From: David Blaikie <dblaikie@gmail.com>
Date: Thu, 13 Dec 2012 22:29:06 +0000 (+0000)
Subject: Debug Info: Emit vtables pointer members as artificial.
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=c9a9177e699897a71670ae211fa053240f41460e;p=clang

Debug Info: Emit vtables pointer members as artificial.

I wasn't sure where to put the test case for this, but this seemed like as good
a place as any. I had to reorder the tests here to make them legible while
still matching the order of metadata output in the IR file (for some reason
making it virtual changed the ordering).

Relevant commit to fix up LLVM to actually respect 'artificial' member
variables is coming once I write up a test case for it.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@170154 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/CodeGen/CGDebugInfo.cpp b/lib/CodeGen/CGDebugInfo.cpp
index f3468f29c1..844514be27 100644
--- a/lib/CodeGen/CGDebugInfo.cpp
+++ b/lib/CodeGen/CGDebugInfo.cpp
@@ -1199,7 +1199,7 @@ CollectVTableInfo(const CXXRecordDecl *RD, llvm::DIFile Unit,
   unsigned Size = CGM.getContext().getTypeSize(CGM.getContext().VoidPtrTy);
   llvm::DIType VPTR
     = DBuilder.createMemberType(Unit, getVTableName(RD), Unit,
-                                0, Size, 0, 0, 0, 
+                                0, Size, 0, 0, llvm::DIDescriptor::FlagArtificial,
                                 getOrCreateVTablePtrType(Unit));
   EltTys.push_back(VPTR);
 }
diff --git a/test/CodeGenCXX/debug-info-class.cpp b/test/CodeGenCXX/debug-info-class.cpp
index 062227a023..131693b21a 100644
--- a/test/CodeGenCXX/debug-info-class.cpp
+++ b/test/CodeGenCXX/debug-info-class.cpp
@@ -8,6 +8,11 @@ void func(bar *f) { // CHECK: DW_TAG_class_type
 union baz;
 void func(baz *f) { // CHECK: DW_TAG_union_type
 }
+class B { // CHECK: DW_TAG_class_type
+public:
+  virtual ~B();
+// CHECK: metadata !"_vptr$B", {{.*}}, i32 64, metadata !{{.*}}} ; [ DW_TAG_member ]
+};
 struct A { // CHECK: DW_TAG_structure_type
   int one;
   static const int HdrSize = 52; // CHECK: HdrSize
@@ -16,8 +21,8 @@ struct A { // CHECK: DW_TAG_structure_type
     int x = 1;
   }
 };
-class B { // CHECK: DW_TAG_class_type
-};
+
+
 int main() {
   A a;
   B b;