1016 lines
25 KiB
ArmAsm
1016 lines
25 KiB
ArmAsm
/* chacha20-amd64-ssse3.S - SSSE3 implementation of ChaCha20 cipher
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*
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* Copyright (C) 2017-2019 Jussi Kivilinna <jussi.kivilinna@iki.fi>
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*
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* This file is part of Libgcrypt.
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*
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* Libgcrypt is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as
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* published by the Free Software Foundation; either version 2.1 of
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* the License, or (at your option) any later version.
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*
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* Libgcrypt is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this program; if not, see <http://www.gnu.org/licenses/>.
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*/
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/*
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* Based on D. J. Bernstein reference implementation at
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* http://cr.yp.to/chacha.html:
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*
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* chacha-regs.c version 20080118
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* D. J. Bernstein
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* Public domain.
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*/
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#ifdef __x86_64
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#include <config.h>
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#if defined(HAVE_GCC_INLINE_ASM_SSSE3) && \
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(defined(HAVE_COMPATIBLE_GCC_AMD64_PLATFORM_AS) || \
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defined(HAVE_COMPATIBLE_GCC_WIN64_PLATFORM_AS))
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#include "asm-common-amd64.h"
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#include "asm-poly1305-amd64.h"
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/* register macros */
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#define INPUT %rdi
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#define DST %rsi
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#define SRC %rdx
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#define NBLKS %rcx
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#define ROUND %eax
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/* stack structure */
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#define STACK_VEC_X12 (16)
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#define STACK_VEC_X13 (16 + STACK_VEC_X12)
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#define STACK_TMP (16 + STACK_VEC_X13)
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#define STACK_TMP1 (16 + STACK_TMP)
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#define STACK_TMP2 (16 + STACK_TMP1)
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#define STACK_MAX (16 + STACK_TMP2)
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/* vector registers */
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#define X0 %xmm0
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#define X1 %xmm1
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#define X2 %xmm2
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#define X3 %xmm3
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#define X4 %xmm4
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#define X5 %xmm5
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#define X6 %xmm6
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#define X7 %xmm7
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#define X8 %xmm8
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#define X9 %xmm9
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#define X10 %xmm10
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#define X11 %xmm11
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#define X12 %xmm12
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#define X13 %xmm13
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#define X14 %xmm14
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#define X15 %xmm15
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/**********************************************************************
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helper macros
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**********************************************************************/
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/* 4x4 32-bit integer matrix transpose */
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#define transpose_4x4(x0, x1, x2, x3, t1, t2, t3) \
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movdqa x0, t2; \
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punpckhdq x1, t2; \
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punpckldq x1, x0; \
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\
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movdqa x2, t1; \
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punpckldq x3, t1; \
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punpckhdq x3, x2; \
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\
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movdqa x0, x1; \
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punpckhqdq t1, x1; \
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punpcklqdq t1, x0; \
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\
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movdqa t2, x3; \
