#include "TableGenBackend.h"
#include "CodeGenTarget.h"
+#include <set>
namespace llvm {
class Record;
class TreePattern;
class TreePatternNode;
class DAGISelEmitter;
+ class ComplexPattern;
/// MVT::DAGISelGenValueType - These are some extended forms of MVT::ValueType
/// that we use as lattice values during type inferrence.
unsigned OperandNo; // The operand # this constraint applies to.
enum {
- SDTCisVT, SDTCisInt, SDTCisFP, SDTCisSameAs, SDTCisVTSmallerThanOp,
- SDTCisOpSmallerThanOp
+ SDTCisVT, SDTCisPtrTy, SDTCisInt, SDTCisFP, SDTCisSameAs,
+ SDTCisVTSmallerThanOp, SDTCisOpSmallerThanOp, SDTCisIntVectorOfSameSize
} ConstraintType;
union { // The discriminated union.
struct {
unsigned BigOperandNum;
} SDTCisOpSmallerThanOp_Info;
+ struct {
+ unsigned OtherOperandNum;
+ } SDTCisIntVectorOfSameSize_Info;
} x;
/// ApplyTypeConstraint - Given a node in a pattern, apply this type
}
// SelectionDAG node properties.
- enum SDNP { SDNPCommutative, SDNPAssociative };
+ enum SDNP { SDNPCommutative, SDNPAssociative, SDNPHasChain,
+ SDNPOutFlag, SDNPInFlag, SDNPOptInFlag };
/// hasProperty - Return true if this node has the specified property.
///
/// patterns), and as such should be ref counted. We currently just leak all
/// TreePatternNode objects!
class TreePatternNode {
- /// The inferred type for this node, or MVT::LAST_VALUETYPE if it hasn't
+ /// The inferred type for this node, or MVT::isUnknown if it hasn't
/// been determined yet.
- unsigned char Ty;
+ std::vector<unsigned char> Types;
/// Operator - The Record for the operator if this is an interior node (not
/// a leaf).
std::vector<TreePatternNode*> Children;
public:
TreePatternNode(Record *Op, const std::vector<TreePatternNode*> &Ch)
- : Ty(MVT::isUnknown), Operator(Op), Val(0), TransformFn(0),
- Children(Ch) {}
+ : Types(), Operator(Op), Val(0), TransformFn(0),
+ Children(Ch) { Types.push_back(MVT::isUnknown); }
TreePatternNode(Init *val) // leaf ctor
- : Ty(MVT::isUnknown), Operator(0), Val(val), TransformFn(0) {}
+ : Types(), Operator(0), Val(val), TransformFn(0) {
+ Types.push_back(MVT::isUnknown);
+ }
~TreePatternNode();
const std::string &getName() const { return Name; }
void setName(const std::string &N) { Name = N; }
bool isLeaf() const { return Val != 0; }
- bool hasTypeSet() const { return Ty < MVT::LAST_VALUETYPE; }
+ bool hasTypeSet() const { return Types[0] < MVT::LAST_VALUETYPE; }
bool isTypeCompletelyUnknown() const {
- return Ty == MVT::isUnknown;
+ return Types[0] == MVT::isUnknown;
}
- MVT::ValueType getType() const {
+ MVT::ValueType getTypeNum(unsigned Num) const {
assert(hasTypeSet() && "Doesn't have a type yet!");
- return (MVT::ValueType)Ty;
+ assert(Types.size() > Num && "Type num out of range!");
+ return (MVT::ValueType)Types[Num];
}
- unsigned char getExtType() const { return Ty; }
- void setType(unsigned char VT) { Ty = VT; }
+ unsigned char getExtTypeNum(unsigned Num) const {
+ assert(Types.size() > Num && "Extended type num out of range!");
+ return Types[Num];
+ }
+ const std::vector<unsigned char> &getExtTypes() const { return Types; }
+ void setTypes(const std::vector<unsigned char> &T) { Types = T; }
+ void removeTypes() { Types = std::vector<unsigned char>(1,MVT::isUnknown); }
Init *getLeafValue() const { assert(isLeaf()); return Val; }
Record *getOperator() const { assert(!isLeaf()); return Operator; }
Children[i] = N;
}
+
const std::string &getPredicateFn() const { return PredicateFn; }
void setPredicateFn(const std::string &Fn) { PredicateFn = Fn; }
/// information. If N already contains a conflicting type, then throw an
/// exception. This returns true if any information was updated.
