diff options
| author | zimmerma <zimmerma@280ebfd0-de03-0410-8827-d642c229c3f4> | 2007-11-30 12:05:02 +0000 |
|---|---|---|
| committer | zimmerma <zimmerma@280ebfd0-de03-0410-8827-d642c229c3f4> | 2007-11-30 12:05:02 +0000 |
| commit | bb9f453f87ceae743940218945572b3b5793bbb1 (patch) | |
| tree | 3bfe3fa93ae284642055af71e3a83ff7f8973845 | |
| parent | 05239c494c2dc8c72581433ee5bbe438161af60f (diff) | |
| download | mpfr-bb9f453f87ceae743940218945572b3b5793bbb1.tar.gz | |
experimental code to distinguish Core2 from AMD64
git-svn-id: svn://scm.gforge.inria.fr/svn/mpfr/trunk@5063 280ebfd0-de03-0410-8827-d642c229c3f4
| -rw-r--r-- | acinclude.m4 | 8 | ||||
| -rw-r--r-- | mparam_h.in | 5 |
2 files changed, 12 insertions, 1 deletions
diff --git a/acinclude.m4 b/acinclude.m4 index a244b6da2..8ee851a49 100644 --- a/acinclude.m4 +++ b/acinclude.m4 @@ -87,6 +87,14 @@ alpha*-*-*) fi esac +dnl Check for Core2 processor +case $host in +x86_64-*linux*) + case `sed -n '/^vendor_id/s/^.*: \(.*\)/\1/p' < /proc/cpuinfo` in + *Intel*) AC_DEFINE(HAVE_HOST_CORE2,1,[Define if processor is Core 2]) ;; + esac +esac + AC_CHECK_TYPE( [union fpc_csr], AC_DEFINE(HAVE_FPC_CSR,1,[Define if union fpc_csr is available]), , [ diff --git a/mparam_h.in b/mparam_h.in index d7d5e885a..303cf45b6 100644 --- a/mparam_h.in +++ b/mparam_h.in @@ -23,6 +23,9 @@ MA 02110-1301, USA. */ # error "MPFR Internal not included" #endif +/* note: the different macros used here are those defined by gcc, + for example with gcc -dM -E -xc /dev/null */ + /***************************** * Threshold for Pentium 4 * *****************************/ @@ -101,7 +104,7 @@ MA 02110-1301, USA. */ /**************************** * Threshold for Core 2 * ****************************/ -#elif defined (__core2) && !defined (__i386) +#elif defined (HAVE_HOST_CORE2) && !defined (__i386) #define MPFR_MULHIGH_TAB \ -1,-1,-1,0,0,0,0,0,0,0,0,0,0,0,0,0, \ |