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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include <xmmintrin.h>
#include <emmintrin.h>
/* Before Nehalem _mm_loadu_si128 could be very slow, this trick is a little
* faster. Once enough people are on architectures where _mm_loadu_si128 is
* fast we can migrate to it.
*/
MOZ_ALWAYS_INLINE __m128i loadUnaligned128(const __m128i* aSource) {
// Yes! We use uninitialized memory here, we'll overwrite it though!
__m128 res = _mm_loadl_pi(_mm_set1_ps(0), (const __m64*)aSource);
return _mm_castps_si128(_mm_loadh_pi(res, ((const __m64*)(aSource)) + 1));
}
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