1022 lines
24 KiB
ArmAsm
1022 lines
24 KiB
ArmAsm
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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* ChaCha 256-bit cipher algorithm, x64 AVX2 functions
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*
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* Copyright (C) 2015 Martin Willi
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*/
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#include <linux/linkage.h>
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.section .rodata.cst32.ROT8, "aM", @progbits, 32
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.align 32
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ROT8: .octa 0x0e0d0c0f0a09080b0605040702010003
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.octa 0x0e0d0c0f0a09080b0605040702010003
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.section .rodata.cst32.ROT16, "aM", @progbits, 32
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.align 32
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ROT16: .octa 0x0d0c0f0e09080b0a0504070601000302
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.octa 0x0d0c0f0e09080b0a0504070601000302
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.section .rodata.cst32.CTRINC, "aM", @progbits, 32
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.align 32
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CTRINC: .octa 0x00000003000000020000000100000000
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.octa 0x00000007000000060000000500000004
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.section .rodata.cst32.CTR2BL, "aM", @progbits, 32
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.align 32
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CTR2BL: .octa 0x00000000000000000000000000000000
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.octa 0x00000000000000000000000000000001
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.section .rodata.cst32.CTR4BL, "aM", @progbits, 32
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.align 32
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CTR4BL: .octa 0x00000000000000000000000000000002
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.octa 0x00000000000000000000000000000003
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.text
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SYM_FUNC_START(chacha_2block_xor_avx2)
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# %rdi: Input state matrix, s
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# %rsi: up to 2 data blocks output, o
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# %rdx: up to 2 data blocks input, i
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# %rcx: input/output length in bytes
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# %r8d: nrounds
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# This function encrypts two ChaCha blocks by loading the state
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# matrix twice across four AVX registers. It performs matrix operations
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# on four words in each matrix in parallel, but requires shuffling to
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# rearrange the words after each round.
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vzeroupper
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# x0..3[0-2] = s0..3
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vbroadcasti128 0x00(%rdi),%ymm0
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vbroadcasti128 0x10(%rdi),%ymm1
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vbroadcasti128 0x20(%rdi),%ymm2
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vbroadcasti128 0x30(%rdi),%ymm3
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vpaddd CTR2BL(%rip),%ymm3,%ymm3
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vmovdqa %ymm0,%ymm8
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vmovdqa %ymm1,%ymm9
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vmovdqa %ymm2,%ymm10
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vmovdqa %ymm3,%ymm11
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vmovdqa ROT8(%rip),%ymm4
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vmovdqa ROT16(%rip),%ymm5
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mov %rcx,%rax
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.Ldoubleround:
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# x0 += x1, x3 = rotl32(x3 ^ x0, 16)
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vpaddd %ymm1,%ymm0,%ymm0
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vpxor %ymm0,%ymm3,%ymm3
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vpshufb %ymm5,%ymm3,%ymm3
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# x2 += x3, x1 = rotl32(x1 ^ x2, 12)
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vpaddd %ymm3,%ymm2,%ymm2
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vpxor %ymm2,%ymm1,%ymm1
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vmovdqa %ymm1,%ymm6
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vpslld $12,%ymm6,%ymm6
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vpsrld $20,%ymm1,%ymm1
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vpor %ymm6,%ymm1,%ymm1
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# x0 += x1, x3 = rotl32(x3 ^ x0, 8)
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vpaddd %ymm1,%ymm0,%ymm0
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vpxor %ymm0,%ymm3,%ymm3
