[llvm] VPlan: thread plan to VPBuilder (NFC) (PR #125364)

[Ramkumar Ramachandra via llvm-commits]

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@@ -83,13 +88,6 @@ class VPBuilder {
   VPBasicBlock *getInsertBlock() const { return BB; }
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artagnon wrote:

I already tried that, but it is unreliable, and I get crashes due to the insertion point not being set.

https://github.com/llvm/llvm-project/pull/125364