diff --git a/src/util/arch/simde/cpuid_flags.c b/src/util/arch/simde/cpuid_flags.c
new file mode 100644
index 00000000..a2f3758c
--- /dev/null
+++ b/src/util/arch/simde/cpuid_flags.c
@@ -0,0 +1,41 @@
+/*
+ * Copyright (c) 2015-2017, Intel Corporation
+ * Copyright (c) 2020-2023, VectorCamp PC
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *  * Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *  * Neither the name of Intel Corporation nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "util/arch/common/cpuid_flags.h"
+#include "ue2common.h"
+#include "hs_compile.h" // for HS_MODE_ flags
+#include "util/arch.h"
+
+u64a cpuid_flags(void) {
+     return 0;
+}
+
+u32 cpuid_tune(void) {
+    return HS_TUNE_FAMILY_GENERIC;
+}
diff --git a/src/util/arch/simde/simd_utils.h b/src/util/arch/simde/simd_utils.h
new file mode 100644
index 00000000..d241f87c
--- /dev/null
+++ b/src/util/arch/simde/simd_utils.h
@@ -0,0 +1,377 @@
+/*
+ * Copyright (c) 2015-2020, Intel Corporation
+ * Copyright (c) 2020-2021, VectorCamp PC
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *  * Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *  * Neither the name of Intel Corporation nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/** \file
+ * \brief SIMD types and primitive operations.
+ */
+
+#ifndef ARCH_SIMDE_SIMD_UTILS_H
+#define ARCH_SIMDE_SIMD_UTILS_H
+
+#include "ue2common.h"
+#include "util/simd_types.h"
+#include "util/unaligned.h"
+#include "util/intrinsics.h"
+
+#include <string.h> // for memcpy
+
+#define ZEROES_8 0, 0, 0, 0, 0, 0, 0, 0
+#define ZEROES_31 ZEROES_8, ZEROES_8, ZEROES_8, 0, 0, 0, 0, 0, 0, 0
+#define ZEROES_32 ZEROES_8, ZEROES_8, ZEROES_8, ZEROES_8
+
+/** \brief LUT for the mask1bit functions. */
+ALIGN_CL_DIRECTIVE static const u8 simd_onebit_masks[] = {
+    ZEROES_32, ZEROES_32,
+    ZEROES_31, 0x01, ZEROES_32,
+    ZEROES_31, 0x02, ZEROES_32,
+    ZEROES_31, 0x04, ZEROES_32,
+    ZEROES_31, 0x08, ZEROES_32,
+    ZEROES_31, 0x10, ZEROES_32,
+    ZEROES_31, 0x20, ZEROES_32,
+    ZEROES_31, 0x40, ZEROES_32,
+    ZEROES_31, 0x80, ZEROES_32,
+    ZEROES_32, ZEROES_32,
+};
+
+static really_inline m128 ones128(void) {
+    return (m128) _mm_set1_epi8(0xFF);
+}
+
+static really_inline m128 zeroes128(void) {
+    return (m128) _mm_setzero_si128();
+}
+
+/** \brief Bitwise not for m128*/
+static really_inline m128 not128(m128 a) {
+    return (m128) _mm_xor_si128(a, ones128());
+}
+
+/** \brief Return 1 if a and b are different otherwise 0 */
+static really_inline int diff128(m128 a, m128 b) {
+    return (_mm_movemask_epi8(_mm_cmpeq_epi8(a, b)) ^ 0xffff);
+}
+
+static really_inline int isnonzero128(m128 a) {
+    return !!diff128(a, zeroes128());
+}
+
+/**
+ * "Rich" version of diff128(). Takes two vectors a and b and returns a 4-bit
+ * mask indicating which 32-bit words contain differences.
+ */
+static really_inline u32 diffrich128(m128 a, m128 b) {
+    a = _mm_cmpeq_epi32(a, b);
+    return ~(_mm_movemask_ps(_mm_castsi128_ps(a))) & 0xf;
+}
+
+/**
+ * "Rich" version of diff128(), 64-bit variant. Takes two vectors a and b and
+ * returns a 4-bit mask indicating which 64-bit words contain differences.