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vpshufb %ymm4,%ymm3,%ymm3
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# x2 += x3, x1 = rotl32(x1 ^ x2, 7)
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vpaddd %ymm3,%ymm2,%ymm2
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vpxor %ymm2,%ymm1,%ymm1
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vmovdqa %ymm1,%ymm7
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vpslld $7,%ymm7,%ymm7
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vpsrld $25,%ymm1,%ymm1
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vpor %ymm7,%ymm1,%ymm1
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# x1 = shuffle32(x1, MASK(0, 3, 2, 1))
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vpshufd $0x39,%ymm1,%ymm1
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# x2 = shuffle32(x2, MASK(1, 0, 3, 2))
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vpshufd $0x4e,%ymm2,%ymm2
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# x3 = shuffle32(x3, MASK(2, 1, 0, 3))
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vpshufd $0x93,%ymm3,%ymm3
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# x0 += x1, x3 = rotl32(x3 ^ x0, 16)
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vpaddd %ymm1,%ymm0,%ymm0
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vpxor %ymm0,%ymm3,%ymm3
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vpshufb %ymm5,%ymm3,%ymm3
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# x2 += x3, x1 = rotl32(x1 ^ x2, 12)
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vpaddd %ymm3,%ymm2,%ymm2
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vpxor %ymm2,%ymm1,%ymm1
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vmovdqa %ymm1,%ymm6
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vpslld $12,%ymm6,%ymm6
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vpsrld $20,%ymm1,%ymm1
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vpor %ymm6,%ymm1,%ymm1
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# x0 += x1, x3 = rotl32(x3 ^ x0, 8)
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vpaddd %ymm1,%ymm0,%ymm0
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vpxor %ymm0,%ymm3,%ymm3
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vpshufb %ymm4,%ymm3,%ymm3
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# x2 += x3, x1 = rotl32(x1 ^ x2, 7)
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vpaddd %ymm3,%ymm2,%ymm2
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vpxor %ymm2,%ymm1,%ymm1
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vmovdqa %ymm1,%ymm7
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vpslld $7,%ymm7,%ymm7
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vpsrld $25,%ymm1,%ymm1
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vpor %ymm7,%ymm1,%ymm1
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# x1 = shuffle32(x1, MASK(2, 1, 0, 3))
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vpshufd $0x93,%ymm1,%ymm1
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# x2 = shuffle32(x2, MASK(1, 0, 3, 2))
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vpshufd $0x4e,%ymm2,%ymm2
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# x3 = shuffle32(x3, MASK(0, 3, 2, 1))
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vpshufd $0x39,%ymm3,%ymm3
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sub $2,%r8d
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jnz .Ldoubleround
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# o0 = i0 ^ (x0 + s0)
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vpaddd %ymm8,%ymm0,%ymm7
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cmp $0x10,%rax
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jl .Lxorpart2
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vpxor 0x00(%rdx),%xmm7,%xmm6
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vmovdqu %xmm6,0x00(%rsi)
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vextracti128 $1,%ymm7,%xmm0
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# o1 = i1 ^ (x1 + s1)
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vpaddd %ymm9,%ymm1,%ymm7
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cmp $0x20,%rax
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jl .Lxorpart2
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vpxor 0x10(%rdx),%xmm7,%xmm6
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vmovdqu %xmm6,0x10(%rsi)
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vextracti128 $1,%ymm7,%xmm1
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# o2 = i2 ^ (x2 + s2)
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vpaddd %ymm10,%ymm2,%ymm7
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cmp $0x30,%rax
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jl .Lxorpart2
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vpxor 0x20(%rdx),%xmm7,%xmm6
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vmovdqu %xmm6,0x20(%rsi)
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vextracti128 $1,%ymm7,%xmm2
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# o3 = i3 ^ (x3 + s3)
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vpaddd %ymm11,%ymm3,%ymm7
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cmp $0x40,%rax
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jl .Lxorpart2
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vpxor 0x30(%rdx),%xmm7,%xmm6
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vmovdqu %xmm6,0x30(%rsi)
