27 28 #include "opto/node.hpp" 29 #include "opto/opcodes.hpp" 30 31 class PhaseTransform; 32 33 //---------- CountBitsNode ----------------------------------------------------- 34 class CountBitsNode : public Node { 35 public: 36 CountBitsNode(Node* in1) : Node(0, in1) {} 37 const Type* bottom_type() const { return TypeInt::INT; } 38 virtual uint ideal_reg() const { return Op_RegI; } 39 }; 40 41 //---------- CountLeadingZerosINode -------------------------------------------- 42 // Count leading zeros (0-bit count starting from MSB) of an integer. 43 class CountLeadingZerosINode : public CountBitsNode { 44 public: 45 CountLeadingZerosINode(Node* in1) : CountBitsNode(in1) {} 46 virtual int Opcode() const; 47 virtual const Type* Value(PhaseTransform* phase) const; 48 }; 49 50 //---------- CountLeadingZerosLNode -------------------------------------------- 51 // Count leading zeros (0-bit count starting from MSB) of a long. 52 class CountLeadingZerosLNode : public CountBitsNode { 53 public: 54 CountLeadingZerosLNode(Node* in1) : CountBitsNode(in1) {} 55 virtual int Opcode() const; 56 virtual const Type* Value(PhaseTransform* phase) const; 57 }; 58 59 //---------- CountTrailingZerosINode ------------------------------------------- 60 // Count trailing zeros (0-bit count starting from LSB) of an integer. 61 class CountTrailingZerosINode : public CountBitsNode { 62 public: 63 CountTrailingZerosINode(Node* in1) : CountBitsNode(in1) {} 64 virtual int Opcode() const; 65 virtual const Type* Value(PhaseTransform* phase) const; 66 }; 67 68 //---------- CountTrailingZerosLNode ------------------------------------------- 69 // Count trailing zeros (0-bit count starting from LSB) of a long. 70 class CountTrailingZerosLNode : public CountBitsNode { 71 public: 72 CountTrailingZerosLNode(Node* in1) : CountBitsNode(in1) {} 73 virtual int Opcode() const; 74 virtual const Type* Value(PhaseTransform* phase) const; 75 }; 76 77 //---------- PopCountINode ----------------------------------------------------- 78 // Population count (bit count) of an integer. 79 class PopCountINode : public CountBitsNode { 80 public: 81 PopCountINode(Node* in1) : CountBitsNode(in1) {} 82 virtual int Opcode() const; 83 }; 84 85 //---------- PopCountLNode ----------------------------------------------------- 86 // Population count (bit count) of a long. 87 class PopCountLNode : public CountBitsNode { 88 public: 89 PopCountLNode(Node* in1) : CountBitsNode(in1) {} 90 virtual int Opcode() const; 91 }; 92 93 94 #endif // SHARE_VM_OPTO_COUNTBITSNODE_HPP | 27 28 #include "opto/node.hpp" 29 #include "opto/opcodes.hpp" 30 31 class PhaseTransform; 32 33 //---------- CountBitsNode ----------------------------------------------------- 34 class CountBitsNode : public Node { 35 public: 36 CountBitsNode(Node* in1) : Node(0, in1) {} 37 const Type* bottom_type() const { return TypeInt::INT; } 38 virtual uint ideal_reg() const { return Op_RegI; } 39 }; 40 41 //---------- CountLeadingZerosINode -------------------------------------------- 42 // Count leading zeros (0-bit count starting from MSB) of an integer. 43 class CountLeadingZerosINode : public CountBitsNode { 44 public: 45 CountLeadingZerosINode(Node* in1) : CountBitsNode(in1) {} 46 virtual int Opcode() const; 47 virtual const Type* Value(PhaseGVN* phase) const; 48 }; 49 50 //---------- CountLeadingZerosLNode -------------------------------------------- 51 // Count leading zeros (0-bit count starting from MSB) of a long. 52 class CountLeadingZerosLNode : public CountBitsNode { 53 public: 54 CountLeadingZerosLNode(Node* in1) : CountBitsNode(in1) {} 55 virtual int Opcode() const; 56 virtual const Type* Value(PhaseGVN* phase) const; 57 }; 58 59 //---------- CountTrailingZerosINode ------------------------------------------- 60 // Count trailing zeros (0-bit count starting from LSB) of an integer. 61 class CountTrailingZerosINode : public CountBitsNode { 62 public: 63 CountTrailingZerosINode(Node* in1) : CountBitsNode(in1) {} 64 virtual int Opcode() const; 65 virtual const Type* Value(PhaseGVN* phase) const; 66 }; 67 68 //---------- CountTrailingZerosLNode ------------------------------------------- 69 // Count trailing zeros (0-bit count starting from LSB) of a long. 70 class CountTrailingZerosLNode : public CountBitsNode { 71 public: 72 CountTrailingZerosLNode(Node* in1) : CountBitsNode(in1) {} 73 virtual int Opcode() const; 74 virtual const Type* Value(PhaseGVN* phase) const; 75 }; 76 77 //---------- PopCountINode ----------------------------------------------------- 78 // Population count (bit count) of an integer. 79 class PopCountINode : public CountBitsNode { 80 public: 81 PopCountINode(Node* in1) : CountBitsNode(in1) {} 82 virtual int Opcode() const; 83 }; 84 85 //---------- PopCountLNode ----------------------------------------------------- 86 // Population count (bit count) of a long. 87 class PopCountLNode : public CountBitsNode { 88 public: 89 PopCountLNode(Node* in1) : CountBitsNode(in1) {} 90 virtual int Opcode() const; 91 }; 92 93 94 #endif // SHARE_VM_OPTO_COUNTBITSNODE_HPP |