hotspot/src/share/vm/opto/machnode.hpp
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Thu, 27 May 2010 19:08:38 -0700
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6941466: Oracle rebranding changes for Hotspot repositories Summary: Change all the Sun copyrights to Oracle copyright Reviewed-by: ohair
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/*
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 * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * or visit www.oracle.com if you need additional information or have any
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 * questions.
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 *
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 */
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class BufferBlob;
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class CodeBuffer;
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class JVMState;
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class MachCallDynamicJavaNode;
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class MachCallJavaNode;
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class MachCallLeafNode;
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class MachCallNode;
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class MachCallRuntimeNode;
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class MachCallStaticJavaNode;
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class MachEpilogNode;
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class MachIfNode;
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class MachNullCheckNode;
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class MachOper;
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class MachProjNode;
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class MachPrologNode;
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class MachReturnNode;
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class MachSafePointNode;
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class MachSpillCopyNode;
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class Matcher;
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class PhaseRegAlloc;
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class RegMask;
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class State;
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//---------------------------MachOper------------------------------------------
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class MachOper : public ResourceObj {
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public:
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  // Allocate right next to the MachNodes in the same arena
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  void *operator new( size_t x, Compile* C ) { return C->node_arena()->Amalloc_D(x); }
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  // Opcode
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  virtual uint opcode() const = 0;
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  // Number of input edges.
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  // Generally at least 1
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  virtual uint num_edges() const { return 1; }
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  // Array of Register masks
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  virtual const RegMask *in_RegMask(int index) const;
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  // Methods to output the encoding of the operand
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  // Negate conditional branches.  Error for non-branch Nodes
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  virtual void negate();
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  // Return the value requested
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  // result register lookup, corresponding to int_format
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  virtual int  reg(PhaseRegAlloc *ra_, const Node *node)   const;
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  // input register lookup, corresponding to ext_format
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  virtual int  reg(PhaseRegAlloc *ra_, const Node *node, int idx)   const;
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  // helpers for MacroAssembler generation from ADLC
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  Register  as_Register(PhaseRegAlloc *ra_, const Node *node)   const {
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    return ::as_Register(reg(ra_, node));
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  }
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  Register  as_Register(PhaseRegAlloc *ra_, const Node *node, int idx)   const {
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    return ::as_Register(reg(ra_, node, idx));
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  }
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  FloatRegister  as_FloatRegister(PhaseRegAlloc *ra_, const Node *node)   const {
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    return ::as_FloatRegister(reg(ra_, node));
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  }
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  FloatRegister  as_FloatRegister(PhaseRegAlloc *ra_, const Node *node, int idx)   const {
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    return ::as_FloatRegister(reg(ra_, node, idx));
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  }
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#if defined(IA32) || defined(AMD64)
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  XMMRegister  as_XMMRegister(PhaseRegAlloc *ra_, const Node *node)   const {
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    return ::as_XMMRegister(reg(ra_, node));
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  }
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  XMMRegister  as_XMMRegister(PhaseRegAlloc *ra_, const Node *node, int idx)   const {
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    return ::as_XMMRegister(reg(ra_, node, idx));
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  }
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#endif
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  virtual intptr_t  constant() const;
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  virtual bool constant_is_oop() const;
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  virtual jdouble constantD() const;
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  virtual jfloat  constantF() const;
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  virtual jlong   constantL() const;
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  virtual TypeOopPtr *oop() const;
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  virtual int  ccode() const;
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  // A zero, default, indicates this value is not needed.
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  // May need to lookup the base register, as done in int_ and ext_format
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  virtual int  base (PhaseRegAlloc *ra_, const Node *node, int idx) const;
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  virtual int  index(PhaseRegAlloc *ra_, const Node *node, int idx) const;
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  virtual int  scale() const;
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  // Parameters needed to support MEMORY_INTERFACE access to stackSlot
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  virtual int  disp (PhaseRegAlloc *ra_, const Node *node, int idx) const;
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  // Check for PC-Relative displacement
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  virtual bool disp_is_oop() const;
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  virtual int  constant_disp() const;   // usu. 0, may return Type::OffsetBot
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  virtual int  base_position()  const;  // base edge position, or -1
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  virtual int  index_position() const;  // index edge position, or -1
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  // Access the TypeKlassPtr of operands with a base==RegI and disp==RegP
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  // Only returns non-null value for i486.ad's indOffset32X
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  virtual const TypePtr *disp_as_type() const { return NULL; }
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  // Return the label
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  virtual Label *label() const;
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  // Return the method's address
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  virtual intptr_t  method() const;
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  // Hash and compare over operands are currently identical
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  virtual uint  hash() const;
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  virtual uint  cmp( const MachOper &oper ) const;
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  // Virtual clone, since I do not know how big the MachOper is.
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  virtual MachOper *clone(Compile* C) const = 0;
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  // Return ideal Type from simple operands.  Fail for complex operands.
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  virtual const Type *type() const;
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  // Set an integer offset if we have one, or error otherwise
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  virtual void set_con( jint c0 ) { ShouldNotReachHere();  }
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#ifndef PRODUCT
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  // Return name of operand
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  virtual const char    *Name() const { return "???";}
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  // Methods to output the text version of the operand
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  virtual void int_format(PhaseRegAlloc *,const MachNode *node, outputStream *st) const = 0;
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  virtual void ext_format(PhaseRegAlloc *,const MachNode *node,int idx, outputStream *st) const=0;
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  virtual void dump_spec(outputStream *st) const; // Print per-operand info
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#endif
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};
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//------------------------------MachNode---------------------------------------
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// Base type for all machine specific nodes.  All node classes generated by the
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// ADLC inherit from this class.
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class MachNode : public Node {
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public:
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  MachNode() : Node((uint)0), _num_opnds(0), _opnds(NULL) {
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    init_class_id(Class_Mach);
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  }
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  // Required boilerplate
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  virtual uint size_of() const { return sizeof(MachNode); }
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  virtual int  Opcode() const;          // Always equal to MachNode
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  virtual uint rule() const = 0;        // Machine-specific opcode
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  // Number of inputs which come before the first operand.
