Commit 9026fc5
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Auto merge of #155628 - nnethercote:CStore-from_tcx, r=mu001999
Streamline `CrateMetadataRef` construction in `provide_one!`.
`cstore.get_crate_data()` creates a `CrateMetadataRef`, which is exactly what we need. The current code is very confused and does several unnecessary things: mapping the `FreezeReadGuard` and calling `CStore::from_tcx` a second time to construct a second `CrateMetadataRef`.
This is a small perf win.
r? @mu0019990 file changed
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