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indexbyte_mips64x.s
// 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. //go:build mips64 || mips64le #include "go_asm.h" #include "textflag.h" TEXT ·IndexByte(SB),NOSPLIT,$0-40 MOVV b_base+0(FP), R1 MOVV b_len+8(FP), R2 MOVBU c+24(FP), R3 // byte to find MOVV R1, R4 // store base for later ADDV R1, R2 // end ADDV $-1, R1 loop: ADDV $1, R1 BEQ R1, R2, notfound MOVBU (R1), R5 BNE R3, R5, loop SUBV R4, R1 // remove base MOVV R1, ret+32(FP) RET notfound: MOVV $-1, R1 MOVV R1, ret+32(FP) RET TEXT ·IndexByteString(SB),NOSPLIT,$0-32 MOVV s_base+0(FP), R1 MOVV s_len+8(FP), R2 MOVBU c+16(FP), R3 // byte to find MOVV R1, R4 // store base for later ADDV R1, R2 // end ADDV $-1, R1 loop: ADDV $1, R1 BEQ R1, R2, notfound MOVBU (R1), R5 BNE R3, R5, loop SUBV R4, R1 // remove base MOVV R1, ret+24(FP) RET notfound: MOVV $-1, R1 MOVV R1, ret+24(FP) RET
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