diff options
| -rw-r--r-- | include/llvm/IR/IRBuilder.h | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/include/llvm/IR/IRBuilder.h b/include/llvm/IR/IRBuilder.h index 189ba3d..f11d3b4 100644 --- a/include/llvm/IR/IRBuilder.h +++ b/include/llvm/IR/IRBuilder.h @@ -49,6 +49,10 @@ protected: class IRBuilderBase { DebugLoc CurDbgLocation; protected: + /// Save the current debug location here while we are suppressing + /// line table entries. + llvm::DebugLoc SavedDbgLocation; + BasicBlock *BB; BasicBlock::iterator InsertPt; LLVMContext &Context; @@ -113,6 +117,23 @@ public: CurDbgLocation = L; } + /// \brief Temporarily suppress DebugLocations from being attached + /// to emitted instructions, until the next call to + /// SetCurrentDebugLocation() or EnableDebugLocations(). Use this + /// if you want an instruction to be counted towards the prologue or + /// if there is no useful source location. + void DisableDebugLocations() { + llvm::DebugLoc Empty; + SavedDbgLocation = getCurrentDebugLocation(); + SetCurrentDebugLocation(Empty); + } + + /// \brief Restore the previously saved DebugLocation. + void EnableDebugLocations() { + assert(CurDbgLocation.isUnknown()); + SetCurrentDebugLocation(SavedDbgLocation); + } + /// \brief Get location information used by debugging information. DebugLoc getCurrentDebugLocation() const { return CurDbgLocation; } |