Bataev A. LLVM Compiler for RISC-V Architecture. A Unique Approach...2026

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Bataev A. LLVM Compiler for RISC-V Architecture. A Unique Approach...2026

Textbook in PDF format This book offers a comprehensive introduction to the RISC-V RVV extension and its integration with LLVM-based compilers. It covers the LLVM VPlan-based Loop Vectorizer and SLP Vectorizer, along with additional insights into the clang frontend, OpenMP support, and RVV-specific clang directives provided by SiFive. Given the limited information currently available on RVV and its support in modern compilers, this book fills a crucial gap. RVV introduces a unique approach to vectorization―Vector Length Agnostic (VLA) vectorization―which stands out from the fixed vectors of x86 and the runtime-defined, yet fixed, ARM-based SVE and SVE2 extensions. Readers will gain an understanding of RVV-specific VLA-based vectorization support in LLVM-based compilers, which are still under development. The book also provides early insights into the ongoing support for RVV in LLVM. What You'll Learn - Gain foundational knowledge of RISC-V and the RVV extension. - Learn design and implementation of LLVM vectorizers. - Learn to optimize performance with RVV-specific clang directives. - Explore the unique Vector Length Agnostic (VLA) vectorization. -Discover the differences between RVV and other vector extensions. Who This Book Is For - For the engineers, who would like to get more info about RISC-V in general and RISC-V Vectorextension particularly. - For the developers, trying to get the performance using RVV. - For LLVM compiler developers, trying or learn more about vectorization support in LLVM.4. 4. For the students, who learn new about RISC- V, its extensions, interested in compiler development