llvm-project/clang/test/CodeGenCXX/debug-info-class.cpp
Amy Huang aaf1a96408 [DebugInfo] Add size to class declarations in debug info.
This adds the size to forward declared class DITypes, if the size is known.

Fixes an issue where we determine whether to emit fragments based on the
type size, so fragments would sometimes be incorrectly emitted if there
was no size.

Bug: https://bugs.llvm.org/show_bug.cgi?id=47338

Differential Revision: https://reviews.llvm.org/D87062
2020-09-03 15:42:27 -07:00

175 lines
5.4 KiB
C++

struct foo;
void func(foo *f) {
}
class bar;
void func(bar *f) {
}
union baz;
void func(baz *f) {
}
class B {
public:
virtual ~B();
};
B::~B() { extern void mayThrow(); mayThrow();
}
struct C {
static int s;
virtual ~C();
};
C::~C() {
}
struct D {
D();
virtual ~D();
void func() {
}
};
struct E {
E();
virtual ~E();
virtual void func() {
}
};
struct F {
struct inner {
};
static const int i = 2;
virtual ~F();
};
struct G {
virtual void func();
struct inner {
int j;
};
};
struct H {};
struct I : virtual H {};
struct J : I {};
J j;
struct K {
virtual void func() {
}
};
struct A {
int one;
static const int HdrSize = 52;
int two;
A() {
int x = 1;
}
};
void f1() {
D x;
x.func();
E y;
int i = F::i;
F::inner z;
K k;
k.func();
}
int main(int argc, char **argv) {
B b;
G::inner c_i;
if (argc) {
A a;
}
return 0;
}
// RUN: %clang_cc1 -triple x86_64-unknown_unknown -emit-llvm -debug-info-kind=limited -fexceptions -std=c++98 %s -o - | FileCheck -check-prefix=CHECK98 -check-prefix=CHECK %s
// RUN: %clang_cc1 -triple i686-cygwin -emit-llvm -debug-info-kind=limited -fexceptions -std=c++98 %s -o - | FileCheck -check-prefix=CHECK98 -check-prefix=CHECK %s
// RUN: %clang_cc1 -triple armv7l-unknown-linux-gnueabihf -emit-llvm -debug-info-kind=limited -fexceptions -std=c++98 %s -o - | FileCheck -check-prefix=CHECK98 -check-prefix=CHECK %s
// RUN: %clang_cc1 -triple x86_64-unknown_unknown -emit-llvm -debug-info-kind=limited -fexceptions -std=c++11 %s -o - | FileCheck -check-prefix=CHECK11 -check-prefix=CHECK %s
// RUN: %clang_cc1 -triple i686-cygwin -emit-llvm -debug-info-kind=limited -fexceptions -std=c++11 %s -o - | FileCheck -check-prefix=CHECK11 -check-prefix=CHECK %s
// RUN: %clang_cc1 -triple armv7l-unknown-linux-gnueabihf -emit-llvm -debug-info-kind=limited -fexceptions -std=c++11 %s -o - | FileCheck -check-prefix=CHECK11 -check-prefix=CHECK %s
// CHECK98: invoke {{.+}} @_ZN1BD1Ev(%class.B* %b)
// CHECK98-NEXT: unwind label %{{.+}}, !dbg ![[EXCEPTLOC:.*]]
// CHECK11: call {{.+}} @_ZN1BD1Ev(%class.B* %b){{.*}}, !dbg ![[EXCEPTLOC:.*]]
// CHECK: store i32 0, i32* %{{.+}}, !dbg ![[RETLOC:.*]]
// CHECK: [[F:![0-9]*]] = !DICompositeType(tag: DW_TAG_structure_type, name: "F"
