[AST] Fix structural inequivalence of operators

Summary: Operators kind was not checked, so we reported e.g. op- to be equal with op+

Reviewers: shafik, a_sidorin, aaron.ballman

Subscribers: rnkovacs, dkrupp, Szelethus, gamesh411, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D57902

llvm-svn: 353504

1 files changed, 6 insertions, 0 deletions

diff --git a/clang/lib/AST/ASTStructuralEquivalence.cpp b/clang/lib/AST/ASTStructuralEquivalence.cpp
index 9f83c5110f6..4a1f6da14e3 100644
--- a/clang/lib/AST/ASTStructuralEquivalence.cpp
+++ b/clang/lib/AST/ASTStructuralEquivalence.cpp
@@ -1650,6 +1650,12 @@ bool StructuralEquivalenceContext::CheckKindSpecificEquivalence(
     }
   } else if (FunctionDecl *FD1 = dyn_cast<FunctionDecl>(D1)) {
     if (FunctionDecl *FD2 = dyn_cast<FunctionDecl>(D2)) {
+      if (FD1->isOverloadedOperator()) {
+        if (!FD2->isOverloadedOperator())
+          return false;
+        if (FD1->getOverloadedOperator() != FD2->getOverloadedOperator())
+          return false;
+      }
       if (!::IsStructurallyEquivalent(FD1->getIdentifier(),
                                       FD2->getIdentifier()))
         return false;