//===----------------------------------------------------------------------===//
#include "SetTheory.h"
-#include "Error.h"
-#include "Record.h"
#include "llvm/Support/Format.h"
+#include "llvm/TableGen/Error.h"
+#include "llvm/TableGen/Record.h"
using namespace llvm;
// (add a, b, ...) Evaluate and union all arguments.
struct AddOp : public SetTheory::Operator {
- void apply(SetTheory &ST, DagInit *Expr, RecSet &Elts) {
- ST.evaluate(Expr->arg_begin(), Expr->arg_end(), Elts);
+ virtual void apply(SetTheory &ST, DagInit *Expr, RecSet &Elts,
+ ArrayRef<SMLoc> Loc) {
+ ST.evaluate(Expr->arg_begin(), Expr->arg_end(), Elts, Loc);
}
};
// (sub Add, Sub, ...) Set difference.
struct SubOp : public SetTheory::Operator {
- void apply(SetTheory &ST, DagInit *Expr, RecSet &Elts) {
+ virtual void apply(SetTheory &ST, DagInit *Expr, RecSet &Elts,
+ ArrayRef<SMLoc> Loc) {
if (Expr->arg_size() < 2)
- throw "Set difference needs at least two arguments: " +
- Expr->getAsString();
+ PrintFatalError(Loc, "Set difference needs at least two arguments: " +
+ Expr->getAsString());
RecSet Add, Sub;
- ST.evaluate(*Expr->arg_begin(), Add);
- ST.evaluate(Expr->arg_begin() + 1, Expr->arg_end(), Sub);
+ ST.evaluate(*Expr->arg_begin(), Add, Loc);
+ ST.evaluate(Expr->arg_begin() + 1, Expr->arg_end(), Sub, Loc);
for (RecSet::iterator I = Add.begin(), E = Add.end(); I != E; ++I)
if (!Sub.count(*I))
Elts.insert(*I);
// (and S1, S2) Set intersection.
struct AndOp : public SetTheory::Operator {
- void apply(SetTheory &ST, DagInit *Expr, RecSet &Elts) {
+ virtual void apply(SetTheory &ST, DagInit *Expr, RecSet &Elts,
+ ArrayRef<SMLoc> Loc) {
if (Expr->arg_size() != 2)
- throw "Set intersection requires two arguments: " + Expr->getAsString();
+ PrintFatalError(Loc, "Set intersection requires two arguments: " +
+ Expr->getAsString());
RecSet S1, S2;
- ST.evaluate(Expr->arg_begin()[0], S1);
- ST.evaluate(Expr->arg_begin()[1], S2);
+ ST.evaluate(Expr->arg_begin()[0], S1, Loc);
+ ST.evaluate(Expr->arg_begin()[1], S2, Loc);
for (RecSet::iterator I = S1.begin(), E = S1.end(); I != E; ++I)
if (S2.count(*I))
Elts.insert(*I);
struct SetIntBinOp : public SetTheory::Operator {
virtual void apply2(SetTheory &ST, DagInit *Expr,
RecSet &Set, int64_t N,
- RecSet &Elts) =0;
+ RecSet &Elts, ArrayRef<SMLoc> Loc) =0;
- void apply(SetTheory &ST, DagInit *Expr, RecSet &Elts) {
+ virtual void apply(SetTheory &ST, DagInit *Expr, RecSet &Elts,
+ ArrayRef<SMLoc> Loc) {
if (Expr->arg_size() != 2)
- throw "Operator requires (Op Set, Int) arguments: " + Expr->getAsString();
+ PrintFatalError(Loc, "Operator requires (Op Set, Int) arguments: " +
+ Expr->getAsString());
RecSet Set;
- ST.evaluate(Expr->arg_begin()[0], Set);
- IntInit *II = dynamic_cast<IntInit*>(Expr->arg_begin()[1]);
+ ST.evaluate(Expr->arg_begin()[0], Set, Loc);
+ IntInit *II = dyn_cast<IntInit>(Expr->arg_begin()[1]);
if (!II)
- throw "Second argument must be an integer: " + Expr->getAsString();
- apply2(ST, Expr, Set, II->getValue(), Elts);
+ PrintFatalError(Loc, "Second argument must be an integer: " +
+ Expr->getAsString());
+ apply2(ST, Expr, Set, II->getValue(), Elts, Loc);
}
};
// (shl S, N) Shift left, remove the first N elements.
