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Add an explicit SSE2 path for batch_bool_constant masks where the three #1372

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Merged
serge-sans-paille merged 1 commit into from
Jul 7, 2026
+10 −0
Merged

Add an explicit SSE2 path for batch_bool_constant masks where the three #1372

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10 changes: 10 additions & 0 deletions include/xsimd/arch/xsimd_sse2.hpp
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Original file line number Diff line number Diff line change
Expand Up @@ -1147,6 +1147,11 @@ namespace xsimd
{
return _mm_loadh_pi(_mm_setzero_ps(), reinterpret_cast<__m64 const*>(mem + 2));
}
else XSIMD_IF_CONSTEXPR(mask.countr_one() == 3)
{
__m128 const lo2 = _mm_castsi128_ps(_mm_loadl_epi64(reinterpret_cast<__m128i const*>(mem)));
return _mm_shuffle_ps(lo2, _mm_load_ss(mem + 2), _MM_SHUFFLE(3, 0, 1, 0));
}
else
{
return load_masked<A>(mem, mask, convert<float> {}, Mode {}, common {});
Expand Down Expand Up @@ -1185,6 +1190,11 @@ namespace xsimd
{
_mm_storeh_pi(reinterpret_cast<__m64*>(mem + 2), src);
}
else XSIMD_IF_CONSTEXPR(mask.countr_one() == 3)
{
_mm_storel_pi(reinterpret_cast<__m64*>(mem), src);
_mm_store_ss(mem + 2, _mm_movehl_ps(src, src));
}
else
{
store_masked<A>(mem, src, mask, Mode {}, common {});
Expand Down
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