Hi Tanu, > > Do you happen to remember why the audio buffers in run_mix_test() in > > src/tests/cpu-mix-test.c are forced to have 8-byte alignment? I plan to > > replace the stack-allocated buffers with regular memblocks, and the > > memblock backing memory is only aligned to 4 bytes on 32-bit machines. > > It's possible to still have the old alignment behaviour, but that > > requires extra code, and if 4-byte alignment is equally fine, then I'd > > prefer to avoid the extra code. > > Also, why is the alignment so carefully controlled? All tests are run > on a buffer that begins one sample after the 8-byte alignment boundary. > Is this done to catch bugs related to weird (but valid) sample > alignments? probably this also constitutes a worst-case runtime-wise; I can't remember really it would be nice to have explicit alignment requirements/guarantees on buffers that are potentially processed by SIMDy code; alignment might make the code run faster regards, p. -- Peter Meerwald-Stadler +43-664-2444418 (mobile)
