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eliminate a bunch of code duplication in ParseTreePattern

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by rotating it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99746 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2010-03-28 06:50:34 +00:00
parent e7700999b8
commit c217305f76
2 changed files with 68 additions and 100 deletions
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164
utils/TableGen/CodeGenDAGPatterns.cpp
View File

@ -1421,13 +1421,13 @@ TreePattern::TreePattern(Record *TheRec, ListInit *RawPat, bool isInput,
CodeGenDAGPatterns &cdp) : TheRecord(TheRec), CDP(cdp){
isInputPattern = isInput;
for (unsigned i = 0, e = RawPat->getSize(); i != e; ++i)
Trees.push_back(ParseTreePattern((DagInit*)RawPat->getElement(i)));
Trees.push_back(ParseTreePattern(RawPat->getElement(i), ""));
}
TreePattern::TreePattern(Record *TheRec, DagInit *Pat, bool isInput,
CodeGenDAGPatterns &cdp) : TheRecord(TheRec), CDP(cdp){
isInputPattern = isInput;
Trees.push_back(ParseTreePattern(Pat));
Trees.push_back(ParseTreePattern(Pat, ""));
}
TreePattern::TreePattern(Record *TheRec, TreePatternNode *Pat, bool isInput,
@ -1455,7 +1455,53 @@ void TreePattern::ComputeNamedNodes(TreePatternNode *N) {
}
TreePatternNode *TreePattern::ParseTreePattern(DagInit *Dag) {
TreePatternNode *TreePattern::ParseTreePattern(Init *TheInit, StringRef OpName){
if (DefInit *DI = dynamic_cast<DefInit*>(TheInit)) {
Record *R = DI->getDef();
// Direct reference to a leaf DagNode or PatFrag? Turn it into a
// TreePatternNode if its own. For example:
/// (foo GPR, imm) -> (foo GPR, (imm))
if (R->isSubClassOf("SDNode") || R->isSubClassOf("PatFrag"))
return ParseTreePattern(new DagInit(DI, "",
std::vector<std::pair<Init*, std::string> >()),
OpName);
// Input argument?
TreePatternNode *Res = new TreePatternNode(DI, 1);
if (R->getName() == "node") {
if (OpName.empty())
error("'node' argument requires a name to match with operand list");
Args.push_back(OpName);
}
Res->setName(OpName);
return Res;
}
if (IntInit *II = dynamic_cast<IntInit*>(TheInit)) {
if (!OpName.empty())
error("Constant int argument should not have a name!");
return new TreePatternNode(II, 1);
}
if (BitsInit *BI = dynamic_cast<BitsInit*>(TheInit)) {
// Turn this into an IntInit.
Init *II = BI->convertInitializerTo(new IntRecTy());
if (II == 0 || !dynamic_cast<IntInit*>(II))
error("Bits value must be constants!");
if (!OpName.empty())
error("Constant int argument should not have a name!");
return new TreePatternNode(dynamic_cast<IntInit*>(II), 1);
}
DagInit *Dag = dynamic_cast<DagInit*>(TheInit);
if (!Dag) {
TheInit->dump();
error("Pattern has unexpected init kind!");
}
DefInit *OpDef = dynamic_cast<DefInit*>(Dag->getOperator());
if (!OpDef) error("Pattern has unexpected operator type!");
Record *Operator = OpDef->getDef();
@ -1466,50 +1512,14 @@ TreePatternNode *TreePattern::ParseTreePattern(DagInit *Dag) {
if (Dag->getNumArgs() != 1)
error("Type cast only takes one operand!");
Init *Arg = Dag->getArg(0);
TreePatternNode *New;
if (DefInit *DI = dynamic_cast<DefInit*>(Arg)) {
Record *R = DI->getDef();
if (R->isSubClassOf("SDNode") || R->isSubClassOf("PatFrag")) {
Dag->setArg(0, new DagInit(DI, "",
std::vector<std::pair<Init*, std::string> >()));
return ParseTreePattern(Dag);
}
// Input argument?
if (R->getName() == "node") {
if (Dag->getArgName(0).empty())
error("'node' argument requires a name to match with operand list");
Args.push_back(Dag->getArgName(0));
}
New = new TreePatternNode(DI, 1);
} else if (DagInit *DI = dynamic_cast<DagInit*>(Arg)) {
New = ParseTreePattern(DI);
} else if (IntInit *II = dynamic_cast<IntInit*>(Arg)) {
New = new TreePatternNode(II, 1);
if (!Dag->getArgName(0).empty())
error("Constant int argument should not have a name!");
} else if (BitsInit *BI = dynamic_cast<BitsInit*>(Arg)) {
// Turn this into an IntInit.
Init *II = BI->convertInitializerTo(new IntRecTy());
if (II == 0 || !dynamic_cast<IntInit*>(II))
error("Bits value must be constants!");
New = new TreePatternNode(dynamic_cast<IntInit*>(II), 1);
if (!Dag->getArgName(0).empty())
error("Constant int argument should not have a name!");
} else {
Arg->dump();
error("Unknown leaf value for tree pattern!");
