-// $Id$ -*- C++ -*-
-//***************************************************************************
-// File:
-// InstrScheduling.h
-//
-// Purpose:
-//
-// History:
-// 7/23/01 - Vikram Adve - Created
-//***************************************************************************
+//===-- InstrScheduling.h - Interface To Instruction Scheduling --*- C++ -*-==//
+//
+// This file defines a minimal, but complete, interface to instruction
+// scheduling.
+//
+//===----------------------------------------------------------------------===//
#ifndef LLVM_CODEGEN_INSTR_SCHEDULING_H
#define LLVM_CODEGEN_INSTR_SCHEDULING_H
-#include "llvm/CodeGen/MachineInstr.h"
-
class Method;
-class SchedulingManager;
class TargetMachine;
-class MachineSchedInfo;
//---------------------------------------------------------------------------
// Function: ScheduleInstructionsWithSSA
//---------------------------------------------------------------------------
// Not implemented yet.
-bool ScheduleInstructions (Method* method,
- const TargetMachine &Target);
-
-//---------------------------------------------------------------------------
-// Function: instrIsFeasible
-//
-// Purpose:
-// Used by the priority analysis to filter out instructions
-// that are not feasible to issue in the current cycle.
-// Should only be used during schedule construction..
-//---------------------------------------------------------------------------
+bool ScheduleInstructions(Method *M, const TargetMachine &Target);
-bool instrIsFeasible (const SchedulingManager& S,
- MachineOpCode opCode);
#endif
#include "llvm/Instruction.h"
#include "llvm/CodeGen/MachineInstr.h"
-class Method;
-class InstrForest;
-class MachineInstr;
class InstructionNode;
-class TmpInstruction;
-class Constant;
class TargetMachine;
//
//---------------------------------------------------------------------------
-MachineOperand::MachineOperandType
- ChooseRegOrImmed (Value* val,
+MachineOperand::MachineOperandType ChooseRegOrImmed(
+ Value* val,
MachineOpCode opCode,
const TargetMachine& targetMachine,
bool canUseImmed,
-#include "Support/CommandLine.h"
#ifndef REG_ALLOC_COMMON_H
#define REG_ALLOC_COMMON_H
-// THIS IS NOW SPECIFIED VIA A COMMANDLINE ARGUMENT TO LLC
-//
+#include "Support/CommandLine.h"
+
// set DEBUG_RA for printing out debug messages
// if DEBUG_RA is 1 normal output messages
// if DEBUG_RA is 2 extensive debug info for each instr
#include "llvm/CodeGen/IGNode.h"
#include "llvm/CodeGen/InterferenceGraph.h"
-#include "llvm/Target/TargetMachine.h"
#include "llvm/Target/MachineRegInfo.h"
#include <stack>
#include <iostream>
+class MachineRegClassInfo;
-typedef std::vector<unsigned int> ReservedColorListType;
+typedef std::vector<unsigned> ReservedColorListType;
//-----------------------------------------------------------------------------
// methods are called thru a register class.
//
//-----------------------------------------------------------------------------
-class RegClass
-{
-
- private:
+class RegClass {
const Method *const Meth; // Method we are working on
-
const MachineRegClassInfo *const MRC; // corresponding MRC
-
const unsigned RegClassID; // my int ID
InterferenceGraph IG; // Interference graph - constructed by
#include "llvm/CodeGen/RegAllocCommon.h"
#include "llvm/CodeGen/LiveRange.h"
+class LiveRange;
+class RegClass;
//----------------------------------------------------------------------------
// Class IGNode
// Represents a node in an interference graph.
//----------------------------------------------------------------------------
-class IGNode
-{
+class IGNode {
const int Index; // index within IGNodeList
bool OnStack; // this has been pushed on to stack for coloring
// After that, never incremented/set again nor used.
LiveRange *const ParentLR; // parent LR (cannot be a const)
-
-
- public:
+public:
// constructor
//
inline void setRegClass(RegClass *const RC)
{ ParentLR->setRegClass(RC); }
- inline RegClass *const getRegClass() const
- { return ParentLR->getRegClass(); }
+ inline RegClass *const getRegClass() const {
+ return ParentLR->getRegClass();
+ }
inline bool hasColor() const
{ return ParentLR->hasColor(); }
// of Values.
//----------------------------------------------------------------------------
-class LiveRange : public ValueSet
-{
- private:
-
+class LiveRange : public ValueSet {
RegClass *MyRegClass; // register classs (e.g., int, FP) for this LR
-
bool doesSpanAcrossCalls;
//
// Does this live range span across calls?
