//===-- SelectionDAGPrinter.cpp - Implement SelectionDAG::viewGraph() -----===//
-//
+//
// The LLVM Compiler Infrastructure
//
-// This file was developed by the LLVM research group and is distributed under
-// the University of Illinois Open Source License. See LICENSE.TXT for details.
-//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
//===----------------------------------------------------------------------===//
//
// This implements the SelectionDAG::viewGraph method.
//
//===----------------------------------------------------------------------===//
+#include "llvm/Constants.h"
+#include "llvm/Function.h"
+#include "llvm/Assembly/Writer.h"
#include "llvm/CodeGen/SelectionDAG.h"
+#include "llvm/CodeGen/ScheduleDAG.h"
+#include "llvm/CodeGen/MachineConstantPool.h"
#include "llvm/CodeGen/MachineFunction.h"
-#include "llvm/Function.h"
+#include "llvm/Target/MRegisterInfo.h"
+#include "llvm/Target/TargetMachine.h"
#include "llvm/Support/GraphWriter.h"
#include "llvm/ADT/StringExtras.h"
+#include "llvm/Config/config.h"
#include <fstream>
+#include <sstream>
using namespace llvm;
namespace llvm {
static bool renderGraphFromBottomUp() {
return true;
}
+
+ static bool hasNodeAddressLabel(const SDNode *Node,
+ const SelectionDAG *Graph) {
+ return true;
+ }
+
+ /// If you want to override the dot attributes printed for a particular
+ /// edge, override this method.
+ template<typename EdgeIter>
+ static std::string getEdgeAttributes(const void *Node, EdgeIter EI) {
+ SDOperand Op = EI.getNode()->getOperand(EI.getOperand());
+ MVT::ValueType VT = Op.getValueType();
+ if (VT == MVT::Flag)
+ return "color=red,style=bold";
+ else if (VT == MVT::Other)
+ return "color=blue,style=dashed";
+ return "";
+ }
+
static std::string getNodeLabel(const SDNode *Node,
const SelectionDAG *Graph);
- static std::string getNodeAttributes(const SDNode *N) {
+ static std::string getNodeAttributes(const SDNode *N,
+ const SelectionDAG *Graph) {
+#ifndef NDEBUG
+ const std::string &Attrs = Graph->getGraphAttrs(N);
+ if (!Attrs.empty()) {
+ if (Attrs.find("shape=") == std::string::npos)
+ return std::string("shape=Mrecord,") + Attrs;
+ else
+ return Attrs;
+ }
+#endif
return "shape=Mrecord";
}
static void addCustomGraphFeatures(SelectionDAG *G,
GraphWriter<SelectionDAG*> &GW) {
GW.emitSimpleNode(0, "plaintext=circle", "GraphRoot");
- GW.emitEdge(0, -1, G->getRoot().Val, -1, "");
+ if (G->getRoot().Val)
+ GW.emitEdge(0, -1, G->getRoot().Val, -1, "");
}
};
}
std::string DOTGraphTraits<SelectionDAG*>::getNodeLabel(const SDNode *Node,
const SelectionDAG *G) {
- std::string Op = Node->getOperationName();
-
- for (unsigned i = 0, e = Node->getNumValues(); i != e; ++i) {
- switch (Node->getValueType(i)) {
- default: Op += ":unknownvt!"; break;
- case MVT::Other: Op += ":ch"; break;
- case MVT::i1: Op += ":i1"; break;
- case MVT::i8: Op += ":i8"; break;