+ */
+static really_inline u32 diffrich64_128(m128 a, m128 b) {
+    a = _mm_cmpeq_epi64(a, b);
+    return ~(_mm_movemask_ps(_mm_castsi128_ps(a))) & 0x5;
+}
+
+static really_really_inline
+m128 lshift64_m128(m128 a, unsigned b) {
+    return _mm_slli_epi64(a, b);
+}
+
+#define rshift64_m128(a, b) _mm_srli_epi64((a), (b))
+#define eq128(a, b)      _mm_cmpeq_epi8((a), (b))
+#define movemask128(a)  ((u32)_mm_movemask_epi8((a)))
+
+static really_inline m128 set1_16x8(u8 c) {
+    return _mm_set1_epi8(c);
+}
+
+static really_inline m128 set1_4x32(u32 c) {
+    return _mm_set1_epi32(c);
+}
+
+static really_inline m128 set1_2x64(u64a c) {
+    return _mm_set1_epi64x(c);
+}
+
+static really_inline u32 movd(const m128 in) {
+    return _mm_cvtsi128_si32(in);
+}
+
+static really_inline u64a movq(const m128 in) {
+    return _mm_cvtsi128_si64(in);
+}
+
+/* another form of movq */
+static really_inline
+m128 load_m128_from_u64a(const u64a *p) {
+    return _mm_set_epi64x(0LL, *p);
+}
+
+#define CASE_RSHIFT_VECTOR(a, count)  case count: return _mm_srli_si128((m128)(a), (count)); break;
+
+static really_inline
+m128 rshiftbyte_m128(const m128 a, int count_immed) {
+    switch (count_immed) {
+    case 0: return a; break;
+    CASE_RSHIFT_VECTOR(a, 1);
+    CASE_RSHIFT_VECTOR(a, 2);
+    CASE_RSHIFT_VECTOR(a, 3);
+    CASE_RSHIFT_VECTOR(a, 4);
+    CASE_RSHIFT_VECTOR(a, 5);
+    CASE_RSHIFT_VECTOR(a, 6);
+    CASE_RSHIFT_VECTOR(a, 7);
+    CASE_RSHIFT_VECTOR(a, 8);
+    CASE_RSHIFT_VECTOR(a, 9);
+    CASE_RSHIFT_VECTOR(a, 10);
+    CASE_RSHIFT_VECTOR(a, 11);
+    CASE_RSHIFT_VECTOR(a, 12);
+    CASE_RSHIFT_VECTOR(a, 13);
+    CASE_RSHIFT_VECTOR(a, 14);
+    CASE_RSHIFT_VECTOR(a, 15);
+    default: return zeroes128(); break;
+    }
+}
+#undef CASE_RSHIFT_VECTOR
+
+#define CASE_LSHIFT_VECTOR(a, count)  case count: return _mm_slli_si128((m128)(a), (count)); break;
+
+static really_inline
+m128 lshiftbyte_m128(const m128 a, int count_immed) {
+    switch (count_immed) {
+    case 0: return a; break;
+    CASE_LSHIFT_VECTOR(a, 1);
+    CASE_LSHIFT_VECTOR(a, 2);
+    CASE_LSHIFT_VECTOR(a, 3);
+    CASE_LSHIFT_VECTOR(a, 4);
+    CASE_LSHIFT_VECTOR(a, 5);
+    CASE_LSHIFT_VECTOR(a, 6);
+    CASE_LSHIFT_VECTOR(a, 7);
+    CASE_LSHIFT_VECTOR(a, 8);
+    CASE_LSHIFT_VECTOR(a, 9);
+    CASE_LSHIFT_VECTOR(a, 10);
+    CASE_LSHIFT_VECTOR(a, 11);
+    CASE_LSHIFT_VECTOR(a, 12);
+    CASE_LSHIFT_VECTOR(a, 13);
+    CASE_LSHIFT_VECTOR(a, 14);
+    CASE_LSHIFT_VECTOR(a, 15);
+    default: return zeroes128(); break;
+    }
+}
+#undef CASE_LSHIFT_VECTOR
+
+#define extract32from128(a, imm) _mm_extract_epi32(a, imm)
+#define extract64from128(a, imm) _mm_extract_epi64(a, imm)
+
+static really_inline m128 add128(m128 a, m128 b) {
+    return _mm_add_epi64(a, b);
+}
+
+static really_inline m128 and128(m128 a, m128 b) {
+    return _mm_and_si128(a,b);
+}
+
+static really_inline m128 xor128(m128 a, m128 b) {
+    return _mm_xor_si128(a,b);
+}
+
+static really_inline m128 or128(m128 a, m128 b) {
+    return _mm_or_si128(a,b);
+}
+
+static really_inline m128 andnot128(m128 a, m128 b) {
+    return _mm_andnot_si128(a, b);
+}
+
+// aligned load
+static really_inline m128 load128(const void *ptr) {
+    assert(ISALIGNED_N(ptr, alignof(m128)));
