forked from OSchip/llvm-project
488 lines
19 KiB
C++
488 lines
19 KiB
C++
// RUN: %clang_cc1 -emit-llvm -fno-rtti %s -std=c++11 -o - -mconstructor-aliases -triple=i386-pc-win32 -fno-rtti > %t
|
|
// RUN: FileCheck %s < %t
|
|
// vftables are emitted very late, so do another pass to try to keep the checks
|
|
// in source order.
|
|
// RUN: FileCheck --check-prefix DTORS %s < %t
|
|
// RUN: FileCheck --check-prefix DTORS2 %s < %t
|
|
// RUN: FileCheck --check-prefix DTORS3 %s < %t
|
|
// RUN: FileCheck --check-prefix DTORS4 %s < %t
|
|
//
|
|
// RUN: %clang_cc1 -emit-llvm %s -o - -mconstructor-aliases -triple=x86_64-pc-win32 -fno-rtti -std=c++11 | FileCheck --check-prefix DTORS-X64 %s
|
|
|
|
namespace basic {
|
|
|
|
class A {
|
|
public:
|
|
A() { }
|
|
~A();
|
|
};
|
|
|
|
void no_constructor_destructor_infinite_recursion() {
|
|
A a;
|
|
|
|
// CHECK: define linkonce_odr x86_thiscallcc %"class.basic::A"* @"\01??0A@basic@@QAE@XZ"(%"class.basic::A"* returned %this) {{.*}} comdat {{.*}} {
|
|
// CHECK: [[THIS_ADDR:%[.0-9A-Z_a-z]+]] = alloca %"class.basic::A"*, align 4
|
|
// CHECK-NEXT: store %"class.basic::A"* %this, %"class.basic::A"** [[THIS_ADDR]], align 4
|
|
// CHECK-NEXT: [[T1:%[.0-9A-Z_a-z]+]] = load %"class.basic::A"*, %"class.basic::A"** [[THIS_ADDR]]
|
|
// CHECK-NEXT: ret %"class.basic::A"* [[T1]]
|
|
// CHECK-NEXT: }
|
|
}
|
|
|
|
A::~A() {
|
|
// Make sure that the destructor doesn't call itself:
|
|
// CHECK: define {{.*}} @"\01??1A@basic@@QAE@XZ"
|
|
// CHECK-NOT: call void @"\01??1A@basic@@QAE@XZ"
|
|
// CHECK: ret
|
|
}
|
|
|
|
struct B {
|
|
B();
|
|
};
|
|
|
|
// Tests that we can define constructors outside the class (PR12784).
|
|
B::B() {
|
|
// CHECK: define x86_thiscallcc %"struct.basic::B"* @"\01??0B@basic@@QAE@XZ"(%"struct.basic::B"* returned %this)
|
|
// CHECK: ret
|
|
}
|
|
|
|
struct C {
|
|
virtual ~C() {
|
|
// DTORS: define linkonce_odr x86_thiscallcc i8* @"\01??_GC@basic@@UAEPAXI@Z"(%"struct.basic::C"* %this, i32 %should_call_delete) {{.*}} comdat {{.*}} {
|
|
// DTORS: store i32 %should_call_delete, i32* %[[SHOULD_DELETE_VAR:[0-9a-z._]+]], align 4
|
|
// DTORS: store i8* %{{.*}}, i8** %[[RETVAL:[0-9a-z._]+]]
|
|
// DTORS: %[[SHOULD_DELETE_VALUE:[0-9a-z._]+]] = load i32, i32* %[[SHOULD_DELETE_VAR]]
|
|
// DTORS: call x86_thiscallcc void @"\01??1C@basic@@UAE@XZ"(%"struct.basic::C"* %[[THIS:[0-9a-z]+]])
|
|
// DTORS-NEXT: %[[CONDITION:[0-9]+]] = icmp eq i32 %[[SHOULD_DELETE_VALUE]], 0
|
|
// DTORS-NEXT: br i1 %[[CONDITION]], label %[[CONTINUE_LABEL:[0-9a-z._]+]], label %[[CALL_DELETE_LABEL:[0-9a-z._]+]]
|
|
//
|
|
// DTORS: [[CALL_DELETE_LABEL]]
|
|
// DTORS-NEXT: %[[THIS_AS_VOID:[0-9a-z]+]] = bitcast %"struct.basic::C"* %[[THIS]] to i8*
|
|
// DTORS-NEXT: call void @"\01??3@YAXPAX@Z"(i8* %[[THIS_AS_VOID]])
|
|
// DTORS-NEXT: br label %[[CONTINUE_LABEL]]
|
|
//
|
|
// DTORS: [[CONTINUE_LABEL]]
|
|
// DTORS-NEXT: %[[RET:.*]] = load i8*, i8** %[[RETVAL]]
|
|
// DTORS-NEXT: ret i8* %[[RET]]
|
|
|
|
// Check that we do the mangling correctly on x64.