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punpckhqdq x2, x3; \
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punpcklqdq x2, t2; \
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movdqa t2, x2;
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/* fill xmm register with 32-bit value from memory */
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#define pbroadcastd(mem32, xreg) \
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movd mem32, xreg; \
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pshufd $0, xreg, xreg;
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/* xor with unaligned memory operand */
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#define pxor_u(umem128, xreg, t) \
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movdqu umem128, t; \
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pxor t, xreg;
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/* xor register with unaligned src and save to unaligned dst */
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#define xor_src_dst(dst, src, offset, xreg, t) \
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pxor_u(offset(src), xreg, t); \
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movdqu xreg, offset(dst);
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#define clear(x) pxor x,x;
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/**********************************************************************
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4-way chacha20
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**********************************************************************/
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#define ROTATE2(v1,v2,c,tmp1,tmp2) \
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movdqa v1, tmp1; \
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movdqa v2, tmp2; \
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psrld $(32 - (c)), v1; \
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pslld $(c), tmp1; \
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paddb tmp1, v1; \
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psrld $(32 - (c)), v2; \
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pslld $(c), tmp2; \
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paddb tmp2, v2;
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#define ROTATE_SHUF_2(v1,v2,shuf) \
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pshufb shuf, v1; \
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pshufb shuf, v2;
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#define XOR(ds,s) \
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pxor s, ds;
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#define PLUS(ds,s) \
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paddd s, ds;
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#define QUARTERROUND2(a1,b1,c1,d1,a2,b2,c2,d2,ign,tmp1,tmp2,\
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interleave_op1,interleave_op2) \
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movdqa .Lshuf_rol16 rRIP, tmp1; \
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interleave_op1; \
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PLUS(a1,b1); PLUS(a2,b2); XOR(d1,a1); XOR(d2,a2); \
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ROTATE_SHUF_2(d1, d2, tmp1); \
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PLUS(c1,d1); PLUS(c2,d2); XOR(b1,c1); XOR(b2,c2); \
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ROTATE2(b1, b2, 12, tmp1, tmp2); \
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movdqa .Lshuf_rol8 rRIP, tmp1; \
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interleave_op2; \
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PLUS(a1,b1); PLUS(a2,b2); XOR(d1,a1); XOR(d2,a2); \
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ROTATE_SHUF_2(d1, d2, tmp1); \
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PLUS(c1,d1); PLUS(c2,d2); XOR(b1,c1); XOR(b2,c2); \
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ROTATE2(b1, b2, 7, tmp1, tmp2);
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SECTION_RODATA
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ELF(.type _chacha20_ssse3_data,@object;)
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_chacha20_ssse3_data:
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.align 16
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.Lshuf_rol16:
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.byte 2,3,0,1,6,7,4,5,10,11,8,9,14,15,12,13
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.Lshuf_rol8:
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.byte 3,0,1,2,7,4,5,6,11,8,9,10,15,12,13,14
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.Lcounter1:
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.long 1,0,0,0
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.Linc_counter:
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.long 0,1,2,3
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.Lunsigned_cmp:
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.long 0x80000000,0x80000000,0x80000000,0x80000000
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.text
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.align 16
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.globl _gcry_chacha20_amd64_ssse3_blocks4
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ELF(.type _gcry_chacha20_amd64_ssse3_blocks4,@function;)
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_gcry_chacha20_amd64_ssse3_blocks4:
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/* input:
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* %rdi: input
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* %rsi: dst
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* %rdx: src
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* %rcx: nblks (multiple of 4)