///
- bool UpdateNodeType(unsigned char EVT, TreePattern &TP);
+ bool UpdateNodeType(const std::vector<unsigned char> &ExtVTs,
+ TreePattern &TP);
+ bool UpdateNodeType(unsigned char ExtVT, TreePattern &TP) {
+ std::vector<unsigned char> ExtVTs(1, ExtVT);
+ return UpdateNodeType(ExtVTs, TP);
+ }
/// ContainsUnresolvedType - Return true if this tree contains any
/// unresolved types.
/// ISE - the DAG isel emitter coordinating this madness.
///
DAGISelEmitter &ISE;
+
+ /// isInputPattern - True if this is an input pattern, something to match.
+ /// False if this is an output pattern, something to emit.
+ bool isInputPattern;
public:
/// TreePattern constructor - Parse the specified DagInits into the
/// current record.
- TreePattern(Record *TheRec, ListInit *RawPat, DAGISelEmitter &ise);
- TreePattern(Record *TheRec, DagInit *Pat, DAGISelEmitter &ise);
- TreePattern(Record *TheRec, TreePatternNode *Pat, DAGISelEmitter &ise);
+ TreePattern(Record *TheRec, ListInit *RawPat, bool isInput,
+ DAGISelEmitter &ise);
+ TreePattern(Record *TheRec, DagInit *Pat, bool isInput,
+ DAGISelEmitter &ise);
+ TreePattern(Record *TheRec, TreePatternNode *Pat, bool isInput,
+ DAGISelEmitter &ise);
/// getTrees - Return the tree patterns which corresponds to this pattern.
///
class DAGInstruction {
TreePattern *Pattern;
- unsigned NumResults;
- unsigned NumOperands;
- std::vector<MVT::ValueType> ResultTypes;
- std::vector<MVT::ValueType> OperandTypes;
+ std::vector<Record*> Results;
+ std::vector<Record*> Operands;
+ std::vector<Record*> ImpResults;
+ std::vector<Record*> ImpOperands;
TreePatternNode *ResultPattern;
public:
DAGInstruction(TreePattern *TP,
- const std::vector<MVT::ValueType> &resultTypes,
- const std::vector<MVT::ValueType> &operandTypes)
- : Pattern(TP), ResultTypes(resultTypes), OperandTypes(operandTypes),
+ const std::vector<Record*> &results,
+ const std::vector<Record*> &operands,
+ const std::vector<Record*> &impresults,
+ const std::vector<Record*> &impoperands)
+ : Pattern(TP), Results(results), Operands(operands),
+ ImpResults(impresults), ImpOperands(impoperands),
ResultPattern(0) {}
TreePattern *getPattern() const { return Pattern; }
- unsigned getNumResults() const { return ResultTypes.size(); }
- unsigned getNumOperands() const { return OperandTypes.size(); }
+ unsigned getNumResults() const { return Results.size(); }
+ unsigned getNumOperands() const { return Operands.size(); }
+ unsigned getNumImpResults() const { return ImpResults.size(); }
+ unsigned getNumImpOperands() const { return ImpOperands.size(); }
void setResultPattern(TreePatternNode *R) { ResultPattern = R; }
- MVT::ValueType getResultType(unsigned RN) const {
- assert(RN < ResultTypes.size());
- return ResultTypes[RN];
+ Record *getResult(unsigned RN) const {
+ assert(RN < Results.size());
+ return Results[RN];
+ }
+
+ Record *getOperand(unsigned ON) const {
+ assert(ON < Operands.size());
+ return Operands[ON];
+ }
+
+ Record *getImpResult(unsigned RN) const {
+ assert(RN < ImpResults.size());
+ return ImpResults[RN];
}
- MVT::ValueType getOperandType(unsigned ON) const {
- assert(ON < OperandTypes.size());
- return OperandTypes[ON];
+ Record *getImpOperand(unsigned ON) const {
+ assert(ON < ImpOperands.size());
+ return ImpOperands[ON];
}
+
TreePatternNode *getResultPattern() const { return ResultPattern; }
};
-
-/// InstrSelectorEmitter - The top-level class which coordinates construction
+/// PatternToMatch - Used by DAGISelEmitter to keep tab of patterns processed
+/// to produce isel.
