[clang] [Clang] Fixed invalid virtual copy constructor assertion (PR #124819)

[via cfe-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-clang

Author: Narayan (vortex73)

<details>
<summary>Changes</summary>

- [x] Fix crash on Clang's Assertion Trunk due to Virtual Copy Constructor
Fixed #<!-- -->112909

---
Full diff: https://github.com/llvm/llvm-project/pull/124819.diff


1 Files Affected:

- (modified) clang/lib/Sema/SemaDeclCXX.cpp (+4) 


``````````diff
diff --git a/clang/lib/Sema/SemaDeclCXX.cpp b/clang/lib/Sema/SemaDeclCXX.cpp
index c5a72cf812ebc9..d935292191ea58 100644
--- a/clang/lib/Sema/SemaDeclCXX.cpp
+++ b/clang/lib/Sema/SemaDeclCXX.cpp
@@ -6697,6 +6697,10 @@ static bool canPassInRegisters(Sema &S, CXXRecordDecl *D,
   if (D->isDependentType() || D->isInvalidDecl())
     return false;
 
+  for (const CXXMethodDecl *MD : D->methods()) {
+    if (MD->isInvalidDecl())
+      return false;
+  }
   // Clang <= 4 used the pre-C++11 rule, which ignores move operations.
   // The PS4 platform ABI follows the behavior of Clang 3.2.
   if (CCK == TargetInfo::CCK_ClangABI4OrPS4)

``````````

</details>


https://github.com/llvm/llvm-project/pull/124819