| // RUN: %clang_cc1 -std=c++11 -fno-rtti -emit-llvm -triple=i386-pc-win32 %s -o - | FileCheck %s --check-prefix=CHECK32 |
| // RUN: %clang_cc1 -std=c++11 -fno-rtti -emit-llvm -triple=x86_64-pc-win32 %s -o - | FileCheck %s --check-prefix=CHECK64 |
| |
| struct S { |
| int x, y, z; |
| }; |
| |
| // U is not trivially copyable, and requires inalloca to pass by value. |
| struct U { |
| int u; |
| U(); |
| ~U(); |
| U(const U &); |
| }; |
| |
| struct B; |
| |
| struct C { |
| virtual void foo(); |
| virtual int bar(int, double); |
| virtual S baz(int); |
| virtual S qux(U); |
| virtual void thud(...); |
| virtual void (B::*plugh())(); |
| }; |
| |
| namespace { |
| struct D { |
| virtual void foo(); |
| }; |
| } |
| |
| void f() { |
| void (C::*ptr)(); |
| ptr = &C::foo; |
| ptr = &C::foo; // Don't crash trying to define the thunk twice :) |
| |
| int (C::*ptr2)(int, double); |
| ptr2 = &C::bar; |
| |
| S (C::*ptr3)(int); |
| ptr3 = &C::baz; |
| |
| void (D::*ptr4)(); |
| ptr4 = &D::foo; |
| |
| S (C::*ptr5)(U); |
| ptr5 = &C::qux; |
| |
| void (C::*ptr6)(...); |
| ptr6 = &C::thud; |
| |
| auto ptr7 = &C::plugh; |
| |
| |
| // CHECK32-LABEL: define dso_local void @"?f@@YAXXZ"() |
| // CHECK32: store ptr @"??_9C@@$BA@AE", ptr %ptr |
| // CHECK32: store ptr @"??_9C@@$B3AE", ptr %ptr2 |
| // CHECK32: store ptr @"??_9C@@$B7AE", ptr %ptr3 |
| // CHECK32: store ptr @"??_9D@?A0x{{[^@]*}}@@$BA@AE", ptr %ptr4 |
| // CHECK32: } |
| // |
| // CHECK64-LABEL: define dso_local void @"?f@@YAXXZ"() |
| // CHECK64: store ptr @"??_9C@@$BA@AA", ptr %ptr |
| // CHECK64: store ptr @"??_9C@@$B7AA", ptr %ptr2 |
| // CHECK64: store ptr @"??_9C@@$BBA@AA", ptr %ptr3 |
| // CHECK64: store ptr @"??_9D@?A0x{{[^@]*}}@@$BA@AA", ptr %ptr |
| // CHECK64: } |
| } |
| |
| |
| // Thunk for calling the 1st virtual function in C with no parameters. |
| // CHECK32-LABEL: define linkonce_odr x86_thiscallcc void @"??_9C@@$BA@AE"(ptr noundef %this, ...) |
| // CHECK32: #[[ATTR:[0-9]+]] |
| // CHECK32-NOT: unnamed_addr |
| // CHECK32: comdat |
| // CHECK32: [[VPTR:%.*]] = getelementptr inbounds ptr, ptr %{{.*}}, i64 0 |
| // CHECK32: [[CALLEE:%.*]] = load ptr, ptr [[VPTR]] |
| // CHECK32: musttail call x86_thiscallcc void (ptr, ...) [[CALLEE]](ptr noundef %{{.*}}, ...) |
| // CHECK32-NEXT: ret void |
| // CHECK32: } |
| // |
| // CHECK64-LABEL: define linkonce_odr void @"??_9C@@$BA@AA"(ptr noundef %this, ...) |
| // CHECK64: #[[ATTR:[0-9]+]] |
| // CHECK64-NOT: unnamed_addr |
| // CHECK64: comdat |
| // CHECK64: [[VPTR:%.*]] = getelementptr inbounds ptr, ptr %{{.*}}, i64 0 |
| // CHECK64: [[CALLEE:%.*]] = load ptr, ptr [[VPTR]] |
| // CHECK64: musttail call void (ptr, ...) [[CALLEE]](ptr noundef %{{.*}}, ...) |
