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| author | Marco Bodrato <bodrato@mail.dm.unipi.it> | 2019-11-16 08:48:59 +0100 |
|---|---|---|
| committer | Marco Bodrato <bodrato@mail.dm.unipi.it> | 2019-11-16 08:48:59 +0100 |
| commit | cc5da06284277c69529776c0a30b0f98bd969c11 (patch) | |
| tree | f02c5620bdcd346495e0a18840c59b20ed560362 /tune | |
| parent | 811421c50eedea16d2d8675c606a013055a1525d (diff) | |
| download | gmp-cc5da06284277c69529776c0a30b0f98bd969c11.tar.gz | |
tune: Small optimisations to recent changes.
Diffstat (limited to 'tune')
| -rw-r--r-- | tune/common.c | 2 | ||||
| -rw-r--r-- | tune/speed.c | 2 | ||||
| -rw-r--r-- | tune/speed.h | 18 |
3 files changed, 11 insertions, 11 deletions
diff --git a/tune/common.c b/tune/common.c index e803d046e..c8b17fced 100644 --- a/tune/common.c +++ b/tune/common.c @@ -1,6 +1,6 @@ /* Shared speed subroutines. -Copyright 1999-2006, 2008-2017 Free Software Foundation, Inc. +Copyright 1999-2006, 2008-2017, 2019 Free Software Foundation, Inc. This file is part of the GNU MP Library. diff --git a/tune/speed.c b/tune/speed.c index b9fe23cad..24a51a985 100644 --- a/tune/speed.c +++ b/tune/speed.c @@ -1,6 +1,6 @@ /* Speed measuring program. -Copyright 1999-2003, 2005, 2006, 2008-2018 Free Software Foundation, Inc. +Copyright 1999-2003, 2005, 2006, 2008-2019 Free Software Foundation, Inc. This file is part of the GNU MP Library. diff --git a/tune/speed.h b/tune/speed.h index 41170e901..f23bacb1e 100644 --- a/tune/speed.h +++ b/tune/speed.h @@ -1,6 +1,7 @@ /* Header for speed and threshold things. -Copyright 1999-2003, 2005, 2006, 2008-2016 Free Software Foundation, Inc. +Copyright 1999-2003, 2005, 2006, 2008-2017, 2019 Free Software +Foundation, Inc. This file is part of the GNU MP Library. @@ -3478,17 +3479,16 @@ int speed_routine_count_zeros_setup (struct speed_params *, mp_ptr, int, int); Worst case is multiple prime factors larger than trial div limit. */ #define SPEED_ROUTINE_MPN_PERFECT_POWER(function) \ { \ - mpz_t r, p; \ + mpz_t r; \ unsigned i, power; \ double t; \ \ SPEED_RESTRICT_COND (s->size >= 10); \ \ - mpz_init_set_ui (p, (1 << 16) + 1); /* larger than 1000th prime */ \ - mpz_init_set_ui (r, (1 << 17) - 1); \ + mpz_init (r); \ power = s->size * GMP_NUMB_BITS / 17; \ - mpz_pow_ui(r, r, power - 1); \ - mpz_mul(r, r, p); \ + mpz_ui_pow_ui(r, (1 << 17) - 1, power - 1); \ + mpz_mul_ui(r, r, (1 << 16) + 1); /* larger than 1000th prime */ \ \ speed_starttime (); \ i = s->reps; \ @@ -3498,7 +3498,6 @@ int speed_routine_count_zeros_setup (struct speed_params *, mp_ptr, int, int); t = speed_endtime (); \ \ mpz_clear (r); \ - mpz_clear (p); \ return t; \ } @@ -3506,12 +3505,13 @@ int speed_routine_count_zeros_setup (struct speed_params *, mp_ptr, int, int); #define SPEED_ROUTINE_MPN_PERFECT_SQUARE(function) \ { \ mpz_t r; \ - unsigned i, power; \ + unsigned i; \ double t; \ \ SPEED_RESTRICT_COND (s->size >= 2); \ mpz_init_set_n (r, s->xp, s->size / 2); \ - mpz_pow_ui(r, r, 2); \ + mpz_setbit (r, s->size * GMP_NUMB_BITS / 2 - 1); \ + mpz_mul (r, r, r); \ \ speed_starttime (); \ i = s->reps; \ |