[RISCV] Move vector cost table lookup out of the switch in getIntrinsicInstrCost...

This allows vectors to be looked up if the switch is used for the
scalar version of an intrinsic.

Extracted from D136508.

diff --git a/llvm/lib/Target/RISCV/RISCVTargetTransformInfo.cpp b/llvm/lib/Target/RISCV/RISCVTargetTransformInfo.cpp
index 64d214b..f364436 100644 (file)
--- a/llvm/lib/Target/RISCV/RISCVTargetTransformInfo.cpp
+++ b/llvm/lib/Target/RISCV/RISCVTargetTransformInfo.cpp
@@ -511,15 +511,15 @@ RISCVTTIImpl::getIntrinsicInstrCost(const IntrinsicCostAttributes &ICA,
     auto LT = getTypeLegalizationCost(RetTy);
     return Cost + (LT.first - 1);
   }
-  default:
-    if (ST->hasVInstructions() && RetTy->isVectorTy()) {
-      auto LT = getTypeLegalizationCost(RetTy);
-      if (const auto *Entry = CostTableLookup(VectorIntrinsicCostTable,
-                                              ICA.getID(), LT.second))
-        return LT.first * Entry->Cost;
-    }
-    break;
   }
+
+  if (ST->hasVInstructions() && RetTy->isVectorTy()) {
+    auto LT = getTypeLegalizationCost(RetTy);
+    if (const auto *Entry = CostTableLookup(VectorIntrinsicCostTable,
+                                            ICA.getID(), LT.second))
+      return LT.first * Entry->Cost;
+  }
+
   return BaseT::getIntrinsicInstrCost(ICA, CostKind);
 }