diff options
| author | Anna Zaks <ganna@apple.com> | 2012-04-12 22:36:48 +0000 |
|---|---|---|
| committer | Anna Zaks <ganna@apple.com> | 2012-04-12 22:36:48 +0000 |
| commit | 6a86082f3a06a2dcceaaf63f78a0e52d64bcbaa3 (patch) | |
| tree | cf41e29ac97fff116c78975aeecda1a68594e741 /lib/Sema/SemaChecking.cpp | |
| parent | 273ed9870aa064992fb3c25a1f4d8973b10ad36e (diff) | |
[analyzer] PCH deserialization optimization.
We should not deserialize unused declarations from the PCH file. Achieve
this by storing the top level declarations during parsing
(HandleTopLevelDecl ASTConsumer callback) and analyzing/building a call
graph only for those.
Tested the patch on a sample ObjC file that uses PCH. With the patch,
the analyzes is 17.5% faster and clang consumes 40% less memory.
Got about 10% overall build/analyzes time decrease on a large Objective
C project.
A bit of CallGraph refactoring/cleanup as well..
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154625 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Sema/SemaChecking.cpp')
0 files changed, 0 insertions, 0 deletions