github.com/consensys/gnark-crypto@v0.14.0/ecc/bls24-315/internal/fptower/e2_amd64.go (about)

     1  // Copyright 2020 ConsenSys Software Inc.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package fptower
    16  
    17  //go:noescape
    18  func addE2(res, x, y *E2)
    19  
    20  //go:noescape
    21  func subE2(res, x, y *E2)
    22  
    23  //go:noescape
    24  func doubleE2(res, x *E2)
    25  
    26  //go:noescape
    27  func negE2(res, x *E2)
    28  
    29  //go:noescape
    30  func mulNonResE2(res, x *E2)
    31  
    32  //go:noescape
    33  func mulAdxE2(res, x, y *E2)
    34  
    35  // MulByNonResidue multiplies a E2 by (0,1)
    36  func (z *E2) MulByNonResidue(x *E2) *E2 {
    37  	mulNonResE2(z, x)
    38  	return z
    39  }
    40  
    41  // Mul sets z to the E2-product of x,y, returns z
    42  func (z *E2) Mul(x, y *E2) *E2 {
    43  	mulAdxE2(z, x, y)
    44  	return z
    45  }