[PATCH] D77967: [Dominators] Facilitate updates to MachinePostDominatorTree

[Carl Ritson via Phabricator via llvm-commits]

critson updated this revision to Diff 257274.
critson added a comment.

Simplify the change set to bare minimum required.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D77967/new/

https://reviews.llvm.org/D77967

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


Index: llvm/include/llvm/CodeGen/MachinePostDominators.h
===================================================================
--- llvm/include/llvm/CodeGen/MachinePostDominators.h
+++ llvm/include/llvm/CodeGen/MachinePostDominators.h
@@ -33,6 +33,11 @@
 
   MachinePostDominatorTree();
 
+  PostDomTreeT &getBase() {
+    if (!DT) DT.reset(new PostDomTreeT());
+    return *DT;
+  }
+
   FunctionPass *createMachinePostDominatorTreePass();
 
   const SmallVectorImpl<MachineBasicBlock *> &getRoots() const {


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