[LLVMdev] RE : Is llc broken for Cortex-A9 + neon ?

Anton Korobeynikov anton at korobeynikov.info
Mon Jun 25 06:39:03 PDT 2012


> I filled this problem a while ago here http://llvm.org/bugs/show_bug.cgi?id=13111
> Thinking it first was an LLVM opt bug. Shall I assign it to Nadav or create a new one ?
IR is correct per se, so, backend should handle it (and it is w/o
vector promotion). Everything was ok, because vector promotion was
disabled by default on 3.0.
You may try to check with llc -promote-elements=1 on llc from 3.0.

-- 
With best regards, Anton Korobeynikov
Faculty of Mathematics and Mechanics, Saint Petersburg State University



More information about the llvm-dev mailing list