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Gorochu
2026-05-26 23:36:42 -07:00
parent ba051b2f74
commit 555ec72358
41615 changed files with 13344630 additions and 1 deletions

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#include "arm_arch.h"
.text
.arch armv8-a+crypto
.align 5
.globl _armv7_neon_probe
.type _armv7_neon_probe,%function
_armv7_neon_probe:
orr v15.16b, v15.16b, v15.16b
ret
.size _armv7_neon_probe,.-_armv7_neon_probe
.globl _armv7_tick
.type _armv7_tick,%function
_armv7_tick:
#ifdef __APPLE__
mrs x0, CNTPCT_EL0
#else
mrs x0, CNTVCT_EL0
#endif
ret
.size _armv7_tick,.-_armv7_tick
.globl _armv8_aes_probe
.type _armv8_aes_probe,%function
_armv8_aes_probe:
aese v0.16b, v0.16b
ret
.size _armv8_aes_probe,.-_armv8_aes_probe
.globl _armv8_sha1_probe
.type _armv8_sha1_probe,%function
_armv8_sha1_probe:
sha1h s0, s0
ret
.size _armv8_sha1_probe,.-_armv8_sha1_probe
.globl _armv8_sha256_probe
.type _armv8_sha256_probe,%function
_armv8_sha256_probe:
sha256su0 v0.4s, v0.4s
ret
.size _armv8_sha256_probe,.-_armv8_sha256_probe
.globl _armv8_pmull_probe
.type _armv8_pmull_probe,%function
_armv8_pmull_probe:
pmull v0.1q, v0.1d, v0.1d
ret
.size _armv8_pmull_probe,.-_armv8_pmull_probe
.globl _armv8_sha512_probe
.type _armv8_sha512_probe,%function
_armv8_sha512_probe:
.long 0xcec08000 // sha512su0 v0.2d,v0.2d
ret
.size _armv8_sha512_probe,.-_armv8_sha512_probe
.globl _armv8_cpuid_probe
.type _armv8_cpuid_probe,%function
_armv8_cpuid_probe:
mrs x0, midr_el1
ret
.size _armv8_cpuid_probe,.-_armv8_cpuid_probe
.globl OPENSSL_cleanse
.type OPENSSL_cleanse,%function
.align 5
OPENSSL_cleanse:
cbz x1,.Lret // len==0?
cmp x1,#15
b.hi .Lot // len>15
nop
.Little:
strb wzr,[x0],#1 // store byte-by-byte
subs x1,x1,#1
b.ne .Little
.Lret: ret
.align 4
.Lot: tst x0,#7
b.eq .Laligned // inp is aligned
strb wzr,[x0],#1 // store byte-by-byte
sub x1,x1,#1
b .Lot
.align 4
.Laligned:
str xzr,[x0],#8 // store word-by-word
sub x1,x1,#8
tst x1,#-8
b.ne .Laligned // len>=8
cbnz x1,.Little // len!=0?
ret
.size OPENSSL_cleanse,.-OPENSSL_cleanse
.globl CRYPTO_memcmp
.type CRYPTO_memcmp,%function
.align 4
CRYPTO_memcmp:
eor w3,w3,w3
cbz x2,.Lno_data // len==0?
cmp x2,#16
b.ne .Loop_cmp
ldp x8,x9,[x0]
ldp x10,x11,[x1]
eor x8,x8,x10
eor x9,x9,x11
orr x8,x8,x9
mov x0,#1
cmp x8,#0
csel x0,xzr,x0,eq
ret
.align 4
.Loop_cmp:
ldrb w4,[x0],#1
ldrb w5,[x1],#1
eor w4,w4,w5
orr w3,w3,w4
subs x2,x2,#1
b.ne .Loop_cmp
.Lno_data:
neg w0,w3
lsr w0,w0,#31
ret
.size CRYPTO_memcmp,.-CRYPTO_memcmp

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/*
* WARNING: do not edit!
* Generated by util/mkbuildinf.pl
*
* Copyright 2014-2025 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
#define PLATFORM "platform: linux-aarch64"
#define DATE "built on: Wed Mar 5 21:02:14 2025 UTC"
/*
* Generate compiler_flags as an array of individual characters. This is a
* workaround for the situation where CFLAGS gets too long for a C90 string
* literal
*/
static const char compiler_flags[] = {
'c','o','m','p','i','l','e','r',':',' ','g','c','c',' ','-','f',
'P','I','C',' ','-','p','t','h','r','e','a','d',' ','-','W','a',
',','-','-','n','o','e','x','e','c','s','t','a','c','k',' ','-',
'W','a','l','l',' ','-','O','3',' ','-','D','O','P','E','N','S',
'S','L','_','U','S','E','_','N','O','D','E','L','E','T','E',' ',
'-','D','O','P','E','N','S','S','L','_','P','I','C',' ','-','D',
'O','P','E','N','S','S','L','_','B','U','I','L','D','I','N','G',
'_','O','P','E','N','S','S','L',' ','-','D','N','D','E','B','U',
'G','\0'
};

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#include "arm_arch.h"
#if __ARM_MAX_ARCH__>=7
.arch armv8-a+crypto
.text
.globl gcm_init_v8
.type gcm_init_v8,%function
.align 4
gcm_init_v8:
ld1 {v17.2d},[x1] //load input H
movi v19.16b,#0xe1
shl v19.2d,v19.2d,#57 //0xc2.0
ext v3.16b,v17.16b,v17.16b,#8
ushr v18.2d,v19.2d,#63
dup v17.4s,v17.s[1]
ext v16.16b,v18.16b,v19.16b,#8 //t0=0xc2....01
ushr v18.2d,v3.2d,#63
sshr v17.4s,v17.4s,#31 //broadcast carry bit
and v18.16b,v18.16b,v16.16b
shl v3.2d,v3.2d,#1
ext v18.16b,v18.16b,v18.16b,#8
and v16.16b,v16.16b,v17.16b
orr v3.16b,v3.16b,v18.16b //H<<<=1
eor v20.16b,v3.16b,v16.16b //twisted H
st1 {v20.2d},[x0],#16 //store Htable[0]
//calculate H^2
ext v16.16b,v20.16b,v20.16b,#8 //Karatsuba pre-processing
pmull v0.1q,v20.1d,v20.1d
eor v16.16b,v16.16b,v20.16b
pmull2 v2.1q,v20.2d,v20.2d
pmull v1.1q,v16.1d,v16.1d
ext v17.16b,v0.16b,v2.16b,#8 //Karatsuba post-processing
eor v18.16b,v0.16b,v2.16b
eor v1.16b,v1.16b,v17.16b
eor v1.16b,v1.16b,v18.16b
pmull v18.1q,v0.1d,v19.1d //1st phase
ins v2.d[0],v1.d[1]
ins v1.d[1],v0.d[0]
eor v0.16b,v1.16b,v18.16b
ext v18.16b,v0.16b,v0.16b,#8 //2nd phase
pmull v0.1q,v0.1d,v19.1d
eor v18.16b,v18.16b,v2.16b
eor v22.16b,v0.16b,v18.16b
ext v17.16b,v22.16b,v22.16b,#8 //Karatsuba pre-processing
eor v17.16b,v17.16b,v22.16b
ext v21.16b,v16.16b,v17.16b,#8 //pack Karatsuba pre-processed
st1 {v21.2d,v22.2d},[x0],#32 //store Htable[1..2]
