uplink.coder at googlemail.com
Sun Aug 2 12:16:32 UTC 2020
On Sunday, 2 August 2020 at 06:36:44 UTC, Bruce Carneal wrote:
> Earlier LLVM work aimed to speed things up there by reducing
> the cost of "uniqueing" mutable type representations (turning
> deep/expensive equality checks in to pointer comparisons IIUC).
> As a guess, DMD already does this type of thing, separating
> deeper commonalities from shallower differences (names,
> attributes, and the like).
No, dmd uses the mangle to compare types,
as the mangle has to be unique and identical for identical types.
> Looks like many of LLVM's more recent problems stem from C/C++
> related issues. Again not a problem for DMD.
> Still, even concrete/lowered type representation is much less a
> "solved" problem than I imagined if LLVM is anything to go by.
Hmm yes, everyone has their own type representation, as much as I
like bashing LLVM
for this they can't be faulted as they try to be a general
> The improvements suggested by Manu and Stefan are looking
> pretty good.
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