[clang] [clang][OpenMP] Support for reduction clause with array elements as modifier (PR #160846)

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https://github.com/SunilKuravinakop created https://github.com/llvm/llvm-project/pull/160846

Changes to support for array elements in reduction clause e.g. "reduction (+:a[1])"

>From 5e43cb51154479109e6596d83764e3b47183bd16 Mon Sep 17 00:00:00 2001
From: Sunil Kuravinakop <kuravina at pe31.hpc.amslabs.hpecorp.net>
Date: Fri, 26 Sep 2025 03:25:57 -0500
Subject: [PATCH] Changes for array elements in reduction e.g. "reduction
 (+:a[1])"

 	modified:   clang/lib/Sema/SemaOpenMP.cpp
---
 clang/lib/Sema/SemaOpenMP.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/clang/lib/Sema/SemaOpenMP.cpp b/clang/lib/Sema/SemaOpenMP.cpp
index 63a56a6583efc..5a40603ecf320 100644
--- a/clang/lib/Sema/SemaOpenMP.cpp
+++ b/clang/lib/Sema/SemaOpenMP.cpp
@@ -2419,8 +2419,10 @@ VarDecl *SemaOpenMP::isOpenMPCapturedDecl(ValueDecl *D, bool CheckScopeInfo,
       return VD ? VD : Info.second;
     DSAStackTy::DSAVarData DVarTop =
         DSAStack->getTopDSA(D, DSAStack->isClauseParsingMode());
+
     if (DVarTop.CKind != OMPC_unknown && isOpenMPPrivate(DVarTop.CKind) &&
-        (!VD || VD->hasLocalStorage() || !DVarTop.AppliedToPointee))
+        (!VD || VD->hasLocalStorage() ||
+         !(DVarTop.AppliedToPointee && DVarTop.CKind != OMPC_reduction)))
       return VD ? VD : cast<VarDecl>(DVarTop.PrivateCopy->getDecl());
     // Threadprivate variables must not be captured.
     if (isOpenMPThreadPrivate(DVarTop.CKind))