[llvm] [LV] Add initial legality checks for loops with unbound loads. (PR #152422)

[Shih-Po Hung via llvm-commits]

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@@ -843,6 +843,10 @@ class TargetTransformInfo {
   /// Return true if the target supports strided load.
   LLVM_ABI bool isLegalStridedLoadStore(Type *DataType, Align Alignment) const;
 
+  /// Return true if the target supports fault-only-first load.
+  LLVM_ABI bool isLegalFaultOnlyFirstLoad(Type *DataType,
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arcbbb wrote:

I hadn’t anticipated a generic lowering for vp.load.ff. I’ll move to cost-based approach and see how it integrate with VPlan.

https://github.com/llvm/llvm-project/pull/152422