How to reproduce:
1. Download and open the attached project "Compute Shader Tests.zip"
2. Open the play mode
3. Click on the buttons starting from "F1" and ending with "F6" (this will create the different size of the array, also shown in attached video "unity_crash.mp4")
-- Unity crashes/freezes --

Reproducible with: 2019.1.7f1, 2019.2.0b6, 2019.3.0a6

Couldn't test properly on 2018.4.2f1 due to package errors

Crash reproduced on: Windows 10 Pro, Intel(R) Core(TM) i5-4590 CPU @ 3.30GHz (4 CPUs), ~3.3GHZ, NVIDIA GeForce GTX 750 Ti

Notes:
- For more information on what is provided in this test project read up on the attached picture "compute_shaders_test.png";
- The algorithm works fine up to a certain size of the input: image dimensions 400x400 (array size of 160000), after which it crashes.