[openssl] OpenSSL_1_1_1-stable update
nic.tuv at gmail.com
nic.tuv at gmail.com
Sun Jun 7 11:50:22 UTC 2020
The branch OpenSSL_1_1_1-stable has been updated
via 49eebbc408535e8670cb62ea661b696ec5819f15 (commit)
from ad178c15a112d10380a6446127b069270af666de (commit)
- Log -----------------------------------------------------------------
commit 49eebbc408535e8670cb62ea661b696ec5819f15
Author: Nicola Tuveri <nic.tuv at gmail.com>
Date: Tue Jun 2 21:06:48 2020 +0300
[crypto/ec] Remove unreachable AVX2 code in NISTZ256 implementation
`crypto/ec/ecp_nistz256.c` contained code sections guarded by a
`ECP_NISTZ256_AVX2` define.
The relevant comment read:
> /*
> * Note that by default ECP_NISTZ256_AVX2 is undefined. While it's great
> * code processing 4 points in parallel, corresponding serial operation
> * is several times slower, because it uses 29x29=58-bit multiplication
> * as opposite to 64x64=128-bit in integer-only scalar case. As result
> * it doesn't provide *significant* performance improvement. Note that
> * just defining ECP_NISTZ256_AVX2 is not sufficient to make it work,
> * you'd need to compile even asm/ecp_nistz256-avx.pl module.
> */
Without diminishing the quality of the original submission, it's evident
that this code has been basically unreachable without modifications to
the library source code and is under-tested.
This commit removes these sections from the codebase.
(cherry picked from commit 00da0f69890874feaa555fafb99b967b861e9118 ,
backported from https://github.com/openssl/openssl/pull/12019 )
Reviewed-by: Kurt Roeckx <kurt at roeckx.be>
Reviewed-by: Bernd Edlinger <bernd.edlinger at hotmail.de>
(Merged from https://github.com/openssl/openssl/pull/12046)
-----------------------------------------------------------------------
Summary of changes:
crypto/ec/asm/ecp_nistz256-avx2.pl | 2080 ------------------------------------
crypto/ec/ecp_nistz256.c | 300 +-----
2 files changed, 46 insertions(+), 2334 deletions(-)
delete mode 100755 crypto/ec/asm/ecp_nistz256-avx2.pl
diff --git a/crypto/ec/asm/ecp_nistz256-avx2.pl b/crypto/ec/asm/ecp_nistz256-avx2.pl
deleted file mode 100755
index 5071d09ac2..0000000000
--- a/crypto/ec/asm/ecp_nistz256-avx2.pl
+++ /dev/null
@@ -1,2080 +0,0 @@
-#! /usr/bin/env perl
-# Copyright 2014-2020 The OpenSSL Project Authors. All Rights Reserved.
-# Copyright (c) 2014, Intel Corporation. All Rights Reserved.
-#
-# Licensed under the OpenSSL license (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
-#
-# Originally written by Shay Gueron (1, 2), and Vlad Krasnov (1)
-# (1) Intel Corporation, Israel Development Center, Haifa, Israel
-# (2) University of Haifa, Israel
-#
-# Reference:
-# S.Gueron and V.Krasnov, "Fast Prime Field Elliptic Curve Cryptography with
-# 256 Bit Primes"
-
-$flavour = shift;
-$output = shift;
-if ($flavour =~ /\./) { $output = $flavour; undef $flavour; }
-
-$win64=0; $win64=1 if ($flavour =~ /[nm]asm|mingw64/ || $output =~ /\.asm$/);
-
-$0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
-( $xlate="${dir}x86_64-xlate.pl" and -f $xlate ) or
-( $xlate="${dir}../../perlasm/x86_64-xlate.pl" and -f $xlate) or
-die "can't locate x86_64-xlate.pl";
-
-open OUT,"| \"$^X\" $xlate $flavour $output";
-*STDOUT=*OUT;
-
-if (`$ENV{CC} -Wa,-v -c -o /dev/null -x assembler /dev/null 2>&1`
- =~ /GNU assembler version ([2-9]\.[0-9]+)/) {
- $avx = ($1>=2.19) + ($1>=2.22);
- $addx = ($1>=2.23);
-}
-
-if (!$addx && $win64 && ($flavour =~ /nasm/ || $ENV{ASM} =~ /nasm/) &&
- `nasm -v 2>&1` =~ /NASM version ([2-9]\.[0-9]+)/) {
- $avx = ($1>=2.09) + ($1>=2.10);
- $addx = ($1>=2.10);
-}
-
-if (!$addx && $win64 && ($flavour =~ /masm/ || $ENV{ASM} =~ /ml64/) &&
- `ml64 2>&1` =~ /Version ([0-9]+)\./) {
- $avx = ($1>=10) + ($1>=11);
- $addx = ($1>=12);
-}
-
-if (!$addx && `$ENV{CC} -v 2>&1` =~ /((?:^clang|LLVM) version|based on LLVM) ([0-9]+)\.([0-9]+)/) {
- my $ver = $2 + $3/100.0; # 3.1->3.01, 3.10->3.10
- $avx = ($ver>=3.0) + ($ver>=3.01);
- $addx = ($ver>=3.03);
-}
-
-if ($avx>=2) {{
-$digit_size = "\$29";
-$n_digits = "\$9";
-
-$code.=<<___;
-.text
-
-.align 64
-.LAVX2_AND_MASK:
-.LAVX2_POLY:
-.quad 0x1fffffff, 0x1fffffff, 0x1fffffff, 0x1fffffff
-.quad 0x1fffffff, 0x1fffffff, 0x1fffffff, 0x1fffffff
-.quad 0x1fffffff, 0x1fffffff, 0x1fffffff, 0x1fffffff
-.quad 0x000001ff, 0x000001ff, 0x000001ff, 0x000001ff
-.quad 0x00000000, 0x00000000, 0x00000000, 0x00000000
-.quad 0x00000000, 0x00000000, 0x00000000, 0x00000000
-.quad 0x00040000, 0x00040000, 0x00040000, 0x00040000
-.quad 0x1fe00000, 0x1fe00000, 0x1fe00000, 0x1fe00000
-.quad 0x00ffffff, 0x00ffffff, 0x00ffffff, 0x00ffffff
-
-.LAVX2_POLY_x2:
-.quad 0x7FFFFFFC, 0x7FFFFFFC, 0x7FFFFFFC, 0x7FFFFFFC
-.quad 0x7FFFFFFC, 0x7FFFFFFC, 0x7FFFFFFC, 0x7FFFFFFC
-.quad 0x7FFFFFFC, 0x7FFFFFFC, 0x7FFFFFFC, 0x7FFFFFFC
-.quad 0x400007FC, 0x400007FC, 0x400007FC, 0x400007FC
-.quad 0x3FFFFFFE, 0x3FFFFFFE, 0x3FFFFFFE, 0x3FFFFFFE
-.quad 0x3FFFFFFE, 0x3FFFFFFE, 0x3FFFFFFE, 0x3FFFFFFE
-.quad 0x400FFFFE, 0x400FFFFE, 0x400FFFFE, 0x400FFFFE
-.quad 0x7F7FFFFE, 0x7F7FFFFE, 0x7F7FFFFE, 0x7F7FFFFE
-.quad 0x03FFFFFC, 0x03FFFFFC, 0x03FFFFFC, 0x03FFFFFC
-
-.LAVX2_POLY_x8:
-.quad 0xFFFFFFF8, 0xFFFFFFF8, 0xFFFFFFF8, 0xFFFFFFF8
-.quad 0xFFFFFFF8, 0xFFFFFFF8, 0xFFFFFFF8, 0xFFFFFFF8
-.quad 0xFFFFFFF8, 0xFFFFFFF8, 0xFFFFFFF8, 0xFFFFFFF8
-.quad 0x80000FF8, 0x80000FF8, 0x80000FF8, 0x80000FF8
-.quad 0x7FFFFFFC, 0x7FFFFFFC, 0x7FFFFFFC, 0x7FFFFFFC
-.quad 0x7FFFFFFC, 0x7FFFFFFC, 0x7FFFFFFC, 0x7FFFFFFC
-.quad 0x801FFFFC, 0x801FFFFC, 0x801FFFFC, 0x801FFFFC
-.quad 0xFEFFFFFC, 0xFEFFFFFC, 0xFEFFFFFC, 0xFEFFFFFC
-.quad 0x07FFFFF8, 0x07FFFFF8, 0x07FFFFF8, 0x07FFFFF8
-
-.LONE:
-.quad 0x00000020, 0x00000020, 0x00000020, 0x00000020
-.quad 0x00000000, 0x00000000, 0x00000000, 0x00000000
-.quad 0x00000000, 0x00000000, 0x00000000, 0x00000000
-.quad 0x1fffc000, 0x1fffc000, 0x1fffc000, 0x1fffc000
-.quad 0x1fffffff, 0x1fffffff, 0x1fffffff, 0x1fffffff
-.quad 0x1fffffff, 0x1fffffff, 0x1fffffff, 0x1fffffff
-.quad 0x1f7fffff, 0x1f7fffff, 0x1f7fffff, 0x1f7fffff
-.quad 0x03ffffff, 0x03ffffff, 0x03ffffff, 0x03ffffff
-.quad 0x00000000, 0x00000000, 0x00000000, 0x00000000
-
-# RR = 2^266 mod p in AVX2 format, to transform from the native OpenSSL
-# Montgomery form (*2^256) to our format (*2^261)
-
-.LTO_MONT_AVX2:
-.quad 0x00000400, 0x00000400, 0x00000400, 0x00000400
-.quad 0x00000000, 0x00000000, 0x00000000, 0x00000000
-.quad 0x00000000, 0x00000000, 0x00000000, 0x00000000
-.quad 0x1ff80000, 0x1ff80000, 0x1ff80000, 0x1ff80000
-.quad 0x1fffffff, 0x1fffffff, 0x1fffffff, 0x1fffffff
-.quad 0x1fffffff, 0x1fffffff, 0x1fffffff, 0x1fffffff
-.quad 0x0fffffff, 0x0fffffff, 0x0fffffff, 0x0fffffff
-.quad 0x1fffffff, 0x1fffffff, 0x1fffffff, 0x1fffffff
-.quad 0x00000003, 0x00000003, 0x00000003, 0x00000003
-
-.LFROM_MONT_AVX2:
-.quad 0x00000001, 0x00000001, 0x00000001, 0x00000001
-.quad 0x00000000, 0x00000000, 0x00000000, 0x00000000
-.quad 0x00000000, 0x00000000, 0x00000000, 0x00000000
-.quad 0x1ffffe00, 0x1ffffe00, 0x1ffffe00, 0x1ffffe00
-.quad 0x1fffffff, 0x1fffffff, 0x1fffffff, 0x1fffffff
-.quad 0x1fffffff, 0x1fffffff, 0x1fffffff, 0x1fffffff
-.quad 0x1ffbffff, 0x1ffbffff, 0x1ffbffff, 0x1ffbffff
-.quad 0x001fffff, 0x001fffff, 0x001fffff, 0x001fffff
-.quad 0x00000000, 0x00000000, 0x00000000, 0x00000000
-
-.LIntOne:
-.long 1,1,1,1,1,1,1,1
-___
-
-{
-# This function receives a pointer to an array of four affine points
-# (X, Y, <1>) and rearranges the data for AVX2 execution, while
-# converting it to 2^29 radix redundant form
-
-my ($X0,$X1,$X2,$X3, $Y0,$Y1,$Y2,$Y3,
- $T0,$T1,$T2,$T3, $T4,$T5,$T6,$T7)=map("%ymm$_",(0..15));
-
-$code.=<<___;
-.globl ecp_nistz256_avx2_transpose_convert
-.type ecp_nistz256_avx2_transpose_convert,\@function,2
-.align 64
-ecp_nistz256_avx2_transpose_convert:
- vzeroupper
-___
-$code.=<<___ if ($win64);
- lea -8-16*10(%rsp), %rsp
- vmovaps %xmm6, -8-16*10(%rax)
- vmovaps %xmm7, -8-16*9(%rax)
- vmovaps %xmm8, -8-16*8(%rax)
- vmovaps %xmm9, -8-16*7(%rax)
- vmovaps %xmm10, -8-16*6(%rax)
- vmovaps %xmm11, -8-16*5(%rax)
- vmovaps %xmm12, -8-16*4(%rax)
- vmovaps %xmm13, -8-16*3(%rax)
- vmovaps %xmm14, -8-16*2(%rax)
- vmovaps %xmm15, -8-16*1(%rax)
-___
-$code.=<<___;
- # Load the data
- vmovdqa 32*0(%rsi), $X0
- lea 112(%rsi), %rax # size optimization
- vmovdqa 32*1(%rsi), $Y0
- lea .LAVX2_AND_MASK(%rip), %rdx
- vmovdqa 32*2(%rsi), $X1
- vmovdqa 32*3(%rsi), $Y1
- vmovdqa 32*4-112(%rax), $X2
- vmovdqa 32*5-112(%rax), $Y2
- vmovdqa 32*6-112(%rax), $X3
- vmovdqa 32*7-112(%rax), $Y3
-
- # Transpose X and Y independently
- vpunpcklqdq $X1, $X0, $T0 # T0 = [B2 A2 B0 A0]
- vpunpcklqdq $X3, $X2, $T1 # T1 = [D2 C2 D0 C0]
- vpunpckhqdq $X1, $X0, $T2 # T2 = [B3 A3 B1 A1]