//calculate H^3 and H^4
pmull v0.1q,v20.1d, v22.1d
pmull v5.1q,v22.1d,v22.1d
pmull2 v2.1q,v20.2d, v22.2d
pmull2 v7.1q,v22.2d,v22.2d
pmull v1.1q,v16.1d,v17.1d
pmull v6.1q,v17.1d,v17.1d
ext v16.16b,v0.16b,v2.16b,#8 //Karatsuba post-processing
ext v17.16b,v5.16b,v7.16b,#8
eor v18.16b,v0.16b,v2.16b
eor v1.16b,v1.16b,v16.16b
eor v4.16b,v5.16b,v7.16b
eor v6.16b,v6.16b,v17.16b
eor v1.16b,v1.16b,v18.16b
pmull v18.1q,v0.1d,v19.1d //1st phase
eor v6.16b,v6.16b,v4.16b
pmull v4.1q,v5.1d,v19.1d
ins v2.d[0],v1.d[1]
ins v7.d[0],v6.d[1]
ins v1.d[1],v0.d[0]
ins v6.d[1],v5.d[0]
eor v0.16b,v1.16b,v18.16b
eor v5.16b,v6.16b,v4.16b
ext v18.16b,v0.16b,v0.16b,#8 //2nd phase
ext v4.16b,v5.16b,v5.16b,#8
pmull v0.1q,v0.1d,v19.1d
pmull v5.1q,v5.1d,v19.1d
eor v18.16b,v18.16b,v2.16b
eor v4.16b,v4.16b,v7.16b
eor v20.16b, v0.16b,v18.16b //H^3
eor v22.16b,v5.16b,v4.16b //H^4
ext v16.16b,v20.16b, v20.16b,#8 //Karatsuba pre-processing
ext v17.16b,v22.16b,v22.16b,#8
eor v16.16b,v16.16b,v20.16b
eor v17.16b,v17.16b,v22.16b
ext v21.16b,v16.16b,v17.16b,#8 //pack Karatsuba pre-processed
st1 {v20.2d,v21.2d,v22.2d},[x0] //store Htable[3..5]
ret
.size gcm_init_v8,.-gcm_init_v8
.globl gcm_gmult_v8
.type gcm_gmult_v8,%function
.align 4
gcm_gmult_v8:
ld1 {v17.2d},[x0] //load Xi
movi v19.16b,#0xe1
ld1 {v20.2d,v21.2d},[x1] //load twisted H, ...
shl v19.2d,v19.2d,#57
#ifndef __AARCH64EB__
rev64 v17.16b,v17.16b
#endif
ext v3.16b,v17.16b,v17.16b,#8
pmull v0.1q,v20.1d,v3.1d //H.lo·Xi.lo
eor v17.16b,v17.16b,v3.16b //Karatsuba pre-processing
pmull2 v2.1q,v20.2d,v3.2d //H.hi·Xi.hi
pmull v1.1q,v21.1d,v17.1d //(H.lo+H.hi)·(Xi.lo+Xi.hi)
ext v17.16b,v0.16b,v2.16b,#8 //Karatsuba post-processing
eor v18.16b,v0.16b,v2.16b
eor v1.16b,v1.16b,v17.16b
eor v1.16b,v1.16b,v18.16b
pmull v18.1q,v0.1d,v19.1d //1st phase of reduction
ins v2.d[0],v1.d[1]
ins v1.d[1],v0.d[0]
eor v0.16b,v1.16b,v18.16b
ext v18.16b,v0.16b,v0.16b,#8 //2nd phase of reduction
pmull v0.1q,v0.1d,v19.1d
eor v18.16b,v18.16b,v2.16b
eor v0.16b,v0.16b,v18.16b
#ifndef __AARCH64EB__
rev64 v0.16b,v0.16b
#endif
ext v0.16b,v0.16b,v0.16b,#8
st1 {v0.2d},[x0] //write out Xi
ret
.size gcm_gmult_v8,.-gcm_gmult_v8
.globl gcm_ghash_v8
.type gcm_ghash_v8,%function
.align 4
gcm_ghash_v8:
cmp x3,#64
b.hs .Lgcm_ghash_v8_4x
ld1 {v0.2d},[x0] //load [rotated] Xi
//"[rotated]" means that
//loaded value would have
//to be rotated in order to
//make it appear as in
//algorithm specification
subs x3,x3,#32 //see if x3 is 32 or larger
mov x12,#16 //x12 is used as post-
//increment for input pointer;
//as loop is modulo-scheduled
//x12 is zeroed just in time
//to preclude overstepping
//inp[len], which means that
//last block[s] are actually
//loaded twice, but last
//copy is not processed
ld1 {v20.2d,v21.2d},[x1],#32 //load twisted H, ..., H^2
movi v19.16b,#0xe1
ld1 {v22.2d},[x1]
csel x12,xzr,x12,eq //is it time to zero x12?
ext v0.16b,v0.16b,v0.16b,#8 //rotate Xi
ld1 {v16.2d},[x2],#16 //load [rotated] I[0]
shl v19.2d,v19.2d,#57 //compose 0xc2.0 constant
#ifndef __AARCH64EB__
rev64 v16.16b,v16.16b
rev64 v0.16b,v0.16b
#endif
ext v3.16b,v16.16b,v16.16b,#8 //rotate I[0]
b.lo .Lodd_tail_v8 //x3 was less than 32
ld1 {v17.2d},[x2],x12 //load [rotated] I[1]
#ifndef __AARCH64EB__
rev64 v17.16b,v17.16b
#endif
ext v7.16b,v17.16b,v17.16b,#8
eor v3.16b,v3.16b,v0.16b //I[i]^=Xi
pmull v4.1q,v20.1d,v7.1d //H·Ii+1
eor v17.16b,v17.16b,v7.16b //Karatsuba pre-processing
pmull2 v6.1q,v20.2d,v7.2d
b .Loop_mod2x_v8
.align 4
.Loop_mod2x_v8:
ext v18.16b,v3.16b,v3.16b,#8
subs x3,x3,#32 //is there more data?
pmull v0.1q,v22.1d,v3.1d //H^2.lo·Xi.lo
csel x12,xzr,x12,lo //is it time to zero x12?
pmull v5.1q,v21.1d,v17.1d
eor v18.16b,v18.16b,v3.16b //Karatsuba pre-processing
pmull2 v2.1q,v22.2d,v3.2d //H^2.hi·Xi.hi
eor v0.16b,v0.16b,v4.16b //accumulate
pmull2 v1.1q,v21.2d,v18.2d //(H^2.lo+H^2.hi)·(Xi.lo+Xi.hi)
ld1 {v16.2d},[x2],x12 //load [rotated] I[i+2]
eor v2.16b,v2.16b,v6.16b
csel x12,xzr,x12,eq //is it time to zero x12?
eor v1.16b,v1.16b,v5.16b
ext v17.16b,v0.16b,v2.16b,#8 //Karatsuba post-processing
eor v18.16b,v0.16b,v2.16b
eor v1.16b,v1.16b,v17.16b
ld1 {v17.2d},[x2],x12 //load [rotated] I[i+3]
#ifndef __AARCH64EB__
rev64 v16.16b,v16.16b
#endif
eor v1.16b,v1.16b,v18.16b
pmull v18.1q,v0.1d,v19.1d //1st phase of reduction
#ifndef __AARCH64EB__
rev64 v17.16b,v17.16b
#endif
ins v2.d[0],v1.d[1]
ins v1.d[1],v0.d[0]
ext v7.16b,v17.16b,v17.16b,#8
ext v3.16b,v16.16b,v16.16b,#8
eor v0.16b,v1.16b,v18.16b
pmull v4.1q,v20.1d,v7.1d //H·Ii+1
eor v3.16b,v3.16b,v2.16b //accumulate v3.16b early
ext v18.16b,v0.16b,v0.16b,#8 //2nd phase of reduction
pmull v0.1q,v0.1d,v19.1d
eor v3.16b,v3.16b,v18.16b
eor v17.16b,v17.16b,v7.16b //Karatsuba pre-processing
eor v3.16b,v3.16b,v0.16b
pmull2 v6.1q,v20.2d,v7.2d
b.hs .Loop_mod2x_v8 //there was at least 32 more bytes
eor v2.16b,v2.16b,v18.16b
ext v3.16b,v16.16b,v16.16b,#8 //re-construct v3.16b
adds x3,x3,#32 //re-construct x3
eor v0.16b,v0.16b,v2.16b //re-construct v0.16b
b.eq .Ldone_v8 //is x3 zero?