}
inline Type::PrimitiveID getTypeID() const {
- return this->getType()->getPrimitiveID();
+ return getType()->getPrimitiveID();
}
inline void setSuggestedColor(int Col) {
if(SuggestedColor == -1 )
SuggestedColor = Col;
+#if 0
else if (DEBUG_RA)
std::cerr << "Already has a suggested color " << Col << "\n";
+#endif
}
inline unsigned getSuggestedColor() const {
inline unsigned getSpillCost() const {
return SpillCost;
}
-
};
-
-
-
-
#endif
-
-/* Title: LiveRangeInfo.h -*- C++ -*-
- Author: Ruchira Sasanka
- Date: Jun 30, 01
- Purpose:
-
- This file contains the class LiveRangeInfo which constructs and keeps
- the LiveRangMap which contains all the live ranges used in a method.
-
- Assumptions:
-
- All variables (llvm Values) are defined before they are used. However, a
- constant may not be defined in the machine instruction stream if it can be
- used as an immediate value within a machine instruction. However, register
- allocation does not have to worry about immediate constants since they
- do not require registers.
-
- Since an llvm Value has a list of uses associated, it is sufficient to
- record only the defs in a Live Range.
-
-*/
-
+//===-- LiveRangeInfo.h - Track all LiveRanges for a Method ------*- C++ -*-==//
+//
+// This file contains the class LiveRangeInfo which constructs and keeps
+// the LiveRangMap which contains all the live ranges used in a method.
+//
+// Assumptions:
+//
+// All variables (llvm Values) are defined before they are used. However, a
+// constant may not be defined in the machine instruction stream if it can be
+// used as an immediate value within a machine instruction. However, register
+// allocation does not have to worry about immediate constants since they
+// do not require registers.
+//
+// Since an llvm Value has a list of uses associated, it is sufficient to
+// record only the defs in a Live Range.
+//
+//===----------------------------------------------------------------------===//
#ifndef LIVE_RANGE_INFO_H
#define LIVE_RANGE_INFO_H
-#include "llvm/Type.h"
-#include "llvm/Method.h"
-#include "llvm/CodeGen/MachineInstr.h"
-
-#include "llvm/Analysis/LiveVar/LiveVarSet.h"
-
-#include "llvm/CodeGen/IGNode.h"
-#include "llvm/CodeGen/LiveRange.h"
-#include "llvm/CodeGen/RegClass.h"
+#include "Support/HashExtras.h"
+class LiveRange;
+class MachineInstr;
+class LiveVarSet;
+class RegClass;
+class MachineRegInfo;
+class TargetMachine;
+class Value;
+class Method;
+class Instruction;
typedef std::hash_map<const Value*, LiveRange*> LiveRangeMapType;
typedef std::vector<const MachineInstr*> CallRetInstrListType;
-
-
//----------------------------------------------------------------------------
// Class LiveRangeInfo
//
// ranges used in a method. Also contain methods to coalesce live ranges.
//----------------------------------------------------------------------------
-class LiveRangeInfo
-{
-
-private:
-
+class LiveRangeInfo {
const Method *const Meth; // Method for which live range info is held
-
LiveRangeMapType LiveRangeMap; // A map from Value * to LiveRange * to
// record all live ranges in a method
// created by constructLiveRanges
// in machine specific code) to the common live range map
//
inline void addLRToMap(const Value *Val, LiveRange *LR) {
- assert( Val && LR && "Val/LR is NULL!\n");
- assert( (! LiveRangeMap[ Val ]) && "LR already set in map");
- LiveRangeMap[ Val ] = LR;
+ assert(Val && LR && "Val/LR is NULL!\n");
+ assert((!LiveRangeMap[Val]) && "LR already set in map");
+ LiveRangeMap[Val] = LR;
}
// return the common live range map for this method
// Method sed to get the corresponding live range of a Value
//
inline LiveRange *getLiveRangeForValue( const Value *const Val)
- { return LiveRangeMap[ Val ]; }
+ { return LiveRangeMap[Val]; }
// Method used to get the Call and Return instruction list
//
// debugging method to print the live ranges
//
void printLiveRanges();
-
};
-
-
-
#endif
PhyRegAlloc PRA(*MethodI, target, &LVI); // allocate regs
PRA.allocateRegisters();
-
-
-
*/
#ifndef PHY_REG_ALLOC_H
#define PHY_REG_ALLOC_H
-#include "llvm/CodeGen/MachineInstr.h"
#include "llvm/CodeGen/RegClass.h"
#include "llvm/CodeGen/LiveRangeInfo.h"
-#include "llvm/Analysis/LiveVar/MethodLiveVarInfo.h"
#include "llvm/Analysis/LoopDepth.h"
#include <deque>
class MachineCodeForMethod;
+class MachineRegInfo;
+class MethodLiveVarInfo;
+class MachineInstr;
//----------------------------------------------------------------------------
// Class AddedInstrns:
-#include "Support/CommandLine.h"
#ifndef REG_ALLOC_COMMON_H
#define REG_ALLOC_COMMON_H
-// THIS IS NOW SPECIFIED VIA A COMMANDLINE ARGUMENT TO LLC
-//
+#include "Support/CommandLine.h"
+
// set DEBUG_RA for printing out debug messages
// if DEBUG_RA is 1 normal output messages
// if DEBUG_RA is 2 extensive debug info for each instr
#include "llvm/CodeGen/IGNode.h"
#include "llvm/CodeGen/InterferenceGraph.h"
-#include "llvm/Target/TargetMachine.h"
#include "llvm/Target/MachineRegInfo.h"
#include <stack>
#include <iostream>
+class MachineRegClassInfo;
-typedef std::vector<unsigned int> ReservedColorListType;
+typedef std::vector<unsigned> ReservedColorListType;
//-----------------------------------------------------------------------------
// methods are called thru a register class.
