Optimize find for ARM64EC by AlexGuteniev · Pull Request #5597 · microsoft/STL (original) (raw)

Here is a technical note written in 2024 about ARM64EC and x64 emulation. For writing C++ code, the key points are: ARM64EC is aarch64 code. However, during preprocessing, it masquerades as x64 through macros, not ARM64. Therefore, if anyone wants to optimize ARM64EC performance, they only need to be careful not to use AMD64-specific vector intrinsics, as these are provided by softintrin.lib.