Author: Tomohiro Kashiwada Date: 2025-09-14T00:39:33+03:00 New Revision: bf156a2087f4a6d251d57369f6bd363cfa7adb41
URL: https://github.com/llvm/llvm-project/commit/bf156a2087f4a6d251d57369f6bd363cfa7adb41 DIFF: https://github.com/llvm/llvm-project/commit/bf156a2087f4a6d251d57369f6bd363cfa7adb41.diff LOG: [Clang](NFC) Add coverage for VTable debug info (#151818) Add test for: - shows effect of inlining member functions - shows effect of template instantiation methods Make cleaner a bit: - drops unnecessary `REQUIRES` clause - uses `%clang_cc1` instead of `%clang -Xclang` - uses `-O0 -disable-llvm-passes` and `-O1 -disable-llvm-passes` because the optimization level affects the linkage of VTables. Added: clang/test/DebugInfo/CXX/vtable-external.cpp clang/test/DebugInfo/CXX/vtable-template-instantiation.cpp Modified: clang/test/DebugInfo/CXX/vtable-inheritance-diamond.cpp clang/test/DebugInfo/CXX/vtable-inheritance-multiple.cpp clang/test/DebugInfo/CXX/vtable-inheritance-simple-main.cpp clang/test/DebugInfo/CXX/vtable-inheritance-simple.cpp clang/test/DebugInfo/CXX/vtable-inheritance-virtual.cpp Removed: ################################################################################ diff --git a/clang/test/DebugInfo/CXX/vtable-external.cpp b/clang/test/DebugInfo/CXX/vtable-external.cpp new file mode 100644 index 0000000000000..b5b34c4123e3b --- /dev/null +++ b/clang/test/DebugInfo/CXX/vtable-external.cpp @@ -0,0 +1,108 @@ +// For the `CInlined` struct, where all member functions are inlined, we check the following cases: +// - If the definition of its destructor is visible: +// * The vtable is generated with a COMDAT specifier +// * Its '_vtable$' is generated +// - Otherwise: +// * The vtable is declared +// * Its '_vtable$' is NOT generated +// +// For the `CNoInline` strcut, where member functions are defined as non-inline, we check the following: +// - Regardless of whether the definition of its destructor is visible or not: +// * The vtable is generated +// * Its '_vtable$' is generated +// +// For the `CNoFnDef` struct, where member functions are declared only, we check the following: +// - Regardless of whether the definition of its destructor is visible or not: +// # when non-optimized: +// * The vtable is declared +// * Its '_vtable$' is NOT generated +// # when optimized even if no LLVM passes: +// * The vtable is declared as `available_externally` (which is potentially turned into `external` by LLVM passes) +// * Its '_vtable$' is generated + +struct CInlined { + virtual void f1() noexcept {} + virtual void f2() noexcept {} + virtual ~CInlined() noexcept; +}; +#ifndef NO_DTOR_BODY +inline CInlined::~CInlined() noexcept {} +#endif + +struct CNoInline { + virtual void g1() noexcept; + virtual void g2() noexcept; + virtual ~CNoInline() noexcept; +}; + +void CNoInline::g1() noexcept {} +void CNoInline::g2() noexcept {} +#ifndef NO_DTOR_BODY +CNoInline::~CNoInline() noexcept {} +#endif + +struct CNoFnDef { + virtual void h1() noexcept; + virtual void h2() noexcept; + virtual ~CNoFnDef() noexcept; +}; + +#ifndef NO_DTOR_BODY +CNoFnDef::~CNoFnDef() noexcept {} +#endif + +int main() { + CInlined Inlined; + CNoInline NoInline; + CNoFnDef NoFnDef; + + return 0; +} + +// RUN: %clang_cc1 -triple x86_64-linux -emit-llvm -debug-info-kind=limited -dwarf-version=5 -O0 -disable-llvm-passes %s -o - | FileCheck %s -check-prefixes CHECK-HAS-DTOR,CHECK-HAS-DTOR-O0 +// RUN: %clang_cc1 -triple x86_64-linux -emit-llvm -debug-info-kind=limited -dwarf-version=5 -O1 -disable-llvm-passes %s -o - | FileCheck %s -check-prefixes CHECK-HAS-DTOR,CHECK-HAS-DTOR-O1 +// RUN: %clang_cc1 -triple x86_64-linux -emit-llvm -debug-info-kind=limited -dwarf-version=5 -O0 -disable-llvm-passes -DNO_DTOR_BODY %s -o - | FileCheck %s -check-prefixes CHECK-NO-DTOR,CHECK-NO-DTOR-O0 +// RUN: %clang_cc1 -triple x86_64-linux -emit-llvm -debug-info-kind=limited -dwarf-version=5 -O1 -disable-llvm-passes -DNO_DTOR_BODY %s -o - | FileCheck %s -check-prefixes CHECK-NO-DTOR,CHECK-NO-DTOR-O1 + +// CHECK-HAS-DTOR: $_ZTV8CInlined = comdat any +// CHECK-HAS-DTOR-NOT: $_ZTV9CNoInline +// CHECK-HAS-DTOR-NOT: $_ZTV8CNoFnDef + +// CHECK-HAS-DTOR-DAG: @_ZTV8CInlined = linkonce_odr {{.