| // CHECK64-NEXT: ret void |
| // CHECK64: } |
| |
| // Thunk for calling the 2nd virtual function in C, taking int and double as parameters, returning int. |
| // CHECK32-LABEL: define linkonce_odr x86_thiscallcc void @"??_9C@@$B3AE"(ptr noundef %this, ...) |
| // CHECK32: #[[ATTR]] comdat |
| // CHECK32: [[VPTR:%.*]] = getelementptr inbounds ptr, ptr %{{.*}}, i64 1 |
| // CHECK32: [[CALLEE:%.*]] = load ptr, ptr [[VPTR]] |
| // CHECK32: musttail call x86_thiscallcc void (ptr, ...) [[CALLEE]](ptr noundef %{{.*}}, ...) |
| // CHECK32-NEXT: ret void |
| // CHECK32: } |
| // |
| // CHECK64-LABEL: define linkonce_odr void @"??_9C@@$B7AA"(ptr noundef %this, ...) |
| // CHECK64: #[[ATTR]] comdat |
| // CHECK64: [[VPTR:%.*]] = getelementptr inbounds ptr, ptr %{{.*}}, i64 1 |
| // CHECK64: [[CALLEE:%.*]] = load ptr, ptr [[VPTR]] |
| // CHECK64: musttail call void (ptr, ...) [[CALLEE]](ptr noundef %{{.*}}, ...) |
| // CHECK64-NEXT: ret void |
| // CHECK64: } |
| |
| // Thunk for calling the 3rd virtual function in C, taking an int parameter, returning a struct. |
| // CHECK32-LABEL: define linkonce_odr x86_thiscallcc void @"??_9C@@$B7AE"(ptr noundef %this, ...) |
| // CHECK32: #[[ATTR]] comdat |
| // CHECK32: [[VPTR:%.*]] = getelementptr inbounds ptr, ptr %{{.*}}, i64 2 |
| // CHECK32: [[CALLEE:%.*]] = load ptr, ptr [[VPTR]] |
| // CHECK32: musttail call x86_thiscallcc void (ptr, ...) [[CALLEE]](ptr noundef %{{.*}}, ...) |
| // CHECK32-NEXT: ret void |
| // CHECK32: } |
| // |
| // CHECK64-LABEL: define linkonce_odr void @"??_9C@@$BBA@AA"(ptr noundef %this, ...) |
| // CHECK64: #[[ATTR]] comdat |
| // CHECK64: [[VPTR:%.*]] = getelementptr inbounds ptr, ptr %{{.*}}, i64 2 |
| // CHECK64: [[CALLEE:%.*]] = load ptr, ptr [[VPTR]] |
| // CHECK64: musttail call void (ptr, ...) [[CALLEE]](ptr noundef %{{.*}}, ...) |
| // CHECK64-NEXT: ret void |
| // CHECK64: } |
| |
| // Thunk for calling the virtual function in internal class D. |
| // CHECK32-LABEL: define internal x86_thiscallcc void @"??_9D@?A0x{{[^@]*}}@@$BA@AE"(ptr noundef %this, ...) |
| // CHECK32: #[[ATTR]] |
| // CHECK32: [[VPTR:%.*]] = getelementptr inbounds ptr, ptr %{{.*}}, i64 0 |
| // CHECK32: [[CALLEE:%.*]] = load ptr, ptr [[VPTR]] |
| // CHECK32: musttail call x86_thiscallcc void (ptr, ...) [[CALLEE]](ptr noundef %{{.*}}, ...) |
| // CHECK32-NEXT: ret void |
| // CHECK32: } |
| // |
| // CHECK64-LABEL: define internal void @"??_9D@?A0x{{[^@]*}}@@$BA@AA"(ptr noundef %this, ...) |
| // CHECK64: #[[ATTR]] |
| // CHECK64: [[VPTR:%.*]] = getelementptr inbounds ptr, ptr %{{.*}}, i64 0 |
| // CHECK64: [[CALLEE:%.*]] = load ptr, ptr [[VPTR]] |
