Reland "[llvm][DebugInfo] DWARFv5: static data members declarations are DW_TAG_variable (#72234)"

This was reverted because it broke the OCaml LLVM bindings.
Relanding the original patch but without changing the C-API.
They'll continue to work just fine as they do today. If in the
future there is a need to pass a new tag to the C-API for creating
static members, then we'll make the change to the OCaml bindings
at that time.

Original commit message:
"""
This patch adds the LLVM-side infrastructure to implement DWARFv5 issue
161118.1: "DW_TAG for C++ static data members".

The clang-side of this patch will simply construct the DIDerivedType
with a different DW_TAG.
"""

1 files changed, 4 insertions, 5 deletions

diff --git a/llvm/lib/IR/DIBuilder.cpp b/llvm/lib/IR/DIBuilder.cpp
index 1ce8c17..58a7e07 100644
--- a/llvm/lib/IR/DIBuilder.cpp
+++ b/llvm/lib/IR/DIBuilder.cpp
@@ -405,12 +405,11 @@ DIDerivedType *
 DIBuilder::createStaticMemberType(DIScope *Scope, StringRef Name, DIFile *File,
                                   unsigned LineNumber, DIType *Ty,
                                   DINode::DIFlags Flags, llvm::Constant *Val,
-                                  uint32_t AlignInBits) {
+                                  unsigned Tag, uint32_t AlignInBits) {
   Flags |= DINode::FlagStaticMember;
-  return DIDerivedType::get(VMContext, dwarf::DW_TAG_member, Name, File,
-                            LineNumber, getNonCompileUnitScope(Scope), Ty, 0,
-                            AlignInBits, 0, std::nullopt, Flags,
-                            getConstantOrNull(Val));
+  return DIDerivedType::get(VMContext, Tag, Name, File, LineNumber,
+                            getNonCompileUnitScope(Scope), Ty, 0, AlignInBits,
+                            0, std::nullopt, Flags, getConstantOrNull(Val));
 }
 
 DIDerivedType *