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  // Generally at least 1, to skip the Control input
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  virtual uint oper_input_base() const { return 1; }
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  // Copy inputs and operands to new node of instruction.
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  // Called from cisc_version() and short_branch_version().
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  // !!!! The method's body is defined in ad_<arch>.cpp file.
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  void fill_new_machnode(MachNode *n, Compile* C) const;
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  // Return an equivalent instruction using memory for cisc_operand position
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  virtual MachNode *cisc_version(int offset, Compile* C);
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  // Modify this instruction's register mask to use stack version for cisc_operand
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  virtual void use_cisc_RegMask();
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  // Support for short branches
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  virtual MachNode *short_branch_version(Compile* C) { return NULL; }
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  bool may_be_short_branch() const { return (flags() & Flag_may_be_short_branch) != 0; }
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  // First index in _in[] corresponding to operand, or -1 if there is none
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  int  operand_index(uint operand) const;
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  // Register class input is expected in
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  virtual const RegMask &in_RegMask(uint) const;
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  // cisc-spillable instructions redefine for use by in_RegMask
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  virtual const RegMask *cisc_RegMask() const { return NULL; }
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  // If this instruction is a 2-address instruction, then return the
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  // index of the input which must match the output.  Not nessecary
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  // for instructions which bind the input and output register to the
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  // same singleton regiser (e.g., Intel IDIV which binds AX to be
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  // both an input and an output).  It is nessecary when the input and
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  // output have choices - but they must use the same choice.
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  virtual uint two_adr( ) const { return 0; }
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  // Array of complex operand pointers.  Each corresponds to zero or
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  // more leafs.  Must be set by MachNode constructor to point to an
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  // internal array of MachOpers.  The MachOper array is sized by
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  // specific MachNodes described in the ADL.
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  uint _num_opnds;
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  MachOper **_opnds;
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  uint  num_opnds() const { return _num_opnds; }
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  // Emit bytes into cbuf
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  virtual void  emit(CodeBuffer &cbuf, PhaseRegAlloc *ra_) const;
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  // Size of instruction in bytes
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  virtual uint  size(PhaseRegAlloc *ra_) const;
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  // Helper function that computes size by emitting code
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  virtual uint  emit_size(PhaseRegAlloc *ra_) const;
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  // Return the alignment required (in units of relocInfo::addr_unit())
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  // for this instruction (must be a power of 2)
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  virtual int   alignment_required() const { return 1; }
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  // Return the padding (in bytes) to be emitted before this
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  // instruction to properly align it.
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  virtual int   compute_padding(int current_offset) const { return 0; }
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  // Return number of relocatable values contained in this instruction
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  virtual int   reloc() const { return 0; }
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  // Return number of words used for double constants in this instruction
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  virtual int   const_size() const { return 0; }
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  // Hash and compare over operands.  Used to do GVN on machine Nodes.
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  virtual uint  hash() const;
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  virtual uint  cmp( const Node &n ) const;
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  // Expand method for MachNode, replaces nodes representing pseudo
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  // instructions with a set of nodes which represent real machine
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  // instructions and compute the same value.
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  virtual MachNode *Expand( State *, Node_List &proj_list, Node* mem ) { return this; }
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  // Bottom_type call; value comes from operand0
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  virtual const class Type *bottom_type() const { return _opnds[0]->type(); }
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  virtual uint ideal_reg() const { const Type *t = _opnds[0]->type(); return t == TypeInt::CC ? Op_RegFlags : Matcher::base2reg[t->base()]; }
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  // If this is a memory op, return the base pointer and fixed offset.
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  // If there are no such, return NULL.  If there are multiple addresses
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  // or the address is indeterminate (rare cases) then return (Node*)-1,
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  // which serves as node bottom.
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  // If the offset is not statically determined, set it to Type::OffsetBot.
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  // This method is free to ignore stack slots if that helps.
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  #define TYPE_PTR_SENTINAL  ((const TypePtr*)-1)
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  // Passing TYPE_PTR_SENTINAL as adr_type asks for computation of the adr_type if possible
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  const Node* get_base_and_disp(intptr_t &offset, const TypePtr* &adr_type) const;
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  // Helper for get_base_and_disp: find the base and index input nodes.
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  // Returns the MachOper as determined by memory_operand(), for use, if
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  // needed by the caller. If (MachOper *)-1 is returned, base and index
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  // are set to NodeSentinel. If (MachOper *) NULL is returned, base and
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  // index are set to NULL.
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  const MachOper* memory_inputs(Node* &base, Node* &index) const;
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  // Helper for memory_inputs:  Which operand carries the necessary info?
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  // By default, returns NULL, which means there is no such operand.
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  // If it returns (MachOper*)-1, this means there are multiple memories.
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  virtual const MachOper* memory_operand() const { return NULL; }
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  // Call "get_base_and_disp" to decide which category of memory is used here.
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  virtual const class TypePtr *adr_type() const;
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  // Negate conditional branches.  Error for non-branch Nodes
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  virtual void negate();
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  // Apply peephole rule(s) to this instruction
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  virtual MachNode *peephole( Block *block, int block_index, PhaseRegAlloc *ra_, int &deleted, Compile* C );
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  // Check for PC-Relative addressing
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  bool is_pc_relative() const { return (flags() & Flag_is_pc_relative) != 0; }
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  // Top-level ideal Opcode matched
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  virtual int ideal_Opcode()     const { return Op_Node; }
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  // Set the branch inside jump MachNodes.  Error for non-branch Nodes.
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  virtual void label_set( Label& label, uint block_num );
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  // Adds the label for the case
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  virtual void add_case_label( int switch_val, Label* blockLabel);
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  // Set the absolute address for methods
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  virtual void method_set( intptr_t addr );
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  // Should we clone rather than spill this instruction?