- vpunpckhqdq $X3, $X2, $T3 # T3 = [D3 C3 D1 C1]
-
- vpunpcklqdq $Y1, $Y0, $T4
- vpunpcklqdq $Y3, $Y2, $T5
- vpunpckhqdq $Y1, $Y0, $T6
- vpunpckhqdq $Y3, $Y2, $T7
-
- vperm2i128 \$0x20, $T1, $T0, $X0 # X0 = [D0 C0 B0 A0]
- vperm2i128 \$0x20, $T3, $T2, $X1 # X1 = [D1 C1 B1 A1]
- vperm2i128 \$0x31, $T1, $T0, $X2 # X2 = [D2 C2 B2 A2]
- vperm2i128 \$0x31, $T3, $T2, $X3 # X3 = [D3 C3 B3 A3]
-
- vperm2i128 \$0x20, $T5, $T4, $Y0
- vperm2i128 \$0x20, $T7, $T6, $Y1
- vperm2i128 \$0x31, $T5, $T4, $Y2
- vperm2i128 \$0x31, $T7, $T6, $Y3
- vmovdqa (%rdx), $T7
-
- vpand (%rdx), $X0, $T0 # out[0] = in[0] & mask;
- vpsrlq \$29, $X0, $X0
- vpand $T7, $X0, $T1 # out[1] = (in[0] >> shift) & mask;
- vpsrlq \$29, $X0, $X0
- vpsllq \$6, $X1, $T2
- vpxor $X0, $T2, $T2
- vpand $T7, $T2, $T2 # out[2] = ((in[0] >> (shift*2)) ^ (in[1] << (64-shift*2))) & mask;
- vpsrlq \$23, $X1, $X1
- vpand $T7, $X1, $T3 # out[3] = (in[1] >> ((shift*3)%64)) & mask;
- vpsrlq \$29, $X1, $X1
- vpsllq \$12, $X2, $T4
- vpxor $X1, $T4, $T4
- vpand $T7, $T4, $T4 # out[4] = ((in[1] >> ((shift*4)%64)) ^ (in[2] << (64*2-shift*4))) & mask;
- vpsrlq \$17, $X2, $X2
- vpand $T7, $X2, $T5 # out[5] = (in[2] >> ((shift*5)%64)) & mask;
- vpsrlq \$29, $X2, $X2
- vpsllq \$18, $X3, $T6
- vpxor $X2, $T6, $T6
- vpand $T7, $T6, $T6 # out[6] = ((in[2] >> ((shift*6)%64)) ^ (in[3] << (64*3-shift*6))) & mask;
- vpsrlq \$11, $X3, $X3
- vmovdqa $T0, 32*0(%rdi)
- lea 112(%rdi), %rax # size optimization
- vpand $T7, $X3, $T0 # out[7] = (in[3] >> ((shift*7)%64)) & mask;
- vpsrlq \$29, $X3, $X3 # out[8] = (in[3] >> ((shift*8)%64)) & mask;
-
- vmovdqa $T1, 32*1(%rdi)
- vmovdqa $T2, 32*2(%rdi)
- vmovdqa $T3, 32*3(%rdi)
- vmovdqa $T4, 32*4-112(%rax)
- vmovdqa $T5, 32*5-112(%rax)
- vmovdqa $T6, 32*6-112(%rax)
- vmovdqa $T0, 32*7-112(%rax)
- vmovdqa $X3, 32*8-112(%rax)
- lea 448(%rdi), %rax # size optimization
-
- vpand $T7, $Y0, $T0 # out[0] = in[0] & mask;
- vpsrlq \$29, $Y0, $Y0
- vpand $T7, $Y0, $T1 # out[1] = (in[0] >> shift) & mask;
- vpsrlq \$29, $Y0, $Y0
- vpsllq \$6, $Y1, $T2
- vpxor $Y0, $T2, $T2
- vpand $T7, $T2, $T2 # out[2] = ((in[0] >> (shift*2)) ^ (in[1] << (64-shift*2))) & mask;
- vpsrlq \$23, $Y1, $Y1
- vpand $T7, $Y1, $T3 # out[3] = (in[1] >> ((shift*3)%64)) & mask;
- vpsrlq \$29, $Y1, $Y1
- vpsllq \$12, $Y2, $T4
- vpxor $Y1, $T4, $T4
- vpand $T7, $T4, $T4 # out[4] = ((in[1] >> ((shift*4)%64)) ^ (in[2] << (64*2-shift*4))) & mask;
- vpsrlq \$17, $Y2, $Y2
- vpand $T7, $Y2, $T5 # out[5] = (in[2] >> ((shift*5)%64)) & mask;
- vpsrlq \$29, $Y2, $Y2
- vpsllq \$18, $Y3, $T6
- vpxor $Y2, $T6, $T6
- vpand $T7, $T6, $T6 # out[6] = ((in[2] >> ((shift*6)%64)) ^ (in[3] << (64*3-shift*6))) & mask;
- vpsrlq \$11, $Y3, $Y3
- vmovdqa $T0, 32*9-448(%rax)
- vpand $T7, $Y3, $T0 # out[7] = (in[3] >> ((shift*7)%64)) & mask;
- vpsrlq \$29, $Y3, $Y3 # out[8] = (in[3] >> ((shift*8)%64)) & mask;
-
- vmovdqa $T1, 32*10-448(%rax)
- vmovdqa $T2, 32*11-448(%rax)
- vmovdqa $T3, 32*12-448(%rax)
- vmovdqa $T4, 32*13-448(%rax)
- vmovdqa $T5, 32*14-448(%rax)
- vmovdqa $T6, 32*15-448(%rax)
- vmovdqa $T0, 32*16-448(%rax)
- vmovdqa $Y3, 32*17-448(%rax)
-
- vzeroupper
-___
-$code.=<<___ if ($win64);
- movaps 16*0(%rsp), %xmm6
- movaps 16*1(%rsp), %xmm7
- movaps 16*2(%rsp), %xmm8
- movaps 16*3(%rsp), %xmm9
- movaps 16*4(%rsp), %xmm10
- movaps 16*5(%rsp), %xmm11
- movaps 16*6(%rsp), %xmm12
- movaps 16*7(%rsp), %xmm13
- movaps 16*8(%rsp), %xmm14
- movaps 16*9(%rsp), %xmm15
- lea 8+16*10(%rsp), %rsp
-___
-$code.=<<___;
- ret
-.size ecp_nistz256_avx2_transpose_convert,.-ecp_nistz256_avx2_transpose_convert
-___
-}
-{
-################################################################################
-# This function receives a pointer to an array of four AVX2 formatted points
-# (X, Y, Z) convert the data to normal representation, and rearranges the data
-
-my ($D0,$D1,$D2,$D3, $D4,$D5,$D6,$D7, $D8)=map("%ymm$_",(0..8));
-my ($T0,$T1,$T2,$T3, $T4,$T5,$T6)=map("%ymm$_",(9..15));
-
-$code.=<<___;
-
-.globl ecp_nistz256_avx2_convert_transpose_back
-.type ecp_nistz256_avx2_convert_transpose_back,\@function,2
-.align 32
-ecp_nistz256_avx2_convert_transpose_back:
- vzeroupper
-___
-$code.=<<___ if ($win64);
- lea -8-16*10(%rsp), %rsp
- vmovaps %xmm6, -8-16*10(%rax)
- vmovaps %xmm7, -8-16*9(%rax)
- vmovaps %xmm8, -8-16*8(%rax)
- vmovaps %xmm9, -8-16*7(%rax)
- vmovaps %xmm10, -8-16*6(%rax)
- vmovaps %xmm11, -8-16*5(%rax)
- vmovaps %xmm12, -8-16*4(%rax)
- vmovaps %xmm13, -8-16*3(%rax)
- vmovaps %xmm14, -8-16*2(%rax)
- vmovaps %xmm15, -8-16*1(%rax)
-___
-$code.=<<___;
- mov \$3, %ecx
-
-.Lconv_loop:
- vmovdqa 32*0(%rsi), $D0
- lea 160(%rsi), %rax # size optimization
- vmovdqa 32*1(%rsi), $D1
- vmovdqa 32*2(%rsi), $D2
- vmovdqa 32*3(%rsi), $D3
- vmovdqa 32*4-160(%rax), $D4
- vmovdqa 32*5-160(%rax), $D5
- vmovdqa 32*6-160(%rax), $D6
- vmovdqa 32*7-160(%rax), $D7
- vmovdqa 32*8-160(%rax), $D8
-
- vpsllq \$29, $D1, $D1
- vpsllq \$58, $D2, $T0
- vpaddq $D1, $D0, $D0
- vpaddq $T0, $D0, $D0 # out[0] = (in[0]) ^ (in[1] << shift*1) ^ (in[2] << shift*2);
-
- vpsrlq \$6, $D2, $D2
- vpsllq \$23, $D3, $D3
- vpsllq \$52, $D4, $T1
- vpaddq $D2, $D3, $D3
- vpaddq $D3, $T1, $D1 # out[1] = (in[2] >> (64*1-shift*2)) ^ (in[3] << shift*3%64) ^ (in[4] << shift*4%64);
-
- vpsrlq \$12, $D4, $D4
- vpsllq \$17, $D5, $D5
- vpsllq \$46, $D6, $T2
- vpaddq $D4, $D5, $D5
- vpaddq $D5, $T2, $D2 # out[2] = (in[4] >> (64*2-shift*4)) ^ (in[5] << shift*5%64) ^ (in[6] << shift*6%64);
-
- vpsrlq \$18, $D6, $D6
- vpsllq \$11, $D7, $D7
- vpsllq \$40, $D8, $T3
- vpaddq $D6, $D7, $D7
- vpaddq $D7, $T3, $D3 # out[3] = (in[6] >> (64*3-shift*6)) ^ (in[7] << shift*7%64) ^ (in[8] << shift*8%64);
-
- vpunpcklqdq $D1, $D0, $T0 # T0 = [B2 A2 B0 A0]
- vpunpcklqdq $D3, $D2, $T1 # T1 = [D2 C2 D0 C0]
- vpunpckhqdq $D1, $D0, $T2 # T2 = [B3 A3 B1 A1]
- vpunpckhqdq $D3, $D2, $T3 # T3 = [D3 C3 D1 C1]
-
- vperm2i128 \$0x20, $T1, $T0, $D0 # X0 = [D0 C0 B0 A0]
- vperm2i128 \$0x20, $T3, $T2, $D1 # X1 = [D1 C1 B1 A1]
- vperm2i128 \$0x31, $T1, $T0, $D2 # X2 = [D2 C2 B2 A2]
- vperm2i128 \$0x31, $T3, $T2, $D3 # X3 = [D3 C3 B3 A3]
-
- vmovdqa $D0, 32*0(%rdi)
- vmovdqa $D1, 32*3(%rdi)
- vmovdqa $D2, 32*6(%rdi)
- vmovdqa $D3, 32*9(%rdi)
-
- lea 32*9(%rsi), %rsi
- lea 32*1(%rdi), %rdi
-
- dec %ecx
- jnz .Lconv_loop
-
- vzeroupper
-___
-$code.=<<___ if ($win64);
- movaps 16*0(%rsp), %xmm6
- movaps 16*1(%rsp), %xmm7
- movaps 16*2(%rsp), %xmm8
- movaps 16*3(%rsp), %xmm9
- movaps 16*4(%rsp), %xmm10
- movaps 16*5(%rsp), %xmm11
- movaps 16*6(%rsp), %xmm12
- movaps 16*7(%rsp), %xmm13
- movaps 16*8(%rsp), %xmm14
- movaps 16*9(%rsp), %xmm15
- lea 8+16*10(%rsp), %rsp
-___
-$code.=<<___;
- ret
-.size ecp_nistz256_avx2_convert_transpose_back,.-ecp_nistz256_avx2_convert_transpose_back
-___
-}
-{
-my ($r_ptr,$a_ptr,$b_ptr,$itr)=("%rdi","%rsi","%rdx","%ecx");
-my ($ACC0,$ACC1,$ACC2,$ACC3,$ACC4,$ACC5,$ACC6,$ACC7,$ACC8)=map("%ymm$_",(0..8));
-my ($B,$Y,$T0,$AND_MASK,$OVERFLOW)=map("%ymm$_",(9..13));
-
-sub NORMALIZE {
-my $ret=<<___;
- vpsrlq $digit_size, $ACC0, $T0
- vpand $AND_MASK, $ACC0, $ACC0
- vpaddq $T0, $ACC1, $ACC1
-
- vpsrlq $digit_size, $ACC1, $T0
- vpand $AND_MASK, $ACC1, $ACC1
- vpaddq $T0, $ACC2, $ACC2
-
- vpsrlq $digit_size, $ACC2, $T0
- vpand $AND_MASK, $ACC2, $ACC2
- vpaddq $T0, $ACC3, $ACC3
-
- vpsrlq $digit_size, $ACC3, $T0
- vpand $AND_MASK, $ACC3, $ACC3
- vpaddq $T0, $ACC4, $ACC4
-
- vpsrlq $digit_size, $ACC4, $T0
- vpand $AND_MASK, $ACC4, $ACC4
- vpaddq $T0, $ACC5, $ACC5
-
- vpsrlq $digit_size, $ACC5, $T0
- vpand $AND_MASK, $ACC5, $ACC5
- vpaddq $T0, $ACC6, $ACC6
-
- vpsrlq $digit_size, $ACC6, $T0
- vpand $AND_MASK, $ACC6, $ACC6
- vpaddq $T0, $ACC7, $ACC7
-
- vpsrlq $digit_size, $ACC7, $T0
- vpand $AND_MASK, $ACC7, $ACC7
- vpaddq $T0, $ACC8, $ACC8
- #vpand $AND_MASK, $ACC8, $ACC8
-___
- $ret;
-}
-
-sub STORE {
-my $ret=<<___;
- vmovdqa $ACC0, 32*0(%rdi)
- lea 160(%rdi), %rax # size optimization
- vmovdqa $ACC1, 32*1(%rdi)
- vmovdqa $ACC2, 32*2(%rdi)
- vmovdqa $ACC3, 32*3(%rdi)
- vmovdqa $ACC4, 32*4-160(%rax)
- vmovdqa $ACC5, 32*5-160(%rax)
- vmovdqa $ACC6, 32*6-160(%rax)
- vmovdqa $ACC7, 32*7-160(%rax)
- vmovdqa $ACC8, 32*8-160(%rax)
-___
- $ret;
-}
-
-$code.=<<___;
-.type avx2_normalize,\@abi-omnipotent
-.align 32
-avx2_normalize:
- vpsrlq $digit_size, $ACC0, $T0
- vpand $AND_MASK, $ACC0, $ACC0
- vpaddq $T0, $ACC1, $ACC1
-
- vpsrlq $digit_size, $ACC1, $T0
- vpand $AND_MASK, $ACC1, $ACC1
- vpaddq $T0, $ACC2, $ACC2
-
- vpsrlq $digit_size, $ACC2, $T0
- vpand $AND_MASK, $ACC2, $ACC2
- vpaddq $T0, $ACC3, $ACC3
-
- vpsrlq $digit_size, $ACC3, $T0
- vpand $AND_MASK, $ACC3, $ACC3
- vpaddq $T0, $ACC4, $ACC4
-
- vpsrlq $digit_size, $ACC4, $T0