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*/
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CFI_STARTPROC();
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pushq %rbp;
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CFI_PUSH(%rbp);
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movq %rsp, %rbp;
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CFI_DEF_CFA_REGISTER(%rbp);
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subq $STACK_MAX, %rsp;
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andq $~15, %rsp;
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.Loop4:
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mov $20, ROUND;
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/* Construct counter vectors X12 and X13 */
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movdqa .Linc_counter rRIP, X0;
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movdqa .Lunsigned_cmp rRIP, X2;
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pbroadcastd((12 * 4)(INPUT), X12);
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pbroadcastd((13 * 4)(INPUT), X13);
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paddd X0, X12;
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movdqa X12, X1;
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pxor X2, X0;
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pxor X2, X1;
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pcmpgtd X1, X0;
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psubd X0, X13;
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movdqa X12, (STACK_VEC_X12)(%rsp);
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movdqa X13, (STACK_VEC_X13)(%rsp);
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/* Load vectors */
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pbroadcastd((0 * 4)(INPUT), X0);
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pbroadcastd((1 * 4)(INPUT), X1);
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pbroadcastd((2 * 4)(INPUT), X2);
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pbroadcastd((3 * 4)(INPUT), X3);
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pbroadcastd((4 * 4)(INPUT), X4);
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pbroadcastd((5 * 4)(INPUT), X5);
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pbroadcastd((6 * 4)(INPUT), X6);
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pbroadcastd((7 * 4)(INPUT), X7);
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pbroadcastd((8 * 4)(INPUT), X8);
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pbroadcastd((9 * 4)(INPUT), X9);
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pbroadcastd((10 * 4)(INPUT), X10);
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pbroadcastd((11 * 4)(INPUT), X11);
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pbroadcastd((14 * 4)(INPUT), X14);
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pbroadcastd((15 * 4)(INPUT), X15);
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movdqa X11, (STACK_TMP)(%rsp);
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movdqa X15, (STACK_TMP1)(%rsp);
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.Lround2_4:
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QUARTERROUND2(X0, X4, X8, X12, X1, X5, X9, X13, tmp:=,X11,X15,,)
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movdqa (STACK_TMP)(%rsp), X11;
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movdqa (STACK_TMP1)(%rsp), X15;
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movdqa X8, (STACK_TMP)(%rsp);
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movdqa X9, (STACK_TMP1)(%rsp);
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QUARTERROUND2(X2, X6, X10, X14, X3, X7, X11, X15, tmp:=,X8,X9,,)
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QUARTERROUND2(X0, X5, X10, X15, X1, X6, X11, X12, tmp:=,X8,X9,,)
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movdqa (STACK_TMP)(%rsp), X8;
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movdqa (STACK_TMP1)(%rsp), X9;
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movdqa X11, (STACK_TMP)(%rsp);
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movdqa X15, (STACK_TMP1)(%rsp);
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QUARTERROUND2(X2, X7, X8, X13, X3, X4, X9, X14, tmp:=,X11,X15,,)
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sub $2, ROUND;
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jnz .Lround2_4;
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/* tmp := X15 */
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movdqa (STACK_TMP)(%rsp), X11;
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pbroadcastd((0 * 4)(INPUT), X15);
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PLUS(X0, X15);
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pbroadcastd((1 * 4)(INPUT), X15);
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PLUS(X1, X15);
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pbroadcastd((2 * 4)(INPUT), X15);
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PLUS(X2, X15);
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pbroadcastd((3 * 4)(INPUT), X15);
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PLUS(X3, X15);
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pbroadcastd((4 * 4)(INPUT), X15);
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PLUS(X4, X15);
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pbroadcastd((5 * 4)(INPUT), X15);
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PLUS(X5, X15);
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pbroadcastd((6 * 4)(INPUT), X15);
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PLUS(X6, X15);
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pbroadcastd((7 * 4)(INPUT), X15);
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PLUS(X7, X15);