|
|
// DTORS-X64: @"\01??_GC@basic@@UEAAPEAXI@Z"
|
|
}
|
|
virtual void foo();
|
|
};
|
|
|
|
// Emits the vftable in the output.
|
|
void C::foo() {}
|
|
|
|
void check_vftable_offset() {
|
|
C c;
|
|
// The vftable pointer should point at the beginning of the vftable.
|
|
// CHECK: [[THIS_PTR:%[0-9]+]] = bitcast %"struct.basic::C"* {{.*}} to i32 (...)***
|
|
// CHECK: store i32 (...)** bitcast ([2 x i8*]* @"\01??_7C@basic@@6B@" to i32 (...)**), i32 (...)*** [[THIS_PTR]]
|
|
}
|
|
|
|
void call_complete_dtor(C *obj_ptr) {
|
|
// CHECK: define void @"\01?call_complete_dtor@basic@@YAXPAUC@1@@Z"(%"struct.basic::C"* %obj_ptr)
|
|
obj_ptr->~C();
|
|
// CHECK: %[[OBJ_PTR_VALUE:.*]] = load %"struct.basic::C"*, %"struct.basic::C"** %{{.*}}, align 4
|
|
// CHECK-NEXT: %[[PVTABLE:.*]] = bitcast %"struct.basic::C"* %[[OBJ_PTR_VALUE]] to i8* (%"struct.basic::C"*, i32)***
|
|
// CHECK-NEXT: %[[VTABLE:.*]] = load i8* (%"struct.basic::C"*, i32)**, i8* (%"struct.basic::C"*, i32)*** %[[PVTABLE]]
|
|
// CHECK-NEXT: %[[PVDTOR:.*]] = getelementptr inbounds i8* (%"struct.basic::C"*, i32)*, i8* (%"struct.basic::C"*, i32)** %[[VTABLE]], i64 0
|
|
// CHECK-NEXT: %[[VDTOR:.*]] = load i8* (%"struct.basic::C"*, i32)*, i8* (%"struct.basic::C"*, i32)** %[[PVDTOR]]
|
|
// CHECK-NEXT: call x86_thiscallcc i8* %[[VDTOR]](%"struct.basic::C"* %[[OBJ_PTR_VALUE]], i32 0)
|
|
// CHECK-NEXT: ret void
|
|
}
|
|
|
|
void call_deleting_dtor(C *obj_ptr) {
|
|
// CHECK: define void @"\01?call_deleting_dtor@basic@@YAXPAUC@1@@Z"(%"struct.basic::C"* %obj_ptr)
|
|
delete obj_ptr;
|
|
// CHECK: %[[OBJ_PTR_VALUE:.*]] = load %"struct.basic::C"*, %"struct.basic::C"** %{{.*}}, align 4
|
|
// CHECK: br i1 {{.*}}, label %[[DELETE_NULL:.*]], label %[[DELETE_NOTNULL:.*]]
|
|
|
|
// CHECK: [[DELETE_NOTNULL]]
|
|
// CHECK-NEXT: %[[PVTABLE:.*]] = bitcast %"struct.basic::C"* %[[OBJ_PTR_VALUE]] to i8* (%"struct.basic::C"*, i32)***
|
|
// CHECK-NEXT: %[[VTABLE:.*]] = load i8* (%"struct.basic::C"*, i32)**, i8* (%"struct.basic::C"*, i32)*** %[[PVTABLE]]
|
|
// CHECK-NEXT: %[[PVDTOR:.*]] = getelementptr inbounds i8* (%"struct.basic::C"*, i32)*, i8* (%"struct.basic::C"*, i32)** %[[VTABLE]], i64 0
|
|
// CHECK-NEXT: %[[VDTOR:.*]] = load i8* (%"struct.basic::C"*, i32)*, i8* (%"struct.basic::C"*, i32)** %[[PVDTOR]]
|
|
