From 3f37281474f5f1167b8bb4b5383174aa0b456943 Mon Sep 17 00:00:00 2001
From: wanghuancoder <wanghuan29@baidu.com>
Date: Sat, 7 May 2022 16:13:28 +0800
Subject: [PATCH] add some no need buff (#42556)

---
 python/paddle/utils/code_gen/backward.yaml | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/python/paddle/utils/code_gen/backward.yaml b/python/paddle/utils/code_gen/backward.yaml
index e044447f87c..713b0dba1db 100644
--- a/python/paddle/utils/code_gen/backward.yaml
+++ b/python/paddle/utils/code_gen/backward.yaml
@@ -567,6 +567,7 @@
     param : [x]
   kernel :
     func : expand_grad
+  no_need_buffer : x
 
 - backward_api : expm1_grad
   forward : expm1 (Tensor x) -> Tensor(out)
@@ -820,6 +821,7 @@
   kernel :
     func : layer_norm_grad
     data_type : out_grad
+  no_need_buffer : bias
   optional : scale, bias
 
 - backward_api : leaky_relu_double_grad
@@ -1260,6 +1262,7 @@
     param: [x]
   kernel :
     func : pad3d_grad
+  no_need_buffer : x
 
 - backward_api : pixel_shuffle_grad
   forward : pixel_shuffle (Tensor x, int upscale_factor, str data_format) -> Tensor(out)
@@ -1409,6 +1412,7 @@
     param : [grad_out]
   kernel :
     func : reshape_double_grad
+  no_need_buffer : grad_out
 
 - backward_api : reshape_grad
   forward : reshape_with_xshape (Tensor x, IntArray shape) -> Tensor(out), Tensor(xshape)
@@ -1435,6 +1439,7 @@
   kernel :
     func : roi_align_grad
     data_type : boxes
+  no_need_buffer : x
   optional : boxes_num
 
 - backward_api : roi_pool_grad
@@ -1749,6 +1754,7 @@
     param : [x]
   kernel :
     func : sum_grad
+  no_need_buffer : x
   backward : sum_double_grad
 
 - backward_api : sum_triple_grad
-- 
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