search for: 1b8af6b

Martijn van Beurden wrote: > I just checked on my Raspberry pi (armv6-hf, GCC 4.6) and it > looks like decoding is actually faster with these changes. I > benchmarked 1b8af6b against f7c52c8, the results are attached. Interesting results, thanks. (OTOH, GCC 4.6 was released ~4.5 years ago, so it would be also interesting to test it on newer compilers - GCC 4.9.x or 5.x, or some new Clang...)

...or even, nothing at all. * Having large numbers of UB warnings makes it difficult (or rather time consuming) to check them all for the possibility that they are a potentially exploitable. Most of these UB changes have little liklihood of performance regressions. However, this one: commit 1b8af6bb45a9ad74fa374fb6414974e63ffc793b Author: Erik de Castro Lopo <erikd at mega-nerd.com> Date: Sat Aug 29 05:21:43 2015 +1000 libFLAC/fixed.c: Fix undefined behaviour Left shift if a negative integer such that the sign bit is affected is (according to the C spec) unde...

lvqcl wrote: > Martijn van Beurden wrote: > > > I just checked on my Raspberry pi (armv6-hf, GCC 4.6) and it > > looks like decoding is actually faster with these changes. I > > benchmarked 1b8af6b against f7c52c8, the results are attached. > > Interesting results, thanks. > > > (OTOH, GCC 4.6 was released ~4.5 years ago, so it would be also > interesting to test it on newer compilers - GCC 4.9.x or 5.x, > or some new Clang...) I've added a micro benchmark for thi...