Merge pull request !6853 from 张清华/master2

Merge pull request !6471 from thlinh/dev_Sep18_fix_AdjustAllReduceMulAdd_pass

Revive tests in lib_test

Code cleaning

Merge pull request !5714 from vlne-v1/change-top-graph

add support for pynative pass

add testcases

Merge pull request !5352 from fary86/refactor_context_interface

This reverts commit 7a7e499475.

add testcase of net of if by if

This reverts commit f3a9fbdd78.

Merge pull request !4698 from Giancarlo/setshape_constmult

Merge pull request !4614 from zhoufeng/code-compile-performance

Signed-off-by: zhoufeng <zhoufeng54@huawei.com>

Merge pull request !2969 from BowenK/fix_reduce_all

Merge pull request !4198 from thlinh/dev_Aug08_eliminate_more_redundant_Max

Merge pull request !2948 from amongo/FixControlFlow

add join for ref

adjust env eliminate to eliminate all env ops

add partial app cache

resolve while endless

fix env eliminate

support for "for while" cases

fix join shape error

Merge pull request !4396 from Kang/opt

Code review

Merge pull request !3696 from Giancarlo/update_adjust_allreduce

Merge pull request !3720 from thlinh/dev_July29_remove_redundant_minmax

Update threshold for rounding when checking expected value in input tensor node

Merge pull request !3270 from thlinh/dev_Jul17_removeSelect