mirror of https://github.com/golang/go.git
64 lines
1.1 KiB
ArmAsm
64 lines
1.1 KiB
ArmAsm
// Copyright 2018 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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//go:build mips || mipsle
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// +build mips mipsle
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#include "go_asm.h"
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#include "textflag.h"
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#define REGCTXT R22
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// memequal(a, b unsafe.Pointer, size uintptr) bool
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TEXT runtime·memequal(SB),NOSPLIT,$0-13
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MOVW a+0(FP), R1
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MOVW b+4(FP), R2
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BEQ R1, R2, eq
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MOVW size+8(FP), R3
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ADDU R1, R3, R4
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loop:
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BNE R1, R4, test
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MOVW $1, R1
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MOVB R1, ret+12(FP)
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RET
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test:
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MOVBU (R1), R6
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ADDU $1, R1
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MOVBU (R2), R7
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ADDU $1, R2
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BEQ R6, R7, loop
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MOVB R0, ret+12(FP)
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RET
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eq:
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MOVW $1, R1
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MOVB R1, ret+12(FP)
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RET
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// memequal_varlen(a, b unsafe.Pointer) bool
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TEXT runtime·memequal_varlen(SB),NOSPLIT,$0-9
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MOVW a+0(FP), R1
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MOVW b+4(FP), R2
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BEQ R1, R2, eq
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MOVW 4(REGCTXT), R3 // compiler stores size at offset 4 in the closure
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ADDU R1, R3, R4
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loop:
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BNE R1, R4, test
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MOVW $1, R1
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MOVB R1, ret+8(FP)
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RET
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test:
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MOVBU (R1), R6
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ADDU $1, R1
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MOVBU (R2), R7
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ADDU $1, R2
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BEQ R6, R7, loop
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MOVB R0, ret+8(FP)
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RET
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eq:
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MOVW $1, R1
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MOVB R1, ret+8(FP)
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RET
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