[llvm-dev] [RFC] Nios II backend

[Grischenko, Andrei L via llvm-dev]

Hello Joerg,

>On Wed, Apr 12, 2017 at 10:20:30AM +0000, Grischenko, Andrei L via llvm-dev wrote:
>> I am proposing the integration of a backend targeting Nios II processor architecture.

>Nice to hear that.

>> Plan for initial implementation corresponding to patches (obviously the plan can be changed after comments)
>> - Target registration
>> 	a)  Nios2.td, Nios2.h, Nios2TargetMachine.h, Nios2TargetMachine.cpp, Nios2Subtarget.h, Nios2Subtarget.cpp, TargetInfo/Nios2TargetInfo.cpp
>> 	b) MCTargetDesc/Nios2MCTargetDesc.h, MCTargetDesc/Nios2MCTargetDesc.cpp...
>> - Register information (Nios2RegisterInfo.cpp, Nios2RegisterInfo.h, Nios2RegisterInfo.td)
>> - ISA specification (Nios2InstrFormats.td, Nios2InstrInfo.cpp, Nios2InstrInfo.h, Nios2InstrInfo.td)
>> - GlobalISel (At the moment I use DAG selector, but work on porting to GlobalISel is already started)
>> - Assembly printer (InstPrinter/Nios2InstPrinter.h, InstPrinter/Nios2InstPrinter.cpp, Nios2AsmPrinter.cpp, Nios2AsmPrinter.h, MCTargetDesc/Nios2MCAsmInfo.cpp, MCTargetDesc/Nios2MCAsmInfo.h, .)
>> - Target triple registration in clang
>> - Built-in functions (clang and codegen part)
>> - New options support (clang driver and codegen part)
>> - Direct ELF streaming (binary emission)

>As discussed in the recent target review threads, I would strongly
>recommend doing the assembly printer and even possibly the ELF emission
>as early as possible. Most of the other changes like the ISA
>specification and register information are more difficult to test
>without them and LLVM has a very strong preference for testing for all
>new code.

Thanks for the valuable recommendation. I will follow it.

>Joerg

Thanks,
Andrei.
--------------------------------------------------------------------

Intel Technology Poland sp. z o.o.
ul. Slowackiego 173 | 80-298 Gdansk | Sad Rejonowy Gdansk Polnoc | VII Wydzial Gospodarczy Krajowego Rejestru Sadowego - KRS 101882 | NIP 957-07-52-316 | Kapital zakladowy 200.000 PLN.

Ta wiadomosc wraz z zalacznikami jest przeznaczona dla okreslonego adresata i moze zawierac informacje poufne. W razie przypadkowego otrzymania tej wiadomosci, prosimy o powiadomienie nadawcy oraz trwale jej usuniecie; jakiekolwiek
przegladanie lub rozpowszechnianie jest zabronione.
This e-mail and any attachments may contain confidential material for the sole use of the intended recipient(s). If you are not the intended recipient, please contact the sender and delete all copies; any review or distribution by
others is strictly prohibited.