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Print SelectionDAGs bottom up, include extra info in the node labels
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19447 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -15,6 +15,7 @@
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#include "llvm/CodeGen/MachineFunction.h"
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#include "llvm/Function.h"
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#include "llvm/Support/GraphWriter.h"
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#include "llvm/ADT/StringExtras.h"
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#include <fstream>
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using namespace llvm;
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@ -24,11 +25,13 @@ namespace llvm {
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static std::string getGraphName(const SelectionDAG *G) {
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return G->getMachineFunction().getFunction()->getName();
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}
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static std::string getNodeLabel(const SDNode *Node,
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const SelectionDAG *Graph) {
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return Node->getOperationName();
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static bool renderGraphFromBottomUp() {
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return true;
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}
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static std::string getNodeLabel(const SDNode *Node,
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const SelectionDAG *Graph);
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static std::string getNodeAttributes(const SDNode *N) {
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return "shape=Mrecord";
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}
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@ -41,6 +44,38 @@ namespace llvm {
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};
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}
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std::string DOTGraphTraits<SelectionDAG*>::getNodeLabel(const SDNode *Node,
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const SelectionDAG *G) {
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std::string Op = Node->getOperationName();
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if (const ConstantSDNode *CSDN = dyn_cast<ConstantSDNode>(Node)) {
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Op += ": " + utostr(CSDN->getValue());
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} else if (const ConstantFPSDNode *CSDN = dyn_cast<ConstantFPSDNode>(Node)) {
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Op += ": " + ftostr(CSDN->getValue());
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} else if (const GlobalAddressSDNode *GADN =
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dyn_cast<GlobalAddressSDNode>(Node)) {
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Op += ": " + GADN->getGlobal()->getName();
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} else if (const FrameIndexSDNode *FIDN =
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dyn_cast<FrameIndexSDNode>(Node)) {
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Op += " " + itostr(FIDN->getIndex());
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} else if (const ConstantPoolSDNode *CP = dyn_cast<ConstantPoolSDNode>(Node)){
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Op += "<" + utostr(CP->getIndex()) + ">";
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} else if (const BasicBlockSDNode *BBDN =
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dyn_cast<BasicBlockSDNode>(Node)) {
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Op = "BB: ";
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const Value *LBB = (const Value*)BBDN->getBasicBlock()->getBasicBlock();
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if (LBB)
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Op += LBB->getName();
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//Op += " " + (const void*)BBDN->getBasicBlock();
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} else if (const CopyRegSDNode *C2V = dyn_cast<CopyRegSDNode>(Node)) {
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Op += " #" + utostr(C2V->getReg());
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} else if (const ExternalSymbolSDNode *ES =
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dyn_cast<ExternalSymbolSDNode>(Node)) {
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Op += "'" + std::string(ES->getSymbol()) + "'";
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}
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return Op;
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}
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/// viewGraph - Pop up a ghostview window with the reachable parts of the DAG
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/// rendered using 'dot'.
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///
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