| // Copyright 2015 The Go Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style |
| // license that can be found in the LICENSE file. |
| |
| package runtime |
| |
| var useAVXmemmove bool |
| |
| func init() { |
| // Let's remove stepping and reserved fields |
| processorVersionInfo := cpuid_eax & 0x0FFF3FF0 |
| |
| isIntelBridgeFamily := isIntel && |
| (processorVersionInfo == 0x206A0 || |
| processorVersionInfo == 0x206D0 || |
| processorVersionInfo == 0x306A0 || |
| processorVersionInfo == 0x306E0) |
| |
| useAVXmemmove = support_avx && !isIntelBridgeFamily |
| } |
