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authorTorbjorn Granlund <tege@gmplib.org>2009-12-27 00:25:58 +0100
committerTorbjorn Granlund <tege@gmplib.org>2009-12-27 00:25:58 +0100
commit18e37e7efdb72d99ec5a2bfe953dd0302c92aebd (patch)
tree15c266f5753dc037dbf075c21ddb11aca7860c9b /gmp-impl.h
parent776e0d3ff6fd1e33993f6553f4eeab4d0be55346 (diff)
downloadgmp-18e37e7efdb72d99ec5a2bfe953dd0302c92aebd.tar.gz
Tune BMOD_1_TO_MOD_1_THRESHOLD instead of MODEXACT_1_ODD_THRESHOLD.
Diffstat (limited to 'gmp-impl.h')
-rw-r--r--gmp-impl.h11
1 files changed, 5 insertions, 6 deletions
diff --git a/gmp-impl.h b/gmp-impl.h
index f74ec545b..a7d32933d 100644
--- a/gmp-impl.h
+++ b/gmp-impl.h
@@ -591,7 +591,6 @@ __GMP_DECLSPEC void __gmp_tmp_debug_free __GMP_PROTO ((const char *, int, int,
#undef USE_PREINV_DIVREM_1
#undef DIVREM_2_THRESHOLD
#undef DIVEXACT_1_THRESHOLD
-#undef MODEXACT_1_ODD_THRESHOLD
#define DIVREM_1_NORM_THRESHOLD MP_SIZE_T_MAX /* no preinv */
#define DIVREM_1_UNNORM_THRESHOLD MP_SIZE_T_MAX /* no preinv */
#define MOD_1_NORM_THRESHOLD MP_SIZE_T_MAX /* no preinv */
@@ -2816,15 +2815,15 @@ __GMP_DECLSPEC mp_limb_t mpn_mod_34lsub1 __GMP_PROTO ((mp_srcptr, mp_size_t)) __
/* DIVEXACT_1_THRESHOLD is at what size to use mpn_divexact_1, as opposed to
- plain mpn_divrem_1. Likewise MODEXACT_1_ODD_THRESHOLD for
+ plain mpn_divrem_1. Likewise BMOD_1_TO_MOD_1_THRESHOLD for
mpn_modexact_1_odd against plain mpn_mod_1. On most CPUs divexact and
modexact are faster at all sizes, so the defaults are 0. Those CPUs
where this is not right have a tuned threshold. */
#ifndef DIVEXACT_1_THRESHOLD
#define DIVEXACT_1_THRESHOLD 0
#endif
-#ifndef MODEXACT_1_ODD_THRESHOLD
-#define MODEXACT_1_ODD_THRESHOLD 0
+#ifndef BMOD_1_TO_MOD_1_THRESHOLD
+#define BMOD_1_TO_MOD_1_THRESHOLD 10
#endif
#ifndef mpn_divexact_1 /* if not done with cpuvec in a fat binary */
@@ -2857,7 +2856,7 @@ __GMP_DECLSPEC mp_limb_t mpn_modexact_1_odd __GMP_PROTO ((mp_srcptr, mp_size_t,
#endif
#define MPN_MOD_OR_MODEXACT_1_ODD(src,size,divisor) \
- (ABOVE_THRESHOLD (size, MODEXACT_1_ODD_THRESHOLD) \
+ (BELOW_THRESHOLD (size, BMOD_1_TO_MOD_1_THRESHOLD) \
? mpn_modexact_1_odd (src, size, divisor) \
: mpn_mod_1 (src, size, divisor))
@@ -3675,7 +3674,7 @@ __GMP_DECLSPEC void __gmp_invalid_operation __GMP_PROTO ((void)) ATTRIBUTE_NORET
ASSERT (__b & 1); \
\
if ((GMP_NUMB_BITS % 2) != 0 \
- || BELOW_THRESHOLD (__a_size, MODEXACT_1_ODD_THRESHOLD)) \
+ || ABOVE_THRESHOLD (__a_size, BMOD_1_TO_MOD_1_THRESHOLD)) \
{ \
(a_rem) = mpn_mod_1 (__a_ptr, __a_size, __b); \
} \