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vextracti128 $1,%ymm7,%xmm3
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# xor and write second block
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vmovdqa %xmm0,%xmm7
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cmp $0x50,%rax
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jl .Lxorpart2
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vpxor 0x40(%rdx),%xmm7,%xmm6
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vmovdqu %xmm6,0x40(%rsi)
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vmovdqa %xmm1,%xmm7
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cmp $0x60,%rax
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jl .Lxorpart2
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vpxor 0x50(%rdx),%xmm7,%xmm6
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vmovdqu %xmm6,0x50(%rsi)
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vmovdqa %xmm2,%xmm7
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cmp $0x70,%rax
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jl .Lxorpart2
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vpxor 0x60(%rdx),%xmm7,%xmm6
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vmovdqu %xmm6,0x60(%rsi)
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vmovdqa %xmm3,%xmm7
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cmp $0x80,%rax
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jl .Lxorpart2
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vpxor 0x70(%rdx),%xmm7,%xmm6
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vmovdqu %xmm6,0x70(%rsi)
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.Ldone2:
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vzeroupper
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RET
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.Lxorpart2:
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# xor remaining bytes from partial register into output
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mov %rax,%r9
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and $0x0f,%r9
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jz .Ldone2
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and $~0x0f,%rax
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mov %rsi,%r11
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lea 8(%rsp),%r10
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sub $0x10,%rsp
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and $~31,%rsp
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lea (%rdx,%rax),%rsi
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mov %rsp,%rdi
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mov %r9,%rcx
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rep movsb
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vpxor 0x00(%rsp),%xmm7,%xmm7
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vmovdqa %xmm7,0x00(%rsp)
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mov %rsp,%rsi
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lea (%r11,%rax),%rdi
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mov %r9,%rcx
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rep movsb
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lea -8(%r10),%rsp
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jmp .Ldone2
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SYM_FUNC_END(chacha_2block_xor_avx2)
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SYM_FUNC_START(chacha_4block_xor_avx2)
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# %rdi: Input state matrix, s
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# %rsi: up to 4 data blocks output, o
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# %rdx: up to 4 data blocks input, i
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# %rcx: input/output length in bytes
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# %r8d: nrounds
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# This function encrypts four ChaCha blocks by loading the state
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# matrix four times across eight AVX registers. It performs matrix
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# operations on four words in two matrices in parallel, sequentially
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# to the operations on the four words of the other two matrices. The
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# required word shuffling has a rather high latency, we can do the
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# arithmetic on two matrix-pairs without much slowdown.
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vzeroupper
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# x0..3[0-4] = s0..3
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vbroadcasti128 0x00(%rdi),%ymm0
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vbroadcasti128 0x10(%rdi),%ymm1
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vbroadcasti128 0x20(%rdi),%ymm2
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vbroadcasti128 0x30(%rdi),%ymm3
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vmovdqa %ymm0,%ymm4
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vmovdqa %ymm1,%ymm5
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vmovdqa %ymm2,%ymm6
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vmovdqa %ymm3,%ymm7
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vpaddd CTR2BL(%rip),%ymm3,%ymm3
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vpaddd CTR4BL(%rip),%ymm7,%ymm7
