On 02/28/2012 01:32 PM, Christophe Gisquet wrote:
Hi,
in my profiling, ff_sbr_apply accounts for ~12% of the decoding time,
but it has a lot of inlining. The divisions I modify seem to account
for ~5% of that, so precomputing them is interesting. Disassembly
shows a gcc 4.6.2 on x86 64 with -funsafe-math-optimizations does not
do this, while the attached patch does remove 2 such divisions. Not
sure what part of these explanations is interesting to put in the log
message.
Christophe
Patch OK.
MvH
Benjamin Larsson
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