+    ptr = vectorscan_assume_aligned(ptr, 16);
+    return _mm_load_si128((const m128 *)ptr);
+}
+
+// aligned store
+static really_inline void store128(void *ptr, m128 a) {
+    assert(ISALIGNED_N(ptr, alignof(m128)));
+    ptr = vectorscan_assume_aligned(ptr, 16);
+    *(m128 *)ptr = a;
+}
+
+// unaligned load
+static really_inline m128 loadu128(const void *ptr) {
+    return _mm_loadu_si128((const m128 *)ptr);
+}
+
+// unaligned store
+static really_inline void storeu128(void *ptr, m128 a) {
+    _mm_storeu_si128 ((m128 *)ptr, a);
+}
+
+// packed unaligned store of first N bytes
+static really_inline
+void storebytes128(void *ptr, m128 a, unsigned int n) {
+    assert(n <= sizeof(a));
+    memcpy(ptr, &a, n);
+}
+
+// packed unaligned load of first N bytes, pad with zero
+static really_inline
+m128 loadbytes128(const void *ptr, unsigned int n) {
+    m128 a = zeroes128();
+    assert(n <= sizeof(a));
+    memcpy(&a, ptr, n);
+    return a;
+}
+
+static really_inline
+m128 mask1bit128(unsigned int n) {
+    assert(n < sizeof(m128) * 8);
+    u32 mask_idx = ((n % 8) * 64) + 95;
+    mask_idx -= n / 8;
+    return loadu128(&simd_onebit_masks[mask_idx]);
+}
+
+// switches on bit N in the given vector.
+static really_inline
+void setbit128(m128 *ptr, unsigned int n) {
+    *ptr = or128(mask1bit128(n), *ptr);
+}
+
+// switches off bit N in the given vector.
+static really_inline
+void clearbit128(m128 *ptr, unsigned int n) {
+    *ptr = andnot128(mask1bit128(n), *ptr);
+}
+
+// tests bit N in the given vector.
+static really_inline
+char testbit128(m128 val, unsigned int n) {
+    const m128 mask = mask1bit128(n);
+#if defined(HAVE_SSE41)
+    return !_mm_testz_si128(mask, val);
+#else
+    return isnonzero128(and128(mask, val));
+#endif
+}
+
+// offset must be an immediate
+#define palignr_imm(r, l, offset) _mm_alignr_epi8(r, l, offset)
+
+static really_inline
+m128 pshufb_m128(m128 a, m128 b) {
+    return _mm_shuffle_epi8(a, b);
+}
+
+#define CASE_ALIGN_VECTORS(a, b, offset)  case offset: return palignr_imm((m128)(a), (m128)(b), (offset)); break;
+
+static really_really_inline
+m128 palignr_sw(m128 r, m128 l, int offset) {
+    switch (offset) {
+    case 0: return l; break;
+    CASE_ALIGN_VECTORS(r, l, 1);
+    CASE_ALIGN_VECTORS(r, l, 2);
+    CASE_ALIGN_VECTORS(r, l, 3);
+    CASE_ALIGN_VECTORS(r, l, 4);
+    CASE_ALIGN_VECTORS(r, l, 5);
+    CASE_ALIGN_VECTORS(r, l, 6);
+    CASE_ALIGN_VECTORS(r, l, 7);
+    CASE_ALIGN_VECTORS(r, l, 8);
+    CASE_ALIGN_VECTORS(r, l, 9);
+    CASE_ALIGN_VECTORS(r, l, 10);
+    CASE_ALIGN_VECTORS(r, l, 11);
+    CASE_ALIGN_VECTORS(r, l, 12);
+    CASE_ALIGN_VECTORS(r, l, 13);
+    CASE_ALIGN_VECTORS(r, l, 14);
+    CASE_ALIGN_VECTORS(r, l, 15);
+    case 16: return r; break;
+    default:
+	    return zeroes128();
+	    break;
+    }
+}
+#undef CASE_ALIGN_VECTORS
+
+static really_really_inline
+m128 palignr(m128 r, m128 l, int offset) {
+#if defined(HAVE__BUILTIN_CONSTANT_P)
+    if (__builtin_constant_p(offset)) {
+       return palignr_imm(r, l, offset);
+    }
+#endif
+    return palignr_sw(r, l, offset);
+}
+
+static really_inline
+m128 variable_byte_shift_m128(m128 in, s32 amount) {
+    assert(amount >= -16 && amount <= 16);
