The intra-GCC crises: mapping GCC fragmentation after 2011

Online Banking in the GCC

Embedded in the GCC Compiler

The GCC free compiler is a very large software, compiling source in several languages for many targets on various systems. It can be extended by plugins, which may take advantage of its power to provide extra specific functionality (warnings, optimizations, source refactoring or navigation) by processing various GCC internal representations (Gimple, Tree, ...). Writing plugins in C is a complex...

Automatic Streamization in GCC

Multi-cores and multi-processors became ubiquitous during the last few years, and the trend is to increase the number of simple, power-efficient, and slower cores per chip. One of the results is that the performance of single-threaded applications did not significantly improve, or even declined, on new processors, which heightened the interest in compiler automatic parallelization techniques. O...

Register Rematerialization In GCC

In most modern processor architectures, difference in data access time for values kept in registers as compared to those in memory is quite high. Thus, compilers should implement efficient register allocation strategies to improve the runtime performance of the code. Register rematerialization is a technique to improve register allocation effectively by improving spill code generation. It is of...

Autovectorization in GCC

Vectorization is an optimization technique that has traditionally targeted vector processors. The importance of this optimization has increased in recent years with the introduction of SIMD (single instruction multiple data) extensions to general purpose processors, and with the growing significance of applications that can benefit from this functionality. With the adoption of the new Tree SSA ...