diff options
Diffstat (limited to 'include/llvm/IR/LLVMContext.h')
| -rw-r--r-- | include/llvm/IR/LLVMContext.h | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/include/llvm/IR/LLVMContext.h b/include/llvm/IR/LLVMContext.h index b27abad618c9..4cb77701f762 100644 --- a/include/llvm/IR/LLVMContext.h +++ b/include/llvm/IR/LLVMContext.h @@ -42,6 +42,24 @@ class Output; } // end namespace yaml +namespace SyncScope { + +typedef uint8_t ID; + +/// Known synchronization scope IDs, which always have the same value. All +/// synchronization scope IDs that LLVM has special knowledge of are listed +/// here. Additionally, this scheme allows LLVM to efficiently check for +/// specific synchronization scope ID without comparing strings. +enum { + /// Synchronized with respect to signal handlers executing in the same thread. + SingleThread = 0, + + /// Synchronized with respect to all concurrently executing threads. + System = 1 +}; + +} // end namespace SyncScope + /// This is an important class for using LLVM in a threaded context. It /// (opaquely) owns and manages the core "global" data of LLVM's core /// infrastructure, including the type and constant uniquing tables. @@ -111,6 +129,16 @@ public: /// tag registered with an LLVMContext has an unique ID. uint32_t getOperandBundleTagID(StringRef Tag) const; + /// getOrInsertSyncScopeID - Maps synchronization scope name to + /// synchronization scope ID. Every synchronization scope registered with + /// LLVMContext has unique ID except pre-defined ones. + SyncScope::ID getOrInsertSyncScopeID(StringRef SSN); + + /// getSyncScopeNames - Populates client supplied SmallVector with + /// synchronization scope names registered with LLVMContext. Synchronization + /// scope names are ordered by increasing synchronization scope IDs. + void getSyncScopeNames(SmallVectorImpl<StringRef> &SSNs) const; + /// Define the GC for a function void setGC(const Function &Fn, std::string GCName); |