The 3.8 branch produces broken code for divisions on arm/windows.
The brokenness can appear as incorrect behaviour or crashes.
The 3.9 branch isn't released yet, but is probably a better target
to base any work on at the moment.
Patches 1 and 2 fix a bug (that has been present in 3.7 and 3.8)
where it can use the wrong instruction in some cases (libav
with inline assembly disabled), causing rounding errors in
integer audio dct's there.
Patch 3 allows building inline assembly with clang/llvm in MSVC mode.
Martin Storsjö