struct ShlOp : public SetIntBinOp {
- void apply2(SetTheory &ST, DagInit *Expr,
- RecSet &Set, int64_t N,
- RecSet &Elts) {
+ virtual void apply2(SetTheory &ST, DagInit *Expr,
+ RecSet &Set, int64_t N,
+ RecSet &Elts, ArrayRef<SMLoc> Loc) {
if (N < 0)
- throw "Positive shift required: " + Expr->getAsString();
+ PrintFatalError(Loc, "Positive shift required: " +
+ Expr->getAsString());
if (unsigned(N) < Set.size())
Elts.insert(Set.begin() + N, Set.end());
}
// (trunc S, N) Truncate after the first N elements.
struct TruncOp : public SetIntBinOp {
- void apply2(SetTheory &ST, DagInit *Expr,
- RecSet &Set, int64_t N,
- RecSet &Elts) {
+ virtual void apply2(SetTheory &ST, DagInit *Expr,
+ RecSet &Set, int64_t N,
+ RecSet &Elts, ArrayRef<SMLoc> Loc) {
if (N < 0)
- throw "Positive length required: " + Expr->getAsString();
+ PrintFatalError(Loc, "Positive length required: " +
+ Expr->getAsString());
if (unsigned(N) > Set.size())
N = Set.size();
Elts.insert(Set.begin(), Set.begin() + N);
RotOp(bool Rev) : Reverse(Rev) {}
- void apply2(SetTheory &ST, DagInit *Expr,
- RecSet &Set, int64_t N,
- RecSet &Elts) {
+ virtual void apply2(SetTheory &ST, DagInit *Expr,
+ RecSet &Set, int64_t N,
+ RecSet &Elts, ArrayRef<SMLoc> Loc) {
if (Reverse)
N = -N;
// N > 0 -> rotate left, N < 0 -> rotate right.
// (decimate S, N) Pick every N'th element of S.
struct DecimateOp : public SetIntBinOp {
- void apply2(SetTheory &ST, DagInit *Expr,
- RecSet &Set, int64_t N,
- RecSet &Elts) {
+ virtual void apply2(SetTheory &ST, DagInit *Expr,
+ RecSet &Set, int64_t N,
+ RecSet &Elts, ArrayRef<SMLoc> Loc) {
if (N <= 0)
- throw "Positive stride required: " + Expr->getAsString();
+ PrintFatalError(Loc, "Positive stride required: " +
+ Expr->getAsString());
for (unsigned I = 0; I < Set.size(); I += N)
Elts.insert(Set[I]);
}
};
+// (interleave S1, S2, ...) Interleave elements of the arguments.
+struct InterleaveOp : public SetTheory::Operator {
+ virtual void apply(SetTheory &ST, DagInit *Expr, RecSet &Elts,
+ ArrayRef<SMLoc> Loc) {
+ // Evaluate the arguments individually.
+ SmallVector<RecSet, 4> Args(Expr->getNumArgs());
+ unsigned MaxSize = 0;
+ for (unsigned i = 0, e = Expr->getNumArgs(); i != e; ++i) {
+ ST.evaluate(Expr->getArg(i), Args[i], Loc);
+ MaxSize = std::max(MaxSize, unsigned(Args[i].size()));
+ }
+ // Interleave arguments into Elts.
