[clang] 5999be0 - [clang] fix RecursiveASTVisitor traversal from type to decl (#132551)

[via cfe-commits]

Author: Matheus Izvekov
Date: 2025-03-22T12:12:24-03:00
New Revision: 5999be0f4770e9dd0f88ee9051a37119c8f5a1e4

URL: https://github.com/llvm/llvm-project/commit/5999be0f4770e9dd0f88ee9051a37119c8f5a1e4
DIFF: https://github.com/llvm/llvm-project/commit/5999be0f4770e9dd0f88ee9051a37119c8f5a1e4.diff

LOG: [clang] fix RecursiveASTVisitor traversal from type to decl (#132551)

Added: 
    

Modified: 
    clang/include/clang/AST/RecursiveASTVisitor.h
    clang/test/SemaCXX/member-pointer.cpp

Removed: 
    


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diff  --git a/clang/include/clang/AST/RecursiveASTVisitor.h b/clang/include/clang/AST/RecursiveASTVisitor.h
index e93d1d8eab56f..0d5d515c0e6f7 100644
--- a/clang/include/clang/AST/RecursiveASTVisitor.h
+++ b/clang/include/clang/AST/RecursiveASTVisitor.h
@@ -1005,7 +1005,9 @@ DEF_TRAVERSE_TYPE(RValueReferenceType,
 
 DEF_TRAVERSE_TYPE(MemberPointerType, {
   TRY_TO(TraverseNestedNameSpecifier(T->getQualifier()));
-  TRY_TO(TraverseDecl(T->getMostRecentCXXRecordDecl()));
+  if (T->isSugared())
+    TRY_TO(TraverseType(
+        QualType(T->getMostRecentCXXRecordDecl()->getTypeForDecl(), 0)));
   TRY_TO(TraverseType(T->getPointeeType()));
 })
 

diff  --git a/clang/test/SemaCXX/member-pointer.cpp b/clang/test/SemaCXX/member-pointer.cpp
index b6ab7d38610c8..3d9dd05755b8c 100644
--- a/clang/test/SemaCXX/member-pointer.cpp
+++ b/clang/test/SemaCXX/member-pointer.cpp
@@ -344,3 +344,14 @@ namespace GH132494 {
   };
   template struct A<E>; // expected-note {{requested here}}
 } // namespace GH132494
+
+namespace GH132401 {
+  template <typename Func> struct CallableHelper {
+    static auto Resolve() -> Func;
+  };
+  struct QIODevice {
+    void d_func() { (void)d_ptr; }
+    int d_ptr;
+  };
+  template struct CallableHelper<void (QIODevice::*)()>;
+} // namespace GH132401