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| author | Argyrios Kyrtzidis <akyrtzi@gmail.com> | 2011-08-23 21:02:41 +0000 |
|---|---|---|
| committer | Argyrios Kyrtzidis <akyrtzi@gmail.com> | 2011-08-23 21:02:41 +0000 |
| commit | b6c465e17ec37390667223a18a340e8652c212ff (patch) | |
| tree | 9ae9d25f5e4a683e853589f1415a5aa61d080ec0 /lib/StaticAnalyzer/Core/ExprEngine.cpp | |
| parent | 499ea5550d6e2fc5cfbd33b47f06d92ce25d7a13 (diff) | |
Amend r138129 (reduction of SLocEntries) which introduced performance regression due
to increased calls to SourceManager::getFileID. (rdar://9992664)
Use a slightly different approach that is more efficient both in terms of speed
(no extra getFileID calls) and in SLocEntries reduction.
Comparing pre-r138129 and this patch we get:
For compiling SemaExpr.cpp reduction of SLocEntries by 26%.
For the boost enum library:
-SLocEntries -34% (note that this was -5% for r138129)
-Memory consumption -50%
-PCH size -31%
Reduced SLocEntries also benefit the hot function SourceManager::getFileID,
evident by the reduced "FileID scans".
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138380 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/StaticAnalyzer/Core/ExprEngine.cpp')
0 files changed, 0 insertions, 0 deletions