C++26 Shipped a SIMD Library Nobody Asked For | Hacker News

Hacker News debated C++26’s new std::simd, with critics saying it is too limited for serious high-performance SIMD work.

Supporters argued the standard library can still help developers get SIMD gains without learning processor-specific intrinsics.

The discussion revived a classic performance tradeoff: portable abstractions are easier to use, but hand-tuned intrinsics can deliver better specialization and speed.

The debate touched on Boost.SIMD, Eve, NumPy, Google Highway, autovectorization, and x86/ARM differences.