legal_fpimm_iterator legal_fpimm_end() const {
return LegalFPImmediates.end();
}
+
+ /// isShuffleMaskLegal - Targets can use this to indicate that they only
+ /// support *some* VECTOR_SHUFFLE operations, those with specific masks.
+ /// By default, if a target supports the VECTOR_SHUFFLE node, all mask values
+ /// are assumed to be legal.
+ virtual bool isShuffleMaskLegal(SDOperand Mask, MVT::ValueType VT) const {
+ return true;
+ }
/// getOperationAction - Return how this operation should be treated: either
/// it is legal, needs to be promoted to a larger size, needs to be
getOperationAction(Op, VT) == Custom;
}
-
- /// isVectorShuffleLegal - Return true if a vector shuffle is legal with the
- /// specified mask and type. Targets can specify exactly which masks they
- /// support and the code generator is tasked with not creating illegal masks.
- bool isShuffleLegal(MVT::ValueType VT, SDOperand Mask) const {
- return isOperationLegal(ISD::VECTOR_SHUFFLE, VT) &&
- isShuffleMaskLegal(Mask, VT);
- }
-
/// getTypeToPromoteTo - If the action for this operation is to promote, this
/// method returns the ValueType to promote to.
MVT::ValueType getTypeToPromoteTo(unsigned Op, MVT::ValueType VT) const {
TargetDAGCombineArray[NT >> 3] |= 1 << (NT&7);
}
- /// isShuffleMaskLegal - Targets can use this to indicate that they only
- /// support *some* VECTOR_SHUFFLE operations, those with specific masks.
- /// By default, if a target supports the VECTOR_SHUFFLE node, all mask values
- /// are assumed to be legal.
- virtual bool isShuffleMaskLegal(SDOperand Mask, MVT::ValueType VT) const {
- return true;
- }
-
public:
//===--------------------------------------------------------------------===//