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author | Jeffrey Yasskin <jyasskin@google.com> | 2010-02-13 00:03:17 +0000 |
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committer | Jeffrey Yasskin <jyasskin@google.com> | 2010-02-13 00:03:17 +0000 |
commit | cfd30728417c39080b0a1ff1a3032f7ba2675210 (patch) | |
tree | ea2305cb86628ef96ebcdbdce0b3e0b7ef35bd03 /lib/VMCore/Pass.cpp | |
parent | eaca5fa8e6a2cb0f84a635da5f1f0f670776d0a5 (diff) | |
download | llvm-cfd30728417c39080b0a1ff1a3032f7ba2675210.tar.gz llvm-cfd30728417c39080b0a1ff1a3032f7ba2675210.tar.bz2 llvm-cfd30728417c39080b0a1ff1a3032f7ba2675210.tar.xz |
Make PassRegistrar thread-safe since it can be modified by code running in
separate LLVMContexts.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96051 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/VMCore/Pass.cpp')
-rw-r--r-- | lib/VMCore/Pass.cpp | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/lib/VMCore/Pass.cpp b/lib/VMCore/Pass.cpp index 2b0b23510a..a782e5a82e 100644 --- a/lib/VMCore/Pass.cpp +++ b/lib/VMCore/Pass.cpp @@ -194,6 +194,9 @@ PassManagerType BasicBlockPass::getPotentialPassManagerType() const { // namespace { class PassRegistrar { + /// Guards the contents of this class. + mutable sys::SmartMutex<true> Lock; + /// PassInfoMap - Keep track of the passinfo object for each registered llvm /// pass. typedef std::map<intptr_t, const PassInfo*> MapType; @@ -213,16 +216,19 @@ class PassRegistrar { public: const PassInfo *GetPassInfo(intptr_t TI) const { + sys::SmartScopedLock<true> Guard(Lock); MapType::const_iterator I = PassInfoMap.find(TI); return I != PassInfoMap.end() ? I->second : 0; } const PassInfo *GetPassInfo(StringRef Arg) const { + sys::SmartScopedLock<true> Guard(Lock); StringMapType::const_iterator I = PassInfoStringMap.find(Arg); return I != PassInfoStringMap.end() ? I->second : 0; } void RegisterPass(const PassInfo &PI) { + sys::SmartScopedLock<true> Guard(Lock); bool Inserted = PassInfoMap.insert(std::make_pair(PI.getTypeInfo(),&PI)).second; assert(Inserted && "Pass registered multiple times!"); Inserted=Inserted; @@ -230,6 +236,7 @@ public: } void UnregisterPass(const PassInfo &PI) { + sys::SmartScopedLock<true> Guard(Lock); MapType::iterator I = PassInfoMap.find(PI.getTypeInfo()); assert(I != PassInfoMap.end() && "Pass registered but not in map!"); @@ -239,6 +246,7 @@ public: } void EnumerateWith(PassRegistrationListener *L) { + sys::SmartScopedLock<true> Guard(Lock); for (MapType::const_iterator I = PassInfoMap.begin(), E = PassInfoMap.end(); I != E; ++I) L->passEnumerate(I->second); @@ -249,6 +257,7 @@ public: void RegisterAnalysisGroup(PassInfo *InterfaceInfo, const PassInfo *ImplementationInfo, bool isDefault) { + sys::SmartScopedLock<true> Guard(Lock); AnalysisGroupInfo &AGI = AnalysisGroupInfoMap[InterfaceInfo]; assert(AGI.Implementations.count(ImplementationInfo) == 0 && "Cannot add a pass to the same analysis group more than once!"); |