diff options
Diffstat (limited to 'include/tools/simdsupport.hxx')
| -rw-r--r-- | include/tools/simdsupport.hxx | 31 |
1 files changed, 9 insertions, 22 deletions
diff --git a/include/tools/simdsupport.hxx b/include/tools/simdsupport.hxx index 738b34e072db..fa8923bb095f 100644 --- a/include/tools/simdsupport.hxx +++ b/include/tools/simdsupport.hxx @@ -34,34 +34,21 @@ #if defined(_MSC_VER) // VISUAL STUDIO COMPILER -// SSE2 is required for X64 -#if (defined(_M_X64) || defined(_M_IX86_FP) && _M_IX86_FP >= 2) +// With MSVC using -arch is in fact not necessary for being able +// to use CPU intrinsics, code using AVX512F intrinsics will compile +// even if compiled with -arch:AVX, the -arch option really only affects +// instructions generated for C/C++ code. +#if defined(_M_X64) || defined(_M_X86) +// As such, if we're building for X86 or X64, support for these is always available +// with MSVC2019+. #define LO_SSE2_AVAILABLE -#include <intrin.h> -#endif // end SSE2 - -// compiled with /arch:AVX -#if defined(__AVX__) -#ifndef LO_SSE2_AVAILABLE -#define LO_SSE2_AVAILABLE -#include <intrin.h> -#endif #define LO_SSSE3_AVAILABLE #define LO_AVX_AVAILABLE -#include <immintrin.h> -#endif // end defined(__AVX__) - -// compiled with /arch:AVX2 -#if defined(__AVX2__) #define LO_AVX2_AVAILABLE -#include <immintrin.h> -#endif // defined(__AVX2__) - -// compiled with /arch:AVX512F -#if defined(__AVX512F__) #define LO_AVX512F_AVAILABLE +#include <intrin.h> #include <immintrin.h> -#endif // defined(__AVX512F__) +#endif #else // compiler Clang and GCC |