llvm-project/clang/test/CodeGenCXX/debug-info-class-optzns.cpp

27 lines
906 B
C++

// RUN: %clang_cc1 -triple x86_64-unknown_unknown -emit-llvm -debug-info-kind=limited %s -O1 -fno-experimental-new-pass-manager -o - | FileCheck %s
// Ensure class definitions are not emitted to debug info just because the
// vtable is emitted for optimization purposes (as available_externally). The
// class definition debug info should only go where the vtable is actually
// emitted into the object file.
// CHECK: @_ZTV3foo = available_externally
// Verify that this doesn't involve querying for the vtable of types that aren't
// dynamic (that would cause an assertion in the case below)
// CHECK: !DICompositeType(tag: DW_TAG_structure_type, name: "bar<int>"
template <typename> struct bar {};
extern template struct bar<int>;
bar<int> *p1;
bar<int> a;
// CHECK: !DICompositeType(tag: DW_TAG_structure_type, name: "foo"
// CHECK-SAME: DIFlagFwdDecl
struct foo {
virtual void f();
};
foo f;