From 26a029d407be480d791972afb5975cf62c9360a6 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Fri, 19 Apr 2024 02:47:55 +0200 Subject: Adding upstream version 124.0.1. Signed-off-by: Daniel Baumann --- gfx/2d/SSEHelpers.h | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) create mode 100644 gfx/2d/SSEHelpers.h (limited to 'gfx/2d/SSEHelpers.h') diff --git a/gfx/2d/SSEHelpers.h b/gfx/2d/SSEHelpers.h new file mode 100644 index 0000000000..1b32024009 --- /dev/null +++ b/gfx/2d/SSEHelpers.h @@ -0,0 +1,18 @@ +/* -*- 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 +#include + +/* 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)); +} -- cgit v1.2.3