[PATCH] D70030: [MachineBlockPlacement] Update UnscheduledPredecessors when tail duplicate delete a block.

[Huihui Zhang via Phabricator via llvm-commits]

huihuiz marked an inline comment as done.
huihuiz added inline comments.


================
Comment at: llvm/lib/CodeGen/MachineBlockPlacement.cpp:2957
+  // deleted during tail duplication.
+  if (Removed)
+    for (MachineBasicBlock *Pred : DuplicatedPreds) {
----------------
Carrot wrote:
> Since BB is completely duplicated and removed, why not simply delete it from BlockToChain?
The deleted BB is removed from its associated BlockChain, and removed from MachineBlockInfo.


Repository:
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CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D70030/new/

https://reviews.llvm.org/D70030