Abseil Common Libraries (C++) (grcp 依赖)
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50 lines
1.3 KiB
50 lines
1.3 KiB
6 years ago
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// Copyright 2018 The Abseil Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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// Shared config probing for SSE instructions used in Swiss tables.
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#ifndef ABSL_CONTAINER_INTERNAL_HAVE_SSE_H_
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#define ABSL_CONTAINER_INTERNAL_HAVE_SSE_H_
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#ifndef SWISSTABLE_HAVE_SSE2
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#if defined(__SSE2__) || \
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(defined(_MSC_VER) && \
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(defined(_M_X64) || (defined(_M_IX86) && _M_IX86_FP >= 2)))
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#define SWISSTABLE_HAVE_SSE2 1
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#else
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#define SWISSTABLE_HAVE_SSE2 0
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#endif
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#endif
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#ifndef SWISSTABLE_HAVE_SSSE3
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#ifdef __SSSE3__
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#define SWISSTABLE_HAVE_SSSE3 1
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#else
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#define SWISSTABLE_HAVE_SSSE3 0
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#endif
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#endif
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#if SWISSTABLE_HAVE_SSSE3 && !SWISSTABLE_HAVE_SSE2
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#error "Bad configuration!"
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#endif
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#if SWISSTABLE_HAVE_SSE2
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#include <emmintrin.h>
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#endif
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#if SWISSTABLE_HAVE_SSSE3
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#include <tmmintrin.h>
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#endif
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#endif // ABSL_CONTAINER_INTERNAL_HAVE_SSE_H_
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