+    if (amount < 0) {
+        return palignr(zeroes128(), in, -amount);
+    } else {
+        return palignr(in, zeroes128(), 16 - amount);
+    }
+}
+/*
+static really_inline
+m128 variable_byte_shift_m128(m128 in, s32 amount) {
+    assert(amount >= -16 && amount <= 16);
+    m128 shift_mask = loadu128(vbs_mask_data + 16 - amount);
+    return pshufb_m128(in, shift_mask);
+}*/
+
+static really_inline
+m128 max_u8_m128(m128 a, m128 b) {
+    return _mm_max_epu8(a, b);
+}
+
+static really_inline
+m128 min_u8_m128(m128 a, m128 b) {
+    return _mm_min_epu8(a, b);
+}
+
+static really_inline
+m128 sadd_u8_m128(m128 a, m128 b) {
+    return _mm_adds_epu8(a, b);
+}
+
+static really_inline
+m128 sub_u8_m128(m128 a, m128 b) {
+    return _mm_sub_epi8(a, b);
+}
+
+static really_inline
+m128 set4x32(u32 x3, u32 x2, u32 x1, u32 x0) {
+    return _mm_set_epi32(x3, x2, x1, x0);
+}
+
+static really_inline
+m128 set2x64(u64a hi, u64a lo) {
+    return _mm_set_epi64x(hi, lo);
+}
+
+#endif // ARCH_SIMDE_SIMD_UTILS_H
diff --git a/src/util/supervector/arch/simde/impl.cpp b/src/util/supervector/arch/simde/impl.cpp
new file mode 100644
index 00000000..b1c9b631
--- /dev/null
+++ b/src/util/supervector/arch/simde/impl.cpp
@@ -0,0 +1,530 @@
+/*
+ * Copyright (c) 2015-2017, Intel Corporation
+ * Copyright (c) 2020-2021, VectorCamp PC
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *  * Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *  * Neither the name of Intel Corporation nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef SIMD_IMPL_HPP
+#define SIMD_IMPL_HPP
+
+#include <cstdint>
+#include <cstdio>
+
+#include "ue2common.h"
+#include "util/arch.h"
+#include "util/unaligned.h"
+#include "util/supervector/supervector.hpp"
+
+template<>
+really_inline SuperVector<16>::SuperVector(SuperVector const &other)
+{
+    u.v128[0] = other.u.v128[0];
+}
+
+template<>
+really_inline SuperVector<16>::SuperVector(typename base_type::type const v)
+{
+    u.v128[0] = v;
+};
+
+template<>
+template<>
+really_inline SuperVector<16>::SuperVector(int8_t const other)
+{
+    u.v128[0] = _mm_set1_epi8(other);
+}
+
+template<>
+template<>
+really_inline SuperVector<16>::SuperVector(uint8_t const other)
+{
+    u.v128[0] = _mm_set1_epi8(static_cast<int8_t>(other));
+}
+
+template<>
+template<>
+really_inline SuperVector<16>::SuperVector(int16_t const other)
+{
+    u.v128[0] = _mm_set1_epi16(other);
+}
+
+template<>
+template<>
+really_inline SuperVector<16>::SuperVector(uint16_t const other)
+{
+    u.v128[0] = _mm_set1_epi16(static_cast<int16_t>(other));
+}
+
+template<>
+template<>
+really_inline SuperVector<16>::SuperVector(int32_t const other)
+{
+    u.v128[0] = _mm_set1_epi32(other);
+}
+
+template<>
+template<>
+really_inline SuperVector<16>::SuperVector(uint32_t const other)
+{
+    u.v128[0] = _mm_set1_epi32(static_cast<int32_t>(other));
+}
+
+template<>
+template<>
+really_inline SuperVector<16>::SuperVector(int64_t const other)
+{
+    u.v128[0] = _mm_set1_epi64x(other);
+}
+
+template<>
+template<>
+really_inline SuperVector<16>::SuperVector(uint64_t const other)
+{
+    u.v128[0] = _mm_set1_epi64x(static_cast<int64_t>(other));
+}
+
+// Constants
+template<>
