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| author | Denys Vlasenko | 2019-01-01 15:40:43 +0100 |
|---|---|---|
| committer | Denys Vlasenko | 2019-01-01 15:40:43 +0100 |
| commit | 37bdd8f8cb19b674485be1dec6e8ac96d930c87f (patch) | |
| tree | fe87b58c5a4c0e5600a14f7ede335c747344f85d /networking/tls_pstm_montgomery_reduce.c | |
| parent | 51b510a480b99d480bcf6919b8bae16eb1c61718 (diff) | |
| download | busybox-37bdd8f8cb19b674485be1dec6e8ac96d930c87f.zip busybox-37bdd8f8cb19b674485be1dec6e8ac96d930c87f.tar.gz | |
tls: pstm code shrink
Optimize ABI calling convention and "dead code" cases where return value
is known to be always "success".
function old new delta
pstm_mod 113 1227 +1114
pstm_exptmod 1463 1532 +69
pstm_montgomery_reduce 381 393 +12
pstm_sqr_comba 478 487 +9
pstm_mul_comba 447 452 +5
der_binary_to_pstm 42 45 +3
pstm_count_bits 48 46 -2
pstm_clear 72 70 -2
pstm_clamp 57 55 -2
pstm_zero 38 34 -4
pstm_init_size 46 42 -4
pstm_init_for_read_unsigned_bin 24 20 -4
pstm_grow 72 68 -4
pstm_unsigned_bin_size 37 32 -5
pstm_cmp_mag 78 72 -6
pstm_copy 92 84 -8
pstm_mul_d 224 215 -9
pstm_rshd 104 94 -10
pstm_mul_2 156 146 -10
tls_handshake 2085 2072 -13
psRsaEncryptPub 421 408 -13
pstm_lshd 109 95 -14
pstm_cmp 54 39 -15
s_pstm_sub 228 212 -16
pstm_init_copy 72 52 -20
pstm_read_unsigned_bin 109 88 -21
pstm_mulmod 120 99 -21
s_pstm_add 337 314 -23
pstm_add 108 84 -24
pstm_mul_2d 186 161 -25
pstm_sub 102 74 -28
pstm_to_unsigned_bin 151 120 -31
pstm_set 34 - -34
pstm_div_2d 409 373 -36
pstm_init 42 - -42
pstm_exch 50 - -50
pstm_montgomery_setup 89 - -89
pstm_2expt 96 - -96
pstm_montgomery_calc_normalization 140 - -140
pstm_div 1522 - -1522
------------------------------------------------------------------------------
(add/remove: 0/7 grow/shrink: 6/27 up/down: 1212/-2343) Total: -1131 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'networking/tls_pstm_montgomery_reduce.c')
| -rw-r--r-- | networking/tls_pstm_montgomery_reduce.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/networking/tls_pstm_montgomery_reduce.c b/networking/tls_pstm_montgomery_reduce.c index 3391755..d46e2aa 100644 --- a/networking/tls_pstm_montgomery_reduce.c +++ b/networking/tls_pstm_montgomery_reduce.c @@ -340,7 +340,7 @@ asm( \ #define LO 0 /* computes x/R == x (mod N) via Montgomery Reduction */ -int32 pstm_montgomery_reduce(psPool_t *pool, pstm_int *a, pstm_int *m, +int32 FAST_FUNC pstm_montgomery_reduce(psPool_t *pool, pstm_int *a, pstm_int *m, pstm_digit mp, pstm_digit *paD, uint32 paDlen) { pstm_digit *c, *_c, *tmpm, mu; |