[llvm] [TTI][RISCV] Add cost modelling for intrinsic vp.load.ff (PR #160470)

[Luke Lau via llvm-commits]

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@@ -1795,6 +1795,15 @@ class BasicTTIImplBase : public TargetTransformInfoImplCRTPBase<T> {
         }
       }
 
+      if (ICA.getID() == Intrinsic::vp_load_ff) {
+        Type *RetTy = ICA.getReturnType();
+        assert(RetTy->isStructTy() && "expected struct return");
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lukel97 wrote:

No need for the assert, the cast below will trap if it's not a StructType

https://github.com/llvm/llvm-project/pull/160470