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Faster ff arithmetics (regenerated code with the newest goff) (#43)

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Oleksandr Brezhniev
2021-12-28 20:47:12 +02:00
committed by GitHub
parent f597e20569
commit 69354ae29c
17 changed files with 4251 additions and 775 deletions
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66
ff/arith.go
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@@ -1,4 +1,4 @@
// Copyright 2020 ConsenSys AG
// Copyright 2020 ConsenSys Software Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
@@ -12,7 +12,7 @@
// See the License for the specific language governing permissions and
// limitations under the License.
// Code generated by goff DO NOT EDIT
// Code generated by consensys/gnark-crypto DO NOT EDIT
package ff
@@ -20,15 +20,6 @@ import (
"math/bits"
)
func madd(a, b, t, u, v uint64) (uint64, uint64, uint64) {
var carry uint64
hi, lo := bits.Mul64(a, b)
v, carry = bits.Add64(lo, v, 0)
u, carry = bits.Add64(hi, u, carry)
t, _ = bits.Add64(t, 0, carry)
return t, u, v
}
// madd0 hi = a*b + c (discards lo bits)
func madd0(a, b, c uint64) (hi uint64) {
var carry, lo uint64
@@ -58,59 +49,6 @@ func madd2(a, b, c, d uint64) (hi uint64, lo uint64) {
return
}
// madd2s superhi, hi, lo = 2*a*b + c + d + e
func madd2s(a, b, c, d, e uint64) (superhi, hi, lo uint64) {
var carry, sum uint64
hi, lo = bits.Mul64(a, b)
lo, carry = bits.Add64(lo, lo, 0)
hi, superhi = bits.Add64(hi, hi, carry)
sum, carry = bits.Add64(c, e, 0)
hi, _ = bits.Add64(hi, 0, carry)
lo, carry = bits.Add64(lo, sum, 0)
hi, _ = bits.Add64(hi, 0, carry)
hi, _ = bits.Add64(hi, 0, d)
return
}
func madd1s(a, b, d, e uint64) (superhi, hi, lo uint64) {
var carry uint64
hi, lo = bits.Mul64(a, b)
lo, carry = bits.Add64(lo, lo, 0)
hi, superhi = bits.Add64(hi, hi, carry)
lo, carry = bits.Add64(lo, e, 0)
hi, _ = bits.Add64(hi, 0, carry)
hi, _ = bits.Add64(hi, 0, d)
return
}
func madd2sb(a, b, c, e uint64) (superhi, hi, lo uint64) {
var carry, sum uint64
hi, lo = bits.Mul64(a, b)
lo, carry = bits.Add64(lo, lo, 0)
hi, superhi = bits.Add64(hi, hi, carry)
sum, carry = bits.Add64(c, e, 0)
hi, _ = bits.Add64(hi, 0, carry)
lo, carry = bits.Add64(lo, sum, 0)
hi, _ = bits.Add64(hi, 0, carry)
return
}
func madd1sb(a, b, e uint64) (superhi, hi, lo uint64) {
var carry uint64
hi, lo = bits.Mul64(a, b)
lo, carry = bits.Add64(lo, lo, 0)
hi, superhi = bits.Add64(hi, hi, carry)
lo, carry = bits.Add64(lo, e, 0)
hi, _ = bits.Add64(hi, 0, carry)
return
}
func madd3(a, b, c, d, e uint64) (hi uint64, lo uint64) {
var carry uint64
hi, lo = bits.Mul64(a, b)