57 lines · cpp
1// Simple inheritance case:2// For CBase and CDerived we check:3// - Generation of their vtables (including attributes).4// - Generation of their '_vtable$' data members:5// * Correct scope and attributes6 7namespace NSP {8 struct CBase {9 unsigned B = 1;10 virtual void zero() {}11 virtual int one() { return 1; }12 virtual int two() { return 2; }13 virtual int three() { return 3; }14 };15}16 17struct CDerived : NSP::CBase {18 unsigned D = 2;19 void zero() override {}20 int two() override { return 22; };21 int three() override { return 33; }22};23 24int main() {25 NSP::CBase Base;26 CDerived Derived;27 28 return 0;29}30 31// RUN: %clang_cc1 -triple x86_64-linux -emit-llvm -debug-info-kind=limited -dwarf-version=5 -O0 -disable-llvm-passes %s -o - | FileCheck %s32// RUN: %clang_cc1 -triple x86_64-linux -emit-llvm -debug-info-kind=limited -dwarf-version=5 -O1 -disable-llvm-passes %s -o - | FileCheck %s33// RUN: %clang_cc1 -triple x86_64-mingw -emit-llvm -debug-info-kind=limited -dwarf-version=5 -O0 -disable-llvm-passes %s -o - | FileCheck %s34// RUN: %clang_cc1 -triple x86_64-mingw -emit-llvm -debug-info-kind=limited -dwarf-version=5 -O1 -disable-llvm-passes %s -o - | FileCheck %s35 36// CHECK: $_ZTVN3NSP5CBaseE = comdat any37// CHECK: $_ZTV8CDerived = comdat any38 39// CHECK: @_ZTVN3NSP5CBaseE = linkonce_odr {{.*}}unnamed_addr constant {{.*}}, comdat, align 8, !dbg [[BASE_VTABLE_VAR:![0-9]*]]40// CHECK: @_ZTV8CDerived = linkonce_odr {{.*}}unnamed_addr constant {{.*}}, comdat, align 8, !dbg [[DERIVED_VTABLE_VAR:![0-9]*]]41 42// CHECK: [[BASE_VTABLE_VAR]] = !DIGlobalVariableExpression(var: [[BASE_VTABLE:![0-9]*]], expr: !DIExpression())43// CHECK-NEXT: [[BASE_VTABLE]] = distinct !DIGlobalVariable(name: "_vtable$", linkageName: "_ZTVN3NSP5CBaseE"44 45// CHECK: [[DERIVED_VTABLE_VAR]] = !DIGlobalVariableExpression(var: [[DERIVED_VTABLE:![0-9]*]], expr: !DIExpression())46// CHECK-NEXT: [[DERIVED_VTABLE]] = distinct !DIGlobalVariable(name: "_vtable$", linkageName: "_ZTV8CDerived"47 48// CHECK: [[TYPE:![0-9]*]] = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: null, size: 64)49 50// CHECK: !DIDerivedType(tag: DW_TAG_variable, name: "_vtable$", scope: [[DERIVED:![0-9]*]], file: {{.*}}, baseType: [[TYPE]], flags: DIFlagPrivate | DIFlagArtificial | DIFlagStaticMember)51 52// CHECK: [[DERIVED]] = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "CDerived"53 54// CHECK: [[BASE:![0-9]*]] = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "CBase"55 56// CHECK: !DIDerivedType(tag: DW_TAG_variable, name: "_vtable$", scope: [[BASE]], file: {{.*}}, baseType: [[TYPE]], flags: DIFlagPrivate | DIFlagArtificial | DIFlagStaticMember)57