// CHECK-NEXT: call x86_thiscallcc i8* %[[VDTOR]](%"struct.basic::C"* %[[OBJ_PTR_VALUE]], i32 1)
|
|
// CHECK: ret void
|
|
}
|
|
|
|
void call_deleting_dtor_and_global_delete(C *obj_ptr) {
|
|
// CHECK: define void @"\01?call_deleting_dtor_and_global_delete@basic@@YAXPAUC@1@@Z"(%"struct.basic::C"* %obj_ptr)
|
|
::delete obj_ptr;
|
|
// CHECK: %[[OBJ_PTR_VALUE:.*]] = load %"struct.basic::C"*, %"struct.basic::C"** %{{.*}}, align 4
|
|
// CHECK: br i1 {{.*}}, label %[[DELETE_NULL:.*]], label %[[DELETE_NOTNULL:.*]]
|
|
|
|
// CHECK: [[DELETE_NOTNULL]]
|
|
// CHECK-NEXT: %[[PVTABLE:.*]] = bitcast %"struct.basic::C"* %[[OBJ_PTR_VALUE]] to i8* (%"struct.basic::C"*, i32)***
|
|
// CHECK-NEXT: %[[VTABLE:.*]] = load i8* (%"struct.basic::C"*, i32)**, i8* (%"struct.basic::C"*, i32)*** %[[PVTABLE]]
|
|
// CHECK-NEXT: %[[PVDTOR:.*]] = getelementptr inbounds i8* (%"struct.basic::C"*, i32)*, i8* (%"struct.basic::C"*, i32)** %[[VTABLE]], i64 0
|
|
// CHECK-NEXT: %[[VDTOR:.*]] = load i8* (%"struct.basic::C"*, i32)*, i8* (%"struct.basic::C"*, i32)** %[[PVDTOR]]
|
|
// CHECK-NEXT: %[[CALL:.*]] = call x86_thiscallcc i8* %[[VDTOR]](%"struct.basic::C"* %[[OBJ_PTR_VALUE]], i32 0)
|
|
// CHECK-NEXT: call void @"\01??3@YAXPAX@Z"(i8* %[[CALL]])
|
|
// CHECK: ret void
|
|
}
|
|
|
|
struct D {
|
|
static int foo();
|
|
|
|
D() {
|
|
static int ctor_static = foo();
|
|
// CHECK that the static in the ctor gets mangled correctly:
|
|
// CHECK: @"\01?ctor_static@?1???0D@basic@@QAE@XZ@4HA"
|
|
}
|
|
~D() {
|
|
static int dtor_static = foo();
|
|
// CHECK that the static in the dtor gets mangled correctly:
|
|
// CHECK: @"\01?dtor_static@?1???1D@basic@@QAE@XZ@4HA"
|
|
}
|
|
};
|
|
|
|
void use_D() { D c; }
|
|
|
|
} // end namespace basic
|
|
|
|
namespace dtor_in_second_nvbase {
|
|
|
|
struct A {
|
|
virtual void f(); // A needs vftable to be primary.
|
|
};
|
|
struct B {
|
|
virtual ~B();
|
|
};
|
|
struct C : A, B {
|
|
virtual ~C();
|
|
};
|
|
|
|
C::~C() {
|
|
// CHECK-LABEL: define x86_thiscallcc void @"\01??1C@dtor_in_second_nvbase@@UAE@XZ"
|
|
// CHECK: (%"struct.dtor_in_second_nvbase::C"* %this)
|
|
// No this adjustment!
|
|
// CHECK-NOT: getelementptr
|
|
// CHECK: load %"struct.dtor_in_second_nvbase::C"*, %"struct.dtor_in_second_nvbase::C"** %{{.*}}
|
|
// Now we this-adjust before calling ~B.