- vpand $AND_MASK, $ACC4, $ACC4
- vpaddq $T0, $ACC5, $ACC5
-
- vpsrlq $digit_size, $ACC5, $T0
- vpand $AND_MASK, $ACC5, $ACC5
- vpaddq $T0, $ACC6, $ACC6
-
- vpsrlq $digit_size, $ACC6, $T0
- vpand $AND_MASK, $ACC6, $ACC6
- vpaddq $T0, $ACC7, $ACC7
-
- vpsrlq $digit_size, $ACC7, $T0
- vpand $AND_MASK, $ACC7, $ACC7
- vpaddq $T0, $ACC8, $ACC8
- #vpand $AND_MASK, $ACC8, $ACC8
-
- ret
-.size avx2_normalize,.-avx2_normalize
-
-.type avx2_normalize_n_store,\@abi-omnipotent
-.align 32
-avx2_normalize_n_store:
- vpsrlq $digit_size, $ACC0, $T0
- vpand $AND_MASK, $ACC0, $ACC0
- vpaddq $T0, $ACC1, $ACC1
-
- vpsrlq $digit_size, $ACC1, $T0
- vpand $AND_MASK, $ACC1, $ACC1
- vmovdqa $ACC0, 32*0(%rdi)
- lea 160(%rdi), %rax # size optimization
- vpaddq $T0, $ACC2, $ACC2
-
- vpsrlq $digit_size, $ACC2, $T0
- vpand $AND_MASK, $ACC2, $ACC2
- vmovdqa $ACC1, 32*1(%rdi)
- vpaddq $T0, $ACC3, $ACC3
-
- vpsrlq $digit_size, $ACC3, $T0
- vpand $AND_MASK, $ACC3, $ACC3
- vmovdqa $ACC2, 32*2(%rdi)
- vpaddq $T0, $ACC4, $ACC4
-
- vpsrlq $digit_size, $ACC4, $T0
- vpand $AND_MASK, $ACC4, $ACC4
- vmovdqa $ACC3, 32*3(%rdi)
- vpaddq $T0, $ACC5, $ACC5
-
- vpsrlq $digit_size, $ACC5, $T0
- vpand $AND_MASK, $ACC5, $ACC5
- vmovdqa $ACC4, 32*4-160(%rax)
- vpaddq $T0, $ACC6, $ACC6
-
- vpsrlq $digit_size, $ACC6, $T0
- vpand $AND_MASK, $ACC6, $ACC6
- vmovdqa $ACC5, 32*5-160(%rax)
- vpaddq $T0, $ACC7, $ACC7
-
- vpsrlq $digit_size, $ACC7, $T0
- vpand $AND_MASK, $ACC7, $ACC7
- vmovdqa $ACC6, 32*6-160(%rax)
- vpaddq $T0, $ACC8, $ACC8
- #vpand $AND_MASK, $ACC8, $ACC8
- vmovdqa $ACC7, 32*7-160(%rax)
- vmovdqa $ACC8, 32*8-160(%rax)
-
- ret
-.size avx2_normalize_n_store,.-avx2_normalize_n_store
-
-################################################################################
-# void avx2_mul_x4(void* RESULTx4, void *Ax4, void *Bx4);
-.type avx2_mul_x4,\@abi-omnipotent
-.align 32
-avx2_mul_x4:
- lea .LAVX2_POLY(%rip), %rax
-
- vpxor $ACC0, $ACC0, $ACC0
- vpxor $ACC1, $ACC1, $ACC1
- vpxor $ACC2, $ACC2, $ACC2
- vpxor $ACC3, $ACC3, $ACC3
- vpxor $ACC4, $ACC4, $ACC4
- vpxor $ACC5, $ACC5, $ACC5
- vpxor $ACC6, $ACC6, $ACC6
- vpxor $ACC7, $ACC7, $ACC7
-
- vmovdqa 32*7(%rax), %ymm14
- vmovdqa 32*8(%rax), %ymm15
-
- mov $n_digits, $itr
- lea -512($a_ptr), $a_ptr # strategic bias to control u-op density
- jmp .Lavx2_mul_x4_loop
-
-.align 32
-.Lavx2_mul_x4_loop:
- vmovdqa 32*0($b_ptr), $B
- lea 32*1($b_ptr), $b_ptr
-
- vpmuludq 32*0+512($a_ptr), $B, $T0
- vpmuludq 32*1+512($a_ptr), $B, $OVERFLOW # borrow $OVERFLOW
- vpaddq $T0, $ACC0, $ACC0
- vpmuludq 32*2+512($a_ptr), $B, $T0
- vpaddq $OVERFLOW, $ACC1, $ACC1
- vpand $AND_MASK, $ACC0, $Y
- vpmuludq 32*3+512($a_ptr), $B, $OVERFLOW
- vpaddq $T0, $ACC2, $ACC2
- vpmuludq 32*4+512($a_ptr), $B, $T0
- vpaddq $OVERFLOW, $ACC3, $ACC3
- vpmuludq 32*5+512($a_ptr), $B, $OVERFLOW
- vpaddq $T0, $ACC4, $ACC4
- vpmuludq 32*6+512($a_ptr), $B, $T0
- vpaddq $OVERFLOW, $ACC5, $ACC5
- vpmuludq 32*7+512($a_ptr), $B, $OVERFLOW
- vpaddq $T0, $ACC6, $ACC6
-
- # Skip some multiplications, optimizing for the constant poly
- vpmuludq $AND_MASK, $Y, $T0
- vpaddq $OVERFLOW, $ACC7, $ACC7
- vpmuludq 32*8+512($a_ptr), $B, $ACC8
- vpaddq $T0, $ACC0, $OVERFLOW
- vpaddq $T0, $ACC1, $ACC0
- vpsrlq $digit_size, $OVERFLOW, $OVERFLOW
- vpaddq $T0, $ACC2, $ACC1
- vpmuludq 32*3(%rax), $Y, $T0
- vpaddq $OVERFLOW, $ACC0, $ACC0
- vpaddq $T0, $ACC3, $ACC2
- .byte 0x67
- vmovdqa $ACC4, $ACC3
- vpsllq \$18, $Y, $OVERFLOW
- .byte 0x67
- vmovdqa $ACC5, $ACC4
- vpmuludq %ymm14, $Y, $T0
- vpaddq $OVERFLOW, $ACC6, $ACC5
- vpmuludq %ymm15, $Y, $OVERFLOW
- vpaddq $T0, $ACC7, $ACC6
- vpaddq $OVERFLOW, $ACC8, $ACC7
-
- dec $itr
- jnz .Lavx2_mul_x4_loop
-
- vpxor $ACC8, $ACC8, $ACC8
-
- ret
-.size avx2_mul_x4,.-avx2_mul_x4
-
-# Function optimized for the constant 1
-################################################################################
-# void avx2_mul_by1_x4(void* RESULTx4, void *Ax4);
-.type avx2_mul_by1_x4,\@abi-omnipotent
-.align 32
-avx2_mul_by1_x4:
- lea .LAVX2_POLY(%rip), %rax
-
- vpxor $ACC0, $ACC0, $ACC0
- vpxor $ACC1, $ACC1, $ACC1
- vpxor $ACC2, $ACC2, $ACC2
- vpxor $ACC3, $ACC3, $ACC3
- vpxor $ACC4, $ACC4, $ACC4
- vpxor $ACC5, $ACC5, $ACC5
- vpxor $ACC6, $ACC6, $ACC6
- vpxor $ACC7, $ACC7, $ACC7
- vpxor $ACC8, $ACC8, $ACC8
-
- vmovdqa 32*3+.LONE(%rip), %ymm14
- vmovdqa 32*7+.LONE(%rip), %ymm15
-
- mov $n_digits, $itr
- jmp .Lavx2_mul_by1_x4_loop
-
-.align 32
-.Lavx2_mul_by1_x4_loop:
- vmovdqa 32*0($a_ptr), $B
- .byte 0x48,0x8d,0xb6,0x20,0,0,0 # lea 32*1($a_ptr), $a_ptr
-
- vpsllq \$5, $B, $OVERFLOW
- vpmuludq %ymm14, $B, $T0
- vpaddq $OVERFLOW, $ACC0, $ACC0
- vpaddq $T0, $ACC3, $ACC3
- .byte 0x67
- vpmuludq $AND_MASK, $B, $T0
- vpand $AND_MASK, $ACC0, $Y
- vpaddq $T0, $ACC4, $ACC4
- vpaddq $T0, $ACC5, $ACC5
- vpaddq $T0, $ACC6, $ACC6
- vpsllq \$23, $B, $T0
-
- .byte 0x67,0x67
- vpmuludq %ymm15, $B, $OVERFLOW
- vpsubq $T0, $ACC6, $ACC6
-
- vpmuludq $AND_MASK, $Y, $T0
- vpaddq $OVERFLOW, $ACC7, $ACC7
- vpaddq $T0, $ACC0, $OVERFLOW
- vpaddq $T0, $ACC1, $ACC0
- .byte 0x67,0x67
- vpsrlq $digit_size, $OVERFLOW, $OVERFLOW
- vpaddq $T0, $ACC2, $ACC1
- vpmuludq 32*3(%rax), $Y, $T0
- vpaddq $OVERFLOW, $ACC0, $ACC0
- vpaddq $T0, $ACC3, $ACC2
- vmovdqa $ACC4, $ACC3
- vpsllq \$18, $Y, $OVERFLOW
- vmovdqa $ACC5, $ACC4
- vpmuludq 32*7(%rax), $Y, $T0
- vpaddq $OVERFLOW, $ACC6, $ACC5
- vpaddq $T0, $ACC7, $ACC6
- vpmuludq 32*8(%rax), $Y, $ACC7
-
- dec $itr
- jnz .Lavx2_mul_by1_x4_loop
-
- ret
-.size avx2_mul_by1_x4,.-avx2_mul_by1_x4
-
-################################################################################
-# void avx2_sqr_x4(void* RESULTx4, void *Ax4, void *Bx4);
-.type avx2_sqr_x4,\@abi-omnipotent
-.align 32
-avx2_sqr_x4:
- lea .LAVX2_POLY(%rip), %rax
-
- vmovdqa 32*7(%rax), %ymm14
- vmovdqa 32*8(%rax), %ymm15
-
- vmovdqa 32*0($a_ptr), $B
- vmovdqa 32*1($a_ptr), $ACC1
- vmovdqa 32*2($a_ptr), $ACC2
- vmovdqa 32*3($a_ptr), $ACC3
- vmovdqa 32*4($a_ptr), $ACC4
- vmovdqa 32*5($a_ptr), $ACC5
- vmovdqa 32*6($a_ptr), $ACC6
- vmovdqa 32*7($a_ptr), $ACC7
- vpaddq $ACC1, $ACC1, $ACC1 # 2*$ACC0..7
- vmovdqa 32*8($a_ptr), $ACC8
- vpaddq $ACC2, $ACC2, $ACC2
- vmovdqa $ACC1, 32*0(%rcx)
- vpaddq $ACC3, $ACC3, $ACC3
- vmovdqa $ACC2, 32*1(%rcx)
- vpaddq $ACC4, $ACC4, $ACC4
- vmovdqa $ACC3, 32*2(%rcx)
- vpaddq $ACC5, $ACC5, $ACC5
- vmovdqa $ACC4, 32*3(%rcx)
- vpaddq $ACC6, $ACC6, $ACC6
- vmovdqa $ACC5, 32*4(%rcx)
- vpaddq $ACC7, $ACC7, $ACC7
- vmovdqa $ACC6, 32*5(%rcx)
- vpaddq $ACC8, $ACC8, $ACC8
- vmovdqa $ACC7, 32*6(%rcx)
- vmovdqa $ACC8, 32*7(%rcx)
-
- #itr 1
- vpmuludq $B, $B, $ACC0
- vpmuludq $B, $ACC1, $ACC1
- vpand $AND_MASK, $ACC0, $Y
- vpmuludq $B, $ACC2, $ACC2
- vpmuludq $B, $ACC3, $ACC3
- vpmuludq $B, $ACC4, $ACC4
- vpmuludq $B, $ACC5, $ACC5
- vpmuludq $B, $ACC6, $ACC6
- vpmuludq $AND_MASK, $Y, $T0
- vpmuludq $B, $ACC7, $ACC7
- vpmuludq $B, $ACC8, $ACC8
- vmovdqa 32*1($a_ptr), $B
-
- vpaddq $T0, $ACC0, $OVERFLOW
- vpaddq $T0, $ACC1, $ACC0
- vpsrlq $digit_size, $OVERFLOW, $OVERFLOW
- vpaddq $T0, $ACC2, $ACC1
- vpmuludq 32*3(%rax), $Y, $T0
- vpaddq $OVERFLOW, $ACC0, $ACC0
- vpaddq $T0, $ACC3, $ACC2
- vmovdqa $ACC4, $ACC3
- vpsllq \$18, $Y, $T0
- vmovdqa $ACC5, $ACC4
- vpmuludq %ymm14, $Y, $OVERFLOW
- vpaddq $T0, $ACC6, $ACC5
- vpmuludq %ymm15, $Y, $T0
- vpaddq $OVERFLOW, $ACC7, $ACC6
- vpaddq $T0, $ACC8, $ACC7
-
- #itr 2
- vpmuludq $B, $B, $OVERFLOW
- vpand $AND_MASK, $ACC0, $Y
- vpmuludq 32*1(%rcx), $B, $T0
- vpaddq $OVERFLOW, $ACC1, $ACC1
- vpmuludq 32*2(%rcx), $B, $OVERFLOW
- vpaddq $T0, $ACC2, $ACC2
- vpmuludq 32*3(%rcx), $B, $T0
- vpaddq $OVERFLOW, $ACC3, $ACC3
- vpmuludq 32*4(%rcx), $B, $OVERFLOW
- vpaddq $T0, $ACC4, $ACC4
- vpmuludq 32*5(%rcx), $B, $T0
- vpaddq $OVERFLOW, $ACC5, $ACC5
- vpmuludq 32*6(%rcx), $B, $OVERFLOW
- vpaddq $T0, $ACC6, $ACC6
-
- vpmuludq $AND_MASK, $Y, $T0
- vpaddq $OVERFLOW, $ACC7, $ACC7
- vpmuludq 32*7(%rcx), $B, $ACC8
- vmovdqa 32*2($a_ptr), $B
- vpaddq $T0, $ACC0, $OVERFLOW
- vpaddq $T0, $ACC1, $ACC0
- vpsrlq $digit_size, $OVERFLOW, $OVERFLOW
- vpaddq $T0, $ACC2, $ACC1
- vpmuludq 32*3(%rax), $Y, $T0
- vpaddq $OVERFLOW, $ACC0, $ACC0
- vpaddq $T0, $ACC3, $ACC2
- vmovdqa $ACC4, $ACC3
- vpsllq \$18, $Y, $T0
- vmovdqa $ACC5, $ACC4
- vpmuludq %ymm14, $Y, $OVERFLOW
- vpaddq $T0, $ACC6, $ACC5
- vpmuludq %ymm15, $Y, $T0
- vpaddq $OVERFLOW, $ACC7, $ACC6
- vpaddq $T0, $ACC8, $ACC7
-
- #itr 3
- vpmuludq $B, $B, $T0
- vpand $AND_MASK, $ACC0, $Y
- vpmuludq 32*2(%rcx), $B, $OVERFLOW
- vpaddq $T0, $ACC2, $ACC2
- vpmuludq 32*3(%rcx), $B, $T0
- vpaddq $OVERFLOW, $ACC3, $ACC3
- vpmuludq 32*4(%rcx), $B, $OVERFLOW
- vpaddq $T0, $ACC4, $ACC4
- vpmuludq 32*5(%rcx), $B, $T0
- vpaddq $OVERFLOW, $ACC5, $ACC5
- vpmuludq 32*6(%rcx), $B, $OVERFLOW