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pbroadcastd((8 * 4)(INPUT), X15);
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PLUS(X8, X15);
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pbroadcastd((9 * 4)(INPUT), X15);
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PLUS(X9, X15);
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pbroadcastd((10 * 4)(INPUT), X15);
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PLUS(X10, X15);
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pbroadcastd((11 * 4)(INPUT), X15);
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PLUS(X11, X15);
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movdqa (STACK_VEC_X12)(%rsp), X15;
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PLUS(X12, X15);
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movdqa (STACK_VEC_X13)(%rsp), X15;
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PLUS(X13, X15);
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movdqa X13, (STACK_TMP)(%rsp);
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pbroadcastd((14 * 4)(INPUT), X15);
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PLUS(X14, X15);
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movdqa (STACK_TMP1)(%rsp), X15;
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movdqa X14, (STACK_TMP1)(%rsp);
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pbroadcastd((15 * 4)(INPUT), X13);
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PLUS(X15, X13);
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movdqa X15, (STACK_TMP2)(%rsp);
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/* Update counter */
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addq $4, (12 * 4)(INPUT);
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transpose_4x4(X0, X1, X2, X3, X13, X14, X15);
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xor_src_dst(DST, SRC, (64 * 0 + 16 * 0), X0, X15);
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xor_src_dst(DST, SRC, (64 * 1 + 16 * 0), X1, X15);
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xor_src_dst(DST, SRC, (64 * 2 + 16 * 0), X2, X15);
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xor_src_dst(DST, SRC, (64 * 3 + 16 * 0), X3, X15);
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transpose_4x4(X4, X5, X6, X7, X0, X1, X2);
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movdqa (STACK_TMP)(%rsp), X13;
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movdqa (STACK_TMP1)(%rsp), X14;
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movdqa (STACK_TMP2)(%rsp), X15;
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xor_src_dst(DST, SRC, (64 * 0 + 16 * 1), X4, X0);
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xor_src_dst(DST, SRC, (64 * 1 + 16 * 1), X5, X0);
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xor_src_dst(DST, SRC, (64 * 2 + 16 * 1), X6, X0);
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xor_src_dst(DST, SRC, (64 * 3 + 16 * 1), X7, X0);
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transpose_4x4(X8, X9, X10, X11, X0, X1, X2);
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xor_src_dst(DST, SRC, (64 * 0 + 16 * 2), X8, X0);
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xor_src_dst(DST, SRC, (64 * 1 + 16 * 2), X9, X0);
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xor_src_dst(DST, SRC, (64 * 2 + 16 * 2), X10, X0);
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xor_src_dst(DST, SRC, (64 * 3 + 16 * 2), X11, X0);
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transpose_4x4(X12, X13, X14, X15, X0, X1, X2);
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xor_src_dst(DST, SRC, (64 * 0 + 16 * 3), X12, X0);
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xor_src_dst(DST, SRC, (64 * 1 + 16 * 3), X13, X0);
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xor_src_dst(DST, SRC, (64 * 2 + 16 * 3), X14, X0);
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xor_src_dst(DST, SRC, (64 * 3 + 16 * 3), X15, X0);
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sub $4, NBLKS;
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lea (4 * 64)(DST), DST;
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lea (4 * 64)(SRC), SRC;
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jnz .Loop4;
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/* clear the used vector registers and stack */
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clear(X0);
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movdqa X0, (STACK_VEC_X12)(%rsp);
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movdqa X0, (STACK_VEC_X13)(%rsp);
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movdqa X0, (STACK_TMP)(%rsp);
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movdqa X0, (STACK_TMP1)(%rsp);
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movdqa X0, (STACK_TMP2)(%rsp);
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clear(X1);
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clear(X2);
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clear(X3);
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clear(X4);
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clear(X5);
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clear(X6);
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clear(X7);
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clear(X8);
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clear(X9);
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clear(X10);
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clear(X11);
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clear(X12);
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clear(X13);
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clear(X14);
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clear(X15);
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/* eax zeroed by round loop. */