|
|
// CHECK: bitcast %"struct.dtor_in_second_nvbase::C"* %{{.*}} to i8*
|
|
// CHECK: getelementptr inbounds i8, i8* %{{.*}}, i32 4
|
|
// CHECK: bitcast i8* %{{.*}} to %"struct.dtor_in_second_nvbase::B"*
|
|
// CHECK: call x86_thiscallcc void @"\01??1B@dtor_in_second_nvbase@@UAE@XZ"
|
|
// CHECK: (%"struct.dtor_in_second_nvbase::B"* %{{.*}})
|
|
// CHECK: ret void
|
|
}
|
|
|
|
void foo() {
|
|
C c;
|
|
}
|
|
// DTORS2-LABEL: define linkonce_odr x86_thiscallcc i8* @"\01??_EC@dtor_in_second_nvbase@@W3AEPAXI@Z"
|
|
// DTORS2: (%"struct.dtor_in_second_nvbase::C"* %this, i32 %should_call_delete)
|
|
// Do an adjustment from B* to C*.
|
|
// DTORS2: getelementptr i8, i8* %{{.*}}, i32 -4
|
|
// DTORS2: bitcast i8* %{{.*}} to %"struct.dtor_in_second_nvbase::C"*
|
|
// DTORS2: %[[CALL:.*]] = tail call x86_thiscallcc i8* @"\01??_GC@dtor_in_second_nvbase@@UAEPAXI@Z"
|
|
// DTORS2: ret i8* %[[CALL]]
|
|
|
|
}
|
|
|
|
namespace test2 {
|
|
// Just like dtor_in_second_nvbase, except put that in a vbase of a diamond.
|
|
|
|
// C's dtor is in the non-primary base.
|
|
struct A { virtual void f(); };
|
|
struct B { virtual ~B(); };
|
|
struct C : A, B { virtual ~C(); int c; };
|
|
|
|
// Diamond hierarchy, with C as the shared vbase.
|
|
struct D : virtual C { int d; };
|
|
struct E : virtual C { int e; };
|
|
struct F : D, E { ~F(); int f; };
|
|
|
|
F::~F() {
|
|
// CHECK-LABEL: define x86_thiscallcc void @"\01??1F@test2@@UAE@XZ"(%"struct.test2::F"*{{[^,]*}})
|
|
// Do an adjustment from C vbase subobject to F as though F was the
|
|
// complete type.
|
|
// CHECK: getelementptr inbounds i8, i8* %{{.*}}, i32 -20
|
|
// CHECK: bitcast i8* %{{.*}} to %"struct.test2::F"*
|
|
// CHECK: store %"struct.test2::F"*
|
|
}
|
|
|
|
void foo() {
|
|
F f;
|
|
}
|
|
// DTORS3-LABEL: define linkonce_odr x86_thiscallcc void @"\01??_DF@test2@@UAE@XZ"({{.*}} {{.*}} comdat
|
|
// Do an adjustment from C* to F*.
|
|
// DTORS3: getelementptr i8, i8* %{{.*}}, i32 20
|
|
// DTORS3: bitcast i8* %{{.*}} to %"struct.test2::F"*
|
|
// DTORS3: call x86_thiscallcc void @"\01??1F@test2@@UAE@XZ"
|
|
// DTORS3: ret void
|
|
|
|
}
|
|
|
|
namespace constructors {
|
|
|
|
struct A {
|
|
A() {}
|
|
};
|
|
|
|
struct B : A {
|
|
B();
|
|
~B();
|
|
};
|
|
|
|
B::B() {
|
|
// CHECK: define x86_thiscallcc %"struct.constructors::B"* @"\01??0B@constructors@@QAE@XZ"(%"struct.constructors::B"* returned %this)
|
|
// CHECK: call x86_thiscallcc %"struct.constructors::A"* @"\01??0A@constructors@@QAE@XZ"(%"struct.constructors::A"* %{{.*}})
|
|
// CHECK: ret
|
|
}
|
|
|
|
struct C : virtual A {
|
|
C();
|
|
};
|
|
|
|
C::C() {
|
|
