// license that can be found in the LICENSE file.

package runtime

import (
	"internal/cpu"
)

var useAVXmemmove bool

func init() {
	// Let's remove stepping and reserved fields
	processor := processorVersionInfo & 0x0FFF3FF0

	isIntelBridgeFamily := isIntel &&
		processor == 0x206A0 ||
		processor == 0x206D0 ||
		processor == 0x306A0 ||
		processor == 0x306E0

	useAVXmemmove = cpu.X86.HasAVX && !isIntelBridgeFamily

	// Information about what cpu features are available.
	// Packages outside the runtime should not use these
	// as they are not an external api.
	// Set on startup in asm_{386,amd64}.s
	processorVersionInfo uint32
	isIntel              bool
)

// set by cmd/link on arm systems
// accessed using linkname by internal/runtime/atomic.
//
// goarm should be an internal detail,