// CHECK-SAME: DIFlagFwdDecl
// CHECK-NOT: identifier:
// CHECK-SAME: ){{$}}
// CHECK: !DICompositeType(tag: DW_TAG_structure_type, name: "I"
// CHECK-NOT: DIFlagFwdDecl
// CHECK-SAME: ){{$}}
// CHECK: ![[INT:[0-9]+]] = !DIBasicType(name: "int"
// CHECK: !DICompositeType(tag: DW_TAG_structure_type, name: "foo"
// CHECK: !DICompositeType(tag: DW_TAG_class_type, name: "bar"
// CHECK: !DICompositeType(tag: DW_TAG_union_type, name: "baz"
// CHECK: !DICompositeType(tag: DW_TAG_class_type, name: "B"
// CHECK-NOT: DIFlagFwdDecl
// CHECK-SAME: ){{$}}
// CHECK: !DIDerivedType(tag: DW_TAG_member, name: "_vptr$B",
// CHECK-SAME: DIFlagArtificial
// CHECK: [[C:![0-9]*]] = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "C",
// CHECK-NOT: DIFlagFwdDecl
// CHECK-SAME: elements: [[C_MEM:![0-9]*]]
// CHECK-SAME: vtableHolder: [[C]]
// CHECK-NOT: identifier:
// CHECK-SAME: ){{$}}
// CHECK: [[C_MEM]] = !{[[C_VPTR:![0-9]*]], [[C_S:![0-9]*]], [[C_DTOR:![0-9]*]]}
// CHECK: [[C_VPTR]] = !DIDerivedType(tag: DW_TAG_member, name: "_vptr$C"
// CHECK-SAME: DIFlagArtificial
// CHECK: [[C_S]] = !DIDerivedType(tag: DW_TAG_member, name: "s"
// CHECK-SAME: baseType: ![[INT]]
// CHECK-SAME: DIFlagStaticMember
// CHECK: [[C_DTOR]] = !DISubprogram(name: "~C"
// CHECK: [[D:![0-9]+]] = !DICompositeType(tag: DW_TAG_structure_type, name: "D"
// CHECK-SAME: size:
// CHECK-SAME: DIFlagFwdDecl
// CHECK-NOT: identifier:
// CHECK-SAME: ){{$}}
// CHECK: !DICompositeType(tag: DW_TAG_structure_type, name: "E"
// CHECK-SAME: DIFlagFwdDecl
// CHECK-NOT: identifier:
// CHECK-SAME: ){{$}}
// CHECK: !DICompositeType(tag: DW_TAG_structure_type, name: "K"
// CHECK-SAME: identifier: "_ZTS1K"
// CHECK-SAME: ){{$}}
// CHECK: !DISubprogram(name: "func",{{.*}} scope: [[D]]
// CHECK-SAME: DISPFlagDefinition
// CHECK-SAME: declaration: [[D_FUNC_DECL:![0-9]*]]
// CHECK: [[D_FUNC_DECL]] = !DISubprogram(name: "func",{{.*}} scope: [[D]]
// CHECK: !DICompositeType(tag: DW_TAG_structure_type, name: "inner",{{.*}} line: 50
// CHECK-NOT: DIFlagFwdDecl
// CHECK-SAME: elements: [[G_INNER_MEM:![0-9]*]]
// CHECK-SAME: identifier: "_ZTSN1G5innerE"
// CHECK: !DICompositeType(tag: DW_TAG_structure_type, name: "G"
// CHECK-SAME: DIFlagFwdDecl
// CHECK-NOT: identifier:
// CHECK-SAME: ){{$}}
// CHECK: [[G_INNER_MEM]] = !{[[G_INNER_I:![0-9]*]]}
// CHECK: [[G_INNER_I]] = !DIDerivedType(tag: DW_TAG_member, name: "j"
// CHECK-SAME: baseType: ![[INT]]
// CHECK: !DICompositeType(tag: DW_TAG_structure_type, name: "A"
// CHECK: !DIDerivedType(tag: DW_TAG_member, name: "HdrSize"
//
// CHECK: ![[EXCEPTLOC]] = !DILocation(line: 91,
// CHECK: ![[RETLOC]] = !DILocation(line: 90,