[llvm] [TTI][RISCV] Model cost of loading constants arms of selects and compares (PR #109824)

[Philip Reames via llvm-commits]

================
@@ -10760,11 +10764,14 @@ BoUpSLP::getEntryCost(const TreeEntry *E, ArrayRef<Value *> VectorizedVals,
             TTIRef.getArithmeticInstrCost(E->getAltOpcode(), VecTy, CostKind);
       } else if (auto *CI0 = dyn_cast<CmpInst>(VL0)) {
         auto *MaskTy = getWidenedType(Builder.getInt1Ty(), VL.size());
-        VecCost = TTIRef.getCmpSelInstrCost(E->getOpcode(), VecTy, MaskTy,
-                                            CI0->getPredicate(), CostKind, VL0);
+        VecCost = TTIRef.getCmpSelInstrCost(
+            E->getOpcode(), VecTy, MaskTy, CI0->getPredicate(), CostKind,
+            {TTI::OK_AnyValue, TTI::OP_None}, {TTI::OK_AnyValue, TTI::OP_None},
----------------
preames wrote:

Need to?  No.  It's not correctness related.  However doing so would be likely reasonable.  I'd plan to do a follow up to adjust other call sites, I started with the subset required by the original test and printing the cost model.  

https://github.com/llvm/llvm-project/pull/109824