diff options
Diffstat (limited to 'test/CodeGenCXX/microsoft-abi-virtual-member-pointers.cpp')
| -rw-r--r-- | test/CodeGenCXX/microsoft-abi-virtual-member-pointers.cpp | 108 |
1 files changed, 108 insertions, 0 deletions
diff --git a/test/CodeGenCXX/microsoft-abi-virtual-member-pointers.cpp b/test/CodeGenCXX/microsoft-abi-virtual-member-pointers.cpp new file mode 100644 index 000000000000..51a04c89dcb7 --- /dev/null +++ b/test/CodeGenCXX/microsoft-abi-virtual-member-pointers.cpp @@ -0,0 +1,108 @@ +// RUN: %clang_cc1 -fno-rtti -emit-llvm -cxx-abi microsoft -triple=i386-pc-win32 %s -o - | FileCheck %s --check-prefix=CHECK32 +// RUN: %clang_cc1 -fno-rtti -emit-llvm -cxx-abi microsoft -triple=x86_64-pc-win32 %s -o - | FileCheck %s --check-prefix=CHECK64 + +struct S { + int x, y, z; +}; + +struct C { + virtual void foo(); + virtual int bar(int, double); + virtual S baz(int); +}; + +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; + +// CHECK32-LABEL: define void @"\01?f@@YAXXZ"() +// CHECK32: store i8* bitcast (void (%struct.C*)* @"\01??_9C@@$BA@AE" to i8*), i8** %ptr +// CHECK32: store i8* bitcast (i32 (%struct.C*, i32, double)* @"\01??_9C@@$B3AE" to i8*), i8** %ptr2 +// CHECK32: store i8* bitcast (void (%struct.S*, %struct.C*, i32)* @"\01??_9C@@$B7AE" to i8*), i8** %ptr3 +// CHECK32: store i8* bitcast (void (%"struct.<anonymous namespace>::D"*)* @"\01??_9D@?A@@$BA@AE" to i8*), i8** %ptr4 +// CHECK32: } +// +// CHECK64-LABEL: define void @"\01?f@@YAXXZ"() +// CHECK64: store i8* bitcast (void (%struct.C*)* @"\01??_9C@@$BA@AA" to i8*), i8** %ptr +// CHECK64: store i8* bitcast (i32 (%struct.C*, i32, double)* @"\01??_9C@@$B7AA" to i8*), i8** %ptr2 +// CHECK64: store i8* bitcast (void (%struct.S*, %struct.C*, i32)* @"\01??_9C@@$BBA@AA" to i8*), i8** %ptr3 +// CHECK64: store i8* bitcast (void (%"struct.<anonymous namespace>::D"*)* @"\01??_9D@?A@@$BA@AA" to i8*), i8** %ptr +// CHECK64: } +} + + +// Thunk for calling the 1st virtual function in C with no parameters. +// CHECK32-LABEL: define linkonce_odr x86_thiscallcc void @"\01??_9C@@$BA@AE"(%struct.C* %this) unnamed_addr +// CHECK32: [[VPTR:%.*]] = getelementptr inbounds void (%struct.C*)** %{{.*}}, i64 0 +// CHECK32: [[CALLEE:%.*]] = load void (%struct.C*)** [[VPTR]] +// CHECK32: call x86_thiscallcc void [[CALLEE]](%struct.C* %{{.*}}) +// CHECK32: ret void +// CHECK32: } +// +// CHECK64-LABEL: define linkonce_odr void @"\01??_9C@@$BA@AA"(%struct.C* %this) unnamed_addr +// CHECK64: [[VPTR:%.*]] = getelementptr inbounds void (%struct.C*)** %{{.*}}, i64 0 +// CHECK64: [[CALLEE:%.*]] = load void (%struct.C*)** [[VPTR]] +// CHECK64: call void [[CALLEE]](%struct.C* %{{.*}}) +// CHECK64: 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 i32 @"\01??