Advanced RTL Optimization and Logic Synthesis Strategies for High-Performance VLSI Systems

Abstract

This paper surveys recent advances in Register-Transfer Level (RTL) optimization and logic synthesis for high-performance VLSI systems and proposes a hybrid methodology that integrates partition-based rewriting, ML-guided heuristic selection, and multi-objective approximate transformations to optimize area, timing and power. The paper presents a detailed literature review from the last 5–7 years, formalizes the optimization problem, describes the proposed algorithmic flow and mathematical modeling, and reports illustrative comparative results demonstrating the potential benefits and trade-offs of the approach. Finally, a comprehensive comparative analysis, conclusions and directions for future work are provided. Key contributions include (1) a synthesis flow combining partitioning, ML-guided pass selection, and approximate-aware rewriting, (2) a cost-model and optimization algorithm suitable for large designs, and (3) an experimental evaluation (illustrative) and a roadmap for reproducible evaluation on standard benchmarks.