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vmovdqa %ymm0,%ymm11
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vmovdqa %ymm1,%ymm12
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vmovdqa %ymm2,%ymm13
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vmovdqa %ymm3,%ymm14
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vmovdqa %ymm7,%ymm15
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vmovdqa ROT8(%rip),%ymm8
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vmovdqa ROT16(%rip),%ymm9
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mov %rcx,%rax
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.Ldoubleround4:
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# x0 += x1, x3 = rotl32(x3 ^ x0, 16)
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vpaddd %ymm1,%ymm0,%ymm0
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vpxor %ymm0,%ymm3,%ymm3
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vpshufb %ymm9,%ymm3,%ymm3
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vpaddd %ymm5,%ymm4,%ymm4
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vpxor %ymm4,%ymm7,%ymm7
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vpshufb %ymm9,%ymm7,%ymm7
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# x2 += x3, x1 = rotl32(x1 ^ x2, 12)
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vpaddd %ymm3,%ymm2,%ymm2
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vpxor %ymm2,%ymm1,%ymm1
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vmovdqa %ymm1,%ymm10
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vpslld $12,%ymm10,%ymm10
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vpsrld $20,%ymm1,%ymm1
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vpor %ymm10,%ymm1,%ymm1
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vpaddd %ymm7,%ymm6,%ymm6
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vpxor %ymm6,%ymm5,%ymm5
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vmovdqa %ymm5,%ymm10
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vpslld $12,%ymm10,%ymm10
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vpsrld $20,%ymm5,%ymm5
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vpor %ymm10,%ymm5,%ymm5
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# x0 += x1, x3 = rotl32(x3 ^ x0, 8)
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vpaddd %ymm1,%ymm0,%ymm0
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vpxor %ymm0,%ymm3,%ymm3
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vpshufb %ymm8,%ymm3,%ymm3
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vpaddd %ymm5,%ymm4,%ymm4
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vpxor %ymm4,%ymm7,%ymm7
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vpshufb %ymm8,%ymm7,%ymm7
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# x2 += x3, x1 = rotl32(x1 ^ x2, 7)
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vpaddd %ymm3,%ymm2,%ymm2
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vpxor %ymm2,%ymm1,%ymm1
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vmovdqa %ymm1,%ymm10
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vpslld $7,%ymm10,%ymm10
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vpsrld $25,%ymm1,%ymm1
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vpor %ymm10,%ymm1,%ymm1
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vpaddd %ymm7,%ymm6,%ymm6
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vpxor %ymm6,%ymm5,%ymm5
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vmovdqa %ymm5,%ymm10
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vpslld $7,%ymm10,%ymm10
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vpsrld $25,%ymm5,%ymm5
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vpor %ymm10,%ymm5,%ymm5
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# x1 = shuffle32(x1, MASK(0, 3, 2, 1))
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vpshufd $0x39,%ymm1,%ymm1
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vpshufd $0x39,%ymm5,%ymm5
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# x2 = shuffle32(x2, MASK(1, 0, 3, 2))
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vpshufd $0x4e,%ymm2,%ymm2
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vpshufd $0x4e,%ymm6,%ymm6
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# x3 = shuffle32(x3, MASK(2, 1, 0, 3))
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vpshufd $0x93,%ymm3,%ymm3
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vpshufd $0x93,%ymm7,%ymm7
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# x0 += x1, x3 = rotl32(x3 ^ x0, 16)
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vpaddd %ymm1,%ymm0,%ymm0
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vpxor %ymm0,%ymm3,%ymm3
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vpshufb %ymm9,%ymm3,%ymm3
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vpaddd %ymm5,%ymm4,%ymm4
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vpxor %ymm4,%ymm7,%ymm7
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vpshufb %ymm9,%ymm7,%ymm7
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# x2 += x3, x1 = rotl32(x1 ^ x2, 12)
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vpaddd %ymm3,%ymm2,%ymm2
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vpxor %ymm2,%ymm1,%ymm1
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vmovdqa %ymm1,%ymm10
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vpslld $12,%ymm10,%ymm10
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vpsrld $20,%ymm1,%ymm1
