//===----------------------------------------------------------------------===//
#include "SchedGraph.h"
-#include "llvm/CodeGen/SchedGraphCommon.h"
-#include <iostream>
-
-#include "llvm/Target/TargetMachine.h"
-#include "llvm/Target/TargetInstrInfo.h"
-#include "Support/STLExtras.h"
-#include "llvm/BasicBlock.h"
-#include "llvm/CodeGen/MachineCodeForInstruction.h"
-#include "llvm/Target/TargetRegInfo.h"
#include "llvm/Function.h"
-#include "llvm/CodeGen/MachineFunction.h"
-#include "llvm/CodeGen/InstrSelection.h"
#include "llvm/iOther.h"
-#include "Support/StringExtras.h"
-
+#include "llvm/CodeGen/MachineCodeForInstruction.h"
+#include "llvm/CodeGen/MachineFunction.h"
+#include "llvm/Target/TargetInstrInfo.h"
+#include "llvm/Target/TargetMachine.h"
+#include "llvm/Target/TargetRegInfo.h"
+#include "Support/STLExtras.h"
//*********************** Internal Data Structures *************************/
// class SchedGraphNode
//
-/*ctor*/
-SchedGraphNode::SchedGraphNode(unsigned NID,
- MachineBasicBlock *mbb,
- int indexInBB,
- const TargetMachine& Target)
- : SchedGraphNodeCommon(NID), origIndexInBB(indexInBB), MBB(mbb), MI(mbb ? (*mbb)[indexInBB] : 0)
- {
- if (MI)
- {
- MachineOpCode mopCode = MI->getOpCode();
- latency = Target.getInstrInfo().hasResultInterlock(mopCode)
- ? Target.getInstrInfo().minLatency(mopCode)
- : Target.getInstrInfo().maxLatency(mopCode);
- }
+SchedGraphNode::SchedGraphNode(unsigned NID, MachineBasicBlock *mbb,
+ int indexInBB, const TargetMachine& Target)
+ : SchedGraphNodeCommon(NID), origIndexInBB(indexInBB), MBB(mbb),
+ MI(mbb ? (*mbb)[indexInBB] : 0) {
+ if (MI) {
+ MachineOpCode mopCode = MI->getOpCode();
+ latency = Target.getInstrInfo().hasResultInterlock(mopCode)
+ ? Target.getInstrInfo().minLatency(mopCode)
+ : Target.getInstrInfo().maxLatency(mopCode);
+ }
}
-
-/*dtor*/
-SchedGraphNode::~SchedGraphNode()
-{
+SchedGraphNode::~SchedGraphNode() {
// for each node, delete its out-edges
std::for_each(beginOutEdges(), endOutEdges(),
deleter<SchedGraphEdge>);
//
// class SchedGraph
//
-
-
-/*ctor*/
SchedGraph::SchedGraph(MachineBasicBlock &mbb, const TargetMachine& target)
: MBB(mbb) {
buildGraph(target);
}
-
-/*dtor*/
-SchedGraph::~SchedGraph()
-{
+SchedGraph::~SchedGraph() {
for (const_iterator I = begin(); I != end(); ++I)
delete I->second;
delete graphRoot;
delete graphLeaf;
}
-
-void
-SchedGraph::dump() const
-{
+void SchedGraph::dump() const {
std::cerr << " Sched Graph for Basic Block: ";
std::cerr << MBB.getBasicBlock()->getName()
<< " (" << MBB.getBasicBlock() << ")";
-void
-SchedGraph::addDummyEdges()
-{
+void SchedGraph::addDummyEdges() {
assert(graphRoot->outEdges.size() == 0);
- for (const_iterator I=begin(); I != end(); ++I)
- {
+ for (const_iterator I=begin(); I != end(); ++I) {
SchedGraphNode* node = (*I).second;
assert(node != graphRoot && node != graphLeaf);
if (node->beginInEdges() == node->endInEdges())
}
-void
-SchedGraph::addCDEdges(const TerminatorInst* term,
- const TargetMachine& target)
-{
+void SchedGraph::addCDEdges(const TerminatorInst* term,
+ const TargetMachine& target) {
const TargetInstrInfo& mii = target.getInstrInfo();
MachineCodeForInstruction &termMvec = MachineCodeForInstruction::get(term);
"No branch instructions for terminator? Ok, but weird!");
if (first == termMvec.size())
return;
-
+
SchedGraphNode* firstBrNode = getGraphNodeForInstr(termMvec[first]);
-
+
// Add CD edges from each instruction in the sequence to the
// *last preceding* branch instr. in the sequence
// Use a latency of 0 because we only need to prevent out-of-order issue.
//
- for (unsigned i = termMvec.size(); i > first+1; --i)
- {
+ for (unsigned i = termMvec.size(); i > first+1; --i) {
SchedGraphNode* toNode = getGraphNodeForInstr(termMvec[i-1]);
assert(toNode && "No node for instr generated for branch/ret?");
-
+
for (unsigned j = i-1; j != 0; --j)
if (mii.isBranch(termMvec[j-1]->getOpCode()) ||
- mii.isReturn(termMvec[j-1]->getOpCode()))
- {
+ mii.isReturn(termMvec[j-1]->getOpCode())) {
SchedGraphNode* brNode = getGraphNodeForInstr(termMvec[j-1]);
assert(brNode && "No node for instr generated for branch/ret?");
(void) new SchedGraphEdge(brNode, toNode, SchedGraphEdge::CtrlDep,
// Add CD edges from each instruction preceding the first branch
// to the first branch. Use a latency of 0 as above.
//
- for (unsigned i = first; i != 0; --i)
- {
+ for (unsigned i = first; i != 0; --i) {
SchedGraphNode* fromNode = getGraphNodeForInstr(termMvec[i-1]);
assert(fromNode && "No node for instr generated for branch?");
(void) new SchedGraphEdge(fromNode, firstBrNode, SchedGraphEdge::CtrlDep,
// Now add CD edges to the first branch instruction in the sequence from
// all preceding instructions in the basic block. Use 0 latency again.
//
- for (unsigned i=0, N=MBB.size(); i < N; i++)
- {
+ for (unsigned i=0, N=MBB.size(); i < N; i++) {
if (MBB[i] == termMvec[first]) // reached the first branch
break;
-
+
SchedGraphNode* fromNode = this->getGraphNodeForInstr(MBB[i]);
if (fromNode == NULL)
continue; // dummy instruction, e.g., PHI
-
+
(void) new SchedGraphEdge(fromNode, firstBrNode,
SchedGraphEdge::CtrlDep,
SchedGraphEdge::NonDataDep, 0);
unsigned d = mii.getNumDelaySlots(MBB[i]->getOpCode());
assert(i+d < N && "Insufficient delay slots for instruction?");
- for (unsigned j=1; j <= d; j++)
- {
+ for (unsigned j=1; j <= d; j++) {
SchedGraphNode* toNode = this->getGraphNodeForInstr(MBB[i+j]);
assert(toNode && "No node for machine instr in delay slot?");
(void) new SchedGraphEdge(fromNode, toNode,
static const unsigned int SG_DepOrderArray[][3] = {
{ SchedGraphEdge::NonDataDep,
- SchedGraphEdge::AntiDep,
- SchedGraphEdge::AntiDep },
+ SchedGraphEdge::AntiDep,
+ SchedGraphEdge::AntiDep },
{ SchedGraphEdge::TrueDep,
- SchedGraphEdge::OutputDep,
- SchedGraphEdge::TrueDep | SchedGraphEdge::OutputDep },
+ SchedGraphEdge::OutputDep,
+ SchedGraphEdge::TrueDep | SchedGraphEdge::OutputDep },
{ SchedGraphEdge::TrueDep,
- SchedGraphEdge::AntiDep | SchedGraphEdge::OutputDep,
- SchedGraphEdge::TrueDep | SchedGraphEdge::AntiDep
- | SchedGraphEdge::OutputDep }
+ SchedGraphEdge::AntiDep | SchedGraphEdge::OutputDep,
+ SchedGraphEdge::TrueDep | SchedGraphEdge::AntiDep
+ | SchedGraphEdge::OutputDep }
};
// Use latency 1 just to ensure that memory operations are ordered;
// latency does not otherwise matter (true dependences enforce that).
//
-void
-SchedGraph::addMemEdges(const std::vector<SchedGraphNode*>& memNodeVec,
- const TargetMachine& target)
-{
+void SchedGraph::addMemEdges(const std::vector<SchedGraphNode*>& memNodeVec,
+ const TargetMachine& target) {
const TargetInstrInfo& mii = target.getInstrInfo();
// Instructions in memNodeVec are in execution order within the basic block,
// so simply look at all pairs <memNodeVec[i], memNodeVec[j: j > i]>.
//
- for (unsigned im=0, NM=memNodeVec.size(); im < NM; im++)
- {
+ for (unsigned im=0, NM=memNodeVec.size(); im < NM; im++) {
MachineOpCode fromOpCode = memNodeVec[im]->getOpCode();
int fromType = (mii.isCall(fromOpCode)? SG_CALL_REF
: (mii.isLoad(fromOpCode)? SG_LOAD_REF
: SG_STORE_REF));
- for (unsigned jm=im+1; jm < NM; jm++)
- {
+ for (unsigned jm=im+1; jm < NM; jm++) {
MachineOpCode toOpCode = memNodeVec[jm]->getOpCode();
int toType = (mii.isCall(toOpCode)? SG_CALL_REF
: (mii.isLoad(toOpCode)? SG_LOAD_REF
: SG_STORE_REF));
-
+
if (fromType != SG_LOAD_REF || toType != SG_LOAD_REF)
(void) new SchedGraphEdge(memNodeVec[im], memNodeVec[jm],
SchedGraphEdge::MemoryDep,
// Use a latency of 0 because we only need to prevent out-of-order issue,
// like with control dependences.
//
-void
-SchedGraph::addCallDepEdges(const std::vector<SchedGraphNode*>& callDepNodeVec,
- const TargetMachine& target)
-{
+void SchedGraph::addCallDepEdges(const std::vector<SchedGraphNode*>& callDepNodeVec,
+ const TargetMachine& target) {
const TargetInstrInfo& mii = target.getInstrInfo();
// Instructions in memNodeVec are in execution order within the basic block,
// so simply look at all pairs <memNodeVec[i], memNodeVec[j: j > i]>.
//
for (unsigned ic=0, NC=callDepNodeVec.size(); ic < NC; ic++)
- if (mii.isCall(callDepNodeVec[ic]->getOpCode()))
- {
- // Add SG_CALL_REF edges from all preds to this instruction.
- for (unsigned jc=0; jc < ic; jc++)
- (void) new SchedGraphEdge(callDepNodeVec[jc], callDepNodeVec[ic],
- SchedGraphEdge::MachineRegister,
- MachineIntRegsRID, 0);
-
- // And do the same from this instruction to all successors.
- for (unsigned jc=ic+1; jc < NC; jc++)
- (void) new SchedGraphEdge(callDepNodeVec[ic], callDepNodeVec[jc],
- SchedGraphEdge::MachineRegister,
- MachineIntRegsRID, 0);
- }
+ if (mii.isCall(callDepNodeVec[ic]->getOpCode())) {
+ // Add SG_CALL_REF edges from all preds to this instruction.
