[llvm] 7e99d31 - [MachineScheduler] Disable default copy ctor and copy assignment operator for SchedBoundary

[Bing1 Yu via llvm-commits]

Author: Bing1 Yu
Date: 2023-05-31T10:34:29+08:00
New Revision: 7e99d318fddb8b02bfbd7cfcd0e44281052b382e

URL: https://github.com/llvm/llvm-project/commit/7e99d318fddb8b02bfbd7cfcd0e44281052b382e
DIFF: https://github.com/llvm/llvm-project/commit/7e99d318fddb8b02bfbd7cfcd0e44281052b382e.diff

LOG: [MachineScheduler] Disable default copy ctor and copy assignment operator for SchedBoundary

class SchedBoundary 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: pengfei

Differential Revision: https://reviews.llvm.org/D151686

Added: 
    

Modified: 
    llvm/include/llvm/CodeGen/MachineScheduler.h

Removed: 
    


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diff  --git a/llvm/include/llvm/CodeGen/MachineScheduler.h b/llvm/include/llvm/CodeGen/MachineScheduler.h
index 06e1a8292e519..deb4396d1cdc7 100644
--- a/llvm/include/llvm/CodeGen/MachineScheduler.h
+++ b/llvm/include/llvm/CodeGen/MachineScheduler.h
@@ -722,7 +722,8 @@ class SchedBoundary {
     Available(ID, Name+".A"), Pending(ID << LogMaxQID, Name+".P") {
     reset();
   }
-
+  SchedBoundary &operator=(const SchedBoundary &other) = delete;
+  SchedBoundary(const SchedBoundary &other) = delete;
   ~SchedBoundary();
 
   void reset();