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ircd::b64: Use standard alignas().

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This commit is contained in:
Jason Volk 2020-08-12 02:55:35 -07:00
parent b5ced28b88
commit c8deea2e8b
2 changed files with 12 additions and 6 deletions
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8
include/ircd/b64.h
View file

@ -17,12 +17,12 @@ namespace ircd::b64
IRCD_EXCEPTION(error, invalid_encoding)
using dictionary_element = int;
using dictionary = [[aligned(64)]] dictionary_element[64];
using dictionary = dictionary_element[64];
extern const dictionary
dict_rfc1421, // [62] = '+', [63] = '/'
dict_rfc3501, // [62] = '+', [63] = ','
dict_rfc4648; // [62] = '-', [63] = '_'
dict_rfc1421, // [62] = '+', [63] = '/'
dict_rfc3501, // [62] = '+', [63] = ','
dict_rfc4648; // [62] = '-', [63] = '_'
static const auto
&standard { dict_rfc1421 },

10
ircd/b64.cc
View file

@ -16,14 +16,12 @@ namespace ircd::b64
'='
};
[[gnu::aligned(64)]]
extern const u8
encode_permute_tab[64],
encode_shift_ctrl[64],
decode_permute_tab[64],
decode_permute_tab_le[64];
[[gnu::aligned(64)]]
extern const i32
decode_tab[256];
@ -36,6 +34,7 @@ namespace ircd::b64
decltype(ircd::b64::dict_rfc1421)
ircd::b64::dict_rfc1421
alignas(64)
{
'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P',
'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', 'a', 'b', 'c', 'd', 'e', 'f',
@ -45,6 +44,7 @@ ircd::b64::dict_rfc1421
decltype(ircd::b64::dict_rfc3501)
ircd::b64::dict_rfc3501
alignas(64)
{
'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P',
'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', 'a', 'b', 'c', 'd', 'e', 'f',
@ -54,6 +54,7 @@ ircd::b64::dict_rfc3501
decltype(ircd::b64::dict_rfc4648)
ircd::b64::dict_rfc4648
alignas(64)
{
'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P',
'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', 'a', 'b', 'c', 'd', 'e', 'f',
@ -63,6 +64,7 @@ ircd::b64::dict_rfc4648
decltype(ircd::b64::decode_tab)
ircd::b64::decode_tab
alignas(64)
{
0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, // 7
0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, // 15
@ -100,6 +102,7 @@ ircd::b64::decode_tab
decltype(ircd::b64::decode_permute_tab)
ircd::b64::decode_permute_tab
alignas(64)
{
6, 0, 1, 2, 9, 10, 4, 5, 12, 13, 14, 8, 22, 16, 17, 18,
25, 26, 20, 21, 28, 29, 30, 24, 38, 32, 33, 34, 41, 42, 36, 37,
@ -110,6 +113,7 @@ ircd::b64::decode_permute_tab
/// byte-order swapped for each 32-bit word from above
decltype(ircd::b64::decode_permute_tab_le)
ircd::b64::decode_permute_tab_le
alignas(64)
{
2, 1, 0, 6, 5, 4, 10, 9, 8, 14, 13, 12, 18, 17, 16, 22,
21, 20, 26, 25, 24, 30, 29, 28, 34, 33, 32, 38, 37, 36, 42, 41,
@ -120,6 +124,7 @@ ircd::b64::decode_permute_tab_le
/// For vpermb
decltype(ircd::b64::encode_permute_tab)
ircd::b64::encode_permute_tab
alignas(64)
{
0 + 1, 0 + 0, 0 + 2, 0 + 1, 3 + 1, 3 + 0, 3 + 2, 3 + 1,
6 + 1, 6 + 0, 6 + 2, 6 + 1, 9 + 1, 9 + 0, 9 + 2, 9 + 1,
@ -134,6 +139,7 @@ ircd::b64::encode_permute_tab
/// For vpmultishiftqb
decltype(ircd::b64::encode_shift_ctrl)
ircd::b64::encode_shift_ctrl
alignas(64)
{
(10 + 0), ( 4 + 0), (22 + 0), (16 + 0), (10 + 32), ( 4 + 32), (22 + 32), (16 + 32),
(10 + 0), ( 4 + 0), (22 + 0), (16 + 0), (10 + 32), ( 4 + 32), (22 + 32), (16 + 32),