+ for (unsigned jc=0; jc < ic; jc++)
+ (void) new SchedGraphEdge(callDepNodeVec[jc], callDepNodeVec[ic],
+ SchedGraphEdge::MachineRegister,
+ MachineIntRegsRID, 0);
+
+ // And do the same from this instruction to all successors.
+ for (unsigned jc=ic+1; jc < NC; jc++)
+ (void) new SchedGraphEdge(callDepNodeVec[ic], callDepNodeVec[jc],
+ SchedGraphEdge::MachineRegister,
+ MachineIntRegsRID, 0);
+ }
#ifdef CALL_DEP_NODE_VEC_CANNOT_WORK
// Find the call instruction nodes and put them in a vector.
//
int lastCallNodeIdx = -1;
for (unsigned i=0, N=bbMvec.size(); i < N; i++)
- if (mii.isCall(bbMvec[i]->getOpCode()))
- {
+ if (mii.isCall(bbMvec[i]->getOpCode())) {
++lastCallNodeIdx;
for ( ; lastCallNodeIdx < (int)callNodeVec.size(); ++lastCallNodeIdx)
if (callNodeVec[lastCallNodeIdx]->getMachineInstr() == bbMvec[i])
break;
assert(lastCallNodeIdx < (int)callNodeVec.size() && "Missed Call?");
}
- else if (mii.isCCInstr(bbMvec[i]->getOpCode()))
- {
+ else if (mii.isCCInstr(bbMvec[i]->getOpCode())) {
// Add incoming/outgoing edges from/to preceding/later calls
SchedGraphNode* ccNode = this->getGraphNodeForInstr(bbMvec[i]);
int j=0;
}
-void
-SchedGraph::addMachineRegEdges(RegToRefVecMap& regToRefVecMap,
- const TargetMachine& target)
-{
+void SchedGraph::addMachineRegEdges(RegToRefVecMap& regToRefVecMap,
+ const TargetMachine& target) {
// This code assumes that two registers with different numbers are
// not aliased!
//
for (RegToRefVecMap::iterator I = regToRefVecMap.begin();
- I != regToRefVecMap.end(); ++I)
- {
+ I != regToRefVecMap.end(); ++I) {
int regNum = (*I).first;
RefVec& regRefVec = (*I).second;
-
+
// regRefVec is ordered by control flow order in the basic block
for (unsigned i=0; i < regRefVec.size(); ++i) {
SchedGraphNode* node = regRefVec[i].first;
new SchedGraphEdge(prevNode, node, regNum,
SchedGraphEdge::AntiDep);
}
-
+
if (prevIsDef)
if (!isDef || isDefAndUse)
new SchedGraphEdge(prevNode, node, regNum,
// in the basic block. refNode may be a use, a def, or both.
// We do not consider other uses because we are not building use-use deps.
//
-void
-SchedGraph::addEdgesForValue(SchedGraphNode* refNode,
- const RefVec& defVec,
- const Value* defValue,
- bool refNodeIsDef,
- bool refNodeIsDefAndUse,
- const TargetMachine& target)
-{
+void SchedGraph::addEdgesForValue(SchedGraphNode* refNode,
+ const RefVec& defVec,
+ const Value* defValue,
+ bool refNodeIsDef,
+ bool refNodeIsDefAndUse,
+ const TargetMachine& target) {
bool refNodeIsUse = !refNodeIsDef || refNodeIsDefAndUse;
// Add true or output dep edges from all def nodes before refNode in BB.
// Add anti or output dep edges to all def nodes after refNode.
- for (RefVec::const_iterator I=defVec.begin(), E=defVec.end(); I != E; ++I)
- {
+ for (RefVec::const_iterator I=defVec.begin(), E=defVec.end(); I != E; ++I) {
if ((*I).first == refNode)
continue; // Dont add any self-loops
-
+
if ((*I).first->getOrigIndexInBB() < refNode->getOrigIndexInBB()) {
// (*).first is before refNode
if (refNodeIsDef)
}
-void
-SchedGraph::addEdgesForInstruction(const MachineInstr& MI,
- const ValueToDefVecMap& valueToDefVecMap,
- const TargetMachine& target)
-{
+void SchedGraph::addEdgesForInstruction(const MachineInstr& MI,
+ const ValueToDefVecMap& valueToDefVecMap,
+ const TargetMachine& target) {
SchedGraphNode* node = getGraphNodeForInstr(&MI);
if (node == NULL)
return;
// Add edges for all operands of the machine instruction.
//
- for (unsigned i = 0, numOps = MI.getNumOperands(); i != numOps; ++i)
- {
- switch (MI.getOperand(i).getType())
- {
+ for (unsigned i = 0, numOps = MI.getNumOperands(); i != numOps; ++i) {
+ switch (MI.getOperand(i).getType()) {
case MachineOperand::MO_VirtualRegister:
case MachineOperand::MO_CCRegister:
- if (const Value* srcI = MI.getOperand(i).getVRegValue())
- {
+ if (const Value* srcI = MI.getOperand(i).getVRegValue()) {
ValueToDefVecMap::const_iterator I = valueToDefVecMap.find(srcI);
if (I != valueToDefVecMap.end())
addEdgesForValue(node, I->second, srcI,
MI.getOperand(i).opIsDefAndUse(), target);
}
break;
-
+
case MachineOperand::MO_MachineRegister:
break;
-
+
case MachineOperand::MO_SignExtendedImmed:
case MachineOperand::MO_UnextendedImmed:
case MachineOperand::MO_PCRelativeDisp:
break; // nothing to do for immediate fields
-
+
default:
assert(0 && "Unknown machine operand type in SchedGraph builder");
break;
//
for (unsigned i=0, N=MI.getNumImplicitRefs(); i < N; ++i)
if (MI.getImplicitOp(i).opIsUse() || MI.getImplicitOp(i).opIsDefAndUse())
- if (const Value* srcI = MI.getImplicitRef(i))
- {
+ if (const Value* srcI = MI.getImplicitRef(i)) {
ValueToDefVecMap::const_iterator I = valueToDefVecMap.find(srcI);
if (I != valueToDefVecMap.end())
addEdgesForValue(node, I->second, srcI,
}
-void
-SchedGraph::findDefUseInfoAtInstr(const TargetMachine& target,
- SchedGraphNode* node,
- std::vector<SchedGraphNode*>& memNodeVec,
- std::vector<SchedGraphNode*>& callDepNodeVec,
- RegToRefVecMap& regToRefVecMap,
- ValueToDefVecMap& valueToDefVecMap)
-{
+void SchedGraph::findDefUseInfoAtInstr(const TargetMachine& target,
+ SchedGraphNode* node,
+ std::vector<SchedGraphNode*>& memNodeVec,
+ std::vector<SchedGraphNode*>& callDepNodeVec,
+ RegToRefVecMap& regToRefVecMap,
+ ValueToDefVecMap& valueToDefVecMap) {
const TargetInstrInfo& mii = target.getInstrInfo();
MachineOpCode opCode = node->getOpCode();
-
+
if (mii.isCall(opCode) || mii.isCCInstr(opCode))
callDepNodeVec.push_back(node);
-
+
if (mii.isLoad(opCode) || mii.isStore(opCode) || mii.isCall(opCode))
memNodeVec.push_back(node);
// Collect the register references and value defs. for explicit operands
//
const MachineInstr& MI = *node->getMachineInstr();
- for (int i=0, numOps = (int) MI.getNumOperands(); i < numOps; i++)
- {
+ for (int i=0, numOps = (int) MI.getNumOperands(); i < numOps; i++) {
const MachineOperand& mop = MI.getOperand(i);
-
+
// if this references a register other than the hardwired
// "zero" register, record the reference.
- if (mop.hasAllocatedReg())
- {
+ if (mop.hasAllocatedReg()) {
int regNum = mop.getAllocatedRegNum();
-
+
// If this is not a dummy zero register, record the reference in order
if (regNum != target.getRegInfo().getZeroRegNum())
regToRefVecMap[mop.getAllocatedRegNum()]
mop.getType() == MachineOperand::MO_CCRegister)
&& "Do not expect any other kind of operand to be defined!");
assert(mop.getVRegValue() != NULL && "Null value being defined?");
-
+
valueToDefVecMap[mop.getVRegValue()].push_back(std::make_pair(node, i));
}
// Collect value defs. for implicit operands. They may have allocated
// physical registers also.
//
- for (unsigned i=0, N = MI.getNumImplicitRefs(); i != N; ++i)
- {
+ for (unsigned i=0, N = MI.getNumImplicitRefs(); i != N; ++i) {
const MachineOperand& mop = MI.getImplicitOp(i);
- if (mop.hasAllocatedReg())
- {
+ if (mop.hasAllocatedReg()) {
int regNum = mop.getAllocatedRegNum();
if (regNum != target.getRegInfo().getZeroRegNum())
regToRefVecMap[mop.getAllocatedRegNum()]
}
-void
-SchedGraph::buildNodesForBB(const TargetMachine& target,
- MachineBasicBlock& MBB,
- std::vector<SchedGraphNode*>& memNodeVec,
- std::vector<SchedGraphNode*>& callDepNodeVec,
- RegToRefVecMap& regToRefVecMap,
- ValueToDefVecMap& valueToDefVecMap)
-{
+void SchedGraph::buildNodesForBB(const TargetMachine& target,
+ MachineBasicBlock& MBB,
+ std::vector<SchedGraphNode*>& memNodeVec,
+ std::vector<SchedGraphNode*>& callDepNodeVec,
+ RegToRefVecMap& regToRefVecMap,
+ ValueToDefVecMap& valueToDefVecMap) {
const TargetInstrInfo& mii = target.getInstrInfo();
// Build graph nodes for each VM instruction and gather def/use info.
}
-void
-SchedGraph::buildGraph(const TargetMachine& target)
-{
+void SchedGraph::buildGraph(const TargetMachine& target) {
// Use this data structure to note all machine operands that compute
// ordinary LLVM values. These must be computed defs (i.e., instructions).