.Lodd_tail_v8:
ext v18.16b,v0.16b,v0.16b,#8
eor v3.16b,v3.16b,v0.16b //inp^=Xi
eor v17.16b,v16.16b,v18.16b //v17.16b is rotated inp^Xi
pmull v0.1q,v20.1d,v3.1d //H.lo·Xi.lo
eor v17.16b,v17.16b,v3.16b //Karatsuba pre-processing
pmull2 v2.1q,v20.2d,v3.2d //H.hi·Xi.hi
pmull v1.1q,v21.1d,v17.1d //(H.lo+H.hi)·(Xi.lo+Xi.hi)
ext v17.16b,v0.16b,v2.16b,#8 //Karatsuba post-processing
eor v18.16b,v0.16b,v2.16b
eor v1.16b,v1.16b,v17.16b
eor v1.16b,v1.16b,v18.16b
pmull v18.1q,v0.1d,v19.1d //1st phase of reduction
ins v2.d[0],v1.d[1]
ins v1.d[1],v0.d[0]
eor v0.16b,v1.16b,v18.16b
ext v18.16b,v0.16b,v0.16b,#8 //2nd phase of reduction
pmull v0.1q,v0.1d,v19.1d
eor v18.16b,v18.16b,v2.16b
eor v0.16b,v0.16b,v18.16b
.Ldone_v8:
#ifndef __AARCH64EB__
rev64 v0.16b,v0.16b
#endif
ext v0.16b,v0.16b,v0.16b,#8
st1 {v0.2d},[x0] //write out Xi
ret
.size gcm_ghash_v8,.-gcm_ghash_v8
.type gcm_ghash_v8_4x,%function
.align 4
gcm_ghash_v8_4x:
.Lgcm_ghash_v8_4x:
ld1 {v0.2d},[x0] //load [rotated] Xi
ld1 {v20.2d,v21.2d,v22.2d},[x1],#48 //load twisted H, ..., H^2
movi v19.16b,#0xe1
ld1 {v26.2d,v27.2d,v28.2d},[x1] //load twisted H^3, ..., H^4
shl v19.2d,v19.2d,#57 //compose 0xc2.0 constant
ld1 {v4.2d,v5.2d,v6.2d,v7.2d},[x2],#64
#ifndef __AARCH64EB__
rev64 v0.16b,v0.16b
rev64 v5.16b,v5.16b
rev64 v6.16b,v6.16b
rev64 v7.16b,v7.16b
rev64 v4.16b,v4.16b
#endif
ext v25.16b,v7.16b,v7.16b,#8
ext v24.16b,v6.16b,v6.16b,#8
ext v23.16b,v5.16b,v5.16b,#8
pmull v29.1q,v20.1d,v25.1d //H·Ii+3
eor v7.16b,v7.16b,v25.16b
pmull2 v31.1q,v20.2d,v25.2d
pmull v30.1q,v21.1d,v7.1d
pmull v16.1q,v22.1d,v24.1d //H^2·Ii+2
eor v6.16b,v6.16b,v24.16b
pmull2 v24.1q,v22.2d,v24.2d
pmull2 v6.1q,v21.2d,v6.2d
eor v29.16b,v29.16b,v16.16b
eor v31.16b,v31.16b,v24.16b
eor v30.16b,v30.16b,v6.16b
pmull v7.1q,v26.1d,v23.1d //H^3·Ii+1
eor v5.16b,v5.16b,v23.16b
pmull2 v23.1q,v26.2d,v23.2d
pmull v5.1q,v27.1d,v5.1d
eor v29.16b,v29.16b,v7.16b
eor v31.16b,v31.16b,v23.16b
eor v30.16b,v30.16b,v5.16b
subs x3,x3,#128
b.lo .Ltail4x
b .Loop4x
.align 4
.Loop4x:
eor v16.16b,v4.16b,v0.16b
ld1 {v4.2d,v5.2d,v6.2d,v7.2d},[x2],#64
ext v3.16b,v16.16b,v16.16b,#8
#ifndef __AARCH64EB__
rev64 v5.16b,v5.16b
rev64 v6.16b,v6.16b
rev64 v7.16b,v7.16b
rev64 v4.16b,v4.16b
#endif
pmull v0.1q,v28.1d,v3.1d //H^4·(Xi+Ii)
eor v16.16b,v16.16b,v3.16b
pmull2 v2.1q,v28.2d,v3.2d
ext v25.16b,v7.16b,v7.16b,#8
pmull2 v1.1q,v27.2d,v16.2d
eor v0.16b,v0.16b,v29.16b
eor v2.16b,v2.16b,v31.16b
ext v24.16b,v6.16b,v6.16b,#8
eor v1.16b,v1.16b,v30.16b
ext v23.16b,v5.16b,v5.16b,#8
ext v17.16b,v0.16b,v2.16b,#8 //Karatsuba post-processing
eor v18.16b,v0.16b,v2.16b
pmull v29.1q,v20.1d,v25.1d //H·Ii+3
eor v7.16b,v7.16b,v25.16b
eor v1.16b,v1.16b,v17.16b
pmull2 v31.1q,v20.2d,v25.2d
eor v1.16b,v1.16b,v18.16b
pmull v30.1q,v21.1d,v7.1d
pmull v18.1q,v0.1d,v19.1d //1st phase of reduction
ins v2.d[0],v1.d[1]
ins v1.d[1],v0.d[0]
pmull v16.1q,v22.1d,v24.1d //H^2·Ii+2
eor v6.16b,v6.16b,v24.16b
pmull2 v24.1q,v22.2d,v24.2d
eor v0.16b,v1.16b,v18.16b
pmull2 v6.1q,v21.2d,v6.2d
eor v29.16b,v29.16b,v16.16b
eor v31.16b,v31.16b,v24.16b
eor v30.16b,v30.16b,v6.16b
ext v18.16b,v0.16b,v0.16b,#8 //2nd phase of reduction
pmull v0.1q,v0.1d,v19.1d
pmull v7.1q,v26.1d,v23.1d //H^3·Ii+1
eor v5.16b,v5.16b,v23.16b
eor v18.16b,v18.16b,v2.16b
pmull2 v23.1q,v26.2d,v23.2d
pmull v5.1q,v27.1d,v5.1d
eor v0.16b,v0.16b,v18.16b
eor v29.16b,v29.16b,v7.16b
eor v31.16b,v31.16b,v23.16b
ext v0.16b,v0.16b,v0.16b,#8
eor v30.16b,v30.16b,v5.16b
subs x3,x3,#64
b.hs .Loop4x
.Ltail4x:
eor v16.16b,v4.16b,v0.16b
ext v3.16b,v16.16b,v16.16b,#8
pmull v0.1q,v28.1d,v3.1d //H^4·(Xi+Ii)
eor v16.16b,v16.16b,v3.16b
pmull2 v2.1q,v28.2d,v3.2d
pmull2 v1.1q,v27.2d,v16.2d
eor v0.16b,v0.16b,v29.16b
eor v2.16b,v2.16b,v31.16b
eor v1.16b,v1.16b,v30.16b
adds x3,x3,#64
b.eq .Ldone4x
cmp x3,#32
b.lo .Lone
b.eq .Ltwo
.Lthree:
ext v17.16b,v0.16b,v2.16b,#8 //Karatsuba post-processing
eor v18.16b,v0.16b,v2.16b
eor v1.16b,v1.16b,v17.16b
ld1 {v4.2d,v5.2d,v6.2d},[x2]
