Tollef Fog Heen tfheen at err.no writes:
]] Jaromír Mikeš
Aha ... so these default flags are added by compiler and they are not
controlled by debian tools at all?
Can I see somewhere default flags for different archs?
run gcc -dumpspecs on the different platforms and you can see
On Sat, 08 Feb 2014 04:01:53 +0100, Vincent Lefevre wrote:
On 2014-02-06 13:44:30 +, Felipe Sateler wrote:
On Thu, 06 Feb 2014 00:47:54 +0100, Julian Taylor wrote:
On 06.02.2014 00:39, Jaromír Mikeš wrote:
-ffast-math
this is dangerous it changes results, sometimes significantly
this is dangerous it changes results, sometimes significantly (e.g. for
complex numbers), only use if you don't care about correctness or have
verified its still correct.
IME, audio processing software can get away with it. Csound and its 400+
library of opcodes has been built with this
On 2014-02-06 13:44:30 +, Felipe Sateler wrote:
On Thu, 06 Feb 2014 00:47:54 +0100, Julian Taylor wrote:
On 06.02.2014 00:39, Jaromír Mikeš wrote:
-ffast-math
this is dangerous it changes results, sometimes significantly (e.g. for
complex numbers), only use if you don't care about
2014-02-06 Julian Taylor jtaylor.deb...@googlemail.com:
On 06.02.2014 00:39, Jaromír Mikeš wrote:
I would like to add some optimization flags for amd64 arch in some
packages (mostly LV2 nad LADSPA plugins).
I found these as candidates for amd64 arch:
-msse
-msse2
-mfpmath=sse
On 06/02/2014 10:22, Jaromír Mikeš wrote:
2014-02-06 Julian Taylor jtaylor.deb...@googlemail.com
mailto:jtaylor.deb...@googlemail.com:
On 06.02.2014 00:39, Jaromír Mikeš wrote:
I would like to add some optimization flags for amd64 arch in some
packages (mostly LV2 nad
2014-02-06 Sylvestre Ledru sylves...@debian.org:
On 06/02/2014 10:22, Jaromír Mikeš wrote:
2014-02-06 Julian Taylor jtaylor.deb...@googlemail.com:
On 06.02.2014 00:39, Jaromír Mikeš wrote:
I would like to add some optimization flags for amd64 arch in some
packages (mostly LV2 nad
]] Jaromír Mikeš
Aha ... so these default flags are added by compiler and they are not
controlled by debian tools at all?
Can I see somewhere default flags for different archs?
run gcc -dumpspecs on the different platforms and you can see them.
--
Tollef Fog Heen
UNIX is user friendly,
On Thu, 06 Feb 2014 00:47:54 +0100, Julian Taylor wrote:
On 06.02.2014 00:39, Jaromír Mikeš wrote:
Hi all,
I would like to add some optimization flags for amd64 arch in some
packages (mostly LV2 nad LADSPA plugins).
I found these as candidates for amd64 arch:
-msse -msse2 -mfpmath=sse
Hi all,
I would like to add some optimization flags for amd64 arch in some packages
(mostly LV2 nad LADSPA plugins).
I found these as candidates for amd64 arch:
-msse
-msse2
-mfpmath=sse
-ffast-math
-ftree-vectorize
-mtune=generic
Can some of them be safely added for amd64 or is just bad idea
On 06.02.2014 00:39, Jaromír Mikeš wrote:
Hi all,
I would like to add some optimization flags for amd64 arch in some
packages (mostly LV2 nad LADSPA plugins).
I found these as candidates for amd64 arch:
-msse
-msse2
-mfpmath=sse
this is enabled by default on amd64
-ffast-math
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