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| author | Owen Anderson <resistor@mac.com> | 2009-06-26 18:09:03 +0000 |
|---|---|---|
| committer | Owen Anderson <resistor@mac.com> | 2009-06-26 18:09:03 +0000 |
| commit | cb73734247158006a1bd3bf22bc2d5b5597eda53 (patch) | |
| tree | cbc7b2baedca704fede8b84eb2f2649c109027aa /lib/Support | |
| parent | 93d95bd2c309b1fb8e2a830c441d86556a41038c (diff) | |
| download | external_llvm-cb73734247158006a1bd3bf22bc2d5b5597eda53.zip external_llvm-cb73734247158006a1bd3bf22bc2d5b5597eda53.tar.gz external_llvm-cb73734247158006a1bd3bf22bc2d5b5597eda53.tar.bz2 | |
Use atomic operations for accessing this global counter.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74294 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Support')
| -rw-r--r-- | lib/Support/Annotation.cpp | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/lib/Support/Annotation.cpp b/lib/Support/Annotation.cpp index 9c3efa3..b778043 100644 --- a/lib/Support/Annotation.cpp +++ b/lib/Support/Annotation.cpp @@ -68,9 +68,12 @@ AnnotationID AnnotationManager::getID(const char *Name) { // Name -> ID if (I == E) { sys::SmartScopedWriter<true> Writer(&*AnnotationsLock); I = IDMap->find(Name); - if (I == IDMap->end()) - (*IDMap)[Name] = IDCounter++; // Add a new element - return AnnotationID(IDCounter-1); + if (I == IDMap->end()) { + unsigned newCount = sys::AtomicIncrement(&IDCounter); + (*IDMap)[Name] = newCount-1; // Add a new element + return AnnotationID(newCount-1); + } else + return AnnotationID(I->second); } return AnnotationID(I->second); } |