eor v1.16b,v1.16b,v18.16b
#ifndef __AARCH64EB__
rev64 v5.16b,v5.16b
rev64 v6.16b,v6.16b
rev64 v4.16b,v4.16b
#endif
pmull v18.1q,v0.1d,v19.1d //1st phase of reduction
ins v2.d[0],v1.d[1]
ins v1.d[1],v0.d[0]
ext v24.16b,v6.16b,v6.16b,#8
ext v23.16b,v5.16b,v5.16b,#8
eor v0.16b,v1.16b,v18.16b
pmull v29.1q,v20.1d,v24.1d //H·Ii+2
eor v6.16b,v6.16b,v24.16b
ext v18.16b,v0.16b,v0.16b,#8 //2nd phase of reduction
pmull v0.1q,v0.1d,v19.1d
eor v18.16b,v18.16b,v2.16b
pmull2 v31.1q,v20.2d,v24.2d
pmull v30.1q,v21.1d,v6.1d
eor v0.16b,v0.16b,v18.16b
pmull v7.1q,v22.1d,v23.1d //H^2·Ii+1
eor v5.16b,v5.16b,v23.16b
ext v0.16b,v0.16b,v0.16b,#8
pmull2 v23.1q,v22.2d,v23.2d
eor v16.16b,v4.16b,v0.16b
pmull2 v5.1q,v21.2d,v5.2d
ext v3.16b,v16.16b,v16.16b,#8
eor v29.16b,v29.16b,v7.16b
eor v31.16b,v31.16b,v23.16b
eor v30.16b,v30.16b,v5.16b
pmull v0.1q,v26.1d,v3.1d //H^3·(Xi+Ii)
eor v16.16b,v16.16b,v3.16b
pmull2 v2.1q,v26.2d,v3.2d
pmull v1.1q,v27.1d,v16.1d
eor v0.16b,v0.16b,v29.16b
eor v2.16b,v2.16b,v31.16b
eor v1.16b,v1.16b,v30.16b
b .Ldone4x
.align 4
.Ltwo:
ext v17.16b,v0.16b,v2.16b,#8 //Karatsuba post-processing
eor v18.16b,v0.16b,v2.16b
eor v1.16b,v1.16b,v17.16b
ld1 {v4.2d,v5.2d},[x2]
eor v1.16b,v1.16b,v18.16b
#ifndef __AARCH64EB__
rev64 v5.16b,v5.16b
rev64 v4.16b,v4.16b
#endif
pmull v18.1q,v0.1d,v19.1d //1st phase of reduction
ins v2.d[0],v1.d[1]
ins v1.d[1],v0.d[0]
ext v23.16b,v5.16b,v5.16b,#8
eor v0.16b,v1.16b,v18.16b
ext v18.16b,v0.16b,v0.16b,#8 //2nd phase of reduction
pmull v0.1q,v0.1d,v19.1d
eor v18.16b,v18.16b,v2.16b
eor v0.16b,v0.16b,v18.16b
ext v0.16b,v0.16b,v0.16b,#8
pmull v29.1q,v20.1d,v23.1d //H·Ii+1
eor v5.16b,v5.16b,v23.16b
eor v16.16b,v4.16b,v0.16b
ext v3.16b,v16.16b,v16.16b,#8
pmull2 v31.1q,v20.2d,v23.2d
pmull v30.1q,v21.1d,v5.1d
pmull v0.1q,v22.1d,v3.1d //H^2·(Xi+Ii)
eor v16.16b,v16.16b,v3.16b
pmull2 v2.1q,v22.2d,v3.2d
pmull2 v1.1q,v21.2d,v16.2d
eor v0.16b,v0.16b,v29.16b
eor v2.16b,v2.16b,v31.16b
eor v1.16b,v1.16b,v30.16b
b .Ldone4x
.align 4
.Lone:
ext v17.16b,v0.16b,v2.16b,#8 //Karatsuba post-processing
eor v18.16b,v0.16b,v2.16b
eor v1.16b,v1.16b,v17.16b
ld1 {v4.2d},[x2]
eor v1.16b,v1.16b,v18.16b
#ifndef __AARCH64EB__
rev64 v4.16b,v4.16b
#endif
pmull v18.1q,v0.1d,v19.1d //1st phase of reduction
ins v2.d[0],v1.d[1]
ins v1.d[1],v0.d[0]
eor v0.16b,v1.16b,v18.16b
ext v18.16b,v0.16b,v0.16b,#8 //2nd phase of reduction
pmull v0.1q,v0.1d,v19.1d
eor v18.16b,v18.16b,v2.16b
eor v0.16b,v0.16b,v18.16b
ext v0.16b,v0.16b,v0.16b,#8
eor v16.16b,v4.16b,v0.16b
ext v3.16b,v16.16b,v16.16b,#8
pmull v0.1q,v20.1d,v3.1d
eor v16.16b,v16.16b,v3.16b
pmull2 v2.1q,v20.2d,v3.2d
pmull v1.1q,v21.1d,v16.1d
.Ldone4x:
ext v17.16b,v0.16b,v2.16b,#8 //Karatsuba post-processing
eor v18.16b,v0.16b,v2.16b
eor v1.16b,v1.16b,v17.16b
eor v1.16b,v1.16b,v18.16b
pmull v18.1q,v0.1d,v19.1d //1st phase of reduction
ins v2.d[0],v1.d[1]
ins v1.d[1],v0.d[0]
eor v0.16b,v1.16b,v18.16b
ext v18.16b,v0.16b,v0.16b,#8 //2nd phase of reduction
pmull v0.1q,v0.1d,v19.1d
eor v18.16b,v18.16b,v2.16b
eor v0.16b,v0.16b,v18.16b
ext v0.16b,v0.16b,v0.16b,#8
#ifndef __AARCH64EB__
rev64 v0.16b,v0.16b
#endif
st1 {v0.2d},[x0] //write out Xi
ret
.size gcm_ghash_v8_4x,.-gcm_ghash_v8_4x
.byte 71,72,65,83,72,32,102,111,114,32,65,82,77,118,56,44,32,67,82,89,80,84,79,71,65,77,83,32,98,121,32,60,97,112,112,114,111,64,111,112,101,110,115,115,108,46,111,114,103,62,0
.align 2
.align 2
#endif

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@ -0,0 +1,863 @@
#include "arm_arch.h"
.text
// forward "declarations" are required for Apple
.hidden OPENSSL_armcap_P
.globl poly1305_init
.hidden poly1305_init
.globl poly1305_blocks
.hidden poly1305_blocks
.globl poly1305_emit
.hidden poly1305_emit
.type poly1305_init,%function
.align 5
poly1305_init:
cmp x1,xzr
stp xzr,xzr,[x0] // zero hash value
stp xzr,xzr,[x0,#16] // [along with is_base2_26]
csel x0,xzr,x0,eq
b.eq .Lno_key
adrp x17,OPENSSL_armcap_P
ldr w17,[x17,#:lo12:OPENSSL_armcap_P]