//
//-----------------------------------------------------------------------------
-class RegClass
-{
-
- private:
+class RegClass {
const Method *const Meth; // Method we are working on
-
const MachineRegClassInfo *const MRC; // corresponding MRC
-
const unsigned RegClassID; // my int ID
InterferenceGraph IG; // Interference graph - constructed by
#include "llvm/CodeGen/RegAllocCommon.h"
#include "llvm/CodeGen/LiveRange.h"
+class LiveRange;
+class RegClass;
//----------------------------------------------------------------------------
// Class IGNode
// Represents a node in an interference graph.
//----------------------------------------------------------------------------
-class IGNode
-{
+class IGNode {
const int Index; // index within IGNodeList
bool OnStack; // this has been pushed on to stack for coloring
// After that, never incremented/set again nor used.
LiveRange *const ParentLR; // parent LR (cannot be a const)
-
-
- public:
+public:
// constructor
//
inline void setRegClass(RegClass *const RC)
{ ParentLR->setRegClass(RC); }
- inline RegClass *const getRegClass() const
- { return ParentLR->getRegClass(); }
+ inline RegClass *const getRegClass() const {
+ return ParentLR->getRegClass();
+ }
inline bool hasColor() const
{ return ParentLR->hasColor(); }
// of Values.
//----------------------------------------------------------------------------
-class LiveRange : public ValueSet
-{
- private:
-
+class LiveRange : public ValueSet {
RegClass *MyRegClass; // register classs (e.g., int, FP) for this LR
-
bool doesSpanAcrossCalls;
//
// Does this live range span across calls?
}
inline Type::PrimitiveID getTypeID() const {
- return this->getType()->getPrimitiveID();
+ return getType()->getPrimitiveID();
}
inline void setSuggestedColor(int Col) {
if(SuggestedColor == -1 )
SuggestedColor = Col;
+#if 0
else if (DEBUG_RA)
std::cerr << "Already has a suggested color " << Col << "\n";
+#endif
}
inline unsigned getSuggestedColor() const {
inline unsigned getSpillCost() const {
return SpillCost;
}
-
};
-
-
-
-
#endif
-
-/* Title: LiveRangeInfo.h -*- C++ -*-
- Author: Ruchira Sasanka
- Date: Jun 30, 01
- Purpose:
-
- This file contains the class LiveRangeInfo which constructs and keeps
- the LiveRangMap which contains all the live ranges used in a method.
-
- Assumptions:
-
- All variables (llvm Values) are defined before they are used. However, a
- constant may not be defined in the machine instruction stream if it can be
- used as an immediate value within a machine instruction. However, register
- allocation does not have to worry about immediate constants since they
- do not require registers.
-
- Since an llvm Value has a list of uses associated, it is sufficient to
- record only the defs in a Live Range.
-
-*/
-
+//===-- LiveRangeInfo.h - Track all LiveRanges for a Method ------*- C++ -*-==//
+//
+// This file contains the class LiveRangeInfo which constructs and keeps
+// the LiveRangMap which contains all the live ranges used in a method.
+//
+// Assumptions:
+//
+// All variables (llvm Values) are defined before they are used. However, a
+// constant may not be defined in the machine instruction stream if it can be
+// used as an immediate value within a machine instruction. However, register
+// allocation does not have to worry about immediate constants since they
+// do not require registers.
