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rename a couple of methods, add structure for pattern parsing
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23364 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -527,14 +527,14 @@ void DAGISelEmitter::ParseNodeTransforms(std::ostream &OS) {
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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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/// references left inside a pattern fragment to a pattern fragment.
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/// ParsePatternFragments - Parse all of the PatFrag definitions in the .td
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/// file, building up the PatternFragments map. After we've collected them all,
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/// inline fragments together as necessary, so that there are no references left
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/// inside a pattern fragment to a pattern fragment.
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///
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/// This also emits all of the predicate functions to the output file.
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///
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void DAGISelEmitter::ParseAndResolvePatternFragments(std::ostream &OS) {
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void DAGISelEmitter::ParsePatternFragments(std::ostream &OS) {
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std::vector<Record*> Fragments = Records.getAllDerivedDefinitions("PatFrag");
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// First step, parse all of the fragments and emit predicate functions.
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@ -739,10 +739,10 @@ FindPatternInputsAndOutputs(TreePattern *I, TreePatternNode *Pat,
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}
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/// ParseAndResolveInstructions - Parse all of the instructions, inlining and
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/// resolving any fragments involved. This populates the Instructions list with
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/// fully resolved instructions.
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void DAGISelEmitter::ParseAndResolveInstructions() {
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/// ParseInstructions - Parse all of the instructions, inlining and resolving
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/// any fragments involved. This populates the Instructions list with fully
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/// resolved instructions.
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void DAGISelEmitter::ParseInstructions() {
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std::vector<Record*> Instrs = Records.getAllDerivedDefinitions("Instruction");
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for (unsigned i = 0, e = Instrs.size(); i != e; ++i) {
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@ -888,12 +888,22 @@ void DAGISelEmitter::ParseAndResolveInstructions() {
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TreePatternNode *SrcPattern = Pattern->getChild(1)->clone();
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TreePatternNode *DstPattern = Instructions[i].getResultPattern();
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PatternsToMatch.push_back(std::make_pair(SrcPattern, DstPattern));
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DEBUG(std::cerr << "PATTERN TO MATCH: "; SrcPattern->dump();
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std::cerr << "\nRESULT DAG : ";
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DstPattern->dump(); std::cerr << "\n");
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}
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}
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void DAGISelEmitter::ParsePatterns() {
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DEBUG(std::cerr << "\n\nPARSED PATTERNS TO MATCH:\n\n";
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for (unsigned i = 0, e = PatternsToMatch.size(); i != e; ++i) {
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std::cerr << "PATTERN: "; PatternsToMatch[i].first->dump();
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std::cerr << "\nRESULT: ";PatternsToMatch[i].second->dump();
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std::cerr << "\n";
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});
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}
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void DAGISelEmitter::EmitInstructionSelector(std::ostream &OS) {
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// Emit boilerplate.
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OS << "// The main instruction selector code.\n"
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@ -929,9 +939,10 @@ void DAGISelEmitter::run(std::ostream &OS) {
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<< "methods.\n\n";
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ParseNodeInfo();
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ParseNodeTransforms(OS);
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ParseAndResolvePatternFragments(OS);
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ParseAndResolveInstructions();
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ParsePatternFragments(OS);
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ParseInstructions();
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ParsePatterns();
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// TODO: convert some instructions to expanders if needed or something.
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EmitInstructionSelector(OS);
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@ -333,8 +333,9 @@ public:
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private:
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void ParseNodeInfo();
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void ParseNodeTransforms(std::ostream &OS);
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void ParseAndResolvePatternFragments(std::ostream &OS);
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void ParseAndResolveInstructions();
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void ParsePatternFragments(std::ostream &OS);
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void ParseInstructions();
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void ParsePatterns();
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void FindPatternInputsAndOutputs(TreePattern *I, TreePatternNode *Pat,
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std::map<std::string,
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TreePatternNode*> &InstInputs,
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