[SelectionDAG] Remove LegalTypes argument from getShiftAmountTy. NFC (#97757)

This argument is no longer used inside the function. Remove it from the
interface.

Author: topperc

llvm/include/llvm/CodeGen/TargetLowering.h

@@ -403,9 +403,7 @@ class TargetLoweringBase {
   /// returns the input type. For scalars, calls getScalarShiftAmountTy.
   /// If getScalarShiftAmountTy type cannot represent all possible shift
   /// amounts, returns MVT::i32.
-  /// \p LegalTypes is no longer used and will be removed from the interface.
-  EVT getShiftAmountTy(EVT LHSTy, const DataLayout &DL,
-                       bool LegalTypes = true) const;
+  EVT getShiftAmountTy(EVT LHSTy, const DataLayout &DL) const;
 
   /// Return the preferred type to use for a shift opcode, given the shifted
   /// amount type is \p ShiftValueTy.

llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp

@@ -847,7 +847,7 @@ namespace {
     /// legalization these can be huge.
     EVT getShiftAmountTy(EVT LHSTy) {
       assert(LHSTy.isInteger() && "Shift amount is not an integer type!");
-      return TLI.getShiftAmountTy(LHSTy, DAG.getDataLayout(), LegalTypes);
+      return TLI.getShiftAmountTy(LHSTy, DAG.getDataLayout());
     }
 
     /// This method returns true if we are running before type legalization or

llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp

@@ -1754,14 +1754,14 @@ SDValue SelectionDAG::getIntPtrConstant(uint64_t Val, const SDLoc &DL,
 SDValue SelectionDAG::getShiftAmountConstant(uint64_t Val, EVT VT,
                                              const SDLoc &DL, bool LegalTypes) {
   assert(VT.isInteger() && "Shift amount is not an integer type!");
-  EVT ShiftVT = TLI->getShiftAmountTy(VT, getDataLayout(), LegalTypes);
+  EVT ShiftVT = TLI->getShiftAmountTy(VT, getDataLayout());
   return getConstant(Val, DL, ShiftVT);
 }
 
 SDValue SelectionDAG::getShiftAmountConstant(const APInt &Val, EVT VT,
                                              const SDLoc &DL, bool LegalTypes) {
   assert(Val.ult(VT.getScalarSizeInBits()) && "Out of range shift");
-  return getShiftAmountConstant(Val.getZExtValue(), VT, DL, LegalTypes);
+  return getShiftAmountConstant(Val.getZExtValue(), VT, DL);
 }
 
 SDValue SelectionDAG::getVectorIdxConstant(uint64_t Val, const SDLoc &DL,

llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp

@@ -6639,7 +6639,7 @@ TargetLowering::prepareUREMEqFold(EVT SETCCVT, SDValue REMNode,
 
   EVT VT = REMNode.getValueType();
   EVT SVT = VT.getScalarType();
-  EVT ShVT = getShiftAmountTy(VT, DAG.getDataLayout(), !DCI.isBeforeLegalize());
+  EVT ShVT = getShiftAmountTy(VT, DAG.getDataLayout());
   EVT ShSVT = ShVT.getScalarType();
 
   // If MUL is unavailable, we cannot proceed in any case.
@@ -6897,7 +6897,7 @@ TargetLowering::prepareSREMEqFold(EVT SETCCVT, SDValue REMNode,
 
   EVT VT = REMNode.getValueType();
   EVT SVT = VT.getScalarType();
-  EVT ShVT = getShiftAmountTy(VT, DAG.getDataLayout(), !DCI.isBeforeLegalize());
+  EVT ShVT = getShiftAmountTy(VT, DAG.getDataLayout());
   EVT ShSVT = ShVT.getScalarType();
 
   // If we are after ops legalization, and MUL is unavailable, we can not

llvm/lib/CodeGen/TargetLoweringBase.cpp

@@ -1052,8 +1052,8 @@ MVT TargetLoweringBase::getScalarShiftAmountTy(const DataLayout &DL,
   return MVT::getIntegerVT(DL.getPointerSizeInBits(0));
 }
 
-EVT TargetLoweringBase::getShiftAmountTy(EVT LHSTy, const DataLayout &DL,
-                                         bool LegalTypes) const {
+EVT TargetLoweringBase::getShiftAmountTy(EVT LHSTy,
+                                         const DataLayout &DL) const {
   assert(LHSTy.isInteger() && "Shift amount is not an integer type!");
   if (LHSTy.isVector())
     return LHSTy;