From 778ec77be9943e00a9bc1081f80e7f2b9a2cd2ff Mon Sep 17 00:00:00 2001
From: Chen Weihang <chenweihang@baidu.com>
Date: Sun, 1 May 2022 19:54:02 +0800
Subject: [PATCH] remove useless lod copy (#42425)

---
 paddle/phi/core/dense_tensor_impl.cc | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

diff --git a/paddle/phi/core/dense_tensor_impl.cc b/paddle/phi/core/dense_tensor_impl.cc
index 5ee83089589..60b71ca97e1 100644
--- a/paddle/phi/core/dense_tensor_impl.cc
+++ b/paddle/phi/core/dense_tensor_impl.cc
@@ -356,10 +356,15 @@ std::vector<DenseTensor> DenseTensor::Chunk(int64_t chunks,
 
 DenseTensor& DenseTensor::ShareDataWith(const DenseTensor& src) {
   src.check_memory_size();
-  // Preserve LoD
-  auto lod = meta_.lod;
-  *this = src;
-  meta_.lod = lod;
+  holder_ = src.holder_;
+  meta_.is_scalar = src.meta_.is_scalar;
+  meta_.dims = src.meta_.dims;
+  meta_.dtype = src.meta_.dtype;
+  meta_.layout = src.meta_.layout;
+  meta_.offset = src.meta_.offset;
+#ifdef PADDLE_WITH_MKLDNN
+  format_ = src.format_;
+#endif
   return *this;
 }
 
-- 
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