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List:       flac-dev
Subject:    Re: [flac-dev] [PATCH] configure.ac: don't try to unset -g from CFLAGS
From:       lvqcl <lvqcl.mail () gmail ! com>
Date:       2014-11-30 22:01:19
Message-ID: op.xp5rghnfcba0by () userhome-pc
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Christian Weisgerber wrote:

>> My understanding is that '-O3 -funroll-loops' gives the next encoder
>> and/or decoder performance.
>
> Or it triggers compiler bugs and -funroll-loops makes the code
> slower because it overflows the instruction cache.



FLAC has its own test suite and AFAIK it passes all the tests.

And -O3 implies -ftree-vectorize which can speed up en-/decoding.
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