// 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. #include "go_asm.h" #include "textflag.h" TEXT ·IndexByte(SB), NOSPLIT, $0-40 I64Load b_base+0(FP) I32WrapI64 I32Load8U c+24(FP) I64Load b_len+8(FP) I32WrapI64 Call memchr<>(SB) I64ExtendSI32 Set R0 Get SP I64Const $-1 Get R0 I64Load b_base+0(FP) I64Sub Get R0 I64Eqz $0 Select I64Store ret+32(FP) RET TEXT ·IndexByteString(SB), NOSPLIT, $0-32 Get SP I64Load s_base+0(FP) I32WrapI64 I32Load8U c+16(FP) I64Load s_len+8(FP) I32WrapI64 Call memchr<>(SB) I64ExtendSI32 Set R0 I64Const $-1 Get R0 I64Load s_base+0(FP) I64Sub Get R0 I64Eqz $0 Select I64Store ret+24(FP) RET // compiled with emscripten // params: s, c, len // ret: index TEXT memchr<>(SB), NOSPLIT, $0 Get R1 I32Const $255 I32And Set R4 Block Block Get R2 I32Const $0 I32Ne Tee R3 Get R0 I32Const $3 I32And I32Const $0 I32Ne I32And If Get R1 I32Const $255 I32And Set R5 Loop Get R0 I32Load8U $0 Get R5 I32Eq BrIf $2 Get R2 I32Const $-1 I32Add Tee R2 I32Const $0 I32Ne Tee R3 Get R0 I32Const $1 I32Add Tee R0 I32Const $3 I32And I32Const $0 I32Ne I32And BrIf $0 End End Get R3 BrIf $0 I32Const $0 Set R1 Br $1 End Get R0 I32Load8U $0 Get R1 I32Const $255 I32And Tee R3 I32Eq If Get R2 Set R1 Else Get R4 I32Const $16843009 I32Mul Set R4 Block Block Get R2 I32Const $3 I32GtU If Get R2 Set R1 Loop Get R0 I32Load $0 Get R4 I32Xor Tee R2 I32Const $-2139062144 I32And I32Const $-2139062144 I32Xor Get R2 I32Const $-16843009 I32Add I32And I32Eqz If Get R0 I32Const $4 I32Add Set R0 Get R1 I32Const $-4 I32Add Tee R1 I32Const $3 I32GtU BrIf $1 Br $3 End End Else Get R2 Set R1 Br $1 End Br $1 End Get R1 I32Eqz If I32Const $0 Set R1 Br $3 End End Loop Get R0 I32Load8U $0 Get R3 I32Eq BrIf $2 Get R0 I32Const $1 I32Add Set R0 Get R1 I32Const $-1 I32Add Tee R1 BrIf $0 I32Const $0 Set R1 End End End Get R0 I32Const $0 Get R1 Select Return