
Description: The Portable C Compiler (PCC) is an open-source, retargetable C compiler. It supports multiple hardware and software platforms and aims to be simple, portable, fast with light resource usage.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: LLVM (Low Level Virtual Machine) is an open source compiler infrastructure project that provides reusable components for building compiler front ends and back ends. It uses an intermediate representation that allows for optimization and translation to multiple targets.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API