[arm][doc] Document new -march= syntax.
authorRichard Earnshaw <rearnsha@arm.com>
Fri, 16 Jun 2017 21:06:51 +0000 (21:06 +0000)
committerRichard Earnshaw <rearnsha@gcc.gnu.org>
Fri, 16 Jun 2017 21:06:51 +0000 (21:06 +0000)
commit6d2f99aae150b9458e2cef9b85a77b9814995b45
treefd088c53a981ee4c9278ff8a7a5c89f48e8ce2f5
parentffc126904bb2352b55e987a4a8f0c614a84afd79
[arm][doc] Document new -march= syntax.

This adds documentation for the new extension options to -march= on ARM.
I tried a number of different ways of formatting the information, but this
seems the best, given what can be achieved in texinfo format.

* doc/invoke.texi (ARM Options, -march=): Document new syntax and
permitted extensions.

From-SVN: r249307
gcc/ChangeLog
gcc/doc/invoke.texi