- case MVT::i16: Op += ":i16"; break;
- case MVT::i32: Op += ":i32"; break;
- case MVT::i64: Op += ":i64"; break;
- case MVT::i128: Op += ":i128"; break;
- case MVT::f32: Op += ":f32"; break;
- case MVT::f64: Op += ":f64"; break;
- case MVT::f80: Op += ":f80"; break;
- case MVT::f128: Op += ":f128"; break;
- case MVT::isVoid: Op += ":void"; break;
- }
- }
+ std::string Op = Node->getOperationName(G);
+ for (unsigned i = 0, e = Node->getNumValues(); i != e; ++i)
+ if (Node->getValueType(i) == MVT::Other)
+ Op += ":ch";
+ else
+ Op = Op + ":" + MVT::getValueTypeString(Node->getValueType(i));
+
if (const ConstantSDNode *CSDN = dyn_cast<ConstantSDNode>(Node)) {
Op += ": " + utostr(CSDN->getValue());
} else if (const ConstantFPSDNode *CSDN = dyn_cast<ConstantFPSDNode>(Node)) {
- Op += ": " + ftostr(CSDN->getValue());
- } else if (const GlobalAddressSDNode *GADN =
+ Op += ": " + ftostr(CSDN->getValueAPF());
+ } else if (const GlobalAddressSDNode *GADN =
dyn_cast<GlobalAddressSDNode>(Node)) {
+ int offset = GADN->getOffset();
Op += ": " + GADN->getGlobal()->getName();
- } else if (const FrameIndexSDNode *FIDN =
- dyn_cast<FrameIndexSDNode>(Node)) {
+ if (offset > 0)
+ Op += "+" + itostr(offset);
+ else
+ Op += itostr(offset);
+ } else if (const FrameIndexSDNode *FIDN = dyn_cast<FrameIndexSDNode>(Node)) {
Op += " " + itostr(FIDN->getIndex());
+ } else if (const JumpTableSDNode *JTDN = dyn_cast<JumpTableSDNode>(Node)) {
+ Op += " " + itostr(JTDN->getIndex());
} else if (const ConstantPoolSDNode *CP = dyn_cast<ConstantPoolSDNode>(Node)){
- Op += "<" + utostr(CP->getIndex()) + ">";
- } else if (const BasicBlockSDNode *BBDN =
- dyn_cast<BasicBlockSDNode>(Node)) {
+ if (CP->isMachineConstantPoolEntry()) {
+ std::ostringstream SS;
+ CP->getMachineCPVal()->print(SS);
+ Op += "<" + SS.str() + ">";
+ } else {
+ if (ConstantFP *CFP = dyn_cast<ConstantFP>(CP->getConstVal()))
+ Op += "<" + ftostr(CFP->getValueAPF()) + ">";
+ else if (ConstantInt *CI = dyn_cast<ConstantInt>(CP->getConstVal()))
+ Op += "<" + utostr(CI->getZExtValue()) + ">";
+ else {
+ std::ostringstream SS;
+ WriteAsOperand(SS, CP->getConstVal(), false);
+ Op += "<" + SS.str() + ">";
+ }
+ }
+ } else if (const BasicBlockSDNode *BBDN = dyn_cast<BasicBlockSDNode>(Node)) {
Op = "BB: ";
const Value *LBB = (const Value*)BBDN->getBasicBlock()->getBasicBlock();
if (LBB)
Op += LBB->getName();
//Op += " " + (const void*)BBDN->getBasicBlock();
- } else if (const RegSDNode *C2V = dyn_cast<RegSDNode>(Node)) {
- Op += " #" + utostr(C2V->getReg());
+ } else if (const RegisterSDNode *R = dyn_cast<RegisterSDNode>(Node)) {
+ if (G && R->getReg() != 0 &&
+ MRegisterInfo::isPhysicalRegister(R->getReg())) {
+ Op = Op + " " + G->getTarget().getRegisterInfo()->getName(R->getReg());
+ } else {
+ Op += " #" + utostr(R->getReg());
+ }
} else if (const ExternalSymbolSDNode *ES =
dyn_cast<ExternalSymbolSDNode>(Node)) {