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leave;
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CFI_LEAVE();
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ret_spec_stop;
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CFI_ENDPROC();
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ELF(.size _gcry_chacha20_amd64_ssse3_blocks4,
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.-_gcry_chacha20_amd64_ssse3_blocks4;)
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/**********************************************************************
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2-way && 1-way chacha20
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**********************************************************************/
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#define ROTATE_SHUF(v1,shuf) \
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pshufb shuf, v1;
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#define ROTATE(v1,c,tmp1) \
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movdqa v1, tmp1; \
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psrld $(32 - (c)), v1; \
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pslld $(c), tmp1; \
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paddb tmp1, v1;
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#define WORD_SHUF(v1,shuf) \
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pshufd $shuf, v1, v1;
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#define QUARTERROUND4(x0,x1,x2,x3,shuf_rol8,shuf_rol16,tmp1,shuf_x1,\
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shuf_x2,shuf_x3) \
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PLUS(x0, x1); XOR(x3, x0); ROTATE_SHUF(x3, shuf_rol16); \
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PLUS(x2, x3); XOR(x1, x2); ROTATE(x1, 12, tmp1); \
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PLUS(x0, x1); XOR(x3, x0); ROTATE_SHUF(x3, shuf_rol8); \
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PLUS(x2, x3); \
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WORD_SHUF(x3, shuf_x3); \
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XOR(x1, x2); \
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WORD_SHUF(x2, shuf_x2); \
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ROTATE(x1, 7, tmp1); \
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WORD_SHUF(x1, shuf_x1);
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.align 16
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.globl _gcry_chacha20_amd64_ssse3_blocks1
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ELF(.type _gcry_chacha20_amd64_ssse3_blocks1,@function;)
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_gcry_chacha20_amd64_ssse3_blocks1:
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/* input:
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* %rdi: input
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* %rsi: dst
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* %rdx: src
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* %rcx: nblks
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*/
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CFI_STARTPROC();
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/* Load constants */
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movdqa .Lcounter1 rRIP, X4;
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movdqa .Lshuf_rol8 rRIP, X5;
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movdqa .Lshuf_rol16 rRIP, X6;
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/* Load state */
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movdqu (0 * 4)(INPUT), X10;
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movdqu (4 * 4)(INPUT), X11;
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movdqu (8 * 4)(INPUT), X12;
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movdqu (12 * 4)(INPUT), X13;
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cmp $2, NBLKS;
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jb .Loop1;
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mov $20, ROUND;
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movdqa X10, X0;
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movdqa X11, X1;
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movdqa X12, X2;
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movdqa X13, X3;
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movdqa X10, X8;
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movdqa X11, X9;
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movdqa X12, X14;
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movdqa X13, X15;
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paddq X4, X15;
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.Lround2_2:
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QUARTERROUND4(X0, X1, X2, X3, X5, X6, X7, 0x39, 0x4e, 0x93);
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QUARTERROUND4(X8, X9, X14, X15, X5, X6, X7, 0x39, 0x4e, 0x93);
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QUARTERROUND4(X0, X1, X2, X3, X5, X6, X7, 0x93, 0x4e, 0x39);
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QUARTERROUND4(X8, X9, X14, X15, X5, X6, X7, 0x93, 0x4e, 0x39);
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sub $2, ROUND;
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jnz .Lround2_2;
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PLUS(X0, X10);
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PLUS(X1, X11);
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PLUS(X2, X12);
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PLUS(X3, X13);
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|
/* Update counter */
|
|
paddq X4, X13;
|
|
|
|
PLUS(X8, X10);
|
|
PLUS(X9, X11);
|
|
PLUS(X14, X12);
|
|
PLUS(X15, X13);
|
|
|
|
/* Update counter */
|
|
paddq X4, X13;