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  bool rematerialize() const;
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  // Get the pipeline info
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  static const Pipeline *pipeline_class();
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  virtual const Pipeline *pipeline() const;
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#ifndef PRODUCT
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  virtual const char *Name() const = 0; // Machine-specific name
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  virtual void dump_spec(outputStream *st) const; // Print per-node info
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  void         dump_format(PhaseRegAlloc *ra, outputStream *st) const; // access to virtual
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#endif
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};
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//------------------------------MachIdealNode----------------------------
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// Machine specific versions of nodes that must be defined by user.
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// These are not converted by matcher from ideal nodes to machine nodes
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// but are inserted into the code by the compiler.
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class MachIdealNode : public MachNode {
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public:
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  MachIdealNode( ) {}
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  // Define the following defaults for non-matched machine nodes
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  virtual uint oper_input_base() const { return 0; }
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  virtual uint rule()            const { return 9999999; }
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  virtual const class Type *bottom_type() const { return _opnds == NULL ? Type::CONTROL : MachNode::bottom_type(); }
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};
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//------------------------------MachTypeNode----------------------------
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// Machine Nodes that need to retain a known Type.
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class MachTypeNode : public MachNode {
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  virtual uint size_of() const { return sizeof(*this); } // Size is bigger
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public:
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  const Type *_bottom_type;
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  virtual const class Type *bottom_type() const { return _bottom_type; }
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#ifndef PRODUCT
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  virtual void dump_spec(outputStream *st) const;
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#endif
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};
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//------------------------------MachBreakpointNode----------------------------
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// Machine breakpoint or interrupt Node
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class MachBreakpointNode : public MachIdealNode {
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public:
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  MachBreakpointNode( ) {}
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  virtual void emit(CodeBuffer &cbuf, PhaseRegAlloc *ra_) const;
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  virtual uint size(PhaseRegAlloc *ra_) const;
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#ifndef PRODUCT
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  virtual const char *Name() const { return "Breakpoint"; }
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  virtual void format( PhaseRegAlloc *, outputStream *st ) const;
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#endif
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};
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//------------------------------MachUEPNode-----------------------------------
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// Machine Unvalidated Entry Point Node
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class MachUEPNode : public MachIdealNode {
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public:
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  MachUEPNode( ) {}
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  virtual void emit(CodeBuffer &cbuf, PhaseRegAlloc *ra_) const;
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  virtual uint size(PhaseRegAlloc *ra_) const;
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#ifndef PRODUCT
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  virtual const char *Name() const { return "Unvalidated-Entry-Point"; }
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  virtual void format( PhaseRegAlloc *, outputStream *st ) const;
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#endif
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};
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//------------------------------MachPrologNode--------------------------------
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// Machine function Prolog Node
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class MachPrologNode : public MachIdealNode {
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public:
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  MachPrologNode( ) {}
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  virtual void emit(CodeBuffer &cbuf, PhaseRegAlloc *ra_) const;
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  virtual uint size(PhaseRegAlloc *ra_) const;
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  virtual int reloc() const;
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#ifndef PRODUCT
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  virtual const char *Name() const { return "Prolog"; }
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  virtual void format( PhaseRegAlloc *, outputStream *st ) const;
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#endif
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};
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//------------------------------MachEpilogNode--------------------------------
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// Machine function Epilog Node
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class MachEpilogNode : public MachIdealNode {
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public:
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  MachEpilogNode(bool do_poll = false) : _do_polling(do_poll) {}
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  virtual void emit(CodeBuffer &cbuf, PhaseRegAlloc *ra_) const;
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  virtual uint size(PhaseRegAlloc *ra_) const;
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  virtual int reloc() const;
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  virtual const Pipeline *pipeline() const;
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  bool _do_polling;
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public:
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  bool do_polling() const { return _do_polling; }
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  // Offset of safepoint from the beginning of the node
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  int safepoint_offset() const;
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#ifndef PRODUCT
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  virtual const char *Name() const { return "Epilog"; }
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  virtual void format( PhaseRegAlloc *, outputStream *st ) const;
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#endif
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};
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   395
489c9b5090e2 Initial load
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parents:
diff changeset
   396
//------------------------------MachNopNode-----------------------------------
489c9b5090e2 Initial load
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parents:
diff changeset
   397
// Machine function Nop Node
489c9b5090e2 Initial load
duke
parents:
diff changeset
   398
class MachNopNode : public MachIdealNode {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   399
private:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   400
  int _count;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   401
public:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   402
  MachNopNode( ) : _count(1) {}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   403
  MachNopNode( int count ) : _count(count) {}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   404
  virtual void emit(CodeBuffer &cbuf, PhaseRegAlloc *ra_) const;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   405
  virtual uint size(PhaseRegAlloc *ra_) const;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   406
489c9b5090e2 Initial load
duke
parents:
diff changeset
   407
  virtual const class Type *bottom_type() const { return Type::CONTROL; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   408
489c9b5090e2 Initial load
duke
parents:
diff changeset
   409
  virtual int ideal_Opcode() const { return Op_Con; } // bogus; see output.cpp
489c9b5090e2 Initial load
duke
parents:
diff changeset
   410
  virtual const Pipeline *pipeline() const;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   411
#ifndef PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
   412
  virtual const char *Name() const { return "Nop"; }
489c9b5090e2 Initial load
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parents:
diff changeset
   413
  virtual void format( PhaseRegAlloc *, outputStream *st ) const;
489c9b5090e2 Initial load
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parents:
diff changeset
   414
  virtual void dump_spec(outputStream *st) const { } // No per-operand info
489c9b5090e2 Initial load
duke
parents:
diff changeset
   415
#endif
489c9b5090e2 Initial load
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parents:
diff changeset
   416
};
489c9b5090e2 Initial load
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parents:
diff changeset
   417
489c9b5090e2 Initial load
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parents:
diff changeset
   418
//------------------------------MachSpillCopyNode------------------------------
489c9b5090e2 Initial load
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parents:
diff changeset
   419
// Machine SpillCopy Node.  Copies 1 or 2 words from any location to any
489c9b5090e2 Initial load
duke
parents:
diff changeset
   420
// location (stack or register).
