coins.opt
Class Inline

java.lang.Object
  coins.opt.Inline

public class Inline

extends java.lang.Object

Inline class does inline expansion of small subprograms.

Field Summary

protected int	fDbgLevel
protected FlowImpl	fFlowImpl
protected int	fLimitOfExpansionDepth
protected java.util.Map	fOptionMap
protected CoinsOptions	fOptions
protected java.util.List	fPragmaInlineList
protected int	fUpperLimitOfNodeCount
protected boolean	fWithHirOpt
protected HirRoot	hirRoot
protected IoRoot	io
protected java.util.Vector	SubpBlackList
protected SymRoot	symRoot
protected int	VALUESUM

Constructor Summary

Inline(HirRoot pHirRoot, SymRoot pSymRoot, IoRoot pIoRoot, java.lang.String pOptionValue, java.util.List pPragmaInlineList, boolean pWithHirOpt, java.lang.String pInlineDepth)

Method Summary

boolean	changeSubp(SubpDefinition pSubpDef)
protected boolean	checkCallerSubp_B(SubpDefinition lSubpDef, HirRoot hirRoot, SymRoot symRoot, IoRoot io)
(package private) Var	getTempForStaticVar(Var pStaticVar, Subp pSubp) getTempForStaticVar get the temporal variable corresponding to the static variable lStaticVar.
protected boolean	inlineCond(HIR pxNode) inlineCond decides whether the subprogram called at pxNode should be expanded or not.
protected void	inlineExpansion(HIR pCallNode) Expand subprogram called at pCallNode
protected boolean	isLastStmtOfSubp(Stmt pStmt)
protected void	replaceLocalStaticVariables(SubpDefinition pSubpDef) replaceLocalStaticVariables replaces static variables declared locally in pSubpDef by temporal variable so that local static variables are trreated properly in both cases where the subprogram is expanded and not expanded.
protected void	replaceLocalStaticVariablesInSubtree(HIR pHir, Subp pSubp)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

hirRoot

protected final HirRoot hirRoot

symRoot

protected final SymRoot symRoot

io

protected final IoRoot io

fDbgLevel

protected final int fDbgLevel

fLimitOfExpansionDepth

protected int fLimitOfExpansionDepth

fUpperLimitOfNodeCount

protected int fUpperLimitOfNodeCount

VALUESUM

protected int VALUESUM

fFlowImpl

protected final FlowImpl fFlowImpl

fOptionMap

protected java.util.Map fOptionMap

fOptions

protected CoinsOptions fOptions

SubpBlackList

protected java.util.Vector SubpBlackList

fPragmaInlineList

protected java.util.List fPragmaInlineList

fWithHirOpt

protected boolean fWithHirOpt

Constructor Detail

Inline

public Inline(HirRoot pHirRoot,
              SymRoot pSymRoot,
              IoRoot pIoRoot,
              java.lang.String pOptionValue,
              java.util.List pPragmaInlineList,
              boolean pWithHirOpt,
              java.lang.String pInlineDepth)

Method Detail

changeSubp

public boolean changeSubp(SubpDefinition pSubpDef)

checkCallerSubp_B

protected boolean checkCallerSubp_B(SubpDefinition lSubpDef,
                                    HirRoot hirRoot,
                                    SymRoot symRoot,
                                    IoRoot io)

inlineCond

protected boolean inlineCond(HIR pxNode)

inlineCond decides whether the subprogram called at pxNode should be expanded or not. false number of nodes > fUpperLimitOfNodeCount || external subprogram (subprogram body is not given) || contained in conditional expression (in IfStmt, LoopStmt)//##65 boolean expression //##65 contained in switch selection expression //##65 contained in HirList or IrList //##77 //64 not contained in loop body true number of nodes <= fUpperLimitOfNodeCount //##64 (called in loop body) and

Parameters:

pxNode - node calling a subprogram.

Returns:

true if inline expansion is to be done.

inlineExpansion

protected void inlineExpansion(HIR pCallNode)

Expand subprogram called at pCallNode

Parameters:

pCallNode - call node

getTempForStaticVar

Var getTempForStaticVar(Var pStaticVar,
                        Subp pSubp)

getTempForStaticVar get the temporal variable corresponding to the static variable lStaticVar. For a local static variable declared in a subprogram, a global static temporal variable is generated and registered to a map showing the correspondence with the static variable. If the correspondence is already registered, then the registered temporal variable is returned. If the map is not yet prepared, then create the map. The map for a subprogram is created only once for the entire compile unit. When the map is created, fSubpWithStaticVar is set to pSubp in order to invoke renaming of local static variables in the body of pSubp.

Parameters:

pSubp - subprogram to be expanded inline.

Returns:

the temporal variable corresponding to the static variable lStaticVar.

replaceLocalStaticVariables

protected void replaceLocalStaticVariables(SubpDefinition pSubpDef)

replaceLocalStaticVariables replaces static variables declared locally in pSubpDef by temporal variable so that local static variables are trreated properly in both cases where the subprogram is expanded and not expanded. Local static variables are replaced by temporal variable declared as static global and not visible from other compile unit.

Parameters:

pSubpDef - definition of subprogram to be inline expanded.

replaceLocalStaticVariablesInSubtree

protected void replaceLocalStaticVariablesInSubtree(HIR pHir,
                                                    Subp pSubp)

isLastStmtOfSubp

protected boolean isLastStmtOfSubp(Stmt pStmt)