Bug 57112 - -march=x86-64 not documented
Summary: -march=x86-64 not documented
Status: NEW
Alias: None
Product: gcc
Classification: Unclassified
Component: target (show other bugs)
Version: 4.9.0
: P3 normal
Target Milestone: ---
Assignee: Not yet assigned to anyone
URL:
Keywords: documentation
Depends on:
Blocks:
 
Reported: 2013-04-29 12:44 UTC by Marc Glisse
Modified: 2013-04-29 12:59 UTC (History)
0 users

See Also:
Host:
Target: x86_64-linux-gnu
Build:
Known to work:
Known to fail:
Last reconfirmed: 2013-04-29 00:00:00


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Description Marc Glisse 2013-04-29 12:44:31 UTC
Hello,

for people who have a gcc that was configured with some non-default --with-arch but who want to build a generic binary, an option like -march=generic would be useful. It seems that the right spelling is -march=x86-64, but I couldn't find that documented in invoke.texi.
Comment 1 Jonathan Wakely 2013-04-29 12:59:28 UTC
Yes, I only learned about it from reading the sources.