Richard Smith 33e0f7ef94 [modules] Stop performing PCM lookups for all identifiers when building with C++ modules. Instead, serialize a list of interesting identifiers and mark those ones out of date on module import. Avoiding the identifier lookups here gives a 20-30% speedup in builds with large numbers of modules. No functionality change intended. ...

llvm-svn: 242868

2015-07-22 02:08:40 +00:00

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