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vpor %ymm10,%ymm1,%ymm1
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vpaddd %ymm7,%ymm6,%ymm6
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vpxor %ymm6,%ymm5,%ymm5
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vmovdqa %ymm5,%ymm10
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vpslld $12,%ymm10,%ymm10
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vpsrld $20,%ymm5,%ymm5
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vpor %ymm10,%ymm5,%ymm5
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# x0 += x1, x3 = rotl32(x3 ^ x0, 8)
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vpaddd %ymm1,%ymm0,%ymm0
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vpxor %ymm0,%ymm3,%ymm3
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vpshufb %ymm8,%ymm3,%ymm3
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vpaddd %ymm5,%ymm4,%ymm4
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vpxor %ymm4,%ymm7,%ymm7
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vpshufb %ymm8,%ymm7,%ymm7
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# x2 += x3, x1 = rotl32(x1 ^ x2, 7)
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vpaddd %ymm3,%ymm2,%ymm2
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vpxor %ymm2,%ymm1,%ymm1
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vmovdqa %ymm1,%ymm10
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vpslld $7,%ymm10,%ymm10
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vpsrld $25,%ymm1,%ymm1
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vpor %ymm10,%ymm1,%ymm1
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vpaddd %ymm7,%ymm6,%ymm6
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vpxor %ymm6,%ymm5,%ymm5
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vmovdqa %ymm5,%ymm10
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vpslld $7,%ymm10,%ymm10
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vpsrld $25,%ymm5,%ymm5
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vpor %ymm10,%ymm5,%ymm5
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# x1 = shuffle32(x1, MASK(2, 1, 0, 3))
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vpshufd $0x93,%ymm1,%ymm1
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vpshufd $0x93,%ymm5,%ymm5
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# x2 = shuffle32(x2, MASK(1, 0, 3, 2))
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vpshufd $0x4e,%ymm2,%ymm2
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vpshufd $0x4e,%ymm6,%ymm6
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# x3 = shuffle32(x3, MASK(0, 3, 2, 1))
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vpshufd $0x39,%ymm3,%ymm3
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vpshufd $0x39,%ymm7,%ymm7
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sub $2,%r8d
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jnz .Ldoubleround4
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# o0 = i0 ^ (x0 + s0), first block
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vpaddd %ymm11,%ymm0,%ymm10
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cmp $0x10,%rax
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jl .Lxorpart4
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vpxor 0x00(%rdx),%xmm10,%xmm9
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vmovdqu %xmm9,0x00(%rsi)
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vextracti128 $1,%ymm10,%xmm0
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# o1 = i1 ^ (x1 + s1), first block
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vpaddd %ymm12,%ymm1,%ymm10
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cmp $0x20,%rax
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jl .Lxorpart4
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vpxor 0x10(%rdx),%xmm10,%xmm9
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vmovdqu %xmm9,0x10(%rsi)
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vextracti128 $1,%ymm10,%xmm1
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# o2 = i2 ^ (x2 + s2), first block
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vpaddd %ymm13,%ymm2,%ymm10
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cmp $0x30,%rax
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jl .Lxorpart4
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vpxor 0x20(%rdx),%xmm10,%xmm9
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vmovdqu %xmm9,0x20(%rsi)
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vextracti128 $1,%ymm10,%xmm2
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# o3 = i3 ^ (x3 + s3), first block
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vpaddd %ymm14,%ymm3,%ymm10
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cmp $0x40,%rax
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jl .Lxorpart4
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vpxor 0x30(%rdx),%xmm10,%xmm9
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vmovdqu %xmm9,0x30(%rsi)
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vextracti128 $1,%ymm10,%xmm3
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# xor and write second block
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vmovdqa %xmm0,%xmm10
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cmp $0x50,%rax
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jl .Lxorpart4
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vpxor 0x40(%rdx),%xmm10,%xmm9
