// singleton register classes.
std::set<std::string> SingletonRegisterNames;
- std::vector<const CodeGenInstruction*> InstrList;
- Target.getInstructionsByEnumValue(InstrList);
+ const std::vector<const CodeGenInstruction*> &InstrList =
+ Target.getInstructionsByEnumValue();
for (unsigned i = 0, e = InstrList.size(); i != e; ++i) {
const CodeGenInstruction &CGI = *InstrList[i];
AsmWriter->getValueAsInt("OperandSpacing")));
// Get the instruction numbering.
- Target.getInstructionsByEnumValue(NumberedInstructions);
+ NumberedInstructions = Target.getInstructionsByEnumValue();
// Compute the CodeGenInstruction -> AsmWriterInst mapping. Note that not
// all machine instructions are necessarily being printed, so there may be
Record *AsmWriter = Target.getAsmWriter();
std::string ClassName = AsmWriter->getValueAsString("AsmWriterClassName");
- std::vector<const CodeGenInstruction*> NumberedInstructions;
- Target.getInstructionsByEnumValue(NumberedInstructions);
+ const std::vector<const CodeGenInstruction*> &NumberedInstructions =
+ Target.getInstructionsByEnumValue();
StringToOffsetTable StringTable;
O <<
EmitSourceFileHeader("Machine Code Emitter", o);
std::string Namespace = Insts[0]->getValueAsString("Namespace") + "::";
- std::vector<const CodeGenInstruction*> NumberedInstructions;
- Target.getInstructionsByEnumValue(NumberedInstructions);
+ const std::vector<const CodeGenInstruction*> &NumberedInstructions =
+ Target.getInstructionsByEnumValue();
// Emit function declaration
o << "unsigned " << Target.getName() << "CodeEmitter::"
// Emit instruction base values
o << " static const unsigned InstBits[] = {\n";
- for (std::vector<const CodeGenInstruction*>::iterator
+ for (std::vector<const CodeGenInstruction*>::const_iterator
IN = NumberedInstructions.begin(),
EN = NumberedInstructions.end();
IN != EN; ++IN) {
void CodeGenDAGPatterns::InferInstructionFlags() {
- std::vector<const CodeGenInstruction*> Instructions;
- Target.getInstructionsByEnumValue(Instructions);
+ const std::vector<const CodeGenInstruction*> &Instructions =
+ Target.getInstructionsByEnumValue();
for (unsigned i = 0, e = Instructions.size(); i != e; ++i) {
CodeGenInstruction &InstInfo =
const_cast<CodeGenInstruction &>(*Instructions[i]);
/// getInstructionsByEnumValue - Return all of the instructions defined by the
/// target, ordered by their enum value.
-void CodeGenTarget::
-getInstructionsByEnumValue(std::vector<const CodeGenInstruction*>
- &NumberedInstructions) {
+void CodeGenTarget::ComputeInstrsByEnum() {
const std::map<std::string, CodeGenInstruction> &Insts = getInstructions();
-
const CodeGenInstruction *PHI = GetInstByName("PHI", Insts);
const CodeGenInstruction *INLINEASM = GetInstByName("INLINEASM", Insts);
const CodeGenInstruction *DBG_LABEL = GetInstByName("DBG_LABEL", Insts);
const CodeGenInstruction *DBG_VALUE = GetInstByName("DBG_VALUE", Insts);
// Print out the rest of the instructions now.