// CHECK: define x86_thiscallcc %"struct.constructors::C"* @"\01??0C@constructors@@QAE@XZ"(%"struct.constructors::C"* returned %this, i32 %is_most_derived)
|
|
// TODO: make sure this works in the Release build too;
|
|
// CHECK: store i32 %is_most_derived, i32* %[[IS_MOST_DERIVED_VAR:.*]], align 4
|
|
// CHECK: %[[IS_MOST_DERIVED_VAL:.*]] = load i32, i32* %[[IS_MOST_DERIVED_VAR]]
|
|
// CHECK: %[[SHOULD_CALL_VBASE_CTORS:.*]] = icmp ne i32 %[[IS_MOST_DERIVED_VAL]], 0
|
|
// CHECK: br i1 %[[SHOULD_CALL_VBASE_CTORS]], label %[[INIT_VBASES:.*]], label %[[SKIP_VBASES:.*]]
|
|
//
|
|
// CHECK: [[INIT_VBASES]]
|
|
// CHECK-NEXT: %[[this_i8:.*]] = bitcast %"struct.constructors::C"* %{{.*}} to i8*
|
|
// CHECK-NEXT: %[[vbptr_off:.*]] = getelementptr inbounds i8, i8* %[[this_i8]], i32 0
|
|
// CHECK-NEXT: %[[vbptr:.*]] = bitcast i8* %[[vbptr_off]] to i32**
|
|
// CHECK-NEXT: store i32* getelementptr inbounds ([2 x i32], [2 x i32]* @"\01??_8C@constructors@@7B@", i32 0, i32 0), i32** %[[vbptr]]
|
|
// CHECK-NEXT: bitcast %"struct.constructors::C"* %{{.*}} to i8*
|
|
// CHECK-NEXT: getelementptr inbounds i8, i8* %{{.*}}, i32 4
|
|
// CHECK-NEXT: bitcast i8* %{{.*}} to %"struct.constructors::A"*
|
|
// CHECK-NEXT: call x86_thiscallcc %"struct.constructors::A"* @"\01??0A@constructors@@QAE@XZ"(%"struct.constructors::A"* %{{.*}})
|
|
// CHECK-NEXT: br label %[[SKIP_VBASES]]
|
|
//
|
|
// CHECK: [[SKIP_VBASES]]
|
|
// Class C does not define or override methods, so shouldn't change the vfptr.
|
|
// CHECK-NOT: @"\01??_7C@constructors@@6B@"
|
|
// CHECK: ret
|
|
}
|
|
|
|
void create_C() {
|
|
C c;
|
|
// CHECK: define void @"\01?create_C@constructors@@YAXXZ"()
|
|
// CHECK: call x86_thiscallcc %"struct.constructors::C"* @"\01??0C@constructors@@QAE@XZ"(%"struct.constructors::C"* %c, i32 1)
|
|
// CHECK: ret
|
|
}
|
|
|
|
struct D : C {
|
|
D();
|
|
};
|
|
|
|
D::D() {
|
|
// CHECK: define x86_thiscallcc %"struct.constructors::D"* @"\01??0D@constructors@@QAE@XZ"(%"struct.constructors::D"* returned %this, i32 %is_most_derived) unnamed_addr
|
|
// CHECK: store i32 %is_most_derived, i32* %[[IS_MOST_DERIVED_VAR:.*]], align 4
|
|
// CHECK: %[[IS_MOST_DERIVED_VAL:.*]] = load i32, i32* %[[IS_MOST_DERIVED_VAR]]
|
|
// CHECK: %[[SHOULD_CALL_VBASE_CTORS:.*]] = icmp ne i32 %[[IS_MOST_DERIVED_VAL]], 0
|
|
// CHECK: br i1 %[[SHOULD_CALL_VBASE_CTORS]], label %[[INIT_VBASES:.*]], label %[[SKIP_VBASES:.*]]
|
|
//
|
|
// CHECK: [[INIT_VBASES]]
|
|
// CHECK-NEXT: %[[this_i8:.*]] = bitcast %"struct.constructors::D"* %{{.*}} to i8*
|
|
// CHECK-NEXT: %[[vbptr_off:.*]] = getelementptr inbounds i8, i8* %[[this_i8]], i32 0
|
|
// CHECK-NEXT: %[[vbptr:.*]] = bitcast i8* %[[vbptr_off]] to i32**
|
|
