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| author | vlefevre <vlefevre@280ebfd0-de03-0410-8827-d642c229c3f4> | 2021-09-27 12:43:05 +0000 |
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| committer | vlefevre <vlefevre@280ebfd0-de03-0410-8827-d642c229c3f4> | 2021-09-27 12:43:05 +0000 |
| commit | 4161fb97e6bd83b41678d833555680816d1cffc0 (patch) | |
| tree | 0e44b861fd24db5dc17441ad29ef377405d168a7 | |
| parent | 5da8bd91ce949a01afbb823c3d099a53bfb82b32 (diff) | |
| download | mpfr-4161fb97e6bd83b41678d833555680816d1cffc0.tar.gz | |
git-svn-id: https://scm.gforge.inria.fr/anonscm/svn/mpfr/trunk@14588 280ebfd0-de03-0410-8827-d642c229c3f4
| -rw-r--r-- | src/mparam_h.in | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/src/mparam_h.in b/src/mparam_h.in index 14e085f4f..ec9ee22b6 100644 --- a/src/mparam_h.in +++ b/src/mparam_h.in @@ -29,7 +29,14 @@ https://www.gnu.org/licenses/ or write to the Free Software Foundation, Inc., #include "generic/coverage/mparam.h" /* Note: the different macros used here are those defined by gcc, - for example with gcc -mtune=native -dM -E -xc /dev/null */ + for example with "gcc -mtune=native -dM -E -xc /dev/null". + + The best parameters may depend on the local machine, not just + the architecture or even the target processor as accepted by + -mtune. Target-related options set by GCC can be obtained with + the "-Q --help=target --help=params" options (in addition to + -march=... and -mtune=...). + See https://gcc.gnu.org/pipermail/gcc-help/2021-September/140720.html */ #elif (defined (__tune_core2__) || defined (__tune_nocona__)) && defined (__x86_64) /* 64-bit Core 2 or Xeon */ #define MPFR_TUNE_CASE "src/x86_64/core2/mparam.h" |