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This PR is the resolve two problems in the issue#999, i.e., non_standard_shape input to reshape and reduce_mean.
Three fixes:

Any operator that has a standard shape requirement will add a contiguous input for its input.
Eliminate_contiguous, when computing whether a contiguous can be removed, we should use all the updated args, not just the one that is being checked.
In two optimization in the simplify_reshape, we remove the contiguous in the reshaper name list, since eliminate_contiguous will remove the contiguous if it can be removed.
the solution is add an attribute to the operator that requires standard input shape, then in the auto_contiguous pass, add a contiguous to every input of such operators.

Resolves a problem in parsing the ssd-10 model.

The problem is, after inserting contiguous in the auto_contiguous pass, standard output shape of some operators becomes non-standard. Then, if the next operator requires standard input shape, an exception is throw.

For example, if we pass the following model:
Input (standard shape) -> transpose (transposed) -> softmax (transposed) -> transpose (standard) -> gather.
It works fine, and no contiguous is required.

In the auto_contiguous pass, a contiguous is inserted after the first transpose. Then we need to replace the first transpose with the contiguous and recompute all shapes. When it comes to the gather operator, its input is a transposed shape, and an exception is thrown.

The solution is in the recompute_shape() function. If it is called by the auto_contiguous pass and shape of an instruction is changed, and the shape is non_standard, we do not recompute shape of its output. The reason is: since its output shape is non_standard, a contiguous op will be added after the instruction, which will recompute shape for later operators.

* rename broadcast and multibroadcast output_lens attribute to out_lens attribute, and change tests and source code to reflect the same

* change the reshape attribute from dims to out_lens

* change transpose attribute's name from dims to perm to reflect better meaning

* use permutation instead of perm for transpose

clang formaating

* use dims instead of out_lens for reshape

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* Update test for passes

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* Rewrite simplify_reshapes

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* Rewrite normalize pass

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* Rewrite pooling

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* Rewrite schedule tests

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* Load op when serializing

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* Add missing clip field

* Use make_op almost everywhere

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* More make ops for rnns

* Get rid of spaces

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* Remove operators headers

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* Remove unused op headers

* Increase line threshold

* code backup

* clang format

* change corresponding tool files

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Co-authored-by: mvermeulen <5479696+mvermeulen@users.noreply.github.com>

* Add initial api

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* Add more api

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* Add auto api generation

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* Fix some compilation errors

* Change handle struct

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* Fix reamining compilation errors

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* Simplify using ctype

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* Initial c++ generation

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* Add C++header

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* Add test

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* Add initial tests

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* Try to fix formatting

* Cleanup formatting

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* Fix constructors on the same line

* Fix tests

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* Fix tidy issues

* Fix tidy issues

* Fix naming issue

* Add onnx API to parse buffer

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* Add arguments api

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* Fix verify parameters

* Fix cppcheck issues

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* Add method to get output shapes and bytes

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* Try formatting

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* Improve the test coverage

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* Add print method

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* Fix cppcheck issue

* Fix package dependency

* change migraphx api to support multiple program outputs

* clang format

* change api implementation

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* fix a build error

* change api for correct automatic generation

* clang format

* Add nolint

* Try fix formatting

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* Fix formatting

* code cleanup

* clang format

* fix cppcheck error

* fix review comments

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Co-authored-by: Paul Fultz II <pfultz2@yahoo.com>
Co-authored-by: kahmed10 <15948690+kahmed10@users.noreply.github.com>

* Add compiler options

* Add copy operators

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* Use run_passes in tests

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* Use run_pass in schedule test

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* Add compile_options to get_passes in target

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* Offload copy option

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* Copy using pinned memory

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* Improve performance of gpu copying

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* Dont copy

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* Always make an extra copy

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* Remove unused write op

* Add missing include

* Remove copy_to_gpu function in python api

* Make offload copy disabled by default on C++

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* Fix tidy issues

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* Fix namespace

* Fix python tests

* Turn clang format off since its broken

* Fix compile error on gcc 5

* Remove commented code

change the shape attribute in the broadcast operator to a vector of lens since the type is not used at all.