SLTozer wrote:
> The release note doesn't say: Does `-fextend-lifetimes` imply
> `-fextend-this-pointer`? They're implemented as independent toggles but the
> effect isn't really independent IIRC. I wonder (years after it was originally
> implemented downstream, I know) whether we'd be better off with
> `-fextend-lifetimes[={all,this,none}]`. (But maybe wait for a second opinion.)
Correct, this is _sort of_ implied by `-fextend-lifetimes` extending the life
of all variables and `-fextend-this-pointer` extending just the `this` pointer,
but it wasn't totally clear to me the first time I looked at the flag either.
Making it into a flag that takes options is an interesting idea and one I
broadly approve of - especially as I have some plans to add additional modes
(e.g. `-fextend-lifetimes=params`) further down the line.
https://github.com/llvm/llvm-project/pull/110000
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