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145 lines
4.1 KiB
145 lines
4.1 KiB
3 years ago
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// Code generated by command: go run decode_asm.go -pkg base64 -out ../base64/decode_amd64.s -stubs ../base64/decode_amd64.go. DO NOT EDIT.
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//go:build !purego
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// +build !purego
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#include "textflag.h"
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DATA b64_dec_lut_hi<>+0(SB)/8, $0x0804080402011010
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DATA b64_dec_lut_hi<>+8(SB)/8, $0x1010101010101010
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DATA b64_dec_lut_hi<>+16(SB)/8, $0x0804080402011010
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DATA b64_dec_lut_hi<>+24(SB)/8, $0x1010101010101010
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GLOBL b64_dec_lut_hi<>(SB), RODATA|NOPTR, $32
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DATA b64_dec_madd1<>+0(SB)/8, $0x0140014001400140
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DATA b64_dec_madd1<>+8(SB)/8, $0x0140014001400140
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DATA b64_dec_madd1<>+16(SB)/8, $0x0140014001400140
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DATA b64_dec_madd1<>+24(SB)/8, $0x0140014001400140
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GLOBL b64_dec_madd1<>(SB), RODATA|NOPTR, $32
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DATA b64_dec_madd2<>+0(SB)/8, $0x0001100000011000
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DATA b64_dec_madd2<>+8(SB)/8, $0x0001100000011000
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DATA b64_dec_madd2<>+16(SB)/8, $0x0001100000011000
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DATA b64_dec_madd2<>+24(SB)/8, $0x0001100000011000
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GLOBL b64_dec_madd2<>(SB), RODATA|NOPTR, $32
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DATA b64_dec_shuf_lo<>+0(SB)/8, $0x0000000000000000
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DATA b64_dec_shuf_lo<>+8(SB)/8, $0x0600010200000000
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GLOBL b64_dec_shuf_lo<>(SB), RODATA|NOPTR, $16
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DATA b64_dec_shuf<>+0(SB)/8, $0x090a040506000102
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DATA b64_dec_shuf<>+8(SB)/8, $0x000000000c0d0e08
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DATA b64_dec_shuf<>+16(SB)/8, $0x0c0d0e08090a0405
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DATA b64_dec_shuf<>+24(SB)/8, $0x0000000000000000
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GLOBL b64_dec_shuf<>(SB), RODATA|NOPTR, $32
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// func decodeAVX2(dst []byte, src []byte, lut *int8) (int, int)
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// Requires: AVX, AVX2, SSE4.1
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TEXT ·decodeAVX2(SB), NOSPLIT, $0-72
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MOVQ dst_base+0(FP), AX
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MOVQ src_base+24(FP), DX
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MOVQ lut+48(FP), SI
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MOVQ src_len+32(FP), DI
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MOVB $0x2f, CL
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PINSRB $0x00, CX, X8
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VPBROADCASTB X8, Y8
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XORQ CX, CX
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XORQ BX, BX
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VPXOR Y7, Y7, Y7
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VPERMQ $0x44, (SI), Y6
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VPERMQ $0x44, 16(SI), Y4
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VMOVDQA b64_dec_lut_hi<>+0(SB), Y5
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loop:
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VMOVDQU (DX)(BX*1), Y0
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VPSRLD $0x04, Y0, Y2
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VPAND Y8, Y0, Y3
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VPSHUFB Y3, Y4, Y3
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VPAND Y8, Y2, Y2
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VPSHUFB Y2, Y5, Y9
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VPTEST Y9, Y3
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JNE done
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VPCMPEQB Y8, Y0, Y3
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VPADDB Y3, Y2, Y2
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VPSHUFB Y2, Y6, Y2
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VPADDB Y0, Y2, Y0
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VPMADDUBSW b64_dec_madd1<>+0(SB), Y0, Y0
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VPMADDWD b64_dec_madd2<>+0(SB), Y0, Y0
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VEXTRACTI128 $0x01, Y0, X1
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VPSHUFB b64_dec_shuf_lo<>+0(SB), X1, X1
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VPSHUFB b64_dec_shuf<>+0(SB), Y0, Y0
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VPBLENDD $0x08, Y1, Y0, Y1
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VPBLENDD $0xc0, Y7, Y1, Y1
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VMOVDQU Y1, (AX)(CX*1)
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ADDQ $0x18, CX
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ADDQ $0x20, BX
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SUBQ $0x20, DI
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CMPQ DI, $0x2d
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JB done
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JMP loop
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done:
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MOVQ CX, ret+56(FP)
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MOVQ BX, ret1+64(FP)
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VZEROUPPER
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RET
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// func decodeAVX2URI(dst []byte, src []byte, lut *int8) (int, int)
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// Requires: AVX, AVX2, SSE4.1
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TEXT ·decodeAVX2URI(SB), NOSPLIT, $0-72
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MOVB $0x2f, AL
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PINSRB $0x00, AX, X0
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VPBROADCASTB X0, Y0
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MOVB $0x5f, AL
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PINSRB $0x00, AX, X1
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VPBROADCASTB X1, Y1
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MOVQ dst_base+0(FP), AX
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MOVQ src_base+24(FP), DX
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MOVQ lut+48(FP), SI
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MOVQ src_len+32(FP), DI
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MOVB $0x2f, CL
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PINSRB $0x00, CX, X10
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VPBROADCASTB X10, Y10
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XORQ CX, CX
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XORQ BX, BX
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VPXOR Y9, Y9, Y9
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VPERMQ $0x44, (SI), Y8
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VPERMQ $0x44, 16(SI), Y6
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VMOVDQA b64_dec_lut_hi<>+0(SB), Y7
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loop:
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VMOVDQU (DX)(BX*1), Y2
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VPCMPEQB Y2, Y1, Y4
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VPBLENDVB Y4, Y0, Y2, Y2
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VPSRLD $0x04, Y2, Y4
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VPAND Y10, Y2, Y5
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VPSHUFB Y5, Y6, Y5
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VPAND Y10, Y4, Y4
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VPSHUFB Y4, Y7, Y11
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VPTEST Y11, Y5
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JNE done
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VPCMPEQB Y10, Y2, Y5
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VPADDB Y5, Y4, Y4
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VPSHUFB Y4, Y8, Y4
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VPADDB Y2, Y4, Y2
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VPMADDUBSW b64_dec_madd1<>+0(SB), Y2, Y2
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VPMADDWD b64_dec_madd2<>+0(SB), Y2, Y2
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VEXTRACTI128 $0x01, Y2, X3
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VPSHUFB b64_dec_shuf_lo<>+0(SB), X3, X3
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VPSHUFB b64_dec_shuf<>+0(SB), Y2, Y2
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VPBLENDD $0x08, Y3, Y2, Y3
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VPBLENDD $0xc0, Y9, Y3, Y3
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VMOVDQU Y3, (AX)(CX*1)
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ADDQ $0x18, CX
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ADDQ $0x20, BX
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SUBQ $0x20, DI
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CMPQ DI, $0x2d
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JB done
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JMP loop
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done:
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MOVQ CX, ret+56(FP)
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MOVQ BX, ret1+64(FP)
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VZEROUPPER
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RET
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