+ for (unsigned n = 0; n != MaxSize; ++n)
+ for (unsigned i = 0, e = Expr->getNumArgs(); i != e; ++i)
+ if (n < Args[i].size())
+ Elts.insert(Args[i][n]);
+ }
+};
+
// (sequence "Format", From, To) Generate a sequence of records by name.
struct SequenceOp : public SetTheory::Operator {
- void apply(SetTheory &ST, DagInit *Expr, RecSet &Elts) {
- if (Expr->arg_size() != 3)
- throw "Bad args to (sequence \"Format\", From, To): " +
- Expr->getAsString();
+ virtual void apply(SetTheory &ST, DagInit *Expr, RecSet &Elts,
+ ArrayRef<SMLoc> Loc) {
+ int Step = 1;
+ if (Expr->arg_size() > 4)
+ PrintFatalError(Loc, "Bad args to (sequence \"Format\", From, To): " +
+ Expr->getAsString());
+ else if (Expr->arg_size() == 4) {
+ if (IntInit *II = dyn_cast<IntInit>(Expr->arg_begin()[3])) {
+ Step = II->getValue();
+ } else
+ PrintFatalError(Loc, "Stride must be an integer: " +
+ Expr->getAsString());
+ }
+
std::string Format;
- if (StringInit *SI = dynamic_cast<StringInit*>(Expr->arg_begin()[0]))
+ if (StringInit *SI = dyn_cast<StringInit>(Expr->arg_begin()[0]))
Format = SI->getValue();
else
- throw "Format must be a string: " + Expr->getAsString();
+ PrintFatalError(Loc, "Format must be a string: " + Expr->getAsString());
int64_t From, To;
- if (IntInit *II = dynamic_cast<IntInit*>(Expr->arg_begin()[1]))
+ if (IntInit *II = dyn_cast<IntInit>(Expr->arg_begin()[1]))
From = II->getValue();
else
- throw "From must be an integer: " + Expr->getAsString();
+ PrintFatalError(Loc, "From must be an integer: " + Expr->getAsString());
if (From < 0 || From >= (1 << 30))
- throw "From out of range";
+ PrintFatalError(Loc, "From out of range");
- if (IntInit *II = dynamic_cast<IntInit*>(Expr->arg_begin()[2]))
+ if (IntInit *II = dyn_cast<IntInit>(Expr->arg_begin()[2]))
To = II->getValue();
else
- throw "From must be an integer: " + Expr->getAsString();
+ PrintFatalError(Loc, "From must be an integer: " + Expr->getAsString());
if (To < 0 || To >= (1 << 30))
- throw "To out of range";
+ PrintFatalError(Loc, "To out of range");
RecordKeeper &Records =
- dynamic_cast<DefInit&>(*Expr->getOperator()).getDef()->getRecords();
-
- int Step = From <= To ? 1 : -1;
- for (To += Step; From != To; From += Step) {
+ cast<DefInit>(Expr->getOperator())->getDef()->getRecords();
+
+ Step *= From <= To ? 1 : -1;
+ while (true) {
+ if (Step > 0 && From > To)
+ break;
+ else if (Step < 0 && From < To)
+ break;
std::string Name;
raw_string_ostream OS(Name);
OS << format(Format.c_str(), unsigned(From));
Record *Rec = Records.getDef(OS.str());
if (!Rec)
- throw "No def named '" + Name + "': " + Expr->getAsString();
+ PrintFatalError(Loc, "No def named '" + Name + "': " +
+ Expr->getAsString());
// Try to reevaluate Rec in case it is a set.
