From 0a42db682aa01a66eb99d08063fbc6e6124792f7 Mon Sep 17 00:00:00 2001
From: Craig Topper <craig.topper@sifive.com>
Date: Wed, 21 May 2025 17:13:30 -0700
Subject: [PATCH] [SelectionDAG] Simplify creation of getStoreVP in
 WidenVecOp_STORE. NFC

We can use the offset from the original store instead of creating
a new undef offset.

We didn't check if the offset was undef already so we really shouldn't
drop it if it isn't.
---
 llvm/lib/CodeGen/SelectionDAG/LegalizeVectorTypes.cpp | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/llvm/lib/CodeGen/SelectionDAG/LegalizeVectorTypes.cpp b/llvm/lib/CodeGen/SelectionDAG/LegalizeVectorTypes.cpp
index 59a9dced6cf0..1fd171c24a6f 100644
--- a/llvm/lib/CodeGen/SelectionDAG/LegalizeVectorTypes.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/LegalizeVectorTypes.cpp
@@ -7216,8 +7216,7 @@ SDValue DAGTypeLegalizer::WidenVecOp_STORE(SDNode *N) {
     SDValue EVL = DAG.getElementCount(DL, TLI.getVPExplicitVectorLengthTy(),
                                       StVT.getVectorElementCount());
     return DAG.getStoreVP(ST->getChain(), DL, StVal, ST->getBasePtr(),
-                          DAG.getUNDEF(ST->getBasePtr().getValueType()), Mask,
-                          EVL, StVT, ST->getMemOperand(),
+                          ST->getOffset(), Mask, EVL, StVT, ST->getMemOperand(),
                           ST->getAddressingMode());
   }