489c9b5090e2 Initial load
duke
parents:
diff changeset
   421
class MachSpillCopyNode : public MachIdealNode {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   422
  const RegMask *_in;           // RegMask for input
489c9b5090e2 Initial load
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parents:
diff changeset
   423
  const RegMask *_out;          // RegMask for output
489c9b5090e2 Initial load
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parents:
diff changeset
   424
  const Type *_type;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   425
public:
489c9b5090e2 Initial load
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parents:
diff changeset
   426
  MachSpillCopyNode( Node *n, const RegMask &in, const RegMask &out ) :
489c9b5090e2 Initial load
duke
parents:
diff changeset
   427
    MachIdealNode(), _in(&in), _out(&out), _type(n->bottom_type()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   428
    init_class_id(Class_MachSpillCopy);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   429
    init_flags(Flag_is_Copy);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   430
    add_req(NULL);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   431
    add_req(n);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   432
  }
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duke
parents:
diff changeset
   433
  virtual uint size_of() const { return sizeof(*this); }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   434
  void set_out_RegMask(const RegMask &out) { _out = &out; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   435
  void set_in_RegMask(const RegMask &in) { _in = &in; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   436
  virtual const RegMask &out_RegMask() const { return *_out; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   437
  virtual const RegMask &in_RegMask(uint) const { return *_in; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   438
  virtual const class Type *bottom_type() const { return _type; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   439
  virtual uint ideal_reg() const { return Matcher::base2reg[_type->base()]; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   440
  virtual uint oper_input_base() const { return 1; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   441
  uint implementation( CodeBuffer *cbuf, PhaseRegAlloc *ra_, bool do_size, outputStream* st ) const;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   442
489c9b5090e2 Initial load
duke
parents:
diff changeset
   443
  virtual void emit(CodeBuffer &cbuf, PhaseRegAlloc *ra_) const;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   444
  virtual uint size(PhaseRegAlloc *ra_) const;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   445
489c9b5090e2 Initial load
duke
parents:
diff changeset
   446
#ifndef PRODUCT
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parents:
diff changeset
   447
  virtual const char *Name() const { return "MachSpillCopy"; }
489c9b5090e2 Initial load
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parents:
diff changeset
   448
  virtual void format( PhaseRegAlloc *, outputStream *st ) const;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   449
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
   450
};
489c9b5090e2 Initial load
duke
parents:
diff changeset
   451
489c9b5090e2 Initial load
duke
parents:
diff changeset
   452
//------------------------------MachNullChkNode--------------------------------
489c9b5090e2 Initial load
duke
parents:
diff changeset
   453
// Machine-dependent null-pointer-check Node.  Points a real MachNode that is
489c9b5090e2 Initial load
duke
parents:
diff changeset
   454
// also some kind of memory op.  Turns the indicated MachNode into a
489c9b5090e2 Initial load
duke
parents:
diff changeset
   455
// conditional branch with good latency on the ptr-not-null path and awful
489c9b5090e2 Initial load
duke
parents:
diff changeset
   456
// latency on the pointer-is-null path.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   457
489c9b5090e2 Initial load
duke
parents:
diff changeset
   458
class MachNullCheckNode : public MachIdealNode {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   459
public:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   460
  const uint _vidx;             // Index of memop being tested
489c9b5090e2 Initial load
duke
parents:
diff changeset
   461
  MachNullCheckNode( Node *ctrl, Node *memop, uint vidx ) : MachIdealNode(), _vidx(vidx) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   462
    init_class_id(Class_MachNullCheck);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   463
    init_flags(Flag_is_Branch | Flag_is_pc_relative);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   464
    add_req(ctrl);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   465
    add_req(memop);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   466
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   467
489c9b5090e2 Initial load
duke
parents:
diff changeset
   468
  virtual void emit(CodeBuffer &cbuf, PhaseRegAlloc *ra_) const;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   469
  virtual bool pinned() const { return true; };
489c9b5090e2 Initial load
duke
parents:
diff changeset
   470
  virtual void negate() { }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   471
  virtual const class Type *bottom_type() const { return TypeTuple::IFBOTH; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   472
  virtual uint ideal_reg() const { return NotAMachineReg; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   473
  virtual const RegMask &in_RegMask(uint) const;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   474
  virtual const RegMask &out_RegMask() const { return RegMask::Empty; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   475
#ifndef PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
   476
  virtual const char *Name() const { return "NullCheck"; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   477
  virtual void format( PhaseRegAlloc *, outputStream *st ) const;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   478
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
   479
};
489c9b5090e2 Initial load
duke
parents:
diff changeset
   480
489c9b5090e2 Initial load
duke
parents:
diff changeset
   481
//------------------------------MachProjNode----------------------------------
489c9b5090e2 Initial load
duke
parents:
diff changeset
   482
// Machine-dependent Ideal projections (how is that for an oxymoron).  Really
489c9b5090e2 Initial load
duke
parents:
diff changeset
   483
// just MachNodes made by the Ideal world that replicate simple projections
489c9b5090e2 Initial load
duke
parents:
diff changeset
   484
// but with machine-dependent input & output register masks.  Generally
489c9b5090e2 Initial load
duke
parents:
diff changeset
   485
// produced as part of calling conventions.  Normally I make MachNodes as part
489c9b5090e2 Initial load
duke
parents:
diff changeset
   486
// of the Matcher process, but the Matcher is ill suited to issues involving
489c9b5090e2 Initial load
duke
parents:
diff changeset
   487
// frame handling, so frame handling is all done in the Ideal world with
489c9b5090e2 Initial load
duke
parents:
diff changeset
   488
// occasional callbacks to the machine model for important info.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   489
class MachProjNode : public ProjNode {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   490
public:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   491
  MachProjNode( Node *multi, uint con, const RegMask &out, uint ideal_reg ) : ProjNode(multi,con), _rout(out), _ideal_reg(ideal_reg) {}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   492
  RegMask _rout;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   493
  const uint  _ideal_reg;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   494
  enum projType {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   495
