[PATCH] D150020: Fix possible self assign issue for DIEValue

[Wang, Xin via Phabricator via llvm-commits]

XinWang10 updated this revision to Diff 520045.
XinWang10 added a comment.

- resolve comment


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D150020/new/

https://reviews.llvm.org/D150020

Files:
  llvm/include/llvm/CodeGen/DIE.h


Index: llvm/include/llvm/CodeGen/DIE.h
===================================================================
--- llvm/include/llvm/CodeGen/DIE.h
+++ llvm/include/llvm/CodeGen/DIE.h
@@ -464,6 +464,8 @@
   }
 
   DIEValue &operator=(const DIEValue &X) {
+    if (this == &X)
+      return *this;
     destroyVal();
     Ty = X.Ty;
     Attribute = X.Attribute;


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