// Note that there may be multiple machine instructions that define
//
// class SchedGraphSet
//
-
-/*ctor*/
SchedGraphSet::SchedGraphSet(const Function* _function,
const TargetMachine& target) :
- function(_function)
-{
+ function(_function) {
buildGraphsForMethod(function, target);
}
-
-/*dtor*/
-SchedGraphSet::~SchedGraphSet()
-{
+SchedGraphSet::~SchedGraphSet() {
// delete all the graphs
for(iterator I = begin(), E = end(); I != E; ++I)
delete *I; // destructor is a friend
}
-void
-SchedGraphSet::dump() const
-{
+void SchedGraphSet::dump() const {
std::cerr << "======== Sched graphs for function `" << function->getName()
<< "' ========\n\n";
}
-void
-SchedGraphSet::buildGraphsForMethod(const Function *F,
- const TargetMachine& target)
-{
+void SchedGraphSet::buildGraphsForMethod(const Function *F,
+ const TargetMachine& target) {
MachineFunction &MF = MachineFunction::get(F);
for (MachineFunction::iterator I = MF.begin(), E = MF.end(); I != E; ++I)
addGraph(new SchedGraph(*I, target));
}
-std::ostream &operator<<(std::ostream &os, const SchedGraphEdge& edge)
-{
- os << "edge [" << edge.src->getNodeId() << "] -> ["
- << edge.sink->getNodeId() << "] : ";
-
- switch(edge.depType) {
- case SchedGraphEdge::CtrlDep: os<< "Control Dep"; break;
- case SchedGraphEdge::ValueDep: os<< "Reg Value " << edge.val; break;
- case SchedGraphEdge::MemoryDep: os<< "Memory Dep"; break;
- case SchedGraphEdge::MachineRegister: os<< "Reg " <<edge.machineRegNum;break;
- case SchedGraphEdge::MachineResource: os<<"Resource "<<edge.resourceId;break;
- default: assert(0); break;
+void SchedGraphEdge::print(std::ostream &os) const {
+ os << "edge [" << src->getNodeId() << "] -> ["
+ << sink->getNodeId() << "] : ";
+
+ switch(depType) {
+ case SchedGraphEdge::CtrlDep:
+ os<< "Control Dep";
+ break;
+ case SchedGraphEdge::ValueDep:
+ os<< "Reg Value " << val;
+ break;
+ case SchedGraphEdge::MemoryDep:
+ os<< "Memory Dep";
+ break;
+ case SchedGraphEdge::MachineRegister:
+ os<< "Reg " << machineRegNum;
+ break;
+ case SchedGraphEdge::MachineResource:
+ os<<"Resource "<< resourceId;
+ break;
+ default:
+ assert(0);
+ break;
}
- os << " : delay = " << edge.minDelay << "\n";
-
- return os;
+ os << " : delay = " << minDelay << "\n";
}
-std::ostream &operator<<(std::ostream &os, const SchedGraphNode& node)
-{
+void SchedGraphNode::print(std::ostream &os) const {
os << std::string(8, ' ')
- << "Node " << node.ID << " : "
- << "latency = " << node.latency << "\n" << std::string(12, ' ');
+ << "Node " << ID << " : "
+ << "latency = " << latency << "\n" << std::string(12, ' ');
- if (node.getMachineInstr() == NULL)
+ if (getMachineInstr() == NULL)
os << "(Dummy node)\n";
else {
- os << *node.getMachineInstr() << "\n" << std::string(12, ' ');
- os << node.inEdges.size() << " Incoming Edges:\n";
- for (unsigned i=0, N=node.inEdges.size(); i < N; i++)
- os << std::string(16, ' ') << *node.inEdges[i];
+ os << *getMachineInstr() << "\n" << std::string(12, ' ');
+ os << inEdges.size() << " Incoming Edges:\n";
+ for (unsigned i=0, N = inEdges.size(); i < N; i++)
+ os << std::string(16, ' ') << *inEdges[i];
- os << std::string(12, ' ') << node.outEdges.size()
+ os << std::string(12, ' ') << outEdges.size()
<< " Outgoing Edges:\n";
- for (unsigned i=0, N=node.outEdges.size(); i < N; i++)
- os << std::string(16, ' ') << *node.outEdges[i];
+ for (unsigned i=0, N= outEdges.size(); i < N; i++)
+ os << std::string(16, ' ') << *outEdges[i];
}
-
- return os;
}
#ifndef LLVM_CODEGEN_SCHEDGRAPH_H
#define LLVM_CODEGEN_SCHEDGRAPH_H
+#include "llvm/CodeGen/SchedGraphCommon.h"
#include "llvm/CodeGen/MachineInstr.h"
-#include "Support/GraphTraits.h"
-#include "Support/hash_map"
#include "llvm/Transforms/Scalar.h"
-#include "llvm/CodeGen/SchedGraphCommon.h"
+#include "Support/hash_map"
+#include "Support/GraphTraits.h"
+
class RegToRefVecMap;
class ValueToDefVecMap;
const MachineInstr *MI;
- SchedGraphNode (unsigned nodeId, MachineBasicBlock *mbb,
- int indexInBB, const TargetMachine& Target);
- ~SchedGraphNode ();
+ SchedGraphNode(unsigned nodeId, MachineBasicBlock *mbb, int indexInBB,
+ const TargetMachine& Target);
+ ~SchedGraphNode();
friend class SchedGraph; // give access for ctor and dtor
friend class SchedGraphEdge; // give access for adding edges
public:
+
// Accessor methods
- const MachineInstr* getMachineInstr () const { return MI; }
- const MachineOpCode getOpCode () const { return MI->getOpCode(); }
- bool isDummyNode () const { return (MI == NULL); }
- MachineBasicBlock &getMachineBasicBlock() const { return *MBB; }
+ const MachineInstr* getMachineInstr() const { return MI; }
+ const MachineOpCode getOpCode() const { return MI->getOpCode(); }
+ bool isDummyNode() const { return (MI == NULL); }
+ MachineBasicBlock &getMachineBasicBlock() const { return *MBB; }
- int getOrigIndexInBB() const { return origIndexInBB; }
+ int getOrigIndexInBB() const { return origIndexInBB; }
+ void print(std::ostream &os) const;
};
class SchedGraph : public SchedGraphCommon {
typedef hash_map<const MachineInstr*, SchedGraphNode*>::const_iterator iterator;
typedef hash_map<const MachineInstr*, SchedGraphNode*>::const_iterator const_iterator;
- MachineBasicBlock& getBasicBlock() const{return MBB;}
- const unsigned int getNumNodes() const { return GraphMap.size()+2; }
+ MachineBasicBlock& getBasicBlock() const{return MBB;}
+ const unsigned int getNumNodes() const { return GraphMap.size()+2; }
SchedGraphNode* getGraphNodeForInstr(const MachineInstr* MI) const {
const_iterator onePair = find(MI);
return (onePair != end())? onePair->second : NULL;
}
// Debugging support
- void dump () const;
+ void dump() const;
protected:
SchedGraph(MachineBasicBlock& mbb, const TargetMachine& TM);
private:
friend class SchedGraphSet; // give access to ctor
-
-
-
+
inline void noteGraphNodeForInstr (const MachineInstr* minstr,
- SchedGraphNode* node)
- {
+ SchedGraphNode* node) {
assert((*this)[minstr] == NULL);
(*this)[minstr] = node;
}
//
// Graph builder
//
- void buildGraph (const TargetMachine& target);
+ void buildGraph(const TargetMachine& target);
- void buildNodesForBB (const TargetMachine& target,
- MachineBasicBlock &MBB,
- std::vector<SchedGraphNode*>& memNV,
- std::vector<SchedGraphNode*>& callNV,
- RegToRefVecMap& regToRefVecMap,
- ValueToDefVecMap& valueToDefVecMap);
+ void buildNodesForBB(const TargetMachine& target,MachineBasicBlock &MBB,
+ std::vector<SchedGraphNode*>& memNV,
+ std::vector<SchedGraphNode*>& callNV,
+ RegToRefVecMap& regToRefVecMap,
+ ValueToDefVecMap& valueToDefVecMap);
- void findDefUseInfoAtInstr (const TargetMachine& target,
- SchedGraphNode* node,
- std::vector<SchedGraphNode*>& memNV,
- std::vector<SchedGraphNode*>& callNV,
- RegToRefVecMap& regToRefVecMap,
- ValueToDefVecMap& valueToDefVecMap);
-
+ void findDefUseInfoAtInstr(const TargetMachine& target, SchedGraphNode* node,
+ std::vector<SchedGraphNode*>& memNV,
+ std::vector<SchedGraphNode*>& callNV,
+ RegToRefVecMap& regToRefVecMap,
+ ValueToDefVecMap& valueToDefVecMap);
- void addEdgesForInstruction(const MachineInstr& minstr,
- const ValueToDefVecMap& valueToDefVecMap,
- const TargetMachine& target);
+ void addEdgesForInstruction(const MachineInstr& minstr,
+ const ValueToDefVecMap& valueToDefVecMap,
+ const TargetMachine& target);
- void addCDEdges (const TerminatorInst* term,
- const TargetMachine& target);
+ void addCDEdges(const TerminatorInst* term, const TargetMachine& target);
- void addMemEdges (const std::vector<SchedGraphNode*>& memNod,
- const TargetMachine& target);
+ void addMemEdges(const std::vector<SchedGraphNode*>& memNod,
+ const TargetMachine& target);
- void addCallCCEdges (const std::vector<SchedGraphNode*>& memNod,
- MachineBasicBlock& bbMvec,
- const TargetMachine& target);
- void addCallDepEdges (const std::vector<SchedGraphNode*>& callNV,
- const TargetMachine& target);
+ void addCallCCEdges(const std::vector<SchedGraphNode*>& memNod,
+ MachineBasicBlock& bbMvec,
+ const TargetMachine& target);
+
+ void addCallDepEdges(const std::vector<SchedGraphNode*>& callNV,
+ const TargetMachine& target);
- void addMachineRegEdges (RegToRefVecMap& regToRefVecMap,
- const TargetMachine& target);
+ void addMachineRegEdges(RegToRefVecMap& regToRefVecMap,
+ const TargetMachine& target);
- void addEdgesForValue (SchedGraphNode* refNode,
- const RefVec& defVec,
- const Value* defValue,
- bool refNodeIsDef,
- bool refNodeIsDefAndUse,
- const TargetMachine& target);
- void addDummyEdges();
+ void addEdgesForValue(SchedGraphNode* refNode, const RefVec& defVec,
+ const Value* defValue, bool refNodeIsDef,
+ bool refNodeIsDefAndUse,
+ const TargetMachine& target);
+
+ void addDummyEdges();
};
std::vector<SchedGraph*> Graphs;
// Graph builder
- void buildGraphsForMethod (const Function *F, const TargetMachine& target);
+ void buildGraphsForMethod(const Function *F, const TargetMachine& target);
inline void addGraph(SchedGraph* graph) {
assert(graph != NULL);
}
public:
- SchedGraphSet(const Function * function, const TargetMachine& target);
+ SchedGraphSet(const Function *function, const TargetMachine& target);
~SchedGraphSet();
//iterators
// operator*() differs for pred or succ iterator
inline _NodeType* operator*() const { return (_NodeType*)(*oi)->getSrc(); }
- inline _NodeType* operator->() const { return operator*(); }
+ inline _NodeType* operator->() const { return operator*(); }
inline _EdgeType* getEdge() const { return *(oi); }
inline bool operator!=(const _Self& x) const { return !operator==(x); }
inline _NodeType* operator*() const { return (_NodeType*)(*oi)->getSink(); }
- inline _NodeType* operator->() const { return operator*(); }
+ inline _NodeType* operator->() const { return operator*(); }
inline _EdgeType* getEdge() const { return *(oi); }
typedef SGPredIterator<const SchedGraphNode, const SchedGraphEdge,SchedGraphNode::const_iterator>
sg_pred_const_iterator;
-inline sg_pred_iterator pred_begin( SchedGraphNode *N) {
+inline sg_pred_iterator pred_begin(SchedGraphNode *N) {
return sg_pred_iterator(N->beginInEdges());
}
-inline sg_pred_iterator pred_end( SchedGraphNode *N) {
+inline sg_pred_iterator pred_end(SchedGraphNode *N) {
return sg_pred_iterator(N->endInEdges());
}
inline sg_pred_const_iterator pred_begin(const SchedGraphNode *N) {
return sg_pred_const_iterator(N->beginInEdges());
}
-inline sg_pred_const_iterator pred_end( const SchedGraphNode *N) {
+inline sg_pred_const_iterator pred_end(const SchedGraphNode *N) {
return sg_pred_const_iterator(N->endInEdges());
}
typedef SGSuccIterator<const SchedGraphNode, const SchedGraphEdge,SchedGraphNode::const_iterator>
sg_succ_const_iterator;
-inline sg_succ_iterator succ_begin( SchedGraphNode *N) {
+inline sg_succ_iterator succ_begin(SchedGraphNode *N) {
return sg_succ_iterator(N->beginOutEdges());
}
-inline sg_succ_iterator succ_end( SchedGraphNode *N) {
+inline sg_succ_iterator succ_end(SchedGraphNode *N) {
return sg_succ_iterator(N->endOutEdges());
}
inline sg_succ_const_iterator succ_begin(const SchedGraphNode *N) {
return sg_succ_const_iterator(N->beginOutEdges());
}
-inline sg_succ_const_iterator succ_end( const SchedGraphNode *N) {
+inline sg_succ_const_iterator succ_end(const SchedGraphNode *N) {
return sg_succ_const_iterator(N->endOutEdges());
}
}
};
-
-std::ostream &operator<<(std::ostream& os, const SchedGraphEdge& edge);
-std::ostream &operator<<(std::ostream &os, const SchedGraphNode& node);
-
#endif
+//===- SchedGraphCommon.cpp - Scheduling Graphs Base Class- ---------------===//
+//
+// Scheduling graph base class that contains common information for SchedGraph
+// and ModuloSchedGraph scheduling graphs.
