7 Commits

Author	SHA1	Message	Date
Jeffrey Walton	babdf8b38b	Add XOP aware CHAM and LEA	2018-10-24 17:12:03 -04:00
Jeffrey Walton	ed4d57cecb	Add XOP aware ChaCha ... ChaCha is about 50% faster using XOP for the rotates on AMD machines	2018-10-24 16:15:13 -04:00
Jeffrey Walton	b4c4c5aa14	Add SSSE3 rotates when available ... This change obtains the remaining 0.1 to 0.15 cpb. It should be engaged with -march=native	2018-10-24 15:34:54 -04:00
Jeffrey Walton	18dcbdf514	Move input xor to ChaCha_OperateKeystream_SSE2 ... This picks up about 0.2 cpb in ChaCha::OperateKeystream. It may not sound like much but it puts SSE2 intrinsics version on par with the ASM version of Salsa20. Salsa20 leads ChaCha by 0.1 to 0.15 cpb, which equates to about 50 MB/s.	2018-10-24 11:00:35 -04:00
Jeffrey Walton	d230999b40	Fix ChaCha compile on ARM and MIPS	2018-10-24 01:11:45 -04:00
Jeffrey Walton	6a5d2ab03d	Remove unneeded params from ChaCha_OperateKeystream_SSE2	2018-10-23 08:52:29 -04:00
Jeffrey Walton	916c4484a2	Add ChaCha SSE2 implementation ... Thanks to Jack Lloyd and Botan for allowing us to use the implementation. The numbers for SSE2 are very good. When compared with Salsa20 ASM the results are: * Salsa20 2.55 cpb; ChaCha/20 2.90 cpb * Salsa20/12 1.61 cpb; ChaCha/12 1.90 cpb * Salsa20/8 1.34 cpb; ChaCha/8 1.5 cpb	2018-10-23 07:57:59 -04:00