Inlining of mathematical functions in HP-UX for Itanium® 2

• Published in: ACM International Conference Proceeding Series; Vol. 37: Proceedings of the international symposium on Code generation and optimization: feedback-directed and runtime optimization; 23-26 Mar. 2003 pp. 135 - 144
• Main Author: Thomas, James W.
• Format: Conference Proceeding
• Language: English
• Published: Washington, DC, USA IEEE Computer Society 23.03.2003
• Series: ACM Conferences
• Subjects: Mathematics of computing > Mathematical analysis > Numerical analysis; Mathematics of computing > Mathematical analysis > Numerical analysis > Arbitrary-precision arithmetic; Mathematics of computing > Mathematical analysis > Numerical analysis > Interval arithmetic; Mathematics of computing > Mathematical software; Software and its engineering > Software notations and tools > Compilers
• ISBN: 9780769519135; 076951913X
• DOI: 10.5555/776261.776276

HP-UX compilers inline mathematical functions for Itanium Processor Family (IPF) systems to improve throughput 4X-8X versus external library calls, achieving speeds comparable to highly tuned vector functions, without requiring the user to code for a vector interface and without sacrificing accuracy or edge-case behaviors. This paper highlights IPF architectural features that support implementation of high-performance, high-quality math functions for inlining. It discusses strategies for utilizing the features and developing inlineable sequences on a large scale, and it presents requisite compiler features and language extensions. Also, this paper describes compiler mechanisms that produce inlineable code and inline it.