Re: [PATCH 000/141] Fix fall-through warnings for Clang

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On Mon, 23 Nov 2020, Joe Perches wrote:

> On Tue, 2020-11-24 at 11:58 +1100, Finn Thain wrote:
> > it's not for me to prove that such patches don't affect code 
> > generation. That's for the patch author and (unfortunately) for 
> > reviewers.
> Ideally, that proof would be provided by the compilation system itself 
> and not patch authors nor reviewers nor maintainers.
> Unfortunately gcc does not guarantee repeatability or deterministic 
> output. To my knowledge, neither does clang.

Yes, I've said the same thing myself. But having attempted it, I now think 
this is a hard problem. YMMV.

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