2005-01-10 23:08:40 +00:00
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//===-- SelectionDAGPrinter.cpp - Implement SelectionDAG::viewGraph() -----===//
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2005-04-21 22:36:52 +00:00
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//
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2005-01-10 23:08:40 +00:00
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// The LLVM Compiler Infrastructure
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//
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2007-12-29 20:36:04 +00:00
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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2005-04-21 22:36:52 +00:00
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//
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2005-01-10 23:08:40 +00:00
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//===----------------------------------------------------------------------===//
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//
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// This implements the SelectionDAG::viewGraph method.
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//
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//===----------------------------------------------------------------------===//
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2005-08-26 17:15:30 +00:00
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#include "llvm/Constants.h"
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#include "llvm/Function.h"
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2006-03-05 09:38:03 +00:00
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#include "llvm/Assembly/Writer.h"
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2005-01-10 23:08:40 +00:00
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#include "llvm/CodeGen/SelectionDAG.h"
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2007-08-28 20:32:58 +00:00
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#include "llvm/CodeGen/ScheduleDAG.h"
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2006-09-12 21:00:35 +00:00
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#include "llvm/CodeGen/MachineConstantPool.h"
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2005-01-10 23:08:40 +00:00
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#include "llvm/CodeGen/MachineFunction.h"
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2008-07-03 22:53:42 +00:00
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#include "llvm/CodeGen/MachineModuleInfo.h"
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2008-07-17 21:12:16 +00:00
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#include "llvm/CodeGen/PseudoSourceValue.h"
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2008-02-10 18:45:23 +00:00
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#include "llvm/Target/TargetRegisterInfo.h"
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2005-08-19 21:21:16 +00:00
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#include "llvm/Target/TargetMachine.h"
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2005-01-10 23:08:40 +00:00
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#include "llvm/Support/GraphWriter.h"
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2005-01-11 00:34:33 +00:00
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#include "llvm/ADT/StringExtras.h"
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2005-07-15 22:48:31 +00:00
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#include "llvm/Config/config.h"
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2005-01-10 23:08:40 +00:00
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#include <fstream>
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2006-03-05 09:38:03 +00:00
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#include <sstream>
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2005-01-10 23:08:40 +00:00
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using namespace llvm;
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2005-01-10 23:26:00 +00:00
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namespace llvm {
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template<>
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struct DOTGraphTraits<SelectionDAG*> : public DefaultDOTGraphTraits {
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2008-07-21 21:06:55 +00:00
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static bool hasEdgeDestLabels() {
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return true;
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}
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static unsigned numEdgeDestLabels(const void *Node) {
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return ((const SDNode *) Node)->getNumValues();
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}
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static std::string getEdgeDestLabel(const void *Node, unsigned i) {
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return ((const SDNode *) Node)->getValueType(i).getMVTString();
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}
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/// edgeTargetsEdgeSource - This method returns true if this outgoing edge
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/// should actually target another edge source, not a node. If this method is
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/// implemented, getEdgeTarget should be implemented.
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template<typename EdgeIter>
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static bool edgeTargetsEdgeSource(const void *Node, EdgeIter I) {
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return true;
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}
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/// getEdgeTarget - If edgeTargetsEdgeSource returns true, this method is
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/// called to determine which outgoing edge of Node is the target of this
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/// edge.
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template<typename EdgeIter>
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static EdgeIter getEdgeTarget(const void *Node, EdgeIter I) {
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SDNode *TargetNode = *I;
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SDNodeIterator NI = SDNodeIterator::begin(TargetNode);
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std::advance(NI, I.getNode()->getOperand(I.getOperand()).ResNo);
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return NI;
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}
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2005-01-10 23:26:00 +00:00
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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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2005-01-11 00:34:33 +00:00
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static bool renderGraphFromBottomUp() {
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return true;
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2005-01-10 23:26:00 +00:00
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}
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2005-10-01 00:17:07 +00:00
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static bool hasNodeAddressLabel(const SDNode *Node,
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const SelectionDAG *Graph) {
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return true;
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}
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2006-10-20 18:06:09 +00:00
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/// If you want to override the dot attributes printed for a particular
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/// edge, override this method.