    unmatched_proj = 0,         // Projs for Control, I/O, memory not matched
489c9b5090e2 Initial load
duke
parents:
diff changeset
   496
    fat_proj       = 999        // Projs killing many regs, defined by _rout
489c9b5090e2 Initial load
duke
parents:
diff changeset
   497
  };
489c9b5090e2 Initial load
duke
parents:
diff changeset
   498
  virtual int   Opcode() const;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   499
  virtual const Type *bottom_type() const;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   500
  virtual const TypePtr *adr_type() const;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   501
  virtual const RegMask &in_RegMask(uint) const { return RegMask::Empty; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   502
  virtual const RegMask &out_RegMask() const { return _rout; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   503
  virtual uint  ideal_reg() const { return _ideal_reg; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   504
  // Need size_of() for virtual ProjNode::clone()
489c9b5090e2 Initial load
duke
parents:
diff changeset
   505
  virtual uint  size_of() const { return sizeof(MachProjNode); }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   506
#ifndef PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
   507
  virtual void dump_spec(outputStream *st) const;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   508
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
   509
};
489c9b5090e2 Initial load
duke
parents:
diff changeset
   510
489c9b5090e2 Initial load
duke
parents:
diff changeset
   511
//------------------------------MachIfNode-------------------------------------
489c9b5090e2 Initial load
duke
parents:
diff changeset
   512
// Machine-specific versions of IfNodes
489c9b5090e2 Initial load
duke
parents:
diff changeset
   513
class MachIfNode : public MachNode {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   514
  virtual uint size_of() const { return sizeof(*this); } // Size is bigger
489c9b5090e2 Initial load
duke
parents:
diff changeset
   515
public:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   516
  float _prob;                  // Probability branch goes either way
489c9b5090e2 Initial load
duke
parents:
diff changeset
   517
  float _fcnt;                  // Frequency counter
489c9b5090e2 Initial load
duke
parents:
diff changeset
   518
  MachIfNode() : MachNode() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   519
    init_class_id(Class_MachIf);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   520
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   521
#ifndef PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
   522
  virtual void dump_spec(outputStream *st) const;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   523
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
   524
};
489c9b5090e2 Initial load
duke
parents:
diff changeset
   525
489c9b5090e2 Initial load
duke
parents:
diff changeset
   526
//------------------------------MachFastLockNode-------------------------------------
489c9b5090e2 Initial load
duke
parents:
diff changeset
   527
// Machine-specific versions of FastLockNodes
489c9b5090e2 Initial load
duke
parents:
diff changeset
   528
class MachFastLockNode : public MachNode {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   529
  virtual uint size_of() const { return sizeof(*this); } // Size is bigger
489c9b5090e2 Initial load
duke
parents:
diff changeset
   530
public:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   531
  BiasedLockingCounters* _counters;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   532
489c9b5090e2 Initial load
duke
parents:
diff changeset
   533
  MachFastLockNode() : MachNode() {}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   534
};
489c9b5090e2 Initial load
duke
parents:
diff changeset
   535
489c9b5090e2 Initial load
duke
parents:
diff changeset
   536
//------------------------------MachReturnNode--------------------------------
489c9b5090e2 Initial load
duke
parents:
diff changeset
   537
// Machine-specific versions of subroutine returns
489c9b5090e2 Initial load
duke
parents:
diff changeset
   538
class MachReturnNode : public MachNode {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   539
  virtual uint size_of() const; // Size is bigger
489c9b5090e2 Initial load
duke
parents:
diff changeset
   540
public:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   541
  RegMask *_in_rms;             // Input register masks, set during allocation
489c9b5090e2 Initial load
duke
parents:
diff changeset
   542
  ReallocMark _nesting;         // assertion check for reallocations
489c9b5090e2 Initial load
duke
parents:
diff changeset
   543
  const TypePtr* _adr_type;     // memory effects of call or return
489c9b5090e2 Initial load
duke
parents:
diff changeset
   544
  MachReturnNode() : MachNode() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   545
    init_class_id(Class_MachReturn);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   546
    _adr_type = TypePtr::BOTTOM; // the default: all of memory
489c9b5090e2 Initial load
duke
parents:
diff changeset
   547
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   548
489c9b5090e2 Initial load
duke
parents:
diff changeset
   549
  void set_adr_type(const TypePtr* atp) { _adr_type = atp; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   550
489c9b5090e2 Initial load
duke
parents:
diff changeset
   551
  virtual const RegMask &in_RegMask(uint) const;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   552
  virtual bool pinned() const { return true; };
489c9b5090e2 Initial load
duke
parents:
diff changeset
   553
  virtual const TypePtr *adr_type() const;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   554
};
489c9b5090e2 Initial load
duke
parents:
diff changeset
   555
489c9b5090e2 Initial load
duke
parents:
diff changeset
   556
//------------------------------MachSafePointNode-----------------------------
489c9b5090e2 Initial load
duke
parents:
diff changeset
   557
// Machine-specific versions of safepoints
489c9b5090e2 Initial load
duke
parents:
diff changeset
   558
class MachSafePointNode : public MachReturnNode {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   559
public:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   560
  OopMap*         _oop_map;     // Array of OopMap info (8-bit char) for GC
489c9b5090e2 Initial load
duke
parents:
diff changeset
   561
  JVMState*       _jvms;        // Pointer to list of JVM State Objects
489c9b5090e2 Initial load
duke
parents:
diff changeset
   562
  uint            _jvmadj;      // Extra delta to jvms indexes (mach. args)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   563
  OopMap*         oop_map() const { return _oop_map; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   564
  void            set_oop_map(OopMap* om) { _oop_map = om; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   565
489c9b5090e2 Initial load
duke
parents:
diff changeset
   566
  MachSafePointNode() : MachReturnNode(), _oop_map(NULL), _jvms(NULL), _jvmadj(0) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   567
    init_class_id(Class_MachSafePoint);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   568
    init_flags(Flag_is_safepoint_node);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   569
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   570
489c9b5090e2 Initial load
duke
parents:
diff changeset
   571
  virtual JVMState* jvms() const { return _jvms; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   572
  void set_jvms(JVMState* s) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   573
    _jvms = s;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   574
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   575
  bool is_safepoint_node() const { return (flags() & Flag_is_safepoint_node) != 0; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   576
  virtual const Type    *bottom_type() const;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   577
489c9b5090e2 Initial load
