aganea added a comment.
LGTM!
Some quick stats on our end (running Windows 10 on a Intel W-2135, 6-core, 3.7
GHz, NVMe SSD): on a large .SLN compiling approx. 16,000 .CPP files through 600
unity .CPPs and 23,000 .H files, out of **86 secs** spent in `ClangScanDeps`,
about **32 secs** are spent in `DirectoryLookup::LookUpFile`.
================
Comment at:
clang/include/clang/Tooling/DependencyScanning/DependencyScanningWorker.h:29
+/// sources either using a fast mode where the source files are minimized, or
+/// using the regular processing run.
+class DependencyScanningWorker {
----------------
How do you actually select between the fast mode or the regular preprocess?
Repository:
rC Clang
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D63681/new/
https://reviews.llvm.org/D63681
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