+really_inline SuperVector<16> SuperVector<16>::Ones()
+{
+    return {_mm_set1_epi8(0xFF)};
+}
+
+template<>
+really_inline SuperVector<16> SuperVector<16>::Zeroes(void)
+{
+    return {_mm_set1_epi8(0)};
+}
+
+// Methods
+
+template <>
+really_inline void SuperVector<16>::operator=(SuperVector<16> const &other)
+{
+    u.v128[0] = other.u.v128[0];
+}
+
+template <>
+really_inline SuperVector<16> SuperVector<16>::operator&(SuperVector<16> const &b) const
+{
+    return {_mm_and_si128(u.v128[0], b.u.v128[0])};
+}
+
+template <>
+really_inline SuperVector<16> SuperVector<16>::operator|(SuperVector<16> const &b) const
+{
+    return {_mm_or_si128(u.v128[0], b.u.v128[0])};
+}
+
+template <>
+really_inline SuperVector<16> SuperVector<16>::operator^(SuperVector<16> const &b) const
+{
+    return {_mm_xor_si128(u.v128[0], b.u.v128[0])};
+}
+
+template <>
+really_inline SuperVector<16> SuperVector<16>::operator!() const
+{
+    return {_mm_xor_si128(u.v128[0], u.v128[0])};
+}
+
+template <>
+really_inline SuperVector<16> SuperVector<16>::opandnot(SuperVector<16> const &b) const
+{
+    return {_mm_andnot_si128(u.v128[0], b.u.v128[0])};
+}
+
+template <>
+really_inline SuperVector<16> SuperVector<16>::operator==(SuperVector<16> const &b) const
+{
+    return {_mm_cmpeq_epi8(u.v128[0], b.u.v128[0])};
+}
+
+template <>
+really_inline SuperVector<16> SuperVector<16>::operator!=(SuperVector<16> const &b) const
+{
+    return !(*this == b);
+}
+
+template <>
+really_inline SuperVector<16> SuperVector<16>::operator>(SuperVector<16> const &b) const
+{
+    return {_mm_cmpgt_epi8(u.v128[0], b.u.v128[0])};
+}
+
+template <>
+really_inline SuperVector<16> SuperVector<16>::operator<(SuperVector<16> const &b) const
+{
+    return {_mm_cmplt_epi8(u.v128[0], b.u.v128[0])};
+}
+
+template <>
+really_inline SuperVector<16> SuperVector<16>::operator>=(SuperVector<16> const &b) const
+{
+    return !(*this < b);
+}
+
+template <>
+really_inline SuperVector<16> SuperVector<16>::operator<=(SuperVector<16> const &b) const
+{
+    return !(*this > b);
+}
+
+template <>
+really_inline SuperVector<16> SuperVector<16>::eq(SuperVector<16> const &b) const
+{
+    return (*this == b);
+}
+
+template <>
+really_inline typename SuperVector<16>::comparemask_type
+SuperVector<16>::comparemask(void) const {
+    return (u32)_mm_movemask_epi8(u.v128[0]);
+}
+
+template <>
+really_inline typename SuperVector<16>::comparemask_type
+SuperVector<16>::eqmask(SuperVector<16> const b) const {
+    return eq(b).comparemask();
+}
+
+template <> really_inline u32 SuperVector<16>::mask_width() { return 1; }
+
+template <>
+really_inline typename SuperVector<16>::comparemask_type
+SuperVector<16>::iteration_mask(
+    typename SuperVector<16>::comparemask_type mask) {
+    return mask;
+}
+
+// template <>
+// template<uint8_t N>
+// really_inline SuperVector<16> SuperVector<16>::vshl_8_imm() const
+// {
+//     const uint8_t i = N;
+//     return {_mm_slli_epi8(u.v128[0], i)};
+// }
+
+template <>
+template<uint8_t N>
+really_inline SuperVector<16> SuperVector<16>::vshl_16_imm() const
+{
+    return {_mm_slli_epi16(u.v128[0], N)};
+}
+
+template <>
+template<uint8_t N>
+really_inline SuperVector<16> SuperVector<16>::vshl_32_imm() const
+{