duke
parents:
diff changeset
   578
  virtual const RegMask &in_RegMask(uint) const;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   579
489c9b5090e2 Initial load
duke
parents:
diff changeset
   580
  // Functionality from old debug nodes
489c9b5090e2 Initial load
duke
parents:
diff changeset
   581
  Node *returnadr() const { return in(TypeFunc::ReturnAdr); }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   582
  Node *frameptr () const { return in(TypeFunc::FramePtr); }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   583
489c9b5090e2 Initial load
duke
parents:
diff changeset
   584
  Node *local(const JVMState* jvms, uint idx) const {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   585
    assert(verify_jvms(jvms), "jvms must match");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   586
    return in(_jvmadj + jvms->locoff() + idx);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   587
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   588
  Node *stack(const JVMState* jvms, uint idx) const {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   589
    assert(verify_jvms(jvms), "jvms must match");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   590
    return in(_jvmadj + jvms->stkoff() + idx);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   591
 }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   592
  Node *monitor_obj(const JVMState* jvms, uint idx) const {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   593
    assert(verify_jvms(jvms), "jvms must match");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   594
    return in(_jvmadj + jvms->monitor_obj_offset(idx));
489c9b5090e2 Initial load
duke
parents:
diff changeset
   595
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   596
  Node *monitor_box(const JVMState* jvms, uint idx) const {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   597
    assert(verify_jvms(jvms), "jvms must match");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   598
    return in(_jvmadj + jvms->monitor_box_offset(idx));
489c9b5090e2 Initial load
duke
parents:
diff changeset
   599
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   600
  void  set_local(const JVMState* jvms, uint idx, Node *c) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   601
    assert(verify_jvms(jvms), "jvms must match");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   602
    set_req(_jvmadj + jvms->locoff() + idx, c);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   603
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   604
  void  set_stack(const JVMState* jvms, uint idx, Node *c) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   605
    assert(verify_jvms(jvms), "jvms must match");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   606
    set_req(_jvmadj + jvms->stkoff() + idx, c);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   607
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   608
  void  set_monitor(const JVMState* jvms, uint idx, Node *c) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   609
    assert(verify_jvms(jvms), "jvms must match");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   610
    set_req(_jvmadj + jvms->monoff() + idx, c);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   611
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   612
};
489c9b5090e2 Initial load
duke
parents:
diff changeset
   613
489c9b5090e2 Initial load
duke
parents:
diff changeset
   614
//------------------------------MachCallNode----------------------------------
489c9b5090e2 Initial load
duke
parents:
diff changeset
   615
// Machine-specific versions of subroutine calls
489c9b5090e2 Initial load
duke
parents:
diff changeset
   616
class MachCallNode : public MachSafePointNode {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   617
protected:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   618
  virtual uint hash() const { return NO_HASH; }  // CFG nodes do not hash
489c9b5090e2 Initial load
duke
parents:
diff changeset
   619
  virtual uint cmp( const Node &n ) const;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   620
  virtual uint size_of() const = 0; // Size is bigger
489c9b5090e2 Initial load
duke
parents:
diff changeset
   621
public:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   622
  const TypeFunc *_tf;        // Function type
489c9b5090e2 Initial load
duke
parents:
diff changeset
   623
  address      _entry_point;  // Address of the method being called
489c9b5090e2 Initial load
duke
parents:
diff changeset
   624
  float        _cnt;          // Estimate of number of times called
489c9b5090e2 Initial load
duke
parents:
diff changeset
   625
  uint         _argsize;      // Size of argument block on stack
489c9b5090e2 Initial load
duke
parents:
diff changeset
   626
489c9b5090e2 Initial load
duke
parents:
diff changeset
   627
  const TypeFunc* tf()        const { return _tf; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   628
  const address entry_point() const { return _entry_point; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   629
  const float   cnt()         const { return _cnt; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   630
  uint argsize()              const { return _argsize; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   631
489c9b5090e2 Initial load
duke
parents:
diff changeset
   632
  void set_tf(const TypeFunc* tf) { _tf = tf; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   633
  void set_entry_point(address p) { _entry_point = p; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   634
  void set_cnt(float c)           { _cnt = c; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   635
  void set_argsize(int s)         { _argsize = s; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   636
489c9b5090e2 Initial load
duke
parents:
diff changeset
   637
  MachCallNode() : MachSafePointNode() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   638
    init_class_id(Class_MachCall);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   639
    init_flags(Flag_is_Call);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   640
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   641
489c9b5090e2 Initial load
duke
parents:
diff changeset
   642
  virtual const Type *bottom_type() const;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   643
  virtual bool  pinned() const { return false; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   644
  virtual const Type *Value( PhaseTransform *phase ) const;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   645
  virtual const RegMask &in_RegMask(uint) const;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   646
  virtual int ret_addr_offset() { return 0; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   647
489c9b5090e2 Initial load
duke
parents:
diff changeset
   648
  bool returns_long() const { return tf()->return_type() == T_LONG; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   649
  bool return_value_is_used() const;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   650
#ifndef PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
   651
  virtual void dump_spec(outputStream *st) const;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   652
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
   653
};
489c9b5090e2 Initial load
duke
parents:
diff changeset
   654
489c9b5090e2 Initial load
duke
parents:
diff changeset
   655
//------------------------------MachCallJavaNode------------------------------
489c9b5090e2 Initial load
duke
parents:
diff changeset
   656
// "Base" class for machine-specific versions of subroutine calls
489c9b5090e2 Initial load
duke
parents:
diff changeset
   657
class MachCallJavaNode : public MachCallNode {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   658
protected:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   659
  virtual uint cmp( const Node &n ) const;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   660
  virtual uint size_of() const; // Size is bigger