*}}constant {{{ \[[^]]*\] } { \[[^]]*\] \[[^]]*\] }}}, comdat, align 8, !dbg [[INLINED_VTABLE_VAR:![0-9]+]] +// CHECK-HAS-DTOR-DAG: @_ZTV9CNoInline = {{.*}}constant {{{ \[[^]]*\] } { \[[^]]*\] \[[^]]*\] }}}, align 8, !dbg [[NOINLINE_VTABLE_VAR:![0-9]+]] +// CHECK-HAS-DTOR-O0-DAG: @_ZTV8CNoFnDef = external {{.*}}constant {{{ \[[^]]*\] }}}, align 8{{$}} +// CHECK-HAS-DTOR-O1-DAG: @_ZTV8CNoFnDef = available_externally {{.*}}constant {{{ \[[^]]*\] } { \[[^]]*\] \[[^]]*\] }}}, align 8, !dbg [[NOFNDEF_VTABLE_VAR:![0-9]+]] + +// CHECK-HAS-DTOR: !llvm.dbg.cu + +// CHECK-HAS-DTOR-DAG: [[INLINED_VTABLE:![0-9]+]] = distinct !DIGlobalVariable(name: "_vtable$", linkageName: "_ZTV8CInlined" +// CHECK-HAS-DTOR-DAG: [[INLINED_VTABLE_VAR]] = !DIGlobalVariableExpression(var: [[INLINED_VTABLE]], expr: !DIExpression()) +// CHECK-HAS-DTOR-DAG: [[INLINED:![0-9]+]] = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "CInlined" +// CHECK-HAS-DTOR-DAG: !DIDerivedType(tag: DW_TAG_variable, name: "_vtable$", scope: [[INLINED]], file: {{.*}}, baseType: {{![0-9]+}}, flags: DIFlagPrivate | DIFlagArtificial | DIFlagStaticMember) + +// CHECK-HAS-DTOR-DAG: [[NOINLINE_VTABLE:![0-9]+]] = distinct !DIGlobalVariable(name: "_vtable$", linkageName: "_ZTV9CNoInline" +// CHECK-HAS-DTOR-DAG: [[NOINLINE_VTABLE_VAR]] = !DIGlobalVariableExpression(var: [[NOINLINE_VTABLE]], expr: !DIExpression()) +// CHECK-HAS-DTOR-DAG: [[NOINLINE:![0-9]+]] = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "CNoInline" +// CHECK-HAS-DTOR-DAG: !DIDerivedType(tag: DW_TAG_variable, name: "_vtable$", scope: [[NOINLINE]], file: {{.*}}, baseType: {{![0-9]+}}, flags: DIFlagPrivate | DIFlagArtificial | DIFlagStaticMember) + +// CHECK-HAS-DTOR-O1-DAG: [[NOFNDEF_VTABLE:![0-9]+]] = distinct !DIGlobalVariable(name: "_vtable$", linkageName: "_ZTV8CNoFnDef" +// CHECK-HAS-DTOR-O1-DAG: [[NOFNDEF_VTABLE_VAR]] = !DIGlobalVariableExpression(var: [[NOFNDEF_VTABLE]], expr: !DIExpression()) + +// CHECK-NO-DTOR-NOT: $_ZTV8CInlined +// CHECK-NO-DTOR-NOT: $_ZTV9CNoInline +// CHECK-NO-DTOR-NOT: $_ZTV8CNoFnDef + +// CHECK-NO-DTOR-DAG: @_ZTV8CInlined = external {{.*}}constant {{.*}}, align 8{{$}} +// CHECK-NO-DTOR-DAG: @_ZTV9CNoInline = {{.*}}constant {{{ \[[^]]*\] } { \[[^]]*\] \[[^]]*\] }}}, align 8, !dbg [[NOINLINE_VTABLE_VAR:![0-9]+]] +// CHECK-NO-DTOR-O0-DAG: @_ZTV8CNoFnDef = external {{.*}}constant {{{ \[[^]]*\] }}}, align 8{{$}} +// CHECK-NO-DTOR-O1-DAG: @_ZTV8CNoFnDef = available_externally {{.*}}constant {{{ \[[^]]*\] } { \[[^]]*\] \[[^]]*\] }}}, align 8, !dbg [[NOFNDEF_VTABLE_VAR:![0-9]+]] + +// CHECK-NO-DTOR: !llvm.dbg.cu + +// CHECK-NO-DTOR-DAG: [[NOINLINE_VTABLE:![0-9]+]] = distinct !DIGlobalVariable(name: "_vtable$", linkageName: "_ZTV9CNoInline" +// CHECK-NO-DTOR-DAG: [[NOINLINE_VTABLE_VAR]] = !DIGlobalVariableExpression(var: [[NOINLINE_VTABLE]], expr: !DIExpression()) +// CHECK-NO-DTOR-DAG: [[NOINLINE:![0-9]+]] = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "CNoInline" +// CHECK-NO-DTOR-DAG: !DIDerivedType(tag: DW_TAG_variable, name: "_vtable$", scope: [[NOINLINE]], file: {{.