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Clarification on mcpu/tune/arch options
- From: NightStrike <nightstrike at gmail dot com>
- To: gcc-help <gcc-help at gcc dot gnu dot org>
- Date: Thu, 13 Dec 2007 19:09:04 -0500
- Subject: Clarification on mcpu/tune/arch options
The gcc manual defines the options mcpu, mtune, and march as being
optimizers for various ARM targets. It lists viable options, and they
are all ARM related. However, I often see people using options that
aren't in the manual for targets that the manual says aren't
supported. For instance, -mcpu=i686, or -march=native. What is the
nature of this discrepancy between the documentation and what I see as
common usage?