+    return {_mm_slli_epi32(u.v128[0], N)};
+}
+
+template <>
+template<uint8_t N>
+really_inline SuperVector<16> SuperVector<16>::vshl_64_imm() const
+{
+    return {_mm_slli_epi64(u.v128[0], N)};
+}
+
+template <>
+template<uint8_t N>
+really_inline SuperVector<16> SuperVector<16>::vshl_128_imm() const
+{
+    return {_mm_slli_si128(u.v128[0], N)};
+}
+
+template <>
+template<uint8_t N>
+really_inline SuperVector<16> SuperVector<16>::vshl_imm() const
+{
+    return vshl_128_imm<N>();
+}
+
+// template <>
+// template<uint8_t N>
+// really_inline SuperVector<16> SuperVector<16>::vshr_8_imm() const
+// {
+//     return {_mm_srli_epi8(u.v128[0], N)};
+// }
+
+template <>
+template<uint8_t N>
+really_inline SuperVector<16> SuperVector<16>::vshr_16_imm() const
+{
+    return {_mm_srli_epi16(u.v128[0], N)};
+}
+
+template <>
+template<uint8_t N>
+really_inline SuperVector<16> SuperVector<16>::vshr_32_imm() const
+{
+    return {_mm_srli_epi32(u.v128[0], N)};
+}
+  
+template <>
+template<uint8_t N>
+really_inline SuperVector<16> SuperVector<16>::vshr_64_imm() const
+{
+    return {_mm_srli_epi64(u.v128[0], N)};
+}
+
+template <>
+template<uint8_t N>
+really_inline SuperVector<16> SuperVector<16>::vshr_128_imm() const
+{
+    return {_mm_srli_si128(u.v128[0], N)};
+}
+
+template <>
+template<uint8_t N>
+really_inline SuperVector<16> SuperVector<16>::vshr_imm() const
+{
+    return vshr_128_imm<N>();
+}
+
+#if !defined(HS_OPTIMIZE)
+template SuperVector<16> SuperVector<16>::vshl_16_imm<1>() const;
+template SuperVector<16> SuperVector<16>::vshl_64_imm<1>() const;
+template SuperVector<16> SuperVector<16>::vshl_64_imm<4>() const;
+template SuperVector<16> SuperVector<16>::vshl_128_imm<1>() const;
+template SuperVector<16> SuperVector<16>::vshl_128_imm<4>() const;
+template SuperVector<16> SuperVector<16>::vshr_16_imm<1>() const;
+template SuperVector<16> SuperVector<16>::vshr_64_imm<1>() const;
+template SuperVector<16> SuperVector<16>::vshr_64_imm<4>() const;
+template SuperVector<16> SuperVector<16>::vshr_128_imm<1>() const;
+template SuperVector<16> SuperVector<16>::vshr_128_imm<4>() const;
+#endif
+
+// template <>
+// really_inline SuperVector<16> SuperVector<16>::vshl_8  (uint8_t const N) const
+// {
+//     Unroller<0, 15>::iterator([&,v=this](int i) { if (N == i) return {_mm_slli_epi8(v->u.v128[0], i)}; });
+//     if (N == 16) return Zeroes();
+// }
+
+template <>
+really_inline SuperVector<16> SuperVector<16>::vshl_16 (uint8_t const N) const
+{
+#if defined(HAVE__BUILTIN_CONSTANT_P)
+    if (__builtin_constant_p(N)) {
+        return {_mm_slli_epi16(u.v128[0], N)};
+    }
+#endif
+    if (N == 0) return *this;
+    if (N == 16) return Zeroes();
+    SuperVector result;
+    Unroller<1, 16>::iterator([&,v=this](auto const i) { constexpr uint8_t n = i.value; if (N == n) result = {_mm_slli_epi16(v->u.v128[0], n)}; });
+    return result;
+}
+
+template <>
+really_inline SuperVector<16> SuperVector<16>::vshl_32 (uint8_t const N) const
+{
+    if (N == 0) return *this;
+    if (N == 16) return Zeroes();
+    SuperVector result;
+    Unroller<1, 16>::iterator([&,v=this](auto const i) { constexpr uint8_t n = i.value; if (N == n) result = {_mm_slli_epi32(v->u.v128[0], n)}; });
+    return result;