ldp x7,x8,[x1] // load key
mov x9,#0xfffffffc0fffffff
movk x9,#0x0fff,lsl#48
#ifdef __AARCH64EB__
rev x7,x7 // flip bytes
rev x8,x8
#endif
and x7,x7,x9 // &=0ffffffc0fffffff
and x9,x9,#-4
and x8,x8,x9 // &=0ffffffc0ffffffc
stp x7,x8,[x0,#32] // save key value
tst w17,#ARMV7_NEON
adr x12,.Lpoly1305_blocks
adr x7,.Lpoly1305_blocks_neon
adr x13,.Lpoly1305_emit
adr x8,.Lpoly1305_emit_neon
csel x12,x12,x7,eq
csel x13,x13,x8,eq
#ifdef __ILP32__
stp w12,w13,[x2]
#else
stp x12,x13,[x2]
#endif
mov x0,#1
.Lno_key:
ret
.size poly1305_init,.-poly1305_init
.type poly1305_blocks,%function
.align 5
poly1305_blocks:
.Lpoly1305_blocks:
ands x2,x2,#-16
b.eq .Lno_data
ldp x4,x5,[x0] // load hash value
ldp x7,x8,[x0,#32] // load key value
ldr x6,[x0,#16]
add x9,x8,x8,lsr#2 // s1 = r1 + (r1 >> 2)
b .Loop
.align 5
.Loop:
ldp x10,x11,[x1],#16 // load input
sub x2,x2,#16
#ifdef __AARCH64EB__
rev x10,x10
rev x11,x11
#endif
adds x4,x4,x10 // accumulate input
adcs x5,x5,x11
mul x12,x4,x7 // h0*r0
adc x6,x6,x3
umulh x13,x4,x7
mul x10,x5,x9 // h1*5*r1
umulh x11,x5,x9
adds x12,x12,x10
mul x10,x4,x8 // h0*r1
adc x13,x13,x11
umulh x14,x4,x8
adds x13,x13,x10
mul x10,x5,x7 // h1*r0
adc x14,x14,xzr
umulh x11,x5,x7
adds x13,x13,x10
mul x10,x6,x9 // h2*5*r1
adc x14,x14,x11
mul x11,x6,x7 // h2*r0
adds x13,x13,x10
adc x14,x14,x11
and x10,x14,#-4 // final reduction
and x6,x14,#3
add x10,x10,x14,lsr#2
adds x4,x12,x10
adcs x5,x13,xzr
adc x6,x6,xzr
cbnz x2,.Loop
stp x4,x5,[x0] // store hash value
str x6,[x0,#16]
.Lno_data:
ret
.size poly1305_blocks,.-poly1305_blocks
.type poly1305_emit,%function
.align 5
poly1305_emit:
.Lpoly1305_emit:
ldp x4,x5,[x0] // load hash base 2^64
ldr x6,[x0,#16]
ldp x10,x11,[x2] // load nonce
adds x12,x4,#5 // compare to modulus
adcs x13,x5,xzr
adc x14,x6,xzr
tst x14,#-4 // see if it's carried/borrowed
csel x4,x4,x12,eq
csel x5,x5,x13,eq
#ifdef __AARCH64EB__
ror x10,x10,#32 // flip nonce words
ror x11,x11,#32
#endif
adds x4,x4,x10 // accumulate nonce
adc x5,x5,x11
#ifdef __AARCH64EB__
rev x4,x4 // flip output bytes
rev x5,x5
#endif
stp x4,x5,[x1] // write result
ret
.size poly1305_emit,.-poly1305_emit
.type poly1305_mult,%function
.align 5
poly1305_mult:
mul x12,x4,x7 // h0*r0
umulh x13,x4,x7
mul x10,x5,x9 // h1*5*r1
umulh x11,x5,x9
adds x12,x12,x10
mul x10,x4,x8 // h0*r1
adc x13,x13,x11
umulh x14,x4,x8
adds x13,x13,x10
mul x10,x5,x7 // h1*r0
adc x14,x14,xzr
umulh x11,x5,x7
adds x13,x13,x10
mul x10,x6,x9 // h2*5*r1
adc x14,x14,x11
mul x11,x6,x7 // h2*r0
adds x13,x13,x10
adc x14,x14,x11
and x10,x14,#-4 // final reduction
and x6,x14,#3
add x10,x10,x14,lsr#2
adds x4,x12,x10
adcs x5,x13,xzr
adc x6,x6,xzr
ret
.size poly1305_mult,.-poly1305_mult
.type poly1305_splat,%function
.align 5
poly1305_splat:
and x12,x4,#0x03ffffff // base 2^64 -> base 2^26
ubfx x13,x4,#26,#26
extr x14,x5,x4,#52
and x14,x14,#0x03ffffff
ubfx x15,x5,#14,#26
extr x16,x6,x5,#40
str w12,[x0,#16*0] // r0
add w12,w13,w13,lsl#2 // r1*5
str w13,[x0,#16*1] // r1
add w13,w14,w14,lsl#2 // r2*5
str w12,[x0,#16*2] // s1
str w14,[x0,#16*3] // r2
add w14,w15,w15,lsl#2 // r3*5
str w13,[x0,#16*4] // s2
str w15,[x0,#16*5] // r3
add w15,w16,w16,lsl#2 // r4*5
str w14,[x0,#16*6] // s3
str w16,[x0,#16*7] // r4
str w15,[x0,#16*8] // s4
ret
.size poly1305_splat,.-poly1305_splat
.type poly1305_blocks_neon,%function
.align 5
poly1305_blocks_neon:
.Lpoly1305_blocks_neon:
ldr x17,[x0,#24]
cmp x2,#128
b.hs .Lblocks_neon
cbz x17,.Lpoly1305_blocks
.Lblocks_neon:
.inst 0xd503233f // paciasp
stp x29,x30,[sp,#-80]!
add x29,sp,#0
ands x2,x2,#-16
b.eq .Lno_data_neon
cbz x17,.Lbase2_64_neon
ldp w10,w11,[x0] // load hash value base 2^26
ldp w12,w13,[x0,#8]
ldr w14,[x0,#16]
tst x2,#31
b.eq .Leven_neon
ldp x7,x8,[x0,#32] // load key value
add x4,x10,x11,lsl#26 // base 2^26 -> base 2^64
lsr x5,x12,#12
adds x4,x4,x12,lsl#52
add x5,x5,x13,lsl#14
adc x5,x5,xzr
lsr x6,x14,#24
adds x5,x5,x14,lsl#40
adc x14,x6,xzr // can be partially reduced...
