Problem description

Hi, I just met an issue when trying to build velox on RISC-V, it reported:

error: reinterpret_cast from 'register_type' (aka 'xsimd::types::detail::rvv_bool<long, 128>') to 'xsimd::batch_bool<double, xsimd::default_arch>::register_type' (aka 'xsimd::types::detail::rvv_bool<double, 128>') is not allowed
   58 |   return reinterpret_cast<
      |          ^~~~~~~~~~~~~~~~~
   59 |       xsimd::batch_bool<double, xsimd::default_arch>::register_type>(
      |       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   60 |       leadingMask64[i].data);
      |       ~~~~~~~~~~~~~~~~~~~~~~

It is because we are trying to reinterpret_cast a bool vector of long to a bool vector of double, but the underlying type is a struct template for RISC-V (see also here).

It works if we change to static_cast.

System information

Velox System Info v0.0.2
Commit: 2c9a42e
CMake Version: 3.26.4
System: Linux-5.15.152.bsk.1-amd64
Arch: x86_64
C++ Compiler: /usr/bin/c++
C++ Compiler Version: 12.2.0
C Compiler: /usr/bin/cc
C Compiler Version: 12.2.0
CMake Prefix Path: /usr/local;/usr;/;/data00/wpc/software/cmake;/usr/local;/usr/X11R6;/usr/pkg;/opt

CMake log

Please see: https://godbolt.org/z/oYvTeoebr