| commit | c84d8e8f1c406ab34d56efd4a9f8c5fbce70af2d | [log] [tgz] |
|---|---|---|
| author | Jan Svoboda <jan_svoboda@apple.com> | Fri Mar 14 11:32:39 2025 -0700 |
| committer | GitHub <noreply@github.com> | Fri Mar 14 11:32:39 2025 -0700 |
| tree | 869fe558fc328f610628c697c2006a91f7581ec1 | |
| parent | d0a0de50f7dc6f116863ea9e8ca11efc2dc9f71e [diff] |
[clang][modules] Introduce new `ModuleCache` interface (#131193) This PR adds new `ModuleCache` interface to Clang's implicitly-built modules machinery. The main motivation for this change is to create a second implementation that uses a more efficient kind of `llvm::AdvisoryLock` during dependency scanning. In addition to the lock abstraction, the `ModuleCache` interface also manages the existing `InMemoryModuleCache` instance. I found that compared to keeping these separate/independent, the code is a bit simpler now, since these are two tightly coupled concepts. I can envision a more efficient implementation of the `InMemoryModuleCache` for the single-process case too, which will be much easier to implement with the current setup. This is not intended to be a functional change.
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