Author: Nikolas Klauser
Date: 2023-06-28T13:34:02-07:00
New Revision: 3cf8b982042e91d9aabb880ccc7a556256187ff9

URL: 
https://github.com/llvm/llvm-project/commit/3cf8b982042e91d9aabb880ccc7a556256187ff9
DIFF: 
https://github.com/llvm/llvm-project/commit/3cf8b982042e91d9aabb880ccc7a556256187ff9.diff

LOG: [clang] Fix checking the equality comparator of base classes in 
__is_trivially_equality_comparable

Fixes #63192

Reviewed By: cor3ntin

Spies: cfe-commits

Differential Revision: https://reviews.llvm.org/D153890

Added: 
    

Modified: 
    clang/lib/AST/Type.cpp
    clang/test/SemaCXX/type-traits.cpp

Removed: 
    


################################################################################
diff  --git a/clang/lib/AST/Type.cpp b/clang/lib/AST/Type.cpp
index 646eba90973f5..7ffed145c5fe5 100644
--- a/clang/lib/AST/Type.cpp
+++ b/clang/lib/AST/Type.cpp
@@ -2667,7 +2667,7 @@ HasNonDeletedDefaultedEqualityComparison(const 
CXXRecordDecl *Decl) {
   return llvm::all_of(Decl->bases(),
                       [](const CXXBaseSpecifier &BS) {
                         if (const auto *RD = 
BS.getType()->getAsCXXRecordDecl())
-                          HasNonDeletedDefaultedEqualityComparison(RD);
+                          return HasNonDeletedDefaultedEqualityComparison(RD);
                         return true;
                       }) &&
          llvm::all_of(Decl->fields(), [](const FieldDecl *FD) {

diff  --git a/clang/test/SemaCXX/type-traits.cpp 
b/clang/test/SemaCXX/type-traits.cpp
index 9bb093e985cfc..ba52ca748fed7 100644
--- a/clang/test/SemaCXX/type-traits.cpp
+++ b/clang/test/SemaCXX/type-traits.cpp
@@ -3264,6 +3264,21 @@ struct NotTriviallyEqualityComparableHasReferenceMember {
 };
 
static_assert(!__is_trivially_equality_comparable(NotTriviallyEqualityComparableHasReferenceMember));
 
+struct NotTriviallyEqualityComparableNonTriviallyComparableBaseBase {
+  int i;
+
+  bool operator==(const 
NotTriviallyEqualityComparableNonTriviallyComparableBaseBase&) const {
+    return true;
+  }
+};
+
+struct NotTriviallyEqualityComparableNonTriviallyComparableBase : 
NotTriviallyEqualityComparableNonTriviallyComparableBaseBase {
+  int i;
+
+  bool operator==(const 
NotTriviallyEqualityComparableNonTriviallyComparableBase&) const = default;
+};
+static_assert(!__is_trivially_equality_comparable(NotTriviallyEqualityComparableNonTriviallyComparableBase));
+
 enum E {
   a,
   b


        
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