_9C@@$B3AE"(%struct.C* %this, i32, double) unnamed_addr +// CHECK32: [[VPTR:%.*]] = getelementptr inbounds i32 (%struct.C*, i32, double)** %{{.*}}, i64 1 +// CHECK32: [[CALLEE:%.*]] = load i32 (%struct.C*, i32, double)** [[VPTR]] +// CHECK32: [[CALL:%.*]] = call x86_thiscallcc i32 [[CALLEE]](%struct.C* %{{.*}}, i32 %{{.*}}, double %{{.*}}) +// CHECK32: ret i32 [[CALL]] +// CHECK32: } +// +// CHECK64-LABEL: define linkonce_odr i32 @"\01??_9C@@$B7AA"(%struct.C* %this, i32, double) unnamed_addr +// CHECK64: [[VPTR:%.*]] = getelementptr inbounds i32 (%struct.C*, i32, double)** %{{.*}}, i64 1 +// CHECK64: [[CALLEE:%.*]] = load i32 (%struct.C*, i32, double)** [[VPTR]] +// CHECK64: [[CALL:%.*]] = call i32 [[CALLEE]](%struct.C* %{{.*}}, i32 %{{.*}}, double %{{.*}}) +// CHECK64: ret i32 [[CALL]] +// 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 @"\01??_9C@@$B7AE"(%struct.S* noalias sret %agg.result, %struct.C* %this, i32) unnamed_addr +// CHECK32: [[VPTR:%.*]] = getelementptr inbounds void (%struct.S*, %struct.C*, i32)** %{{.*}}, i64 2 +// CHECK32: [[CALLEE:%.*]] = load void (%struct.S*, %struct.C*, i32)** [[VPTR]] +// CHECK32: call x86_thiscallcc void [[CALLEE]](%struct.S* sret %agg.result, %struct.C* %{{.*}}, i32 %{{.*}}) +// CHECK32: ret void +// CHECK32: } +// +// CHECK64-LABEL: define linkonce_odr void @"\01??_9C@@$BBA@AA"(%struct.S* noalias sret %agg.result, %struct.C* %this, i32) unnamed_addr +// CHECK64: [[VPTR:%.*]] = getelementptr inbounds void (%struct.S*, %struct.C*, i32)** %{{.*}}, i64 2 +// CHECK64: [[CALLEE:%.*]] = load void (%struct.S*, %struct.C*, i32)** [[VPTR]] +// CHECK64: call void [[CALLEE]](%struct.S* sret %agg.result, %struct.C* %{{.*}}, i32 %{{.*}}) +// CHECK64: ret void +// CHECK64: } + +// Thunk for calling the virtual function in internal class D. +// CHECK32-LABEL: define internal x86_thiscallcc void @"\01??_9D@?A@@$BA@AE"(%"struct.<anonymous namespace>::D"* %this) unnamed_addr +// CHECK32: [[VPTR:%.*]] = getelementptr inbounds void (%"struct.<anonymous namespace>::D"*)** %{{.*}}, i64 0 +// CHECK32: [[CALLEE:%.*]] = load void (%"struct.<anonymous namespace>::D"*)** [[VPTR]] +// CHECK32: call x86_thiscallcc void [[CALLEE]](%"struct.<anonymous namespace>::D"* %{{.*}}) +// CHECK32: ret void +// CHECK32: } +// +// CHECK64-LABEL: define internal void @"\01??_9D@?A@@$BA@AA"(%"struct.<anonymous namespace>::D"* %this) unnamed_addr +// CHECK64: [[VPTR:%.*]] = getelementptr inbounds void (%"struct.<anonymous namespace>::D"*)** %{{.*}}, i64 0 +// CHECK64: [[CALLEE:%.*]] = load void (%"struct.<anonymous namespace>::D"*)** [[VPTR]] +// CHECK64: call void [[CALLEE]](%"struct.<anonymous namespace>::D"* %{{.*}}) +// CHECK64: ret void +// CHECK64: } |