- vpaddq $T0, $ACC6, $ACC6
-
- vpmuludq $AND_MASK, $Y, $T0
- vpaddq $OVERFLOW, $ACC7, $ACC7
- vpmuludq 32*7(%rcx), $B, $ACC8
- vmovdqa 32*3($a_ptr), $B
- vpaddq $T0, $ACC0, $OVERFLOW
- vpaddq $T0, $ACC1, $ACC0
- vpsrlq $digit_size, $OVERFLOW, $OVERFLOW
- vpaddq $T0, $ACC2, $ACC1
- vpmuludq 32*3(%rax), $Y, $T0
- vpaddq $OVERFLOW, $ACC0, $ACC0
- vpaddq $T0, $ACC3, $ACC2
- vmovdqa $ACC4, $ACC3
- vpsllq \$18, $Y, $T0
- vmovdqa $ACC5, $ACC4
- vpmuludq %ymm14, $Y, $OVERFLOW
- vpaddq $T0, $ACC6, $ACC5
- vpmuludq %ymm15, $Y, $T0
- vpand $AND_MASK, $ACC0, $Y
- vpaddq $OVERFLOW, $ACC7, $ACC6
- vpaddq $T0, $ACC8, $ACC7
-
- #itr 4
- vpmuludq $B, $B, $OVERFLOW
- vpmuludq 32*3(%rcx), $B, $T0
- vpaddq $OVERFLOW, $ACC3, $ACC3
- vpmuludq 32*4(%rcx), $B, $OVERFLOW
- vpaddq $T0, $ACC4, $ACC4
- vpmuludq 32*5(%rcx), $B, $T0
- vpaddq $OVERFLOW, $ACC5, $ACC5
- vpmuludq 32*6(%rcx), $B, $OVERFLOW
- vpaddq $T0, $ACC6, $ACC6
-
- vpmuludq $AND_MASK, $Y, $T0
- vpaddq $OVERFLOW, $ACC7, $ACC7
- vpmuludq 32*7(%rcx), $B, $ACC8
- vmovdqa 32*4($a_ptr), $B
- vpaddq $T0, $ACC0, $OVERFLOW
- vpaddq $T0, $ACC1, $ACC0
- vpsrlq $digit_size, $OVERFLOW, $OVERFLOW
- vpaddq $T0, $ACC2, $ACC1
- vpmuludq 32*3(%rax), $Y, $T0
- vpaddq $OVERFLOW, $ACC0, $ACC0
- vpaddq $T0, $ACC3, $ACC2
- vmovdqa $ACC4, $ACC3
- vpsllq \$18, $Y, $T0
- vmovdqa $ACC5, $ACC4
- vpmuludq %ymm14, $Y, $OVERFLOW
- vpaddq $T0, $ACC6, $ACC5
- vpmuludq %ymm15, $Y, $T0
- vpand $AND_MASK, $ACC0, $Y
- vpaddq $OVERFLOW, $ACC7, $ACC6
- vpaddq $T0, $ACC8, $ACC7
-
- #itr 5
- vpmuludq $B, $B, $T0
- vpmuludq 32*4(%rcx), $B, $OVERFLOW
- vpaddq $T0, $ACC4, $ACC4
- vpmuludq 32*5(%rcx), $B, $T0
- vpaddq $OVERFLOW, $ACC5, $ACC5
- vpmuludq 32*6(%rcx), $B, $OVERFLOW
- vpaddq $T0, $ACC6, $ACC6
-
- vpmuludq $AND_MASK, $Y, $T0
- vpaddq $OVERFLOW, $ACC7, $ACC7
- vpmuludq 32*7(%rcx), $B, $ACC8
- vmovdqa 32*5($a_ptr), $B
- vpaddq $T0, $ACC0, $OVERFLOW
- vpsrlq $digit_size, $OVERFLOW, $OVERFLOW
- vpaddq $T0, $ACC1, $ACC0
- vpaddq $T0, $ACC2, $ACC1
- vpmuludq 32*3+.LAVX2_POLY(%rip), $Y, $T0
- vpaddq $OVERFLOW, $ACC0, $ACC0
- vpaddq $T0, $ACC3, $ACC2
- vmovdqa $ACC4, $ACC3
- vpsllq \$18, $Y, $T0
- vmovdqa $ACC5, $ACC4
- vpmuludq %ymm14, $Y, $OVERFLOW
- vpaddq $T0, $ACC6, $ACC5
- vpmuludq %ymm15, $Y, $T0
- vpand $AND_MASK, $ACC0, $Y
- vpaddq $OVERFLOW, $ACC7, $ACC6
- vpaddq $T0, $ACC8, $ACC7
-
- #itr 6
- vpmuludq $B, $B, $OVERFLOW
- vpmuludq 32*5(%rcx), $B, $T0
- vpaddq $OVERFLOW, $ACC5, $ACC5
- vpmuludq 32*6(%rcx), $B, $OVERFLOW
- vpaddq $T0, $ACC6, $ACC6
-
- vpmuludq $AND_MASK, $Y, $T0
- vpaddq $OVERFLOW, $ACC7, $ACC7
- vpmuludq 32*7(%rcx), $B, $ACC8
- vmovdqa 32*6($a_ptr), $B
- vpaddq $T0, $ACC0, $OVERFLOW
- vpaddq $T0, $ACC1, $ACC0
- vpsrlq $digit_size, $OVERFLOW, $OVERFLOW
- vpaddq $T0, $ACC2, $ACC1
- vpmuludq 32*3(%rax), $Y, $T0
- vpaddq $OVERFLOW, $ACC0, $ACC0
- vpaddq $T0, $ACC3, $ACC2
- vmovdqa $ACC4, $ACC3
- vpsllq \$18, $Y, $T0
- vmovdqa $ACC5, $ACC4
- vpmuludq %ymm14, $Y, $OVERFLOW
- vpaddq $T0, $ACC6, $ACC5
- vpmuludq %ymm15, $Y, $T0
- vpand $AND_MASK, $ACC0, $Y
- vpaddq $OVERFLOW, $ACC7, $ACC6
- vpaddq $T0, $ACC8, $ACC7
-
- #itr 7
- vpmuludq $B, $B, $T0
- vpmuludq 32*6(%rcx), $B, $OVERFLOW
- vpaddq $T0, $ACC6, $ACC6
-
- vpmuludq $AND_MASK, $Y, $T0
- vpaddq $OVERFLOW, $ACC7, $ACC7
- vpmuludq 32*7(%rcx), $B, $ACC8
- vmovdqa 32*7($a_ptr), $B
- vpaddq $T0, $ACC0, $OVERFLOW
- vpsrlq $digit_size, $OVERFLOW, $OVERFLOW
- vpaddq $T0, $ACC1, $ACC0
- vpaddq $T0, $ACC2, $ACC1
- vpmuludq 32*3(%rax), $Y, $T0
- vpaddq $OVERFLOW, $ACC0, $ACC0
- vpaddq $T0, $ACC3, $ACC2
- vmovdqa $ACC4, $ACC3
- vpsllq \$18, $Y, $T0
- vmovdqa $ACC5, $ACC4
- vpmuludq %ymm14, $Y, $OVERFLOW
- vpaddq $T0, $ACC6, $ACC5
- vpmuludq %ymm15, $Y, $T0
- vpand $AND_MASK, $ACC0, $Y
- vpaddq $OVERFLOW, $ACC7, $ACC6
- vpaddq $T0, $ACC8, $ACC7
-
- #itr 8
- vpmuludq $B, $B, $OVERFLOW
-
- vpmuludq $AND_MASK, $Y, $T0
- vpaddq $OVERFLOW, $ACC7, $ACC7
- vpmuludq 32*7(%rcx), $B, $ACC8
- vmovdqa 32*8($a_ptr), $B
- vpaddq $T0, $ACC0, $OVERFLOW
- vpsrlq $digit_size, $OVERFLOW, $OVERFLOW
- vpaddq $T0, $ACC1, $ACC0
- vpaddq $T0, $ACC2, $ACC1
- vpmuludq 32*3(%rax), $Y, $T0
- vpaddq $OVERFLOW, $ACC0, $ACC0
- vpaddq $T0, $ACC3, $ACC2
- vmovdqa $ACC4, $ACC3
- vpsllq \$18, $Y, $T0
- vmovdqa $ACC5, $ACC4
- vpmuludq %ymm14, $Y, $OVERFLOW
- vpaddq $T0, $ACC6, $ACC5
- vpmuludq %ymm15, $Y, $T0
- vpand $AND_MASK, $ACC0, $Y
- vpaddq $OVERFLOW, $ACC7, $ACC6
- vpaddq $T0, $ACC8, $ACC7
-
- #itr 9
- vpmuludq $B, $B, $ACC8
-
- vpmuludq $AND_MASK, $Y, $T0
- vpaddq $T0, $ACC0, $OVERFLOW
- vpsrlq $digit_size, $OVERFLOW, $OVERFLOW
- vpaddq $T0, $ACC1, $ACC0
- vpaddq $T0, $ACC2, $ACC1
- vpmuludq 32*3(%rax), $Y, $T0
- vpaddq $OVERFLOW, $ACC0, $ACC0
- vpaddq $T0, $ACC3, $ACC2
- vmovdqa $ACC4, $ACC3
- vpsllq \$18, $Y, $T0
- vmovdqa $ACC5, $ACC4
- vpmuludq %ymm14, $Y, $OVERFLOW
- vpaddq $T0, $ACC6, $ACC5
- vpmuludq %ymm15, $Y, $T0
- vpaddq $OVERFLOW, $ACC7, $ACC6
- vpaddq $T0, $ACC8, $ACC7
-
- vpxor $ACC8, $ACC8, $ACC8
-
- ret
-.size avx2_sqr_x4,.-avx2_sqr_x4
-
-################################################################################
-# void avx2_sub_x4(void* RESULTx4, void *Ax4, void *Bx4);
-.type avx2_sub_x4,\@abi-omnipotent
-.align 32
-avx2_sub_x4:
- vmovdqa 32*0($a_ptr), $ACC0
- lea 160($a_ptr), $a_ptr
- lea .LAVX2_POLY_x8+128(%rip), %rax
- lea 128($b_ptr), $b_ptr
- vmovdqa 32*1-160($a_ptr), $ACC1
- vmovdqa 32*2-160($a_ptr), $ACC2
- vmovdqa 32*3-160($a_ptr), $ACC3
- vmovdqa 32*4-160($a_ptr), $ACC4
- vmovdqa 32*5-160($a_ptr), $ACC5
- vmovdqa 32*6-160($a_ptr), $ACC6
- vmovdqa 32*7-160($a_ptr), $ACC7
- vmovdqa 32*8-160($a_ptr), $ACC8
-
- vpaddq 32*0-128(%rax), $ACC0, $ACC0
- vpaddq 32*1-128(%rax), $ACC1, $ACC1
- vpaddq 32*2-128(%rax), $ACC2, $ACC2
- vpaddq 32*3-128(%rax), $ACC3, $ACC3
- vpaddq 32*4-128(%rax), $ACC4, $ACC4
- vpaddq 32*5-128(%rax), $ACC5, $ACC5
- vpaddq 32*6-128(%rax), $ACC6, $ACC6
- vpaddq 32*7-128(%rax), $ACC7, $ACC7
- vpaddq 32*8-128(%rax), $ACC8, $ACC8
-
- vpsubq 32*0-128($b_ptr), $ACC0, $ACC0
- vpsubq 32*1-128($b_ptr), $ACC1, $ACC1
- vpsubq 32*2-128($b_ptr), $ACC2, $ACC2
- vpsubq 32*3-128($b_ptr), $ACC3, $ACC3
- vpsubq 32*4-128($b_ptr), $ACC4, $ACC4
- vpsubq 32*5-128($b_ptr), $ACC5, $ACC5
- vpsubq 32*6-128($b_ptr), $ACC6, $ACC6
- vpsubq 32*7-128($b_ptr), $ACC7, $ACC7
- vpsubq 32*8-128($b_ptr), $ACC8, $ACC8
-
- ret
-.size avx2_sub_x4,.-avx2_sub_x4
-
-.type avx2_select_n_store,\@abi-omnipotent
-.align 32
-avx2_select_n_store:
- vmovdqa `8+32*9*8`(%rsp), $Y
- vpor `8+32*9*8+32`(%rsp), $Y, $Y
-
- vpandn $ACC0, $Y, $ACC0
- vpandn $ACC1, $Y, $ACC1
- vpandn $ACC2, $Y, $ACC2
- vpandn $ACC3, $Y, $ACC3
- vpandn $ACC4, $Y, $ACC4
- vpandn $ACC5, $Y, $ACC5
- vpandn $ACC6, $Y, $ACC6
- vmovdqa `8+32*9*8+32`(%rsp), $B
- vpandn $ACC7, $Y, $ACC7
- vpandn `8+32*9*8`(%rsp), $B, $B
- vpandn $ACC8, $Y, $ACC8
-
- vpand 32*0(%rsi), $B, $T0
- lea 160(%rsi), %rax
- vpand 32*1(%rsi), $B, $Y
- vpxor $T0, $ACC0, $ACC0
- vpand 32*2(%rsi), $B, $T0
- vpxor $Y, $ACC1, $ACC1
- vpand 32*3(%rsi), $B, $Y
- vpxor $T0, $ACC2, $ACC2
- vpand 32*4-160(%rax), $B, $T0
- vpxor $Y, $ACC3, $ACC3
- vpand 32*5-160(%rax), $B, $Y
- vpxor $T0, $ACC4, $ACC4
- vpand 32*6-160(%rax), $B, $T0
- vpxor $Y, $ACC5, $ACC5
- vpand 32*7-160(%rax), $B, $Y
- vpxor $T0, $ACC6, $ACC6
- vpand 32*8-160(%rax), $B, $T0
- vmovdqa `8+32*9*8+32`(%rsp), $B
- vpxor $Y, $ACC7, $ACC7
-
- vpand 32*0(%rdx), $B, $Y
- lea 160(%rdx), %rax
- vpxor $T0, $ACC8, $ACC8
- vpand 32*1(%rdx), $B, $T0
- vpxor $Y, $ACC0, $ACC0
- vpand 32*2(%rdx), $B, $Y
- vpxor $T0, $ACC1, $ACC1
- vpand 32*3(%rdx), $B, $T0
- vpxor $Y, $ACC2, $ACC2
- vpand 32*4-160(%rax), $B, $Y
- vpxor $T0, $ACC3, $ACC3
- vpand 32*5-160(%rax), $B, $T0
- vpxor $Y, $ACC4, $ACC4
- vpand 32*6-160(%rax), $B, $Y
- vpxor $T0, $ACC5, $ACC5
- vpand 32*7-160(%rax), $B, $T0
- vpxor $Y, $ACC6, $ACC6
- vpand 32*8-160(%rax), $B, $Y
- vpxor $T0, $ACC7, $ACC7
- vpxor $Y, $ACC8, $ACC8
- `&STORE`
-
- ret
-.size avx2_select_n_store,.-avx2_select_n_store
-___
-$code.=<<___ if (0); # inlined
-################################################################################
-# void avx2_mul_by2_x4(void* RESULTx4, void *Ax4);
-.type avx2_mul_by2_x4,\@abi-omnipotent
-.align 32
-avx2_mul_by2_x4:
- vmovdqa 32*0($a_ptr), $ACC0
- lea 160($a_ptr), %rax
- vmovdqa 32*1($a_ptr), $ACC1
- vmovdqa 32*2($a_ptr), $ACC2
- vmovdqa 32*3($a_ptr), $ACC3
- vmovdqa 32*4-160(%rax), $ACC4
- vmovdqa 32*5-160(%rax), $ACC5
- vmovdqa 32*6-160(%rax), $ACC6
- vmovdqa 32*7-160(%rax), $ACC7
- vmovdqa 32*8-160(%rax), $ACC8
-
- vpaddq $ACC0, $ACC0, $ACC0
- vpaddq $ACC1, $ACC1, $ACC1
- vpaddq $ACC2, $ACC2, $ACC2
- vpaddq $ACC3, $ACC3, $ACC3
- vpaddq $ACC4, $ACC4, $ACC4
- vpaddq $ACC5, $ACC5, $ACC5
