diff options
| author | Andy Polyakov <appro@openssl.org> | 2011-05-23 08:14:32 +0000 |
|---|---|---|
| committer | Andy Polyakov <appro@openssl.org> | 2011-05-23 08:14:32 +0000 |
| commit | 62f29eb1cf7957b4eb9ad60eccfe1e11bbac94ce (patch) | |
| tree | c6b5ffebe8ee276fe1d21cd92b55b375b0f57a6d /crypto | |
| parent | f8501464cc8fd8b7b4983462944a1894b157d735 (diff) | |
spacrv9cap.c: addenum to recent EC optimizations.
Diffstat (limited to 'crypto')
| -rw-r--r-- | crypto/ec/ec_cvt.c | 4 | ||||
| -rw-r--r-- | crypto/sparcv9cap.c | 3 |
2 files changed, 4 insertions, 3 deletions
diff --git a/crypto/ec/ec_cvt.c b/crypto/ec/ec_cvt.c index dffd70521a..58d6b4cadd 100644 --- a/crypto/ec/ec_cvt.c +++ b/crypto/ec/ec_cvt.c @@ -80,7 +80,7 @@ EC_GROUP *EC_GROUP_new_curve_GFp(const BIGNUM *p, const BIGNUM *a, const BIGNUM const EC_METHOD *meth; EC_GROUP *ret; -#if defined(OPENSSL_BN_ASM_MONT) && !defined(__sparc) +#if defined(OPENSSL_BN_ASM_MONT) /* * This might appear controversial, but the fact is that generic * prime method was observed to deliver better performance even @@ -93,7 +93,7 @@ EC_GROUP *EC_GROUP_new_curve_GFp(const BIGNUM *p, const BIGNUM *a, const BIGNUM * arguable, because the dependency of improvement coefficient * from key length is not a "monotone" curve. For example while * 571-bit result is 23% on ARM, 384-bit one is -1%. But it's - * generally faster, sometimes "respectfully" faster, or + * generally faster, sometimes "respectfully" faster, sometimes * "tolerably" slower... What effectively happens is that loop * with bn_mul_add_words is put against bn_mul_mont, and the * latter "wins" on short vectors. Correct solution should be diff --git a/crypto/sparcv9cap.c b/crypto/sparcv9cap.c index ad4b3be718..b961cbe3fa 100644 --- a/crypto/sparcv9cap.c +++ b/crypto/sparcv9cap.c @@ -20,7 +20,8 @@ int bn_mul_mont(BN_ULONG *rp, const BN_ULONG *ap, const BN_ULONG *bp, const BN_U int bn_mul_mont_fpu(BN_ULONG *rp, const BN_ULONG *ap, const BN_ULONG *bp, const BN_ULONG *np,const BN_ULONG *n0, int num); int bn_mul_mont_int(BN_ULONG *rp, const BN_ULONG *ap, const BN_ULONG *bp, const BN_ULONG *np,const BN_ULONG *n0, int num); - if ((OPENSSL_sparcv9cap_P&(SPARCV9_PREFER_FPU|SPARCV9_VIS1)) == + if (num>=8 && !(num&1) && + (OPENSSL_sparcv9cap_P&(SPARCV9_PREFER_FPU|SPARCV9_VIS1)) == (SPARCV9_PREFER_FPU|SPARCV9_VIS1)) return bn_mul_mont_fpu(rp,ap,bp,np,n0,num); else |