+}
+
+template <>
+really_inline SuperVector<16> SuperVector<16>::vshl_64 (uint8_t const N) const
+{
+    if (N == 0) return *this;
+    if (N == 16) return Zeroes();
+    SuperVector result;
+    Unroller<1, 16>::iterator([&,v=this](auto const i) { constexpr uint8_t n = i.value; if (N == n) result = {_mm_slli_epi64(v->u.v128[0], n)}; });
+    return result;
+}
+
+template <>
+really_inline SuperVector<16> SuperVector<16>::vshl_128(uint8_t const N) const
+{
+    if (N == 0) return *this;
+    if (N == 16) return Zeroes();
+    SuperVector result;
+    Unroller<1, 16>::iterator([&,v=this](auto const i) { constexpr uint8_t n = i.value; if (N == n) result = {_mm_slli_si128(v->u.v128[0], n)}; });
+    return result;
+}
+
+template <>
+really_inline SuperVector<16> SuperVector<16>::vshl(uint8_t const N) const
+{
+    return vshl_128(N);
+}
+
+// template <>
+// really_inline SuperVector<16> SuperVector<16>::vshr_8  (uint8_t const N) const
+// {
+//     SuperVector<16> result;
+//     Unroller<0, 15>::iterator([&,v=this](uint8_t const i) { if (N == i) result = {_mm_srli_epi8(v->u.v128[0], i)}; });
+//     if (N == 16) result = Zeroes();
+//     return result;
+// }
+
+template <>
+really_inline SuperVector<16> SuperVector<16>::vshr_16 (uint8_t const N) const
+{
+    if (N == 0) return *this;
+    if (N == 16) return Zeroes();
+    SuperVector result;
+    Unroller<1, 16>::iterator([&,v=this](auto const i) { constexpr uint8_t n = i.value; if (N == n) result = {_mm_srli_epi16(v->u.v128[0], n)}; });
+    return result;
+}
+
+template <>
+really_inline SuperVector<16> SuperVector<16>::vshr_32 (uint8_t const N) const
+{
+    if (N == 0) return *this;
+    if (N == 16) return Zeroes();
+    SuperVector result;
+    Unroller<1, 16>::iterator([&,v=this](auto const i) { constexpr uint8_t n = i.value; if (N == n) result = {_mm_srli_epi32(v->u.v128[0], n)}; });
+    return result;
+}
+
+template <>
+really_inline SuperVector<16> SuperVector<16>::vshr_64 (uint8_t const N) const
+{
+    if (N == 0) return *this;
+    if (N == 16) return Zeroes();
+    SuperVector result;
+    Unroller<1, 16>::iterator([&,v=this](auto const i) { constexpr uint8_t n = i.value; if (N == n) result = {_mm_srli_epi64(v->u.v128[0], n)}; });
+    return result;
+}
+
+template <>
+really_inline SuperVector<16> SuperVector<16>::vshr_128(uint8_t const N) const
+{
+    if (N == 0) return *this;
+    if (N == 16) return Zeroes();
+    SuperVector result;
+    Unroller<1, 16>::iterator([&,v=this](auto const i) { constexpr uint8_t n = i.value; if (N == n) result = {_mm_srli_si128(v->u.v128[0], n)}; });
+    return result;
+}
+
+template <>
+really_inline SuperVector<16> SuperVector<16>::vshr(uint8_t const N) const
+{
+    return vshr_128(N);
+}
+
+template <>
+really_inline SuperVector<16> SuperVector<16>::operator>>(uint8_t const N) const
+{
+    return vshr_128(N);
+}
+
+template <>
+really_inline SuperVector<16> SuperVector<16>::operator<<(uint8_t const N) const
+{
+    return vshl_128(N);
+}
+
+template<>
+really_inline SuperVector<16> SuperVector<16>::Ones_vshr(uint8_t const N)
+{
+    if (N == 0) return Ones();
+    else return Ones().vshr_128(N);
+}
+
+template<>
+really_inline SuperVector<16> SuperVector<16>::Ones_vshl(uint8_t const N)
