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-rw-r--r--src/internal/bytealg/bytealg.go22
1 files changed, 22 insertions, 0 deletions
diff --git a/src/internal/bytealg/bytealg.go b/src/internal/bytealg/bytealg.go
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index 0000000000..1ab7c30f4e
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+++ b/src/internal/bytealg/bytealg.go
@@ -0,0 +1,22 @@
+// Copyright 2018 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 bytealg
+
+import (
+ "internal/cpu"
+ "unsafe"
+)
+
+// Offsets into internal/cpu records for use in assembly.
+const (
+ x86_HasSSE2 = unsafe.Offsetof(cpu.X86.HasSSE2)
+ x86_HasSSE42 = unsafe.Offsetof(cpu.X86.HasSSE42)
+ x86_HasAVX2 = unsafe.Offsetof(cpu.X86.HasAVX2)
+ x86_HasPOPCNT = unsafe.Offsetof(cpu.X86.HasPOPCNT)
+ s390x_HasVX = unsafe.Offsetof(cpu.S390X.HasVX)
+)
+
+// MaxLen is the maximum length of the string to be searched for (argument b) in Index.
+var MaxLen int