return 0;
}
TreePatternNode *New = ParseTreePattern(Dag->getArg(0), Dag->getArgName(0));
// Apply the type cast.
assert(New->getNumTypes() == 1 && "FIXME: Unhandled");
New->UpdateNodeType(0, getValueType(Operator), *this);
if (New->getNumChildren() == 0)
New->setName(Dag->getArgName(0));
if (!OpName.empty())
error("ValueType cast should not have a name!");
return New;
}
@ -1529,55 +1539,10 @@ TreePatternNode *TreePattern::ParseTreePattern(DagInit *Dag) {
error("Cannot use '" + Operator->getName() + "' in an input pattern!");
std::vector<TreePatternNode*> Children;
for (unsigned i = 0, e = Dag->getNumArgs(); i != e; ++i) {
Init *Arg = Dag->getArg(i);
if (DagInit *DI = dynamic_cast<DagInit*>(Arg)) {
Children.push_back(ParseTreePattern(DI));
if (Children.back()->getName().empty())
Children.back()->setName(Dag->getArgName(i));
} else if (DefInit *DefI = dynamic_cast<DefInit*>(Arg)) {
Record *R = DefI->getDef();
// Direct reference to a leaf DagNode or PatFrag? Turn it into a
// TreePatternNode if its own.
if (R->isSubClassOf("SDNode") || R->isSubClassOf("PatFrag")) {
Dag->setArg(i, new DagInit(DefI, "",
std::vector<std::pair<Init*, std::string> >()));
--i; // Revisit this node...
} else {
TreePatternNode *Node = new TreePatternNode(DefI, 1);
Node->setName(Dag->getArgName(i));
Children.push_back(Node);
// Input argument?
if (R->getName() == "node") {
if (Dag->getArgName(i).empty())
error("'node' argument requires a name to match with operand list");
Args.push_back(Dag->getArgName(i));
}
}
} else if (IntInit *II = dynamic_cast<IntInit*>(Arg)) {
TreePatternNode *Node = new TreePatternNode(II, 1);
if (!Dag->getArgName(i).empty())
error("Constant int argument should not have a name!");
Children.push_back(Node);
} else if (BitsInit *BI = dynamic_cast<BitsInit*>(Arg)) {
// Turn this into an IntInit.
Init *II = BI->convertInitializerTo(new IntRecTy());
if (II == 0 || !dynamic_cast<IntInit*>(II))
error("Bits value must be constants!");
TreePatternNode *Node = new TreePatternNode(dynamic_cast<IntInit*>(II),1);
if (!Dag->getArgName(i).empty())
error("Constant int argument should not have a name!");
Children.push_back(Node);
} else {
errs() << '"';
Arg->dump();
errs() << "\": ";
error("Unknown leaf value for tree pattern!");
}
}
// Parse all the operands.
for (unsigned i = 0, e = Dag->getNumArgs(); i != e; ++i)
Children.push_back(ParseTreePattern(Dag->getArg(i), Dag->getArgName(i)));
// If the operator is an intrinsic, then this is just syntactic sugar for for
// (intrinsic_* <number>, ..children..). Pick the right intrinsic node, and
@ -1588,15 +1553,13 @@ TreePatternNode *TreePattern::ParseTreePattern(DagInit *Dag) {
// If this intrinsic returns void, it must have side-effects and thus a
// chain.
if (Int.IS.RetVTs.empty()) {
if (Int.IS.RetVTs.empty())
Operator = getDAGPatterns().get_intrinsic_void_sdnode();
} else if (Int.ModRef != CodeGenIntrinsic::NoMem) {
else if (Int.ModRef != CodeGenIntrinsic::NoMem)
// Has side-effects, requires chain.
Operator = getDAGPatterns().get_intrinsic_w_chain_sdnode();
} else {
// Otherwise, no chain.
else // Otherwise, no chain.
Operator = getDAGPatterns().get_intrinsic_wo_chain_sdnode();
}
TreePatternNode *IIDNode = new TreePatternNode(new IntInit(IID), 1);
Children.insert(Children.begin(), IIDNode);
@ -1604,7 +1567,12 @@ TreePatternNode *TreePattern::ParseTreePattern(DagInit *Dag) {
unsigned NumResults = GetNumNodeResults(Operator, CDP);
TreePatternNode *Result = new TreePatternNode(Operator, Children, NumResults);
Result->setName(Dag->getName());
Result->setName(OpName);
if (!Dag->getName().empty()) {
assert(Result->getName().empty());
Result->setName(Dag->getName());
}
return Result;
}

4
utils/TableGen/CodeGenDAGPatterns.h
View File

@ -272,7 +272,7 @@ public:
~TreePatternNode();
const std::string &getName() const { return Name; }
void setName(const std::string &N) { Name = N; }
void setName(StringRef N) { Name.assign(N.begin(), N.end()); }
bool isLeaf() const { return Val != 0; }
@ -510,7 +510,7 @@ public:
void dump() const;
private:
TreePatternNode *ParseTreePattern(DagInit *DI);
TreePatternNode *ParseTreePattern(Init *DI, StringRef OpName);
void ComputeNamedNodes();
void ComputeNamedNodes(TreePatternNode *N);
};