amd64 arch and sse optimization

[Felipe Sateler]

I have some packages that also add (on amd64 and i386) -mtune=generic.
This causes the compiler to optimize for the most common cpus, but
still be compatible with older ones.

Other optimizations that I have added on all archs are -ffast-math and
-ftree-vectorize.


On Sun, Feb 2, 2014 at 10:31 AM, Jaromír Mikeš <mira.mikes at gmail.com> wrote:
> Hi all,
>
> I would like to add sse optimization for amd64 arch in some packages (mostly
> LV2 nad LADSPA plugins).
> I found that something like this works fine for me:
>
> ifeq ($(DEB_HOST_ARCH_CPU),amd64)
> CFLAGS += -msse -msse2 -mfpmath=sse
> endif
>
> Is it right way to use CFLAGS to add optimization flags?
> Which flags could be safely added for amd64?
>
> best regards
>
> mira
>
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-- 

Saludos,
Felipe Sateler