Output diff when enabling CMSIS_NN_USE_REQUANTIZE_INLINE_ASSEMBLY

[mansnils]

#171 introduce optional flag CMSIS_NN_USE_REQUANTIZE_INLINE_ASSEMBLY. When this is enabled there are uplifts and as well as downlifts depending on the target and model. For one particular combination that is Arm Cortex-M7 using armclang there was an output diff observed for SSD Mobilenet v3.

[mansnils]

This is hard to fix if you don't have access to the model and the compiler. We may be able to extract the "issue" from the model into a unit test to ease debugging.

[MatthiasHertel80]

The MDK Community Edition license will allow full access to the Cortex-M FVP models and the Arm Compiler. Since this is a non-commercial use-case, this is a perfect scenario to use it.
Install and activate it either using an IDE of your choice: https://www.keil.arm.com/mdk-community/
Or in a GH CI environment as shown here: https://github.com/Arm-Examples/AVH_CI_Template/blob/main/.github/workflows/basic.yml
Or on the command line https://learn.arm.com/learning-paths/embedded-and-microcontrollers/vcpkg-tool-installation/licenseactivation/
This should equip anyone with the tools required to reproduce this.