*}}, baseType: {{![0-9]+}}, flags: DIFlagPrivate | DIFlagArtificial | DIFlagStaticMember) + +// CHECK-NO-DTOR-O1-DAG: [[NOFNDEF_VTABLE:![0-9]+]] = distinct !DIGlobalVariable(name: "_vtable$", linkageName: "_ZTV8CNoFnDef" +// CHECK-NO-DTOR-O1-DAG: [[NOFNDEF_VTABLE_VAR]] = !DIGlobalVariableExpression(var: [[NOFNDEF_VTABLE]], expr: !DIExpression()) diff --git a/clang/test/DebugInfo/CXX/vtable-inheritance-diamond.cpp b/clang/test/DebugInfo/CXX/vtable-inheritance-diamond.cpp index 5ed1353eebb10..5bf7dc15c46d0 100644 --- a/clang/test/DebugInfo/CXX/vtable-inheritance-diamond.cpp +++ b/clang/test/DebugInfo/CXX/vtable-inheritance-diamond.cpp @@ -1,5 +1,3 @@ -// REQUIRES: target={{x86_64.*-linux.*}} - // Diamond inheritance case: // For CBase, CLeft, CRight and CDerived we check: // - Generation of their vtables (including attributes). @@ -44,17 +42,18 @@ int main() { return 0; } -// RUN: %clang --target=x86_64-linux -Xclang -disable-O0-optnone -Xclang -disable-llvm-passes -emit-llvm -S -g %s -o - | FileCheck %s +// RUN: %clang_cc1 -triple x86_64-linux -emit-llvm -debug-info-kind=limited -dwarf-version=5 -O0 -disable-llvm-passes %s -o - | FileCheck %s +// RUN: %clang_cc1 -triple x86_64-linux -emit-llvm -debug-info-kind=limited -dwarf-version=5 -O1 -disable-llvm-passes %s -o - | FileCheck %s // CHECK: $_ZTVN3NSP5CBaseE = comdat any // CHECK: $_ZTVN5NSP_15CLeftE = comdat any // CHECK: $_ZTVN5NSP_26CRightE = comdat any // CHECK: $_ZTV8CDerived = comdat any -// CHECK: @_ZTVN3NSP5CBaseE = linkonce_odr {{dso_local|hidden}} unnamed_addr constant {{.*}}, comdat, align 8, !dbg [[BASE_VTABLE_VAR:![0-9]*]] -// CHECK: @_ZTVN5NSP_15CLeftE = linkonce_odr {{dso_local|hidden}} unnamed_addr constant {{.*}}, comdat, align 8, !dbg [[LEFT_VTABLE_VAR:![0-9]*]] -// CHECK: @_ZTVN5NSP_26CRightE = linkonce_odr {{dso_local|hidden}} unnamed_addr constant {{.*}}, comdat, align 8, !dbg [[RIGHT_VTABLE_VAR:![0-9]*]] -// CHECK: @_ZTV8CDerived = linkonce_odr {{dso_local|hidden}} unnamed_addr constant {{.*}}, comdat, align 8, !dbg [[DERIVED_VTABLE_VAR:![0-9]*]] +// CHECK: @_ZTVN3NSP5CBaseE = linkonce_odr {{.*}}unnamed_addr constant {{.*}}, comdat, align 8, !dbg [[BASE_VTABLE_VAR:![0-9]*]] +// CHECK: @_ZTVN5NSP_15CLeftE = linkonce_odr {{.*}}unnamed_addr constant {{.*}}, comdat, align 8, !dbg [[LEFT_VTABLE_VAR:![0-9]*]] +// CHECK: @_ZTVN5NSP_26CRightE = linkonce_odr {{.*}}unnamed_addr constant {{.*}}, comdat, align 8, !dbg [[RIGHT_VTABLE_VAR:![0-9]*]] +// CHECK: @_ZTV8CDerived = linkonce_odr {{.*}}unnamed_addr constant {{.*}}, comdat, align 8, !dbg [[DERIVED_VTABLE_VAR:![0-9]*]] // CHECK: [[BASE_VTABLE_VAR]] = !DIGlobalVariableExpression(var: [[BASE_VTABLE:![0-9]*]], expr: !DIExpression()) // CHECK-NEXT: [[BASE_VTABLE]] = distinct !DIGlobalVariable(name: "_vtable$", linkageName: "_ZTVN3NSP5CBaseE" diff --git a/clang/test/DebugInfo/CXX/vtable-inheritance-multiple.cpp b/clang/test/DebugInfo/CXX/vtable-inheritance-multiple.cpp index 23973a35d0e17..3b7e3a74f8eac 100644 --- a/clang/test/DebugInfo/CXX/vtable-inheritance-multiple.cpp +++ b/clang/test/DebugInfo/CXX/vtable-inheritance-multiple.cpp @@ -1,5 +1,3 @@ -// REQUIRES: target={{x86_64.*-linux.*}} - // Multiple inheritance case: // For CBaseOne, CBaseTwo and CDerived we check: // - Generation of their vtables (including attributes). @@ -38,15 +36,16 @@ int main() { return 0; } -// RUN: %clang --target=x86_64-linux -Xclang -disable-O0-optnone -Xclang -disable-llvm-passes -emit-llvm -S -g %s -o - | FileCheck %s +// RUN: %clang_cc1 -triple x86_64-linux -emit-llvm -debug-info-kind=limited -dwarf-version=5 -O0 -disable-llvm-passes %s -o - | FileCheck %s +// RUN: %clang_cc1 -triple x86_64-linux -emit-llvm -debug-info-kind=limited -dwarf-version=5 -O1 -disable-llvm-passes %s -o - | FileCheck %s // CHECK: $_ZTVN5NSP_18CBaseOneE = comdat any // CHECK: $_ZTVN5NSP_28CBaseTwoE = comdat any // CHECK: $_ZTV8CDerived = comdat any -// CHECK: @_ZTVN5NSP_18CBaseOneE = linkonce_odr {{dso_local|hidden}} unnamed_addr constant {{.