// CHECK-NEXT: store i32* getelementptr inbounds ([2 x i32], [2 x i32]* @"\01??_8D@constructors@@7B@", i32 0, i32 0), i32** %[[vbptr]]
|
|
// CHECK-NEXT: bitcast %"struct.constructors::D"* %{{.*}} to i8*
|
|
// CHECK-NEXT: getelementptr inbounds i8, i8* %{{.*}}, i32 4
|
|
// CHECK-NEXT: bitcast i8* %{{.*}} to %"struct.constructors::A"*
|
|
// CHECK-NEXT: call x86_thiscallcc %"struct.constructors::A"* @"\01??0A@constructors@@QAE@XZ"(%"struct.constructors::A"* %{{.*}})
|
|
// CHECK-NEXT: br label %[[SKIP_VBASES]]
|
|
//
|
|
// CHECK: [[SKIP_VBASES]]
|
|
// CHECK: call x86_thiscallcc %"struct.constructors::C"* @"\01??0C@constructors@@QAE@XZ"(%"struct.constructors::C"* %{{.*}}, i32 0)
|
|
// CHECK: ret
|
|
}
|
|
|
|
struct E : virtual C {
|
|
E();
|
|
};
|
|
|
|
E::E() {
|
|
// CHECK: define x86_thiscallcc %"struct.constructors::E"* @"\01??0E@constructors@@QAE@XZ"(%"struct.constructors::E"* returned %this, i32 %is_most_derived) unnamed_addr
|
|
// CHECK: store i32 %is_most_derived, i32* %[[IS_MOST_DERIVED_VAR:.*]], align 4
|
|
// CHECK: %[[IS_MOST_DERIVED_VAL:.*]] = load i32, i32* %[[IS_MOST_DERIVED_VAR]]
|
|
// CHECK: %[[SHOULD_CALL_VBASE_CTORS:.*]] = icmp ne i32 %[[IS_MOST_DERIVED_VAL]], 0
|
|
// CHECK: br i1 %[[SHOULD_CALL_VBASE_CTORS]], label %[[INIT_VBASES:.*]], label %[[SKIP_VBASES:.*]]
|
|
//
|
|
// CHECK: [[INIT_VBASES]]
|
|
// CHECK-NEXT: %[[this_i8:.*]] = bitcast %"struct.constructors::E"* %{{.*}} to i8*
|
|
// CHECK-NEXT: %[[offs:.*]] = getelementptr inbounds i8, i8* %[[this_i8]], i32 0
|
|
// CHECK-NEXT: %[[vbptr_E:.*]] = bitcast i8* %[[offs]] to i32**
|
|
// CHECK-NEXT: store i32* getelementptr inbounds ([3 x i32], [3 x i32]* @"\01??_8E@constructors@@7B01@@", i32 0, i32 0), i32** %[[vbptr_E]]
|
|
// CHECK-NEXT: %[[offs:.*]] = getelementptr inbounds i8, i8* %[[this_i8]], i32 4
|
|
// CHECK-NEXT: %[[vbptr_C:.*]] = bitcast i8* %[[offs]] to i32**
|
|
// CHECK-NEXT: store i32* getelementptr inbounds ([2 x i32], [2 x i32]* @"\01??_8E@constructors@@7BC@1@@", i32 0, i32 0), i32** %[[vbptr_C]]
|
|
// CHECK-NEXT: bitcast %"struct.constructors::E"* %{{.*}} to i8*
|
|
// CHECK-NEXT: getelementptr inbounds i8, i8* %{{.*}}, i32 4
|
|
// CHECK-NEXT: bitcast i8* %{{.*}} to %"struct.constructors::A"*
|
|
// CHECK-NEXT: call x86_thiscallcc %"struct.constructors::A"* @"\01??0A@constructors@@QAE@XZ"(%"struct.constructors::A"* %{{.*}})
|
|
// CHECK: call x86_thiscallcc %"struct.constructors::C"* @"\01??0C@constructors@@QAE@XZ"(%"struct.constructors::C"* %{{.*}}, i32 0)
|
|
// CHECK-NEXT: br label %[[SKIP_VBASES]]
|
|
//
|
|
// CHECK: [[SKIP_VBASES]]
|
|
// CHECK: ret
|
|
}
|
|
|
|
// PR16735 - even abstract classes should have a constructor emitted.