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vmovdqu %xmm9,0x40(%rsi)
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vmovdqa %xmm1,%xmm10
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cmp $0x60,%rax
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jl .Lxorpart4
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vpxor 0x50(%rdx),%xmm10,%xmm9
|
|
vmovdqu %xmm9,0x50(%rsi)
|
|
|
|
vmovdqa %xmm2,%xmm10
|
|
cmp $0x70,%rax
|
|
jl .Lxorpart4
|
|
vpxor 0x60(%rdx),%xmm10,%xmm9
|
|
vmovdqu %xmm9,0x60(%rsi)
|
|
|
|
vmovdqa %xmm3,%xmm10
|
|
cmp $0x80,%rax
|
|
jl .Lxorpart4
|
|
vpxor 0x70(%rdx),%xmm10,%xmm9
|
|
vmovdqu %xmm9,0x70(%rsi)
|
|
|
|
# o0 = i0 ^ (x0 + s0), third block
|
|
vpaddd %ymm11,%ymm4,%ymm10
|
|
cmp $0x90,%rax
|
|
jl .Lxorpart4
|
|
vpxor 0x80(%rdx),%xmm10,%xmm9
|
|
vmovdqu %xmm9,0x80(%rsi)
|
|
vextracti128 $1,%ymm10,%xmm4
|
|
# o1 = i1 ^ (x1 + s1), third block
|
|
vpaddd %ymm12,%ymm5,%ymm10
|
|
cmp $0xa0,%rax
|
|
jl .Lxorpart4
|
|
vpxor 0x90(%rdx),%xmm10,%xmm9
|
|
vmovdqu %xmm9,0x90(%rsi)
|
|
vextracti128 $1,%ymm10,%xmm5
|
|
# o2 = i2 ^ (x2 + s2), third block
|
|
vpaddd %ymm13,%ymm6,%ymm10
|
|
cmp $0xb0,%rax
|
|
jl .Lxorpart4
|
|
vpxor 0xa0(%rdx),%xmm10,%xmm9
|
|
vmovdqu %xmm9,0xa0(%rsi)
|
|
vextracti128 $1,%ymm10,%xmm6
|
|
# o3 = i3 ^ (x3 + s3), third block
|
|
vpaddd %ymm15,%ymm7,%ymm10
|
|
cmp $0xc0,%rax
|
|
jl .Lxorpart4
|
|
vpxor 0xb0(%rdx),%xmm10,%xmm9
|
|
vmovdqu %xmm9,0xb0(%rsi)
|
|
vextracti128 $1,%ymm10,%xmm7
|
|
|
|
# xor and write fourth block
|
|
vmovdqa %xmm4,%xmm10
|
|
cmp $0xd0,%rax
|
|
jl .Lxorpart4
|
|
vpxor 0xc0(%rdx),%xmm10,%xmm9
|
|
vmovdqu %xmm9,0xc0(%rsi)
|
|
|
|
vmovdqa %xmm5,%xmm10
|
|
cmp $0xe0,%rax
|
|
jl .Lxorpart4
|
|
vpxor 0xd0(%rdx),%xmm10,%xmm9
|
|
vmovdqu %xmm9,0xd0(%rsi)
|
|
|
|
vmovdqa %xmm6,%xmm10
|
|
cmp $0xf0,%rax
|
|
jl .Lxorpart4
|
|
vpxor 0xe0(%rdx),%xmm10,%xmm9
|
|
vmovdqu %xmm9,0xe0(%rsi)
|
|
|
|
vmovdqa %xmm7,%xmm10
|
|
cmp $0x100,%rax
|
|
jl .Lxorpart4
|
|
vpxor 0xf0(%rdx),%xmm10,%xmm9
|
|
vmovdqu %xmm9,0xf0(%rsi)
|
|
|
|
.Ldone4:
|
|
vzeroupper
|
|
RET
|
|
|
|
.Lxorpart4:
|
|
# xor remaining bytes from partial register into output
|
|
mov %rax,%r9
|
|
and $0x0f,%r9
|
|
jz .Ldone4
|
|
and $~0x0f,%rax
|
|
|
|
mov %rsi,%r11
|
|
|
|
lea 8(%rsp),%r10
|
|
sub $0x10,%rsp
|
|
and $~31,%rsp
|
|
|
|
lea (%rdx,%rax),%rsi
|
|
mov %rsp,%rdi
|
|
mov %r9,%rcx
|
|
rep movsb
|
|
|
|
vpxor 0x00(%rsp),%xmm10,%xmm10
|
|
vmovdqa %xmm10,0x00(%rsp)
|
|
|
|
mov %rsp,%rsi
|
|
lea (%r11,%rax),%rdi
|
|
mov %r9,%rcx
|
|
rep movsb
|
|
|
|
lea -8(%r10),%rsp
|
|
jmp .Ldone4
|
|
|
|
SYM_FUNC_END(chacha_4block_xor_avx2)
|
|
|
|
SYM_FUNC_START(chacha_8block_xor_avx2)
|
|
# %rdi: Input state matrix, s
|
|
# %rsi: up to 8 data blocks output, o
|
|
# %rdx: up to 8 data blocks input, i
|
|
# %rcx: input/output length in bytes
|
|
# %r8d: nrounds
|
|
|
|
# This function encrypts eight consecutive ChaCha blocks by loading
|
|
# the state matrix in AVX registers eight times. As we need some
|
|
# scratch registers, we save the first four registers on the stack. The
|
|
# algorithm performs each operation on the corresponding word of each
|
|
# state matrix, hence requires no word shuffling. For final XORing step
|
|
# we transpose the matrix by interleaving 32-, 64- and then 128-bit
|
|
# words, which allows us to do XOR in AVX registers. 8/16-bit word
|
|
# rotation is done with the slightly better performing byte shuffling,
|
|
# 7/12-bit word rotation uses traditional shift+OR.
|
|
|
|
vzeroupper
|
|
# 4 * 32 byte stack, 32-byte aligned
|
|
lea 8(%rsp),%r10
|
|
and $~31, %rsp
|
|
sub $0x80, %rsp
|
|
mov %rcx,%rax
|
|
|
|
# x0..15[0-7] = s[0..15]
|
|
vpbroadcastd 0x00(%rdi),%ymm0
|
|
vpbroadcastd 0x04(%rdi),%ymm1
|
|
vpbroadcastd 0x08(%rdi),%ymm2
|
|
vpbroadcastd 0x0c(%rdi),%ymm3
|
|
vpbroadcastd 0x10(%rdi),%ymm4
|
|
vpbroadcastd 0x14(%rdi),%ymm5
|
|
vpbroadcastd 0x18(%rdi),%ymm6
|
|
vpbroadcastd 0x1c(%rdi),%ymm7
|
|
vpbroadcastd 0x20(%rdi),%ymm8
|
|
vpbroadcastd 0x24(%rdi),%ymm9
|
|
vpbroadcastd 0x28(%rdi),%ymm10
|
|
vpbroadcastd 0x2c(%rdi),%ymm11
|
|
vpbroadcastd 0x30(%rdi),%ymm12
|
|
vpbroadcastd 0x34(%rdi),%ymm13
|
|
vpbroadcastd 0x38(%rdi),%ymm14
|
|
vpbroadcastd 0x3c(%rdi),%ymm15
|
|
# x0..3 on stack
|
|
vmovdqa %ymm0,0x00(%rsp)
|
|
vmovdqa %ymm1,0x20(%rsp)
|
|
vmovdqa %ymm2,0x40(%rsp)
|
|
vmovdqa %ymm3,0x60(%rsp)
|
|
|
|
vmovdqa CTRINC(%rip),%ymm1
|
|
vmovdqa ROT8(%rip),%ymm2
|
|
vmovdqa ROT16(%rip),%ymm3
|
|
|
|
# x12 += counter values 0-3
|
|
vpaddd %ymm1,%ymm12,%ymm12
|
|
|
|
.Ldoubleround8:
|
|
# x0 += x4, x12 = rotl32(x12 ^ x0, 16)
|
|
vpaddd 0x00(%rsp),%ymm4,%ymm0
|
|
vmovdqa %ymm0,0x00(%rsp)
|
|
vpxor %ymm0,%ymm12,%ymm12
|
|
vpshufb %ymm3,%ymm12,%ymm12
|
|
# x1 += x5, x13 = rotl32(x13 ^ x1, 16)
|
|
vpaddd 0x20(%rsp),%ymm5,%ymm0
|
|
vmovdqa %ymm0,0x20(%rsp)
|
|
vpxor %ymm0,%ymm13,%ymm13
|
|
vpshufb %ymm3,%ymm13,%ymm13
|
|
# x2 += x6, x14 = rotl32(x14 ^ x2, 16)
|
|
vpaddd 0x40(%rsp),%ymm6,%ymm0
|
|
vmovdqa %ymm0,0x40(%rsp)
|
|
vpxor %ymm0,%ymm14,%ymm14
|
|
vpshufb %ymm3,%ymm14,%ymm14
|
|
# x3 += x7, x15 = rotl32(x15 ^ x3, 16)
|
|
vpaddd 0x60(%rsp),%ymm7,%ymm0
|
|
vmovdqa %ymm0,0x60(%rsp)
|
|
vpxor %ymm0,%ymm15,%ymm15
|
|
vpshufb %ymm3,%ymm15,%ymm15
|
|
|
|
# x8 += x12, x4 = rotl32(x4 ^ x8, 12)
|
|
vpaddd %ymm12,%ymm8,%ymm8
|
|
vpxor %ymm8,%ymm4,%ymm4
|
|
vpslld $12,%ymm4,%ymm0
|
|
vpsrld $20,%ymm4,%ymm4
|
|
vpor %ymm0,%ymm4,%ymm4
|
|
# x9 += x13, x5 = rotl32(x5 ^ x9, 12)
|
|
vpaddd %ymm13,%ymm9,%ymm9
|
|
vpxor %ymm9,%ymm5,%ymm5
|
|
vpslld $12,%ymm5,%ymm0
|
|
vpsrld $20,%ymm5,%ymm5
|
|
vpor %ymm0,%ymm5,%ymm5
|
|
# x10 += x14, x6 = rotl32(x6 ^ x10, 12)
|