+{
+    if (N == 0) return Ones();
+    else return Ones().vshr_128(N);
+}
+
+template <>
+really_inline SuperVector<16> SuperVector<16>::loadu(void const *ptr)
+{
+    return _mm_loadu_si128((const m128 *)ptr);
+}
+
+template <>
+really_inline SuperVector<16> SuperVector<16>::load(void const *ptr)
+{
+    assert(ISALIGNED_N(ptr, alignof(SuperVector::size)));
+    ptr = vectorscan_assume_aligned(ptr, SuperVector::size);
+    return _mm_load_si128((const m128 *)ptr);
+}
+
+template <>
+really_inline SuperVector<16> SuperVector<16>::loadu_maskz(void const *ptr, uint8_t const len)
+{
+    SuperVector mask = Ones_vshr(16 -len);
+    SuperVector v = _mm_loadu_si128((const m128 *)ptr);
+    return mask & v;
+}
+
+template<>
+really_inline SuperVector<16> SuperVector<16>::alignr(SuperVector<16> &other, int8_t offset)
+{
+#if defined(HAVE__BUILTIN_CONSTANT_P)
+    if (__builtin_constant_p(offset)) {
+        if (offset == 16) {
+            return *this;
+        } else {
+            return {_mm_alignr_epi8(u.v128[0], other.u.v128[0], offset)};
+        }
+    }
+#endif
+    switch(offset) {
+    case 0: return other; break;
+    case 1: return {_mm_alignr_epi8(u.v128[0], other.u.v128[0], 1)}; break;
+    case 2: return {_mm_alignr_epi8(u.v128[0], other.u.v128[0], 2)}; break;
+    case 3: return {_mm_alignr_epi8(u.v128[0], other.u.v128[0], 3)}; break;
+    case 4: return {_mm_alignr_epi8(u.v128[0], other.u.v128[0], 4)}; break;
+    case 5: return {_mm_alignr_epi8(u.v128[0], other.u.v128[0], 5)}; break;
+    case 6: return {_mm_alignr_epi8(u.v128[0], other.u.v128[0], 6)}; break;
+    case 7: return {_mm_alignr_epi8(u.v128[0], other.u.v128[0], 7)}; break;
+    case 8: return {_mm_alignr_epi8(u.v128[0], other.u.v128[0], 8)}; break;
+    case 9: return {_mm_alignr_epi8(u.v128[0], other.u.v128[0], 9)}; break;
+    case 10: return {_mm_alignr_epi8(u.v128[0], other.u.v128[0], 10)}; break;
+    case 11: return {_mm_alignr_epi8(u.v128[0], other.u.v128[0], 11)}; break;
+    case 12: return {_mm_alignr_epi8(u.v128[0], other.u.v128[0], 12)}; break;
+    case 13: return {_mm_alignr_epi8(u.v128[0], other.u.v128[0], 13)}; break;
+    case 14: return {_mm_alignr_epi8(u.v128[0], other.u.v128[0], 14)}; break;
+    case 15: return {_mm_alignr_epi8(u.v128[0], other.u.v128[0], 15)}; break;
+    default: break;
+    }
+    return *this;
+}
+
+template<>
+template<>
+really_inline SuperVector<16> SuperVector<16>::pshufb<true>(SuperVector<16> b)
+{
+    return {_mm_shuffle_epi8(u.v128[0], b.u.v128[0])};
+}
+
+template<>
+really_inline SuperVector<16> SuperVector<16>::pshufb_maskz(SuperVector<16> b, uint8_t const len)
+{
+    SuperVector mask = Ones_vshr(16 -len);
+    return mask & pshufb(b);
+}
+
+#endif // SIMD_IMPL_HPP
diff --git a/src/util/supervector/supervector.hpp b/src/util/supervector/supervector.hpp
index c0200575..730a6fd2 100644
--- a/src/util/supervector/supervector.hpp
+++ b/src/util/supervector/supervector.hpp
@@ -388,6 +388,8 @@ struct Unroller<End, End>
 #include "util/supervector/arch/arm/impl.cpp"
 #elif defined(ARCH_PPC64EL)
 #include "util/supervector/arch/ppc64el/impl.cpp"
+#elif defined(SIMDE_BACKEND)
+#include "util/supervector/arch/simde/impl.cpp"
 #endif
 #endif