|
|
struct F {
|
|
F();
|
|
virtual void f() = 0;
|
|
};
|
|
|
|
F::F() {}
|
|
// CHECK: define x86_thiscallcc %"struct.constructors::F"* @"\01??0F@constructors@@QAE@XZ"
|
|
|
|
} // end namespace constructors
|
|
|
|
namespace dtors {
|
|
|
|
struct A {
|
|
~A();
|
|
};
|
|
|
|
void call_nv_complete(A *a) {
|
|
a->~A();
|
|
// CHECK: define void @"\01?call_nv_complete@dtors@@YAXPAUA@1@@Z"
|
|
// CHECK: call x86_thiscallcc void @"\01??1A@dtors@@QAE@XZ"
|
|
// CHECK: ret
|
|
}
|
|
|
|
// CHECK: declare x86_thiscallcc void @"\01??1A@dtors@@QAE@XZ"
|
|
|
|
// Now try some virtual bases, where we need the complete dtor.
|
|
|
|
struct B : virtual A { ~B(); };
|
|
struct C : virtual A { ~C(); };
|
|
struct D : B, C { ~D(); };
|
|
|
|
void call_vbase_complete(D *d) {
|
|
d->~D();
|
|
// CHECK: define void @"\01?call_vbase_complete@dtors@@YAXPAUD@1@@Z"
|
|
// CHECK: call x86_thiscallcc void @"\01??_DD@dtors@@QAE@XZ"(%"struct.dtors::D"* %{{[^,]+}})
|
|
// CHECK: ret
|
|
}
|
|
|
|
// The complete dtor should call the base dtors for D and the vbase A (once).
|
|
// CHECK: define linkonce_odr x86_thiscallcc void @"\01??_DD@dtors@@QAE@XZ"({{.*}}) {{.*}} comdat
|
|
// CHECK-NOT: call
|
|
// CHECK: call x86_thiscallcc void @"\01??1D@dtors@@QAE@XZ"
|
|
// CHECK-NOT: call
|
|
// CHECK: call x86_thiscallcc void @"\01??1A@dtors@@QAE@XZ"
|
|
// CHECK-NOT: call
|
|
// CHECK: ret
|
|
|
|
void destroy_d_complete() {
|
|
D d;
|
|
// CHECK: define void @"\01?destroy_d_complete@dtors@@YAXXZ"
|
|
// CHECK: call x86_thiscallcc void @"\01??_DD@dtors@@QAE@XZ"(%"struct.dtors::D"* %{{[^,]+}})
|
|
// CHECK: ret
|
|
}
|
|
|
|
// FIXME: Clang manually inlines the deletion, so we don't get a call to the
|
|
// deleting dtor (_G). The only way to call deleting dtors currently is through
|
|
// a vftable.
|
|
void call_nv_deleting_dtor(D *d) {
|
|
delete d;
|
|
// CHECK: define void @"\01?call_nv_deleting_dtor@dtors@@YAXPAUD@1@@Z"
|
|
// CHECK: call x86_thiscallcc void @"\01??_DD@dtors@@QAE@XZ"(%"struct.dtors::D"* %{{[^,]+}})
|
|
// CHECK: call void @"\01??3@YAXPAX@Z"
|
|
// CHECK: ret
|
|
}
|
|
|
|
}
|
|
|
|
namespace test1 {
|
|
struct A { };
|
|
struct B : virtual A {
|
|
B(int *a);
|
|
B(const char *a, ...);
|
|
__cdecl B(short *a);
|
|
};
|
|
B::B(int *a) {}
|
|
B::B(const char *a, ...) {}
|
|
B::B(short *a) {}
|
|
// CHECK: define x86_thiscallcc %"struct.test1::B"* @"\01??0B@test1@@QAE@PAH@Z"
|
|
// CHECK: (%"struct.test1::B"* returned %this, i32* %a, i32 %is_most_derived)
|
|
// CHECK: define %"struct.test1::B"* @"\01??0B@test1@@QAA@PBDZZ"
|
|
// CHECK: (%"struct.test1::B"* returned %this, i32 %is_most_derived, i8* %a, ...)
