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/*
* Copyright 2024 CloudWeGo Authors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package base64x
import (
`fmt`
`os`
`github.com/klauspost/cpuid/v2`
)
func hasAVX2() bool {
switch v := os.Getenv("B64X_MODE"); v {
case "" : fallthrough
case "auto" : return cpuid.CPU.Has(cpuid.AVX2)
case "noavx2" : return false
default : panic(fmt.Sprintf("invalid mode: '%s', should be one of 'auto', 'noavx2'", v))
}
}
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