[Gmp-commit] /var/hg/gmp: 3 new changesets

[mercurial at gmplib.org]

details:   /var/hg/gmp/rev/84177b5c2192
changeset: 17207:84177b5c2192
user:      Torbjorn Granlund <tg at gmplib.org>
date:      Wed Jan 04 00:12:08 2017 +0100
description:
Merge NEWS from 6.1.

details:   /var/hg/gmp/rev/634077957395
changeset: 17208:634077957395
user:      Torbjorn Granlund <tg at gmplib.org>
date:      Thu Jan 05 14:06:15 2017 +0100
description:
ChangeLog

details:   /var/hg/gmp/rev/05673b7ca228
changeset: 17209:05673b7ca228
user:      Torbjorn Granlund <tg at gmplib.org>
date:      Thu Jan 05 14:06:57 2017 +0100
description:
Trivial merge.

diffstat:

 ChangeLog                       |   8 ++++++++
 NEWS                            |  15 ++++++++++++++-
 mpn/arm/v7a/cora15/gmp-mparam.h |   2 +-
 mpn/x86/k7/gmp-mparam.h         |   2 ++
 mpn/x86/k8/gmp-mparam.h         |   2 ++
 mpn/x86_64/k8/gmp-mparam.h      |   2 ++
 6 files changed, 29 insertions(+), 2 deletions(-)

diffs (96 lines):

diff -r d63705bdd09d -r 05673b7ca228 ChangeLog
--- a/ChangeLog	Wed Jan 04 00:10:18 2017 +0100
+++ b/ChangeLog	Thu Jan 05 14:06:57 2017 +0100
@@ -1,3 +1,11 @@
+2017-01-03  Torbjörn Granlund  <tg at gmplib.org>
+
+	* configure.ac (arm*-*-*): Properly point to cortex-a5 subdir.
+
+2016-12-31  Torbjörn Granlund  <tg at gmplib.org>
+
+	* tune/tuneup.c (relspeed_div_1_vs_mul_1): New function.
+
 2016-12-26  Torbjörn Granlund  <tg at gmplib.org>
 
 	* longlong.h (x86_64 umul_ppmm): Add mulx variant (not automatically
diff -r d63705bdd09d -r 05673b7ca228 NEWS
--- a/NEWS	Wed Jan 04 00:10:18 2017 +0100
+++ b/NEWS	Thu Jan 05 14:06:57 2017 +0100
@@ -12,15 +12,28 @@
 Changes between GMP version 6.1.1 and 6.1.2
 
   BUGS FIXED
+  * Mini-GMP: Fixed a division bug, which on a machine with 64-bit
+    unsigned long affects approximately 1 out of 2^32 divisors.
+
+  * Mini-GMP: Fix mpz_set_str crash on inputs with a large number of
+    leading zeros. Also stricter input validation, rejecting inputs
+    with no digits.
 
   FEATURES
   * Handle more systems which require PIC code in static libraries (e.g.,
     "hardened" Gentoo and Debian 9).
 
+  * Configuration for arm (-32 and -64) has been rewritten, fixing poor
+    code selection for many CPUs.
+
+  * Mini-GMP: Updated to the latest development version, including
+    new functions mpn_com and mpn_neg.
+
   SPEEDUPS
+  * None, except for arm CPUs affected by the configuration rewrite.
 
   MISC
-  
+  -
 
 Changes between GMP version 6.1.0 and 6.1.1
 
diff -r d63705bdd09d -r 05673b7ca228 mpn/arm/v7a/cora15/gmp-mparam.h
--- a/mpn/arm/v7a/cora15/gmp-mparam.h	Wed Jan 04 00:10:18 2017 +0100
+++ b/mpn/arm/v7a/cora15/gmp-mparam.h	Thu Jan 05 14:06:57 2017 +0100
@@ -51,7 +51,7 @@
 #define DIVEXACT_1_THRESHOLD                 0  /* always (native) */
 #define BMOD_1_TO_MOD_1_THRESHOLD           15
 
-#define DIV_1_VS_MUL_1_PERCENT             220
+#define DIV_1_VS_MUL_1_PERCENT             290
 
 #define MUL_TOOM22_THRESHOLD                28
 #define MUL_TOOM33_THRESHOLD               116
diff -r d63705bdd09d -r 05673b7ca228 mpn/x86/k7/gmp-mparam.h
--- a/mpn/x86/k7/gmp-mparam.h	Wed Jan 04 00:10:18 2017 +0100
+++ b/mpn/x86/k7/gmp-mparam.h	Thu Jan 05 14:06:57 2017 +0100
@@ -51,6 +51,8 @@
 #define DIVEXACT_1_THRESHOLD                 0  /* always (native) */
 #define BMOD_1_TO_MOD_1_THRESHOLD           24
 
+#define DIV_1_VS_MUL_1_PERCENT             259
+
 #define MUL_TOOM22_THRESHOLD                28
 #define MUL_TOOM33_THRESHOLD                85
 #define MUL_TOOM44_THRESHOLD               145
diff -r d63705bdd09d -r 05673b7ca228 mpn/x86/k8/gmp-mparam.h
--- a/mpn/x86/k8/gmp-mparam.h	Wed Jan 04 00:10:18 2017 +0100
+++ b/mpn/x86/k8/gmp-mparam.h	Thu Jan 05 14:06:57 2017 +0100
@@ -50,6 +50,8 @@
 #define DIVEXACT_1_THRESHOLD                 0  /* always (native) */
 #define BMOD_1_TO_MOD_1_THRESHOLD           40
 
+#define DIV_1_VS_MUL_1_PERCENT             264
+
 #define MUL_TOOM22_THRESHOLD                24
 #define MUL_TOOM33_THRESHOLD                81
 #define MUL_TOOM44_THRESHOLD               130
diff -r d63705bdd09d -r 05673b7ca228 mpn/x86_64/k8/gmp-mparam.h
--- a/mpn/x86_64/k8/gmp-mparam.h	Wed Jan 04 00:10:18 2017 +0100
+++ b/mpn/x86_64/k8/gmp-mparam.h	Thu Jan 05 14:06:57 2017 +0100
@@ -54,6 +54,8 @@
 #define DIVEXACT_1_THRESHOLD                 0  /* always (native) */
 #define BMOD_1_TO_MOD_1_THRESHOLD           16
 
+#define DIV_1_VS_MUL_1_PERCENT             337
+
 #define MUL_TOOM22_THRESHOLD                28
 #define MUL_TOOM33_THRESHOLD                81
 #define MUL_TOOM44_THRESHOLD               242