ldp x12,x13,[x1],#16 // load input
sub x2,x2,#16
add x9,x8,x8,lsr#2 // s1 = r1 + (r1 >> 2)
and x10,x14,#-4 // ... so reduce
and x6,x14,#3
add x10,x10,x14,lsr#2
adds x4,x4,x10
adcs x5,x5,xzr
adc x6,x6,xzr
#ifdef __AARCH64EB__
rev x12,x12
rev x13,x13
#endif
adds x4,x4,x12 // accumulate input
adcs x5,x5,x13
adc x6,x6,x3
bl poly1305_mult
ldr x30,[sp,#8]
cbz x3,.Lstore_base2_64_neon
and x10,x4,#0x03ffffff // base 2^64 -> base 2^26
ubfx x11,x4,#26,#26
extr x12,x5,x4,#52
and x12,x12,#0x03ffffff
ubfx x13,x5,#14,#26
extr x14,x6,x5,#40
cbnz x2,.Leven_neon
stp w10,w11,[x0] // store hash value base 2^26
stp w12,w13,[x0,#8]
str w14,[x0,#16]
b .Lno_data_neon
.align 4
.Lstore_base2_64_neon:
stp x4,x5,[x0] // store hash value base 2^64
stp x6,xzr,[x0,#16] // note that is_base2_26 is zeroed
b .Lno_data_neon
.align 4
.Lbase2_64_neon:
ldp x7,x8,[x0,#32] // load key value
ldp x4,x5,[x0] // load hash value base 2^64
ldr x6,[x0,#16]
tst x2,#31
b.eq .Linit_neon
ldp x12,x13,[x1],#16 // load input
sub x2,x2,#16
add x9,x8,x8,lsr#2 // s1 = r1 + (r1 >> 2)
#ifdef __AARCH64EB__
rev x12,x12
rev x13,x13
#endif
adds x4,x4,x12 // accumulate input
adcs x5,x5,x13
adc x6,x6,x3
bl poly1305_mult
.Linit_neon:
and x10,x4,#0x03ffffff // base 2^64 -> base 2^26
ubfx x11,x4,#26,#26
extr x12,x5,x4,#52
and x12,x12,#0x03ffffff
ubfx x13,x5,#14,#26
extr x14,x6,x5,#40
stp d8,d9,[sp,#16] // meet ABI requirements
stp d10,d11,[sp,#32]
stp d12,d13,[sp,#48]
stp d14,d15,[sp,#64]
fmov d24,x10
fmov d25,x11
fmov d26,x12
fmov d27,x13
fmov d28,x14
////////////////////////////////// initialize r^n table
mov x4,x7 // r^1
add x9,x8,x8,lsr#2 // s1 = r1 + (r1 >> 2)
mov x5,x8
mov x6,xzr
add x0,x0,#48+12
bl poly1305_splat
bl poly1305_mult // r^2
sub x0,x0,#4
bl poly1305_splat
bl poly1305_mult // r^3
sub x0,x0,#4
bl poly1305_splat
bl poly1305_mult // r^4
sub x0,x0,#4
bl poly1305_splat
ldr x30,[sp,#8]
add x16,x1,#32
adr x17,.Lzeros
subs x2,x2,#64
csel x16,x17,x16,lo
mov x4,#1
stur x4,[x0,#-24] // set is_base2_26
sub x0,x0,#48 // restore original x0
b .Ldo_neon
.align 4
.Leven_neon:
add x16,x1,#32
adr x17,.Lzeros
subs x2,x2,#64
csel x16,x17,x16,lo
stp d8,d9,[sp,#16] // meet ABI requirements
stp d10,d11,[sp,#32]
stp d12,d13,[sp,#48]
stp d14,d15,[sp,#64]
fmov d24,x10
fmov d25,x11
fmov d26,x12
fmov d27,x13
fmov d28,x14
.Ldo_neon:
ldp x8,x12,[x16],#16 // inp[2:3] (or zero)
ldp x9,x13,[x16],#48
lsl x3,x3,#24
add x15,x0,#48
#ifdef __AARCH64EB__
rev x8,x8
rev x12,x12
rev x9,x9
rev x13,x13
#endif
and x4,x8,#0x03ffffff // base 2^64 -> base 2^26
and x5,x9,#0x03ffffff
ubfx x6,x8,#26,#26
ubfx x7,x9,#26,#26
add x4,x4,x5,lsl#32 // bfi x4,x5,#32,#32
extr x8,x12,x8,#52
extr x9,x13,x9,#52
add x6,x6,x7,lsl#32 // bfi x6,x7,#32,#32
fmov d14,x4
and x8,x8,#0x03ffffff
and x9,x9,#0x03ffffff
ubfx x10,x12,#14,#26
ubfx x11,x13,#14,#26
add x12,x3,x12,lsr#40
add x13,x3,x13,lsr#40
add x8,x8,x9,lsl#32 // bfi x8,x9,#32,#32
fmov d15,x6
add x10,x10,x11,lsl#32 // bfi x10,x11,#32,#32
add x12,x12,x13,lsl#32 // bfi x12,x13,#32,#32
fmov d16,x8
fmov d17,x10
fmov d18,x12
ldp x8,x12,[x1],#16 // inp[0:1]
ldp x9,x13,[x1],#48
ld1 {v0.4s,v1.4s,v2.4s,v3.4s},[x15],#64
ld1 {v4.4s,v5.4s,v6.4s,v7.4s},[x15],#64
ld1 {v8.4s},[x15]
#ifdef __AARCH64EB__
rev x8,x8
rev x12,x12
rev x9,x9
rev x13,x13
#endif
and x4,x8,#0x03ffffff // base 2^64 -> base 2^26
and x5,x9,#0x03ffffff
ubfx x6,x8,#26,#26
ubfx x7,x9,#26,#26
add x4,x4,x5,lsl#32 // bfi x4,x5,#32,#32
extr x8,x12,x8,#52
extr x9,x13,x9,#52
add x6,x6,x7,lsl#32 // bfi x6,x7,#32,#32
fmov d9,x4
and x8,x8,#0x03ffffff
and x9,x9,#0x03ffffff
ubfx x10,x12,#14,#26
ubfx x11,x13,#14,#26
add x12,x3,x12,lsr#40
add x13,x3,x13,lsr#40
add x8,x8,x9,lsl#32 // bfi x8,x9,#32,#32
fmov d10,x6
add x10,x10,x11,lsl#32 // bfi x10,x11,#32,#32
add x12,x12,x13,lsl#32 // bfi x12,x13,#32,#32
movi v31.2d,#-1
fmov d11,x8
fmov d12,x10
fmov d13,x12
ushr v31.2d,v31.2d,#38
b.ls .Lskip_loop
.align 4
.Loop_neon:
////////////////////////////////////////////////////////////////
// ((inp[0]*r^4+inp[2]*r^2+inp[4])*r^4+inp[6]*r^2
// ((inp[1]*r^4+inp[3]*r^2+inp[5])*r^3+inp[7]*r
// ___________________/
// ((inp[0]*r^4+inp[2]*r^2+inp[4])*r^4+inp[6]*r^2+inp[8])*r^2
// ((inp[1]*r^4+inp[3]*r^2+inp[5])*r^4+inp[7]*r^2+inp[9])*r
// ___________________/ ____________________/
//
// Note that we start with inp[2:3]*r^2. This is because it
// doesn't depend on reduction in previous iteration.
