mshockwave wrote: > If only `CGBuiltin.cpp` and `ARM.cpp` is touched/updated, I see a large > difference
This. IMHO I think quality-of-life improvements on incremental build -- especially for LLVM developers -- is already a big thing that can justify this patch by itself. Regarding the marginal difference on clean builds: my guess is that compilers might spend an even longer time on another source file(s) which dominate the total compilation time. To find out if this is true, IIRC clang's `-ftime-trace` can breakdown the time it spends on each input source files. It requires some data collection from the trace file though. https://github.com/llvm/llvm-project/pull/132495 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
