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Sam McCall 1abb883a04 [clangd] Don't traverse the AST within uninteresting files during indexing 
Summary:
We already skip function bodies from these files while parsing, and drop symbols
found in them. However, traversing their ASTs still takes a substantial amount
of time.

Non-scientific benchmark on my machine:
  background-indexing llvm-project (llvm+clang+clang-tools-extra), wall time
  before: 7:46
  after: 5:13
  change: -33%

Indexer.cpp libclang should be updated too, I'm less familiar with that code,
and it's doing tricky things with the ShouldSkipFunctionBody callback, so it
needs to be done separately.

Reviewers: kadircet

Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D80296
2020-05-26 10:27:28 +02:00
..
clang-apply-replacements
clang-change-namespace
clang-doc
clang-include-fixer
clang-move
clang-query Add a way to set traversal mode in clang-query 2020-05-23 14:57:10 +01:00
clang-reorder-fields Add some explicit use of TK_AsIs 2020-05-23 01:04:44 +01:00
clang-tidy Fix ignore-traversal to call correct method 2020-05-24 22:33:10 +01:00
clangd [clangd] Don't traverse the AST within uninteresting files during indexing 2020-05-26 10:27:28 +02:00
docs Revert two patches, not ready to be shared 2020-05-10 11:27:13 +02:00
modularize [clang-tools-extra] reimplement PreprocessorTracker in terms of StringSet. 2020-04-16 12:57:43 -07:00
pp-trace
test [clang-tidy] Fix potential assert in use-noexcept check 2020-05-24 14:40:58 +01:00
tool-template
unittests Add a way to set traversal mode in clang-query 2020-05-23 14:57:10 +01:00
.gitignore
CMakeLists.txt
CODE_OWNERS.TXT
LICENSE.TXT
README.txt

README.txt 

//===----------------------------------------------------------------------===//
// Clang Tools repository
//===----------------------------------------------------------------------===//

Welcome to the repository of extra Clang Tools.  This repository holds tools
that are developed as part of the LLVM compiler infrastructure project and the
Clang frontend.  These tools are kept in a separate "extra" repository to
allow lighter weight checkouts of the core Clang codebase.

This repository is only intended to be checked out inside of a full LLVM+Clang
tree, and in the 'tools/extra' subdirectory of the Clang checkout.

All discussion regarding Clang, Clang-based tools, and code in this repository
should be held using the standard Clang mailing lists:
  http://lists.llvm.org/mailman/listinfo/cfe-dev

Code review for this tree should take place on the standard Clang patch and
commit lists:
  http://lists.llvm.org/mailman/listinfo/cfe-commits

If you find a bug in these tools, please file it in the LLVM bug tracker:
  http://llvm.org/bugs/