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start parsing SDNode info records
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23279 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -18,6 +18,13 @@
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#include <set>
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using namespace llvm;
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//===----------------------------------------------------------------------===//
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// SDNodeInfo implementation
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//
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SDNodeInfo::SDNodeInfo(Record *R) : Def(R) {
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EnumName = R->getValueAsString("Opcode");
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SDClassName = R->getValueAsString("SDClass");
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}
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//===----------------------------------------------------------------------===//
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// TreePatternNode implementation
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@ -349,6 +356,15 @@ void TreePattern::dump() const { print(std::cerr); }
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// DAGISelEmitter implementation
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//
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// Parse all of the SDNode definitions for the target, populating SDNodes.
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void DAGISelEmitter::ParseNodeInfo() {
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std::vector<Record*> Nodes = Records.getAllDerivedDefinitions("SDNode");
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while (!Nodes.empty()) {
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SDNodes.insert(std::make_pair(Nodes.back(), Nodes.back()));
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Nodes.pop_back();
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}
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}
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/// ParseAndResolvePatternFragments - Parse all of the PatFrag definitions in
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/// the .td file, building up the PatternFragments map. After we've collected
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/// them all, inline fragments together as necessary, so that there are no
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@ -458,6 +474,7 @@ void DAGISelEmitter::run(std::ostream &OS) {
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EmitSourceFileHeader("DAG Instruction Selector for the " + Target.getName() +
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" target", OS);
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ParseNodeInfo();
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ParseAndResolvePatternFragments(OS);
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ParseAndResolveInstructions();
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@ -23,6 +23,21 @@ namespace llvm {
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class DagInit;
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class TreePattern;
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class DAGISelEmitter;
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/// SDNodeInfo - One of these records is created for each SDNode instance in
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/// the target .td file. This represents the various dag nodes we will be
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/// processing.
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class SDNodeInfo {
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Record *Def;
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std::string EnumName;
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std::string SDClassName;
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public:
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SDNodeInfo(Record *R); // Parse the specified record.
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Record *getRecord() const { return Def; }
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const std::string &getEnumName() const { return EnumName; }
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const std::string &getSDClassName() const { return SDClassName; }
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};
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/// FIXME: TreePatternNode's can be shared in some cases (due to dag-shaped
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/// patterns), and as such should be ref counted. We currently just leak all
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@ -181,6 +196,7 @@ class DAGISelEmitter : public TableGenBackend {
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RecordKeeper &Records;
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CodeGenTarget Target;
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std::map<Record*, SDNodeInfo> SDNodes;
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std::map<Record*, TreePattern*> PatternFragments;
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std::vector<TreePattern*> Instructions;
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public:
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@ -188,6 +204,11 @@ public:
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// run - Output the isel, returning true on failure.
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void run(std::ostream &OS);
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const SDNodeInfo &getSDNodeInfo(Record *R) const {
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assert(SDNodes.count(R) && "Unknown node!");
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return SDNodes.find(R)->second;
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}
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TreePattern *getPatternFragment(Record *R) const {
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assert(PatternFragments.count(R) && "Invalid pattern fragment request!");
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@ -195,6 +216,7 @@ public:
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}
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private:
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void ParseNodeInfo();
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void ParseAndResolvePatternFragments(std::ostream &OS);
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void ParseAndResolveInstructions();
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void EmitInstructionSelector(std::ostream &OS);
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