+struct PatternToMatch {
+ PatternToMatch(ListInit *preds, TreePatternNode *src, TreePatternNode *dst):
+ Predicates(preds), SrcPattern(src), DstPattern(dst) {};
+
+ ListInit *Predicates; // Top level predicate conditions to match.
+ TreePatternNode *SrcPattern; // Source pattern to match.
+ TreePatternNode *DstPattern; // Resulting pattern.
+
+ ListInit *getPredicates() const { return Predicates; }
+ TreePatternNode *getSrcPattern() const { return SrcPattern; }
+ TreePatternNode *getDstPattern() const { return DstPattern; }
+};
+
+/// DAGISelEmitter - The top-level class which coordinates construction
/// and emission of the instruction selector.
///
class DAGISelEmitter : public TableGenBackend {
-public:
- typedef std::pair<TreePatternNode*, TreePatternNode*> PatternToMatch;
private:
RecordKeeper &Records;
CodeGenTarget Target;
-
+
std::map<Record*, SDNodeInfo> SDNodes;
std::map<Record*, std::pair<Record*, std::string> > SDNodeXForms;
+ std::map<Record*, ComplexPattern> ComplexPatterns;
std::map<Record*, TreePattern*> PatternFragments;
std::map<Record*, DAGInstruction> Instructions;
const CodeGenTarget &getTargetInfo() const { return Target; }
+ Record *getSDNodeNamed(const std::string &Name) const;
+
const SDNodeInfo &getSDNodeInfo(Record *R) const {
assert(SDNodes.count(R) && "Unknown node!");
return SDNodes.find(R)->second;
}
- TreePattern *getPatternFragment(Record *R) const {
- assert(PatternFragments.count(R) && "Invalid pattern fragment request!");
- return PatternFragments.find(R)->second;
- }
-
const std::pair<Record*, std::string> &getSDNodeTransform(Record *R) const {
assert(SDNodeXForms.count(R) && "Invalid transform!");
return SDNodeXForms.find(R)->second;
}
+
+ const ComplexPattern &getComplexPattern(Record *R) const {
+ assert(ComplexPatterns.count(R) && "Unknown addressing mode!");
+ return ComplexPatterns.find(R)->second;
+ }
+
+ TreePattern *getPatternFragment(Record *R) const {
+ assert(PatternFragments.count(R) && "Invalid pattern fragment request!");
+ return PatternFragments.find(R)->second;
+ }
const DAGInstruction &getInstruction(Record *R) const {
assert(Instructions.count(R) && "Unknown instruction!");
private:
void ParseNodeInfo();
void ParseNodeTransforms(std::ostream &OS);
+ void ParseComplexPatterns();
void ParsePatternFragments(std::ostream &OS);
void ParseInstructions();
void ParsePatterns();
void FindPatternInputsAndOutputs(TreePattern *I, TreePatternNode *Pat,
std::map<std::string,
TreePatternNode*> &InstInputs,
- std::map<std::string, Record*> &InstResults);
- void EmitMatchForPattern(TreePatternNode *N, const std::string &RootName,
- std::map<std::string,std::string> &VarMap,
- unsigned PatternNo, std::ostream &OS);
- unsigned CodeGenPatternResult(TreePatternNode *N, unsigned &Ctr,
- std::map<std::string,std::string> &VariableMap,
- std::ostream &OS, bool isRoot = false);
- void EmitCodeForPattern(PatternToMatch &Pattern, std::ostream &OS);
+ std::map<std::string,
+ TreePatternNode*> &InstResults,
+ std::vector<Record*> &InstImpInputs,
+ std::vector<Record*> &InstImpResults);
+ void GenerateCodeForPattern(PatternToMatch &Pattern,
+ std::vector<std::pair<bool, std::string> > &GeneratedCode,
+ std::set<std::pair<bool, std::string> > &GeneratedDecl,
+ bool UseGoto);
+ void EmitPatterns(std::vector<std::pair<PatternToMatch*,
+ std::vector<std::pair<bool, std::string> > > > &Patterns,
+ unsigned Indent, std::ostream &OS);
void EmitInstructionSelector(std::ostream &OS);
};
projects / oota-llvm.git / blobdiff