SSEAVXoriented

SSEAVXoriented is an open-source toolkit and code generator designed to produce high-performance vectorized code for x86 processors that support the SSE and AVX instruction sets. It provides a domain-specific language for expressing vector operations, a mid-level intermediate representation, and back-end code emitters that generate C or C++ with intrinsics or scalar fallbacks. The project aims to abstract away many low-level SIMD details while delivering performance comparable to hand-written intrinsics.

The architecture of SSEAVXoriented consists of a front-end that parses the vector DSL, a middle representation that captures vector algebra and data layouts, and back-end backends that target SSE2/SSE4.x and AVX/AVX2 instruction sets. It also includes a runtime component to detect CPU capabilities and dispatch the most suitable code path at run time. The code generator supports common vector patterns such as element-wise operations, reductions, and matrix-vector operations, with optional optimizations like loop unrolling and memory-alignment hints.

In practice, SSEAVXoriented is used to accelerate numerical kernels in scientific computing, signal processing, and image processing pipelines. It integrates with standard build systems via a command-line tool and can emit optimized source files for inclusion in larger projects. The project emphasizes portability across x86-64 platforms and provides fallbacks to scalar code when SIMD support is unavailable.

Limitations include dependence on compiler support for intrinsics, potential performance variation across microarchitectures, and the need for careful validation to ensure numerical equivalence. As an evolving project, it invites contributions from researchers and developers interested in SIMD optimization and automated vectorization workflows.