[libunwind] [flang] [libcxx] [libcxxabi] [lldb] [llvm] [clang] [compiler-rt] [lld] [openmp] [libc] [mlir] [clang-tools-extra] [clang] static operators should evaluate object argument (PR #68485)

[Tianlan Zhou via llvm-commits]

================
@@ -15097,15 +15102,9 @@ ExprResult Sema::CreateOverloadedArraySubscriptExpr(SourceLocation LLoc,
         ExprValueKind VK = Expr::getValueKindForType(ResultTy);
         ResultTy = ResultTy.getNonLValueExprType(Context);
 
-        CallExpr *TheCall;
-        if (Method->isInstance())
-          TheCall = CXXOperatorCallExpr::Create(
-              Context, OO_Subscript, FnExpr.get(), MethodArgs, ResultTy, VK,
-              RLoc, CurFPFeatureOverrides());
-        else
-          TheCall =
-              CallExpr::Create(Context, FnExpr.get(), MethodArgs, ResultTy, VK,
-                               RLoc, CurFPFeatureOverrides());
+        CallExpr *TheCall = CXXOperatorCallExpr::Create(
----------------
SuperSodaSea wrote:

In short, for the following code
```cpp
// struct Foo { static int operator(int a, int b); };
// Foo foo;
foo(1, 2);
```
, the AST is changed from
```
CallExpr
|- operator()
|- a
\- b
```
to
```
CXXOperatorCallExpr
|- operator()
|- foo
|- a
\- b
```
And other situations are not affected.

https://github.com/llvm/llvm-project/pull/68485