+//
+//===----------------------------------------------------------------------===//
+
#include "llvm/CodeGen/SchedGraphCommon.h"
#include "Support/STLExtras.h"
class SchedGraphCommon;
-//
+//
// class SchedGraphEdge
//
-
-/*ctor*/
SchedGraphEdge::SchedGraphEdge(SchedGraphNodeCommon* _src,
SchedGraphNodeCommon* _sink,
SchedGraphEdgeDepType _depType,
unsigned int _depOrderType,
int _minDelay)
- : src(_src),
- sink(_sink),
- depType(_depType),
- depOrderType(_depOrderType),
- minDelay((_minDelay >= 0)? _minDelay : _src->getLatency()),
- val(NULL)
-{
+ : src(_src), sink(_sink), depType(_depType), depOrderType(_depOrderType),
+ minDelay((_minDelay >= 0)? _minDelay : _src->getLatency()), val(NULL) {
+
iteDiff=0;
assert(src != sink && "Self-loop in scheduling graph!");
src->addOutEdge(this);
sink->addInEdge(this);
}
-
-/*ctor*/
SchedGraphEdge::SchedGraphEdge(SchedGraphNodeCommon* _src,
SchedGraphNodeCommon* _sink,
const Value* _val,
unsigned int _depOrderType,
int _minDelay)
- : src(_src),
- sink(_sink),
- depType(ValueDep),
- depOrderType(_depOrderType),
- minDelay((_minDelay >= 0)? _minDelay : _src->getLatency()),
- val(_val)
-{
+ : src(_src), sink(_sink), depType(ValueDep), depOrderType(_depOrderType),
+ minDelay((_minDelay >= 0)? _minDelay : _src->getLatency()), val(_val) {
iteDiff=0;
assert(src != sink && "Self-loop in scheduling graph!");
src->addOutEdge(this);
sink->addInEdge(this);
}
-
-/*ctor*/
SchedGraphEdge::SchedGraphEdge(SchedGraphNodeCommon* _src,
SchedGraphNodeCommon* _sink,
unsigned int _regNum,
unsigned int _depOrderType,
int _minDelay)
- : src(_src),
- sink(_sink),
- depType(MachineRegister),
+ : src(_src), sink(_sink), depType(MachineRegister),
depOrderType(_depOrderType),
minDelay((_minDelay >= 0)? _minDelay : _src->getLatency()),
- machineRegNum(_regNum)
-{
+ machineRegNum(_regNum) {
iteDiff=0;
assert(src != sink && "Self-loop in scheduling graph!");
src->addOutEdge(this);
sink->addInEdge(this);
}
-
-/*ctor*/
SchedGraphEdge::SchedGraphEdge(SchedGraphNodeCommon* _src,
SchedGraphNodeCommon* _sink,
ResourceId _resourceId,
int _minDelay)
- : src(_src),
- sink(_sink),
- depType(MachineResource),
- depOrderType(NonDataDep),
+ : src(_src), sink(_sink), depType(MachineResource), depOrderType(NonDataDep),
minDelay((_minDelay >= 0)? _minDelay : _src->getLatency()),
- resourceId(_resourceId)
-{
+ resourceId(_resourceId) {
iteDiff=0;
assert(src != sink && "Self-loop in scheduling graph!");
src->addOutEdge(this);
sink->addInEdge(this);
}
-/*dtor*/
-SchedGraphEdge::~SchedGraphEdge()
-{
-}
-
-void SchedGraphEdge::dump(int indent) const {
- std::cerr << std::string(indent*2, ' ') << *this;
-}
-/*ctor*/
-
-SchedGraphNodeCommon::SchedGraphNodeCommon(unsigned _nodeId)
- :ID(_nodeId),
- latency(0){
-
+void SchedGraphEdge::dump(int indent) const {
+ std::cerr << std::string(indent*2, ' ') << *this;
}
/*dtor*/
deleter<SchedGraphEdge>);
}
-
-void SchedGraphNodeCommon::dump(int indent) const {
- std::cerr << std::string(indent*2, ' ') << *this;
-}
-
-
-inline void
-SchedGraphNodeCommon::addInEdge(SchedGraphEdge* edge)
-{
- inEdges.push_back(edge);
-}
-
-
-inline void
-SchedGraphNodeCommon::addOutEdge(SchedGraphEdge* edge)
-{
- outEdges.push_back(edge);
-}
-
-inline void
-SchedGraphNodeCommon::removeInEdge(const SchedGraphEdge* edge)
-{
+void SchedGraphNodeCommon::removeInEdge(const SchedGraphEdge* edge) {
assert(edge->getSink() == this);
for (iterator I = beginInEdges(); I != endInEdges(); ++I)
- if ((*I) == edge)
- {
- inEdges.erase(I);
- break;
- }
+ if ((*I) == edge) {
+ inEdges.erase(I);
+ break;
+ }
}
-inline void
-SchedGraphNodeCommon::removeOutEdge(const SchedGraphEdge* edge)
-{
+void SchedGraphNodeCommon::removeOutEdge(const SchedGraphEdge* edge) {
assert(edge->getSrc() == this);
for (iterator I = beginOutEdges(); I != endOutEdges(); ++I)
- if ((*I) == edge)
- {
- outEdges.erase(I);
- break;
- }
+ if ((*I) == edge) {
+ outEdges.erase(I);
+ break;
+ }
}
-
-//class SchedGraphCommon
-
-/*ctor*/
-SchedGraphCommon::SchedGraphCommon()
-{
+void SchedGraphNodeCommon::dump(int indent) const {
+ std::cerr << std::string(indent*2, ' ') << *this;
}
+//class SchedGraphCommon
-/*dtor*/
-SchedGraphCommon::~SchedGraphCommon()
-{
-
+SchedGraphCommon::~SchedGraphCommon() {
delete graphRoot;
delete graphLeaf;
}
-void
-SchedGraphCommon::eraseIncomingEdges(SchedGraphNodeCommon* node, bool addDummyEdges)
-{
+void SchedGraphCommon::eraseIncomingEdges(SchedGraphNodeCommon* node,
+ bool addDummyEdges) {
// Delete and disconnect all in-edges for the node
for (SchedGraphNodeCommon::iterator I = node->beginInEdges();
- I != node->endInEdges(); ++I)
- {
- SchedGraphNodeCommon* srcNode = (*I)->getSrc();
- srcNode->removeOutEdge(*I);
- delete *I;
+ I != node->endInEdges(); ++I) {
+ SchedGraphNodeCommon* srcNode = (*I)->getSrc();
+ srcNode->removeOutEdge(*I);
+ delete *I;
+
+ if (addDummyEdges && srcNode != getRoot() &&
+ srcNode->beginOutEdges() == srcNode->endOutEdges()) {
- if (addDummyEdges &&
- srcNode != getRoot() &&
- srcNode->beginOutEdges() == srcNode->endOutEdges())
- { // srcNode has no more out edges, so add an edge to dummy EXIT node
- assert(node != getLeaf() && "Adding edge that was just removed?");
- (void) new SchedGraphEdge(srcNode, getLeaf(),
- SchedGraphEdge::CtrlDep, SchedGraphEdge::NonDataDep, 0);
- }
+ // srcNode has no more out edges, so add an edge to dummy EXIT node
+ assert(node != getLeaf() && "Adding edge that was just removed?");
+ (void) new SchedGraphEdge(srcNode, getLeaf(),
+ SchedGraphEdge::CtrlDep,
+ SchedGraphEdge::NonDataDep, 0);
}
+ }
node->inEdges.clear();
}
-void
-SchedGraphCommon::eraseOutgoingEdges(SchedGraphNodeCommon* node, bool addDummyEdges)
-{
+void SchedGraphCommon::eraseOutgoingEdges(SchedGraphNodeCommon* node,
+ bool addDummyEdges) {
// Delete and disconnect all out-edges for the node
for (SchedGraphNodeCommon::iterator I = node->beginOutEdges();
- I != node->endOutEdges(); ++I)
- {
- SchedGraphNodeCommon* sinkNode = (*I)->getSink();
- sinkNode->removeInEdge(*I);
- delete *I;
+ I != node->endOutEdges(); ++I) {
+ SchedGraphNodeCommon* sinkNode = (*I)->getSink();
+ sinkNode->removeInEdge(*I);
+ delete *I;
+
+ if (addDummyEdges &&
+ sinkNode != getLeaf() &&
+ sinkNode->beginInEdges() == sinkNode->endInEdges()) {
- if (addDummyEdges &&
- sinkNode != getLeaf() &&
- sinkNode->beginInEdges() == sinkNode->endInEdges())
- { //sinkNode has no more in edges, so add an edge from dummy ENTRY node
- assert(node != getRoot() && "Adding edge that was just removed?");
- (void) new SchedGraphEdge(getRoot(), sinkNode,
- SchedGraphEdge::CtrlDep, SchedGraphEdge::NonDataDep, 0);
- }
+ //sinkNode has no more in edges, so add an edge from dummy ENTRY node
+ assert(node != getRoot() && "Adding edge that was just removed?");
+ (void) new SchedGraphEdge(getRoot(), sinkNode,
+ SchedGraphEdge::CtrlDep,
+ SchedGraphEdge::NonDataDep, 0);
}
+ }
node->outEdges.clear();
}
-void
-SchedGraphCommon::eraseIncidentEdges(SchedGraphNodeCommon* node, bool addDummyEdges)
-{
+void SchedGraphCommon::eraseIncidentEdges(SchedGraphNodeCommon* node,
+ bool addDummyEdges) {
this->eraseIncomingEdges(node, addDummyEdges);
this->eraseOutgoingEdges(node, addDummyEdges);
}
-std::ostream &operator<<(std::ostream &os, const SchedGraphNodeCommon& node)
-{
-
- return os;
-}
//===----------------------------------------------------------------------===//
#include "SchedGraph.h"
-#include "llvm/CodeGen/SchedGraphCommon.h"
-#include <iostream>
-
-#include "llvm/Target/TargetMachine.h"
-#include "llvm/Target/TargetInstrInfo.h"
-#include "Support/STLExtras.h"
-#include "llvm/BasicBlock.h"
-#include "llvm/CodeGen/MachineCodeForInstruction.h"
-#include "llvm/Target/TargetRegInfo.h"
#include "llvm/Function.h"
-#include "llvm/CodeGen/MachineFunction.h"
-#include "llvm/CodeGen/InstrSelection.h"
#include "llvm/iOther.h"
-#include "Support/StringExtras.h"
-
+#include "llvm/CodeGen/MachineCodeForInstruction.h"
+#include "llvm/CodeGen/MachineFunction.h"
+#include "llvm/Target/TargetInstrInfo.h"
