cast no need buffer (#42999)

ba157929 · wanghuancoder · GitHub · 3d9fe71e · ba157929
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python/paddle/utils/code_gen/backward.yaml python/paddle/utils/code_gen/backward.yaml +1 -0

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--- a/python/paddle/utils/code_gen/backward.yaml
+++ b/python/paddle/utils/code_gen/backward.yaml
@@ -229,6 +229,7 @@
  kernel :
    func : cast_grad
    data_type : out_grad
+  no_need_buffer : x

 - backward_api : ceil_grad
  forward : ceil(Tensor x) -> Tensor(out)