+//
+// Since an llvm Value has a list of uses associated, it is sufficient to
+// record only the defs in a Live Range.
+//
+//===----------------------------------------------------------------------===//
#ifndef LIVE_RANGE_INFO_H
#define LIVE_RANGE_INFO_H
-#include "llvm/Type.h"
-#include "llvm/Method.h"
-#include "llvm/CodeGen/MachineInstr.h"
-
-#include "llvm/Analysis/LiveVar/LiveVarSet.h"
-
-#include "llvm/CodeGen/IGNode.h"
-#include "llvm/CodeGen/LiveRange.h"
-#include "llvm/CodeGen/RegClass.h"
+#include "Support/HashExtras.h"
+class LiveRange;
+class MachineInstr;
+class LiveVarSet;
+class RegClass;
+class MachineRegInfo;
+class TargetMachine;
+class Value;
+class Method;
+class Instruction;
typedef std::hash_map<const Value*, LiveRange*> LiveRangeMapType;
typedef std::vector<const MachineInstr*> CallRetInstrListType;
-
-
//----------------------------------------------------------------------------
// Class LiveRangeInfo
//
// ranges used in a method. Also contain methods to coalesce live ranges.
//----------------------------------------------------------------------------
-class LiveRangeInfo
-{
-
-private:
-
+class LiveRangeInfo {
const Method *const Meth; // Method for which live range info is held
-
LiveRangeMapType LiveRangeMap; // A map from Value * to LiveRange * to
// record all live ranges in a method
// created by constructLiveRanges
// in machine specific code) to the common live range map
//
inline void addLRToMap(const Value *Val, LiveRange *LR) {
- assert( Val && LR && "Val/LR is NULL!\n");
- assert( (! LiveRangeMap[ Val ]) && "LR already set in map");
- LiveRangeMap[ Val ] = LR;
+ assert(Val && LR && "Val/LR is NULL!\n");
+ assert((!LiveRangeMap[Val]) && "LR already set in map");
+ LiveRangeMap[Val] = LR;
}
// return the common live range map for this method
// Method sed to get the corresponding live range of a Value
//
inline LiveRange *getLiveRangeForValue( const Value *const Val)
- { return LiveRangeMap[ Val ]; }
+ { return LiveRangeMap[Val]; }
// Method used to get the Call and Return instruction list
//
// debugging method to print the live ranges
//
void printLiveRanges();
-
};
-
-
-
#endif
PhyRegAlloc PRA(*MethodI, target, &LVI); // allocate regs
PRA.allocateRegisters();
-
-
-
*/
#ifndef PHY_REG_ALLOC_H
#define PHY_REG_ALLOC_H
-#include "llvm/CodeGen/MachineInstr.h"
#include "llvm/CodeGen/RegClass.h"
#include "llvm/CodeGen/LiveRangeInfo.h"
-#include "llvm/Analysis/LiveVar/MethodLiveVarInfo.h"
#include "llvm/Analysis/LoopDepth.h"
#include <deque>
class MachineCodeForMethod;
+class MachineRegInfo;
+class MethodLiveVarInfo;
+class MachineInstr;
//----------------------------------------------------------------------------
// Class AddedInstrns:
-#include "Support/CommandLine.h"
#ifndef REG_ALLOC_COMMON_H
#define REG_ALLOC_COMMON_H
-// THIS IS NOW SPECIFIED VIA A COMMANDLINE ARGUMENT TO LLC
-//
+#include "Support/CommandLine.h"
+
// set DEBUG_RA for printing out debug messages
// if DEBUG_RA is 1 normal output messages
// if DEBUG_RA is 2 extensive debug info for each instr
#include "llvm/CodeGen/IGNode.h"
#include "llvm/CodeGen/InterferenceGraph.h"
-#include "llvm/Target/TargetMachine.h"
#include "llvm/Target/MachineRegInfo.h"
#include <stack>
#include <iostream>
+class MachineRegClassInfo;
-typedef std::vector<unsigned int> ReservedColorListType;
+typedef std::vector<unsigned> ReservedColorListType;
//-----------------------------------------------------------------------------
// methods are called thru a register class.
//
//-----------------------------------------------------------------------------
-class RegClass
-{
-
- private:
+class RegClass {
const Method *const Meth; // Method we are working on
-
const MachineRegClassInfo *const MRC; // corresponding MRC
-
const unsigned RegClassID; // my int ID
InterferenceGraph IG; // Interference graph - constructed by
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