+#include "llvm/Target/TargetMachine.h"
+#include "llvm/Target/TargetRegInfo.h"
+#include "Support/STLExtras.h"
//*********************** Internal Data Structures *************************/
// class SchedGraphNode
//
-/*ctor*/
-SchedGraphNode::SchedGraphNode(unsigned NID,
- MachineBasicBlock *mbb,
- int indexInBB,
- const TargetMachine& Target)
- : SchedGraphNodeCommon(NID), origIndexInBB(indexInBB), MBB(mbb), MI(mbb ? (*mbb)[indexInBB] : 0)
- {
- if (MI)
- {
- MachineOpCode mopCode = MI->getOpCode();
- latency = Target.getInstrInfo().hasResultInterlock(mopCode)
- ? Target.getInstrInfo().minLatency(mopCode)
- : Target.getInstrInfo().maxLatency(mopCode);
- }
+SchedGraphNode::SchedGraphNode(unsigned NID, MachineBasicBlock *mbb,
+ int indexInBB, const TargetMachine& Target)
+ : SchedGraphNodeCommon(NID), origIndexInBB(indexInBB), MBB(mbb),
+ MI(mbb ? (*mbb)[indexInBB] : 0) {
+ if (MI) {
+ MachineOpCode mopCode = MI->getOpCode();
+ latency = Target.getInstrInfo().hasResultInterlock(mopCode)
+ ? Target.getInstrInfo().minLatency(mopCode)
+ : Target.getInstrInfo().maxLatency(mopCode);
+ }
}
-
-/*dtor*/
-SchedGraphNode::~SchedGraphNode()
-{
+SchedGraphNode::~SchedGraphNode() {
// for each node, delete its out-edges
std::for_each(beginOutEdges(), endOutEdges(),
deleter<SchedGraphEdge>);
//
// class SchedGraph
//
-
-
-/*ctor*/
SchedGraph::SchedGraph(MachineBasicBlock &mbb, const TargetMachine& target)
: MBB(mbb) {
buildGraph(target);
}
-
-/*dtor*/
-SchedGraph::~SchedGraph()
-{
+SchedGraph::~SchedGraph() {
for (const_iterator I = begin(); I != end(); ++I)
delete I->second;
delete graphRoot;
delete graphLeaf;
}
-
-void
-SchedGraph::dump() const
-{
+void SchedGraph::dump() const {
std::cerr << " Sched Graph for Basic Block: ";
std::cerr << MBB.getBasicBlock()->getName()
<< " (" << MBB.getBasicBlock() << ")";
-void
-SchedGraph::addDummyEdges()
-{
+void SchedGraph::addDummyEdges() {
assert(graphRoot->outEdges.size() == 0);
- for (const_iterator I=begin(); I != end(); ++I)
- {
+ for (const_iterator I=begin(); I != end(); ++I) {
SchedGraphNode* node = (*I).second;
assert(node != graphRoot && node != graphLeaf);
if (node->beginInEdges() == node->endInEdges())
}
-void
-SchedGraph::addCDEdges(const TerminatorInst* term,
- const TargetMachine& target)
-{
+void SchedGraph::addCDEdges(const TerminatorInst* term,
+ const TargetMachine& target) {
const TargetInstrInfo& mii = target.getInstrInfo();
MachineCodeForInstruction &termMvec = MachineCodeForInstruction::get(term);
"No branch instructions for terminator? Ok, but weird!");
if (first == termMvec.size())
return;
-
+
SchedGraphNode* firstBrNode = getGraphNodeForInstr(termMvec[first]);
-
+
// Add CD edges from each instruction in the sequence to the
// *last preceding* branch instr. in the sequence
// Use a latency of 0 because we only need to prevent out-of-order issue.
//
- for (unsigned i = termMvec.size(); i > first+1; --i)
- {
+ for (unsigned i = termMvec.size(); i > first+1; --i) {
SchedGraphNode* toNode = getGraphNodeForInstr(termMvec[i-1]);
assert(toNode && "No node for instr generated for branch/ret?");
-
+
for (unsigned j = i-1; j != 0; --j)
if (mii.isBranch(termMvec[j-1]->getOpCode()) ||
- mii.isReturn(termMvec[j-1]->getOpCode()))
- {
+ mii.isReturn(termMvec[j-1]->getOpCode())) {
SchedGraphNode* brNode = getGraphNodeForInstr(termMvec[j-1]);
assert(brNode && "No node for instr generated for branch/ret?");
(void) new SchedGraphEdge(brNode, toNode, SchedGraphEdge::CtrlDep,
// Add CD edges from each instruction preceding the first branch
// to the first branch. Use a latency of 0 as above.
//
- for (unsigned i = first; i != 0; --i)
- {
+ for (unsigned i = first; i != 0; --i) {
SchedGraphNode* fromNode = getGraphNodeForInstr(termMvec[i-1]);
assert(fromNode && "No node for instr generated for branch?");
(void) new SchedGraphEdge(fromNode, firstBrNode, SchedGraphEdge::CtrlDep,
// Now add CD edges to the first branch instruction in the sequence from
// all preceding instructions in the basic block. Use 0 latency again.
//
- for (unsigned i=0, N=MBB.size(); i < N; i++)
- {
+ for (unsigned i=0, N=MBB.size(); i < N; i++) {
if (MBB[i] == termMvec[first]) // reached the first branch
break;
-
+
SchedGraphNode* fromNode = this->getGraphNodeForInstr(MBB[i]);
if (fromNode == NULL)
continue; // dummy instruction, e.g., PHI
-
+
(void) new SchedGraphEdge(fromNode, firstBrNode,
SchedGraphEdge::CtrlDep,
SchedGraphEdge::NonDataDep, 0);
unsigned d = mii.getNumDelaySlots(MBB[i]->getOpCode());
assert(i+d < N && "Insufficient delay slots for instruction?");
- for (unsigned j=1; j <= d; j++)
- {
+ for (unsigned j=1; j <= d; j++) {
SchedGraphNode* toNode = this->getGraphNodeForInstr(MBB[i+j]);
assert(toNode && "No node for machine instr in delay slot?");
(void) new SchedGraphEdge(fromNode, toNode,
static const unsigned int SG_DepOrderArray[][3] = {
{ SchedGraphEdge::NonDataDep,
- SchedGraphEdge::AntiDep,
- SchedGraphEdge::AntiDep },
+ SchedGraphEdge::AntiDep,
+ SchedGraphEdge::AntiDep },
{ SchedGraphEdge::TrueDep,
- SchedGraphEdge::OutputDep,
- SchedGraphEdge::TrueDep | SchedGraphEdge::OutputDep },
+ SchedGraphEdge::OutputDep,
+ SchedGraphEdge::TrueDep | SchedGraphEdge::OutputDep },
{ SchedGraphEdge::TrueDep,
- SchedGraphEdge::AntiDep | SchedGraphEdge::OutputDep,
- SchedGraphEdge::TrueDep | SchedGraphEdge::AntiDep
- | SchedGraphEdge::OutputDep }
+ SchedGraphEdge::AntiDep | SchedGraphEdge::OutputDep,
+ SchedGraphEdge::TrueDep | SchedGraphEdge::AntiDep
+ | SchedGraphEdge::OutputDep }
};
// Use latency 1 just to ensure that memory operations are ordered;
// latency does not otherwise matter (true dependences enforce that).
//
-void
-SchedGraph::addMemEdges(const std::vector<SchedGraphNode*>& memNodeVec,
- const TargetMachine& target)
-{
+void SchedGraph::addMemEdges(const std::vector<SchedGraphNode*>& memNodeVec,
+ const TargetMachine& target) {
const TargetInstrInfo& mii = target.getInstrInfo();
// Instructions in memNodeVec are in execution order within the basic block,
// so simply look at all pairs <memNodeVec[i], memNodeVec[j: j > i]>.
//
- for (unsigned im=0, NM=memNodeVec.size(); im < NM; im++)
- {
+ for (unsigned im=0, NM=memNodeVec.size(); im < NM; im++) {
MachineOpCode fromOpCode = memNodeVec[im]->getOpCode();
int fromType = (mii.isCall(fromOpCode)? SG_CALL_REF
: (mii.isLoad(fromOpCode)? SG_LOAD_REF
: SG_STORE_REF));
- for (unsigned jm=im+1; jm < NM; jm++)
- {
+ for (unsigned jm=im+1; jm < NM; jm++) {
MachineOpCode toOpCode = memNodeVec[jm]->getOpCode();
int toType = (mii.isCall(toOpCode)? SG_CALL_REF
: (mii.isLoad(toOpCode)? SG_LOAD_REF
: SG_STORE_REF));
-
+
if (fromType != SG_LOAD_REF || toType != SG_LOAD_REF)
(void) new SchedGraphEdge(memNodeVec[im], memNodeVec[jm],
SchedGraphEdge::MemoryDep,
// Use a latency of 0 because we only need to prevent out-of-order issue,
// like with control dependences.
//
-void
-SchedGraph::addCallDepEdges(const std::vector<SchedGraphNode*>& callDepNodeVec,
- const TargetMachine& target)
-{
+void SchedGraph::addCallDepEdges(const std::vector<SchedGraphNode*>& callDepNodeVec,
+ const TargetMachine& target) {
const TargetInstrInfo& mii = target.getInstrInfo();
// Instructions in memNodeVec are in execution order within the basic block,
// so simply look at all pairs <memNodeVec[i], memNodeVec[j: j > i]>.
//
for (unsigned ic=0, NC=callDepNodeVec.size(); ic < NC; ic++)
- if (mii.isCall(callDepNodeVec[ic]->getOpCode()))
- {
- // Add SG_CALL_REF edges from all preds to this instruction.
- for (unsigned jc=0; jc < ic; jc++)
- (void) new SchedGraphEdge(callDepNodeVec[jc], callDepNodeVec[ic],
- SchedGraphEdge::MachineRegister,
- MachineIntRegsRID, 0);
-
- // And do the same from this instruction to all successors.
- for (unsigned jc=ic+1; jc < NC; jc++)
- (void) new SchedGraphEdge(callDepNodeVec[ic], callDepNodeVec[jc],
- SchedGraphEdge::MachineRegister,
- MachineIntRegsRID, 0);
- }
+ if (mii.isCall(callDepNodeVec[ic]->getOpCode())) {
+ // Add SG_CALL_REF edges from all preds to this instruction.