*}}, comdat, align 8, !dbg [[BASE_ONE_VTABLE_VAR:![0-9]*]] -// CHECK: @_ZTVN5NSP_28CBaseTwoE = linkonce_odr {{dso_local|hidden}} unnamed_addr constant {{.*}}, comdat, align 8, !dbg [[BASE_TWO_VTABLE_VAR:![0-9]*]] -// CHECK: @_ZTV8CDerived = linkonce_odr {{dso_local|hidden}} unnamed_addr constant {{.*}}, comdat, align 8, !dbg [[DERIVED_VTABLE_VAR:![0-9]*]] +// CHECK: @_ZTVN5NSP_18CBaseOneE = linkonce_odr {{.*}}unnamed_addr constant {{.*}}, comdat, align 8, !dbg [[BASE_ONE_VTABLE_VAR:![0-9]*]] +// CHECK: @_ZTVN5NSP_28CBaseTwoE = linkonce_odr {{.*}}unnamed_addr constant {{.*}}, comdat, align 8, !dbg [[BASE_TWO_VTABLE_VAR:![0-9]*]] +// CHECK: @_ZTV8CDerived = linkonce_odr {{.*}}unnamed_addr constant {{.*}}, comdat, align 8, !dbg [[DERIVED_VTABLE_VAR:![0-9]*]] // CHECK: [[BASE_ONE_VTABLE_VAR]] = !DIGlobalVariableExpression(var: [[BASE_ONE_VTABLE:![0-9]*]], expr: !DIExpression()) // CHECK-NEXT: [[BASE_ONE_VTABLE]] = distinct !DIGlobalVariable(name: "_vtable$", linkageName: "_ZTVN5NSP_18CBaseOneE" diff --git a/clang/test/DebugInfo/CXX/vtable-inheritance-simple-main.cpp b/clang/test/DebugInfo/CXX/vtable-inheritance-simple-main.cpp index d64e711dddfa0..bcf8ff73cee69 100644 --- a/clang/test/DebugInfo/CXX/vtable-inheritance-simple-main.cpp +++ b/clang/test/DebugInfo/CXX/vtable-inheritance-simple-main.cpp @@ -1,5 +1,3 @@ -// REQUIRES: target={{x86_64.*-linux.*}} - // Simple inheritance case: // For CBase and CDerived we check: // - Generation of their vtables (including attributes). @@ -86,35 +84,35 @@ int main() { } #endif -// RUN: %clang --target=x86_64-linux -Xclang -disable-O0-optnone -Xclang -disable-llvm-passes -emit-llvm -c -g %s -o %t.simple-base.bc -DBASE_CODE -// RUN: %clang --target=x86_64-linux -Xclang -disable-O0-optnone -Xclang -disable-llvm-passes -emit-llvm -c -g %s -o %t.simple-derived.bc -DDERIVED_CODE -// RUN: %clang --target=x86_64-linux -Xclang -disable-O0-optnone -Xclang -disable-llvm-passes -emit-llvm -c -g %s -o %t.simple-main.bc -DMAIN_CODE +// RUN: %clang_cc1 -triple x86_64-linux -emit-llvm-bc -debug-info-kind=limited -dwarf-version=5 -O0 -disable-llvm-passes %s -o %t.simple-base.bc -DBASE_CODE +// RUN: %clang_cc1 -triple x86_64-linux -emit-llvm-bc -debug-info-kind=limited -dwarf-version=5 -O0 -disable-llvm-passes %s -o %t.simple-derived.bc -DDERIVED_CODE +// RUN: %clang_cc1 -triple x86_64-linux -emit-llvm-bc -debug-info-kind=limited -dwarf-version=5 -O0 -disable-llvm-passes %s -o %t.simple-main.bc -DMAIN_CODE // RUN: llvm-link %t.simple-base.bc %t.simple-derived.bc %t.simple-main.bc -S -o %t.simple-combined.ll // RUN: FileCheck --input-file=%t.simple-combined.ll -check-prefix=CHECK-ONE %s -// RUN: %clang --target=x86_64-linux -Xclang -disable-O0-optnone -Xclang -disable-llvm-passes -emit-llvm -c -g -flto %s -o %t.simple-base.bc -DBASE_CODE -// RUN: %clang --target=x86_64-linux -Xclang -disable-O0-optnone -Xclang -disable-llvm-passes -emit-llvm -c -g -flto %s -o %t.simple-derived.bc -DDERIVED_CODE -// RUN: %clang --target=x86_64-linux -Xclang -disable-O0-optnone -Xclang -disable-llvm-passes -emit-llvm -c -g -flto %s -o %t.simple-main.bc -DMAIN_CODE +// RUN: %clang_cc1 -triple x86_64-linux -emit-llvm-bc -debug-info-kind=limited -dwarf-version=5 -O0 -flto -disable-llvm-passes %s -o %t.simple-base.bc -DBASE_CODE +// RUN: %clang_cc1 -triple x86_64-linux -emit-llvm-bc -debug-info-kind=limited -dwarf-version=5 -O0 -flto -disable-llvm-passes %s -o %t.simple-derived.bc -DDERIVED_CODE +// RUN: %clang_cc1 -triple x86_64-linux -emit-llvm-bc -debug-info-kind=limited -dwarf-version=5 -O0 -flto -disable-llvm-passes %s -o %t.simple-main.bc -DMAIN_CODE // RUN: llvm-link %t.simple-base.bc %t.simple-derived.bc %t.simple-main.bc -S -o %t.simple-combined.ll // RUN: FileCheck --input-file=%t.simple-combined.ll -check-prefix=CHECK-ONE %s -// RUN: %clang --target=x86_64-linux -Xclang -disable-O0-optnone -Xclang -disable-llvm-passes -emit-llvm -c -g %s -o %t.simple-base.bc -DBASE_CODE -DSYMBOL_AT_FILE_SCOPE -// RUN: %clang --target=x86_64-linux -Xclang -disable-O0-optnone -Xclang -disable-llvm-passes -emit-llvm -c -g %s -o %t.simple-derived.bc -DDERIVED_CODE -DSYMBOL_AT_FILE_SCOPE -// RUN: %clang --target=x86_64-linux -Xclang -disable-O0-optnone -Xclang -disable-llvm-passes -emit-llvm -c -g %s -o %t.simple-main.bc -DMAIN_CODE -DSYMBOL_AT_FILE_SCOPE +// RUN: %clang_cc1 -triple x86_64-linux -emit-llvm-bc -debug-info-kind=limited -dwarf-version=5 -O0 -disable-llvm-passes %s -o %t.simple-base.bc -DBASE_CODE -DSYMBOL_AT_FILE_SCOPE +// RUN: %clang_cc1 -triple x86_64-linux -emit-llvm-bc -debug-info-kind=limited -dwarf-version=5 -O0 -disable-llvm-passes %s -o %t.simple-derived.bc -DDERIVED_CODE -DSYMBOL_AT_FILE_SCOPE +// RUN: %clang_cc1 -triple x86_64-linux -emit-llvm-bc -debug-info-kind=limited -dwarf-version=5 -O0 -disable-llvm-passes %s -o %t.simple-main.bc -DMAIN_CODE -DSYMBOL_AT_FILE_SCOPE // RUN: llvm-link %t.simple-base.bc %t.simple-derived.bc %t.simple-main.bc -S -o %t.simple-combined.ll // RUN: FileCheck --input-file=%t.simple-combined.ll -check-prefix=CHECK-TWO %s -// RUN: %clang --target=x86_64-linux -Xclang -disable-O0-optnone -Xclang -disable-llvm-passes -emit-llvm -c -g -flto %s -o %t.simple-base.bc -DBASE_CODE -DSYMBOL_AT_FILE_SCOPE -// RUN: %clang --target=x86_64-linux -Xclang -disable-O0-optnone -Xclang -disable-llvm-passes -emit-llvm -c -g -flto %s -o %t.simple-derived.bc -DDERIVED_CODE -DSYMBOL_AT_FILE_SCOPE -// RUN: %clang --target=x86_64-linux -Xclang -disable-O0-optnone -Xclang -disable-llvm-passes -emit-llvm -c -g -flto %s -o %t.simple-main.bc -DMAIN_CODE -DSYMBOL_AT_FILE_SCOPE +// RUN: %clang_cc1 -triple x86_64-linux -emit-llvm-bc -debug-info-kind=limited -dwarf-version=5 -O0 -flto -disable-llvm-passes %s -o %t.simple-base.bc -DBASE_CODE -DSYMBOL_AT_FILE_SCOPE +// RUN: %clang_cc1 -triple x86_64-linux -emit-llvm-bc -debug-info-kind=limited -dwarf-version=5 -O0 -flto -disable-llvm-passes %s -o %t.simple-derived.bc -DDERIVED_CODE -DSYMBOL_AT_FILE_SCOPE +// RUN: %clang_cc1 -triple x86_64-linux -emit-llvm-bc -debug-info-kind=limited -dwarf-version=5 -O0 -flto -disable-llvm-passes %s -o %t.simple-main.bc -DMAIN_CODE -DSYMBOL_AT_FILE_SCOPE // RUN: llvm-link %t.simple-base.bc %t.simple-derived.bc %t.simple-main.bc -S -o %t.simple-combined.ll // RUN: FileCheck --input-file=%t.simple-combined.ll -check-prefix=CHECK-TWO %s // CHECK-ONE: ${{_ZN3NSP5CBaseC2Ev|_ZN8CDerivedC2Ev}} = comdat any // CHECK-ONE: ${{_ZN3NSP5CBaseC2Ev|_ZN8CDerivedC2Ev}} = comdat any -// CHECK-ONE: @_ZTV8CDerived = {{dso_local|hidden}} unnamed_addr constant {{.*}}, align 8, !dbg [[DERIVED_VTABLE_VAR:![0-9]*]] -// CHECK-ONE: @_ZTVN3NSP5CBaseE = {{dso_local|hidden}} unnamed_addr constant {{.*}}, align 8, !dbg [[BASE_VTABLE_VAR:![0-9]*]] +// CHECK-ONE: @_ZTV8CDerived = {{.*}}unnamed_addr constant {{.*}}, align 8, !dbg [[DERIVED_VTABLE_VAR:![0-9]*]] +// CHECK-ONE: @_ZTVN3NSP5CBaseE = {{.*}}unnamed_addr constant {{.*}}, align 8, !dbg [[BASE_VTABLE_VAR:![0-9]*]] // CHECK-ONE: [[DERIVED_VTABLE_VAR]] = !DIGlobalVariableExpression(var: [[DERIVED_VTABLE:![0-9]*]], expr: !DIExpression()) // CHECK-ONE-NEXT: [[DERIVED_VTABLE]] = distinct !DIGlobalVariable(name: "_vtable$", linkageName: "_ZTV8CDerived" @@ -133,8 +131,8 @@ int main() { // CHECK-TWO: ${{_ZN3NSP5CBaseC2Ev|_ZN8CDerivedC2Ev}} = comdat any // CHECK-TWO: ${{_ZN3NSP5CBaseC2Ev|_ZN8CDerivedC2Ev}} = comdat any -// CHECK-TWO: @_ZTVN3NSP5CBaseE = {{dso_local|hidden}} unnamed_addr constant {{.