Re: Modern compilers for ye olde architectures

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From	Theo <theom+news@chiark.greenend.org.uk>
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Subject	Re: Modern compilers for ye olde architectures
Date	06 Oct 2021 10:36:29 +0100 (BST)
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Luke A. Guest <laguest@archeia.com> wrote:
> I have a Z80 project in mind and would like to build a compiler for a
> Z80.  I was wondering if modern backend techniques can be applied
> successfully for these old CPU's, i.e. SSA.
>
> I know GCC has backends for some older architectures, but these do weird
> gymnastics such as implementing a virtual cpu in rtl and then lowering
> further.

There is, it seems, an LLVM backend for Z80:
https://github.com/jacobly0/llvm-project
(see the 'z80' branch)
It appears TI calculators are the main use case.

I don't know the current status/functionality, but it would be fun to see
what the various LLVM passes do to the generated code.

It seems like there's been some work done on Rust for Z80 (and 6502):
https://github.com/jacobly0/llvm-project/issues/15

Theo

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Thread

Modern compilers for ye olde architectures "Luke A. Guest" <laguest@archeia.com> - 2021-10-05 13:22 +0100
  Re: Modern compilers for ye olde architectures David Brown <david.brown@hesbynett.no> - 2021-10-05 19:59 +0200
  Re: Modern compilers for ye olde architectures Hans-Peter Diettrich <DrDiettrich1@netscape.net> - 2021-10-05 22:12 +0200
  Re: Modern compilers for ye olde architectures Derek Jones <derek@NOSPAM-knosof.co.uk> - 2021-10-06 01:26 +0100
    Re: Modern compilers for ye olde architectures "Luke A. Guest" <laguest@archeia.com> - 2021-10-06 09:00 +0100
  Re: Modern compilers for ye olde architectures anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2021-10-06 07:56 +0000
    Re: Modern compilers for ye olde architectures Philipp Klaus Krause <pkk@spth.de> - 2021-10-06 18:20 +0200
      Re: Modern compilers for ye olde architectures anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2021-10-15 07:37 +0000
        Re: Modern compilers for ye olde architectures Philipp Klaus Krause <pkk@spth.de> - 2021-10-18 08:35 +0200
        Re: Modern compilers for ye olde architectures Philipp Klaus Krause <pkk@spth.de> - 2021-10-18 08:56 +0200
        Re: Modern compilers for ye olde architectures Philipp Klaus Krause <pkk@spth.de> - 2021-10-18 09:17 +0200
          Re: Modern compilers for ye olde architectures gah4 <gah4@u.washington.edu> - 2021-10-21 21:53 -0700
            Re: Modern compilers for ye olde architectures Kaz Kylheku <480-992-1380@kylheku.com> - 2021-10-22 17:28 +0000
    Re: Modern compilers for ye olde architectures dave_thompson_2@comcast.net - 2021-11-14 15:04 -0500
  Re: Modern compilers for ye olde architectures Theo <theom+news@chiark.greenend.org.uk> - 2021-10-06 10:36 +0100
    Re: Modern compilers for ye olde architectures "Luke A. Guest" <laguest@archeia.com> - 2021-10-06 16:20 +0100

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