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defaults for -march and -mtune
- From: Jay Foad <jay dot foad at gmail dot com>
- To: gcc-help at gcc dot gnu dot org
- Date: Thu, 24 Nov 2011 10:37:28 +0000
- Subject: defaults for -march and -mtune
If I don't specify any -march= or -mtune= options, what are the
default architectures to generate code for and to tune for? Can I get
the compiler to tell me this information?
The documentation here doesn't seem to say anything about it:
http://gcc.gnu.org/onlinedocs/gcc/i386-and-x86_002d64-Options.html
I'm using "gcc (Ubuntu/Linaro 4.6.1-9ubuntu3) 4.6.1" targetting x86_64.
Thanks,
Jay.