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template<typename EdgeIter>
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static std::string getEdgeAttributes(const void *Node, EdgeIter EI) {
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2008-07-27 21:46:04 +00:00
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SDValue Op = EI.getNode()->getOperand(EI.getOperand());
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2008-06-06 12:08:01 +00:00
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MVT VT = Op.getValueType();
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2006-10-20 18:06:09 +00:00
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if (VT == MVT::Flag)
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return "color=red,style=bold";
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else if (VT == MVT::Other)
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2007-06-18 15:30:16 +00:00
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return "color=blue,style=dashed";
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2006-10-20 18:06:09 +00:00
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return "";
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}
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2005-01-10 23:26:00 +00:00
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2005-01-11 00:34:33 +00:00
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static std::string getNodeLabel(const SDNode *Node,
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const SelectionDAG *Graph);
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2006-10-02 12:26:53 +00:00
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static std::string getNodeAttributes(const SDNode *N,
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const SelectionDAG *Graph) {
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#ifndef NDEBUG
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const std::string &Attrs = Graph->getGraphAttrs(N);
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if (!Attrs.empty()) {
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if (Attrs.find("shape=") == std::string::npos)
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return std::string("shape=Mrecord,") + Attrs;
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else
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return Attrs;
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}
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#endif
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2005-01-10 23:26:00 +00:00
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return "shape=Mrecord";
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}
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2005-01-10 23:52:04 +00:00
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static void addCustomGraphFeatures(SelectionDAG *G,
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GraphWriter<SelectionDAG*> &GW) {
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GW.emitSimpleNode(0, "plaintext=circle", "GraphRoot");
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2006-10-17 19:33:52 +00:00
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if (G->getRoot().Val)
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2008-07-22 17:52:59 +00:00
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GW.emitEdge(0, -1, G->getRoot().Val, G->getRoot().ResNo,
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"color=blue,style=dashed");
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2005-01-10 23:52:04 +00:00
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}
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2005-01-10 23:26:00 +00:00
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};
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}
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2005-01-11 00:34:33 +00:00
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std::string DOTGraphTraits<SelectionDAG*>::getNodeLabel(const SDNode *Node,
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const SelectionDAG *G) {
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2005-08-16 18:31:23 +00:00
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std::string Op = Node->getOperationName(G);
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2005-01-11 22:21:04 +00:00
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2005-01-11 00:34:33 +00:00
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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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2007-08-31 04:03:46 +00:00
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Op += ": " + ftostr(CSDN->getValueAPF());
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2005-04-21 22:36:52 +00:00
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} else if (const GlobalAddressSDNode *GADN =
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2005-01-11 00:34:33 +00:00
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dyn_cast<GlobalAddressSDNode>(Node)) {
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2005-11-30 02:04:11 +00:00
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int offset = GADN->getOffset();
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2005-01-11 00:34:33 +00:00
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Op += ": " + GADN->getGlobal()->getName();
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2005-11-30 02:04:11 +00:00
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if (offset > 0)
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Op += "+" + itostr(offset);
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else
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Op += itostr(offset);
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2005-04-22 04:01:18 +00:00
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} else if (const FrameIndexSDNode *FIDN = dyn_cast<FrameIndexSDNode>(Node)) {
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2005-01-11 00:34:33 +00:00
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Op += " " + itostr(FIDN->getIndex());
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2006-11-01 04:48:30 +00:00
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} else if (const JumpTableSDNode *JTDN = dyn_cast<JumpTableSDNode>(Node)) {
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Op += " " + itostr(JTDN->getIndex());
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2005-01-11 00:34:33 +00:00
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} else if (const ConstantPoolSDNode *CP = dyn_cast<ConstantPoolSDNode>(Node)){
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2006-09-12 21:00:35 +00:00
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if (CP->isMachineConstantPoolEntry()) {
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2006-03-05 09:38:03 +00:00
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std::ostringstream SS;
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2006-09-12 21:00:35 +00:00
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CP->getMachineCPVal()->print(SS);
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2006-03-05 09:38:03 +00:00
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Op += "<" + SS.str() + ">";
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2006-09-12 21:00:35 +00:00
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} else {
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if (ConstantFP *CFP = dyn_cast<ConstantFP>(CP->getConstVal()))
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2007-08-31 04:03:46 +00:00
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Op += "<" + ftostr(CFP->getValueAPF()) + ">";
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2006-09-12 21:00:35 +00:00
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else if (ConstantInt *CI = dyn_cast<ConstantInt>(CP->getConstVal()))
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Op += "<" + utostr(CI->getZExtValue()) + ">";
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else {
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std::ostringstream SS;
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WriteAsOperand(SS, CP->getConstVal(), false);
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Op += "<" + SS.str() + ">";
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}
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2006-03-05 09:38:03 +00:00
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}
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2005-04-22 04:01:18 +00:00
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} else if (const BasicBlockSDNode *BBDN = dyn_cast<BasicBlockSDNode>(Node)) {
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2005-01-11 00:34:33 +00:00
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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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2005-08-16 21:55:35 +00:00
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} else if (const RegisterSDNode *R = dyn_cast<RegisterSDNode>(Node)) {
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2006-10-20 18:06:09 +00:00
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if (G && R->getReg() != 0 &&
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2008-02-10 18:45:23 +00:00
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TargetRegisterInfo::isPhysicalRegister(R->getReg())) {