- vpaddq $ACC6, $ACC6, $ACC6
- vpaddq $ACC7, $ACC7, $ACC7
- vpaddq $ACC8, $ACC8, $ACC8
-
- ret
-.size avx2_mul_by2_x4,.-avx2_mul_by2_x4
-___
-my ($r_ptr_in,$a_ptr_in,$b_ptr_in)=("%rdi","%rsi","%rdx");
-my ($r_ptr,$a_ptr,$b_ptr)=("%r8","%r9","%r10");
-
-$code.=<<___;
-################################################################################
-# void ecp_nistz256_avx2_point_add_affine_x4(void* RESULTx4, void *Ax4, void *Bx4);
-.globl ecp_nistz256_avx2_point_add_affine_x4
-.type ecp_nistz256_avx2_point_add_affine_x4,\@function,3
-.align 32
-ecp_nistz256_avx2_point_add_affine_x4:
- mov %rsp, %rax
- push %rbp
- vzeroupper
-___
-$code.=<<___ if ($win64);
- lea -16*10(%rsp), %rsp
- vmovaps %xmm6, -8-16*10(%rax)
- vmovaps %xmm7, -8-16*9(%rax)
- vmovaps %xmm8, -8-16*8(%rax)
- vmovaps %xmm9, -8-16*7(%rax)
- vmovaps %xmm10, -8-16*6(%rax)
- vmovaps %xmm11, -8-16*5(%rax)
- vmovaps %xmm12, -8-16*4(%rax)
- vmovaps %xmm13, -8-16*3(%rax)
- vmovaps %xmm14, -8-16*2(%rax)
- vmovaps %xmm15, -8-16*1(%rax)
-___
-$code.=<<___;
- lea -8(%rax), %rbp
-
-# Result + 32*0 = Result.X
-# Result + 32*9 = Result.Y
-# Result + 32*18 = Result.Z
-
-# A + 32*0 = A.X
-# A + 32*9 = A.Y
-# A + 32*18 = A.Z
-
-# B + 32*0 = B.X
-# B + 32*9 = B.Y
-
- sub \$`32*9*8+32*2+32*8`, %rsp
- and \$-64, %rsp
-
- mov $r_ptr_in, $r_ptr
- mov $a_ptr_in, $a_ptr
- mov $b_ptr_in, $b_ptr
-
- vmovdqa 32*0($a_ptr_in), %ymm0
- vmovdqa .LAVX2_AND_MASK(%rip), $AND_MASK
- vpxor %ymm1, %ymm1, %ymm1
- lea 256($a_ptr_in), %rax # size optimization
- vpor 32*1($a_ptr_in), %ymm0, %ymm0
- vpor 32*2($a_ptr_in), %ymm0, %ymm0
- vpor 32*3($a_ptr_in), %ymm0, %ymm0
- vpor 32*4-256(%rax), %ymm0, %ymm0
- lea 256(%rax), %rcx # size optimization
- vpor 32*5-256(%rax), %ymm0, %ymm0
- vpor 32*6-256(%rax), %ymm0, %ymm0
- vpor 32*7-256(%rax), %ymm0, %ymm0
- vpor 32*8-256(%rax), %ymm0, %ymm0
- vpor 32*9-256(%rax), %ymm0, %ymm0
- vpor 32*10-256(%rax), %ymm0, %ymm0
- vpor 32*11-256(%rax), %ymm0, %ymm0
- vpor 32*12-512(%rcx), %ymm0, %ymm0
- vpor 32*13-512(%rcx), %ymm0, %ymm0
- vpor 32*14-512(%rcx), %ymm0, %ymm0
- vpor 32*15-512(%rcx), %ymm0, %ymm0
- vpor 32*16-512(%rcx), %ymm0, %ymm0
- vpor 32*17-512(%rcx), %ymm0, %ymm0
- vpcmpeqq %ymm1, %ymm0, %ymm0
- vmovdqa %ymm0, `32*9*8`(%rsp)
-
- vpxor %ymm1, %ymm1, %ymm1
- vmovdqa 32*0($b_ptr), %ymm0
- lea 256($b_ptr), %rax # size optimization
- vpor 32*1($b_ptr), %ymm0, %ymm0
- vpor 32*2($b_ptr), %ymm0, %ymm0
- vpor 32*3($b_ptr), %ymm0, %ymm0
- vpor 32*4-256(%rax), %ymm0, %ymm0
- lea 256(%rax), %rcx # size optimization
- vpor 32*5-256(%rax), %ymm0, %ymm0
- vpor 32*6-256(%rax), %ymm0, %ymm0
- vpor 32*7-256(%rax), %ymm0, %ymm0
- vpor 32*8-256(%rax), %ymm0, %ymm0
- vpor 32*9-256(%rax), %ymm0, %ymm0
- vpor 32*10-256(%rax), %ymm0, %ymm0
- vpor 32*11-256(%rax), %ymm0, %ymm0
- vpor 32*12-512(%rcx), %ymm0, %ymm0
- vpor 32*13-512(%rcx), %ymm0, %ymm0
- vpor 32*14-512(%rcx), %ymm0, %ymm0
- vpor 32*15-512(%rcx), %ymm0, %ymm0
- vpor 32*16-512(%rcx), %ymm0, %ymm0
- vpor 32*17-512(%rcx), %ymm0, %ymm0
- vpcmpeqq %ymm1, %ymm0, %ymm0
- vmovdqa %ymm0, `32*9*8+32`(%rsp)
-
- # Z1^2 = Z1*Z1
- lea `32*9*2`($a_ptr), %rsi
- lea `32*9*2`(%rsp), %rdi
- lea `32*9*8+32*2`(%rsp), %rcx # temporary vector
- call avx2_sqr_x4
- call avx2_normalize_n_store
-
- # U2 = X2*Z1^2
- lea `32*9*0`($b_ptr), %rsi
- lea `32*9*2`(%rsp), %rdx
- lea `32*9*0`(%rsp), %rdi
- call avx2_mul_x4
- #call avx2_normalize
- `&STORE`
-
- # S2 = Z1*Z1^2 = Z1^3
- lea `32*9*2`($a_ptr), %rsi
- lea `32*9*2`(%rsp), %rdx
- lea `32*9*1`(%rsp), %rdi
- call avx2_mul_x4
- call avx2_normalize_n_store
-
- # S2 = S2*Y2 = Y2*Z1^3
- lea `32*9*1`($b_ptr), %rsi
- lea `32*9*1`(%rsp), %rdx
- lea `32*9*1`(%rsp), %rdi
- call avx2_mul_x4
- call avx2_normalize_n_store
-
- # H = U2 - U1 = U2 - X1
- lea `32*9*0`(%rsp), %rsi
- lea `32*9*0`($a_ptr), %rdx
- lea `32*9*3`(%rsp), %rdi
- call avx2_sub_x4
- call avx2_normalize_n_store
-
- # R = S2 - S1 = S2 - Y1
- lea `32*9*1`(%rsp), %rsi
- lea `32*9*1`($a_ptr), %rdx
- lea `32*9*4`(%rsp), %rdi
- call avx2_sub_x4
- call avx2_normalize_n_store
-
- # Z3 = H*Z1*Z2
- lea `32*9*3`(%rsp), %rsi
- lea `32*9*2`($a_ptr), %rdx
- lea `32*9*2`($r_ptr), %rdi
- call avx2_mul_x4
- call avx2_normalize
-
- lea .LONE(%rip), %rsi
- lea `32*9*2`($a_ptr), %rdx
- call avx2_select_n_store
-
- # R^2 = R^2
- lea `32*9*4`(%rsp), %rsi
- lea `32*9*6`(%rsp), %rdi
- lea `32*9*8+32*2`(%rsp), %rcx # temporary vector
- call avx2_sqr_x4
- call avx2_normalize_n_store
-
- # H^2 = H^2
- lea `32*9*3`(%rsp), %rsi
- lea `32*9*5`(%rsp), %rdi
- call avx2_sqr_x4
- call avx2_normalize_n_store
-
- # H^3 = H^2*H
- lea `32*9*3`(%rsp), %rsi
- lea `32*9*5`(%rsp), %rdx
- lea `32*9*7`(%rsp), %rdi
- call avx2_mul_x4
- call avx2_normalize_n_store
-
- # U2 = U1*H^2
- lea `32*9*0`($a_ptr), %rsi
- lea `32*9*5`(%rsp), %rdx
- lea `32*9*0`(%rsp), %rdi
- call avx2_mul_x4
- #call avx2_normalize
- `&STORE`
-
- # Hsqr = U2*2
- #lea 32*9*0(%rsp), %rsi
- #lea 32*9*5(%rsp), %rdi
- #call avx2_mul_by2_x4
-
- vpaddq $ACC0, $ACC0, $ACC0 # inlined avx2_mul_by2_x4
- lea `32*9*5`(%rsp), %rdi
- vpaddq $ACC1, $ACC1, $ACC1
- vpaddq $ACC2, $ACC2, $ACC2
- vpaddq $ACC3, $ACC3, $ACC3
- vpaddq $ACC4, $ACC4, $ACC4
- vpaddq $ACC5, $ACC5, $ACC5
- vpaddq $ACC6, $ACC6, $ACC6
- vpaddq $ACC7, $ACC7, $ACC7
- vpaddq $ACC8, $ACC8, $ACC8
- call avx2_normalize_n_store
-
- # X3 = R^2 - H^3
- #lea 32*9*6(%rsp), %rsi
- #lea 32*9*7(%rsp), %rdx
- #lea 32*9*5(%rsp), %rcx
- #lea 32*9*0($r_ptr), %rdi
- #call avx2_sub_x4
- #NORMALIZE
- #STORE
-
- # X3 = X3 - U2*2
- #lea 32*9*0($r_ptr), %rsi
- #lea 32*9*0($r_ptr), %rdi
- #call avx2_sub_x4
- #NORMALIZE
- #STORE
-
- lea `32*9*6+128`(%rsp), %rsi
- lea .LAVX2_POLY_x2+128(%rip), %rax
- lea `32*9*7+128`(%rsp), %rdx
- lea `32*9*5+128`(%rsp), %rcx
- lea `32*9*0`($r_ptr), %rdi
-
- vmovdqa 32*0-128(%rsi), $ACC0
- vmovdqa 32*1-128(%rsi), $ACC1
- vmovdqa 32*2-128(%rsi), $ACC2
- vmovdqa 32*3-128(%rsi), $ACC3
- vmovdqa 32*4-128(%rsi), $ACC4
- vmovdqa 32*5-128(%rsi), $ACC5
- vmovdqa 32*6-128(%rsi), $ACC6
- vmovdqa 32*7-128(%rsi), $ACC7
- vmovdqa 32*8-128(%rsi), $ACC8
-
- vpaddq 32*0-128(%rax), $ACC0, $ACC0
- vpaddq 32*1-128(%rax), $ACC1, $ACC1
- vpaddq 32*2-128(%rax), $ACC2, $ACC2
- vpaddq 32*3-128(%rax), $ACC3, $ACC3
- vpaddq 32*4-128(%rax), $ACC4, $ACC4
- vpaddq 32*5-128(%rax), $ACC5, $ACC5
- vpaddq 32*6-128(%rax), $ACC6, $ACC6
- vpaddq 32*7-128(%rax), $ACC7, $ACC7
- vpaddq 32*8-128(%rax), $ACC8, $ACC8
-
- vpsubq 32*0-128(%rdx), $ACC0, $ACC0
- vpsubq 32*1-128(%rdx), $ACC1, $ACC1
- vpsubq 32*2-128(%rdx), $ACC2, $ACC2
- vpsubq 32*3-128(%rdx), $ACC3, $ACC3
- vpsubq 32*4-128(%rdx), $ACC4, $ACC4
- vpsubq 32*5-128(%rdx), $ACC5, $ACC5
- vpsubq 32*6-128(%rdx), $ACC6, $ACC6
- vpsubq 32*7-128(%rdx), $ACC7, $ACC7
- vpsubq 32*8-128(%rdx), $ACC8, $ACC8
-
- vpsubq 32*0-128(%rcx), $ACC0, $ACC0
- vpsubq 32*1-128(%rcx), $ACC1, $ACC1
- vpsubq 32*2-128(%rcx), $ACC2, $ACC2
- vpsubq 32*3-128(%rcx), $ACC3, $ACC3
- vpsubq 32*4-128(%rcx), $ACC4, $ACC4
- vpsubq 32*5-128(%rcx), $ACC5, $ACC5
- vpsubq 32*6-128(%rcx), $ACC6, $ACC6
- vpsubq 32*7-128(%rcx), $ACC7, $ACC7
- vpsubq 32*8-128(%rcx), $ACC8, $ACC8
- call avx2_normalize
-
- lea 32*0($b_ptr), %rsi
- lea 32*0($a_ptr), %rdx
- call avx2_select_n_store
-
- # H = U2 - X3
- lea `32*9*0`(%rsp), %rsi
- lea `32*9*0`($r_ptr), %rdx
- lea `32*9*3`(%rsp), %rdi
- call avx2_sub_x4
- call avx2_normalize_n_store
-
- #
- lea `32*9*3`(%rsp), %rsi
- lea `32*9*4`(%rsp), %rdx
- lea `32*9*3`(%rsp), %rdi
- call avx2_mul_x4
- call avx2_normalize_n_store
-
- #
- lea `32*9*7`(%rsp), %rsi
- lea `32*9*1`($a_ptr), %rdx
- lea `32*9*1`(%rsp), %rdi
- call avx2_mul_x4
- call avx2_normalize_n_store
-
- #
- lea `32*9*3`(%rsp), %rsi
- lea `32*9*1`(%rsp), %rdx
- lea `32*9*1`($r_ptr), %rdi
- call avx2_sub_x4
- call avx2_normalize
-
- lea 32*9($b_ptr), %rsi
- lea 32*9($a_ptr), %rdx
- call avx2_select_n_store
-
- #lea 32*9*0($r_ptr), %rsi
- #lea 32*9*0($r_ptr), %rdi
- #call avx2_mul_by1_x4
- #NORMALIZE
- #STORE
-
- lea `32*9*1`($r_ptr), %rsi
- lea `32*9*1`($r_ptr), %rdi
- call avx2_mul_by1_x4
- call avx2_normalize_n_store
-
- vzeroupper
-___
-$code.=<<___ if ($win64);
- movaps %xmm6, -16*10(%rbp)
- movaps %xmm7, -16*9(%rbp)
- movaps %xmm8, -16*8(%rbp)
- movaps %xmm9, -16*7(%rbp)
- movaps %xmm10, -16*6(%rbp)
- movaps %xmm11, -16*5(%rbp)
- movaps %xmm12, -16*4(%rbp)
- movaps %xmm13, -16*3(%rbp)
- movaps %xmm14, -16*2(%rbp)
- movaps %xmm15, -16*1(%rbp)
-___
-$code.=<<___;
- mov %rbp, %rsp
- pop %rbp
- ret
-.size ecp_nistz256_avx2_point_add_affine_x4,.-ecp_nistz256_avx2_point_add_affine_x4
-
-################################################################################
-# void ecp_nistz256_avx2_point_add_affines_x4(void* RESULTx4, void *Ax4, void *Bx4);
