* stack fp16 & bf16 support

* unstack fp16 support

* unstack bf16 support

* append stack fp16 ut

* add unstack

* recover unstack cpu kernel

* fix some issue for unstack ut

* delete unuse var

* add check_place

* fix inference err

* add bfp16 test for isfinite

* fixed for ci

* deal with comments

* fixed test

* skip test in cpu

* deal with comments

* fixed for ci

* fixed testcase

* fixed for ci

* fixed for testcase

* Add backend for to_static API

* fix error in generator/type_mapping.py

* support auto generate for op merged_momentum optimizer

* support auto generate for flatten (flatten_contiguous_range)

* add data_type for flatten_grad

* Add output defs for eigh kernel

* fix

* update

* update

* fix

* fix

* Delete the keyword WITH_ASCEND_INT64 in configure.cmake and CMakeList

* try pass Static-Check

* [CINN] Reopen some prim+cinn unittest

* revert scatter for ci

* change cinn test timeout from 120 to 150

* add autogen code support for reverse op

* bug fixed

* add softmax_with_cross_entropybf16 test

* correct defalut value in testBF16/FP16 op

* fix test checkout/grad, add skipif

* support auto generate for op momentum optimizer

* remove momentum_op.* and update signature

* fix dgc momentum op maker error

* remove paddle/infrt/

* delete .lit_test_times.txt

* autogen segment_pool

* delete legacy_dygraph about segment_pool

* remove legacy profiler

* rm test_parallel_executor_profiler

* [CustomOP unittest] Polish unit test, phi->custom

* Change phi->custom in custom_linear_op.cc

* delete paddle/fluid/operators/*_npu.*

* try pass CI

* try pass CI

* add_fp_bf_for_flip_gaussian_random

* forget convert uint

* fix some error

* fix some error

* delete paddle/fluid/operators/*_npu.*

* try pass code-style

* unique id for mesh

* rng ctrl

* support dropout

* register op

* adopt for recompute

* update unitest

* support pp

* add PoissonNLLLoss API

* update unittests

* Fix poisson_nll_loss init and update data type support

* remove type comment

* Update doc string

* Fix doc string erro

* Fix doc string math equation format

* Add float16 and bfloat16 support

* support set master_grad

* move register_hook to auto_cast

* update unittest

* fix fp16 test

* update for review comments

* Support two inputs of multihead attention named qk_multihead

* [Opt Performance] Optimize custom operator performance, reconstruct python API auto-gen, add cache and use const inference

* opt AutoGradMeta implementation

* remove profiler codes

* fix unit test

* change year, 2021->2023

* fix int64_t parse bug

* add autogen code bilinear_tensor_product

* [phi] rm cc file

* autogen softmax_with_cross_entropy

* fix error in softmax_with_cross_entropy version

* add strategy force_sequential_run

* remove flag

* fix

* fix

* fix

* fix

* fix

* fix

* fix

* fix

* fix

* [enforce.h Decouple gflags.h] Move gflags.h from enforce.h to enforce.cc

* Add gflags.h for other files

* Add gflags.h for other files

* Add gflags.h for blas_impl.hip.h

* Add gflags.h for miopen_helper.h