src/hotspot/share/opto/intrinsicnode.hpp - platform/libcore - Git at Google

 /*
  * Copyright (c) 2015, 2020, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License version 2 only, as
  * published by the Free Software Foundation.
  *
  * This code is distributed in the hope that it will be useful, but WITHOUT
  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  * 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).
  *
  * You should have received a copy of the GNU General Public License version
  * 2 along with this work; if not, write to the Free Software Foundation,
  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  *
  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  * or visit www.oracle.com if you need additional information or have any
  * questions.
  *
  */

 #ifndef SHARE_VM_OPTO_INTRINSICNODE_HPP
 #define SHARE_VM_OPTO_INTRINSICNODE_HPP

 #include "opto/node.hpp"
 #include "opto/opcodes.hpp"
 #include "opto/connode.hpp"


 //----------------------PartialSubtypeCheckNode--------------------------------
 // The 2nd slow-half of a subtype check.  Scan the subklass's 2ndary superklass
 // array for an instance of the superklass.  Set a hidden internal cache on a
 // hit (cache is checked with exposed code in gen_subtype_check()).  Return
 // not zero for a miss or zero for a hit.
 class PartialSubtypeCheckNode : public Node {
  public:
   PartialSubtypeCheckNode(Node* c, Node* sub, Node* super) : Node(c,sub,super) {}
   virtual int Opcode() const;
   virtual const Type* bottom_type() const { return TypeRawPtr::BOTTOM; }
   virtual uint ideal_reg() const { return Op_RegP; }
 };

 //------------------------------StrIntrinsic-------------------------------
 // Base class for Ideal nodes used in String intrinsic code.
 class StrIntrinsicNode: public Node {
  public:
   // Possible encodings of the two parameters passed to the string intrinsic.
   // 'L' stands for Latin1 and 'U' stands for UTF16. For example, 'LU' means that
   // the first string is Latin1 encoded and the second string is UTF16 encoded.
   typedef enum ArgEncoding { LL, LU, UL, UU, none } ArgEnc;

  protected:
   // Encoding of strings. Used to select the right version of the intrinsic.
   const ArgEncoding _encoding;
   virtual uint size_of() const;

  public:
   StrIntrinsicNode(Node* control, Node* char_array_mem,
                    Node* s1, Node* c1, Node* s2, Node* c2, ArgEncoding encoding):
   Node(control, char_array_mem, s1, c1, s2, c2), _encoding(encoding) {
   }

   StrIntrinsicNode(Node* control, Node* char_array_mem,
                    Node* s1, Node* s2, Node* c, ArgEncoding encoding):
   Node(control, char_array_mem, s1, s2, c), _encoding(encoding) {
   }

   StrIntrinsicNode(Node* control, Node* char_array_mem,
                    Node* s1, Node* s2, ArgEncoding encoding):
   Node(control, char_array_mem, s1, s2), _encoding(encoding) {
   }

   virtual bool depends_only_on_test() const { return false; }
   virtual const TypePtr* adr_type() const { return TypeAryPtr::BYTES; }
   virtual uint match_edge(uint idx) const;
   virtual uint ideal_reg() const { return Op_RegI; }
   virtual Node* Ideal(PhaseGVN* phase, bool can_reshape);
   virtual const Type* Value(PhaseGVN* phase) const;
   ArgEncoding encoding() const { return _encoding; }
 };

 //------------------------------StrComp-------------------------------------
 class StrCompNode: public StrIntrinsicNode {
  public:
   StrCompNode(Node* control, Node* char_array_mem,
               Node* s1, Node* c1, Node* s2, Node* c2, ArgEncoding encoding):
   StrIntrinsicNode(control, char_array_mem, s1, c1, s2, c2, encoding) {};
   virtual int Opcode() const;
   virtual const Type* bottom_type() const { return TypeInt::INT; }
 };

 //------------------------------StrEquals-------------------------------------
 class StrEqualsNode: public StrIntrinsicNode {
  public:
   StrEqualsNode(Node* control, Node* char_array_mem,
                 Node* s1, Node* s2, Node* c, ArgEncoding encoding):
   StrIntrinsicNode(control, char_array_mem, s1, s2, c, encoding) {};
   virtual int Opcode() const;
   virtual const Type* bottom_type() const { return TypeInt::BOOL; }
 };

 //------------------------------StrIndexOf-------------------------------------
 class StrIndexOfNode: public StrIntrinsicNode {
  public:
   StrIndexOfNode(Node* control, Node* char_array_mem,
                  Node* s1, Node* c1, Node* s2, Node* c2, ArgEncoding encoding):
   StrIntrinsicNode(control, char_array_mem, s1, c1, s2, c2, encoding) {};
   virtual int Opcode() const;
   virtual const Type* bottom_type() const { return TypeInt::INT; }
 };