|
|
|
|
xor_src_dst(DST, SRC, 0 * 4, X0, X7);
|
|
xor_src_dst(DST, SRC, 4 * 4, X1, X7);
|
|
xor_src_dst(DST, SRC, 8 * 4, X2, X7);
|
|
xor_src_dst(DST, SRC, 12 * 4, X3, X7);
|
|
xor_src_dst(DST, SRC, 16 * 4, X8, X7);
|
|
xor_src_dst(DST, SRC, 20 * 4, X9, X7);
|
|
xor_src_dst(DST, SRC, 24 * 4, X14, X7);
|
|
xor_src_dst(DST, SRC, 28 * 4, X15, X7);
|
|
|
|
lea (2 * 64)(DST), DST;
|
|
lea (2 * 64)(SRC), SRC;
|
|
|
|
clear(X8);
|
|
clear(X9);
|
|
clear(X14);
|
|
clear(X15);
|
|
|
|
sub $2, NBLKS;
|
|
jz .Ldone1;
|
|
|
|
.Loop1:
|
|
mov $20, ROUND;
|
|
|
|
movdqa X10, X0;
|
|
movdqa X11, X1;
|
|
movdqa X12, X2;
|
|
movdqa X13, X3;
|
|
|
|
.Lround2_1:
|
|
QUARTERROUND4(X0, X1, X2, X3, X5, X6, X7, 0x39, 0x4e, 0x93);
|
|
QUARTERROUND4(X0, X1, X2, X3, X5, X6, X7, 0x93, 0x4e, 0x39);
|
|
sub $2, ROUND;
|
|
jnz .Lround2_1;
|
|
|
|
PLUS(X0, X10);
|
|
PLUS(X1, X11);
|
|
PLUS(X2, X12);
|
|
PLUS(X3, X13);
|
|
|
|
/* Update counter */
|
|
paddq X4, X13;
|
|
|
|
xor_src_dst(DST, SRC, 0 * 4, X0, X7);
|
|
xor_src_dst(DST, SRC, 4 * 4, X1, X7);
|
|
xor_src_dst(DST, SRC, 8 * 4, X2, X7);
|
|
xor_src_dst(DST, SRC, 12 * 4, X3, X7);
|
|
|
|
lea (64)(DST), DST;
|
|
lea (64)(SRC), SRC;
|
|
|
|
sub $1, NBLKS;
|
|
jnz .Loop1;
|
|
|
|
.Ldone1:
|
|
/* Store counter */
|
|
movdqu X13, (12 * 4)(INPUT);
|
|
|
|
/* clear the used vector registers */
|
|
clear(X0);
|
|
clear(X1);
|
|
clear(X2);
|
|
clear(X3);
|
|
clear(X4);
|
|
clear(X5);
|
|
clear(X6);
|
|
clear(X7);
|
|
clear(X10);
|
|
clear(X11);
|
|
clear(X12);
|
|
clear(X13);
|
|
|
|
/* eax zeroed by round loop. */
|
|
ret_spec_stop;
|
|
CFI_ENDPROC();
|
|
ELF(.size _gcry_chacha20_amd64_ssse3_blocks1,
|
|
.-_gcry_chacha20_amd64_ssse3_blocks1;)
|
|
|
|
/**********************************************************************
|
|
4-way stitched chacha20-poly1305
|
|
**********************************************************************/
|
|
|
|
#define _ /*_*/
|
|
|
|
.align 16
|
|
.globl _gcry_chacha20_poly1305_amd64_ssse3_blocks4
|
|
ELF(.type _gcry_chacha20_poly1305_amd64_ssse3_blocks4,@function;)
|
|
|
|
_gcry_chacha20_poly1305_amd64_ssse3_blocks4:
|
|
/* input:
|
|
* %rdi: input
|
|
* %rsi: dst
|
|
* %rdx: src
|
|
* %rcx: nblks (multiple of 4)
|
|
* %r9: poly1305-state
|
|
* %r8: poly1305-src
|
|
*/
|
|
CFI_STARTPROC();
|
|
|
|
pushq %rbp;
|
|
CFI_PUSH(%rbp);
|
|
movq %rsp, %rbp;
|
|
CFI_DEF_CFA_REGISTER(%rbp);
|
|
|
|
subq $(9 * 8) + STACK_MAX + 16, %rsp;
|
|
andq $~15, %rsp;
|
|
|
|
movq %rbx, (STACK_MAX + 0 * 8)(%rsp);
|
|
movq %r12, (STACK_MAX + 1 * 8)(%rsp);
|
|
movq %r13, (STACK_MAX + 2 * 8)(%rsp);
|
|
movq %r14, (STACK_MAX + 3 * 8)(%rsp);
|
|
movq %r15, (STACK_MAX + 4 * 8)(%rsp);
|
|
CFI_REG_ON_STACK(rbx, STACK_MAX + 0 * 8);
|
|
CFI_REG_ON_STACK(r12, STACK_MAX + 1 * 8);
|
|
CFI_REG_ON_STACK(r13, STACK_MAX + 2 * 8);
|
|
CFI_REG_ON_STACK(r14, STACK_MAX + 3 * 8);
|
|
CFI_REG_ON_STACK(r15, STACK_MAX + 4 * 8);
|
|
|
|
movq %rdx, (STACK_MAX + 5 * 8)(%rsp); # SRC
|
|
movq %rsi, (STACK_MAX + 6 * 8)(%rsp); # DST
|
|
movq %rcx, (STACK_MAX + 7 * 8)(%rsp); # NBLKS
|
|
|
|
/* Load state */
|
|
POLY1305_LOAD_STATE();
|
|
|
|
.Loop_poly4:
|
|
|
|
/* Construct counter vectors X12 and X13 */
|
|
movdqa .Linc_counter rRIP, X0;
|
|
movdqa .Lunsigned_cmp rRIP, X2;
|
|
pbroadcastd((12 * 4)(INPUT), X12);
|
|
pbroadcastd((13 * 4)(INPUT), X13);
|
|
paddd X0, X12;
|
|
movdqa X12, X1;
|
|
pxor X2, X0;
|
|
pxor X2, X1;
|
|
pcmpgtd X1, X0;
|
|
psubd X0, X13;
|
|
movdqa X12, (STACK_VEC_X12)(%rsp);
|
|
movdqa X13, (STACK_VEC_X13)(%rsp);
|
|
|
|
/* Load vectors */
|
|
pbroadcastd((0 * 4)(INPUT), X0);
|
|
pbroadcastd((1 * 4)(INPUT), X1);
|
|
pbroadcastd((2 * 4)(INPUT), X2);
|
|
pbroadcastd((3 * 4)(INPUT), X3);
|
|
pbroadcastd((4 * 4)(INPUT), X4);
|
|
pbroadcastd((5 * 4)(INPUT), X5);
|
|
pbroadcastd((6 * 4)(INPUT), X6);
|
|
pbroadcastd((7 * 4)(INPUT), X7);
|
|
pbroadcastd((8 * 4)(INPUT), X8);
|
|
pbroadcastd((9 * 4)(INPUT), X9);
|
|
pbroadcastd((10 * 4)(INPUT), X10);
|
|
pbroadcastd((11 * 4)(INPUT), X11);
|
|
pbroadcastd((14 * 4)(INPUT), X14);
|
|
pbroadcastd((15 * 4)(INPUT), X15);
|
|
movdqa X11, (STACK_TMP)(%rsp);
|
|
movdqa X15, (STACK_TMP1)(%rsp);
|
|
|
|
/* Process four ChaCha20 blocks and sixteen Poly1305 blocks. */
|
|
|
|
movl $20, (STACK_MAX + 8 * 8 + 4)(%rsp);
|
|
.Lround4_with_poly1305_outer:
|
|
movl $6, (STACK_MAX + 8 * 8)(%rsp);
|
|
.Lround4_with_poly1305_inner1:
|
|
/* rounds 0-5 & 10-15 */
|
|
POLY1305_BLOCK_PART1(0 * 16)
|
|
QUARTERROUND2(X0, X4, X8, X12, X1, X5, X9, X13, tmp:=,X11,X15,
|
|
POLY1305_BLOCK_PART2(),
|
|
POLY1305_BLOCK_PART3())
|
|
movdqa (STACK_TMP)(%rsp), X11;
|
|
movdqa (STACK_TMP1)(%rsp), X15;
|
|
movdqa X8, (STACK_TMP)(%rsp);
|
|
movdqa X9, (STACK_TMP1)(%rsp);
|
|
QUARTERROUND2(X2, X6, X10, X14, X3, X7, X11, X15, tmp:=,X8,X9,
|
|
POLY1305_BLOCK_PART4(),
|
|
POLY1305_BLOCK_PART5())
|
|
POLY1305_BLOCK_PART1(1 * 16)
|
|
lea (2 * 16)(POLY_RSRC), POLY_RSRC;
|
|
QUARTERROUND2(X0, X5, X10, X15, X1, X6, X11, X12, tmp:=,X8,X9,
|
|
POLY1305_BLOCK_PART2(),
|
|
POLY1305_BLOCK_PART3())
|
|
movdqa (STACK_TMP)(%rsp), X8;
|
|
movdqa (STACK_TMP1)(%rsp), X9;
|
|
movdqa X11, (STACK_TMP)(%rsp);
|
|
movdqa X15, (STACK_TMP1)(%rsp);
|
|
QUARTERROUND2(X2, X7, X8, X13, X3, X4, X9, X14, tmp:=,X11,X15,
|
|
POLY1305_BLOCK_PART4(),
|
|
POLY1305_BLOCK_PART5())
|
|
|
|
subl $2, (STACK_MAX + 8 * 8)(%rsp);
|
|
jnz .Lround4_with_poly1305_inner1;
|
|
|
|
movl $4, (STACK_MAX + 8 * 8)(%rsp);
|
|
.Lround4_with_poly1305_inner2:
|
|
/* rounds 6-9 & 16-19 */
|
|
POLY1305_BLOCK_PART1(0 * 16)
|
|
lea (1 * 16)(POLY_RSRC), POLY_RSRC;
|
|
QUARTERROUND2(X0, X4, X8, X12, X1, X5, X9, X13, tmp:=,X11,X15,
|
|
POLY1305_BLOCK_PART2(),
|
|
_)
|
|
movdqa (STACK_TMP)(%rsp), X11;
|
|
movdqa (STACK_TMP1)(%rsp), X15;
|
|
movdqa X8, (STACK_TMP)(%rsp);
|
|
movdqa X9, (STACK_TMP1)(%rsp);
|
|
QUARTERROUND2(X2, X6, X10, X14, X3, X7, X11, X15, tmp:=,X8,X9,
|
|
POLY1305_BLOCK_PART3(),
|
|
_)
|
|
QUARTERROUND2(X0, X5, X10, X15, X1, X6, X11, X12, tmp:=,X8,X9,
|
|
