mirror of
https://github.com/octoleo/syncthing.git
synced 2024-11-19 03:25:16 +00:00
402 lines
8.8 KiB
ArmAsm
402 lines
8.8 KiB
ArmAsm
// Reference: www.ssrc.ucsc.edu/Papers/plank-fast13.pdf
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#include "textflag.h"
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#define low_tbl Y0
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#define high_tbl Y1
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#define mask Y2
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#define in0 Y3
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#define in1 Y4
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#define in2 Y5
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#define in3 Y6
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#define in4 Y7
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#define in5 Y8
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#define in0_h Y10
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#define in1_h Y11
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#define in2_h Y12
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#define in3_h Y13
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#define in4_h Y14
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#define in5_h Y15
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#define in BX
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#define out DI
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#define len R8
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#define pos R9
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#define tmp0 R10
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#define low_tblx X0
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#define high_tblx X1
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#define maskx X2
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#define in0x X3
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#define in0_hx X10
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#define tmp0x X9
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#define tmp1x X11
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#define tmp2x X12
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#define tmp3x X13
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// func mulVectAVX2(tbl, d, p []byte)
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TEXT ·mulVectAVX2(SB), NOSPLIT, $0
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MOVQ i+24(FP), in
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MOVQ o+48(FP), out
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MOVQ tbl+0(FP), tmp0
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VMOVDQU (tmp0), low_tblx
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VMOVDQU 16(tmp0), high_tblx
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MOVB $0x0f, DX
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LONG $0x2069e3c4; WORD $0x00d2 // VPINSRB $0x00, EDX, XMM2, XMM2
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VPBROADCASTB maskx, maskx
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MOVQ in_len+32(FP), len
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TESTQ $31, len
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JNZ one16b
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ymm:
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VINSERTI128 $1, low_tblx, low_tbl, low_tbl
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VINSERTI128 $1, high_tblx, high_tbl, high_tbl
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VINSERTI128 $1, maskx, mask, mask
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TESTQ $255, len
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JNZ not_aligned
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// 256bytes/loop
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aligned:
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MOVQ $0, pos
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loop256b:
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VMOVDQU (in)(pos*1), in0
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VPSRLQ $4, in0, in0_h
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VPAND mask, in0_h, in0_h
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VPAND mask, in0, in0
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VPSHUFB in0_h, high_tbl, in0_h
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VPSHUFB in0, low_tbl, in0
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VPXOR in0, in0_h, in0
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VMOVDQU in0, (out)(pos*1)
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VMOVDQU 32(in)(pos*1), in1
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VPSRLQ $4, in1, in1_h
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VPAND mask, in1_h, in1_h
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VPAND mask, in1, in1
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VPSHUFB in1_h, high_tbl, in1_h
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VPSHUFB in1, low_tbl, in1
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VPXOR in1, in1_h, in1
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VMOVDQU in1, 32(out)(pos*1)
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VMOVDQU 64(in)(pos*1), in2
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VPSRLQ $4, in2, in2_h
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VPAND mask, in2_h, in2_h
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VPAND mask, in2, in2
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VPSHUFB in2_h, high_tbl, in2_h
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VPSHUFB in2, low_tbl, in2
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VPXOR in2, in2_h, in2
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VMOVDQU in2, 64(out)(pos*1)
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VMOVDQU 96(in)(pos*1), in3
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VPSRLQ $4, in3, in3_h
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VPAND mask, in3_h, in3_h
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VPAND mask, in3, in3
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VPSHUFB in3_h, high_tbl, in3_h
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VPSHUFB in3, low_tbl, in3
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VPXOR in3, in3_h, in3
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VMOVDQU in3, 96(out)(pos*1)
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VMOVDQU 128(in)(pos*1), in4
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VPSRLQ $4, in4, in4_h
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VPAND mask, in4_h, in4_h
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VPAND mask, in4, in4
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VPSHUFB in4_h, high_tbl, in4_h
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VPSHUFB in4, low_tbl, in4
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VPXOR in4, in4_h, in4
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VMOVDQU in4, 128(out)(pos*1)
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VMOVDQU 160(in)(pos*1), in5
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VPSRLQ $4, in5, in5_h
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VPAND mask, in5_h, in5_h
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VPAND mask, in5, in5
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VPSHUFB in5_h, high_tbl, in5_h
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VPSHUFB in5, low_tbl, in5
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VPXOR in5, in5_h, in5
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VMOVDQU in5, 160(out)(pos*1)
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VMOVDQU 192(in)(pos*1), in0
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VPSRLQ $4, in0, in0_h
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VPAND mask, in0_h, in0_h
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VPAND mask, in0, in0
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VPSHUFB in0_h, high_tbl, in0_h
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VPSHUFB in0, low_tbl, in0
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VPXOR in0, in0_h, in0
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VMOVDQU in0, 192(out)(pos*1)
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VMOVDQU 224(in)(pos*1), in1
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VPSRLQ $4, in1, in1_h
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VPAND mask, in1_h, in1_h
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VPAND mask, in1, in1
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VPSHUFB in1_h, high_tbl, in1_h
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VPSHUFB in1, low_tbl, in1
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VPXOR in1, in1_h, in1
