saymrwulf/curve25519-dalek-source
1
0
Fork 0
mirror of https://github.com/saymrwulf/curve25519-dalek-source.git synced 2026-09-04 20:24:10 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

Merge pull request #136 from dalek-cryptography/fix-avx2-build

Browse source 
Fix AVX2 build on recent nightlies (was broken due to type inference failure)
This commit is contained in:
Henry de Valence 2018-05-03 13:53:20 -07:00 committed by GitHub
commit 9375405f20
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
1 changed files with 4 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

6
src/backend/avx2/edwards.rs
View file

@ -149,8 +149,10 @@ impl ExtendedPoint {
// tmp0 = (0 0 2*S3 -S4)
let tmp0: u32x8 = _mm256_blend_epi32(S3_2.into_bits(), t1.0[i].into_bits(), 0b10100000).into_bits();
t0.0[i] = (avx2::constants::P_TIMES_2_MASKED.0[i] + tmp0) + S1;
t0.0[i] = t0.0[i] + _mm256_blend_epi32(zero, S2.into_bits(), 0b10100101).into_bits();
t0.0[i] = t0.0[i] - _mm256_blend_epi32(S2.into_bits(), zero, 0b10100101).into_bits();
let S2_pos: u32x8 = _mm256_blend_epi32(zero, S2.into_bits(), 0b10100101).into_bits();
let S2_neg: u32x8 = _mm256_blend_epi32(S2.into_bits(), zero, 0b10100101).into_bits();
t0.0[i] = t0.0[i] + S2_pos;
t0.0[i] = t0.0[i] - S2_neg;
}
let c0 = u32x8::new(4,0,6,2,4,0,6,2).into_bits(); // (ABCD) -> (CACA)