////////////////////////////////////////////////////////////////
// d4 = h0*r4 + h1*r3 + h2*r2 + h3*r1 + h4*r0
// d3 = h0*r3 + h1*r2 + h2*r1 + h3*r0 + h4*5*r4
// d2 = h0*r2 + h1*r1 + h2*r0 + h3*5*r4 + h4*5*r3
// d1 = h0*r1 + h1*r0 + h2*5*r4 + h3*5*r3 + h4*5*r2
// d0 = h0*r0 + h1*5*r4 + h2*5*r3 + h3*5*r2 + h4*5*r1
subs x2,x2,#64
umull v23.2d,v14.2s,v7.s[2]
csel x16,x17,x16,lo
umull v22.2d,v14.2s,v5.s[2]
umull v21.2d,v14.2s,v3.s[2]
ldp x8,x12,[x16],#16 // inp[2:3] (or zero)
umull v20.2d,v14.2s,v1.s[2]
ldp x9,x13,[x16],#48
umull v19.2d,v14.2s,v0.s[2]
#ifdef __AARCH64EB__
rev x8,x8
rev x12,x12
rev x9,x9
rev x13,x13
#endif
umlal v23.2d,v15.2s,v5.s[2]
and x4,x8,#0x03ffffff // base 2^64 -> base 2^26
umlal v22.2d,v15.2s,v3.s[2]
and x5,x9,#0x03ffffff
umlal v21.2d,v15.2s,v1.s[2]
ubfx x6,x8,#26,#26
umlal v20.2d,v15.2s,v0.s[2]
ubfx x7,x9,#26,#26
umlal v19.2d,v15.2s,v8.s[2]
add x4,x4,x5,lsl#32 // bfi x4,x5,#32,#32
umlal v23.2d,v16.2s,v3.s[2]
extr x8,x12,x8,#52
umlal v22.2d,v16.2s,v1.s[2]
extr x9,x13,x9,#52
umlal v21.2d,v16.2s,v0.s[2]
add x6,x6,x7,lsl#32 // bfi x6,x7,#32,#32
umlal v20.2d,v16.2s,v8.s[2]
fmov d14,x4
umlal v19.2d,v16.2s,v6.s[2]
and x8,x8,#0x03ffffff
umlal v23.2d,v17.2s,v1.s[2]
and x9,x9,#0x03ffffff
umlal v22.2d,v17.2s,v0.s[2]
ubfx x10,x12,#14,#26
umlal v21.2d,v17.2s,v8.s[2]
ubfx x11,x13,#14,#26
umlal v20.2d,v17.2s,v6.s[2]
add x8,x8,x9,lsl#32 // bfi x8,x9,#32,#32
umlal v19.2d,v17.2s,v4.s[2]
fmov d15,x6
add v11.2s,v11.2s,v26.2s
add x12,x3,x12,lsr#40
umlal v23.2d,v18.2s,v0.s[2]
add x13,x3,x13,lsr#40
umlal v22.2d,v18.2s,v8.s[2]
add x10,x10,x11,lsl#32 // bfi x10,x11,#32,#32
umlal v21.2d,v18.2s,v6.s[2]
add x12,x12,x13,lsl#32 // bfi x12,x13,#32,#32
umlal v20.2d,v18.2s,v4.s[2]
fmov d16,x8
umlal v19.2d,v18.2s,v2.s[2]
fmov d17,x10
////////////////////////////////////////////////////////////////
// (hash+inp[0:1])*r^4 and accumulate
add v9.2s,v9.2s,v24.2s
fmov d18,x12
umlal v22.2d,v11.2s,v1.s[0]
ldp x8,x12,[x1],#16 // inp[0:1]
umlal v19.2d,v11.2s,v6.s[0]
ldp x9,x13,[x1],#48
umlal v23.2d,v11.2s,v3.s[0]
umlal v20.2d,v11.2s,v8.s[0]
umlal v21.2d,v11.2s,v0.s[0]
#ifdef __AARCH64EB__
rev x8,x8
rev x12,x12
rev x9,x9
rev x13,x13
#endif
add v10.2s,v10.2s,v25.2s
umlal v22.2d,v9.2s,v5.s[0]
umlal v23.2d,v9.2s,v7.s[0]
and x4,x8,#0x03ffffff // base 2^64 -> base 2^26
umlal v21.2d,v9.2s,v3.s[0]
and x5,x9,#0x03ffffff
umlal v19.2d,v9.2s,v0.s[0]
ubfx x6,x8,#26,#26
umlal v20.2d,v9.2s,v1.s[0]
ubfx x7,x9,#26,#26
add v12.2s,v12.2s,v27.2s
add x4,x4,x5,lsl#32 // bfi x4,x5,#32,#32
umlal v22.2d,v10.2s,v3.s[0]
extr x8,x12,x8,#52
umlal v23.2d,v10.2s,v5.s[0]
extr x9,x13,x9,#52
umlal v19.2d,v10.2s,v8.s[0]
add x6,x6,x7,lsl#32 // bfi x6,x7,#32,#32
umlal v21.2d,v10.2s,v1.s[0]
fmov d9,x4
umlal v20.2d,v10.2s,v0.s[0]
and x8,x8,#0x03ffffff
add v13.2s,v13.2s,v28.2s
and x9,x9,#0x03ffffff
umlal v22.2d,v12.2s,v0.s[0]
ubfx x10,x12,#14,#26
umlal v19.2d,v12.2s,v4.s[0]
ubfx x11,x13,#14,#26
umlal v23.2d,v12.2s,v1.s[0]
add x8,x8,x9,lsl#32 // bfi x8,x9,#32,#32
umlal v20.2d,v12.2s,v6.s[0]
fmov d10,x6
umlal v21.2d,v12.2s,v8.s[0]
add x12,x3,x12,lsr#40
umlal v22.2d,v13.2s,v8.s[0]
add x13,x3,x13,lsr#40
umlal v19.2d,v13.2s,v2.s[0]
add x10,x10,x11,lsl#32 // bfi x10,x11,#32,#32
umlal v23.2d,v13.2s,v0.s[0]
add x12,x12,x13,lsl#32 // bfi x12,x13,#32,#32
umlal v20.2d,v13.2s,v4.s[0]
fmov d11,x8
umlal v21.2d,v13.2s,v6.s[0]
fmov d12,x10
fmov d13,x12
/////////////////////////////////////////////////////////////////
// lazy reduction as discussed in "NEON crypto" by D.J. Bernstein
// and P. Schwabe
//
// [see discussion in poly1305-armv4 module]
ushr v29.2d,v22.2d,#26
xtn v27.2s,v22.2d
ushr v30.2d,v19.2d,#26
and v19.16b,v19.16b,v31.16b
add v23.2d,v23.2d,v29.2d // h3 -> h4
bic v27.2s,#0xfc,lsl#24 // &=0x03ffffff
add v20.2d,v20.2d,v30.2d // h0 -> h1
ushr v29.2d,v23.2d,#26
xtn v28.2s,v23.2d
ushr v30.2d,v20.2d,#26
xtn v25.2s,v20.2d
bic v28.2s,#0xfc,lsl#24
add v21.2d,v21.2d,v30.2d // h1 -> h2
add v19.2d,v19.2d,v29.2d
shl v29.2d,v29.2d,#2
shrn v30.2s,v21.2d,#26
xtn v26.2s,v21.2d
add v19.2d,v19.2d,v29.2d // h4 -> h0
bic v25.2s,#0xfc,lsl#24
add v27.2s,v27.2s,v30.2s // h2 -> h3
bic v26.2s,#0xfc,lsl#24
shrn v29.2s,v19.2d,#26
xtn v24.2s,v19.2d
ushr v30.2s,v27.2s,#26
bic v27.2s,#0xfc,lsl#24
bic v24.2s,#0xfc,lsl#24
add v25.2s,v25.2s,v29.2s // h0 -> h1
add v28.2s,v28.2s,v30.2s // h3 -> h4
b.hi .Loop_neon
.Lskip_loop:
dup v16.2d,v16.d[0]
add v11.2s,v11.2s,v26.2s
////////////////////////////////////////////////////////////////
// multiply (inp[0:1]+hash) or inp[2:3] by r^2:r^1