*}}, align 8, !dbg [[BASE_VTABLE_VAR:![0-9]*]] -// CHECK-TWO: @_ZTV8CDerived = {{dso_local|hidden}} unnamed_addr constant {{.*}}, align 8, !dbg [[DERIVED_VTABLE_VAR:![0-9]*]] +// CHECK-TWO: @_ZTVN3NSP5CBaseE = {{.*}}unnamed_addr constant {{.*}}, align 8, !dbg [[BASE_VTABLE_VAR:![0-9]*]] +// CHECK-TWO: @_ZTV8CDerived = {{.*}}unnamed_addr constant {{.*}}, align 8, !dbg [[DERIVED_VTABLE_VAR:![0-9]*]] // CHECK-TWO: [[BASE_VTABLE_VAR]] = !DIGlobalVariableExpression(var: [[BASE_VTABLE:![0-9]*]], expr: !DIExpression()) // CHECK-TWO-NEXT: [[BASE_VTABLE]] = distinct !DIGlobalVariable(name: "_vtable$", linkageName: "_ZTVN3NSP5CBaseE" diff --git a/clang/test/DebugInfo/CXX/vtable-inheritance-simple.cpp b/clang/test/DebugInfo/CXX/vtable-inheritance-simple.cpp index b24ece1598327..8d8c778dbb04e 100644 --- a/clang/test/DebugInfo/CXX/vtable-inheritance-simple.cpp +++ b/clang/test/DebugInfo/CXX/vtable-inheritance-simple.cpp @@ -28,18 +28,19 @@ int main() { return 0; } -// RUN: %clang_cc1 -triple x86_64-linux -emit-llvm -mrelocation-model pic -pic-is-pie -debug-info-kind=limited -dwarf-version=5 -disable-O0-optnone -disable-llvm-passes %s -o - | FileCheck %s -// RUN: %clang_cc1 -triple x86_64-windows-gnu -emit-llvm -mrelocation-model pic -pic-is-pie -debug-info-kind=limited -dwarf-version=5 -disable-O0-optnone -disable-llvm-passes %s -o - | FileCheck %s --check-prefix=COFF +// RUN: %clang_cc1 -triple x86_64-linux -emit-llvm -debug-info-kind=limited -dwarf-version=5 -O0 -disable-llvm-passes %s -o - | FileCheck %s +// RUN: %clang_cc1 -triple x86_64-linux -emit-llvm -debug-info-kind=limited -dwarf-version=5 -O1 -disable-llvm-passes %s -o - | FileCheck %s +// RUN: %clang_cc1 -triple x86_64-mingw -emit-llvm -debug-info-kind=limited -dwarf-version=5 -O0 -disable-llvm-passes %s -o - | FileCheck %s --check-prefix=COFF // CHECK: $_ZTVN3NSP5CBaseE = comdat any // CHECK: $_ZTV8CDerived = comdat any -// CHECK: @_ZTVN3NSP5CBaseE = linkonce_odr {{dso_local|hidden}} unnamed_addr constant {{.*}}, comdat, align 8, !dbg [[BASE_VTABLE_VAR:![0-9]*]] -// CHECK: @_ZTV8CDerived = linkonce_odr {{dso_local|hidden}} unnamed_addr constant {{.*}}, comdat, align 8, !dbg [[DERIVED_VTABLE_VAR:![0-9]*]] -// COFF: @_ZTVN3NSP5CBaseE = linkonce_odr {{dso_local|hidden}} unnamed_addr constant {{.*}}, comdat, align 8 +// CHECK: @_ZTVN3NSP5CBaseE = linkonce_odr {{.*}}unnamed_addr constant {{.*}}, comdat, align 8, !dbg [[BASE_VTABLE_VAR:![0-9]*]] +// CHECK: @_ZTV8CDerived = linkonce_odr {{.*}}unnamed_addr constant {{.*}}, comdat, align 8, !dbg [[DERIVED_VTABLE_VAR:![0-9]*]] +// COFF: @_ZTVN3NSP5CBaseE = linkonce_odr {{.*}}unnamed_addr constant {{.*}}, comdat, align 8 // COFF-NOT: !dbg // COFF-SAME: {{$}} -// COFF: @_ZTV8CDerived = linkonce_odr {{dso_local|hidden}} unnamed_addr constant {{.*}}, comdat, align 8 +// COFF: @_ZTV8CDerived = linkonce_odr {{.*}}unnamed_addr constant {{.*}}, comdat, align 8 // COFF-NOT: !dbg // COFF-SAME: {{$}} diff --git a/clang/test/DebugInfo/CXX/vtable-inheritance-virtual.cpp b/clang/test/DebugInfo/CXX/vtable-inheritance-virtual.cpp index b01f156b7f654..c3015f0498419 100644 --- a/clang/test/DebugInfo/CXX/vtable-inheritance-virtual.cpp +++ b/clang/test/DebugInfo/CXX/vtable-inheritance-virtual.cpp @@ -1,5 +1,3 @@ -// REQUIRES: target={{x86_64.*-linux.*}} - // Virtual inheritance case: // For CBase, CLeft, CRight and CDerived we check: // - Generation of their vtables (including attributes). @@ -44,17 +42,18 @@ int main() { return 0; } -// RUN: %clang --target=x86_64-linux -Xclang -disable-O0-optnone -Xclang -disable-llvm-passes -emit-llvm -S -g %s -o - | FileCheck %s +// RUN: %clang_cc1 -triple x86_64-linux -emit-llvm -debug-info-kind=limited -dwarf-version=5 -O0 -disable-llvm-passes %s -o - | FileCheck %s +// RUN: %clang_cc1 -triple x86_64-linux -emit-llvm -debug-info-kind=limited -dwarf-version=5 -O1 -disable-llvm-passes %s -o - | FileCheck %s // CHECK: $_ZTVN3NSP5CBaseE = comdat any // CHECK: $_ZTVN5NSP_15CLeftE = comdat any // CHECK: $_ZTVN5NSP_26CRightE = comdat any // CHECK: $_ZTV8CDerived = comdat any -// CHECK: @_ZTVN3NSP5CBaseE = linkonce_odr {{dso_local|hidden}} unnamed_addr constant {{.