78 lines
1.1 KiB
ArmAsm
78 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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#include "go_asm.h"
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#include "textflag.h"
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// memequal(p, q unsafe.Pointer, size uintptr) bool
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TEXT runtime·memequal(SB), NOSPLIT, $0-25
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Get SP
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I64Load a+0(FP)
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I64Load b+8(FP)
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I64Load size+16(FP)
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Call memeqbody<>(SB)
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I64Store8 ret+24(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, $0-17
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Get SP
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I64Load a+0(FP)
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I64Load b+8(FP)
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I64Load 8(CTXT) // compiler stores size at offset 8 in the closure
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Call memeqbody<>(SB)
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I64Store8 ret+16(FP)
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RET
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// params: a, b, len
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// ret: 0/1
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TEXT memeqbody<>(SB), NOSPLIT, $0-0
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Get R0
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Get R1
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I64Eq
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If
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I64Const $1
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Return
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End
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loop:
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Loop
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Get R2
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I64Eqz
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If
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I64Const $1
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Return
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End
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Get R0
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I32WrapI64
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I64Load8U $0
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Get R1
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I32WrapI64
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I64Load8U $0
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I64Ne
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If
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I64Const $0
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Return
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End
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Get R0
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I64Const $1
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I64Add
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Set R0
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Get R1
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I64Const $1
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I64Add
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Set R1
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Get R2
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I64Const $1
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I64Sub
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Set R2
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Br loop
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End
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UNDEF
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