-.globl ecp_nistz256_avx2_point_add_affines_x4
-.type ecp_nistz256_avx2_point_add_affines_x4,\@function,3
-.align 32
-ecp_nistz256_avx2_point_add_affines_x4:
- mov %rsp, %rax
- push %rbp
- vzeroupper
-___
-$code.=<<___ if ($win64);
- lea -16*10(%rsp), %rsp
- vmovaps %xmm6, -8-16*10(%rax)
- vmovaps %xmm7, -8-16*9(%rax)
- vmovaps %xmm8, -8-16*8(%rax)
- vmovaps %xmm9, -8-16*7(%rax)
- vmovaps %xmm10, -8-16*6(%rax)
- vmovaps %xmm11, -8-16*5(%rax)
- vmovaps %xmm12, -8-16*4(%rax)
- vmovaps %xmm13, -8-16*3(%rax)
- vmovaps %xmm14, -8-16*2(%rax)
- vmovaps %xmm15, -8-16*1(%rax)
-___
-$code.=<<___;
- lea -8(%rax), %rbp
-
-# Result + 32*0 = Result.X
-# Result + 32*9 = Result.Y
-# Result + 32*18 = Result.Z
-
-# A + 32*0 = A.X
-# A + 32*9 = A.Y
-
-# B + 32*0 = B.X
-# B + 32*9 = B.Y
-
- sub \$`32*9*8+32*2+32*8`, %rsp
- and \$-64, %rsp
-
- mov $r_ptr_in, $r_ptr
- mov $a_ptr_in, $a_ptr
- mov $b_ptr_in, $b_ptr
-
- vmovdqa 32*0($a_ptr_in), %ymm0
- vmovdqa .LAVX2_AND_MASK(%rip), $AND_MASK
- vpxor %ymm1, %ymm1, %ymm1
- lea 256($a_ptr_in), %rax # size optimization
- vpor 32*1($a_ptr_in), %ymm0, %ymm0
- vpor 32*2($a_ptr_in), %ymm0, %ymm0
- vpor 32*3($a_ptr_in), %ymm0, %ymm0
- vpor 32*4-256(%rax), %ymm0, %ymm0
- lea 256(%rax), %rcx # size optimization
- vpor 32*5-256(%rax), %ymm0, %ymm0
- vpor 32*6-256(%rax), %ymm0, %ymm0
- vpor 32*7-256(%rax), %ymm0, %ymm0
- vpor 32*8-256(%rax), %ymm0, %ymm0
- vpor 32*9-256(%rax), %ymm0, %ymm0
- vpor 32*10-256(%rax), %ymm0, %ymm0
- vpor 32*11-256(%rax), %ymm0, %ymm0
- vpor 32*12-512(%rcx), %ymm0, %ymm0
- vpor 32*13-512(%rcx), %ymm0, %ymm0
- vpor 32*14-512(%rcx), %ymm0, %ymm0
- vpor 32*15-512(%rcx), %ymm0, %ymm0
- vpor 32*16-512(%rcx), %ymm0, %ymm0
- vpor 32*17-512(%rcx), %ymm0, %ymm0
- vpcmpeqq %ymm1, %ymm0, %ymm0
- vmovdqa %ymm0, `32*9*8`(%rsp)
-
- vpxor %ymm1, %ymm1, %ymm1
- vmovdqa 32*0($b_ptr), %ymm0
- lea 256($b_ptr), %rax # size optimization
- vpor 32*1($b_ptr), %ymm0, %ymm0
- vpor 32*2($b_ptr), %ymm0, %ymm0
- vpor 32*3($b_ptr), %ymm0, %ymm0
- vpor 32*4-256(%rax), %ymm0, %ymm0
- lea 256(%rax), %rcx # size optimization
- vpor 32*5-256(%rax), %ymm0, %ymm0
- vpor 32*6-256(%rax), %ymm0, %ymm0
- vpor 32*7-256(%rax), %ymm0, %ymm0
- vpor 32*8-256(%rax), %ymm0, %ymm0
- vpor 32*9-256(%rax), %ymm0, %ymm0
- vpor 32*10-256(%rax), %ymm0, %ymm0
- vpor 32*11-256(%rax), %ymm0, %ymm0
- vpor 32*12-512(%rcx), %ymm0, %ymm0
- vpor 32*13-512(%rcx), %ymm0, %ymm0
- vpor 32*14-512(%rcx), %ymm0, %ymm0
- vpor 32*15-512(%rcx), %ymm0, %ymm0
- vpor 32*16-512(%rcx), %ymm0, %ymm0
- vpor 32*17-512(%rcx), %ymm0, %ymm0
- vpcmpeqq %ymm1, %ymm0, %ymm0
- vmovdqa %ymm0, `32*9*8+32`(%rsp)
-
- # H = U2 - U1 = X2 - X1
- lea `32*9*0`($b_ptr), %rsi
- lea `32*9*0`($a_ptr), %rdx
- lea `32*9*3`(%rsp), %rdi
- call avx2_sub_x4
- call avx2_normalize_n_store
-
- # R = S2 - S1 = Y2 - Y1
- lea `32*9*1`($b_ptr), %rsi
- lea `32*9*1`($a_ptr), %rdx
- lea `32*9*4`(%rsp), %rdi
- call avx2_sub_x4
- call avx2_normalize_n_store
-
- # Z3 = H*Z1*Z2 = H
- lea `32*9*3`(%rsp), %rsi
- lea `32*9*2`($r_ptr), %rdi
- call avx2_mul_by1_x4
- call avx2_normalize
-
- vmovdqa `32*9*8`(%rsp), $B
- vpor `32*9*8+32`(%rsp), $B, $B
-
- vpandn $ACC0, $B, $ACC0
- lea .LONE+128(%rip), %rax
- vpandn $ACC1, $B, $ACC1
- vpandn $ACC2, $B, $ACC2
- vpandn $ACC3, $B, $ACC3
- vpandn $ACC4, $B, $ACC4
- vpandn $ACC5, $B, $ACC5
- vpandn $ACC6, $B, $ACC6
- vpandn $ACC7, $B, $ACC7
-
- vpand 32*0-128(%rax), $B, $T0
- vpandn $ACC8, $B, $ACC8
- vpand 32*1-128(%rax), $B, $Y
- vpxor $T0, $ACC0, $ACC0
- vpand 32*2-128(%rax), $B, $T0
- vpxor $Y, $ACC1, $ACC1
- vpand 32*3-128(%rax), $B, $Y
- vpxor $T0, $ACC2, $ACC2
- vpand 32*4-128(%rax), $B, $T0
- vpxor $Y, $ACC3, $ACC3
- vpand 32*5-128(%rax), $B, $Y
- vpxor $T0, $ACC4, $ACC4
- vpand 32*6-128(%rax), $B, $T0
- vpxor $Y, $ACC5, $ACC5
- vpand 32*7-128(%rax), $B, $Y
- vpxor $T0, $ACC6, $ACC6
- vpand 32*8-128(%rax), $B, $T0
- vpxor $Y, $ACC7, $ACC7
- vpxor $T0, $ACC8, $ACC8
- `&STORE`
-
- # R^2 = R^2
- lea `32*9*4`(%rsp), %rsi
- lea `32*9*6`(%rsp), %rdi
- lea `32*9*8+32*2`(%rsp), %rcx # temporary vector
- call avx2_sqr_x4
- call avx2_normalize_n_store
-
- # H^2 = H^2
- lea `32*9*3`(%rsp), %rsi
- lea `32*9*5`(%rsp), %rdi
- call avx2_sqr_x4
- call avx2_normalize_n_store
-
- # H^3 = H^2*H
- lea `32*9*3`(%rsp), %rsi
- lea `32*9*5`(%rsp), %rdx
- lea `32*9*7`(%rsp), %rdi
- call avx2_mul_x4
- call avx2_normalize_n_store
-
- # U2 = U1*H^2
- lea `32*9*0`($a_ptr), %rsi
- lea `32*9*5`(%rsp), %rdx
- lea `32*9*0`(%rsp), %rdi
- call avx2_mul_x4
- #call avx2_normalize
- `&STORE`
-
- # Hsqr = U2*2
- #lea 32*9*0(%rsp), %rsi
- #lea 32*9*5(%rsp), %rdi
- #call avx2_mul_by2_x4
-
- vpaddq $ACC0, $ACC0, $ACC0 # inlined avx2_mul_by2_x4
- lea `32*9*5`(%rsp), %rdi
- vpaddq $ACC1, $ACC1, $ACC1
- vpaddq $ACC2, $ACC2, $ACC2
- vpaddq $ACC3, $ACC3, $ACC3
- vpaddq $ACC4, $ACC4, $ACC4
- vpaddq $ACC5, $ACC5, $ACC5
- vpaddq $ACC6, $ACC6, $ACC6
- vpaddq $ACC7, $ACC7, $ACC7
- vpaddq $ACC8, $ACC8, $ACC8
- call avx2_normalize_n_store
-
- # X3 = R^2 - H^3
- #lea 32*9*6(%rsp), %rsi
- #lea 32*9*7(%rsp), %rdx
- #lea 32*9*5(%rsp), %rcx
- #lea 32*9*0($r_ptr), %rdi
- #call avx2_sub_x4
- #NORMALIZE
- #STORE
-
- # X3 = X3 - U2*2
- #lea 32*9*0($r_ptr), %rsi
- #lea 32*9*0($r_ptr), %rdi
- #call avx2_sub_x4
- #NORMALIZE
- #STORE
-
- lea `32*9*6+128`(%rsp), %rsi
- lea .LAVX2_POLY_x2+128(%rip), %rax
- lea `32*9*7+128`(%rsp), %rdx
- lea `32*9*5+128`(%rsp), %rcx
- lea `32*9*0`($r_ptr), %rdi
-
- vmovdqa 32*0-128(%rsi), $ACC0
- vmovdqa 32*1-128(%rsi), $ACC1
- vmovdqa 32*2-128(%rsi), $ACC2
- vmovdqa 32*3-128(%rsi), $ACC3
- vmovdqa 32*4-128(%rsi), $ACC4
- vmovdqa 32*5-128(%rsi), $ACC5
- vmovdqa 32*6-128(%rsi), $ACC6
- vmovdqa 32*7-128(%rsi), $ACC7
- vmovdqa 32*8-128(%rsi), $ACC8
-
- vpaddq 32*0-128(%rax), $ACC0, $ACC0
- vpaddq 32*1-128(%rax), $ACC1, $ACC1
- vpaddq 32*2-128(%rax), $ACC2, $ACC2
- vpaddq 32*3-128(%rax), $ACC3, $ACC3
- vpaddq 32*4-128(%rax), $ACC4, $ACC4
- vpaddq 32*5-128(%rax), $ACC5, $ACC5
- vpaddq 32*6-128(%rax), $ACC6, $ACC6
- vpaddq 32*7-128(%rax), $ACC7, $ACC7
- vpaddq 32*8-128(%rax), $ACC8, $ACC8
-
- vpsubq 32*0-128(%rdx), $ACC0, $ACC0
- vpsubq 32*1-128(%rdx), $ACC1, $ACC1
- vpsubq 32*2-128(%rdx), $ACC2, $ACC2
- vpsubq 32*3-128(%rdx), $ACC3, $ACC3
- vpsubq 32*4-128(%rdx), $ACC4, $ACC4
- vpsubq 32*5-128(%rdx), $ACC5, $ACC5
- vpsubq 32*6-128(%rdx), $ACC6, $ACC6
- vpsubq 32*7-128(%rdx), $ACC7, $ACC7
- vpsubq 32*8-128(%rdx), $ACC8, $ACC8
-
- vpsubq 32*0-128(%rcx), $ACC0, $ACC0
- vpsubq 32*1-128(%rcx), $ACC1, $ACC1
- vpsubq 32*2-128(%rcx), $ACC2, $ACC2
- vpsubq 32*3-128(%rcx), $ACC3, $ACC3
- vpsubq 32*4-128(%rcx), $ACC4, $ACC4
- vpsubq 32*5-128(%rcx), $ACC5, $ACC5
- vpsubq 32*6-128(%rcx), $ACC6, $ACC6
- vpsubq 32*7-128(%rcx), $ACC7, $ACC7
- vpsubq 32*8-128(%rcx), $ACC8, $ACC8
- call avx2_normalize
-
- lea 32*0($b_ptr), %rsi
- lea 32*0($a_ptr), %rdx
- call avx2_select_n_store
-
- # H = U2 - X3
- lea `32*9*0`(%rsp), %rsi
- lea `32*9*0`($r_ptr), %rdx
- lea `32*9*3`(%rsp), %rdi
- call avx2_sub_x4
- call avx2_normalize_n_store
-
- # H = H*R
- lea `32*9*3`(%rsp), %rsi
- lea `32*9*4`(%rsp), %rdx
- lea `32*9*3`(%rsp), %rdi
- call avx2_mul_x4
- call avx2_normalize_n_store
-
- # S2 = S1 * H^3
- lea `32*9*7`(%rsp), %rsi
- lea `32*9*1`($a_ptr), %rdx
- lea `32*9*1`(%rsp), %rdi
- call avx2_mul_x4
- call avx2_normalize_n_store
-
- #
- lea `32*9*3`(%rsp), %rsi
- lea `32*9*1`(%rsp), %rdx
- lea `32*9*1`($r_ptr), %rdi
- call avx2_sub_x4
- call avx2_normalize
-
- lea 32*9($b_ptr), %rsi
- lea 32*9($a_ptr), %rdx
- call avx2_select_n_store
-
- #lea 32*9*0($r_ptr), %rsi
- #lea 32*9*0($r_ptr), %rdi
- #call avx2_mul_by1_x4
- #NORMALIZE
- #STORE
-
- lea `32*9*1`($r_ptr), %rsi
- lea `32*9*1`($r_ptr), %rdi
- call avx2_mul_by1_x4
- call avx2_normalize_n_store
-
- vzeroupper
-___
-$code.=<<___ if ($win64);
- movaps %xmm6, -16*10(%rbp)
- movaps %xmm7, -16*9(%rbp)
- movaps %xmm8, -16*8(%rbp)
- movaps %xmm9, -16*7(%rbp)
- movaps %xmm10, -16*6(%rbp)
- movaps %xmm11, -16*5(%rbp)
- movaps %xmm12, -16*4(%rbp)
- movaps %xmm13, -16*3(%rbp)
- movaps %xmm14, -16*2(%rbp)
- movaps %xmm15, -16*1(%rbp)
-___
-$code.=<<___;
- mov %rbp, %rsp
- pop %rbp
- ret
-.size ecp_nistz256_avx2_point_add_affines_x4,.-ecp_nistz256_avx2_point_add_affines_x4
-
-################################################################################
-# void ecp_nistz256_avx2_to_mont(void* RESULTx4, void *Ax4);
-.globl ecp_nistz256_avx2_to_mont
-.type ecp_nistz256_avx2_to_mont,\@function,2
-.align 32
-ecp_nistz256_avx2_to_mont:
- vzeroupper
-___
-$code.=<<___ if ($win64);
- lea -8-16*10(%rsp), %rsp
- vmovaps %xmm6, -8-16*10(%rax)
- vmovaps %xmm7, -8-16*9(%rax)
- vmovaps %xmm8, -8-16*8(%rax)
- vmovaps %xmm9, -8-16*7(%rax)
