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Re: [PATCH] Fix optimization regression in constant folder
> Still I don't like at all that sizetype is a frontend-specific type.
Why? It has to be. It needs to match the signedness and precision of
size_t and figuring out what that is doesn't seem something that the
middle end should take over from the C front end.
More fundamentally, knowing what the valid range of sizes valid for types
is more a *language* issue, which only the front end can know about,
than one based on modes and sizes that are defined for the middle end.