POLY1305_BLOCK_PART4(),
|
|
_)
|
|
movdqa (STACK_TMP)(%rsp), X8;
|
|
movdqa (STACK_TMP1)(%rsp), X9;
|
|
movdqa X11, (STACK_TMP)(%rsp);
|
|
movdqa X15, (STACK_TMP1)(%rsp);
|
|
QUARTERROUND2(X2, X7, X8, X13, X3, X4, X9, X14, tmp:=,X11,X15,
|
|
POLY1305_BLOCK_PART5(),
|
|
_)
|
|
|
|
subl $2, (STACK_MAX + 8 * 8)(%rsp);
|
|
jnz .Lround4_with_poly1305_inner2;
|
|
|
|
subl $10, (STACK_MAX + 8 * 8 + 4)(%rsp);
|
|
jnz .Lround4_with_poly1305_outer;
|
|
|
|
/* tmp := X15 */
|
|
movdqa (STACK_TMP)(%rsp), X11;
|
|
pbroadcastd((0 * 4)(INPUT), X15);
|
|
PLUS(X0, X15);
|
|
pbroadcastd((1 * 4)(INPUT), X15);
|
|
PLUS(X1, X15);
|
|
pbroadcastd((2 * 4)(INPUT), X15);
|
|
PLUS(X2, X15);
|
|
pbroadcastd((3 * 4)(INPUT), X15);
|
|
PLUS(X3, X15);
|
|
pbroadcastd((4 * 4)(INPUT), X15);
|
|
PLUS(X4, X15);
|
|
pbroadcastd((5 * 4)(INPUT), X15);
|
|
PLUS(X5, X15);
|
|
pbroadcastd((6 * 4)(INPUT), X15);
|
|
PLUS(X6, X15);
|
|
pbroadcastd((7 * 4)(INPUT), X15);
|
|
PLUS(X7, X15);
|
|
pbroadcastd((8 * 4)(INPUT), X15);
|
|
PLUS(X8, X15);
|
|
pbroadcastd((9 * 4)(INPUT), X15);
|
|
PLUS(X9, X15);
|
|
pbroadcastd((10 * 4)(INPUT), X15);
|
|
PLUS(X10, X15);
|
|
pbroadcastd((11 * 4)(INPUT), X15);
|
|
PLUS(X11, X15);
|
|
movdqa (STACK_VEC_X12)(%rsp), X15;
|
|
PLUS(X12, X15);
|
|
movdqa (STACK_VEC_X13)(%rsp), X15;
|
|
PLUS(X13, X15);
|
|
movdqa X13, (STACK_TMP)(%rsp);
|
|
pbroadcastd((14 * 4)(INPUT), X15);
|
|
PLUS(X14, X15);
|
|
movdqa (STACK_TMP1)(%rsp), X15;
|
|
movdqa X14, (STACK_TMP1)(%rsp);
|
|
pbroadcastd((15 * 4)(INPUT), X13);
|
|
PLUS(X15, X13);
|
|
movdqa X15, (STACK_TMP2)(%rsp);
|
|
|
|
/* Update counter */
|
|
addq $4, (12 * 4)(INPUT);
|
|
|
|
movq (STACK_MAX + 5 * 8)(%rsp), SRC;
|
|
movq (STACK_MAX + 6 * 8)(%rsp), DST;
|
|
|
|
transpose_4x4(X0, X1, X2, X3, X13, X14, X15);
|
|
xor_src_dst(DST, SRC, (64 * 0 + 16 * 0), X0, X15);
|
|
xor_src_dst(DST, SRC, (64 * 1 + 16 * 0), X1, X15);
|
|
xor_src_dst(DST, SRC, (64 * 2 + 16 * 0), X2, X15);
|
|
xor_src_dst(DST, SRC, (64 * 3 + 16 * 0), X3, X15);
|
|
transpose_4x4(X4, X5, X6, X7, X0, X1, X2);
|
|
movdqa (STACK_TMP)(%rsp), X13;
|
|
movdqa (STACK_TMP1)(%rsp), X14;
|
|
movdqa (STACK_TMP2)(%rsp), X15;
|
|
xor_src_dst(DST, SRC, (64 * 0 + 16 * 1), X4, X0);
|
|
xor_src_dst(DST, SRC, (64 * 1 + 16 * 1), X5, X0);
|
|
xor_src_dst(DST, SRC, (64 * 2 + 16 * 1), X6, X0);
|
|
xor_src_dst(DST, SRC, (64 * 3 + 16 * 1), X7, X0);
|
|
transpose_4x4(X8, X9, X10, X11, X0, X1, X2);
|
|
xor_src_dst(DST, SRC, (64 * 0 + 16 * 2), X8, X0);
|
|
xor_src_dst(DST, SRC, (64 * 1 + 16 * 2), X9, X0);
|
|
xor_src_dst(DST, SRC, (64 * 2 + 16 * 2), X10, X0);
|
|
xor_src_dst(DST, SRC, (64 * 3 + 16 * 2), X11, X0);
|
|
transpose_4x4(X12, X13, X14, X15, X0, X1, X2);
|
|
xor_src_dst(DST, SRC, (64 * 0 + 16 * 3), X12, X0);
|
|
xor_src_dst(DST, SRC, (64 * 1 + 16 * 3), X13, X0);
|
|
xor_src_dst(DST, SRC, (64 * 2 + 16 * 3), X14, X0);
|
|
xor_src_dst(DST, SRC, (64 * 3 + 16 * 3), X15, X0);
|
|
|
|
subq $4, (STACK_MAX + 7 * 8)(%rsp); # NBLKS
|
|
|
|
lea (4 * 64)(DST), DST;
|
|
lea (4 * 64)(SRC), SRC;
|
|
movq SRC, (STACK_MAX + 5 * 8)(%rsp);
|
|
movq DST, (STACK_MAX + 6 * 8)(%rsp);
|
|
|
|
jnz .Loop_poly4;
|
|
|
|
/* Store state */
|
|
POLY1305_STORE_STATE();
|
|
|
|
/* clear the used vector registers and stack */
|
|
clear(X0);
|
|
movdqa X0, (STACK_VEC_X12)(%rsp);
|
|
movdqa X0, (STACK_VEC_X13)(%rsp);
|
|
movdqa X0, (STACK_TMP)(%rsp);
|
|
movdqa X0, (STACK_TMP1)(%rsp);
|
|
movdqa X0, (STACK_TMP2)(%rsp);
|
|
clear(X1);
|
|
clear(X2);
|
|
clear(X3);
|
|
clear(X4);
|
|
clear(X5);
|
|
clear(X6);
|
|
clear(X7);
|
|
clear(X8);
|
|
clear(X9);
|
|
clear(X10);
|
|
clear(X11);
|
|
clear(X12);
|
|
clear(X13);
|
|
clear(X14);
|
|
clear(X15);
|
|
|
|
movq (STACK_MAX + 0 * 8)(%rsp), %rbx;
|
|
movq (STACK_MAX + 1 * 8)(%rsp), %r12;
|
|
movq (STACK_MAX + 2 * 8)(%rsp), %r13;
|
|
movq (STACK_MAX + 3 * 8)(%rsp), %r14;
|
|
movq (STACK_MAX + 4 * 8)(%rsp), %r15;
|
|
CFI_RESTORE(%rbx);
|
|
CFI_RESTORE(%r12);
|
|
CFI_RESTORE(%r13);
|
|
CFI_RESTORE(%r14);
|
|
CFI_RESTORE(%r15);
|
|
|
|
xorl %eax, %eax;
|
|
leave;
|
|
CFI_LEAVE();
|
|
ret_spec_stop;
|
|
CFI_ENDPROC();
|
|
ELF(.size _gcry_chacha20_poly1305_amd64_ssse3_blocks4,
|
|
.-_gcry_chacha20_poly1305_amd64_ssse3_blocks4;)
|
|
|
|
/**********************************************************************
|
|
2-way && 1-way stitched chacha20-poly1305
|
|
**********************************************************************/
|
|
|
|
.align 16
|
|
.globl _gcry_chacha20_poly1305_amd64_ssse3_blocks1
|
|
ELF(.type _gcry_chacha20_poly1305_amd64_ssse3_blocks1,@function;)
|
|
|
|
_gcry_chacha20_poly1305_amd64_ssse3_blocks1:
|
|
/* input:
|
|
* %rdi: chacha20-state
|
|
* %rsi: dst
|
|
* %rdx: src
|
|
* %rcx: nblks
|
|
* %r9: poly1305-state
|
|
* %r8: poly1305-src
|
|
*/
|
|
CFI_STARTPROC();
|
|
|
|
pushq %rbp;
|
|
CFI_PUSH(%rbp);
|
|
movq %rsp, %rbp;
|
|
CFI_DEF_CFA_REGISTER(%rbp);
|
|
|
|
subq $(9 * 8), %rsp;
|
|
movq %rbx, (0 * 8)(%rsp);
|
|
movq %r12, (1 * 8)(%rsp);
|
|
movq %r13, (2 * 8)(%rsp);
|
|
movq %r14, (3 * 8)(%rsp);
|
|
movq %r15, (4 * 8)(%rsp);
|
|
CFI_REG_ON_STACK(rbx, 0 * 8);
|
|
CFI_REG_ON_STACK(r12, 1 * 8);
|
|
CFI_REG_ON_STACK(r13, 2 * 8);
|
|
CFI_REG_ON_STACK(r14, 3 * 8);
|
|
CFI_REG_ON_STACK(r15, 4 * 8);
|
|
|
|
movq %rdx, (5 * 8)(%rsp); # SRC
|
|
movq %rsi, (6 * 8)(%rsp); # DST
|
|
movq %rcx, (7 * 8)(%rsp); # NBLKS
|
|
|
|
/* Load constants */
|
|
movdqa .Lcounter1 rRIP, X4;
|
|
movdqa .Lshuf_rol8 rRIP, X5;
|
|
movdqa .Lshuf_rol16 rRIP, X6;
|
|
|
|
/* Load state */
|
|
movdqu (0 * 4)(INPUT), X10;
|
|
movdqu (4 * 4)(INPUT), X11;
|
|
movdqu (8 * 4)(INPUT), X12;
|
|
movdqu (12 * 4)(INPUT), X13;
|
|
|
|
POLY1305_LOAD_STATE();
|
|
|
|
cmpq $2, (7 * 8)(%rsp); #NBLKS
|
|
jb .Loop_poly1;
|
|
|
|
movdqa X10, X0;
|
|
movdqa X11, X1;
|
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movdqa X12, X2;
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movdqa X13, X3;
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|
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movdqa X10, X8;
