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39 lines
1.2 KiB
39 lines
1.2 KiB
/*
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* Minio Cloud Storage, (C) 2015 Minio, Inc.
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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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package cpu
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// cpuid, cpuidex
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func cpuid(op uint32) (eax, ebx, ecx, edx uint32)
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func cpuidex(op, op2 uint32) (eax, ebx, ecx, edx uint32)
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// HasSSE41 - CPUID instruction verification wrapper for SSE41 extensions
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func HasSSE41() bool {
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_, _, c, _ := cpuid(1)
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return ((c & (1 << 19)) != 0)
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}
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// HasAVX - CPUID instruction verification wrapper for AVX extensions
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func HasAVX() bool {
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_, _, c, _ := cpuid(1)
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return ((c & (1 << 28)) != 0)
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}
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// HasAVX2 - CPUID instruction verification wrapper for AVX2 extensions
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func HasAVX2() bool {
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_, b, _, _ := cpuidex(7, 0)
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return ((b & (1 << 5)) != 0)
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}
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