|
vpaddd %ymm14,%ymm10,%ymm10
|
|
vpxor %ymm10,%ymm6,%ymm6
|
|
vpslld $12,%ymm6,%ymm0
|
|
vpsrld $20,%ymm6,%ymm6
|
|
vpor %ymm0,%ymm6,%ymm6
|
|
# x11 += x15, x7 = rotl32(x7 ^ x11, 12)
|
|
vpaddd %ymm15,%ymm11,%ymm11
|
|
vpxor %ymm11,%ymm7,%ymm7
|
|
vpslld $12,%ymm7,%ymm0
|
|
vpsrld $20,%ymm7,%ymm7
|
|
vpor %ymm0,%ymm7,%ymm7
|
|
|
|
# x0 += x4, x12 = rotl32(x12 ^ x0, 8)
|
|
vpaddd 0x00(%rsp),%ymm4,%ymm0
|
|
vmovdqa %ymm0,0x00(%rsp)
|
|
vpxor %ymm0,%ymm12,%ymm12
|
|
vpshufb %ymm2,%ymm12,%ymm12
|
|
# x1 += x5, x13 = rotl32(x13 ^ x1, 8)
|
|
vpaddd 0x20(%rsp),%ymm5,%ymm0
|
|
vmovdqa %ymm0,0x20(%rsp)
|
|
vpxor %ymm0,%ymm13,%ymm13
|
|
vpshufb %ymm2,%ymm13,%ymm13
|
|
# x2 += x6, x14 = rotl32(x14 ^ x2, 8)
|
|
vpaddd 0x40(%rsp),%ymm6,%ymm0
|
|
vmovdqa %ymm0,0x40(%rsp)
|
|
vpxor %ymm0,%ymm14,%ymm14
|
|
vpshufb %ymm2,%ymm14,%ymm14
|
|
# x3 += x7, x15 = rotl32(x15 ^ x3, 8)
|
|
vpaddd 0x60(%rsp),%ymm7,%ymm0
|
|
vmovdqa %ymm0,0x60(%rsp)
|
|
vpxor %ymm0,%ymm15,%ymm15
|
|
vpshufb %ymm2,%ymm15,%ymm15
|
|
|
|
# x8 += x12, x4 = rotl32(x4 ^ x8, 7)
|
|
vpaddd %ymm12,%ymm8,%ymm8
|
|
vpxor %ymm8,%ymm4,%ymm4
|
|
vpslld $7,%ymm4,%ymm0
|
|
vpsrld $25,%ymm4,%ymm4
|
|
vpor %ymm0,%ymm4,%ymm4
|
|
# x9 += x13, x5 = rotl32(x5 ^ x9, 7)
|
|
vpaddd %ymm13,%ymm9,%ymm9
|
|
vpxor %ymm9,%ymm5,%ymm5
|
|
vpslld $7,%ymm5,%ymm0
|
|
vpsrld $25,%ymm5,%ymm5
|
|
vpor %ymm0,%ymm5,%ymm5
|
|
# x10 += x14, x6 = rotl32(x6 ^ x10, 7)
|
|
vpaddd %ymm14,%ymm10,%ymm10
|
|
vpxor %ymm10,%ymm6,%ymm6
|
|
vpslld $7,%ymm6,%ymm0
|
|
vpsrld $25,%ymm6,%ymm6
|
|
vpor %ymm0,%ymm6,%ymm6
|
|
# x11 += x15, x7 = rotl32(x7 ^ x11, 7)
|
|
vpaddd %ymm15,%ymm11,%ymm11
|
|
vpxor %ymm11,%ymm7,%ymm7
|
|
vpslld $7,%ymm7,%ymm0
|
|
vpsrld $25,%ymm7,%ymm7
|
|
vpor %ymm0,%ymm7,%ymm7
|
|
|
|
# x0 += x5, x15 = rotl32(x15 ^ x0, 16)
|
|
vpaddd 0x00(%rsp),%ymm5,%ymm0
|
|
vmovdqa %ymm0,0x00(%rsp)
|
|
vpxor %ymm0,%ymm15,%ymm15
|
|
vpshufb %ymm3,%ymm15,%ymm15
|
|
# x1 += x6, x12 = rotl32(x12 ^ x1, 16)%ymm0
|
|
vpaddd 0x20(%rsp),%ymm6,%ymm0
|
|
vmovdqa %ymm0,0x20(%rsp)
|
|
vpxor %ymm0,%ymm12,%ymm12
|
|
vpshufb %ymm3,%ymm12,%ymm12
|
|
# x2 += x7, x13 = rotl32(x13 ^ x2, 16)
|
|
vpaddd 0x40(%rsp),%ymm7,%ymm0
|
|
vmovdqa %ymm0,0x40(%rsp)
|
|
vpxor %ymm0,%ymm13,%ymm13
|
|
vpshufb %ymm3,%ymm13,%ymm13
|
|
# x3 += x4, x14 = rotl32(x14 ^ x3, 16)
|
|
vpaddd 0x60(%rsp),%ymm4,%ymm0
|
|
vmovdqa %ymm0,0x60(%rsp)
|
|
vpxor %ymm0,%ymm14,%ymm14
|
|
vpshufb %ymm3,%ymm14,%ymm14
|
|
|
|
# x10 += x15, x5 = rotl32(x5 ^ x10, 12)
|
|
vpaddd %ymm15,%ymm10,%ymm10
|
|
vpxor %ymm10,%ymm5,%ymm5
|
|
vpslld $12,%ymm5,%ymm0
|
|
vpsrld $20,%ymm5,%ymm5
|
|
vpor %ymm0,%ymm5,%ymm5
|
|
# x11 += x12, x6 = rotl32(x6 ^ x11, 12)
|
|
vpaddd %ymm12,%ymm11,%ymm11
|
|
vpxor %ymm11,%ymm6,%ymm6
|
|
vpslld $12,%ymm6,%ymm0
|
|
vpsrld $20,%ymm6,%ymm6
|
|
vpor %ymm0,%ymm6,%ymm6
|
|
# x8 += x13, x7 = rotl32(x7 ^ x8, 12)
|
|
vpaddd %ymm13,%ymm8,%ymm8
|
|
vpxor %ymm8,%ymm7,%ymm7
|
|
vpslld $12,%ymm7,%ymm0
|
|
vpsrld $20,%ymm7,%ymm7
|
|
vpor %ymm0,%ymm7,%ymm7
|
|
# x9 += x14, x4 = rotl32(x4 ^ x9, 12)
|
|
vpaddd %ymm14,%ymm9,%ymm9
|
|
vpxor %ymm9,%ymm4,%ymm4
|
|
vpslld $12,%ymm4,%ymm0
|
|
vpsrld $20,%ymm4,%ymm4
|
|
vpor %ymm0,%ymm4,%ymm4
|
|
|
|
# x0 += x5, x15 = rotl32(x15 ^ x0, 8)
|
|
vpaddd 0x00(%rsp),%ymm5,%ymm0
|
|
vmovdqa %ymm0,0x00(%rsp)
|
|
vpxor %ymm0,%ymm15,%ymm15
|
|
vpshufb %ymm2,%ymm15,%ymm15
|
|
# x1 += x6, x12 = rotl32(x12 ^ x1, 8)
|
|
vpaddd 0x20(%rsp),%ymm6,%ymm0
|
|
vmovdqa %ymm0,0x20(%rsp)
|
|
vpxor %ymm0,%ymm12,%ymm12
|
|
vpshufb %ymm2,%ymm12,%ymm12
|
|
# x2 += x7, x13 = rotl32(x13 ^ x2, 8)
|
|
vpaddd 0x40(%rsp),%ymm7,%ymm0
|
|
vmovdqa %ymm0,0x40(%rsp)
|
|
vpxor %ymm0,%ymm13,%ymm13
|
|
vpshufb %ymm2,%ymm13,%ymm13
|
|
# x3 += x4, x14 = rotl32(x14 ^ x3, 8)
|
|
vpaddd 0x60(%rsp),%ymm4,%ymm0
|
|
vmovdqa %ymm0,0x60(%rsp)
|
|
vpxor %ymm0,%ymm14,%ymm14
|
|
vpshufb %ymm2,%ymm14,%ymm14
|
|
|
|
# x10 += x15, x5 = rotl32(x5 ^ x10, 7)
|
|
vpaddd %ymm15,%ymm10,%ymm10
|
|
vpxor %ymm10,%ymm5,%ymm5
|
|
vpslld $7,%ymm5,%ymm0
|
|
vpsrld $25,%ymm5,%ymm5
|
|
vpor %ymm0,%ymm5,%ymm5
|
|
# x11 += x12, x6 = rotl32(x6 ^ x11, 7)
|
|
vpaddd %ymm12,%ymm11,%ymm11
|
|
vpxor %ymm11,%ymm6,%ymm6
|
|
vpslld $7,%ymm6,%ymm0
|
|
vpsrld $25,%ymm6,%ymm6
|
|
vpor %ymm0,%ymm6,%ymm6
|
|
# x8 += x13, x7 = rotl32(x7 ^ x8, 7)
|
|
vpaddd %ymm13,%ymm8,%ymm8
|
|
vpxor %ymm8,%ymm7,%ymm7
|
|
vpslld $7,%ymm7,%ymm0
|
|
vpsrld $25,%ymm7,%ymm7
|
|
vpor %ymm0,%ymm7,%ymm7
|
|
# x9 += x14, x4 = rotl32(x4 ^ x9, 7)
|
|
vpaddd %ymm14,%ymm9,%ymm9
|
|
vpxor %ymm9,%ymm4,%ymm4
|
|
vpslld $7,%ymm4,%ymm0
|
|
vpsrld $25,%ymm4,%ymm4
|
|
vpor %ymm0,%ymm4,%ymm4
|
|
|
|
sub $2,%r8d
|
|
jnz .Ldoubleround8
|
|
|
|
# x0..15[0-3] += s[0..15]
|
|
vpbroadcastd 0x00(%rdi),%ymm0
|
|
vpaddd 0x00(%rsp),%ymm0,%ymm0
|
|
vmovdqa %ymm0,0x00(%rsp)
|
|
vpbroadcastd 0x04(%rdi),%ymm0
|
|
vpaddd 0x20(%rsp),%ymm0,%ymm0
|
|
vmovdqa %ymm0,0x20(%rsp)
|
|
vpbroadcastd 0x08(%rdi),%ymm0
|
|
vpaddd 0x40(%rsp),%ymm0,%ymm0
|
|
vmovdqa %ymm0,0x40(%rsp)
|
|
vpbroadcastd 0x0c(%rdi),%ymm0
|
|
vpaddd 0x60(%rsp),%ymm0,%ymm0
|
|
vmovdqa %ymm0,0x60(%rsp)
|
|
vpbroadcastd 0x10(%rdi),%ymm0
|
|
vpaddd %ymm0,%ymm4,%ymm4
|
|
vpbroadcastd 0x14(%rdi),%ymm0
|
|
vpaddd %ymm0,%ymm5,%ymm5
|
|
vpbroadcastd 0x18(%rdi),%ymm0
|
|
vpaddd %ymm0,%ymm6,%ymm6
|
|
vpbroadcastd 0x1c(%rdi),%ymm0
|
|
vpaddd %ymm0,%ymm7,%ymm7
|
|
vpbroadcastd 0x20(%rdi),%ymm0
|
|
vpaddd %ymm0,%ymm8,%ymm8
|
|
vpbroadcastd 0x24(%rdi),%ymm0
|
|
vpaddd %ymm0,%ymm9,%ymm9
|
|
vpbroadcastd 0x28(%rdi),%ymm0
|
|
vpaddd %ymm0,%ymm10,%ymm10
|
|
vpbroadcastd 0x2c(%rdi),%ymm0
|
|
vpaddd %ymm0,%ymm11,%ymm11
|
|
vpbroadcastd 0x30(%rdi),%ymm0
|
|
