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Added \!con(a,b) syntax to concatnate two dag fragments.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37063 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evan Cheng
2007-05-15 01:23:24 +00:00
parent 5de723c118
commit 30d15757e3
7 changed files with 224 additions and 177 deletions
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utils/TableGen/Record.cpp
+35
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@@ -184,6 +184,18 @@ Init *DagRecTy::convertValue(TypedInit *TI) {
return 0;
}
Init *DagRecTy::convertValue(BinOpInit *BO) {
if (BO->getOpcode() == BinOpInit::CONCAT) {
Init *L = BO->getLHS()->convertInitializerTo(this);
Init *R = BO->getRHS()->convertInitializerTo(this);
if (L == 0 || R == 0) return 0;
if (L != BO->getLHS() || R != BO->getRHS())
return new BinOpInit(BinOpInit::CONCAT, L, R);
return BO;
}
return 0;
}
void RecordRecTy::print(std::ostream &OS) const {
OS << Rec->getName();
@@ -378,6 +390,28 @@ void ListInit::print(std::ostream &OS) const {
Init *BinOpInit::Fold() {
switch (getOpcode()) {
default: assert(0 && "Unknown binop");
case CONCAT: {
DagInit *LHSs = dynamic_cast<DagInit*>(LHS);
DagInit *RHSs = dynamic_cast<DagInit*>(RHS);
if (LHSs && RHSs) {
DefInit *LOp = dynamic_cast<DefInit*>(LHSs->getOperator());
DefInit *ROp = dynamic_cast<DefInit*>(RHSs->getOperator());
if (LOp->getDef() != ROp->getDef())
throw "Concated Dag operators do not match!";
std::vector<Init*> Args;
std::vector<std::string> ArgNames;
for (unsigned i = 0, e = LHSs->getNumArgs(); i != e; ++i) {
Args.push_back(LHSs->getArg(i));
ArgNames.push_back(LHSs->getArgName(i));
}
for (unsigned i = 0, e = RHSs->getNumArgs(); i != e; ++i) {
Args.push_back(RHSs->getArg(i));
ArgNames.push_back(RHSs->getArgName(i));
}
return new DagInit(LHSs->getOperator(), Args, ArgNames);
}
break;
}
case STRCONCAT: {
StringInit *LHSs = dynamic_cast<StringInit*>(LHS);
StringInit *RHSs = dynamic_cast<StringInit*>(RHS);
@@ -418,6 +452,7 @@ Init *BinOpInit::resolveReferences(Record &R, const RecordVal *RV) {
void BinOpInit::print(std::ostream &OS) const {
switch (Opc) {
case CONCAT: OS << "!con"; break;
case SHL: OS << "!shl"; break;
case SRA: OS << "!sra"; break;
case SRL: OS << "!srl"; break;