Substitution for MemoryBarrier() to avoid including <windows.h>

[Epixu]

Preprocessor checks should probably be substituted with SIMDE_* alternatives, but I'm not very familiar with these, so it could use a review. #1193

[Epixu]

In this failure it reached a case where no implementation was available, neither in the original, nor in the wine's winnt.h. Or I may have simply overlooked some of the preprocessor conditions. Is MemoryBarrier() in this case noop?

Edit: Nevermind, missed a branch:

#if defined(__aarch64__) || defined(_M_ARM64)
  #define simde_MemoryBarrier __faststorefence

[mr-c]

Thank you @Epixu !!

Did you see this MSVC-aarch64 build failure?
https://github.com/simd-everywhere/simde/actions/runs/10029846750/job/27718522576?pr=1199#step:5:98

And the appveyor windows builds are also failing
https://ci.appveyor.com/project/nemequ/simde/builds/50254437/job/wt5c148s736j5eg1#L157

[Epixu]

Yes, I'm aware, but my time budget went a bit constrained. I'll eventually finish it, but I'll appreciate any help. I think these are mostly technical mistakes. One of the previous runs had only one failing build (referenced via my previous comment with strikethrough)

[mr-c]

Yes, for when SIMDE_X86_SSE_NO_NATIVE is defined on x86-64 systems; at least

[Epixu]

Tests passed here, but all my x86 builds still failed, so you probably don't cover some of these cases in tests for MSVC:

  #elif defined(SIMDE_ARCH_X86) || defined(SIMDE_ARCH_AMD64) || defined(SIMDE_ARCH_E2K)
    #if !defined(SIMDE_X86_SSE_NO_NATIVE)
      #include <intrin.h>
    #endif

    HEDLEY_ALWAYS_INLINE
    void simde_MemoryBarrier(void) {
      #if defined(SIMDE_X86_SSE_NO_NATIVE)
         ((void)0); // intentionally no-op
      #elif defined(SIMDE_ARCH_AMD64)
        __faststorefence();
      #elif defined(SIMDE_ARCH_IA64)
        __mf();
      #else
        // This case is definitely not convered
        long Barrier;
        __asm { xchg Barrier, eax }
      #endif
    }
  #else

[Epixu]

I believe it is ready for merge @mr-c

[mr-c]

Thank you @Epixu ! I squashed your commit and made some other small changes