[VLIWMachineScheduler] Disable default copy ctor and copy assignment operator for...

class VLIWSchedBoundary manages resources such as dynamically allocated memory, it's generally a good practice to either implement a custom copy constructor or disable the default one.

Reviewed By: JamesNagurne

Differential Revision: https://reviews.llvm.org/D151699

diff --git a/llvm/include/llvm/CodeGen/VLIWMachineScheduler.h b/llvm/include/llvm/CodeGen/VLIWMachineScheduler.h
index a39f04f..50c8806 100644 (file)
--- a/llvm/include/llvm/CodeGen/VLIWMachineScheduler.h
+++ b/llvm/include/llvm/CodeGen/VLIWMachineScheduler.h
@@ -151,6 +151,8 @@ protected:
           Pending(ID << ConvergingVLIWScheduler::LogMaxQID, Name + ".P") {}
 
     ~VLIWSchedBoundary();
+    VLIWSchedBoundary &operator=(const VLIWSchedBoundary &other) = delete;
+    VLIWSchedBoundary(const VLIWSchedBoundary &other) = delete;
 
     void init(VLIWMachineScheduler *dag, const TargetSchedModel *smodel) {
       DAG = dag;