[llvm] [JumpThreading] Invalidate LVI after `combineMetadataForCSE`. (PR #65219)

[Nikita Popov via llvm-commits]

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@@ -1269,6 +1269,7 @@ bool JumpThreadingPass::simplifyPartiallyRedundantLoad(LoadInst *LoadI) {
     if (IsLoadCSE) {
       LoadInst *NLoadI = cast<LoadInst>(AvailableVal);
       combineMetadataForCSE(NLoadI, LoadI, false);
+      LVI->eraseBlock(NLoadI->getParent());
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nikic wrote:

It's not necessary to erase the whole block here. Just eraseValue() on the load should be enough, though you may need to publicly expose the API first (it's usually automatically called via ValueHandle).

https://github.com/llvm/llvm-project/pull/65219