+ for (unsigned jc=0; jc < ic; jc++)
+ (void) new SchedGraphEdge(callDepNodeVec[jc], callDepNodeVec[ic],
+ SchedGraphEdge::MachineRegister,
+ MachineIntRegsRID, 0);
+
+ // And do the same from this instruction to all successors.
+ for (unsigned jc=ic+1; jc < NC; jc++)
+ (void) new SchedGraphEdge(callDepNodeVec[ic], callDepNodeVec[jc],
+ SchedGraphEdge::MachineRegister,
+ MachineIntRegsRID, 0);
+ }
#ifdef CALL_DEP_NODE_VEC_CANNOT_WORK
// Find the call instruction nodes and put them in a vector.
//
int lastCallNodeIdx = -1;
for (unsigned i=0, N=bbMvec.size(); i < N; i++)
- if (mii.isCall(bbMvec[i]->getOpCode()))
- {
+ if (mii.isCall(bbMvec[i]->getOpCode())) {
++lastCallNodeIdx;
for ( ; lastCallNodeIdx < (int)callNodeVec.size(); ++lastCallNodeIdx)
if (callNodeVec[lastCallNodeIdx]->getMachineInstr() == bbMvec[i])
break;
assert(lastCallNodeIdx < (int)callNodeVec.size() && "Missed Call?");
}
- else if (mii.isCCInstr(bbMvec[i]->getOpCode()))
- {
+ else if (mii.isCCInstr(bbMvec[i]->getOpCode())) {
// Add incoming/outgoing edges from/to preceding/later calls
SchedGraphNode* ccNode = this->getGraphNodeForInstr(bbMvec[i]);
int j=0;
}
-void
-SchedGraph::addMachineRegEdges(RegToRefVecMap& regToRefVecMap,
- const TargetMachine& target)
-{
+void SchedGraph::addMachineRegEdges(RegToRefVecMap& regToRefVecMap,
+ const TargetMachine& target) {
// This code assumes that two registers with different numbers are
// not aliased!
//
for (RegToRefVecMap::iterator I = regToRefVecMap.begin();
- I != regToRefVecMap.end(); ++I)
- {
+ I != regToRefVecMap.end(); ++I) {
int regNum = (*I).first;
RefVec& regRefVec = (*I).second;
-
+
// regRefVec is ordered by control flow order in the basic block
for (unsigned i=0; i < regRefVec.size(); ++i) {
SchedGraphNode* node = regRefVec[i].first;
new SchedGraphEdge(prevNode, node, regNum,
SchedGraphEdge::AntiDep);
}
-
+
if (prevIsDef)
if (!isDef || isDefAndUse)
new SchedGraphEdge(prevNode, node, regNum,
// in the basic block. refNode may be a use, a def, or both.
// We do not consider other uses because we are not building use-use deps.
//
-void
-SchedGraph::addEdgesForValue(SchedGraphNode* refNode,
- const RefVec& defVec,
- const Value* defValue,
- bool refNodeIsDef,
- bool refNodeIsDefAndUse,
- const TargetMachine& target)
-{
+void SchedGraph::addEdgesForValue(SchedGraphNode* refNode,
+ const RefVec& defVec,
+ const Value* defValue,
+ bool refNodeIsDef,
+ bool refNodeIsDefAndUse,
+ const TargetMachine& target) {
bool refNodeIsUse = !refNodeIsDef || refNodeIsDefAndUse;
// Add true or output dep edges from all def nodes before refNode in BB.
// Add anti or output dep edges to all def nodes after refNode.
- for (RefVec::const_iterator I=defVec.begin(), E=defVec.end(); I != E; ++I)
- {
+ for (RefVec::const_iterator I=defVec.begin(), E=defVec.end(); I != E; ++I) {
if ((*I).first == refNode)
continue; // Dont add any self-loops
-
+
if ((*I).first->getOrigIndexInBB() < refNode->getOrigIndexInBB()) {
// (*).first is before refNode
if (refNodeIsDef)
}
-void
-SchedGraph::addEdgesForInstruction(const MachineInstr& MI,
- const ValueToDefVecMap& valueToDefVecMap,
- const TargetMachine& target)
-{
+void SchedGraph::addEdgesForInstruction(const MachineInstr& MI,
+ const ValueToDefVecMap& valueToDefVecMap,
+ const TargetMachine& target) {
SchedGraphNode* node = getGraphNodeForInstr(&MI);
if (node == NULL)
return;
// Add edges for all operands of the machine instruction.
//
- for (unsigned i = 0, numOps = MI.getNumOperands(); i != numOps; ++i)
- {
- switch (MI.getOperand(i).getType())
- {
+ for (unsigned i = 0, numOps = MI.getNumOperands(); i != numOps; ++i) {
+ switch (MI.getOperand(i).getType()) {
case MachineOperand::MO_VirtualRegister:
case MachineOperand::MO_CCRegister:
- if (const Value* srcI = MI.getOperand(i).getVRegValue())
- {
+ if (const Value* srcI = MI.getOperand(i).getVRegValue()) {
ValueToDefVecMap::const_iterator I = valueToDefVecMap.find(srcI);
if (I != valueToDefVecMap.end())
addEdgesForValue(node, I->second, srcI,
MI.getOperand(i).opIsDefAndUse(), target);
}
break;
-
+
case MachineOperand::MO_MachineRegister:
break;
-
+
case MachineOperand::MO_SignExtendedImmed:
case MachineOperand::MO_UnextendedImmed:
case MachineOperand::MO_PCRelativeDisp:
break; // nothing to do for immediate fields
-
+
default:
assert(0 && "Unknown machine operand type in SchedGraph builder");
break;
//
for (unsigned i=0, N=MI.getNumImplicitRefs(); i < N; ++i)
if (MI.getImplicitOp(i).opIsUse() || MI.getImplicitOp(i).opIsDefAndUse())
- if (const Value* srcI = MI.getImplicitRef(i))
- {
+ if (const Value* srcI = MI.getImplicitRef(i)) {
ValueToDefVecMap::const_iterator I = valueToDefVecMap.find(srcI);
if (I != valueToDefVecMap.end())
addEdgesForValue(node, I->second, srcI,
}
-void
-SchedGraph::findDefUseInfoAtInstr(const TargetMachine& target,
- SchedGraphNode* node,
- std::vector<SchedGraphNode*>& memNodeVec,
- std::vector<SchedGraphNode*>& callDepNodeVec,
- RegToRefVecMap& regToRefVecMap,
- ValueToDefVecMap& valueToDefVecMap)
-{
+void SchedGraph::findDefUseInfoAtInstr(const TargetMachine& target,
+ SchedGraphNode* node,
+ std::vector<SchedGraphNode*>& memNodeVec,
+ std::vector<SchedGraphNode*>& callDepNodeVec,
+ RegToRefVecMap& regToRefVecMap,
+ ValueToDefVecMap& valueToDefVecMap) {
const TargetInstrInfo& mii = target.getInstrInfo();
MachineOpCode opCode = node->getOpCode();
-
+
if (mii.isCall(opCode) || mii.isCCInstr(opCode))
callDepNodeVec.push_back(node);
-
+
if (mii.isLoad(opCode) || mii.isStore(opCode) || mii.isCall(opCode))
memNodeVec.push_back(node);
// Collect the register references and value defs. for explicit operands
//
const MachineInstr& MI = *node->getMachineInstr();
- for (int i=0, numOps = (int) MI.getNumOperands(); i < numOps; i++)
- {
+ for (int i=0, numOps = (int) MI.getNumOperands(); i < numOps; i++) {
const MachineOperand& mop = MI.getOperand(i);
-
+
// if this references a register other than the hardwired
// "zero" register, record the reference.
- if (mop.hasAllocatedReg())
- {
+ if (mop.hasAllocatedReg()) {
int regNum = mop.getAllocatedRegNum();
-
+
// If this is not a dummy zero register, record the reference in order
if (regNum != target.getRegInfo().getZeroRegNum())
regToRefVecMap[mop.getAllocatedRegNum()]
mop.getType() == MachineOperand::MO_CCRegister)
&& "Do not expect any other kind of operand to be defined!");
assert(mop.getVRegValue() != NULL && "Null value being defined?");
-
+
valueToDefVecMap[mop.getVRegValue()].push_back(std::make_pair(node, i));
}
// Collect value defs. for implicit operands. They may have allocated
// physical registers also.
//
- for (unsigned i=0, N = MI.getNumImplicitRefs(); i != N; ++i)
- {
+ for (unsigned i=0, N = MI.getNumImplicitRefs(); i != N; ++i) {
const MachineOperand& mop = MI.getImplicitOp(i);
- if (mop.hasAllocatedReg())
- {
+ if (mop.hasAllocatedReg()) {
int regNum = mop.getAllocatedRegNum();
if (regNum != target.getRegInfo().getZeroRegNum())
regToRefVecMap[mop.getAllocatedRegNum()]
}
-void
-SchedGraph::buildNodesForBB(const TargetMachine& target,
- MachineBasicBlock& MBB,
- std::vector<SchedGraphNode*>& memNodeVec,
- std::vector<SchedGraphNode*>& callDepNodeVec,
- RegToRefVecMap& regToRefVecMap,
- ValueToDefVecMap& valueToDefVecMap)
-{
+void SchedGraph::buildNodesForBB(const TargetMachine& target,
+ MachineBasicBlock& MBB,
+ std::vector<SchedGraphNode*>& memNodeVec,
+ std::vector<SchedGraphNode*>& callDepNodeVec,
+ RegToRefVecMap& regToRefVecMap,
+ ValueToDefVecMap& valueToDefVecMap) {
const TargetInstrInfo& mii = target.getInstrInfo();
// Build graph nodes for each VM instruction and gather def/use info.
}
-void
-SchedGraph::buildGraph(const TargetMachine& target)
-{
+void SchedGraph::buildGraph(const TargetMachine& target) {
// Use this data structure to note all machine operands that compute
// ordinary LLVM values. These must be computed defs (i.e., instructions).
