blob: 9132cce9627feedce608d3a3833b388c7c7ead55 [file] [log] [blame]
// Copyright 2009 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.
TEXT bytes·IndexByte(SB),7,$0
MOVQ p+0(FP), SI
MOVL len+8(FP), CX
MOVB b+16(FP), AL
MOVQ SI, DI
REPN; SCASB
JZ 3(PC)
MOVL $-1, ret+24(FP)
RET
SUBQ SI, DI
SUBL $1, DI
MOVL DI, ret+24(FP)
RET