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VMOVDQU in1, 224(out)(pos*1)
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ADDQ $256, pos
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CMPQ len, pos
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JNE loop256b
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VZEROUPPER
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RET
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not_aligned:
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MOVQ len, tmp0
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ANDQ $255, tmp0
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loop32b:
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VMOVDQU -32(in)(len*1), in0
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VPSRLQ $4, in0, in0_h
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VPAND mask, in0_h, in0_h
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VPAND mask, in0, in0
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VPSHUFB in0_h, high_tbl, in0_h
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VPSHUFB in0, low_tbl, in0
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VPXOR in0, in0_h, in0
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VMOVDQU in0, -32(out)(len*1)
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SUBQ $32, len
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SUBQ $32, tmp0
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JG loop32b
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CMPQ len, $256
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JGE aligned
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VZEROUPPER
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RET
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one16b:
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VMOVDQU -16(in)(len*1), in0x
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VPSRLQ $4, in0x, in0_hx
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VPAND maskx, in0x, in0x
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VPAND maskx, in0_hx, in0_hx
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VPSHUFB in0_hx, high_tblx, in0_hx
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VPSHUFB in0x, low_tblx, in0x
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VPXOR in0x, in0_hx, in0x
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VMOVDQU in0x, -16(out)(len*1)
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SUBQ $16, len
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CMPQ len, $0
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JNE ymm
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RET
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// func mulVectAddAVX2(tbl, d, p []byte)
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TEXT ·mulVectAddAVX2(SB), NOSPLIT, $0
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MOVQ i+24(FP), in
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MOVQ o+48(FP), out
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MOVQ tbl+0(FP), tmp0
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VMOVDQU (tmp0), low_tblx
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VMOVDQU 16(tmp0), high_tblx
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MOVB $0x0f, DX
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LONG $0x2069e3c4; WORD $0x00d2
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VPBROADCASTB maskx, maskx
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MOVQ in_len+32(FP), len
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TESTQ $31, len
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JNZ one16b
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ymm:
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VINSERTI128 $1, low_tblx, low_tbl, low_tbl
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VINSERTI128 $1, high_tblx, high_tbl, high_tbl
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VINSERTI128 $1, maskx, mask, mask
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TESTQ $255, len
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JNZ not_aligned
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aligned:
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MOVQ $0, pos
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loop256b:
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VMOVDQU (in)(pos*1), in0
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VPSRLQ $4, in0, in0_h
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VPAND mask, in0_h, in0_h
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VPAND mask, in0, in0
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VPSHUFB in0_h, high_tbl, in0_h
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VPSHUFB in0, low_tbl, in0
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VPXOR in0, in0_h, in0
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VPXOR (out)(pos*1), in0, in0
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VMOVDQU in0, (out)(pos*1)
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VMOVDQU 32(in)(pos*1), in1
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VPSRLQ $4, in1, in1_h
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VPAND mask, in1_h, in1_h
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VPAND mask, in1, in1
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VPSHUFB in1_h, high_tbl, in1_h
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VPSHUFB in1, low_tbl, in1
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VPXOR in1, in1_h, in1
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VPXOR 32(out)(pos*1), in1, in1
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VMOVDQU in1, 32(out)(pos*1)
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VMOVDQU 64(in)(pos*1), in2
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VPSRLQ $4, in2, in2_h
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VPAND mask, in2_h, in2_h
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VPAND mask, in2, in2
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VPSHUFB in2_h, high_tbl, in2_h
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VPSHUFB in2, low_tbl, in2
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VPXOR in2, in2_h, in2
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VPXOR 64(out)(pos*1), in2, in2
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VMOVDQU in2, 64(out)(pos*1)
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VMOVDQU 96(in)(pos*1), in3
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VPSRLQ $4, in3, in3_h
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VPAND mask, in3_h, in3_h
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VPAND mask, in3, in3
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VPSHUFB in3_h, high_tbl, in3_h
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VPSHUFB in3, low_tbl, in3
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VPXOR in3, in3_h, in3
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VPXOR 96(out)(pos*1), in3, in3
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VMOVDQU in3, 96(out)(pos*1)
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VMOVDQU 128(in)(pos*1), in4
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VPSRLQ $4, in4, in4_h
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VPAND mask, in4_h, in4_h
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VPAND mask, in4, in4
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VPSHUFB in4_h, high_tbl, in4_h
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VPSHUFB in4, low_tbl, in4
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VPXOR in4, in4_h, in4
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VPXOR 128(out)(pos*1), in4, in4
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VMOVDQU in4, 128(out)(pos*1)
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VMOVDQU 160(in)(pos*1), in5
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VPSRLQ $4, in5, in5_h
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VPAND mask, in5_h, in5_h
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VPAND mask, in5, in5
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VPSHUFB in5_h, high_tbl, in5_h
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VPSHUFB in5, low_tbl, in5
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VPXOR in5, in5_h, in5
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VPXOR 160(out)(pos*1), in5, in5
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VMOVDQU in5, 160(out)(pos*1)
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VMOVDQU 192(in)(pos*1), in0
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VPSRLQ $4, in0, in0_h
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VPAND mask, in0_h, in0_h
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VPAND mask, in0, in0
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VPSHUFB in0_h, high_tbl, in0_h
