3 ms·
You must be thinking about GCC "builtins" because there is no emulation for x86 SIMD intrinsics (ie the things in <immintrin.h>).
by BeeOnRope 8y ago
You must be thinking about GCC "builtins" because there is no emulation for x86 SIMD intrinsics (ie the things in <immintrin.h>).
- eesmith 8y agoOh, indeed I was. Thanks for pointing out my error. I was specifically thinking about POPCNT.