if (const RecVec *Result = ST.expand(Rec))
Elts.insert(Result->begin(), Result->end());
else
Elts.insert(Rec);
+
+ From += Step;
}
}
};
FieldExpander(StringRef fn) : FieldName(fn) {}
- void expand(SetTheory &ST, Record *Def, RecSet &Elts) {
- ST.evaluate(Def->getValueInit(FieldName), Elts);
+ virtual void expand(SetTheory &ST, Record *Def, RecSet &Elts) {
+ ST.evaluate(Def->getValueInit(FieldName), Elts, Def->getLoc());
}
};
} // end anonymous namespace
+// pin vtables to this file
+void SetTheory::Operator::anchor() {}
+void SetTheory::Expander::anchor() {}
+
+
SetTheory::SetTheory() {
addOperator("add", new AddOp);
addOperator("sub", new SubOp);
addOperator("rotl", new RotOp(false));
addOperator("rotr", new RotOp(true));
addOperator("decimate", new DecimateOp);
+ addOperator("interleave", new InterleaveOp);
addOperator("sequence", new SequenceOp);
}
addExpander(ClassName, new FieldExpander(FieldName));
}
-void SetTheory::evaluate(Init *Expr, RecSet &Elts) {
+void SetTheory::evaluate(Init *Expr, RecSet &Elts, ArrayRef<SMLoc> Loc) {
// A def in a list can be a just an element, or it may expand.
- if (DefInit *Def = dynamic_cast<DefInit*>(Expr)) {
+ if (DefInit *Def = dyn_cast<DefInit>(Expr)) {
if (const RecVec *Result = expand(Def->getDef()))
return Elts.insert(Result->begin(), Result->end());
Elts.insert(Def->getDef());
}
// Lists simply expand.
- if (ListInit *LI = dynamic_cast<ListInit*>(Expr))
- return evaluate(LI->begin(), LI->end(), Elts);
+ if (ListInit *LI = dyn_cast<ListInit>(Expr))
+ return evaluate(LI->begin(), LI->end(), Elts, Loc);
// Anything else must be a DAG.
- DagInit *DagExpr = dynamic_cast<DagInit*>(Expr);
+ DagInit *DagExpr = dyn_cast<DagInit>(Expr);
if (!DagExpr)
- throw "Invalid set element: " + Expr->getAsString();
- DefInit *OpInit = dynamic_cast<DefInit*>(DagExpr->getOperator());
+ PrintFatalError(Loc, "Invalid set element: " + Expr->getAsString());
+ DefInit *OpInit = dyn_cast<DefInit>(DagExpr->getOperator());
if (!OpInit)
- throw "Bad set expression: " + Expr->getAsString();
+ PrintFatalError(Loc, "Bad set expression: " + Expr->getAsString());
Operator *Op = Operators.lookup(OpInit->getDef()->getName());
if (!Op)
- throw "Unknown set operator: " + Expr->getAsString();
- Op->apply(*this, DagExpr, Elts);
+ PrintFatalError(Loc, "Unknown set operator: " + Expr->getAsString());
+ Op->apply(*this, DagExpr, Elts, Loc);
}
const RecVec *SetTheory::expand(Record *Set) {
return &I->second;
// This is the first time we see Set. Find a suitable expander.
- try {
- const std::vector<Record*> &SC = Set->getSuperClasses();
- for (unsigned i = 0, e = SC.size(); i != e; ++i)
- if (Expander *Exp = Expanders.lookup(SC[i]->getName())) {
- // This breaks recursive definitions.
- RecVec &EltVec = Expansions[Set];
- RecSet Elts;
- Exp->expand(*this, Set, Elts);
- EltVec.assign(Elts.begin(), Elts.end());
- return &EltVec;
- }
- } catch (const std::string &Error) {
- throw TGError(Set->getLoc(), Error);
+ const std::vector<Record*> &SC = Set->getSuperClasses();
+ for (unsigned i = 0, e = SC.size(); i != e; ++i) {
+ // Skip unnamed superclasses.
+ if (!dyn_cast<StringInit>(SC[i]->getNameInit()))
+ continue;
+ if (Expander *Exp = Expanders.lookup(SC[i]->getName())) {
+ // This breaks recursive definitions.
+ RecVec &EltVec = Expansions[Set];
+ RecSet Elts;
+ Exp->expand(*this, Set, Elts);
+ EltVec.assign(Elts.begin(), Elts.end());
+ return &EltVec;
+ }
}
// Set is not expandable.
projects / oota-llvm.git / blobdiff