[llvm] [SLP] Bail out on store-to-load forwarding hazards (PR #199606)

[Alexey Bataev via llvm-commits]

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@@ -27384,6 +27418,142 @@ bool SLPVectorizerPass::runImpl(Function &F, ScalarEvolution *SE_,
   return Changed;
 }
 
+bool BoUpSLP::findStoreLoadForwardingConflict(StoreInst *BaseStore,
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alexey-bataev wrote:

Why do we scan through all the instructions in the blocks? We need to scan through the SLP tree and check that there is a dependency between the tree nodes, not the instructions in the blocks

https://github.com/llvm/llvm-project/pull/199606