labath added a comment.

In D76805#1944198 <https://reviews.llvm.org/D76805#1944198>, @emrekultursay 
wrote:

> > Does this actually depend on the other patch? It looks like an independent 
> > fix we could commit separately.
>
> This bug seems to have existed forever. Fixing it means we will have source 
> file cache enabled for the first time. If it causes any unforeseen issues, 
> I'd like users to have the ability to disable the cache, which is why I made 
> this change depend on the other change.


Ok, that makes kind of sense, though I am left wondering if we really need this 
feature, given that we have survived so long without noticing it is missing...

Am I understanding it correctly that without this patch, we would only cache 
the most recently accessed file (via `m_last_file_sp` member), and would always 
reload when switching to a new file?


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D76805/new/

https://reviews.llvm.org/D76805



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