[Issue 8047] important opcodes missing from core/simd.d

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=8047

ponce <aliloko at gmail.com> changed:

           What    |Removed                     |Added
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                 CC|                            |aliloko at gmail.com

--- Comment #7 from ponce <aliloko at gmail.com> ---
Hello,

Can't implement the following intrinsics for DMD:

_mm_movemask_ps needs MOVMSKPS support, as Marco Leise said 7 years ago it is
an instruction that return in a general purpose register instead of an XMM
register.

----------------------------------------------------
int _mm_movemask_ps (__m128 a) pure @trusted
{
    static if (DMD_with_DSIMD)
    {
        // suggested API ? This API returning an int doesn't exist in core.simd
        int res =  __simd_int(XMM.MOVMSKPS, a); 
        return res;
    }
    else static if (GDC_with_SSE)
    {
        return __builtin_ia32_movmskps(a);
    }
    else static if (LDC_with_SSE1)
    {
        return __builtin_ia32_movmskps(a);
    }
    else
    {
        int4 ai = cast(int4)a;
        int r = 0;
        if (ai.array[0] < 0) r += 1;
        if (ai.array[1] < 0) r += 2;
        if (ai.array[2] < 0) r += 4;
        if (ai.array[3] < 0) r += 8;
        return r;
    }
}
----------------------------------------------------


Same remark for:
- _mm_movemask_epi8 (pmovmskb), 
- _mm_movemask_pd (movmskpd),

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