228 lines
3.8 KiB
ArmAsm
228 lines
3.8 KiB
ArmAsm
// Copyright 2016 Tom Thorogood. All rights reserved.
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// Use of this source code is governed by a
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// Modified BSD License license that can be found in
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// the LICENSE file.
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//
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// Copyright 2005-2016, Wojciech Muła. All rights reserved.
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// Use of this source code is governed by a
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// Simplified BSD License license that can be found in
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// the LICENSE file.
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//
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// This file is auto-generated - do not modify
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// +build amd64,!gccgo,!appengine
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#include "textflag.h"
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DATA encodeMask<>+0x00(SB)/8, $0x0f0f0f0f0f0f0f0f
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DATA encodeMask<>+0x08(SB)/8, $0x0f0f0f0f0f0f0f0f
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GLOBL encodeMask<>(SB),RODATA,$16
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TEXT ·encodeAVX(SB),NOSPLIT,$0
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MOVQ dst+0(FP), DI
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MOVQ src+8(FP), SI
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MOVQ len+16(FP), BX
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MOVQ alpha+24(FP), DX
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MOVOU (DX), X15
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CMPQ BX, $16
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JB tail
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bigloop:
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MOVOU -16(SI)(BX*1), X0
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VPAND encodeMask<>(SB), X0, X1
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PSRLW $4, X0
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PAND encodeMask<>(SB), X0
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VPUNPCKHBW X1, X0, X3
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PUNPCKLBW X1, X0
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VPSHUFB X0, X15, X1
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VPSHUFB X3, X15, X2
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MOVOU X2, -16(DI)(BX*2)
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MOVOU X1, -32(DI)(BX*2)
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SUBQ $16, BX
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JZ ret
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CMPQ BX, $16
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JAE bigloop
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tail:
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CMPQ BX, $2
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JB tail_in_1
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JE tail_in_2
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CMPQ BX, $4
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JB tail_in_3
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JE tail_in_4
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CMPQ BX, $6
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JB tail_in_5
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JE tail_in_6
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CMPQ BX, $8
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JB tail_in_7
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tail_in_8:
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MOVQ (SI), X0
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JMP tail_conv
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tail_in_7:
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PINSRB $6, 6(SI), X0
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tail_in_6:
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PINSRB $5, 5(SI), X0
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tail_in_5:
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PINSRB $4, 4(SI), X0
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tail_in_4:
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PINSRD $0, (SI), X0
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JMP tail_conv
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tail_in_3:
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PINSRB $2, 2(SI), X0
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tail_in_2:
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PINSRB $1, 1(SI), X0
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tail_in_1:
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PINSRB $0, (SI), X0
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tail_conv:
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VPAND encodeMask<>(SB), X0, X1
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PSRLW $4, X0
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PAND encodeMask<>(SB), X0
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PUNPCKLBW X1, X0
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VPSHUFB X0, X15, X1
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CMPQ BX, $2
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JB tail_out_1
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JE tail_out_2
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CMPQ BX, $4
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JB tail_out_3
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JE tail_out_4
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CMPQ BX, $6
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JB tail_out_5
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JE tail_out_6
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CMPQ BX, $8
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JB tail_out_7
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tail_out_8:
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MOVOU X1, (DI)
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SUBQ $8, BX
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JZ ret
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ADDQ $8, SI
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ADDQ $16, DI
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JMP tail
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tail_out_7:
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PEXTRB $13, X1, 13(DI)
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PEXTRB $12, X1, 12(DI)
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tail_out_6:
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PEXTRB $11, X1, 11(DI)
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PEXTRB $10, X1, 10(DI)
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tail_out_5:
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PEXTRB $9, X1, 9(DI)
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PEXTRB $8, X1, 8(DI)
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tail_out_4:
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MOVQ X1, (DI)
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RET
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tail_out_3:
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PEXTRB $5, X1, 5(DI)
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PEXTRB $4, X1, 4(DI)
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tail_out_2:
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PEXTRB $3, X1, 3(DI)
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PEXTRB $2, X1, 2(DI)
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tail_out_1:
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PEXTRB $1, X1, 1(DI)
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PEXTRB $0, X1, (DI)
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ret:
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RET
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TEXT ·encodeSSE(SB),NOSPLIT,$0
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MOVQ dst+0(FP), DI
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MOVQ src+8(FP), SI
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MOVQ len+16(FP), BX
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MOVQ alpha+24(FP), DX
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MOVOU (DX), X15
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CMPQ BX, $16
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JB tail
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bigloop:
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MOVOU -16(SI)(BX*1), X0
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MOVOU X0, X1
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PAND encodeMask<>(SB), X1
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PSRLW $4, X0
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PAND encodeMask<>(SB), X0
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MOVOU X0, X3
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PUNPCKHBW X1, X3
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PUNPCKLBW X1, X0
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MOVOU X15, X1
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PSHUFB X0, X1
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MOVOU X15, X2
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PSHUFB X3, X2
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MOVOU X2, -16(DI)(BX*2)
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MOVOU X1, -32(DI)(BX*2)
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SUBQ $16, BX
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JZ ret
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CMPQ BX, $16
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JAE bigloop
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tail:
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CMPQ BX, $2
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JB tail_in_1
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JE tail_in_2
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CMPQ BX, $4
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JB tail_in_3
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JE tail_in_4
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CMPQ BX, $6
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JB tail_in_5
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JE tail_in_6
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CMPQ BX, $8
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JB tail_in_7
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tail_in_8:
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MOVQ (SI), X0
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JMP tail_conv
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tail_in_7:
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PINSRB $6, 6(SI), X0
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tail_in_6:
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PINSRB $5, 5(SI), X0
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tail_in_5:
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PINSRB $4, 4(SI), X0
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tail_in_4:
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PINSRD $0, (SI), X0
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JMP tail_conv
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tail_in_3:
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PINSRB $2, 2(SI), X0
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tail_in_2:
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PINSRB $1, 1(SI), X0
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tail_in_1:
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PINSRB $0, (SI), X0
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tail_conv:
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MOVOU X0, X1
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PAND encodeMask<>(SB), X1
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PSRLW $4, X0
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PAND encodeMask<>(SB), X0
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PUNPCKLBW X1, X0
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MOVOU X15, X1
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PSHUFB X0, X1
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CMPQ BX, $2
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JB tail_out_1
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JE tail_out_2
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CMPQ BX, $4
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JB tail_out_3
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JE tail_out_4
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CMPQ BX, $6
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JB tail_out_5
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JE tail_out_6
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CMPQ BX, $8
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JB tail_out_7
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tail_out_8:
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MOVOU X1, (DI)
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SUBQ $8, BX
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JZ ret
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ADDQ $8, SI
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ADDQ $16, DI
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JMP tail
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tail_out_7:
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PEXTRB $13, X1, 13(DI)
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PEXTRB $12, X1, 12(DI)
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tail_out_6:
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PEXTRB $11, X1, 11(DI)
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PEXTRB $10, X1, 10(DI)
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tail_out_5:
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PEXTRB $9, X1, 9(DI)
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PEXTRB $8, X1, 8(DI)
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tail_out_4:
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MOVQ X1, (DI)
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RET
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tail_out_3:
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PEXTRB $5, X1, 5(DI)
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PEXTRB $4, X1, 4(DI)
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tail_out_2:
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PEXTRB $3, X1, 3(DI)
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PEXTRB $2, X1, 2(DI)
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tail_out_1:
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PEXTRB $1, X1, 1(DI)
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PEXTRB $0, X1, (DI)
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ret:
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RET
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