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Message-ID: <f4eafb78-9189-8369-9962-118e50a2ce9c@disroot.org>
Date: Fri, 7 May 2021 12:53:54 -0300
From: Érico Nogueira <ericonr@...root.org>
To: musl@...ts.openwall.com
Subject: Re: Compiling to single llvm bc, working example?
Em 07/05/2021 11:41, Jon Chesterfield escreveu:
> Hello musl,
>
> Clang has mixed support for compiling libc from C. A couple of years ago
> I ran into pattern matching turning fmod into a call to itself and
> similar. I can see malloc getting into fights with alias analysis as
> well. I'm not confident ffreestanding is propagated in the IR.
For a tangible example:
https://github.com/picolibc/picolibc/commit/4261cfecabee211af8d0dee1764bf86ed9c8e258
>
> Can anyone report success from compiling (a subset) of musl to llvm IR,
> perhaps with the hacks necessary at the time to make the end application
> work?
>
> Motivation is an architecture (amdgcn) that can't yet link machine code,
> but someone may have done this for performance.
>
> Thanks,
>
> Jon
>
>
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