Janne Grunau <j...@jannau.net> writes: > On 2014-02-25 15:54:37 +0000, Alex Bennée wrote: >> <snip> >> Have you got the log file "unsupported" line? I seem to recall you did >> ping me but maybe it was just on IRC? I just want to make sure I >> do the right ones. I'm working on this now. > > We spoke on irc about it. a quick test commenting unsupported > instructions out revealed that rshrn/2, sqrshrun and shrn/2 are > the only NEON instructions used in libav still missing support > in qemu master. Unsoppurted lines from qemu master 0459650d94d1 > below. > > target-arm/translate-a64.c:6884: unsupported instruction encoding 0x0f0a8e10 > at pc=00000000008632c8 > target-arm/translate-a64.c:6884: unsupported instruction encoding 0x2f0b8f9c > at pc=0000000000865764 > target-arm/translate-a64.c:6884: unsupported instruction encoding 0x0f0a8610 > at pc=0000000000863afc
I've just pushed support for the various shrn opcodes to: https://github.com/stsquad/qemu/tree/ajb-a64-working I suspect if libav uses them heavily there could be some optimisation to be made as the narrow operations make heavy use of helpers to do the saturation stuff. -- Alex Bennée _______________________________________________ linaro-dev mailing list linaro-dev@lists.linaro.org http://lists.linaro.org/mailman/listinfo/linaro-dev
