[cfe-commits] [patch][clang] Set the default arch based on the triple

[Rafael Espindola]

With the attached patch the clang driver will set the default -march
based on the target triple. This changes two things

*) clang  -ccc-host-triple armv7a-unknown-linux-gnueabi will now
generate code for armv7
*) A clang compiled with ./configure ...
--target=armv7a-unknown-linux-gnueabi will produce code form armv7 by
default.

Is it OK?

Cheers,
-- 
Rafael Ávila de Espíndola
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