Op += "'" + std::string(ES->getSymbol()) + "'";
- } else if (const MVTSDNode *M = dyn_cast<MVTSDNode>(Node)) {
- Op = Op + " ty=" + MVT::getValueTypeString(M->getExtraValueType());
+ } else if (const SrcValueSDNode *M = dyn_cast<SrcValueSDNode>(Node)) {
+ if (M->getValue())
+ Op += "<" + M->getValue()->getName() + ":" + itostr(M->getOffset()) + ">";
+ else
+ Op += "<null:" + itostr(M->getOffset()) + ">";
+ } else if (const VTSDNode *N = dyn_cast<VTSDNode>(Node)) {
+ Op = Op + " VT=" + MVT::getValueTypeString(N->getVT());
+ } else if (const StringSDNode *N = dyn_cast<StringSDNode>(Node)) {
+ Op = Op + "\"" + N->getValue() + "\"";
+ } else if (const LoadSDNode *LD = dyn_cast<LoadSDNode>(Node)) {
+ bool doExt = true;
+ switch (LD->getExtensionType()) {
+ default: doExt = false; break;
+ case ISD::EXTLOAD:
+ Op = Op + "<anyext ";
+ break;
+ case ISD::SEXTLOAD:
+ Op = Op + " <sext ";
+ break;
+ case ISD::ZEXTLOAD:
+ Op = Op + " <zext ";
+ break;
+ }
+ if (doExt)
+ Op = Op + MVT::getValueTypeString(LD->getLoadedVT()) + ">";
+
+ Op += LD->getIndexedModeName(LD->getAddressingMode());
+ } else if (const StoreSDNode *ST = dyn_cast<StoreSDNode>(Node)) {
+ if (ST->isTruncatingStore())
+ Op = Op + "<trunc " + MVT::getValueTypeString(ST->getStoredVT()) + ">";
+ Op += ST->getIndexedModeName(ST->getAddressingMode());
}
+
+#if 0
+ Op += " Id=" + itostr(Node->getNodeId());
+#endif
+
return Op;
}
-
+
/// viewGraph - Pop up a ghostview window with the reachable parts of the DAG
/// rendered using 'dot'.
///
void SelectionDAG::viewGraph() {
- std::string Filename = "/tmp/dag." +
- getMachineFunction().getFunction()->getName() + ".dot";
- std::cerr << "Writing '" << Filename << "'... ";
- std::ofstream F(Filename.c_str());
-
- if (!F) {
- std::cerr << " error opening file for writing!\n";
- return;
- }
+// This code is only for debugging!
+#ifndef NDEBUG
+ ViewGraph(this, "dag." + getMachineFunction().getFunction()->getName());
+#else
+ cerr << "SelectionDAG::viewGraph is only available in debug builds on "
+ << "systems with Graphviz or gv!\n";
+#endif // NDEBUG
+}
+
+
+/// clearGraphAttrs - Clear all previously defined node graph attributes.
+/// Intended to be used from a debugging tool (eg. gdb).
+void SelectionDAG::clearGraphAttrs() {
+#ifndef NDEBUG
+ NodeGraphAttrs.clear();
+#else
+ cerr << "SelectionDAG::clearGraphAttrs is only available in debug builds"
+ << " on systems with Graphviz or gv!\n";
+#endif
+}
+
+
+/// setGraphAttrs - Set graph attributes for a node. (eg. "color=red".)
+///
+void SelectionDAG::setGraphAttrs(const SDNode *N, const char *Attrs) {
+#ifndef NDEBUG
+ NodeGraphAttrs[N] = Attrs;
+#else
+ cerr << "SelectionDAG::setGraphAttrs is only available in debug builds"
+ << " on systems with Graphviz or gv!\n";
+#endif
+}
+
+
+/// getGraphAttrs - Get graph attributes for a node. (eg. "color=red".)
+/// Used from getNodeAttributes.
