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Start parsing more information from the Operand information

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15644 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2004-08-11 02:22:39 +00:00
parent 552a8428fa
commit cf03da0ce9
2 changed files with 35 additions and 8 deletions
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30
utils/TableGen/CodeGenInstruction.h
View File

@ -31,15 +31,35 @@ namespace llvm {
/// instruction.
std::string AsmString;
/// OperandInfo - For each operand declared in the OperandList of the
/// instruction, keep track of its record (which specifies the class of the
/// operand), its type, and the name given to the operand, if any.
/// OperandInfo - The information we keep track of for each operand in the
/// operand list for a tablegen instruction.
struct OperandInfo {
/// Rec - The definition this operand is declared as.
Record *Rec;
/// Ty - The MachineValueType of the operand.
///
MVT::ValueType Ty;
/// Name - If this operand was assigned a symbolic name, this is it,
/// otherwise, it's empty.
std::string Name;
OperandInfo(Record *R, MVT::ValueType T, const std::string &N)
: Rec(R), Ty(T), Name(N) {}
/// PrinterMethodName - The method used to print operands of this type in
/// the asmprinter.
std::string PrinterMethodName;
/// MIOperandNo - Currently (this is meant to be phased out), some logical
/// operands correspond to multiple MachineInstr operands. In the X86
/// target for example, one address operand is represented as 4
/// MachineOperands. Because of this, the operand number in the
/// OperandList may not match the MachineInstr operand num. Until it
/// does, this contains the MI operand index of this operand.
unsigned MIOperandNo;
OperandInfo(Record *R, MVT::ValueType T, const std::string &N,
const std::string &PMN, unsigned MION)
: Rec(R), Ty(T), Name(N), PrinterMethodName(PMN), MIOperandNo(MION) {}
};
/// OperandList - The list of declared operands, along with their declared

13
utils/TableGen/CodeGenTarget.cpp
View File

@ -132,19 +132,26 @@ CodeGenInstruction::CodeGenInstruction(Record *R) : TheDef(R) {
try {
DagInit *DI = R->getValueAsDag("OperandList");
unsigned MIOperandNo = 0;
for (unsigned i = 0, e = DI->getNumArgs(); i != e; ++i)
if (DefInit *Arg = dynamic_cast<DefInit*>(DI->getArg(i))) {
Record *Rec = Arg->getDef();
MVT::ValueType Ty;
std::string PrintMethod = "printOperand";
unsigned NumOps = 1;
if (Rec->isSubClassOf("RegisterClass"))
Ty = getValueType(Rec->getValueAsDef("RegType"));
else if (Rec->isSubClassOf("Operand"))
else if (Rec->isSubClassOf("Operand")) {
Ty = getValueType(Rec->getValueAsDef("Type"));
else
PrintMethod = Rec->getValueAsString("PrintMethod");
NumOps = Rec->getValueAsInt("NumMIOperands");
} else
throw "Unknown operand class '" + Rec->getName() +
"' in instruction '" + R->getName() + "' instruction!";
OperandList.push_back(OperandInfo(Rec, Ty, DI->getArgName(i)));
OperandList.push_back(OperandInfo(Rec, Ty, DI->getArgName(i),
PrintMethod, MIOperandNo));
MIOperandNo += NumOps;
} else {
throw "Illegal operand for the '" + R->getName() + "' instruction!";
}