[VPlan] Remove dead VPBB argument from tryTo[Create]Widen[Recipe] (NFC)

The functions now use VPBuilder to insert recipes and the VPBB argument
is unused. Clean it up.

Author: fhahn

llvm/lib/Transforms/Vectorize/LoopVectorize.cpp

@@ -8542,8 +8542,7 @@ bool VPRecipeBuilder::shouldWiden(Instruction *I, VFRange &Range) const {
 }
 
 VPWidenRecipe *VPRecipeBuilder::tryToWiden(Instruction *I,
-                                           ArrayRef<VPValue *> Operands,
-                                           VPBasicBlock *VPBB) {
+                                           ArrayRef<VPValue *> Operands) {
   switch (I->getOpcode()) {
   default:
     return nullptr;
@@ -8823,10 +8822,8 @@ bool VPRecipeBuilder::getScaledReductions(
   return false;
 }
 
-VPRecipeBase *
-VPRecipeBuilder::tryToCreateWidenRecipe(Instruction *Instr,
-                                        ArrayRef<VPValue *> Operands,
-                                        VFRange &Range, VPBasicBlock *VPBB) {
+VPRecipeBase *VPRecipeBuilder::tryToCreateWidenRecipe(
+    Instruction *Instr, ArrayRef<VPValue *> Operands, VFRange &Range) {
   // First, check for specific widening recipes that deal with inductions, Phi
   // nodes, calls and memory operations.
   VPRecipeBase *Recipe;
@@ -8905,7 +8902,7 @@ VPRecipeBuilder::tryToCreateWidenRecipe(Instruction *Instr,
                                  *CI);
   }
 
-  return tryToWiden(Instr, Operands, VPBB);
+  return tryToWiden(Instr, Operands);
 }
 
 VPRecipeBase *
@@ -9373,7 +9370,7 @@ LoopVectorizationPlanner::tryToBuildVPlanWithVPRecipes(VFRange &Range) {
       }
 
       VPRecipeBase *Recipe =
-          RecipeBuilder.tryToCreateWidenRecipe(Instr, Operands, Range, VPBB);
+          RecipeBuilder.tryToCreateWidenRecipe(Instr, Operands, Range);
       if (!Recipe)
         Recipe = RecipeBuilder.handleReplication(Instr, Operands, Range);
 

llvm/lib/Transforms/Vectorize/VPRecipeBuilder.h

@@ -128,8 +128,7 @@ class VPRecipeBuilder {
   /// Check if \p I has an opcode that can be widened and return a VPWidenRecipe
   /// if it can. The function should only be called if the cost-model indicates
   /// that widening should be performed.
-  VPWidenRecipe *tryToWiden(Instruction *I, ArrayRef<VPValue *> Operands,
-                            VPBasicBlock *VPBB);
+  VPWidenRecipe *tryToWiden(Instruction *I, ArrayRef<VPValue *> Operands);
 
   /// Makes Histogram count operations safe for vectorization, by emitting a
   /// llvm.experimental.vector.histogram.add intrinsic in place of the
@@ -174,7 +173,7 @@ class VPRecipeBuilder {
   /// the given VF \p Range.
   VPRecipeBase *tryToCreateWidenRecipe(Instruction *Instr,
                                        ArrayRef<VPValue *> Operands,
-                                       VFRange &Range, VPBasicBlock *VPBB);
+                                       VFRange &Range);
 
   /// Create and return a partial reduction recipe for a reduction instruction
   /// along with binary operation and reduction phi operands.