mirror of https://go.googlesource.com/go
25 lines
533 B
Go
25 lines
533 B
Go
// Copyright 2015 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package runtime
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import (
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"internal/cpu"
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)
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var useAVXmemmove bool
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func init() {
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// Let's remove stepping and reserved fields
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processor := processorVersionInfo & 0x0FFF3FF0
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isIntelBridgeFamily := isIntel &&
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processor == 0x206A0 ||
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processor == 0x206D0 ||
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processor == 0x306A0 ||
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processor == 0x306E0
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useAVXmemmove = cpu.X86.HasAVX && !isIntelBridgeFamily
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}
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