zequanwu added inline comments.
================
Comment at: lld/COFF/LTO.cpp:183
+ [&](size_t task, const Twine &moduleName) {
+ buf[task].first = moduleName.str();
return std::make_unique<CachedFileStream>(
----------------
int3 wrote:
> Any reason why this doesn't instead store the module name in the
> `file_names[task]` vector that the cache callback uses? Are the task IDs not
> unique across each run of `ltoObj`, regardless of whether we end up using the
> cache or not?
Users have to explicitly uses the flag `/opt:lldltocache=path` to let lld to
search for cache files at the given folder. If it's not given, the callback of
localCache won't be invoked.
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D137217/new/
https://reviews.llvm.org/D137217
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