adds x2,x2,#32
b.ne .Long_tail
dup v16.2d,v11.d[0]
add v14.2s,v9.2s,v24.2s
add v17.2s,v12.2s,v27.2s
add v15.2s,v10.2s,v25.2s
add v18.2s,v13.2s,v28.2s
.Long_tail:
dup v14.2d,v14.d[0]
umull2 v19.2d,v16.4s,v6.4s
umull2 v22.2d,v16.4s,v1.4s
umull2 v23.2d,v16.4s,v3.4s
umull2 v21.2d,v16.4s,v0.4s
umull2 v20.2d,v16.4s,v8.4s
dup v15.2d,v15.d[0]
umlal2 v19.2d,v14.4s,v0.4s
umlal2 v21.2d,v14.4s,v3.4s
umlal2 v22.2d,v14.4s,v5.4s
umlal2 v23.2d,v14.4s,v7.4s
umlal2 v20.2d,v14.4s,v1.4s
dup v17.2d,v17.d[0]
umlal2 v19.2d,v15.4s,v8.4s
umlal2 v22.2d,v15.4s,v3.4s
umlal2 v21.2d,v15.4s,v1.4s
umlal2 v23.2d,v15.4s,v5.4s
umlal2 v20.2d,v15.4s,v0.4s
dup v18.2d,v18.d[0]
umlal2 v22.2d,v17.4s,v0.4s
umlal2 v23.2d,v17.4s,v1.4s
umlal2 v19.2d,v17.4s,v4.4s
umlal2 v20.2d,v17.4s,v6.4s
umlal2 v21.2d,v17.4s,v8.4s
umlal2 v22.2d,v18.4s,v8.4s
umlal2 v19.2d,v18.4s,v2.4s
umlal2 v23.2d,v18.4s,v0.4s
umlal2 v20.2d,v18.4s,v4.4s
umlal2 v21.2d,v18.4s,v6.4s
b.eq .Lshort_tail
////////////////////////////////////////////////////////////////
// (hash+inp[0:1])*r^4:r^3 and accumulate
add v9.2s,v9.2s,v24.2s
umlal v22.2d,v11.2s,v1.2s
umlal v19.2d,v11.2s,v6.2s
umlal v23.2d,v11.2s,v3.2s
umlal v20.2d,v11.2s,v8.2s
umlal v21.2d,v11.2s,v0.2s
add v10.2s,v10.2s,v25.2s
umlal v22.2d,v9.2s,v5.2s
umlal v19.2d,v9.2s,v0.2s
umlal v23.2d,v9.2s,v7.2s
umlal v20.2d,v9.2s,v1.2s
umlal v21.2d,v9.2s,v3.2s
add v12.2s,v12.2s,v27.2s
umlal v22.2d,v10.2s,v3.2s
umlal v19.2d,v10.2s,v8.2s
umlal v23.2d,v10.2s,v5.2s
umlal v20.2d,v10.2s,v0.2s
umlal v21.2d,v10.2s,v1.2s
add v13.2s,v13.2s,v28.2s
umlal v22.2d,v12.2s,v0.2s
umlal v19.2d,v12.2s,v4.2s
umlal v23.2d,v12.2s,v1.2s
umlal v20.2d,v12.2s,v6.2s
umlal v21.2d,v12.2s,v8.2s
umlal v22.2d,v13.2s,v8.2s
umlal v19.2d,v13.2s,v2.2s
umlal v23.2d,v13.2s,v0.2s
umlal v20.2d,v13.2s,v4.2s
umlal v21.2d,v13.2s,v6.2s
.Lshort_tail:
////////////////////////////////////////////////////////////////
// horizontal add
addp v22.2d,v22.2d,v22.2d
ldp d8,d9,[sp,#16] // meet ABI requirements
addp v19.2d,v19.2d,v19.2d
ldp d10,d11,[sp,#32]
addp v23.2d,v23.2d,v23.2d
ldp d12,d13,[sp,#48]
addp v20.2d,v20.2d,v20.2d
ldp d14,d15,[sp,#64]
addp v21.2d,v21.2d,v21.2d
////////////////////////////////////////////////////////////////
// lazy reduction, but without narrowing
ushr v29.2d,v22.2d,#26
and v22.16b,v22.16b,v31.16b
ushr v30.2d,v19.2d,#26
and v19.16b,v19.16b,v31.16b
add v23.2d,v23.2d,v29.2d // h3 -> h4
add v20.2d,v20.2d,v30.2d // h0 -> h1
ushr v29.2d,v23.2d,#26
and v23.16b,v23.16b,v31.16b
ushr v30.2d,v20.2d,#26
and v20.16b,v20.16b,v31.16b
add v21.2d,v21.2d,v30.2d // h1 -> h2
add v19.2d,v19.2d,v29.2d
shl v29.2d,v29.2d,#2
ushr v30.2d,v21.2d,#26
and v21.16b,v21.16b,v31.16b
add v19.2d,v19.2d,v29.2d // h4 -> h0
add v22.2d,v22.2d,v30.2d // h2 -> h3
ushr v29.2d,v19.2d,#26
and v19.16b,v19.16b,v31.16b
ushr v30.2d,v22.2d,#26
and v22.16b,v22.16b,v31.16b
add v20.2d,v20.2d,v29.2d // h0 -> h1
add v23.2d,v23.2d,v30.2d // h3 -> h4
////////////////////////////////////////////////////////////////
// write the result, can be partially reduced
st4 {v19.s,v20.s,v21.s,v22.s}[0],[x0],#16
st1 {v23.s}[0],[x0]
.Lno_data_neon:
ldr x29,[sp],#80
.inst 0xd50323bf // autiasp
ret
.size poly1305_blocks_neon,.-poly1305_blocks_neon
.type poly1305_emit_neon,%function
.align 5
poly1305_emit_neon:
.Lpoly1305_emit_neon:
ldr x17,[x0,#24]
cbz x17,poly1305_emit
ldp w10,w11,[x0] // load hash value base 2^26
ldp w12,w13,[x0,#8]
ldr w14,[x0,#16]
add x4,x10,x11,lsl#26 // base 2^26 -> base 2^64
lsr x5,x12,#12
adds x4,x4,x12,lsl#52
add x5,x5,x13,lsl#14
adc x5,x5,xzr
lsr x6,x14,#24
adds x5,x5,x14,lsl#40
adc x6,x6,xzr // can be partially reduced...
ldp x10,x11,[x2] // load nonce
and x12,x6,#-4 // ... so reduce
add x12,x12,x6,lsr#2
and x6,x6,#3
adds x4,x4,x12
adcs x5,x5,xzr
adc x6,x6,xzr
adds x12,x4,#5 // compare to modulus
adcs x13,x5,xzr
adc x14,x6,xzr
tst x14,#-4 // see if it's carried/borrowed
csel x4,x4,x12,eq
csel x5,x5,x13,eq
#ifdef __AARCH64EB__
ror x10,x10,#32 // flip nonce words
ror x11,x11,#32
#endif
adds x4,x4,x10 // accumulate nonce
adc x5,x5,x11
#ifdef __AARCH64EB__
rev x4,x4 // flip output bytes
rev x5,x5
#endif
stp x4,x5,[x1] // write result
ret
.size poly1305_emit_neon,.-poly1305_emit_neon
.align 5
.Lzeros:
.long 0,0,0,0,0,0,0,0
.byte 80,111,108,121,49,51,48,53,32,102,111,114,32,65,82,77,118,56,44,32,67,82,89,80,84,79,71,65,77,83,32,98,121,32,60,97,112,112,114,111,64,111,112,101,110,115,115,108,46,111,114,103,62,0
.align 2
.align 2

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