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movdqa X11, X9;
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movdqa X12, X14;
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movdqa X13, X15;
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paddq X4, X15;
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|
|
|
/* Process two ChaCha20 blocks and eight Poly1305 blocks. */
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|
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movl $20, (8 * 8 + 4)(%rsp);
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.Lround2_with_poly1305_outer:
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movl $8, (8 * 8)(%rsp);
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.Lround2_with_poly1305_inner:
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POLY1305_BLOCK_PART1(0 * 16);
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QUARTERROUND4(X0, X1, X2, X3, X5, X6, X7, 0x39, 0x4e, 0x93);
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lea (1 * 16)(POLY_RSRC), POLY_RSRC;
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POLY1305_BLOCK_PART2();
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|
QUARTERROUND4(X8, X9, X14, X15, X5, X6, X7, 0x39, 0x4e, 0x93);
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|
POLY1305_BLOCK_PART3();
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|
QUARTERROUND4(X0, X1, X2, X3, X5, X6, X7, 0x93, 0x4e, 0x39);
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|
POLY1305_BLOCK_PART4();
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|
QUARTERROUND4(X8, X9, X14, X15, X5, X6, X7, 0x93, 0x4e, 0x39);
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|
POLY1305_BLOCK_PART5();
|
|
|
|
subl $2, (8 * 8)(%rsp);
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|
jnz .Lround2_with_poly1305_inner;
|
|
|
|
QUARTERROUND4(X0, X1, X2, X3, X5, X6, X7, 0x39, 0x4e, 0x93);
|
|
QUARTERROUND4(X8, X9, X14, X15, X5, X6, X7, 0x39, 0x4e, 0x93);
|
|
QUARTERROUND4(X0, X1, X2, X3, X5, X6, X7, 0x93, 0x4e, 0x39);
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|
QUARTERROUND4(X8, X9, X14, X15, X5, X6, X7, 0x93, 0x4e, 0x39);
|
|
|
|
subl $10, (8 * 8 + 4)(%rsp);
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|
jnz .Lround2_with_poly1305_outer;
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|
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|
movq (5 * 8)(%rsp), SRC;
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|
movq (6 * 8)(%rsp), DST;
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|
|
|
PLUS(X0, X10);
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|
PLUS(X1, X11);
|
|
PLUS(X2, X12);
|
|
PLUS(X3, X13);
|
|
|
|
/* Update counter */
|
|
paddq X4, X13;
|
|
|
|
PLUS(X8, X10);
|
|
PLUS(X9, X11);
|
|
PLUS(X14, X12);
|
|
PLUS(X15, X13);
|
|
|
|
/* Update counter */
|
|
paddq X4, X13;
|
|
|
|
xor_src_dst(DST, SRC, 0 * 4, X0, X7);
|
|
xor_src_dst(DST, SRC, 4 * 4, X1, X7);
|
|
xor_src_dst(DST, SRC, 8 * 4, X2, X7);
|
|
xor_src_dst(DST, SRC, 12 * 4, X3, X7);
|
|
xor_src_dst(DST, SRC, 16 * 4, X8, X7);
|
|
xor_src_dst(DST, SRC, 20 * 4, X9, X7);
|
|
xor_src_dst(DST, SRC, 24 * 4, X14, X7);
|
|
xor_src_dst(DST, SRC, 28 * 4, X15, X7);
|
|
|
|
clear(X8);
|
|
clear(X9);
|
|
clear(X14);
|
|
clear(X15);
|
|
|
|
subq $2, (7 * 8)(%rsp); # NBLKS
|
|
lea (2 * 64)(SRC), SRC;
|
|
lea (2 * 64)(DST), DST;
|
|
movq SRC, (5 * 8)(%rsp);
|
|
movq DST, (6 * 8)(%rsp);
|
|
jz .Ldone_poly1;
|
|
|
|
.Loop_poly1:
|
|
movdqa X10, X0;
|
|
movdqa X11, X1;
|
|
movdqa X12, X2;
|
|
movdqa X13, X3;
|
|
|
|
/* Process one ChaCha20 block and four Poly1305 blocks. */
|
|
|
|
movl $20, (8 * 8 + 4)(%rsp);
|
|
.Lround1_with_poly1305_outer:
|
|
movl $8, (8 * 8)(%rsp);
|
|
.Lround1_with_poly1305_inner:
|
|
POLY1305_BLOCK_PART1(0 * 16);
|
|
QUARTERROUND4(X0, X1, X2, X3, X5, X6, X7, 0x39, 0x4e, 0x93);
|
|
POLY1305_BLOCK_PART2();
|
|
QUARTERROUND4(X0, X1, X2, X3, X5, X6, X7, 0x93, 0x4e, 0x39);
|
|
lea (1 * 16)(POLY_RSRC), POLY_RSRC;
|
|
|
|
POLY1305_BLOCK_PART3();
|
|
QUARTERROUND4(X0, X1, X2, X3, X5, X6, X7, 0x39, 0x4e, 0x93);
|
|
POLY1305_BLOCK_PART4();
|
|
QUARTERROUND4(X0, X1, X2, X3, X5, X6, X7, 0x93, 0x4e, 0x39);
|
|
POLY1305_BLOCK_PART5();
|
|
|
|
subl $4, (8 * 8)(%rsp);
|
|
jnz .Lround1_with_poly1305_inner;
|
|
|
|
QUARTERROUND4(X0, X1, X2, X3, X5, X6, X7, 0x39, 0x4e, 0x93);
|
|
QUARTERROUND4(X0, X1, X2, X3, X5, X6, X7, 0x93, 0x4e, 0x39);
|
|
|
|
subl $10, (8 * 8 + 4)(%rsp);
|
|
jnz .Lround1_with_poly1305_outer;
|
|
|
|
movq (5 * 8)(%rsp), SRC;
|
|
movq (6 * 8)(%rsp), DST;
|
|
|
|
PLUS(X0, X10);
|
|
PLUS(X1, X11);
|
|
PLUS(X2, X12);
|
|
PLUS(X3, X13);
|
|
|
|
/* Update counter */
|
|
paddq X4, X13;
|
|
|
|
xor_src_dst(DST, SRC, 0 * 4, X0, X7);
|
|
xor_src_dst(DST, SRC, 4 * 4, X1, X7);
|
|
xor_src_dst(DST, SRC, 8 * 4, X2, X7);
|
|
xor_src_dst(DST, SRC, 12 * 4, X3, X7);
|
|
|
|
subq $1, (7 * 8)(%rsp); # NBLKS
|
|
lea (64)(SRC), SRC;
|
|
lea (64)(DST), DST;
|
|
movq SRC, (5 * 8)(%rsp);
|
|
movq DST, (6 * 8)(%rsp);
|
|
|
|
jnz .Loop_poly1;
|
|
|
|
.Ldone_poly1:
|
|
/* Store state */
|
|
POLY1305_STORE_STATE();
|
|
|
|
movdqu X13, (12 * 4)(INPUT);
|
|
|
|
/* clear the used vector registers */
|
|
clear(X0);
|
|
clear(X1);
|
|
clear(X2);
|
|
clear(X3);
|
|
clear(X4);
|
|
clear(X5);
|
|
clear(X6);
|
|
clear(X7);
|
|
clear(X10);
|
|
clear(X11);
|
|
clear(X12);
|
|
clear(X13);
|
|
|
|
movq (0 * 8)(%rsp), %rbx;
|
|
movq (1 * 8)(%rsp), %r12;
|
|
movq (2 * 8)(%rsp), %r13;
|
|
movq (3 * 8)(%rsp), %r14;
|
|
movq (4 * 8)(%rsp), %r15;
|
|
CFI_RESTORE(%rbx);
|
|
CFI_RESTORE(%r12);
|
|
CFI_RESTORE(%r13);
|
|
CFI_RESTORE(%r14);
|
|
CFI_RESTORE(%r15);
|
|
|
|
xorl %eax, %eax;
|
|
leave;
|
|
CFI_LEAVE();
|
|
ret_spec_stop;
|
|
CFI_ENDPROC();
|
|
ELF(.size _gcry_chacha20_poly1305_amd64_ssse3_blocks1,
|
|
.-_gcry_chacha20_poly1305_amd64_ssse3_blocks1;)
|
|
|
|
#endif /*defined(HAVE_COMPATIBLE_GCC_AMD64_PLATFORM_AS)*/
|
|
#endif /*__x86_64*/
|