vpaddd %ymm0,%ymm12,%ymm12
|
|
vpbroadcastd 0x34(%rdi),%ymm0
|
|
vpaddd %ymm0,%ymm13,%ymm13
|
|
vpbroadcastd 0x38(%rdi),%ymm0
|
|
vpaddd %ymm0,%ymm14,%ymm14
|
|
vpbroadcastd 0x3c(%rdi),%ymm0
|
|
vpaddd %ymm0,%ymm15,%ymm15
|
|
|
|
# x12 += counter values 0-3
|
|
vpaddd %ymm1,%ymm12,%ymm12
|
|
|
|
# interleave 32-bit words in state n, n+1
|
|
vmovdqa 0x00(%rsp),%ymm0
|
|
vmovdqa 0x20(%rsp),%ymm1
|
|
vpunpckldq %ymm1,%ymm0,%ymm2
|
|
vpunpckhdq %ymm1,%ymm0,%ymm1
|
|
vmovdqa %ymm2,0x00(%rsp)
|
|
vmovdqa %ymm1,0x20(%rsp)
|
|
vmovdqa 0x40(%rsp),%ymm0
|
|
vmovdqa 0x60(%rsp),%ymm1
|
|
vpunpckldq %ymm1,%ymm0,%ymm2
|
|
vpunpckhdq %ymm1,%ymm0,%ymm1
|
|
vmovdqa %ymm2,0x40(%rsp)
|
|
vmovdqa %ymm1,0x60(%rsp)
|
|
vmovdqa %ymm4,%ymm0
|
|
vpunpckldq %ymm5,%ymm0,%ymm4
|
|
vpunpckhdq %ymm5,%ymm0,%ymm5
|
|
vmovdqa %ymm6,%ymm0
|
|
vpunpckldq %ymm7,%ymm0,%ymm6
|
|
vpunpckhdq %ymm7,%ymm0,%ymm7
|
|
vmovdqa %ymm8,%ymm0
|
|
vpunpckldq %ymm9,%ymm0,%ymm8
|
|
vpunpckhdq %ymm9,%ymm0,%ymm9
|
|
vmovdqa %ymm10,%ymm0
|
|
vpunpckldq %ymm11,%ymm0,%ymm10
|
|
vpunpckhdq %ymm11,%ymm0,%ymm11
|
|
vmovdqa %ymm12,%ymm0
|
|
vpunpckldq %ymm13,%ymm0,%ymm12
|
|
vpunpckhdq %ymm13,%ymm0,%ymm13
|
|
vmovdqa %ymm14,%ymm0
|
|
vpunpckldq %ymm15,%ymm0,%ymm14
|
|
vpunpckhdq %ymm15,%ymm0,%ymm15
|
|
|
|
# interleave 64-bit words in state n, n+2
|
|
vmovdqa 0x00(%rsp),%ymm0
|
|
vmovdqa 0x40(%rsp),%ymm2
|
|
vpunpcklqdq %ymm2,%ymm0,%ymm1
|
|
vpunpckhqdq %ymm2,%ymm0,%ymm2
|
|
vmovdqa %ymm1,0x00(%rsp)
|
|
vmovdqa %ymm2,0x40(%rsp)
|
|
vmovdqa 0x20(%rsp),%ymm0
|
|
vmovdqa 0x60(%rsp),%ymm2
|
|
vpunpcklqdq %ymm2,%ymm0,%ymm1
|
|
vpunpckhqdq %ymm2,%ymm0,%ymm2
|
|
vmovdqa %ymm1,0x20(%rsp)
|
|
vmovdqa %ymm2,0x60(%rsp)
|
|
vmovdqa %ymm4,%ymm0
|
|
vpunpcklqdq %ymm6,%ymm0,%ymm4
|
|
vpunpckhqdq %ymm6,%ymm0,%ymm6
|
|
vmovdqa %ymm5,%ymm0
|
|
vpunpcklqdq %ymm7,%ymm0,%ymm5
|
|
vpunpckhqdq %ymm7,%ymm0,%ymm7
|
|
vmovdqa %ymm8,%ymm0
|
|
vpunpcklqdq %ymm10,%ymm0,%ymm8
|
|
vpunpckhqdq %ymm10,%ymm0,%ymm10
|
|
vmovdqa %ymm9,%ymm0
|
|
vpunpcklqdq %ymm11,%ymm0,%ymm9
|
|
vpunpckhqdq %ymm11,%ymm0,%ymm11
|
|
vmovdqa %ymm12,%ymm0
|
|
vpunpcklqdq %ymm14,%ymm0,%ymm12
|
|
vpunpckhqdq %ymm14,%ymm0,%ymm14
|
|
vmovdqa %ymm13,%ymm0
|
|
vpunpcklqdq %ymm15,%ymm0,%ymm13
|
|
vpunpckhqdq %ymm15,%ymm0,%ymm15
|
|
|
|
# interleave 128-bit words in state n, n+4
|
|
# xor/write first four blocks
|
|
vmovdqa 0x00(%rsp),%ymm1
|
|
vperm2i128 $0x20,%ymm4,%ymm1,%ymm0
|
|
cmp $0x0020,%rax
|
|
jl .Lxorpart8
|
|
vpxor 0x0000(%rdx),%ymm0,%ymm0
|
|
vmovdqu %ymm0,0x0000(%rsi)
|
|
vperm2i128 $0x31,%ymm4,%ymm1,%ymm4
|
|
|
|
vperm2i128 $0x20,%ymm12,%ymm8,%ymm0
|
|
cmp $0x0040,%rax
|
|
jl .Lxorpart8
|
|
vpxor 0x0020(%rdx),%ymm0,%ymm0
|
|
vmovdqu %ymm0,0x0020(%rsi)
|
|
vperm2i128 $0x31,%ymm12,%ymm8,%ymm12
|
|
|
|
vmovdqa 0x40(%rsp),%ymm1
|
|
vperm2i128 $0x20,%ymm6,%ymm1,%ymm0
|
|
cmp $0x0060,%rax
|
|
jl .Lxorpart8
|
|
vpxor 0x0040(%rdx),%ymm0,%ymm0
|
|
vmovdqu %ymm0,0x0040(%rsi)
|
|
vperm2i128 $0x31,%ymm6,%ymm1,%ymm6
|
|
|
|
vperm2i128 $0x20,%ymm14,%ymm10,%ymm0
|
|
cmp $0x0080,%rax
|
|
jl .Lxorpart8
|
|
vpxor 0x0060(%rdx),%ymm0,%ymm0
|
|
vmovdqu %ymm0,0x0060(%rsi)
|
|
vperm2i128 $0x31,%ymm14,%ymm10,%ymm14
|
|
|
|
vmovdqa 0x20(%rsp),%ymm1
|
|
vperm2i128 $0x20,%ymm5,%ymm1,%ymm0
|
|
cmp $0x00a0,%rax
|
|
jl .Lxorpart8
|
|
vpxor 0x0080(%rdx),%ymm0,%ymm0
|
|
vmovdqu %ymm0,0x0080(%rsi)
|
|
vperm2i128 $0x31,%ymm5,%ymm1,%ymm5
|
|
|
|
vperm2i128 $0x20,%ymm13,%ymm9,%ymm0
|
|
cmp $0x00c0,%rax
|
|
jl .Lxorpart8
|
|
vpxor 0x00a0(%rdx),%ymm0,%ymm0
|
|
vmovdqu %ymm0,0x00a0(%rsi)
|
|
vperm2i128 $0x31,%ymm13,%ymm9,%ymm13
|
|
|
|
vmovdqa 0x60(%rsp),%ymm1
|
|
vperm2i128 $0x20,%ymm7,%ymm1,%ymm0
|
|
cmp $0x00e0,%rax
|
|
jl .Lxorpart8
|
|
vpxor 0x00c0(%rdx),%ymm0,%ymm0
|
|
vmovdqu %ymm0,0x00c0(%rsi)
|
|
vperm2i128 $0x31,%ymm7,%ymm1,%ymm7
|
|
|
|
vperm2i128 $0x20,%ymm15,%ymm11,%ymm0
|
|
cmp $0x0100,%rax
|
|
jl .Lxorpart8
|
|
vpxor 0x00e0(%rdx),%ymm0,%ymm0
|
|
vmovdqu %ymm0,0x00e0(%rsi)
|
|
vperm2i128 $0x31,%ymm15,%ymm11,%ymm15
|
|
|
|
# xor remaining blocks, write to output
|
|
vmovdqa %ymm4,%ymm0
|
|
cmp $0x0120,%rax
|
|
jl .Lxorpart8
|
|
vpxor 0x0100(%rdx),%ymm0,%ymm0
|
|
vmovdqu %ymm0,0x0100(%rsi)
|
|
|
|
vmovdqa %ymm12,%ymm0
|
|
cmp $0x0140,%rax
|
|
jl .Lxorpart8
|
|
vpxor 0x0120(%rdx),%ymm0,%ymm0
|
|
vmovdqu %ymm0,0x0120(%rsi)
|
|
|
|
vmovdqa %ymm6,%ymm0
|
|
cmp $0x0160,%rax
|
|
jl .Lxorpart8
|
|
vpxor 0x0140(%rdx),%ymm0,%ymm0
|
|
vmovdqu %ymm0,0x0140(%rsi)
|
|
|
|
vmovdqa %ymm14,%ymm0
|
|
cmp $0x0180,%rax
|
|
jl .Lxorpart8
|
|
vpxor 0x0160(%rdx),%ymm0,%ymm0
|
|
vmovdqu %ymm0,0x0160(%rsi)
|
|
|
|
vmovdqa %ymm5,%ymm0
|
|
cmp $0x01a0,%rax
|
|
jl .Lxorpart8
|
|
vpxor 0x0180(%rdx),%ymm0,%ymm0
|
|
vmovdqu %ymm0,0x0180(%rsi)
|
|
|
|
vmovdqa %ymm13,%ymm0
|
|
cmp $0x01c0,%rax
|
|
jl .Lxorpart8
|
|
vpxor 0x01a0(%rdx),%ymm0,%ymm0
|
|
vmovdqu %ymm0,0x01a0(%rsi)
|
|
|
|
vmovdqa %ymm7,%ymm0
|
|
cmp $0x01e0,%rax
|
|
jl .Lxorpart8
|
|
vpxor 0x01c0(%rdx),%ymm0,%ymm0
|
|
vmovdqu %ymm0,0x01c0(%rsi)
|
|
|
|
vmovdqa %ymm15,%ymm0
|
|
cmp $0x0200,%rax
|
|
jl .Lxorpart8
|
|
vpxor 0x01e0(%rdx),%ymm0,%ymm0
|
|
vmovdqu %ymm0,0x01e0(%rsi)
|
|
|
|
.Ldone8:
|
|
vzeroupper
|
|
lea -8(%r10),%rsp
|
|
RET
|
|
|
|
.Lxorpart8:
|
|
# xor remaining bytes from partial register into output
|
|
mov %rax,%r9
|
|
and $0x1f,%r9
|
|
jz .Ldone8
|
|
and $~0x1f,%rax
|
|
|
|
mov %rsi,%r11
|
|
|
|
lea (%rdx,%rax),%rsi
|
|
mov %rsp,%rdi
|
|
mov %r9,%rcx
|
|
rep movsb
|
|
|
|
vpxor 0x00(%rsp),%ymm0,%ymm0
|
|
vmovdqa %ymm0,0x00(%rsp)
|
|
|
|
mov %rsp,%rsi
|
|
lea (%r11,%rax),%rdi
|
|
mov %r9,%rcx
|
|
rep movsb
|
|
|
|
jmp .Ldone8
|
|
|
|
SYM_FUNC_END(chacha_8block_xor_avx2)
|