[LV] Move getScalarizationOverhead and vector call cost computations to CM. (NFC)

This reduces the number of parameters we need to pass in and they seem a
natural fit in LoopVectorizationCostModel. Also simplifies things for
D59995.

As a follow up refactoring, we could only expose a expose a
shouldUseVectorIntrinsic() helper in LoopVectorizationCostModel, instead
of calling getVectorCallCost/getVectorIntrinsicCost in
InnerLoopVectorizer/VPRecipeBuilder.

Reviewers: Ayal, hsaito, dcaballe, rengolin

Reviewed By: rengolin

Differential Revision: https://reviews.llvm.org/D61638

llvm-svn: 360758

1 files changed, 1 insertions, 6 deletions

diff --git a/llvm/lib/Transforms/Vectorize/VPRecipeBuilder.h b/llvm/lib/Transforms/Vectorize/VPRecipeBuilder.h
index bc6b2212099..0ca6a6b93cf 100644
--- a/llvm/lib/Transforms/Vectorize/VPRecipeBuilder.h
+++ b/llvm/lib/Transforms/Vectorize/VPRecipeBuilder.h
@@ -29,9 +29,6 @@ class VPRecipeBuilder {
   /// Target Library Info.
   const TargetLibraryInfo *TLI;
 
-  /// Target Transform Info.
-  const TargetTransformInfo *TTI;
-
   /// The legality analysis.
   LoopVectorizationLegality *Legal;
 
@@ -104,11 +101,9 @@ public:
 
 public:
   VPRecipeBuilder(Loop *OrigLoop, const TargetLibraryInfo *TLI,
-                  const TargetTransformInfo *TTI,
                   LoopVectorizationLegality *Legal,
                   LoopVectorizationCostModel &CM, VPBuilder &Builder)
-      : OrigLoop(OrigLoop), TLI(TLI), TTI(TTI), Legal(Legal), CM(CM),
-        Builder(Builder) {}
+      : OrigLoop(OrigLoop), TLI(TLI), Legal(Legal), CM(CM), Builder(Builder) {}
 
   /// Check if a recipe can be create for \p I withing the given VF \p Range.
   /// If a recipe can be created, it adds it to \p VPBB.