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put instructions into a map instead of a vector for quick lookup

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23368 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2005-09-15 21:57:35 +00:00
parent ae6d828de8
commit ae5b350b3b
2 changed files with 18 additions and 7 deletions
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18
utils/TableGen/DAGISelEmitter.cpp
View File

@ -326,6 +326,10 @@ bool TreePatternNode::ApplyTypeConstraints(TreePattern &TP) {
return MadeChange;
} else {
assert(getOperator()->isSubClassOf("Instruction") && "Unknown node type!");
const DAGInstruction &Inst =
TP.getDAGISelEmitter().getInstruction(getOperator());
// TODO: type inference for instructions.
return false;
}
@ -874,13 +878,15 @@ void DAGISelEmitter::ParseInstructions() {
new TreePatternNode(I->getRecord(), ResultNodeOperands);
DEBUG(I->dump());
Instructions.push_back(DAGInstruction(I, ResultTypes, OperandTypes,
ResultPattern));
Instructions.insert(std::make_pair(I->getRecord(),
DAGInstruction(I, ResultTypes,
OperandTypes, ResultPattern)));
}
// If we can, convert the instructions to be patterns that are matched!
for (unsigned i = 0, e = Instructions.size(); i != e; ++i) {
TreePattern *I = Instructions[i].getPattern();
for (std::map<Record*, DAGInstruction>::iterator II = Instructions.begin(),
E = Instructions.end(); II != E; ++II) {
TreePattern *I = II->second.getPattern();
if (I->getNumTrees() != 1) {
std::cerr << "CANNOT HANDLE: " << I->getRecord()->getName() << " yet!";
@ -894,7 +900,7 @@ void DAGISelEmitter::ParseInstructions() {
continue; // Not a set of a single value (not handled so far)
TreePatternNode *SrcPattern = Pattern->getChild(1)->clone();
TreePatternNode *DstPattern = Instructions[i].getResultPattern();
TreePatternNode *DstPattern = II->second.getResultPattern();
PatternsToMatch.push_back(std::make_pair(SrcPattern, DstPattern));
}
}
@ -931,7 +937,7 @@ void DAGISelEmitter::ParsePatterns() {
// never do anything with this pattern: report it to the user.
#if 0 // FIXME: ENABLE when we can infer though instructions!
if (!Result->InferAllTypes())
Result->error("Could not infer all types in pattern!");
Result->error("Could not infer all types in pattern result!");
#endif
if (Result->getNumTrees() != 1)

7
utils/TableGen/DAGISelEmitter.h
View File

@ -317,7 +317,7 @@ class DAGISelEmitter : public TableGenBackend {
std::map<Record*, SDNodeInfo> SDNodes;
std::map<Record*, std::pair<Record*, std::string> > SDNodeXForms;
std::map<Record*, TreePattern*> PatternFragments;
std::vector<DAGInstruction> Instructions;
std::map<Record*, DAGInstruction> Instructions;
/// PatternsToMatch - All of the things we are matching on the DAG. The first
/// value is the pattern to match, the second pattern is the result to
@ -344,6 +344,11 @@ public:
return SDNodeXForms.find(R)->second;
}
const DAGInstruction &getInstruction(Record *R) const {
assert(Instructions.count(R) && "Unknown instruction!");
return Instructions.find(R)->second;
}
private:
void ParseNodeInfo();
void ParseNodeTransforms(std::ostream &OS);