 //------------------------------StrIndexOfChar-------------------------------------
 class StrIndexOfCharNode: public StrIntrinsicNode {
  public:
   StrIndexOfCharNode(Node* control, Node* char_array_mem,
                      Node* s1, Node* c1, Node* c, ArgEncoding encoding):
   StrIntrinsicNode(control, char_array_mem, s1, c1, c, encoding) {};
   virtual int Opcode() const;
   virtual const Type* bottom_type() const { return TypeInt::INT; }
 };

 //--------------------------StrCompressedCopy-------------------------------
 class StrCompressedCopyNode: public StrIntrinsicNode {
  public:
   StrCompressedCopyNode(Node* control, Node* arymem,
                         Node* s1, Node* s2, Node* c):
   StrIntrinsicNode(control, arymem, s1, s2, c, none) {};
   virtual int Opcode() const;
   virtual const Type* bottom_type() const { return TypeInt::INT; }
   virtual const TypePtr* adr_type() const { return TypePtr::BOTTOM; }
   virtual Node* Ideal(PhaseGVN* phase, bool can_reshape);
 };

 //--------------------------StrInflatedCopy---------------------------------
 class StrInflatedCopyNode: public StrIntrinsicNode {
  public:
   StrInflatedCopyNode(Node* control, Node* arymem,
                       Node* s1, Node* s2, Node* c):
   StrIntrinsicNode(control, arymem, s1, s2, c, none) {};
   virtual int Opcode() const;
   virtual const Type* bottom_type() const { return Type::MEMORY; }
   virtual const TypePtr* adr_type() const { return TypePtr::BOTTOM; }
   virtual Node* Ideal(PhaseGVN* phase, bool can_reshape);
 };

 //------------------------------AryEq---------------------------------------
 class AryEqNode: public StrIntrinsicNode {
  public:
   AryEqNode(Node* control, Node* char_array_mem,
             Node* s1, Node* s2, ArgEncoding encoding):
   StrIntrinsicNode(control, char_array_mem, s1, s2, encoding) {};
   virtual int Opcode() const;
   virtual const Type* bottom_type() const { return TypeInt::BOOL; }
 };

 //------------------------------HasNegatives---------------------------------
 class HasNegativesNode: public StrIntrinsicNode {
  public:
   HasNegativesNode(Node* control, Node* char_array_mem, Node* s1, Node* c1):
   StrIntrinsicNode(control, char_array_mem, s1, c1, none) {};
   virtual int Opcode() const;
   virtual const Type* bottom_type() const { return TypeInt::BOOL; }
 };


 //------------------------------EncodeISOArray--------------------------------
 // encode char[] to byte[] in ISO_8859_1
 class EncodeISOArrayNode: public Node {
  public:
   EncodeISOArrayNode(Node* control, Node* arymem, Node* s1, Node* s2, Node* c): Node(control, arymem, s1, s2, c) {};
   virtual int Opcode() const;
   virtual bool depends_only_on_test() const { return false; }
   virtual const Type* bottom_type() const { return TypeInt::INT; }
   virtual const TypePtr* adr_type() const { return TypePtr::BOTTOM; }
   virtual uint match_edge(uint idx) const;
   virtual uint ideal_reg() const { return Op_RegI; }
   virtual Node* Ideal(PhaseGVN* phase, bool can_reshape);
   virtual const Type* Value(PhaseGVN* phase) const;
 };

 //-------------------------------DigitNode----------------------------------------
 class DigitNode : public Node {
 public:
   DigitNode(Node* control, Node *in1) : Node(control, in1) {}
   virtual int Opcode() const;
   const Type* bottom_type() const { return TypeInt::BOOL; }
   virtual uint ideal_reg() const { return Op_RegI; }
 };

 //------------------------------LowerCaseNode------------------------------------
 class LowerCaseNode : public Node {
 public:
   LowerCaseNode(Node* control, Node *in1) : Node(control, in1) {}
   virtual int Opcode() const;
   const Type* bottom_type() const { return TypeInt::BOOL; }
   virtual uint ideal_reg() const { return Op_RegI; }
 };

 //------------------------------UpperCaseNode------------------------------------
 class UpperCaseNode : public Node {
 public:
   UpperCaseNode(Node* control, Node *in1) : Node(control, in1) {}
   virtual int Opcode() const;
   const Type* bottom_type() const { return TypeInt::BOOL; }
   virtual uint ideal_reg() const { return Op_RegI; }
 };