|
|
// CHECK: define x86_thiscallcc %"struct.test1::B"* @"\01??0B@test1@@QAE@PAF@Z"
|
|
// CHECK: (%"struct.test1::B"* returned %this, i16* %a, i32 %is_most_derived)
|
|
|
|
void construct_b() {
|
|
int a;
|
|
B b1(&a);
|
|
B b2("%d %d", 1, 2);
|
|
}
|
|
// CHECK-LABEL: define void @"\01?construct_b@test1@@YAXXZ"()
|
|
// CHECK: call x86_thiscallcc %"struct.test1::B"* @"\01??0B@test1@@QAE@PAH@Z"
|
|
// CHECK: (%"struct.test1::B"* {{.*}}, i32* {{.*}}, i32 1)
|
|
// CHECK: call %"struct.test1::B"* (%"struct.test1::B"*, i32, i8*, ...) @"\01??0B@test1@@QAA@PBDZZ"
|
|
// CHECK: (%"struct.test1::B"* {{.*}}, i32 1, i8* {{.*}}, i32 1, i32 2)
|
|
}
|
|
|
|
namespace implicit_copy_vtable {
|
|
// This was a crash that only reproduced in ABIs without key functions.
|
|
struct ImplicitCopy {
|
|
// implicit copy ctor
|
|
virtual ~ImplicitCopy();
|
|
};
|
|
void CreateCopy(ImplicitCopy *a) {
|
|
new ImplicitCopy(*a);
|
|
}
|
|
// CHECK: store {{.*}} @"\01??_7ImplicitCopy@implicit_copy_vtable@@6B@"
|
|
|
|
struct MoveOnly {
|
|
MoveOnly(MoveOnly &&o) = default;
|
|
virtual ~MoveOnly();
|
|
};
|
|
MoveOnly &&f();
|
|
void g() { new MoveOnly(f()); }
|
|
// CHECK: store {{.*}} @"\01??_7MoveOnly@implicit_copy_vtable@@6B@"
|
|
}
|
|
|
|
namespace delegating_ctor {
|
|
struct Y {};
|
|
struct X : virtual Y {
|
|
X(int);
|
|
X();
|
|
};
|
|
X::X(int) : X() {}
|
|
}
|
|
// CHECK: define x86_thiscallcc %"struct.delegating_ctor::X"* @"\01??0X@delegating_ctor@@QAE@H@Z"(
|
|
// CHECK: %[[is_most_derived_addr:.*]] = alloca i32, align 4
|
|
// CHECK: store i32 %is_most_derived, i32* %[[is_most_derived_addr]]
|
|
// CHECK: %[[is_most_derived:.*]] = load i32, i32* %[[is_most_derived_addr]]
|
|
// CHECK: call x86_thiscallcc {{.*}}* @"\01??0X@delegating_ctor@@QAE@XZ"({{.*}} i32 %[[is_most_derived]])
|
|
|
|
// Dtor thunks for classes in anonymous namespaces should be internal, not
|
|
// linkonce_odr.
|
|
namespace {
|
|
struct A {
|
|
virtual ~A() { }
|
|
};
|
|
}
|
|
void *getA() {
|
|
return (void*)new A();
|
|
}
|
|
// CHECK: define internal x86_thiscallcc i8* @"\01??_GA@?A@@UAEPAXI@Z"
|
|
// CHECK: (%"struct.(anonymous namespace)::A"* %this, i32 %should_call_delete)
|
|
// CHECK: define internal x86_thiscallcc void @"\01??1A@?A@@UAE@XZ"
|
|
// CHECK: (%"struct.(anonymous namespace)::A"* %this)
|
|
|
|
// Check that we correctly transform __stdcall to __thiscall for ctors and
|
|
// dtors.
|
|
class G {
|
|
public:
|
|
__stdcall G() {};
|
|
// DTORS4: define linkonce_odr x86_thiscallcc %class.G* @"\01??0G@@QAE@XZ"
|
|
__stdcall ~G() {};
|
|
// DTORS4: define linkonce_odr x86_thiscallcc void @"\01??1G@@QAE@XZ"
|
|
};
|
|
|
|
extern void testG() {
|
|
G g;
|
|
}
|