+const std::string SelectionDAG::getGraphAttrs(const SDNode *N) const {
+#ifndef NDEBUG
+ std::map<const SDNode *, std::string>::const_iterator I =
+ NodeGraphAttrs.find(N);
+
+ if (I != NodeGraphAttrs.end())
+ return I->second;
+ else
+ return "";
+#else
+ cerr << "SelectionDAG::getGraphAttrs is only available in debug builds"
+ << " on systems with Graphviz or gv!\n";
+ return std::string("");
+#endif
+}
+
+/// setGraphColor - Convenience for setting node color attribute.
+///
+void SelectionDAG::setGraphColor(const SDNode *N, const char *Color) {
+#ifndef NDEBUG
+ NodeGraphAttrs[N] = std::string("color=") + Color;
+#else
+ cerr << "SelectionDAG::setGraphColor is only available in debug builds"
+ << " on systems with Graphviz or gv!\n";
+#endif
+}
- WriteGraph(F, this);
- F.close();
- std::cerr << "\n";
-
- std::cerr << "Running 'dot' program... " << std::flush;
- if (system(("dot -Tps -Nfontname=Courier -Gsize=7.5,10 " + Filename
- + " > /tmp/dag.tempgraph.ps").c_str())) {
- std::cerr << "Error running dot: 'dot' not in path?\n";
- } else {
- std::cerr << "\n";
- system("gv /tmp/dag.tempgraph.ps");
+namespace llvm {
+ template<>
+ struct DOTGraphTraits<ScheduleDAG*> : public DefaultDOTGraphTraits {
+ static std::string getGraphName(const ScheduleDAG *G) {
+ return DOTGraphTraits<SelectionDAG*>::getGraphName(&G->DAG);
+ }
+
+ static bool renderGraphFromBottomUp() {
+ return true;
+ }
+
+ static bool hasNodeAddressLabel(const SUnit *Node,
+ const ScheduleDAG *Graph) {
+ return true;
+ }
+
+ /// If you want to override the dot attributes printed for a particular
+ /// edge, override this method.
+ template<typename EdgeIter>
+ static std::string getEdgeAttributes(const void *Node, EdgeIter EI) {
+ if (EI.isCtrlDep())
+ return "color=blue,style=dashed";
+ return "";
+ }
+
+
+ static std::string getNodeLabel(const SUnit *Node,
+ const ScheduleDAG *Graph);
+ static std::string getNodeAttributes(const SUnit *N,
+ const ScheduleDAG *Graph) {
+ return "shape=Mrecord";
+ }
+
+ static void addCustomGraphFeatures(ScheduleDAG *G,
+ GraphWriter<ScheduleDAG*> &GW) {
+ GW.emitSimpleNode(0, "plaintext=circle", "GraphRoot");
+ if (G->DAG.getRoot().Val)
+ GW.emitEdge(0, -1, G->SUnitMap[G->DAG.getRoot().Val].front(), -1, "");
+ }
+ };
+}
+
+std::string DOTGraphTraits<ScheduleDAG*>::getNodeLabel(const SUnit *SU,
+ const ScheduleDAG *G) {
+ std::string Op;
+
+ for (unsigned i = 0; i < SU->FlaggedNodes.size(); ++i) {
+ Op += DOTGraphTraits<SelectionDAG*>::getNodeLabel(SU->FlaggedNodes[i],
+ &G->DAG) + "\n";
}
- system(("rm " + Filename + " /tmp/dag.tempgraph.ps").c_str());
+
+ Op += DOTGraphTraits<SelectionDAG*>::getNodeLabel(SU->Node, &G->DAG);
+
+ return Op;
+}
+
+
+/// viewGraph - Pop up a ghostview window with the reachable parts of the DAG
+/// rendered using 'dot'.
+///
+void ScheduleDAG::viewGraph() {
+// This code is only for debugging!
+#ifndef NDEBUG
+ ViewGraph(this, "dag." + DAG.getMachineFunction().getFunction()->getName());
+#else
+ cerr << "ScheduleDAG::viewGraph is only available in debug builds on "
+ << "systems with Graphviz or gv!\n";
+#endif // NDEBUG
}
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