// Note that there may be multiple machine instructions that define
//
// class SchedGraphSet
//
-
-/*ctor*/
SchedGraphSet::SchedGraphSet(const Function* _function,
const TargetMachine& target) :
- function(_function)
-{
+ function(_function) {
buildGraphsForMethod(function, target);
}
-
-/*dtor*/
-SchedGraphSet::~SchedGraphSet()
-{
+SchedGraphSet::~SchedGraphSet() {
// delete all the graphs
for(iterator I = begin(), E = end(); I != E; ++I)
delete *I; // destructor is a friend
}
-void
-SchedGraphSet::dump() const
-{
+void SchedGraphSet::dump() const {
std::cerr << "======== Sched graphs for function `" << function->getName()
<< "' ========\n\n";
}
-void
-SchedGraphSet::buildGraphsForMethod(const Function *F,
- const TargetMachine& target)
-{
+void SchedGraphSet::buildGraphsForMethod(const Function *F,
+ const TargetMachine& target) {
MachineFunction &MF = MachineFunction::get(F);
for (MachineFunction::iterator I = MF.begin(), E = MF.end(); I != E; ++I)
addGraph(new SchedGraph(*I, target));
}
-std::ostream &operator<<(std::ostream &os, const SchedGraphEdge& edge)
-{
- os << "edge [" << edge.src->getNodeId() << "] -> ["
- << edge.sink->getNodeId() << "] : ";
-
- switch(edge.depType) {
- case SchedGraphEdge::CtrlDep: os<< "Control Dep"; break;
- case SchedGraphEdge::ValueDep: os<< "Reg Value " << edge.val; break;
- case SchedGraphEdge::MemoryDep: os<< "Memory Dep"; break;
- case SchedGraphEdge::MachineRegister: os<< "Reg " <<edge.machineRegNum;break;
- case SchedGraphEdge::MachineResource: os<<"Resource "<<edge.resourceId;break;
- default: assert(0); break;
+void SchedGraphEdge::print(std::ostream &os) const {
+ os << "edge [" << src->getNodeId() << "] -> ["
+ << sink->getNodeId() << "] : ";
+
+ switch(depType) {
+ case SchedGraphEdge::CtrlDep:
+ os<< "Control Dep";
+ break;
+ case SchedGraphEdge::ValueDep:
+ os<< "Reg Value " << val;
+ break;
+ case SchedGraphEdge::MemoryDep:
+ os<< "Memory Dep";
+ break;
+ case SchedGraphEdge::MachineRegister:
+ os<< "Reg " << machineRegNum;
+ break;
+ case SchedGraphEdge::MachineResource:
+ os<<"Resource "<< resourceId;
+ break;
+ default:
+ assert(0);
+ break;
}
- os << " : delay = " << edge.minDelay << "\n";
-
- return os;
+ os << " : delay = " << minDelay << "\n";
}
-std::ostream &operator<<(std::ostream &os, const SchedGraphNode& node)
-{
+void SchedGraphNode::print(std::ostream &os) const {
os << std::string(8, ' ')
- << "Node " << node.ID << " : "
- << "latency = " << node.latency << "\n" << std::string(12, ' ');
+ << "Node " << ID << " : "
+ << "latency = " << latency << "\n" << std::string(12, ' ');
- if (node.getMachineInstr() == NULL)
+ if (getMachineInstr() == NULL)
os << "(Dummy node)\n";
else {
- os << *node.getMachineInstr() << "\n" << std::string(12, ' ');
- os << node.inEdges.size() << " Incoming Edges:\n";
- for (unsigned i=0, N=node.inEdges.size(); i < N; i++)
- os << std::string(16, ' ') << *node.inEdges[i];
+ os << *getMachineInstr() << "\n" << std::string(12, ' ');
+ os << inEdges.size() << " Incoming Edges:\n";
+ for (unsigned i=0, N = inEdges.size(); i < N; i++)
+ os << std::string(16, ' ') << *inEdges[i];
- os << std::string(12, ' ') << node.outEdges.size()
+ os << std::string(12, ' ') << outEdges.size()
<< " Outgoing Edges:\n";
- for (unsigned i=0, N=node.outEdges.size(); i < N; i++)
- os << std::string(16, ' ') << *node.outEdges[i];
+ for (unsigned i=0, N= outEdges.size(); i < N; i++)
+ os << std::string(16, ' ') << *outEdges[i];
}
-
- return os;
}
#ifndef LLVM_CODEGEN_SCHEDGRAPH_H
#define LLVM_CODEGEN_SCHEDGRAPH_H
+#include "llvm/CodeGen/SchedGraphCommon.h"
#include "llvm/CodeGen/MachineInstr.h"
-#include "Support/GraphTraits.h"
-#include "Support/hash_map"
#include "llvm/Transforms/Scalar.h"
-#include "llvm/CodeGen/SchedGraphCommon.h"
+#include "Support/hash_map"
+#include "Support/GraphTraits.h"
+
class RegToRefVecMap;
class ValueToDefVecMap;
const MachineInstr *MI;
- SchedGraphNode (unsigned nodeId, MachineBasicBlock *mbb,
- int indexInBB, const TargetMachine& Target);
- ~SchedGraphNode ();
+ SchedGraphNode(unsigned nodeId, MachineBasicBlock *mbb, int indexInBB,
+ const TargetMachine& Target);
+ ~SchedGraphNode();
friend class SchedGraph; // give access for ctor and dtor
friend class SchedGraphEdge; // give access for adding edges
public:
+
// Accessor methods
- const MachineInstr* getMachineInstr () const { return MI; }
- const MachineOpCode getOpCode () const { return MI->getOpCode(); }
- bool isDummyNode () const { return (MI == NULL); }
- MachineBasicBlock &getMachineBasicBlock() const { return *MBB; }
+ const MachineInstr* getMachineInstr() const { return MI; }
+ const MachineOpCode getOpCode() const { return MI->getOpCode(); }
+ bool isDummyNode() const { return (MI == NULL); }
+ MachineBasicBlock &getMachineBasicBlock() const { return *MBB; }
- int getOrigIndexInBB() const { return origIndexInBB; }
+ int getOrigIndexInBB() const { return origIndexInBB; }
+ void print(std::ostream &os) const;
};
class SchedGraph : public SchedGraphCommon {
typedef hash_map<const MachineInstr*, SchedGraphNode*>::const_iterator iterator;
typedef hash_map<const MachineInstr*, SchedGraphNode*>::const_iterator const_iterator;
- MachineBasicBlock& getBasicBlock() const{return MBB;}
- const unsigned int getNumNodes() const { return GraphMap.size()+2; }
+ MachineBasicBlock& getBasicBlock() const{return MBB;}
+ const unsigned int getNumNodes() const { return GraphMap.size()+2; }
SchedGraphNode* getGraphNodeForInstr(const MachineInstr* MI) const {
const_iterator onePair = find(MI);
return (onePair != end())? onePair->second : NULL;
}
// Debugging support
- void dump () const;
+ void dump() const;
protected:
SchedGraph(MachineBasicBlock& mbb, const TargetMachine& TM);
private:
friend class SchedGraphSet; // give access to ctor
-
-
-
+
inline void noteGraphNodeForInstr (const MachineInstr* minstr,
- SchedGraphNode* node)
- {
+ SchedGraphNode* node) {
assert((*this)[minstr] == NULL);
(*this)[minstr] = node;
}
//
// Graph builder
//
- void buildGraph (const TargetMachine& target);
+ void buildGraph(const TargetMachine& target);
- void buildNodesForBB (const TargetMachine& target,
- MachineBasicBlock &MBB,
- std::vector<SchedGraphNode*>& memNV,
- std::vector<SchedGraphNode*>& callNV,
- RegToRefVecMap& regToRefVecMap,
- ValueToDefVecMap& valueToDefVecMap);
+ void buildNodesForBB(const TargetMachine& target,MachineBasicBlock &MBB,
+ std::vector<SchedGraphNode*>& memNV,
+ std::vector<SchedGraphNode*>& callNV,
+ RegToRefVecMap& regToRefVecMap,
+ ValueToDefVecMap& valueToDefVecMap);
- void findDefUseInfoAtInstr (const TargetMachine& target,
- SchedGraphNode* node,
- std::vector<SchedGraphNode*>& memNV,
- std::vector<SchedGraphNode*>& callNV,
- RegToRefVecMap& regToRefVecMap,
- ValueToDefVecMap& valueToDefVecMap);
-
+ void findDefUseInfoAtInstr(const TargetMachine& target, SchedGraphNode* node,
+ std::vector<SchedGraphNode*>& memNV,
+ std::vector<SchedGraphNode*>& callNV,
+ RegToRefVecMap& regToRefVecMap,
+ ValueToDefVecMap& valueToDefVecMap);
- void addEdgesForInstruction(const MachineInstr& minstr,
- const ValueToDefVecMap& valueToDefVecMap,
- const TargetMachine& target);
+ void addEdgesForInstruction(const MachineInstr& minstr,
+ const ValueToDefVecMap& valueToDefVecMap,
+ const TargetMachine& target);
- void addCDEdges (const TerminatorInst* term,
- const TargetMachine& target);
+ void addCDEdges(const TerminatorInst* term, const TargetMachine& target);
- void addMemEdges (const std::vector<SchedGraphNode*>& memNod,
- const TargetMachine& target);
+ void addMemEdges(const std::vector<SchedGraphNode*>& memNod,
+ const TargetMachine& target);
- void addCallCCEdges (const std::vector<SchedGraphNode*>& memNod,
- MachineBasicBlock& bbMvec,
- const TargetMachine& target);
- void addCallDepEdges (const std::vector<SchedGraphNode*>& callNV,
- const TargetMachine& target);
+ void addCallCCEdges(const std::vector<SchedGraphNode*>& memNod,
+ MachineBasicBlock& bbMvec,
+ const TargetMachine& target);
+
+ void addCallDepEdges(const std::vector<SchedGraphNode*>& callNV,
+ const TargetMachine& target);
- void addMachineRegEdges (RegToRefVecMap& regToRefVecMap,
- const TargetMachine& target);
+ void addMachineRegEdges(RegToRefVecMap& regToRefVecMap,
+ const TargetMachine& target);
- void addEdgesForValue (SchedGraphNode* refNode,
- const RefVec& defVec,
- const Value* defValue,
- bool refNodeIsDef,
- bool refNodeIsDefAndUse,
- const TargetMachine& target);
- void addDummyEdges();
+ void addEdgesForValue(SchedGraphNode* refNode, const RefVec& defVec,
+ const Value* defValue, bool refNodeIsDef,
+ bool refNodeIsDefAndUse,
+ const TargetMachine& target);
+
+ void addDummyEdges();
};
std::vector<SchedGraph*> Graphs;
// Graph builder
- void buildGraphsForMethod (const Function *F, const TargetMachine& target);
+ void buildGraphsForMethod(const Function *F, const TargetMachine& target);
inline void addGraph(SchedGraph* graph) {
assert(graph != NULL);
}
public:
- SchedGraphSet(const Function * function, const TargetMachine& target);
+ SchedGraphSet(const Function *function, const TargetMachine& target);
~SchedGraphSet();
//iterators
// operator*() differs for pred or succ iterator
inline _NodeType* operator*() const { return (_NodeType*)(*oi)->getSrc(); }
- inline _NodeType* operator->() const { return operator*(); }
+ inline _NodeType* operator->() const { return operator*(); }
inline _EdgeType* getEdge() const { return *(oi); }
inline bool operator!=(const _Self& x) const { return !operator==(x); }
inline _NodeType* operator*() const { return (_NodeType*)(*oi)->getSink(); }
- inline _NodeType* operator->() const { return operator*(); }
+ inline _NodeType* operator->() const { return operator*(); }
inline _EdgeType* getEdge() const { return *(oi); }
typedef SGPredIterator<const SchedGraphNode, const SchedGraphEdge,SchedGraphNode::const_iterator>
sg_pred_const_iterator;
-inline sg_pred_iterator pred_begin( SchedGraphNode *N) {
+inline sg_pred_iterator pred_begin(SchedGraphNode *N) {
return sg_pred_iterator(N->beginInEdges());
}
-inline sg_pred_iterator pred_end( SchedGraphNode *N) {
+inline sg_pred_iterator pred_end(SchedGraphNode *N) {
return sg_pred_iterator(N->endInEdges());
}
inline sg_pred_const_iterator pred_begin(const SchedGraphNode *N) {
return sg_pred_const_iterator(N->beginInEdges());
}
-inline sg_pred_const_iterator pred_end( const SchedGraphNode *N) {
+inline sg_pred_const_iterator pred_end(const SchedGraphNode *N) {
return sg_pred_const_iterator(N->endInEdges());
}
typedef SGSuccIterator<const SchedGraphNode, const SchedGraphEdge,SchedGraphNode::const_iterator>
sg_succ_const_iterator;
-inline sg_succ_iterator succ_begin( SchedGraphNode *N) {
+inline sg_succ_iterator succ_begin(SchedGraphNode *N) {
return sg_succ_iterator(N->beginOutEdges());
}
-inline sg_succ_iterator succ_end( SchedGraphNode *N) {
+inline sg_succ_iterator succ_end(SchedGraphNode *N) {
return sg_succ_iterator(N->endOutEdges());
}
inline sg_succ_const_iterator succ_begin(const SchedGraphNode *N) {
return sg_succ_const_iterator(N->beginOutEdges());
}
-inline sg_succ_const_iterator succ_end( const SchedGraphNode *N) {
+inline sg_succ_const_iterator succ_end(const SchedGraphNode *N) {
return sg_succ_const_iterator(N->endOutEdges());
}
}
};
-
-std::ostream &operator<<(std::ostream& os, const SchedGraphEdge& edge);
-std::ostream &operator<<(std::ostream &os, const SchedGraphNode& node);
-
#endif
+//===- SchedGraphCommon.cpp - Scheduling Graphs Base Class- ---------------===//
+//
+// Scheduling graph base class that contains common information for SchedGraph
+// and ModuloSchedGraph scheduling graphs.
