/*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER .
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*
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* FITNESS FOR A PARTICULAR PURPOSE . See the GNU General Public License
* version 2 for more details ( a copy is included in the LICENSE file that
* accompanied this code ) .
*
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* 2 along with this work ; if not , write to the Free Software Foundation ,
* Inc . , 51 Franklin St , Fifth Floor , Boston , MA 02110 - 1301 USA .
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#ifndef SHARE_OPTO_COUNTBITSNODE_HPP
#define SHARE_OPTO_COUNTBITSNODE_HPP
#include "opto/node.hpp"
#include "opto/opcodes.hpp"
class PhaseTransform;
//---------- CountBitsNode -----------------------------------------------------
class CountBitsNode : public Node {
public :
CountBitsNode(Node* in1) : Node(0 , in1) {}
const Type* bottom_type() const { return TypeInt::INT ; }
virtual uint ideal_reg() const { return Op_RegI; }
};
//---------- CountLeadingZerosINode --------------------------------------------
// Count leading zeros (0-bit count starting from MSB) of an integer.
class CountLeadingZerosINode : public CountBitsNode {
public :
CountLeadingZerosINode(Node* in1) : CountBitsNode(in1) {}
virtual int Opcode() const ;
virtual const Type* Value(PhaseGVN* phase) const ;
};
//---------- CountLeadingZerosLNode --------------------------------------------
// Count leading zeros (0-bit count starting from MSB) of a long.
class CountLeadingZerosLNode : public CountBitsNode {
public :
CountLeadingZerosLNode(Node* in1) : CountBitsNode(in1) {}
virtual int Opcode() const ;
virtual const Type* Value(PhaseGVN* phase) const ;
};
//---------- CountTrailingZerosINode -------------------------------------------
// Count trailing zeros (0-bit count starting from LSB) of an integer.
class CountTrailingZerosINode : public CountBitsNode {
public :
CountTrailingZerosINode(Node* in1) : CountBitsNode(in1) {}
virtual int Opcode() const ;
virtual const Type* Value(PhaseGVN* phase) const ;
};
//---------- CountTrailingZerosLNode -------------------------------------------
// Count trailing zeros (0-bit count starting from LSB) of a long.
class CountTrailingZerosLNode : public CountBitsNode {
public :
CountTrailingZerosLNode(Node* in1) : CountBitsNode(in1) {}
virtual int Opcode() const ;
virtual const Type* Value(PhaseGVN* phase) const ;
};
//---------- PopCountINode -----------------------------------------------------
// Population count (bit count) of an integer.
class PopCountINode : public CountBitsNode {
public :
PopCountINode(Node* in1) : CountBitsNode(in1) {}
virtual int Opcode() const ;
};
//---------- PopCountLNode -----------------------------------------------------
// Population count (bit count) of a long.
class PopCountLNode : public CountBitsNode {
public :
PopCountLNode(Node* in1) : CountBitsNode(in1) {}
virtual int Opcode() const ;
};
#endif // SHARE_OPTO_COUNTBITSNODE_HPP
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