Software Engineer Computer Science

Shakil Ahmed

Dhaka, Bangladesh

Ħ +880********** ć ******.******@*****.*** ^ github.com/ahmedshakill Personal Profile

A computer science bachelor passionate about Compilers LLVM/MLIR, GPU, RISCV. Education

Shahjalal University of Science and Technology Sylhet, Bangladesh BSc in Computer Science and Engineering February, 2018 March, 2023

• CGPA : 3.24

• Total Credit Completed : 161

• Graduation Date : March, 2023

Work Experience

Dynamic Solution Innovators Dhaka

Assistant Software Engineer April 2023 current

• Our team verifies RISC V chip design through software simulation. I worked on benchmarking the cycle and instruction count of the design using DhrystoneandCoremark.

• Studied about porting freertos to RISC V and Symmetric Multi Processing with freertos.

• Improved and maintained the HAL as the hardware features kept updating. HAL targeted a simulated hardware. Google Summer of Code 2022 Remote

Intern June 2022 Oct 2022

• Perticipated in GSoC 2022 as a code contributor and worked in the Enzyme project to enable LLVM’s new Pass Manager support for Enzyme. My work focused on enabling Enzyme pass to be used with New Pass Manager of LLVM side by side with the Legacy Pass Manager.

PRs

• https://github.com/google/heir/pull/1058

• https://github.com/google/heir/pull/789

• https://github.com/google/heir/pull/991

• https://github.com/google/heir/pull/765

Projects

• Load Store Analysis Pass: An LLVM based compiler pass to find aliasing load store instructions inside a function. Got familiar with AliasAnalysis passes such as MemoryDependenceAnalysis, MemorySSA. Source is available here.

• RISC V Simulator: A RISC V simulator written using C++17 following OOP principles. It is able to fetch, decode and execute load store, arithmetic and logical shift, arithmetic operations and conditional branching instructions without pipeline support. Source is available here.

• Chip8 Emulator for Android: It is an emulator that emulates chip8 platform written in modern C++ using NDK. Also used SDL2 for graphics support. Used an array of std::function to create a table of methods where methods correspond to each opcode. At runtime opcode from game ROM are read and corresponding method is selected from array and invoked allowing dynamic dispatch. Games written for chip8 platform can be played and enjoyed in android using this emulator. Source available here .

• AsynchronousWeb Server and Client: Asynchronousmulti threadedWebServer using BOOST ASIO, C++17 and CMake which servesmultipleclientssimultaneously. The servercompilesandrunsc++ code provided over http request and returns the result. The Web Server required using CRTP (Curiously recurring template pattern) where a templated object keeps reference to itself to increase the life time of itself (scenarios like, socket waiting to serveaclient), asynchronous programming, lambda functions and smart pointers with other language fundamentals. I hosted the server on heroku in a docker container. Source is available here.

• Modernization of WinBGIm library: Improved WinBGIm graphics library targeting GCC 64bit compiler for windows. The last release build by Borland was around 20 years ago and thus is now incompatible with 64bit MinGW compiler. I gave a new build. Also integrated this into a project with CMake support which is easily usable and thus helpful for beginners in graphics as it requires minimal setup. Source is available here.

Skills

Programming C/C++, Haskell

ISA RISC V, X86, ARM

Testing Catch2, Google Test

Domains LLVM, MLIR, FreeRTOS

Tools CMake, Gradle, Bazel, GDB, Git, vim, tmux, LATEX Soft Skills Problem solving, Time Management, Teamwork, Documentation Languages

English Professional proficiency

Bengali Native proficiency

Hindi Bilingual proficiency

Spanish B1 Intermediate proficiency

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