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VPSHUFB in0, low_tbl, in0
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VPXOR in0, in0_h, in0
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VPXOR 192(out)(pos*1), in0, in0
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VMOVDQU in0, 192(out)(pos*1)
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VMOVDQU 224(in)(pos*1), in1
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VPSRLQ $4, in1, in1_h
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VPAND mask, in1_h, in1_h
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VPAND mask, in1, in1
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VPSHUFB in1_h, high_tbl, in1_h
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VPSHUFB in1, low_tbl, in1
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VPXOR in1, in1_h, in1
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VPXOR 224(out)(pos*1), in1, in1
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VMOVDQU in1, 224(out)(pos*1)
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ADDQ $256, pos
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CMPQ len, pos
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JNE loop256b
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VZEROUPPER
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RET
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not_aligned:
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MOVQ len, tmp0
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ANDQ $255, tmp0
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loop32b:
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VMOVDQU -32(in)(len*1), in0
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VPSRLQ $4, in0, in0_h
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VPAND mask, in0_h, in0_h
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VPAND mask, in0, in0
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VPSHUFB in0_h, high_tbl, in0_h
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VPSHUFB in0, low_tbl, in0
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VPXOR in0, in0_h, in0
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VPXOR -32(out)(len*1), in0, in0
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VMOVDQU in0, -32(out)(len*1)
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SUBQ $32, len
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SUBQ $32, tmp0
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JG loop32b
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CMPQ len, $256
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JGE aligned
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VZEROUPPER
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RET
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one16b:
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VMOVDQU -16(in)(len*1), in0x
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VPSRLQ $4, in0x, in0_hx
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VPAND maskx, in0x, in0x
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VPAND maskx, in0_hx, in0_hx
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VPSHUFB in0_hx, high_tblx, in0_hx
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VPSHUFB in0x, low_tblx, in0x
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VPXOR in0x, in0_hx, in0x
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VPXOR -16(out)(len*1), in0x, in0x
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VMOVDQU in0x, -16(out)(len*1)
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SUBQ $16, len
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CMPQ len, $0
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JNE ymm
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RET
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// func mulVectSSSE3(tbl, d, p []byte)
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TEXT ·mulVectSSSE3(SB), NOSPLIT, $0
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MOVQ i+24(FP), in
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MOVQ o+48(FP), out
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MOVQ tbl+0(FP), tmp0
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MOVOU (tmp0), low_tblx
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MOVOU 16(tmp0), high_tblx
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MOVB $15, tmp0
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MOVQ tmp0, maskx
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PXOR tmp0x, tmp0x
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PSHUFB tmp0x, maskx
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MOVQ in_len+32(FP), len
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SHRQ $4, len
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loop:
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MOVOU (in), in0x
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MOVOU in0x, in0_hx
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PSRLQ $4, in0_hx
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PAND maskx, in0x
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PAND maskx, in0_hx
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MOVOU low_tblx, tmp1x
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MOVOU high_tblx, tmp2x
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PSHUFB in0x, tmp1x
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PSHUFB in0_hx, tmp2x
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PXOR tmp1x, tmp2x
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MOVOU tmp2x, (out)
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ADDQ $16, in
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ADDQ $16, out
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SUBQ $1, len
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JNZ loop
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RET
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// func mulVectAddSSSE3(tbl, d, p []byte)
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TEXT ·mulVectAddSSSE3(SB), NOSPLIT, $0
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MOVQ i+24(FP), in
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MOVQ o+48(FP), out
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MOVQ tbl+0(FP), tmp0
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MOVOU (tmp0), low_tblx
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MOVOU 16(tmp0), high_tblx
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MOVB $15, tmp0
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MOVQ tmp0, maskx
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PXOR tmp0x, tmp0x
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PSHUFB tmp0x, maskx
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MOVQ in_len+32(FP), len
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SHRQ $4, len
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loop:
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MOVOU (in), in0x
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MOVOU in0x, in0_hx
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PSRLQ $4, in0_hx
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PAND maskx, in0x
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PAND maskx, in0_hx
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MOVOU low_tblx, tmp1x
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MOVOU high_tblx, tmp2x
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PSHUFB in0x, tmp1x
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PSHUFB in0_hx, tmp2x
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PXOR tmp1x, tmp2x
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MOVOU (out), tmp3x
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PXOR tmp3x, tmp2x
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MOVOU tmp2x, (out)
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ADDQ $16, in
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ADDQ $16, out
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SUBQ $1, len
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JNZ loop
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RET
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// func copy32B(dst, src []byte)
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TEXT ·copy32B(SB), NOSPLIT, $0
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MOVQ dst+0(FP), SI
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MOVQ src+24(FP), DX
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MOVOU (DX), X0
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MOVOU 16(DX), X1
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MOVOU X0, (SI)
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MOVOU X1, 16(SI)
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RET
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