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112 lines
4.1 KiB
112 lines
4.1 KiB
/* Copyright (c) 2014, Cisco Systems, INC |
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Written by XiangMingZhu WeiZhou MinPeng YanWang |
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Redistribution and use in source and binary forms, with or without |
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modification, are permitted provided that the following conditions |
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are met: |
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- Redistributions of source code must retain the above copyright |
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notice, this list of conditions and the following disclaimer. |
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- Redistributions in binary form must reproduce the above copyright |
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notice, this list of conditions and the following disclaimer in the |
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documentation and/or other materials provided with the distribution. |
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER |
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OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
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EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
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PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
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PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF |
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LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
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NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
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SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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*/ |
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#if !defined(X86CPU_H) |
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# define X86CPU_H |
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# if defined(OPUS_X86_MAY_HAVE_SSE) |
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# define MAY_HAVE_SSE(name) name ## _sse |
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# else |
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# define MAY_HAVE_SSE(name) name ## _c |
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# endif |
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# if defined(OPUS_X86_MAY_HAVE_SSE2) |
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# define MAY_HAVE_SSE2(name) name ## _sse2 |
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# else |
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# define MAY_HAVE_SSE2(name) name ## _c |
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# endif |
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# if defined(OPUS_X86_MAY_HAVE_SSE4_1) |
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# define MAY_HAVE_SSE4_1(name) name ## _sse4_1 |
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# else |
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# define MAY_HAVE_SSE4_1(name) name ## _c |
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# endif |
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# if defined(OPUS_X86_MAY_HAVE_AVX2) |
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# define MAY_HAVE_AVX2(name) name ## _avx2 |
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# else |
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# define MAY_HAVE_AVX2(name) name ## _c |
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# endif |
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# if defined(OPUS_HAVE_RTCD) && \ |
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((defined(OPUS_X86_MAY_HAVE_SSE) && !defined(OPUS_X86_PRESUME_SSE)) || \ |
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(defined(OPUS_X86_MAY_HAVE_SSE2) && !defined(OPUS_X86_PRESUME_SSE2)) || \ |
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(defined(OPUS_X86_MAY_HAVE_SSE4_1) && !defined(OPUS_X86_PRESUME_SSE4_1)) || \ |
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(defined(OPUS_X86_MAY_HAVE_AVX2) && !defined(OPUS_X86_PRESUME_AVX2))) |
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int opus_select_arch(void); |
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# endif |
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# if defined(OPUS_X86_MAY_HAVE_SSE2) |
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# include "opus_defines.h" |
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/*MOVD should not impose any alignment restrictions, but the C standard does, |
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and UBSan will report errors if we actually make unaligned accesses. |
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Use this to work around those restrictions (which should hopefully all get |
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optimized to a single MOVD instruction). |
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GCC implemented _mm_loadu_si32() since GCC 11; HOWEVER, there is a bug! |
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99754 |
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LLVM implemented _mm_loadu_si32() since Clang 8.0, however the |
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__clang_major__ version number macro is unreliable, as vendors |
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(specifically, Apple) will use different numbering schemes than upstream. |
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Clang's advice is "use feature detection", but they do not provide feature |
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detection support for specific SIMD functions. |
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We follow the approach from the SIMDe project and instead detect unrelated |
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features that should be available in the version we want (see |
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<https://github.com/simd-everywhere/simde/blob/master/simde/simde-detect-clang.h>).*/ |
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# if defined(__clang__) |
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# if __has_warning("-Wextra-semi-stmt") || \ |
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__has_builtin(__builtin_rotateleft32) |
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# define OPUS_CLANG_8 (1) |
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# endif |
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# endif |
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# if !defined(_MSC_VER) && !OPUS_GNUC_PREREQ(11,3) && !defined(OPUS_CLANG_8) |
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# include <string.h> |
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# include <emmintrin.h> |
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# ifdef _mm_loadu_si32 |
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# undef _mm_loadu_si32 |
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# endif |
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# define _mm_loadu_si32 WORKAROUND_mm_loadu_si32 |
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static inline __m128i WORKAROUND_mm_loadu_si32(void const* mem_addr) { |
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int val; |
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memcpy(&val, mem_addr, sizeof(val)); |
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return _mm_cvtsi32_si128(val); |
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} |
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# elif defined(_MSC_VER) |
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/* MSVC needs this for _mm_loadu_si32 */ |
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# include <immintrin.h> |
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# endif |
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# define OP_CVTEPI8_EPI32_M32(x) \ |
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(_mm_cvtepi8_epi32(_mm_loadu_si32(x))) |
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# define OP_CVTEPI16_EPI32_M64(x) \ |
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(_mm_cvtepi16_epi32(_mm_loadl_epi64((__m128i *)(void*)(x)))) |
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# endif |
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#endif
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