| // CHECK64: musttail call void (ptr, ...) [[CALLEE]](ptr noundef %{{.*}}, ...) |
| // CHECK64-NEXT: ret void |
| // CHECK64: } |
| |
| // Thunk for calling the fourth virtual function in C, taking a struct parameter |
| // and returning a struct. |
| // CHECK32-LABEL: define linkonce_odr x86_thiscallcc void @"??_9C@@$BM@AE"(ptr noundef %this, ...) {{.*}} comdat |
| // CHECK32: [[VPTR:%.*]] = getelementptr inbounds ptr, ptr %{{.*}}, i64 3 |
| // CHECK32: [[CALLEE:%.*]] = load ptr, ptr [[VPTR]] |
| // CHECK32: musttail call x86_thiscallcc void (ptr, ...) [[CALLEE]](ptr noundef %{{.*}}, ...) |
| // CHECK32-NEXT: ret void |
| // CHECK32: } |
| // |
| // CHECK64-LABEL: define linkonce_odr void @"??_9C@@$BBI@AA"(ptr noundef %this, ...) {{.*}} comdat |
| // CHECK64: [[VPTR:%.*]] = getelementptr inbounds ptr, ptr %{{.*}}, i64 3 |
| // CHECK64: [[CALLEE:%.*]] = load ptr, ptr [[VPTR]] |
| // CHECK64: musttail call void (ptr, ...) [[CALLEE]](ptr noundef %{{.*}}, ...) |
| // CHECK64: ret void |
| // CHECK64: } |
| |
| // Thunk for calling the fifth virtual function in C which uses the __cdecl calling convention. |
| // CHECK32-LABEL: define linkonce_odr void @"??_9C@@$BBA@AA"(ptr noundef %this, ...) {{.*}} comdat align 2 { |
| // CHECK32: [[VPTR:%.*]] = getelementptr inbounds ptr, ptr %{{.*}}, i64 4 |
| // CHECK32: [[CALLEE:%.*]] = load ptr, ptr [[VPTR]] |
| // CHECK32: musttail call void (ptr, ...) [[CALLEE]](ptr noundef %{{.*}}, ...) |
| // CHECK32: ret void |
| // CHECK32: } |
| // |
| // CHECK64-LABEL: define linkonce_odr void @"??_9C@@$BCA@AA"(ptr noundef %this, ...) {{.*}} comdat align 2 { |
| // CHECK64: [[VPTR:%.*]] = getelementptr inbounds ptr, ptr %{{.*}}, i64 4 |
| // CHECK64: [[CALLEE:%.*]] = load ptr, ptr [[VPTR]] |
| // CHECK64: musttail call void (ptr, ...) [[CALLEE]](ptr noundef %{{.*}}, ...) |
| // CHECK64: ret void |
| // CHECK64: } |
| |
| // CHECK32: define linkonce_odr x86_thiscallcc void @"??_9C@@$BBE@AE"(ptr noundef %this, ...) {{.*}} comdat align 2 { |
| // CHECK32: [[VPTR:%.*]] = getelementptr inbounds ptr, ptr %{{.*}}, i64 5 |
| // CHECK32: [[CALLEE:%.*]] = load ptr, ptr [[VPTR]] |
| // CHECK32: musttail call x86_thiscallcc void (ptr, ...) [[CALLEE]](ptr noundef %{{.*}}, ...) |
| // CHECK32: ret void |
| // CHECK32: } |
| |
| // CHECK64: define linkonce_odr void @"??_9C@@$BCI@AA"(ptr noundef %this, ...) {{.*}} comdat align 2 { |
| // CHECK64: [[VPTR:%.*]] = getelementptr inbounds ptr, ptr %{{.*}}, i64 5 |
| // CHECK64: [[CALLEE:%.*]] = load ptr, ptr [[VPTR]] |
| // CHECK64: musttail call void (ptr, ...) [[CALLEE]](ptr noundef %{{.*}}, ...) |
| // CHECK64: ret void |
| // CHECK64: } |
| |
| // CHECK32: #[[ATTR]] = {{{.*}}"thunk"{{.*}}} |