agg x); }; |
| 76 | C::C() {} // force emission |
| 77 | |
| 78 | // CHECK32-LABEL: define linkonce_odr dso_local %"struct.sret_thunk::Agg"* @"?foo@C@sret_thunk@@W3AA?AUAgg@2@U32@@Z" |
| 79 | // CHECK32: (<{ %"struct.sret_thunk::C"*, %"struct.sret_thunk::Agg"*, %"struct.sret_thunk::Agg" }>* inalloca) |
| 80 | // CHECK32: %[[this_slot:[^ ]*]] = getelementptr inbounds <{ %"struct.sret_thunk::C"*, %"struct.sret_thunk::Agg"*, %"struct.sret_thunk::Agg" }>, <{ %"struct.sret_thunk::C"*, %"struct.sret_thunk::Agg"*, %"struct.sret_thunk::Agg" }>* %0, i32 0, i32 0 |
| 81 | // CHECK32: load %"struct.sret_thunk::C"*, %"struct.sret_thunk::C"** %[[this_slot]] |
| 82 | // CHECK32: getelementptr i8, i8* %{{.*}}, i32 -4 |
| 83 | // CHECK32: store %"struct.sret_thunk::C"* %{{.*}}, %"struct.sret_thunk::C"** %[[this_slot]] |
| 84 | // CHECK32: %[[rv:[^ ]*]] = musttail call %"struct.sret_thunk::Agg"* @"?foo@C@sret_thunk@@UAA?AUAgg@2@U32@@Z" |
| 85 | // CHECK32: (<{ %"struct.sret_thunk::C"*, %"struct.sret_thunk::Agg"*, %"struct.sret_thunk::Agg" }>* inalloca %0) |
| 86 | // CHECK32-NEXT: ret %"struct.sret_thunk::Agg"* %[[rv]] |
| 87 | |
| 88 | // CHECK64-LABEL: define linkonce_odr dso_local void @"?foo@C@sret_thunk@@W7EAA?AUAgg@2@U32@@Z" |
| 89 | // CHECK64: (%"struct.sret_thunk::C"* %this, %"struct.sret_thunk::Agg"* noalias sret %agg.result, %"struct.sret_thunk::Agg"* %x) |
| 90 | // CHECK64: getelementptr i8, i8* %{{.*}}, i32 -8 |
| 91 | // CHECK64: call void @"?foo@C@sret_thunk@@UEAA?AUAgg@2@U32@@Z" |
| 92 | // CHECK64: (%"struct.sret_thunk::C"* %{{.*}}, %"struct.sret_thunk::Agg"* sret %agg.result, %"struct.sret_thunk::Agg"* %x) |
| 93 | // CHECK64-NOT: call |
| 94 | // CHECK64: ret void |
| 95 | } |
| 96 | |
| 97 | #if 0 |
| 98 | // FIXME: When we extend LLVM IR to allow forwarding of varargs through musttail |
| 99 | // calls, use this test. |
| 100 | namespace variadic_thunk { |
| 101 | struct Agg { |
| 102 | Agg(); |
| 103 | Agg(const Agg &); |
| 104 | ~Agg(); |
| 105 | int x; |
| 106 | }; |
| 107 | |
| 108 | struct A { virtual void foo(Agg x, ...); }; |
| 109 | struct B { virtual void foo(Agg x, ...); }; |
| 110 | struct C : A, B { C(); virtual void foo(Agg x, ...); }; |
| 111 | C::C() {} // force emission |
| 112 | } |
| 113 | #endif |
| 114 | |