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2008-02-26 21:11:01 +00:00
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Op = Op + " " +
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2008-02-27 06:33:05 +00:00
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G->getTarget().getRegisterInfo()->getName(R->getReg());
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2005-08-19 21:21:16 +00:00
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} else {
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Op += " #" + utostr(R->getReg());
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}
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2008-06-30 20:59:49 +00:00
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} else if (const DbgStopPointSDNode *D = dyn_cast<DbgStopPointSDNode>(Node)) {
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Op += ": " + D->getCompileUnit()->getFileName();
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Op += ":" + utostr(D->getLine());
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if (D->getColumn() != 0)
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Op += ":" + utostr(D->getColumn());
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2008-07-01 00:05:16 +00:00
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} else if (const LabelSDNode *L = dyn_cast<LabelSDNode>(Node)) {
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Op += ": LabelID=" + utostr(L->getLabelID());
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2005-01-11 00:34:33 +00:00
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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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2005-05-09 04:08:27 +00:00
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} else if (const SrcValueSDNode *M = dyn_cast<SrcValueSDNode>(Node)) {
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if (M->getValue())
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2008-02-06 22:27:42 +00:00
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Op += "<" + M->getValue()->getName() + ">";
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2005-05-09 04:08:27 +00:00
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else
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2008-02-06 22:27:42 +00:00
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Op += "<null>";
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} else if (const MemOperandSDNode *M = dyn_cast<MemOperandSDNode>(Node)) {
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2008-07-17 21:12:16 +00:00
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const Value *V = M->MO.getValue();
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Op += '<';
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if (!V) {
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Op += "(unknown)";
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2008-07-18 21:07:41 +00:00
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} else if (isa<PseudoSourceValue>(V)) {
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2008-07-17 21:12:16 +00:00
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// PseudoSourceValues don't have names, so use their print method.
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2008-07-14 17:51:24 +00:00
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std::ostringstream SS;
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M->MO.getValue()->print(SS);
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2008-07-17 21:12:16 +00:00
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Op += SS.str();
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2008-07-14 17:51:24 +00:00
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} else {
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2008-07-17 21:12:16 +00:00
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Op += V->getName();
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2008-07-14 17:51:24 +00:00
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}
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2008-07-17 21:12:16 +00:00
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Op += '+' + itostr(M->MO.getOffset()) + '>';
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2008-03-21 09:14:45 +00:00
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} else if (const ARG_FLAGSSDNode *N = dyn_cast<ARG_FLAGSSDNode>(Node)) {
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Op = Op + " AF=" + N->getArgFlags().getArgFlagsString();
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2005-08-18 03:31:02 +00:00
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} else if (const VTSDNode *N = dyn_cast<VTSDNode>(Node)) {
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2008-06-06 12:08:01 +00:00
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Op = Op + " VT=" + N->getVT().getMVTString();
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2006-10-10 20:11:26 +00:00
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} else if (const LoadSDNode *LD = dyn_cast<LoadSDNode>(Node)) {
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bool doExt = true;
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switch (LD->getExtensionType()) {
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default: doExt = false; break;
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case ISD::EXTLOAD:
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Op = Op + "<anyext ";
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break;
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case ISD::SEXTLOAD:
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Op = Op + " <sext ";
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break;
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case ISD::ZEXTLOAD:
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Op = Op + " <zext ";
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break;
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}
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if (doExt)
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2008-06-06 12:08:01 +00:00
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Op += LD->getMemoryVT().getMVTString() + ">";
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2008-01-25 06:40:45 +00:00
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if (LD->isVolatile())
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Op += "<V>";
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2006-11-09 18:44:21 +00:00
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Op += LD->getIndexedModeName(LD->getAddressingMode());
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2008-01-25 06:40:45 +00:00
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if (LD->getAlignment() > 1)
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Op += " A=" + utostr(LD->getAlignment());
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2006-10-17 21:18:26 +00:00
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} else if (const StoreSDNode *ST = dyn_cast<StoreSDNode>(Node)) {
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if (ST->isTruncatingStore())
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2008-06-06 12:08:01 +00:00
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Op += "<trunc " + ST->getMemoryVT().getMVTString() + ">";
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2008-01-25 06:40:45 +00:00
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if (ST->isVolatile())
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Op += "<V>";
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2006-11-09 18:44:21 +00:00
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Op += ST->getIndexedModeName(ST->getAddressingMode());
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2008-01-25 06:40:45 +00:00
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if (ST->getAlignment() > 1)
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Op += " A=" + utostr(ST->getAlignment());
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2005-01-11 00:34:33 +00:00
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}
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2007-10-15 05:32:43 +00:00
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#if 0
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Op += " Id=" + itostr(Node->getNodeId());
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#endif
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2005-11-29 06:21:05 +00:00
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2005-01-11 00:34:33 +00:00
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return Op;
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}
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2005-04-21 22:36:52 +00:00
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2005-01-11 00:34:33 +00:00
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2005-01-10 23:08:40 +00:00
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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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2008-07-21 20:00:07 +00:00
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void SelectionDAG::viewGraph(const std::string &Title) {
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2005-07-14 05:17:43 +00:00
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// This code is only for debugging!