*}}, comdat, align 8, !dbg [[BASE_VTABLE_VAR:![0-9]*]] -// CHECK: @_ZTVN5NSP_15CLeftE = linkonce_odr {{dso_local|hidden}} unnamed_addr constant {{.*}}, comdat, align 8, !dbg [[LEFT_VTABLE_VAR:![0-9]*]] -// CHECK: @_ZTVN5NSP_26CRightE = linkonce_odr {{dso_local|hidden}} unnamed_addr constant {{.*}}, comdat, align 8, !dbg [[RIGHT_VTABLE_VAR:![0-9]*]] -// CHECK: @_ZTV8CDerived = linkonce_odr {{dso_local|hidden}} unnamed_addr constant {{.*}}, comdat, align 8, !dbg [[DERIVED_VTABLE_VAR:![0-9]*]] +// CHECK: @_ZTVN3NSP5CBaseE = linkonce_odr {{.*}}unnamed_addr constant {{.*}}, comdat, align 8, !dbg [[BASE_VTABLE_VAR:![0-9]*]] +// CHECK: @_ZTVN5NSP_15CLeftE = linkonce_odr {{.*}}unnamed_addr constant {{.*}}, comdat, align 8, !dbg [[LEFT_VTABLE_VAR:![0-9]*]] +// CHECK: @_ZTVN5NSP_26CRightE = linkonce_odr {{.*}}unnamed_addr constant {{.*}}, comdat, align 8, !dbg [[RIGHT_VTABLE_VAR:![0-9]*]] +// CHECK: @_ZTV8CDerived = linkonce_odr {{.*}}unnamed_addr constant {{.*}}, comdat, align 8, !dbg [[DERIVED_VTABLE_VAR:![0-9]*]] // CHECK: [[BASE_VTABLE_VAR]] = !DIGlobalVariableExpression(var: [[BASE_VTABLE:![0-9]*]], expr: !DIExpression()) // CHECK-NEXT: [[BASE_VTABLE]] = distinct !DIGlobalVariable(name: "_vtable$", linkageName: "_ZTVN3NSP5CBaseE" diff --git a/clang/test/DebugInfo/CXX/vtable-template-instantiation.cpp b/clang/test/DebugInfo/CXX/vtable-template-instantiation.cpp new file mode 100644 index 0000000000000..60726d253a686 --- /dev/null +++ b/clang/test/DebugInfo/CXX/vtable-template-instantiation.cpp @@ -0,0 +1,84 @@ +// For the `CTemplate` templated class below, check the following cases: +// - Implicitly instantiated whole class by up-casting (`NOCAST` not defined) +// or implicitly instantiated member functions only (`NOCAST` defined): +// * The vtable is generated with a COMDAT specifier +// * Its '_vtable$' is generated +// - Define explicitly instantiation (`EXPLICIT` defined): +// * The vtable is generated with a COMDAT specifier +// * Its '_vtable$' is generated +// - Declare explicitly instantiation as `extern` (`EXTERN` defined): +// # when non-optimized: +// * The vtable is declared +// * Its '_vtable$' is NOT generated +// # when optimized even if no LLVM passes +// * The vtable is declared as `available_externally` (which is potentially turned into `external` by LLVM passes) +// * Its '_vtable$' is generated + +struct CBase { + virtual void f() noexcept {} +}; + +template <typename T> +struct CTemplate: CBase { + void f() noexcept override; + virtual ~CTemplate() noexcept; +}; +template <typename T> +void CTemplate<T>::f() noexcept {} +template <typename T> +CTemplate<T>::~CTemplate() noexcept {} + +#ifdef EXPLICIT +template struct CTemplate<void>; +#endif +#ifdef EXTERN +extern template struct CTemplate<void>; +#endif + +CTemplate<void> *get(CBase *) noexcept; + +int main() { + CTemplate<void> Template; +#ifdef NOCAST + get(nullptr)->f(); +#else + get(&Template)->f(); +#endif + + return 0; +} + +// RUN: %clang_cc1 -triple x86_64-linux -emit-llvm -debug-info-kind=limited -dwarf-version=5 -O0 -disable-llvm-passes %s -o - | FileCheck %s -check-prefixes IMPLICIT +// RUN: %clang_cc1 -triple x86_64-linux -emit-llvm -debug-info-kind=limited -dwarf-version=5 -O1 -disable-llvm-passes %s -o - | FileCheck %s -check-prefixes IMPLICIT +// RUN: %clang_cc1 -triple x86_64-linux -emit-llvm -debug-info-kind=limited -dwarf-version=5 -O0 -disable-llvm-passes %s -o - -DNOCAST | FileCheck %s -check-prefixes IMPLICIT +// RUN: %clang_cc1 -triple x86_64-linux -emit-llvm -debug-info-kind=limited -dwarf-version=5 -O1 -disable-llvm-passes %s -o - -DNOCAST | FileCheck %s -check-prefixes IMPLICIT +// RUN: %clang_cc1 -triple x86_64-linux -emit-llvm -debug-info-kind=limited -dwarf-version=5 -O0 -disable-llvm-passes %s -o - -DEXPLICIT | FileCheck %s -check-prefixes EXPLICIT +// RUN: %clang_cc1 -triple x86_64-linux -emit-llvm -debug-info-kind=limited -dwarf-version=5 -O1 -disable-llvm-passes %s -o - -DEXPLICIT | FileCheck %s -check-prefixes EXPLICIT +// RUN: %clang_cc1 -triple x86_64-linux -emit-llvm -debug-info-kind=limited -dwarf-version=5 -O0 -disable-llvm-passes %s -o - -DEXTERN | FileCheck %s -check-prefixes EXTERN,EXTERN-O0 +// RUN: %clang_cc1 -triple x86_64-linux -emit-llvm -debug-info-kind=limited -dwarf-version=5 -O1 -disable-llvm-passes %s -o - -DEXTERN | FileCheck %s -check-prefixes EXTERN,EXTERN-O1 + +// IMPLICIT: $_ZTV9CTemplateIvE = comdat any +// IMPLICIT: @_ZTV9CTemplateIvE = linkonce_odr {{.*}}unnamed_addr constant {{{ \[[^]]*\] } { \[[^]]*\] \[[^]]*\] }}}, comdat, align 8, !dbg [[VTABLE_VAR:![0-9]*]] +// IMPLICIT-DAG: [[VTABLE:![0-9]+]] = distinct !DIGlobalVariable(name: "_vtable$", linkageName: "_ZTV9CTemplateIvE" +// IMPLICIT-DAG: !DIGlobalVariableExpression(var: [[VTABLE]], expr: !DIExpression()) +// IMPLICIT-DAG: [[TYPE:![0-9]+]] = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "CTemplate<void>" +// IMPLICIT-DAG: !DIDerivedType(tag: DW_TAG_variable, name: "_vtable$", scope: [[TYPE]], file: {{.*}}, baseType: [[PVOID:![0-9]+]], flags: DIFlagPrivate | DIFlagArtificial | DIFlagStaticMember) +// IMPLICIT-DAG: [[PVOID]] = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: null, size: 64) + +// EXPLICIT: $_ZTV9CTemplateIvE = comdat any +// EXPLICIT: @_ZTV9CTemplateIvE = weak_odr {{.*}}unnamed_addr constant {{{ \[[^]]*\] } { \[[^]]*\] \[[^]]*\] }}}, comdat, align 8, !dbg [[VTABLE_VAR:![0-9]*]] +// EXPLICIT-DAG: [[VTABLE:![0-9]+]] = distinct !DIGlobalVariable(name: "_vtable$", linkageName: "_ZTV9CTemplateIvE" +// EXPLICIT-DAG: [[VTABLE_VAR]] = !DIGlobalVariableExpression(var: [[VTABLE]], expr: !DIExpression()) +// EXPLICIT-DAG: [[TYPE:![0-9]+]] = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "CTemplate<void>" +// EXPLICIT-DAG: !DIDerivedType(tag: DW_TAG_variable, name: "_vtable$", scope: [[TYPE]], file: {{.*}}, baseType: [[PVOID:![0-9]+]], flags: DIFlagPrivate | DIFlagArtificial | DIFlagStaticMember) +// EXPLICIT-DAG: [[PVOID]] = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: null, size: 64) + +// EXTERN-NOT: $_ZTV9CTemplateIvE +// EXTERN-O0: @_ZTV9CTemplateIvE = external {{.*}}unnamed_addr constant {{{ \[[^]]*\] }}}, align 8{{$}} +// EXTERN-O1: @_ZTV9CTemplateIvE = available_externally {{.*}}unnamed_addr constant {{{ \[[^]]*\] } { \[[^]]*\] \[[^]]*\] }}}, align 8, !dbg [[VTABLE_VAR:![0-9]*]] +// EXTERN-O0-NOT: linkageName: "_ZTV9CTemplateIvE" +// EXTERN-O1-DAG: [[VTABLE:![0-9]+]] = distinct !DIGlobalVariable(name: "_vtable$", linkageName: "_ZTV9CTemplateIvE" +// EXTERN-O1-DAG: [[VTABLE_VAR]] = !DIGlobalVariableExpression(var: [[VTABLE]], expr: !DIExpression()) +// EXTERN-O1-DAG: [[TYPE:![0-9]+]] = !DICompositeType(tag: DW_TAG_structure_type, name: "CTemplate<void>" +// EXTERN-O1-DAG: !DIDerivedType(tag: DW_TAG_variable, name: "_vtable$", scope: [[TYPE]], file: {{.*}}, baseType: [[PVOID:![0-9]+]], flags: DIFlagPrivate | DIFlagArtificial | DIFlagStaticMember) +// EXTERN-O1-DAG: [[PVOID]] = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: null, size: 64) _______________________________________________ cfe-commits mailing list [email protected] https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