 //------------------------------WhitespaceCode-----------------------------------
 class WhitespaceNode : public Node {
 public:
   WhitespaceNode(Node* control, Node *in1) : Node(control, in1) {}
   virtual int Opcode() const;
   const Type* bottom_type() const { return TypeInt::BOOL; }
   virtual uint ideal_reg() const { return Op_RegI; }
 };

 //------------------------------CopySign-----------------------------------------
 class CopySignDNode : public Node {
  protected:
   CopySignDNode(Node* in1, Node* in2, Node* in3) : Node(0, in1, in2, in3) {}
  public:
   static CopySignDNode* make(PhaseGVN& gvn, Node* in1, Node* in2);
   virtual int Opcode() const;
   const Type* bottom_type() const { return TypeLong::DOUBLE; }
   virtual uint ideal_reg() const { return Op_RegD; }
 };

 class CopySignFNode : public Node {
  public:
   CopySignFNode(Node* in1, Node* in2) : Node(0, in1, in2) {}
   virtual int Opcode() const;
   const Type* bottom_type() const { return TypeLong::FLOAT; }
   virtual uint ideal_reg() const { return Op_RegF; }
 };

 //------------------------------Signum-------------------------------------------
 class SignumDNode : public Node {
  protected:
   SignumDNode(Node* in1, Node* in2, Node* in3) : Node(0, in1, in2, in3) {}
  public:
   static SignumDNode* make(PhaseGVN& gvn, Node* in);
   virtual int Opcode() const;
   virtual const Type* bottom_type() const { return Type::DOUBLE; }
   virtual uint ideal_reg() const { return Op_RegD; }
 };

 class SignumFNode : public Node {
  protected:
   SignumFNode(Node* in1, Node* in2, Node* in3) : Node(0, in1, in2, in3) {}
  public:
   static SignumFNode* make(PhaseGVN& gvn, Node* in);
   virtual int Opcode() const;
   virtual const Type* bottom_type() const { return Type::FLOAT; }
   virtual uint ideal_reg() const { return Op_RegF; }
 };

 #endif // SHARE_VM_OPTO_INTRINSICNODE_HPP
	/*
	* Copyright (c) 2015, 2020, Oracle and/or its affiliates. All rights reserved.
	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
	*
	* This code is free software; you can redistribute it and/or modify it
	* under the terms of the GNU General Public License version 2 only, as
	* published by the Free Software Foundation.
	*
	* This code is distributed in the hope that it will be useful, but WITHOUT
	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
	* 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).
	*
	* You should have received a copy of the GNU General Public License version
	* 2 along with this work; if not, write to the Free Software Foundation,
	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
	*
	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
	* or visit www.oracle.com if you need additional information or have any
	* questions.
	*
	*/

	#ifndef SHARE_VM_OPTO_INTRINSICNODE_HPP
	#define SHARE_VM_OPTO_INTRINSICNODE_HPP

	#include "opto/node.hpp"
	#include "opto/opcodes.hpp"
	#include "opto/connode.hpp"


	//----------------------PartialSubtypeCheckNode--------------------------------
	// The 2nd slow-half of a subtype check. Scan the subklass's 2ndary superklass
	// array for an instance of the superklass. Set a hidden internal cache on a
	// hit (cache is checked with exposed code in gen_subtype_check()). Return
	// not zero for a miss or zero for a hit.
	class PartialSubtypeCheckNode : public Node {
	public:
	PartialSubtypeCheckNode(Node* c, Node* sub, Node* super) : Node(c,sub,super) {}
	virtual int Opcode() const;
	virtual const Type* bottom_type() const { return TypeRawPtr::BOTTOM; }
	virtual uint ideal_reg() const { return Op_RegP; }
	};

	//------------------------------StrIntrinsic-------------------------------
	// Base class for Ideal nodes used in String intrinsic code.
	class StrIntrinsicNode: public Node {
	public:
	// Possible encodings of the two parameters passed to the string intrinsic.
	// 'L' stands for Latin1 and 'U' stands for UTF16. For example, 'LU' means that
	// the first string is Latin1 encoded and the second string is UTF16 encoded.
	typedef enum ArgEncoding { LL, LU, UL, UU, none } ArgEnc;

	protected:
	// Encoding of strings. Used to select the right version of the intrinsic.
	const ArgEncoding _encoding;
	virtual uint size_of() const;

	public:
	StrIntrinsicNode(Node* control, Node* char_array_mem,
	Node* s1, Node* c1, Node* s2, Node* c2, ArgEncoding encoding):
	Node(control, char_array_mem, s1, c1, s2, c2), _encoding(encoding) {
	}

