llvm dev - Mar 2019 - Efficient emulation of arithmetic operations

Hello.
     I would like to advertise a very interesting LLVM related project I worked
on in the
last 1.5 years.

     It is about the efficient emulation of arithmetic operations by
"inlining" the
emulation routines (written manually) by using the LLVM Instruction selection
pass.
     This is something that is useful as methodology for other LLVM back ends
for
architectures that require emulation. The technical report at 
https://sites.google.com/site/alexsusu/myfilecabinet/OpincaaLLVM_TR_UPB.pdf
describes this
very interesting method in Section 7 - specifically Algorithm 7.1 could be used
by other
LLVM developers to implement it for other back ends also.
     (There are also some slides available describing specifically this work: 
https://sites.google.com/site/alexsusu/myfilecabinet/CGO2019_LLVM_Performance_Workshop-Arithmetic_emulation_slides.pdf
) .

     Please ask questions and provide feedback if this is of interest to you.

   Thank you,
     Alex

Hello.
     I would like to add that the work on arithmetic emulation was described
also in a
WPMVP 2019 paper (satellite of PPoPP) - you can find it here: 
https://dl.acm.org/citation.cfm?id=3306166 . Please ask questions and provide
feedback if
this is of interest to you.
     Again, I consider this to be a very interesting contribution for the LLVM
back end,
theoretical, but also as a proposed methodology in the aforementioned papers .

   Best regards,
     Alex

On 3/2/2019 3:53 PM, Alex Susu wrote:
>   Hello.
>     I would like to advertise a very interesting LLVM related project I
worked on in the
> last 1.5 years.
>
>     It is about the efficient emulation of arithmetic operations by
"inlining" the
> emulation routines (written manually) by using the LLVM Instruction
selection pass.
>     This is something that is useful as methodology for other LLVM back
ends for
> architectures that require emulation. The technical report at
> https://sites.google.com/site/alexsusu/myfilecabinet/OpincaaLLVM_TR_UPB.pdf
describes this
> very interesting method in Section 7 - specifically Algorithm 7.1 could be
used by other
> LLVM developers to implement it for other back ends also.
>     (There are also some slides available describing specifically this
work:
>
https://sites.google.com/site/alexsusu/myfilecabinet/CGO2019_LLVM_Performance_Workshop-Arithmetic_emulation_slides.pdf
> ) .
>
>     Please ask questions and provide feedback if this is of interest to
you.
>
>   Thank you,
>     Alex