public class New2InitFlowAnalysis extends BackwardFlowAnalysis<Unit,FlowSet>
FlowAnalysis.FlowfilterUnitToAfterFlow, unitToAfterFlowfilterUnitToBeforeFlow, graph, unitToBeforeFlow| Constructor and Description |
|---|
New2InitFlowAnalysis(DirectedGraph<Unit> graph) |
| Modifier and Type | Method and Description |
|---|---|
protected void |
copy(FlowSet source,
FlowSet dest)
Creates a copy of the
source flow object in dest. |
protected FlowSet |
entryInitialFlow()
Returns the initial flow value for entry/exit graph nodes.
|
protected void |
flowThrough(FlowSet in,
Unit d,
FlowSet out)
Given the merge of the
out sets, compute the in
set for s (or in to out, depending on direction). |
protected void |
merge(FlowSet in1,
FlowSet in2,
FlowSet out)
Compute the merge of the
in1 and in2 sets, putting the result into out. |
protected FlowSet |
newInitialFlow()
Returns the flow object corresponding to the initial values for
each graph node.
|
doAnalysis, isForwardgetFlow, getFlowAfter, getFlowBefore, omissiblemerge, mergeInto, treatTrapHandlersAsEntriespublic New2InitFlowAnalysis(DirectedGraph<Unit> graph)
protected void flowThrough(FlowSet in, Unit d, FlowSet out)
FlowAnalysisout sets, compute the in
set for s (or in to out, depending on direction).
This function often causes confusion, because the same interface is used
for both forward and backward flow analyses. The first parameter is
always the argument to the flow function (i.e. it is the "in" set in a
forward analysis and the "out" set in a backward analysis), and the third
parameter is always the result of the flow function (i.e. it is the "out"
set in a forward analysis and the "in" set in a backward analysis).flowThrough in class FlowAnalysis<Unit,FlowSet>in - the input flowd - the current nodeout - the returned flowprotected FlowSet newInitialFlow()
AbstractFlowAnalysisnewInitialFlow in class AbstractFlowAnalysis<Unit,FlowSet>protected FlowSet entryInitialFlow()
AbstractFlowAnalysisAbstractFlowAnalysis.newInitialFlow()entryInitialFlow in class AbstractFlowAnalysis<Unit,FlowSet>protected void merge(FlowSet in1, FlowSet in2, FlowSet out)
AbstractFlowAnalysisin1 and in2 sets, putting the result into out.
The behavior of this function depends on the implementation ( it may be necessary to check whether
in1 and in2 are equal or aliased ).
Used by the doAnalysis method.merge in class AbstractFlowAnalysis<Unit,FlowSet>protected void copy(FlowSet source, FlowSet dest)
AbstractFlowAnalysissource flow object in dest.copy in class AbstractFlowAnalysis<Unit,FlowSet>