	StrIntrinsicNode(Node* control, Node* char_array_mem,
	Node* s1, Node* s2, Node* c, ArgEncoding encoding):
	Node(control, char_array_mem, s1, s2, c), _encoding(encoding) {
	}

	StrIntrinsicNode(Node* control, Node* char_array_mem,
	Node* s1, Node* s2, ArgEncoding encoding):
	Node(control, char_array_mem, s1, s2), _encoding(encoding) {
	}

	virtual bool depends_only_on_test() const { return false; }
	virtual const TypePtr* adr_type() const { return TypeAryPtr::BYTES; }
	virtual uint match_edge(uint idx) const;
	virtual uint ideal_reg() const { return Op_RegI; }
	virtual Node* Ideal(PhaseGVN* phase, bool can_reshape);
	virtual const Type* Value(PhaseGVN* phase) const;
	ArgEncoding encoding() const { return _encoding; }
	};

	//------------------------------StrComp-------------------------------------
	class StrCompNode: public StrIntrinsicNode {
	public:
	StrCompNode(Node* control, Node* char_array_mem,
	Node* s1, Node* c1, Node* s2, Node* c2, ArgEncoding encoding):
	StrIntrinsicNode(control, char_array_mem, s1, c1, s2, c2, encoding) {};
	virtual int Opcode() const;
	virtual const Type* bottom_type() const { return TypeInt::INT; }
	};

	//------------------------------StrEquals-------------------------------------
	class StrEqualsNode: public StrIntrinsicNode {
	public:
	StrEqualsNode(Node* control, Node* char_array_mem,
	Node* s1, Node* s2, Node* c, ArgEncoding encoding):
	StrIntrinsicNode(control, char_array_mem, s1, s2, c, encoding) {};
	virtual int Opcode() const;
	virtual const Type* bottom_type() const { return TypeInt::BOOL; }
	};

	//------------------------------StrIndexOf-------------------------------------
	class StrIndexOfNode: public StrIntrinsicNode {
	public:
	StrIndexOfNode(Node* control, Node* char_array_mem,
	Node* s1, Node* c1, Node* s2, Node* c2, ArgEncoding encoding):
	StrIntrinsicNode(control, char_array_mem, s1, c1, s2, c2, encoding) {};
	virtual int Opcode() const;
	virtual const Type* bottom_type() const { return TypeInt::INT; }
	};

	//------------------------------StrIndexOfChar-------------------------------------
	class StrIndexOfCharNode: public StrIntrinsicNode {
	public:
	StrIndexOfCharNode(Node* control, Node* char_array_mem,
	Node* s1, Node* c1, Node* c, ArgEncoding encoding):
	StrIntrinsicNode(control, char_array_mem, s1, c1, c, encoding) {};
	virtual int Opcode() const;
	virtual const Type* bottom_type() const { return TypeInt::INT; }
	};

	//--------------------------StrCompressedCopy-------------------------------
	class StrCompressedCopyNode: public StrIntrinsicNode {
	public:
	StrCompressedCopyNode(Node* control, Node* arymem,
	Node* s1, Node* s2, Node* c):
	StrIntrinsicNode(control, arymem, s1, s2, c, none) {};
	virtual int Opcode() const;
	virtual const Type* bottom_type() const { return TypeInt::INT; }
	virtual const TypePtr* adr_type() const { return TypePtr::BOTTOM; }
	virtual Node* Ideal(PhaseGVN* phase, bool can_reshape);
	};

	//--------------------------StrInflatedCopy---------------------------------
	class StrInflatedCopyNode: public StrIntrinsicNode {
	public:
	StrInflatedCopyNode(Node* control, Node* arymem,
	Node* s1, Node* s2, Node* c):
	StrIntrinsicNode(control, arymem, s1, s2, c, none) {};
	virtual int Opcode() const;
	virtual const Type* bottom_type() const { return Type::MEMORY; }
	virtual const TypePtr* adr_type() const { return TypePtr::BOTTOM; }
	virtual Node* Ideal(PhaseGVN* phase, bool can_reshape);
	};

	//------------------------------AryEq---------------------------------------
	class AryEqNode: public StrIntrinsicNode {
	public:
	AryEqNode(Node* control, Node* char_array_mem,
	Node* s1, Node* s2, ArgEncoding encoding):
	StrIntrinsicNode(control, char_array_mem, s1, s2, encoding) {};
	virtual int Opcode() const;
	virtual const Type* bottom_type() const { return TypeInt::BOOL; }
	};

