You may also be able to use <https://github.com/Keno/Cxx.jl> to write your C code, which should ensure that it is inlined.
Also -- are you sure that LLVM's vectorizer can't be convinced to generate these instructions automatically? I know this is not possible in all cases (I wish!), but there's been a lot of recent work on improving the vectorizer, and the current code quality is an order of magnitude better than last year. -erik On Sat, Nov 22, 2014 at 3:26 PM, Stefan Karpinski <ste...@karpinski.org> wrote: > You can already inline assembly into llvm so it's not super clean but it can > be done. > > On Sat, Nov 22, 2014 at 3:15 PM, Isaiah Norton <isaiah.nor...@gmail.com> > wrote: >> >> If it is exposed in some form by LLVM, you might be able to use llvmcall. >> See https://github.com/JuliaLang/julia/pull/5046 >> (and possibly also https://github.com/JuliaLang/julia/pull/8740) >> >> Eventually I believe we will have a similar `asmcall` feature. >> >> >> On Sat, Nov 22, 2014 at 2:58 PM, eric l <cdg2...@gmail.com> wrote: >>> >>> Is there a plan for some sort of intrinsics in Julia? The most recent >>> iterations of the x86 ISA have things like pext that >>> extract specific bits in a dw, or qw and pack them together. >>> Currently to use an instruction like that I define a C function create a >>> shared lib and make a ccall. >>> This is rather sub optimal and the function while very simple is not >>> inlined obviously... >>> >>> Thanks, >>> >>> -ETL >> >> > -- Erik Schnetter <schnet...@cct.lsu.edu> http://www.perimeterinstitute.ca/personal/eschnetter/