- NumberedInstructions.push_back(PHI);
- NumberedInstructions.push_back(INLINEASM);
- NumberedInstructions.push_back(DBG_LABEL);
- NumberedInstructions.push_back(EH_LABEL);
- NumberedInstructions.push_back(GC_LABEL);
- NumberedInstructions.push_back(KILL);
- NumberedInstructions.push_back(EXTRACT_SUBREG);
- NumberedInstructions.push_back(INSERT_SUBREG);
- NumberedInstructions.push_back(IMPLICIT_DEF);
- NumberedInstructions.push_back(SUBREG_TO_REG);
- NumberedInstructions.push_back(COPY_TO_REGCLASS);
- NumberedInstructions.push_back(DBG_VALUE);
+ InstrsByEnum.push_back(PHI);
+ InstrsByEnum.push_back(INLINEASM);
+ InstrsByEnum.push_back(DBG_LABEL);
+ InstrsByEnum.push_back(EH_LABEL);
+ InstrsByEnum.push_back(GC_LABEL);
+ InstrsByEnum.push_back(KILL);
+ InstrsByEnum.push_back(EXTRACT_SUBREG);
+ InstrsByEnum.push_back(INSERT_SUBREG);
+ InstrsByEnum.push_back(IMPLICIT_DEF);
+ InstrsByEnum.push_back(SUBREG_TO_REG);
+ InstrsByEnum.push_back(COPY_TO_REGCLASS);
+ InstrsByEnum.push_back(DBG_VALUE);
for (inst_iterator II = inst_begin(), E = inst_end(); II != E; ++II)
if (&II->second != PHI &&
&II->second != INLINEASM &&
&II->second != SUBREG_TO_REG &&
&II->second != COPY_TO_REGCLASS &&
&II->second != DBG_VALUE)
- NumberedInstructions.push_back(&II->second);
+ InstrsByEnum.push_back(&II->second);
}
void ReadRegisterClasses() const;
void ReadInstructions() const;
void ReadLegalValueTypes() const;
+
+ std::vector<const CodeGenInstruction*> InstrsByEnum;
public:
CodeGenTarget();
/// getInstructionsByEnumValue - Return all of the instructions defined by the
/// target, ordered by their enum value.
- void getInstructionsByEnumValue(std::vector<const CodeGenInstruction*>
- &NumberedInstructions);
+ const std::vector<const CodeGenInstruction*> &getInstructionsByEnumValue() {
+ if (InstrsByEnum.empty()) ComputeInstrsByEnum();
+ return InstrsByEnum;
+ }
/// isLittleEndianEncoding - are instruction bit patterns defined as [0..n]?
///
bool isLittleEndianEncoding() const;
+
+private:
+ void ComputeInstrsByEnum();
};
/// ComplexPattern - ComplexPattern info, corresponding to the ComplexPattern
if (Target.getName() == "X86") {
DisassemblerTables Tables;
- std::vector<const CodeGenInstruction*> numberedInstructions;
- Target.getInstructionsByEnumValue(numberedInstructions);
+ const std::vector<const CodeGenInstruction*> &numberedInstructions =
+ Target.getInstructionsByEnumValue();
for (unsigned i = 0, e = numberedInstructions.size(); i != e; ++i)
RecognizableInstr::processInstr(Tables, *numberedInstructions[i], i);
/// @arg target - The CodeGenTarget to use as a source of instructions
static void populateInstInfo(CompoundConstantEmitter &infoArray,
CodeGenTarget &target) {
- std::vector<const CodeGenInstruction*> numberedInstructions;
- target.getInstructionsByEnumValue(numberedInstructions);
+ const std::vector<const CodeGenInstruction*> &numberedInstructions =
+ target.getInstructionsByEnumValue();
unsigned int index;
unsigned int numInstructions = numberedInstructions.size();
exit(1);
}
- std::vector<const CodeGenInstruction*> NumberedInstructions;
- Target.getInstructionsByEnumValue(NumberedInstructions);
+ const std::vector<const CodeGenInstruction*> &NumberedInstructions =
+ Target.getInstructionsByEnumValue();
OS << "namespace " << Namespace << " {\n";
OS << " enum {\n";
//
OS << "\nstatic const TargetInstrDesc " << TargetName
<< "Insts[] = {\n";
- std::vector<const CodeGenInstruction*> NumberedInstructions;
- Target.getInstructionsByEnumValue(NumberedInstructions);
+ const std::vector<const CodeGenInstruction*> &NumberedInstructions =
+ Target.getInstructionsByEnumValue();
for (unsigned i = 0, e = NumberedInstructions.size(); i != e; ++i)
emitRecord(*NumberedInstructions[i], i, InstrInfo, EmittedLists,