	//------------------------------HasNegatives---------------------------------
	class HasNegativesNode: public StrIntrinsicNode {
	public:
	HasNegativesNode(Node* control, Node* char_array_mem, Node* s1, Node* c1):
	StrIntrinsicNode(control, char_array_mem, s1, c1, none) {};
	virtual int Opcode() const;
	virtual const Type* bottom_type() const { return TypeInt::BOOL; }
	};


	//------------------------------EncodeISOArray--------------------------------
	// encode char[] to byte[] in ISO_8859_1
	class EncodeISOArrayNode: public Node {
	public:
	EncodeISOArrayNode(Node* control, Node* arymem, Node* s1, Node* s2, Node* c): Node(control, arymem, s1, s2, c) {};
	virtual int Opcode() const;
	virtual bool depends_only_on_test() const { return false; }
	virtual const Type* bottom_type() const { return TypeInt::INT; }
	virtual const TypePtr* adr_type() const { return TypePtr::BOTTOM; }
	virtual uint match_edge(uint idx) const;
	virtual uint ideal_reg() const { return Op_RegI; }
	virtual Node* Ideal(PhaseGVN* phase, bool can_reshape);
	virtual const Type* Value(PhaseGVN* phase) const;
	};

	//-------------------------------DigitNode----------------------------------------
	class DigitNode : public Node {
	public:
	DigitNode(Node* control, Node *in1) : Node(control, in1) {}
	virtual int Opcode() const;
	const Type* bottom_type() const { return TypeInt::BOOL; }
	virtual uint ideal_reg() const { return Op_RegI; }
	};

	//------------------------------LowerCaseNode------------------------------------
	class LowerCaseNode : public Node {
	public:
	LowerCaseNode(Node* control, Node *in1) : Node(control, in1) {}
	virtual int Opcode() const;
	const Type* bottom_type() const { return TypeInt::BOOL; }
	virtual uint ideal_reg() const { return Op_RegI; }
	};

	//------------------------------UpperCaseNode------------------------------------
	class UpperCaseNode : public Node {
	public:
	UpperCaseNode(Node* control, Node *in1) : Node(control, in1) {}
	virtual int Opcode() const;
	const Type* bottom_type() const { return TypeInt::BOOL; }
	virtual uint ideal_reg() const { return Op_RegI; }
	};

	//------------------------------WhitespaceCode-----------------------------------
	class WhitespaceNode : public Node {
	public:
	WhitespaceNode(Node* control, Node *in1) : Node(control, in1) {}
	virtual int Opcode() const;
	const Type* bottom_type() const { return TypeInt::BOOL; }
	virtual uint ideal_reg() const { return Op_RegI; }
	};

	//------------------------------CopySign-----------------------------------------
	class CopySignDNode : public Node {
	protected:
	CopySignDNode(Node* in1, Node* in2, Node* in3) : Node(0, in1, in2, in3) {}
	public:
	static CopySignDNode* make(PhaseGVN& gvn, Node* in1, Node* in2);
	virtual int Opcode() const;
	const Type* bottom_type() const { return TypeLong::DOUBLE; }
	virtual uint ideal_reg() const { return Op_RegD; }
	};

	class CopySignFNode : public Node {
	public:
	CopySignFNode(Node* in1, Node* in2) : Node(0, in1, in2) {}
	virtual int Opcode() const;
	const Type* bottom_type() const { return TypeLong::FLOAT; }
	virtual uint ideal_reg() const { return Op_RegF; }
	};

	//------------------------------Signum-------------------------------------------
	class SignumDNode : public Node {
	protected:
	SignumDNode(Node* in1, Node* in2, Node* in3) : Node(0, in1, in2, in3) {}
	public:
	static SignumDNode* make(PhaseGVN& gvn, Node* in);
	virtual int Opcode() const;
	virtual const Type* bottom_type() const { return Type::DOUBLE; }
	virtual uint ideal_reg() const { return Op_RegD; }
	};

	class SignumFNode : public Node {
	protected:
	SignumFNode(Node* in1, Node* in2, Node* in3) : Node(0, in1, in2, in3) {}
	public:
	static SignumFNode* make(PhaseGVN& gvn, Node* in);
	virtual int Opcode() const;
	virtual const Type* bottom_type() const { return Type::FLOAT; }
	virtual uint ideal_reg() const { return Op_RegF; }
	};

	#endif // SHARE_VM_OPTO_INTRINSICNODE_HPP