Changeset 2a4a23 in git for m4

Timestamp:

Apr 20, 2018, 3:03:49 PM (6 years ago)

Author:

Hans Schoenemann <hannes@…>

Branches:

(u'fieker-DuVal', '117eb8c30fc9e991c4decca4832b1d19036c4c65')(u'spielwiese', '4bd32dfef92ec9f5ed8dceee82d14318ae147107')

Children:

eb6e1d58eb9834a39221581ba56d2e26f61499cc

Parents:

65c1bd5b526a9447123bf85f32538aff3498501c

Message:

fix: Z/p-arithmetic for all architectures

File:

• m4/cpu-check.m4 (modified) (1 diff)

m4/cpu-check.m4

@@ -49 +49 @@
 
 AS_CASE([$host_cpu],
+dnl the following settings seems to be better on itanium processors
+  [ia64*], [
+      AC_DEFINE(HAVE_GENERIC_ADD,1,use branch for addition in Z/p otherwise it uses a generic add)],
 dnl the following settings seems to be better on i386 and x86_64 processors
-  [i*86*|x86_64*], [AC_DEFINE(HAVE_MULT_MOD,1,multiplication is fast on the cpu: a*b is with mod otherwise using tables of logartihms)],
-dnl the following settings seems to be better on itanium processors
-dnl AC_DEFINE(HAVE_MULT_MOD,1,)
-  [ia64*], [AC_DEFINE(HAVE_GENERIC_ADD,1,use branch for addition in Z/p otherwise it uses a generic add)],
+dnl AC_DEFINE(HAVE_GENERIC_MULT,1,)
+  [i*86*|x86_64*], [
+            AC_DEFINE(HAVE_GENERIC_ADD,1,use branch for addition in Z/p otherwise it uses a generic add)
+            AC_DEFINE(HAVE_GENERIC_MULT,1,multiplication is fast on the cpu: a*b is with mod otherwise using tables of logartihms)
+            ],
 dnl the following settings seems to be better on sparc processors
   [sparc*], [
-            AC_DEFINE(HAVE_MULT_MOD,1,multiplication is fast on the cpu: a*b is with mod otherwise using tables of logartihms)
-            AC_DEFINE(HAVE_DIV_MOD,1,division using extend euclidian algorithm otherwise using tables of logartihms)
+            AC_DEFINE(HAVE_GENERIC_ADD,1,use branch for addition in Z/p otherwise it uses a generic add)
             ],
 dnl the following settings seems to be better on ppc processors
 dnl testet on: ppc_Linux, 740/750 PowerMac G3, 512k L2 cache
-  [powerpc*|ppc*], [AC_DEFINE(HAVE_MULT_MOD,1,multiplication is fast on the cpu: a*b is with mod otherwise using tables of logartihms)],
+  [powerpc*|yyppc*], [AC_DEFINE(HAVE_GENERIC_MULT,1,multiplication is fast on the cpu: a*b is with mod otherwise using tables of logartihms)],
   []
 )