[PATCH] D155375: [wip/help] Access TargetMachine without crashing

[Matt Arsenault via Phabricator via llvm-commits]

arsenm added a comment.

In D155375#4522229 <https://reviews.llvm.org/D155375#4522229>, @JonChesterfield wrote:

> In D155375#4508222 <https://reviews.llvm.org/D155375#4508222>, @arsenm wrote:
>
>> What were you trying to use the target machine for here?
>
> I wanted to query the amount of LDS available for the architecture with the plan of setting [min max] frame dimensions on allocations. Working around by leaving max unspecified when unknown, where it is unknown because I couldn't make this ^ patch work. I think it would be possible to only use target machine from the old pass manager but that's a mess. Very tempting to delete the new pass manager code and go down that path, but probably better not to,

You should be able to have the TargetMachine as a member of the pass struct, passed in to the pass constructor in the passbuilder callback


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  https://reviews.llvm.org/D155375/new/

https://reviews.llvm.org/D155375