- vmovaps %xmm10, -8-16*6(%rax)
- vmovaps %xmm11, -8-16*5(%rax)
- vmovaps %xmm12, -8-16*4(%rax)
- vmovaps %xmm13, -8-16*3(%rax)
- vmovaps %xmm14, -8-16*2(%rax)
- vmovaps %xmm15, -8-16*1(%rax)
-___
-$code.=<<___;
- vmovdqa .LAVX2_AND_MASK(%rip), $AND_MASK
- lea .LTO_MONT_AVX2(%rip), %rdx
- call avx2_mul_x4
- call avx2_normalize_n_store
-
- vzeroupper
-___
-$code.=<<___ if ($win64);
- movaps 16*0(%rsp), %xmm6
- movaps 16*1(%rsp), %xmm7
- movaps 16*2(%rsp), %xmm8
- movaps 16*3(%rsp), %xmm9
- movaps 16*4(%rsp), %xmm10
- movaps 16*5(%rsp), %xmm11
- movaps 16*6(%rsp), %xmm12
- movaps 16*7(%rsp), %xmm13
- movaps 16*8(%rsp), %xmm14
- movaps 16*9(%rsp), %xmm15
- lea 8+16*10(%rsp), %rsp
-___
-$code.=<<___;
- ret
-.size ecp_nistz256_avx2_to_mont,.-ecp_nistz256_avx2_to_mont
-
-################################################################################
-# void ecp_nistz256_avx2_from_mont(void* RESULTx4, void *Ax4);
-.globl ecp_nistz256_avx2_from_mont
-.type ecp_nistz256_avx2_from_mont,\@function,2
-.align 32
-ecp_nistz256_avx2_from_mont:
- vzeroupper
-___
-$code.=<<___ if ($win64);
- lea -8-16*10(%rsp), %rsp
- vmovaps %xmm6, -8-16*10(%rax)
- vmovaps %xmm7, -8-16*9(%rax)
- vmovaps %xmm8, -8-16*8(%rax)
- vmovaps %xmm9, -8-16*7(%rax)
- vmovaps %xmm10, -8-16*6(%rax)
- vmovaps %xmm11, -8-16*5(%rax)
- vmovaps %xmm12, -8-16*4(%rax)
- vmovaps %xmm13, -8-16*3(%rax)
- vmovaps %xmm14, -8-16*2(%rax)
- vmovaps %xmm15, -8-16*1(%rax)
-___
-$code.=<<___;
- vmovdqa .LAVX2_AND_MASK(%rip), $AND_MASK
- lea .LFROM_MONT_AVX2(%rip), %rdx
- call avx2_mul_x4
- call avx2_normalize_n_store
-
- vzeroupper
-___
-$code.=<<___ if ($win64);
- movaps 16*0(%rsp), %xmm6
- movaps 16*1(%rsp), %xmm7
- movaps 16*2(%rsp), %xmm8
- movaps 16*3(%rsp), %xmm9
- movaps 16*4(%rsp), %xmm10
- movaps 16*5(%rsp), %xmm11
- movaps 16*6(%rsp), %xmm12
- movaps 16*7(%rsp), %xmm13
- movaps 16*8(%rsp), %xmm14
- movaps 16*9(%rsp), %xmm15
- lea 8+16*10(%rsp), %rsp
-___
-$code.=<<___;
- ret
-.size ecp_nistz256_avx2_from_mont,.-ecp_nistz256_avx2_from_mont
-
-################################################################################
-# void ecp_nistz256_avx2_set1(void* RESULTx4);
-.globl ecp_nistz256_avx2_set1
-.type ecp_nistz256_avx2_set1,\@function,1
-.align 32
-ecp_nistz256_avx2_set1:
- lea .LONE+128(%rip), %rax
- lea 128(%rdi), %rdi
- vzeroupper
- vmovdqa 32*0-128(%rax), %ymm0
- vmovdqa 32*1-128(%rax), %ymm1
- vmovdqa 32*2-128(%rax), %ymm2
- vmovdqa 32*3-128(%rax), %ymm3
- vmovdqa 32*4-128(%rax), %ymm4
- vmovdqa 32*5-128(%rax), %ymm5
- vmovdqa %ymm0, 32*0-128(%rdi)
- vmovdqa 32*6-128(%rax), %ymm0
- vmovdqa %ymm1, 32*1-128(%rdi)
- vmovdqa 32*7-128(%rax), %ymm1
- vmovdqa %ymm2, 32*2-128(%rdi)
- vmovdqa 32*8-128(%rax), %ymm2
- vmovdqa %ymm3, 32*3-128(%rdi)
- vmovdqa %ymm4, 32*4-128(%rdi)
- vmovdqa %ymm5, 32*5-128(%rdi)
- vmovdqa %ymm0, 32*6-128(%rdi)
- vmovdqa %ymm1, 32*7-128(%rdi)
- vmovdqa %ymm2, 32*8-128(%rdi)
-
- vzeroupper
- ret
-.size ecp_nistz256_avx2_set1,.-ecp_nistz256_avx2_set1
-___
-}
-{
-################################################################################
-# void ecp_nistz256_avx2_multi_gather_w7(void* RESULT, void *in,
-# int index0, int index1, int index2, int index3);
-################################################################################
-
-my ($val,$in_t,$index0,$index1,$index2,$index3)=("%rdi","%rsi","%edx","%ecx","%r8d","%r9d");
-my ($INDEX0,$INDEX1,$INDEX2,$INDEX3)=map("%ymm$_",(0..3));
-my ($R0a,$R0b,$R1a,$R1b,$R2a,$R2b,$R3a,$R3b)=map("%ymm$_",(4..11));
-my ($M0,$T0,$T1,$TMP0)=map("%ymm$_",(12..15));
-
-$code.=<<___;
-.globl ecp_nistz256_avx2_multi_gather_w7
-.type ecp_nistz256_avx2_multi_gather_w7,\@function,6
-.align 32
-ecp_nistz256_avx2_multi_gather_w7:
- vzeroupper
-___
-$code.=<<___ if ($win64);
- lea -8-16*10(%rsp), %rsp
- vmovaps %xmm6, -8-16*10(%rax)
- vmovaps %xmm7, -8-16*9(%rax)
- vmovaps %xmm8, -8-16*8(%rax)
- vmovaps %xmm9, -8-16*7(%rax)
- vmovaps %xmm10, -8-16*6(%rax)
- vmovaps %xmm11, -8-16*5(%rax)
- vmovaps %xmm12, -8-16*4(%rax)
- vmovaps %xmm13, -8-16*3(%rax)
- vmovaps %xmm14, -8-16*2(%rax)
- vmovaps %xmm15, -8-16*1(%rax)
-___
-$code.=<<___;
- lea .LIntOne(%rip), %rax
-
- vmovd $index0, %xmm0
- vmovd $index1, %xmm1
- vmovd $index2, %xmm2
- vmovd $index3, %xmm3
-
- vpxor $R0a, $R0a, $R0a
- vpxor $R0b, $R0b, $R0b
- vpxor $R1a, $R1a, $R1a
- vpxor $R1b, $R1b, $R1b
- vpxor $R2a, $R2a, $R2a
- vpxor $R2b, $R2b, $R2b
- vpxor $R3a, $R3a, $R3a
- vpxor $R3b, $R3b, $R3b
- vmovdqa (%rax), $M0
-
- vpermd $INDEX0, $R0a, $INDEX0
- vpermd $INDEX1, $R0a, $INDEX1
- vpermd $INDEX2, $R0a, $INDEX2
- vpermd $INDEX3, $R0a, $INDEX3
-
- mov \$64, %ecx
- lea 112($val), $val # size optimization
- jmp .Lmulti_select_loop_avx2
-
-# INDEX=0, corresponds to the point at infty (0,0)
-.align 32
-.Lmulti_select_loop_avx2:
- vpcmpeqd $INDEX0, $M0, $TMP0
-
- vmovdqa `32*0+32*64*2*0`($in_t), $T0
- vmovdqa `32*1+32*64*2*0`($in_t), $T1
- vpand $TMP0, $T0, $T0
- vpand $TMP0, $T1, $T1
- vpxor $T0, $R0a, $R0a
- vpxor $T1, $R0b, $R0b
-
- vpcmpeqd $INDEX1, $M0, $TMP0
-
- vmovdqa `32*0+32*64*2*1`($in_t), $T0
- vmovdqa `32*1+32*64*2*1`($in_t), $T1
- vpand $TMP0, $T0, $T0
- vpand $TMP0, $T1, $T1
- vpxor $T0, $R1a, $R1a
- vpxor $T1, $R1b, $R1b
-
- vpcmpeqd $INDEX2, $M0, $TMP0
-
- vmovdqa `32*0+32*64*2*2`($in_t), $T0
- vmovdqa `32*1+32*64*2*2`($in_t), $T1
- vpand $TMP0, $T0, $T0
- vpand $TMP0, $T1, $T1
- vpxor $T0, $R2a, $R2a
- vpxor $T1, $R2b, $R2b
-
- vpcmpeqd $INDEX3, $M0, $TMP0
-
- vmovdqa `32*0+32*64*2*3`($in_t), $T0
- vmovdqa `32*1+32*64*2*3`($in_t), $T1
- vpand $TMP0, $T0, $T0
- vpand $TMP0, $T1, $T1
- vpxor $T0, $R3a, $R3a
- vpxor $T1, $R3b, $R3b
-
- vpaddd (%rax), $M0, $M0 # increment
- lea 32*2($in_t), $in_t
-
- dec %ecx
- jnz .Lmulti_select_loop_avx2
-
- vmovdqu $R0a, 32*0-112($val)
- vmovdqu $R0b, 32*1-112($val)
- vmovdqu $R1a, 32*2-112($val)
- vmovdqu $R1b, 32*3-112($val)
- vmovdqu $R2a, 32*4-112($val)
- vmovdqu $R2b, 32*5-112($val)
- vmovdqu $R3a, 32*6-112($val)
- vmovdqu $R3b, 32*7-112($val)
-
- vzeroupper
-___
-$code.=<<___ if ($win64);
- movaps 16*0(%rsp), %xmm6
- movaps 16*1(%rsp), %xmm7
- movaps 16*2(%rsp), %xmm8
- movaps 16*3(%rsp), %xmm9
- movaps 16*4(%rsp), %xmm10
- movaps 16*5(%rsp), %xmm11
- movaps 16*6(%rsp), %xmm12
- movaps 16*7(%rsp), %xmm13
- movaps 16*8(%rsp), %xmm14
- movaps 16*9(%rsp), %xmm15
- lea 8+16*10(%rsp), %rsp
-___
-$code.=<<___;
- ret
-.size ecp_nistz256_avx2_multi_gather_w7,.-ecp_nistz256_avx2_multi_gather_w7
-
-.extern OPENSSL_ia32cap_P
-.globl ecp_nistz_avx2_eligible
-.type ecp_nistz_avx2_eligible,\@abi-omnipotent
-.align 32
-ecp_nistz_avx2_eligible:
- mov OPENSSL_ia32cap_P+8(%rip),%eax
- shr \$5,%eax
- and \$1,%eax
- ret
-.size ecp_nistz_avx2_eligible,.-ecp_nistz_avx2_eligible
-___
-}
-}} else {{ # assembler is too old
-$code.=<<___;
-.text
-
-.globl ecp_nistz256_avx2_transpose_convert
-.globl ecp_nistz256_avx2_convert_transpose_back
-.globl ecp_nistz256_avx2_point_add_affine_x4
-.globl ecp_nistz256_avx2_point_add_affines_x4
-.globl ecp_nistz256_avx2_to_mont
-.globl ecp_nistz256_avx2_from_mont
-.globl ecp_nistz256_avx2_set1
-.globl ecp_nistz256_avx2_multi_gather_w7
-.type ecp_nistz256_avx2_multi_gather_w7,\@abi-omnipotent
-ecp_nistz256_avx2_transpose_convert:
-ecp_nistz256_avx2_convert_transpose_back:
-ecp_nistz256_avx2_point_add_affine_x4:
-ecp_nistz256_avx2_point_add_affines_x4:
-ecp_nistz256_avx2_to_mont:
-ecp_nistz256_avx2_from_mont:
-ecp_nistz256_avx2_set1:
-ecp_nistz256_avx2_multi_gather_w7:
- .byte 0x0f,0x0b # ud2
- ret
-.size ecp_nistz256_avx2_multi_gather_w7,.-ecp_nistz256_avx2_multi_gather_w7
-
-.globl ecp_nistz_avx2_eligible
-.type ecp_nistz_avx2_eligible,\@abi-omnipotent
-ecp_nistz_avx2_eligible:
- xor %eax,%eax
- ret
-.size ecp_nistz_avx2_eligible,.-ecp_nistz_avx2_eligible
-___
-}}
-
-foreach (split("\n",$code)) {
- s/\`([^\`]*)\`/eval($1)/geo;
-
- print $_,"\n";
-}
-
-close STDOUT or die "error closing STDOUT: $!";
diff --git a/crypto/ec/ecp_nistz256.c b/crypto/ec/ecp_nistz256.c
index ba92681388..5005249b05 100644
--- a/crypto/ec/ecp_nistz256.c
+++ b/crypto/ec/ecp_nistz256.c
@@ -929,207 +929,6 @@ __owur static int ecp_nistz256_mult_precompute(EC_GROUP *group, BN_CTX *ctx)
return ret;
}
-/*
- * Note that by default ECP_NISTZ256_AVX2 is undefined. While it's great
- * code processing 4 points in parallel, corresponding serial operation
- * is several times slower, because it uses 29x29=58-bit multiplication
- * as opposite to 64x64=128-bit in integer-only scalar case. As result
- * it doesn't provide *significant* performance improvement. Note that
- * just defining ECP_NISTZ256_AVX2 is not sufficient to make it work,
- * you'd need to compile even asm/ecp_nistz256-avx.pl module.