489c9b5090e2 Initial load
duke
parents:
diff changeset
   661
public:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   662
  ciMethod* _method;             // Method being direct called
489c9b5090e2 Initial load
duke
parents:
diff changeset
   663
  int        _bci;               // Byte Code index of call byte code
489c9b5090e2 Initial load
duke
parents:
diff changeset
   664
  bool       _optimized_virtual; // Tells if node is a static call or an optimized virtual
4566
b363f6ef4068 6829187: compiler optimizations required for JSR 292
twisti
parents: 1
diff changeset
   665
  bool       _method_handle_invoke;   // Tells if the call has to preserve SP
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   666
  MachCallJavaNode() : MachCallNode() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   667
    init_class_id(Class_MachCallJava);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   668
  }
4566
b363f6ef4068 6829187: compiler optimizations required for JSR 292
twisti
parents: 1
diff changeset
   669
b363f6ef4068 6829187: compiler optimizations required for JSR 292
twisti
parents: 1
diff changeset
   670
  virtual const RegMask &in_RegMask(uint) const;
b363f6ef4068 6829187: compiler optimizations required for JSR 292
twisti
parents: 1
diff changeset
   671
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   672
#ifndef PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
   673
  virtual void dump_spec(outputStream *st) const;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   674
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
   675
};
489c9b5090e2 Initial load
duke
parents:
diff changeset
   676
489c9b5090e2 Initial load
duke
parents:
diff changeset
   677
//------------------------------MachCallStaticJavaNode------------------------
489c9b5090e2 Initial load
duke
parents:
diff changeset
   678
// Machine-specific versions of monomorphic subroutine calls
489c9b5090e2 Initial load
duke
parents:
diff changeset
   679
class MachCallStaticJavaNode : public MachCallJavaNode {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   680
  virtual uint cmp( const Node &n ) const;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   681
  virtual uint size_of() const; // Size is bigger
489c9b5090e2 Initial load
duke
parents:
diff changeset
   682
public:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   683
  const char *_name;            // Runtime wrapper name
489c9b5090e2 Initial load
duke
parents:
diff changeset
   684
  MachCallStaticJavaNode() : MachCallJavaNode() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   685
    init_class_id(Class_MachCallStaticJava);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   686
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   687
489c9b5090e2 Initial load
duke
parents:
diff changeset
   688
  // If this is an uncommon trap, return the request code, else zero.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   689
  int uncommon_trap_request() const;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   690
489c9b5090e2 Initial load
duke
parents:
diff changeset
   691
  virtual int ret_addr_offset();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   692
#ifndef PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
   693
  virtual void dump_spec(outputStream *st) const;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   694
  void dump_trap_args(outputStream *st) const;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   695
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
   696
};
489c9b5090e2 Initial load
duke
parents:
diff changeset
   697
489c9b5090e2 Initial load
duke
parents:
diff changeset
   698
//------------------------------MachCallDynamicJavaNode------------------------
489c9b5090e2 Initial load
duke
parents:
diff changeset
   699
// Machine-specific versions of possibly megamorphic subroutine calls
489c9b5090e2 Initial load
duke
parents:
diff changeset
   700
class MachCallDynamicJavaNode : public MachCallJavaNode {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   701
public:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   702
  int _vtable_index;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   703
  MachCallDynamicJavaNode() : MachCallJavaNode() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   704
    init_class_id(Class_MachCallDynamicJava);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   705
    DEBUG_ONLY(_vtable_index = -99);  // throw an assert if uninitialized
489c9b5090e2 Initial load
duke
parents:
diff changeset
   706
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   707
  virtual int ret_addr_offset();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   708
#ifndef PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
   709
  virtual void dump_spec(outputStream *st) const;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   710
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
   711
};
489c9b5090e2 Initial load
duke
parents:
diff changeset
   712
489c9b5090e2 Initial load
duke
parents:
diff changeset
   713
//------------------------------MachCallRuntimeNode----------------------------
489c9b5090e2 Initial load
duke
parents:
diff changeset
   714
// Machine-specific versions of subroutine calls
489c9b5090e2 Initial load
duke
parents:
diff changeset
   715
class MachCallRuntimeNode : public MachCallNode {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   716
  virtual uint cmp( const Node &n ) const;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   717
  virtual uint size_of() const; // Size is bigger
489c9b5090e2 Initial load
duke
parents:
diff changeset
   718
public:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   719
  const char *_name;            // Printable name, if _method is NULL
489c9b5090e2 Initial load
duke
parents:
diff changeset
   720
  MachCallRuntimeNode() : MachCallNode() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   721
    init_class_id(Class_MachCallRuntime);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   722
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   723
  virtual int ret_addr_offset();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   724
#ifndef PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
   725
  virtual void dump_spec(outputStream *st) const;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   726
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
   727
};
489c9b5090e2 Initial load
duke
parents:
diff changeset
   728
489c9b5090e2 Initial load
duke
parents:
diff changeset
   729
class MachCallLeafNode: public MachCallRuntimeNode {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   730
public:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   731
  MachCallLeafNode() : MachCallRuntimeNode() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   732
    init_class_id(Class_MachCallLeaf);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   733
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   734
};
489c9b5090e2 Initial load
duke
parents:
diff changeset
   735
489c9b5090e2 Initial load
duke
parents:
diff changeset
   736
//------------------------------MachHaltNode-----------------------------------
489c9b5090e2 Initial load
duke
parents:
diff changeset
   737
// Machine-specific versions of halt nodes
489c9b5090e2 Initial load
duke
parents:
diff changeset
   738
class MachHaltNode : public MachReturnNode {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   739
public:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   740
  virtual JVMState* jvms() const;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   741
};
489c9b5090e2 Initial load
duke
parents:
diff changeset
   742
489c9b5090e2 Initial load
duke
parents:
diff changeset
   743
489c9b5090e2 Initial load
duke
parents:
diff changeset
   744
//------------------------------MachTempNode-----------------------------------
489c9b5090e2 Initial load
duke
parents:
diff changeset
   745
// Node used by the adlc to construct inputs to represent temporary registers
