bdffea12d0
forward declarations. Especially with template instantiations, there are legitimate reasons why for declarations might be emitted into a DW_TAG_module skeleton / forward-declaration sub-tree, that are not forward declarations in the sense of that there is a more complete definition over in a .pcm file. The example in the testcase is a constant DW_TAG_member of a DW_TAG_class template instatiation. rdar://problem/43623196 llvm-svn: 341123
60 lines
1.3 KiB
C++
60 lines
1.3 KiB
C++
// RUN: dsymutil -f -oso-prepend-path=%p/../Inputs/modules-pruning \
|
|
// RUN: -y %p/dummy-debug-map.map -o - \
|
|
// RUN: | llvm-dwarfdump --name isRef -p - | FileCheck %s
|
|
|
|
/* Compile with:
|
|
cat >modules.modulemap <<EOF
|
|
module Outer {
|
|
module Template {
|
|
header "template.h"
|
|
export *
|
|
}
|
|
}
|
|
EOF
|
|
clang++ -D TEMPLATE_H -E -o template.h modules-pruning.cpp
|
|
clang++ -c -fcxx-modules -fmodules -fmodule-map-file=modules.modulemap \
|
|
-g -gmodules -fmodules-cache-path=. \
|
|
-Xclang -fdisable-module-hash modules-pruning.cpp -o 1.o
|
|
*/
|
|
|
|
// CHECK: DW_TAG_compile_unit
|
|
// CHECK: DW_TAG_module
|
|
// CHECK: DW_TAG_module
|
|
// CHECK: DW_TAG_class
|
|
// CHECK: DW_TAG_member
|
|
// CHECK: DW_AT_name ("isRef")
|
|
// CHECK: DW_AT_declaration (true)
|
|
// CHECK: DW_AT_const_value (1)
|
|
// CHECK-NOT: DW_TAG
|
|
|
|
#ifdef TEMPLATE_H
|
|
|
|
namespace M {
|
|
struct false_type {
|
|
static const bool value = false;
|
|
};
|
|
struct true_type {
|
|
static const bool value = true;
|
|
};
|
|
|
|
template <class T> struct is_reference : false_type {};
|
|
template <class T> struct is_reference<T&> : true_type {};
|
|
|
|
template<class T>
|
|
class Template {
|
|
public:
|
|
static const bool isRef = is_reference<T>::value;
|
|
Template() {}
|
|
};
|
|
}
|
|
#else
|
|
|
|
#include "template.h"
|
|
|
|
void foo() {
|
|
M::Template<bool&> TB1;
|
|
TB1.isRef;
|
|
}
|
|
|
|
#endif
|