- */
-#if defined(ECP_NISTZ256_AVX2)
-# if !(defined(__x86_64) || defined(__x86_64__) || \
- defined(_M_AMD64) || defined(_M_X64)) || \
- !(defined(__GNUC__) || defined(_MSC_VER)) /* this is for ALIGN32 */
-# undef ECP_NISTZ256_AVX2
-# else
-/* Constant time access, loading four values, from four consecutive tables */
-void ecp_nistz256_avx2_multi_gather_w7(void *result, const void *in,
- int index0, int index1, int index2,
- int index3);
-void ecp_nistz256_avx2_transpose_convert(void *RESULTx4, const void *in);
-void ecp_nistz256_avx2_convert_transpose_back(void *result, const void *Ax4);
-void ecp_nistz256_avx2_point_add_affine_x4(void *RESULTx4, const void *Ax4,
- const void *Bx4);
-void ecp_nistz256_avx2_point_add_affines_x4(void *RESULTx4, const void *Ax4,
- const void *Bx4);
-void ecp_nistz256_avx2_to_mont(void *RESULTx4, const void *Ax4);
-void ecp_nistz256_avx2_from_mont(void *RESULTx4, const void *Ax4);
-void ecp_nistz256_avx2_set1(void *RESULTx4);
-int ecp_nistz_avx2_eligible(void);
-
-static void booth_recode_w7(unsigned char *sign,
- unsigned char *digit, unsigned char in)
-{
- unsigned char s, d;
-
- s = ~((in >> 7) - 1);
- d = (1 << 8) - in - 1;
- d = (d & s) | (in & ~s);
- d = (d >> 1) + (d & 1);
-
- *sign = s & 1;
- *digit = d;
-}
-
-/*
- * ecp_nistz256_avx2_mul_g performs multiplication by G, using only the
- * precomputed table. It does 4 affine point additions in parallel,
- * significantly speeding up point multiplication for a fixed value.
- */
-static void ecp_nistz256_avx2_mul_g(P256_POINT *r,
- unsigned char p_str[33],
- const P256_POINT_AFFINE(*preComputedTable)[64])
-{
- const unsigned int window_size = 7;
- const unsigned int mask = (1 << (window_size + 1)) - 1;
- unsigned int wvalue;
- /* Using 4 windows at a time */
- unsigned char sign0, digit0;
- unsigned char sign1, digit1;
- unsigned char sign2, digit2;
- unsigned char sign3, digit3;
- unsigned int idx = 0;
- BN_ULONG tmp[P256_LIMBS];
- int i;
-
- ALIGN32 BN_ULONG aX4[4 * 9 * 3] = { 0 };
- ALIGN32 BN_ULONG bX4[4 * 9 * 2] = { 0 };
- ALIGN32 P256_POINT_AFFINE point_arr[4];
- ALIGN32 P256_POINT res_point_arr[4];
-
- /* Initial four windows */
- wvalue = *((u16 *) & p_str[0]);
- wvalue = (wvalue << 1) & mask;
- idx += window_size;
- booth_recode_w7(&sign0, &digit0, wvalue);
- wvalue = *((u16 *) & p_str[(idx - 1) / 8]);
- wvalue = (wvalue >> ((idx - 1) % 8)) & mask;
- idx += window_size;
- booth_recode_w7(&sign1, &digit1, wvalue);
- wvalue = *((u16 *) & p_str[(idx - 1) / 8]);
- wvalue = (wvalue >> ((idx - 1) % 8)) & mask;
- idx += window_size;
- booth_recode_w7(&sign2, &digit2, wvalue);
- wvalue = *((u16 *) & p_str[(idx - 1) / 8]);
- wvalue = (wvalue >> ((idx - 1) % 8)) & mask;
- idx += window_size;
- booth_recode_w7(&sign3, &digit3, wvalue);
-
- ecp_nistz256_avx2_multi_gather_w7(point_arr, preComputedTable[0],
- digit0, digit1, digit2, digit3);
-
- ecp_nistz256_neg(tmp, point_arr[0].Y);
- copy_conditional(point_arr[0].Y, tmp, sign0);
- ecp_nistz256_neg(tmp, point_arr[1].Y);
- copy_conditional(point_arr[1].Y, tmp, sign1);
- ecp_nistz256_neg(tmp, point_arr[2].Y);
- copy_conditional(point_arr[2].Y, tmp, sign2);
- ecp_nistz256_neg(tmp, point_arr[3].Y);
- copy_conditional(point_arr[3].Y, tmp, sign3);
-
- ecp_nistz256_avx2_transpose_convert(aX4, point_arr);
- ecp_nistz256_avx2_to_mont(aX4, aX4);
- ecp_nistz256_avx2_to_mont(&aX4[4 * 9], &aX4[4 * 9]);
- ecp_nistz256_avx2_set1(&aX4[4 * 9 * 2]);
-
- wvalue = *((u16 *) & p_str[(idx - 1) / 8]);
- wvalue = (wvalue >> ((idx - 1) % 8)) & mask;
- idx += window_size;
- booth_recode_w7(&sign0, &digit0, wvalue);
- wvalue = *((u16 *) & p_str[(idx - 1) / 8]);
- wvalue = (wvalue >> ((idx - 1) % 8)) & mask;
- idx += window_size;
- booth_recode_w7(&sign1, &digit1, wvalue);
- wvalue = *((u16 *) & p_str[(idx - 1) / 8]);
- wvalue = (wvalue >> ((idx - 1) % 8)) & mask;
- idx += window_size;
- booth_recode_w7(&sign2, &digit2, wvalue);
- wvalue = *((u16 *) & p_str[(idx - 1) / 8]);
- wvalue = (wvalue >> ((idx - 1) % 8)) & mask;
- idx += window_size;
- booth_recode_w7(&sign3, &digit3, wvalue);
-
- ecp_nistz256_avx2_multi_gather_w7(point_arr, preComputedTable[4 * 1],
- digit0, digit1, digit2, digit3);
-
- ecp_nistz256_neg(tmp, point_arr[0].Y);
- copy_conditional(point_arr[0].Y, tmp, sign0);
- ecp_nistz256_neg(tmp, point_arr[1].Y);
- copy_conditional(point_arr[1].Y, tmp, sign1);
- ecp_nistz256_neg(tmp, point_arr[2].Y);
- copy_conditional(point_arr[2].Y, tmp, sign2);
- ecp_nistz256_neg(tmp, point_arr[3].Y);
- copy_conditional(point_arr[3].Y, tmp, sign3);
-
- ecp_nistz256_avx2_transpose_convert(bX4, point_arr);
- ecp_nistz256_avx2_to_mont(bX4, bX4);
- ecp_nistz256_avx2_to_mont(&bX4[4 * 9], &bX4[4 * 9]);
- /* Optimized when both inputs are affine */
- ecp_nistz256_avx2_point_add_affines_x4(aX4, aX4, bX4);
-
- for (i = 2; i < 9; i++) {
- wvalue = *((u16 *) & p_str[(idx - 1) / 8]);
- wvalue = (wvalue >> ((idx - 1) % 8)) & mask;
- idx += window_size;
- booth_recode_w7(&sign0, &digit0, wvalue);
- wvalue = *((u16 *) & p_str[(idx - 1) / 8]);
- wvalue = (wvalue >> ((idx - 1) % 8)) & mask;
- idx += window_size;
- booth_recode_w7(&sign1, &digit1, wvalue);
- wvalue = *((u16 *) & p_str[(idx - 1) / 8]);
- wvalue = (wvalue >> ((idx - 1) % 8)) & mask;
- idx += window_size;
- booth_recode_w7(&sign2, &digit2, wvalue);
- wvalue = *((u16 *) & p_str[(idx - 1) / 8]);
- wvalue = (wvalue >> ((idx - 1) % 8)) & mask;
- idx += window_size;
- booth_recode_w7(&sign3, &digit3, wvalue);
-
- ecp_nistz256_avx2_multi_gather_w7(point_arr,
- preComputedTable[4 * i],
- digit0, digit1, digit2, digit3);
-
- ecp_nistz256_neg(tmp, point_arr[0].Y);
- copy_conditional(point_arr[0].Y, tmp, sign0);
- ecp_nistz256_neg(tmp, point_arr[1].Y);
- copy_conditional(point_arr[1].Y, tmp, sign1);
- ecp_nistz256_neg(tmp, point_arr[2].Y);
- copy_conditional(point_arr[2].Y, tmp, sign2);
- ecp_nistz256_neg(tmp, point_arr[3].Y);
- copy_conditional(point_arr[3].Y, tmp, sign3);
-
- ecp_nistz256_avx2_transpose_convert(bX4, point_arr);
- ecp_nistz256_avx2_to_mont(bX4, bX4);
- ecp_nistz256_avx2_to_mont(&bX4[4 * 9], &bX4[4 * 9]);
-
- ecp_nistz256_avx2_point_add_affine_x4(aX4, aX4, bX4);
- }
-
- ecp_nistz256_avx2_from_mont(&aX4[4 * 9 * 0], &aX4[4 * 9 * 0]);
- ecp_nistz256_avx2_from_mont(&aX4[4 * 9 * 1], &aX4[4 * 9 * 1]);
- ecp_nistz256_avx2_from_mont(&aX4[4 * 9 * 2], &aX4[4 * 9 * 2]);
-
- ecp_nistz256_avx2_convert_transpose_back(res_point_arr, aX4);
- /* Last window is performed serially */
- wvalue = *((u16 *) & p_str[(idx - 1) / 8]);
- wvalue = (wvalue >> ((idx - 1) % 8)) & mask;
- booth_recode_w7(&sign0, &digit0, wvalue);
- ecp_nistz256_gather_w7((P256_POINT_AFFINE *)r,
- preComputedTable[36], digit0);
- ecp_nistz256_neg(tmp, r->Y);
- copy_conditional(r->Y, tmp, sign0);
- memcpy(r->Z, ONE, sizeof(ONE));
- /* Sum the four windows */
- ecp_nistz256_point_add(r, r, &res_point_arr[0]);
- ecp_nistz256_point_add(r, r, &res_point_arr[1]);
- ecp_nistz256_point_add(r, r, &res_point_arr[2]);
- ecp_nistz256_point_add(r, r, &res_point_arr[3]);
-}
-# endif
-#endif
-
__owur static int ecp_nistz256_set_from_affine(EC_POINT *out, const EC_GROUP *group,
const P256_POINT_AFFINE *in,
BN_CTX *ctx)
@@ -1219,6 +1018,8 @@ __owur static int ecp_nistz256_points_mul(const EC_GROUP *group,
}
if (preComputedTable) {
+ BN_ULONG infty;
+
if ((BN_num_bits(scalar) > 256)
|| BN_is_negative(scalar)) {
if ((tmp_scalar = BN_CTX_get(ctx)) == NULL)
@@ -1250,67 +1051,58 @@ __owur static int ecp_nistz256_points_mul(const EC_GROUP *group,
for (; i < 33; i++)
p_str[i] = 0;
-#if defined(ECP_NISTZ256_AVX2)
- if (ecp_nistz_avx2_eligible()) {
- ecp_nistz256_avx2_mul_g(&p.p, p_str, preComputedTable);
- } else
-#endif
- {
- BN_ULONG infty;
+ /* First window */
+ wvalue = (p_str[0] << 1) & mask;
+ idx += window_size;
- /* First window */
- wvalue = (p_str[0] << 1) & mask;
- idx += window_size;
+ wvalue = _booth_recode_w7(wvalue);
- wvalue = _booth_recode_w7(wvalue);
+ ecp_nistz256_gather_w7(&p.a, preComputedTable[0],
+ wvalue >> 1);
- ecp_nistz256_gather_w7(&p.a, preComputedTable[0],
- wvalue >> 1);
-
- ecp_nistz256_neg(p.p.Z, p.p.Y);
- copy_conditional(p.p.Y, p.p.Z, wvalue & 1);
-
- /*
- * Since affine infinity is encoded as (0,0) and
- * Jacobian ias (,,0), we need to harmonize them
- * by assigning "one" or zero to Z.
- */
- infty = (p.p.X[0] | p.p.X[1] | p.p.X[2] | p.p.X[3] |
- p.p.Y[0] | p.p.Y[1] | p.p.Y[2] | p.p.Y[3]);
- if (P256_LIMBS == 8)
- infty |= (p.p.X[4] | p.p.X[5] | p.p.X[6] | p.p.X[7] |
- p.p.Y[4] | p.p.Y[5] | p.p.Y[6] | p.p.Y[7]);
-
- infty = 0 - is_zero(infty);
- infty = ~infty;
-
- p.p.Z[0] = ONE[0] & infty;
- p.p.Z[1] = ONE[1] & infty;
- p.p.Z[2] = ONE[2] & infty;
- p.p.Z[3] = ONE[3] & infty;
- if (P256_LIMBS == 8) {
- p.p.Z[4] = ONE[4] & infty;
- p.p.Z[5] = ONE[5] & infty;
- p.p.Z[6] = ONE[6] & infty;
- p.p.Z[7] = ONE[7] & infty;
- }
+ ecp_nistz256_neg(p.p.Z, p.p.Y);
+ copy_conditional(p.p.Y, p.p.Z, wvalue & 1);
- for (i = 1; i < 37; i++) {
- unsigned int off = (idx - 1) / 8;
- wvalue = p_str[off] | p_str[off + 1] << 8;
- wvalue = (wvalue >> ((idx - 1) % 8)) & mask;
- idx += window_size;
+ /*
+ * Since affine infinity is encoded as (0,0) and
+ * Jacobian is (,,0), we need to harmonize them
+ * by assigning "one" or zero to Z.
+ */
+ infty = (p.p.X[0] | p.p.X[1] | p.p.X[2] | p.p.X[3] |
+ p.p.Y[0] | p.p.Y[1] | p.p.Y[2] | p.p.Y[3]);
+ if (P256_LIMBS == 8)
+ infty |= (p.p.X[4] | p.p.X[5] | p.p.X[6] | p.p.X[7] |
+ p.p.Y[4] | p.p.Y[5] | p.p.Y[6] | p.p.Y[7]);
+
+ infty = 0 - is_zero(infty);
+ infty = ~infty;
+
+ p.p.Z[0] = ONE[0] & infty;
+ p.p.Z[1] = ONE[1] & infty;
+ p.p.Z[2] = ONE[2] & infty;
+ p.p.Z[3] = ONE[3] & infty;
+ if (P256_LIMBS == 8) {
+ p.p.Z[4] = ONE[4] & infty;
+ p.p.Z[5] = ONE[5] & infty;
+ p.p.Z[6] = ONE[6] & infty;
+ p.p.Z[7] = ONE[7] & infty;
+ }
- wvalue = _booth_recode_w7(wvalue);
+ for (i = 1; i < 37; i++) {
+ unsigned int off = (idx - 1) / 8;
+ wvalue = p_str[off] | p_str[off + 1] << 8;
+ wvalue = (wvalue >> ((idx - 1) % 8)) & mask;
+ idx += window_size;
- ecp_nistz256_gather_w7(&t.a,
- preComputedTable[i], wvalue >> 1);
+ wvalue = _booth_recode_w7(wvalue);
- ecp_nistz256_neg(t.p.Z, t.a.Y);
- copy_conditional(t.a.Y, t.p.Z, wvalue & 1);
+ ecp_nistz256_gather_w7(&t.a,
+ preComputedTable[i], wvalue >> 1);
- ecp_nistz256_point_add_affine(&p.p, &p.p, &t.a);
- }
+ ecp_nistz256_neg(t.p.Z, t.a.Y);
+ copy_conditional(t.a.Y, t.p.Z, wvalue & 1);
+
+ ecp_nistz256_point_add_affine(&p.p, &p.p, &t.a);
}
} else {
p_is_infinity = 1;
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