489c9b5090e2 Initial load
duke
parents:
diff changeset
   746
class MachTempNode : public MachNode {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   747
private:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   748
  MachOper *_opnd_array[1];
489c9b5090e2 Initial load
duke
parents:
diff changeset
   749
489c9b5090e2 Initial load
duke
parents:
diff changeset
   750
public:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   751
  virtual const RegMask &out_RegMask() const { return *_opnds[0]->in_RegMask(0); }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   752
  virtual uint rule() const { return 9999999; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   753
  virtual void emit(CodeBuffer &cbuf, PhaseRegAlloc *ra_) const {}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   754
489c9b5090e2 Initial load
duke
parents:
diff changeset
   755
  MachTempNode(MachOper* oper) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   756
    init_class_id(Class_MachTemp);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   757
    _num_opnds = 1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   758
    _opnds = _opnd_array;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   759
    add_req(NULL);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   760
    _opnds[0] = oper;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   761
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   762
  virtual uint size_of() const { return sizeof(MachTempNode); }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   763
489c9b5090e2 Initial load
duke
parents:
diff changeset
   764
#ifndef PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
   765
  virtual void format(PhaseRegAlloc *, outputStream *st ) const {}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   766
  virtual const char *Name() const { return "MachTemp";}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   767
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
   768
};
489c9b5090e2 Initial load
duke
parents:
diff changeset
   769
489c9b5090e2 Initial load
duke
parents:
diff changeset
   770
489c9b5090e2 Initial load
duke
parents:
diff changeset
   771
489c9b5090e2 Initial load
duke
parents:
diff changeset
   772
//------------------------------labelOper--------------------------------------
489c9b5090e2 Initial load
duke
parents:
diff changeset
   773
// Machine-independent version of label operand
489c9b5090e2 Initial load
duke
parents:
diff changeset
   774
class labelOper : public MachOper {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   775
private:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   776
  virtual uint           num_edges() const { return 0; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   777
public:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   778
  // Supported for fixed size branches
489c9b5090e2 Initial load
duke
parents:
diff changeset
   779
  Label* _label;                // Label for branch(es)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   780
489c9b5090e2 Initial load
duke
parents:
diff changeset
   781
  uint _block_num;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   782
489c9b5090e2 Initial load
duke
parents:
diff changeset
   783
  labelOper() : _block_num(0), _label(0) {}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   784
489c9b5090e2 Initial load
duke
parents:
diff changeset
   785
  labelOper(Label* label, uint block_num) : _label(label), _block_num(block_num) {}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   786
489c9b5090e2 Initial load
duke
parents:
diff changeset
   787
  labelOper(labelOper* l) : _label(l->_label) , _block_num(l->_block_num) {}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   788
489c9b5090e2 Initial load
duke
parents:
diff changeset
   789
  virtual MachOper *clone(Compile* C) const;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   790
489c9b5090e2 Initial load
duke
parents:
diff changeset
   791
  virtual Label *label() const { return _label; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   792
489c9b5090e2 Initial load
duke
parents:
diff changeset
   793
  virtual uint           opcode() const;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   794
489c9b5090e2 Initial load
duke
parents:
diff changeset
   795
  virtual uint           hash()   const;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   796
  virtual uint           cmp( const MachOper &oper ) const;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   797
#ifndef PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
   798
  virtual const char    *Name()   const { return "Label";}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   799
489c9b5090e2 Initial load
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parents:
diff changeset
   800
  virtual void int_format(PhaseRegAlloc *ra, const MachNode *node, outputStream *st) const;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   801
  virtual void ext_format(PhaseRegAlloc *ra, const MachNode *node, int idx, outputStream *st) const { int_format( ra, node, st ); }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   802
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
   803
};
489c9b5090e2 Initial load
duke
parents:
diff changeset
   804
489c9b5090e2 Initial load
duke
parents:
diff changeset
   805
489c9b5090e2 Initial load
duke
parents:
diff changeset
   806
//------------------------------methodOper--------------------------------------
489c9b5090e2 Initial load
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parents:
diff changeset
   807
// Machine-independent version of method operand
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parents:
diff changeset
   808
class methodOper : public MachOper {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   809
private:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   810
  virtual uint           num_edges() const { return 0; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   811
public:
489c9b5090e2 Initial load
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parents:
diff changeset
   812
  intptr_t _method;             // Address of method
489c9b5090e2 Initial load
duke
parents:
diff changeset
   813
  methodOper() :   _method(0) {}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   814
  methodOper(intptr_t method) : _method(method)  {}
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duke
parents:
diff changeset
   815
489c9b5090e2 Initial load
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parents:
diff changeset
   816
  virtual MachOper *clone(Compile* C) const;
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duke
parents:
diff changeset
   817
489c9b5090e2 Initial load
duke
parents:
diff changeset
   818
  virtual intptr_t method() const { return _method; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   819
489c9b5090e2 Initial load
duke
parents:
diff changeset
   820
  virtual uint           opcode() const;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   821
489c9b5090e2 Initial load
duke
parents:
diff changeset
   822
  virtual uint           hash()   const;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   823
  virtual uint           cmp( const MachOper &oper ) const;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   824
#ifndef PRODUCT
489c9b5090e2 Initial load
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parents:
diff changeset
   825
  virtual const char    *Name()   const { return "Method";}
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duke
parents:
diff changeset
   826
489c9b5090e2 Initial load
duke
parents:
diff changeset
   827
  virtual void int_format(PhaseRegAlloc *ra, const MachNode *node, outputStream *st) const;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   828
  virtual void ext_format(PhaseRegAlloc *ra, const MachNode *node, int idx, outputStream *st) const { int_format( ra, node, st ); }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   829
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
   830
};