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2005-07-14 05:33:13 +00:00
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#ifndef NDEBUG
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2008-07-21 20:00:07 +00:00
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ViewGraph(this, "dag." + getMachineFunction().getFunction()->getName(),
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Title);
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2006-06-27 16:49:46 +00:00
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#else
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2006-12-07 20:04:42 +00:00
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cerr << "SelectionDAG::viewGraph is only available in debug builds on "
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<< "systems with Graphviz or gv!\n";
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2006-06-27 16:49:46 +00:00
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#endif // NDEBUG
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2005-01-10 23:08:40 +00:00
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}
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2006-10-02 12:26:53 +00:00
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2008-07-30 18:48:53 +00:00
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// This overload is defined out-of-line here instead of just using a
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// default parameter because this is easiest for gdb to call.
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void SelectionDAG::viewGraph() {
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viewGraph("");
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}
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2006-10-02 12:26:53 +00:00
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/// clearGraphAttrs - Clear all previously defined node graph attributes.
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/// Intended to be used from a debugging tool (eg. gdb).
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void SelectionDAG::clearGraphAttrs() {
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#ifndef NDEBUG
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NodeGraphAttrs.clear();
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#else
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2006-12-07 20:04:42 +00:00
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cerr << "SelectionDAG::clearGraphAttrs is only available in debug builds"
|
|
|
|
<< " on systems with Graphviz or gv!\n";
|
2006-10-02 12:26:53 +00:00
|
|
|
#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
|
2006-12-07 20:04:42 +00:00
|
|
|
cerr << "SelectionDAG::setGraphAttrs is only available in debug builds"
|
|
|
|
<< " on systems with Graphviz or gv!\n";
|
2006-10-02 12:26:53 +00:00
|
|
|
#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
|
2006-12-07 20:04:42 +00:00
|
|
|
cerr << "SelectionDAG::getGraphAttrs is only available in debug builds"
|
|
|
|
<< " on systems with Graphviz or gv!\n";
|
2006-10-02 12:26:53 +00:00
|
|
|
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
|
2006-12-07 20:04:42 +00:00
|
|
|
cerr << "SelectionDAG::setGraphColor is only available in debug builds"
|
|
|
|
<< " on systems with Graphviz or gv!\n";
|
2006-10-02 12:26:53 +00:00
|
|
|
#endif
|
|
|
|
}
|
|
|
|
|
2007-08-28 20:32:58 +00:00
|
|
|
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) {
|
2008-04-14 23:15:07 +00:00
|
|
|
if (EI.isSpecialDep())
|
|
|
|
return "color=cyan,style=dashed";
|
2007-09-19 01:38:40 +00:00
|
|
|
if (EI.isCtrlDep())
|
2007-08-28 20:32:58 +00:00
|
|
|
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");
|
2008-06-21 19:18:17 +00:00
|
|
|
const SDNode *N = G->DAG.getRoot().Val;
|
|
|
|
if (N && N->getNodeId() != -1)
|
2008-07-27 22:46:49 +00:00
|
|
|
GW.emitEdge(0, -1, &G->SUnits[N->getNodeId()], -1,
|
|
|
|
"color=blue,style=dashed");
|
2007-08-28 20:32:58 +00:00
|
|
|
}
|
|
|
|
};
|
|
|
|
}
|
|
|
|
|
|
|
|
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";
|
|
|
|
}
|
|
|
|
|
2008-03-21 22:51:06 +00:00
|
|
|
if (SU->Node)
|
|
|
|
Op += DOTGraphTraits<SelectionDAG*>::getNodeLabel(SU->Node, &G->DAG);
|
|
|
|
else
|
|
|
|
Op += "<CROSS RC COPY>";
|
2007-08-28 20:32:58 +00:00
|
|
|
|
|
|
|
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
|
2008-07-21 20:00:07 +00:00
|
|
|
ViewGraph(this, "dag." + MF->getFunction()->getName(),
|
|
|
|
"Scheduling-Units Graph for " + MF->getFunction()->getName() + ':' +
|
|
|
|
BB->getBasicBlock()->getName());
|
2007-08-28 20:32:58 +00:00
|
|
|
#else
|
|
|
|
cerr << "ScheduleDAG::viewGraph is only available in debug builds on "
|
|
|
|
<< "systems with Graphviz or gv!\n";
|
|
|
|
#endif // NDEBUG
|
|
|
|
}
|