63 lines
1.5 KiB
C++
63 lines
1.5 KiB
C++
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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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*/
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// Determine the compiler support for SIMD compiler intrinsics.
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// This changes from one compiled unit to the other, depending if
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// the support has been detected and if the compiled unit contains
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// code using intrinsics or not. So we have to (re)set them again
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// every time this file has been included.
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#undef LO_SSE2_AVAILABLE
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#undef LO_SSSE3_AVAILABLE
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#undef LO_AVX_AVAILABLE
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#undef LO_AVX2_AVAILABLE
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#if defined(_MSC_VER) // VISUAL STUDIO COMPILER
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// SSE2 is required for X64
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#if (defined(_M_X64) || defined(_M_IX86_FP) && _M_IX86_FP >= 2)
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#define LO_SSE2_AVAILABLE
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#endif
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// compiled with /arch:AVX
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#if defined(__AVX__)
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#ifndef LO_SSE2_AVAILABLE
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#define LO_SSE2_AVAILABLE
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#endif
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#define LO_SSSE3_AVAILABLE
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#define LO_AVX_AVAILABLE
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#endif
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// compiled with /arch:AVX2
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#if defined(__AVX2__)
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#define LO_AVX2_AVAILABLE
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#endif
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#else // Clang and GCC
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#if defined(__SSE2__) || defined(__x86_64__) // SSE2 is required for X64
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#define LO_SSE2_AVAILABLE
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#endif
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#if defined(__SSSE3__)
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#define LO_SSSE3_AVAILABLE
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#endif
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#if defined(__AVX__)
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#define LO_AVX_AVAILABLE
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#endif
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#if defined(__AVX2__)
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#define LO_AVX2_AVAILABLE
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#endif
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#endif
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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