https://icyveins7.github.io/tags/intrinsic/Recent content in Intrinsic on icyveins7's blogHugoen-usThis work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.Thu, 30 Jan 2025 20:00:00 +0800https://icyveins7.github.io/posts/2025/01/cross-platform-trigonometric-simd-and-how-the-c-abi-confused-me/Thu, 30 Jan 2025 20:00:00 +0800https://icyveins7.github.io/posts/2025/01/cross-platform-trigonometric-simd-and-how-the-c-abi-confused-me/<blockquote> <p>My small journey in discovering libmvec functions and the C problems I encountered..</p> </blockquote> <p>I was recently working on making an existing Windows-only library of SIMD functions cross-platform i.e. making everything work in Linux. Here I&rsquo;m going to highlight some problems I encountered in the process; hopefully it will help someone if they encounter something similar too.</p> <h1 id="the-windows-msvc-function">The Windows (MSVC) function</h1> <p>Intrinsics are usually tied to compiler implementations. The one that gave me issues was a bunch of trigonometric functions. Let&rsquo;s use the SSE version that works on floats; in MSVC this was implemented as a simple</p>