| // RUN: %clang_cc1 %s -fno-rtti -triple=i686-pc-win32 -emit-llvm -o - | FileCheck --check-prefix=CHECK32 %s |
| // RUN: %clang_cc1 %s -fno-rtti -triple=x86_64-pc-win32 -emit-llvm -o - | FileCheck --check-prefix=CHECK64 %s |
| |
| namespace byval_thunk { |
| struct Agg { |
| Agg(); |
| Agg(const Agg &); |
| ~Agg(); |
| int x; |
| }; |
| |
| struct A { virtual void foo(Agg x); }; |
| struct B { virtual void foo(Agg x); }; |
| struct C : A, B { C(); virtual void foo(Agg x); }; |
| C::C() {} // force emission |
| |
| // CHECK32-LABEL: define linkonce_odr dso_local x86_thiscallcc void @"?foo@C@byval_thunk@@W3AEXUAgg@2@@Z" |
| // CHECK32: (ptr noundef %this, ptr inalloca(<{ %"struct.byval_thunk::Agg" }>) %0) |
| // CHECK32: getelementptr i8, ptr %{{.*}}, i32 -4 |
| // CHECK32: musttail call x86_thiscallcc void @"?foo@C@byval_thunk@@UAEXUAgg@2@@Z" |
| // CHECK32: (ptr noundef %{{.*}}, ptr inalloca(<{ %"struct.byval_thunk::Agg" }>) %0) |
| // CHECK32-NEXT: ret void |
| |
| // CHECK64-LABEL: define linkonce_odr dso_local void @"?foo@C@byval_thunk@@W7EAAXUAgg@2@@Z" |
| // CHECK64: (ptr noundef %this, ptr noundef %x) |
| // CHECK64: getelementptr i8, ptr %{{.*}}, i32 -8 |
| // CHECK64: call void @"?foo@C@byval_thunk@@UEAAXUAgg@2@@Z" |
| // CHECK64: (ptr {{[^,]*}} %{{.*}}, ptr noundef %x) |
| // CHECK64-NOT: call |
| // CHECK64: ret void |
| } |
| |
| namespace stdcall_thunk { |
| struct Agg { |
| Agg(); |
| Agg(const Agg &); |
| ~Agg(); |
| int x; |
| }; |
| |
| struct A { virtual void __stdcall foo(Agg x); }; |
| struct B { virtual void __stdcall foo(Agg x); }; |
| struct C : A, B { C(); virtual void __stdcall foo(Agg x); }; |
| C::C() {} // force emission |
| |
| // CHECK32-LABEL: define linkonce_odr dso_local x86_stdcallcc void @"?foo@C@stdcall_thunk@@W3AGXUAgg@2@@Z" |
| // CHECK32: (ptr inalloca(<{ ptr, %"struct.stdcall_thunk::Agg" }>) %0) |
| // CHECK32: %[[this_slot:[^ ]*]] = getelementptr inbounds <{ ptr, %"struct.stdcall_thunk::Agg" }>, ptr %0, i32 0, i32 0 |
| // CHECK32: load ptr, ptr %[[this_slot]] |
| // CHECK32: getelementptr i8, ptr %{{.*}}, i32 -4 |
| // CHECK32: store ptr %{{.*}}, ptr %[[this_slot]] |
| // CHECK32: musttail call x86_stdcallcc void @"?foo@C@stdcall_thunk@@UAGXUAgg@2@@Z" |
| // CHECK32: (ptr inalloca(<{ ptr, %"struct.stdcall_thunk::Agg" }>) %0) |
| // CHECK32-NEXT: ret void |
| |
| // CHECK64-LABEL: define linkonce_odr dso_local void @"?foo@C@stdcall_thunk@@W7EAAXUAgg@2@@Z" |
| // CHECK64: (ptr noundef %this, ptr noundef %x) |
| // CHECK64: getelementptr i8, ptr %{{.*}}, i32 -8 |
| // CHECK64: call void @"?foo@C@stdcall_thunk@@UEAAXUAgg@2@@Z" |
| // CHECK64: (ptr {{[^,]*}} %{{.*}}, ptr noundef %x) |
| // CHECK64-NOT: call |
| // CHECK64: ret void |
| } |
| |
| namespace sret_thunk { |
| struct Agg { |
| Agg(); |
| Agg(const Agg &); |
| ~Agg(); |
| int x; |
| }; |
| |
| struct A { virtual Agg __cdecl foo(Agg x); }; |
| struct B { virtual Agg __cdecl foo(Agg x); }; |
| struct C : A, B { C(); virtual Agg __cdecl foo(Agg x); }; |
| C::C() {} // force emission |
| |
| // CHECK32-LABEL: define linkonce_odr dso_local ptr @"?foo@C@sret_thunk@@W3AA?AUAgg@2@U32@@Z" |
| // CHECK32: (ptr inalloca(<{ ptr, ptr, %"struct.sret_thunk::Agg" }>) %0) |
| // CHECK32: %[[this_slot:[^ ]*]] = getelementptr inbounds <{ ptr, ptr, %"struct.sret_thunk::Agg" }>, ptr %0, i32 0, i32 0 |
| // CHECK32: load ptr, ptr %[[this_slot]] |
| // CHECK32: getelementptr i8, ptr %{{.*}}, i32 -4 |
| // CHECK32: store ptr %{{.*}}, ptr %[[this_slot]] |
| // CHECK32: %[[rv:[^ ]*]] = musttail call ptr @"?foo@C@sret_thunk@@UAA?AUAgg@2@U32@@Z" |
| // CHECK32: (ptr inalloca(<{ ptr, ptr, %"struct.sret_thunk::Agg" }>) %0) |
| // CHECK32-NEXT: ret ptr %[[rv]] |
| |
| // CHECK64-LABEL: define linkonce_odr dso_local void @"?foo@C@sret_thunk@@W7EAA?AUAgg@2@U32@@Z" |
| // CHECK64: (ptr noundef %this, ptr dead_on_unwind noalias writable sret(%"struct.sret_thunk::Agg") align 4 %agg.result, ptr noundef %x) |
| // CHECK64: getelementptr i8, ptr %{{.*}}, i32 -8 |
| // CHECK64: call void @"?foo@C@sret_thunk@@UEAA?AUAgg@2@U32@@Z" |
| // CHECK64: (ptr {{[^,]*}} %{{.*}}, ptr dead_on_unwind writable sret(%"struct.sret_thunk::Agg") align 4 %agg.result, ptr noundef %x) |
| // CHECK64-NOT: call |
| // CHECK64: ret void |
| } |
| |
| #if 0 |
| // FIXME: When we extend LLVM IR to allow forwarding of varargs through musttail |
| // calls, use this test. |
| namespace variadic_thunk { |
| struct Agg { |
| Agg(); |
| Agg(const Agg &); |
| ~Agg(); |
| int x; |
| }; |
| |
| struct A { virtual void foo(Agg x, ...); }; |
| struct B { virtual void foo(Agg x, ...); }; |
| struct C : A, B { C(); virtual void foo(Agg x, ...); }; |
| C::C() {} // force emission |
| } |
| #endif |