private void processOutputs(Operation operation) {
// Update table and outputs
List<Operand> outputs = operation.getOutputs();
for (int j = 0; j < outputs.size(); j++) {
Operand output = outputs.get(j);
if (output.getType() != OperandType.internalData) {
if (!output.isImmutable()) {
Logger.getLogger(SingleStaticAssignment.class.getName())
.warning(
"Mutable output of type '" + output.getType() + "' bypassed SSA transformation.");
}
continue;
}
InternalData iData = (InternalData) output;
String registerName = iData.getName();
// Update version
Integer version = versionTable.get(registerName);
if (version == null) {
version = 0;
}
version++;
versionTable.put(registerName, version);
// New name
String ssaName = Ssa.buildSsaName(registerName, version);
// New InternalData
InternalData newData = new InternalData(ssaName, iData.getBits());
// Substitute
outputs.set(j, newData);
}
}
private void processInputs(Operation operation) {
List<Operand> inputs = operation.getInputs();
for (int j = 0; j < inputs.size(); j++) {
Operand input = inputs.get(j);
// SSA is only over internal data. Check if a mutable kind of
// data as went undetected
if (input.getType() != OperandType.internalData) {
if (!input.isImmutable()) {
Logger.getLogger(SingleStaticAssignment.class.getName())
.warning(
"Mutable input of type '" + input.getType() + "' bypassed SSA transformation.");
}
continue;
}
InternalData iData = (InternalData) input;
// Get version
Integer version = versionTable.get(iData.getName());
if (version == null) {
version = 0;
versionTable.put(iData.getName(), version);
}
// Get SSA name
String ssaName = Ssa.buildSsaName(iData.getName(), version);
// New InternalData
InternalData newData = new InternalData(ssaName, iData.getBits());
newData.setPrefix(iData.getPrefix());
// Substitute
inputs.set(j, newData);
}
}