[llvm] Supports viewing class member variables in lambda when using the vs ebugger (PR #71564)

[via llvm-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-debuginfo

Author: None (GkvJwa)

<details>
<summary>Changes</summary>

Use "__this" in DataMemberRecord, make vs debugger can be parsed normally

---
Full diff: https://github.com/llvm/llvm-project/pull/71564.diff


1 Files Affected:

- (modified) llvm/lib/CodeGen/AsmPrinter/CodeViewDebug.cpp (+3) 


``````````diff
diff --git a/llvm/lib/CodeGen/AsmPrinter/CodeViewDebug.cpp b/llvm/lib/CodeGen/AsmPrinter/CodeViewDebug.cpp
index 3a9d5fa3b936e0e..a84ea6e4b2708d5 100644
--- a/llvm/lib/CodeGen/AsmPrinter/CodeViewDebug.cpp
+++ b/llvm/lib/CodeGen/AsmPrinter/CodeViewDebug.cpp
@@ -2605,6 +2605,9 @@ CodeViewDebug::lowerRecordFieldList(const DICompositeType *Ty) {
       MemberBaseType = TypeTable.writeLeafType(BFR);
     }
     uint64_t MemberOffsetInBytes = MemberOffsetInBits / 8;
+    if (Ty->getName().find_first_of("<lambda") != std::string::npos) {
+      MemberName = "__this";
+    }
     DataMemberRecord DMR(Access, MemberBaseType, MemberOffsetInBytes,
                          MemberName);
     ContinuationBuilder.writeMemberType(DMR);

``````````

</details>


https://github.com/llvm/llvm-project/pull/71564