+ if (!NodeXForms.empty()) {
+ OS << "SDValue RunSDNodeXForm(SDValue V, unsigned XFormNo) {\n";
+ OS << " switch (XFormNo) {\n";
+ OS << " default: assert(0 && \"Invalid xform # in table?\");\n";
+
+ // FIXME: The node xform could take SDValue's instead of SDNode*'s.
+ for (unsigned i = 0, e = NodeXForms.size(); i != e; ++i) {
+ const CodeGenDAGPatterns::NodeXForm &Entry =
+ CGP.getSDNodeTransform(NodeXForms[i]);
+
+ Record *SDNode = Entry.first;
+ const std::string &Code = Entry.second;
+
+ OS << " case " << i << ": { ";
+ if (!OmitComments)
+ OS << "// " << NodeXForms[i]->getName();
+ OS << '\n';
+
+ std::string ClassName = CGP.getSDNodeInfo(SDNode).getSDClassName();
+ if (ClassName == "SDNode")
+ OS << " SDNode *N = V.getNode();\n";
+ else
+ OS << " " << ClassName << " *N = cast<" << ClassName
+ << ">(V.getNode());\n";
+ OS << Code << "\n }\n";
+ }
+ OS << " }\n";
+ OS << "}\n\n";
+ }
+}
+
+static void BuildHistogram(const Matcher *M, std::vector<unsigned> &OpcodeFreq){
+ for (; M != 0; M = M->getNext()) {
+ // Count this node.
+ if (unsigned(M->getKind()) >= OpcodeFreq.size())
+ OpcodeFreq.resize(M->getKind()+1);
+ OpcodeFreq[M->getKind()]++;
+
+ // Handle recursive nodes.
+ if (const ScopeMatcher *SM = dyn_cast<ScopeMatcher>(M)) {
+ for (unsigned i = 0, e = SM->getNumChildren(); i != e; ++i)
+ BuildHistogram(SM->getChild(i), OpcodeFreq);
+ } else if (const SwitchOpcodeMatcher *SOM =
+ dyn_cast<SwitchOpcodeMatcher>(M)) {
+ for (unsigned i = 0, e = SOM->getNumCases(); i != e; ++i)
+ BuildHistogram(SOM->getCaseMatcher(i), OpcodeFreq);
+ } else if (const SwitchTypeMatcher *STM = dyn_cast<SwitchTypeMatcher>(M)) {
+ for (unsigned i = 0, e = STM->getNumCases(); i != e; ++i)
+ BuildHistogram(STM->getCaseMatcher(i), OpcodeFreq);
+ }
+ }
+}
+
+void MatcherTableEmitter::EmitHistogram(const Matcher *M,
+ formatted_raw_ostream &OS) {
+ if (OmitComments)
+ return;
+
+ std::vector<unsigned> OpcodeFreq;
+ BuildHistogram(M, OpcodeFreq);