On Tue, Jul 3, 2018 at 7:38 PM, Uros Bizjak <ubiz...@gmail.com> wrote: > Hello! > > Attached patch implements unsigned HImode and QImode vector average > instructions. This is all x86 has to offer...
FYI, I have tried the effectiveness of patched gcc with SPEC CPU2006 464.h264 (actually, jm19.0.zip source from [1]). Results with CFLAGS="-Ofast -mavx2" show that: $ objdump -d ldecod.exe | grep pavg | wc -l 6 $ objdump -d lencod.exe | grep pavg | wc -l 24 while without your patch, there were no instances of pavg found. Quite impressive effect! BTW: I didn't check the runtime, I'll wait for gcc SPEC tester [2] to pick up the patch. Uros. [1] http://iphome.hhi.de/suehring/tml/download/ [2] https://vmakarov.fedorapeople.org/spec/index.html