+//
+//===----------------------------------------------------------------------===//
+
#include "llvm/CodeGen/SchedGraphCommon.h"
#include "Support/STLExtras.h"
class SchedGraphCommon;
-//
+//
// class SchedGraphEdge
//
-
-/*ctor*/
SchedGraphEdge::SchedGraphEdge(SchedGraphNodeCommon* _src,
SchedGraphNodeCommon* _sink,
SchedGraphEdgeDepType _depType,
unsigned int _depOrderType,
int _minDelay)
- : src(_src),
- sink(_sink),
- depType(_depType),
- depOrderType(_depOrderType),
- minDelay((_minDelay >= 0)? _minDelay : _src->getLatency()),
- val(NULL)
-{
+ : src(_src), sink(_sink), depType(_depType), depOrderType(_depOrderType),
+ minDelay((_minDelay >= 0)? _minDelay : _src->getLatency()), val(NULL) {
+
iteDiff=0;
assert(src != sink && "Self-loop in scheduling graph!");
src->addOutEdge(this);
sink->addInEdge(this);
}
-
-/*ctor*/
SchedGraphEdge::SchedGraphEdge(SchedGraphNodeCommon* _src,
SchedGraphNodeCommon* _sink,
const Value* _val,
unsigned int _depOrderType,
int _minDelay)
- : src(_src),
- sink(_sink),
- depType(ValueDep),
- depOrderType(_depOrderType),
- minDelay((_minDelay >= 0)? _minDelay : _src->getLatency()),
- val(_val)
-{
+ : src(_src), sink(_sink), depType(ValueDep), depOrderType(_depOrderType),
+ minDelay((_minDelay >= 0)? _minDelay : _src->getLatency()), val(_val) {
iteDiff=0;
assert(src != sink && "Self-loop in scheduling graph!");
src->addOutEdge(this);
sink->addInEdge(this);
}
-
-/*ctor*/
SchedGraphEdge::SchedGraphEdge(SchedGraphNodeCommon* _src,
SchedGraphNodeCommon* _sink,
unsigned int _regNum,
unsigned int _depOrderType,
int _minDelay)
- : src(_src),
- sink(_sink),
- depType(MachineRegister),
+ : src(_src), sink(_sink), depType(MachineRegister),
depOrderType(_depOrderType),
minDelay((_minDelay >= 0)? _minDelay : _src->getLatency()),
- machineRegNum(_regNum)
-{
+ machineRegNum(_regNum) {
iteDiff=0;
assert(src != sink && "Self-loop in scheduling graph!");
src->addOutEdge(this);
sink->addInEdge(this);
}
-
-/*ctor*/
SchedGraphEdge::SchedGraphEdge(SchedGraphNodeCommon* _src,
SchedGraphNodeCommon* _sink,
ResourceId _resourceId,
int _minDelay)
- : src(_src),
- sink(_sink),
- depType(MachineResource),
- depOrderType(NonDataDep),
+ : src(_src), sink(_sink), depType(MachineResource), depOrderType(NonDataDep),
minDelay((_minDelay >= 0)? _minDelay : _src->getLatency()),
- resourceId(_resourceId)
-{
+ resourceId(_resourceId) {
iteDiff=0;
assert(src != sink && "Self-loop in scheduling graph!");
src->addOutEdge(this);
sink->addInEdge(this);
}
-/*dtor*/
-SchedGraphEdge::~SchedGraphEdge()
-{
-}
-
-void SchedGraphEdge::dump(int indent) const {
- std::cerr << std::string(indent*2, ' ') << *this;
-}
-/*ctor*/
-
-SchedGraphNodeCommon::SchedGraphNodeCommon(unsigned _nodeId)
- :ID(_nodeId),
- latency(0){
-
+void SchedGraphEdge::dump(int indent) const {
+ std::cerr << std::string(indent*2, ' ') << *this;
}
/*dtor*/
deleter<SchedGraphEdge>);
}
-
-void SchedGraphNodeCommon::dump(int indent) const {
- std::cerr << std::string(indent*2, ' ') << *this;
-}
-
-
-inline void
-SchedGraphNodeCommon::addInEdge(SchedGraphEdge* edge)
-{
- inEdges.push_back(edge);
-}
-
-
-inline void
-SchedGraphNodeCommon::addOutEdge(SchedGraphEdge* edge)
-{
- outEdges.push_back(edge);
-}
-
-inline void
-SchedGraphNodeCommon::removeInEdge(const SchedGraphEdge* edge)
-{
+void SchedGraphNodeCommon::removeInEdge(const SchedGraphEdge* edge) {
assert(edge->getSink() == this);
for (iterator I = beginInEdges(); I != endInEdges(); ++I)
- if ((*I) == edge)
- {
- inEdges.erase(I);
- break;
- }
+ if ((*I) == edge) {
+ inEdges.erase(I);
+ break;
+ }
}
-inline void
-SchedGraphNodeCommon::removeOutEdge(const SchedGraphEdge* edge)
-{
+void SchedGraphNodeCommon::removeOutEdge(const SchedGraphEdge* edge) {
assert(edge->getSrc() == this);
for (iterator I = beginOutEdges(); I != endOutEdges(); ++I)
- if ((*I) == edge)
- {
- outEdges.erase(I);
- break;
- }
+ if ((*I) == edge) {
+ outEdges.erase(I);
+ break;
+ }
}
-
-//class SchedGraphCommon
-
-/*ctor*/
-SchedGraphCommon::SchedGraphCommon()
-{
+void SchedGraphNodeCommon::dump(int indent) const {
+ std::cerr << std::string(indent*2, ' ') << *this;
}
+//class SchedGraphCommon
-/*dtor*/
-SchedGraphCommon::~SchedGraphCommon()
-{
-
+SchedGraphCommon::~SchedGraphCommon() {
delete graphRoot;
delete graphLeaf;
}
-void
-SchedGraphCommon::eraseIncomingEdges(SchedGraphNodeCommon* node, bool addDummyEdges)
-{
+void SchedGraphCommon::eraseIncomingEdges(SchedGraphNodeCommon* node,
+ bool addDummyEdges) {
// Delete and disconnect all in-edges for the node
for (SchedGraphNodeCommon::iterator I = node->beginInEdges();
- I != node->endInEdges(); ++I)
- {
- SchedGraphNodeCommon* srcNode = (*I)->getSrc();
- srcNode->removeOutEdge(*I);
- delete *I;
+ I != node->endInEdges(); ++I) {
+ SchedGraphNodeCommon* srcNode = (*I)->getSrc();
+ srcNode->removeOutEdge(*I);
+ delete *I;
+
+ if (addDummyEdges && srcNode != getRoot() &&
+ srcNode->beginOutEdges() == srcNode->endOutEdges()) {
- if (addDummyEdges &&
- srcNode != getRoot() &&
- srcNode->beginOutEdges() == srcNode->endOutEdges())
- { // srcNode has no more out edges, so add an edge to dummy EXIT node
- assert(node != getLeaf() && "Adding edge that was just removed?");
- (void) new SchedGraphEdge(srcNode, getLeaf(),
- SchedGraphEdge::CtrlDep, SchedGraphEdge::NonDataDep, 0);
- }
+ // srcNode has no more out edges, so add an edge to dummy EXIT node
+ assert(node != getLeaf() && "Adding edge that was just removed?");
+ (void) new SchedGraphEdge(srcNode, getLeaf(),
+ SchedGraphEdge::CtrlDep,
+ SchedGraphEdge::NonDataDep, 0);
}
+ }
node->inEdges.clear();
}
-void
-SchedGraphCommon::eraseOutgoingEdges(SchedGraphNodeCommon* node, bool addDummyEdges)
-{
+void SchedGraphCommon::eraseOutgoingEdges(SchedGraphNodeCommon* node,
+ bool addDummyEdges) {
// Delete and disconnect all out-edges for the node
for (SchedGraphNodeCommon::iterator I = node->beginOutEdges();
- I != node->endOutEdges(); ++I)
- {
- SchedGraphNodeCommon* sinkNode = (*I)->getSink();
- sinkNode->removeInEdge(*I);
- delete *I;
+ I != node->endOutEdges(); ++I) {
+ SchedGraphNodeCommon* sinkNode = (*I)->getSink();
+ sinkNode->removeInEdge(*I);
+ delete *I;
+
+ if (addDummyEdges &&
+ sinkNode != getLeaf() &&
+ sinkNode->beginInEdges() == sinkNode->endInEdges()) {
- if (addDummyEdges &&
- sinkNode != getLeaf() &&
- sinkNode->beginInEdges() == sinkNode->endInEdges())
- { //sinkNode has no more in edges, so add an edge from dummy ENTRY node
- assert(node != getRoot() && "Adding edge that was just removed?");
- (void) new SchedGraphEdge(getRoot(), sinkNode,
- SchedGraphEdge::CtrlDep, SchedGraphEdge::NonDataDep, 0);
- }
+ //sinkNode has no more in edges, so add an edge from dummy ENTRY node
+ assert(node != getRoot() && "Adding edge that was just removed?");
+ (void) new SchedGraphEdge(getRoot(), sinkNode,
+ SchedGraphEdge::CtrlDep,
+ SchedGraphEdge::NonDataDep, 0);
}
+ }
node->outEdges.clear();
}
-void
-SchedGraphCommon::eraseIncidentEdges(SchedGraphNodeCommon* node, bool addDummyEdges)
-{
+void SchedGraphCommon::eraseIncidentEdges(SchedGraphNodeCommon* node,
+ bool addDummyEdges) {
this->eraseIncomingEdges(node, addDummyEdges);
this->eraseOutgoingEdges(node, addDummyEdges);
}
-std::ostream &operator<<(std::ostream &os, const SchedGraphNodeCommon& node)
-{
-
- return os;
-}
projects / oota-llvm.git / commitdiff