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Minor changes.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19660 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Tanya Lattner 2005-01-18 04:15:41 +00:00
parent b71f8fc99d
commit 0111474bde
1 changed files with 22 additions and 12 deletions
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34
lib/Target/SparcV9/ModuloScheduling/ModuloScheduling.cpp
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@ -169,7 +169,7 @@ bool ModuloSchedulingPass::runOnFunction(Function &F) {
int RecMII = calculateRecMII(MSG, ResMII);
//Our starting initiation interval is the maximum of RecMII and ResMII
II = std::max(RecMII, ResMII);
/*II = std::max(RecMII, ResMII);
//Print out II, RecMII, and ResMII
DEBUG(std::cerr << "II starts out as " << II << " ( RecMII=" << RecMII << " and ResMII=" << ResMII << ")\n");
@ -227,7 +227,7 @@ bool ModuloSchedulingPass::runOnFunction(Function &F) {
}
else
DEBUG(std::cerr << "Max stage is 0, so no change in loop or reached cap\n");
*/
//Clear out our maps for the next basic block that is processed
nodeToAttributesMap.clear();
partialOrder.clear();
@ -681,6 +681,8 @@ void ModuloSchedulingPass::addReccurrence(std::vector<MSchedGraphNode*> &recurre
void ModuloSchedulingPass::findAllReccurrences(MSchedGraphNode *node,
std::vector<MSchedGraphNode*> &visitedNodes,
int II) {
if(node)
DEBUG(std::cerr << *(node->getInst()) << "\n");
if(std::find(visitedNodes.begin(), visitedNodes.end(), node) != visitedNodes.end()) {
std::vector<MSchedGraphNode*> recurrence;
@ -741,10 +743,13 @@ void ModuloSchedulingPass::findAllReccurrences(MSchedGraphNode *node,
return;
}
unsigned count = 0;
for(MSchedGraphNode::succ_iterator I = node->succ_begin(), E = node->succ_end(); I != E; ++I) {
visitedNodes.push_back(node);
//if(!edgesToIgnore.count(std::make_pair(node, count)))
findAllReccurrences(*I, visitedNodes, II);
visitedNodes.pop_back();
count++;
}
}
@ -1178,24 +1183,24 @@ bool ModuloSchedulingPass::computeSchedule() {
for(std::vector<MSchedGraphNode*>::iterator schedNode = nodesByCycle->second.begin(), SNE = nodesByCycle->second.end(); schedNode != SNE; ++schedNode) {
if((*I)->isPredecessor(*schedNode)) {
if(!ignoreEdge(*schedNode, *I)) {
//if(!ignoreEdge(*schedNode, *I)) {
int diff = (*I)->getInEdge(*schedNode).getIteDiff();
int ES_Temp = nodesByCycle->first + (*schedNode)->getLatency() - diff * II;
DEBUG(std::cerr << "Diff: " << diff << " Cycle: " << nodesByCycle->first << "\n");
DEBUG(std::cerr << "Temp EarlyStart: " << ES_Temp << " Prev EarlyStart: " << EarlyStart << "\n");
EarlyStart = std::max(EarlyStart, ES_Temp);
hasPred = true;
}
//}
}
if((*I)->isSuccessor(*schedNode)) {
if(!ignoreEdge(*I,*schedNode)) {
//if(!ignoreEdge(*I,*schedNode)) {
int diff = (*schedNode)->getInEdge(*I).getIteDiff();
int LS_Temp = nodesByCycle->first - (*I)->getLatency() + diff * II;
DEBUG(std::cerr << "Diff: " << diff << " Cycle: " << nodesByCycle->first << "\n");
DEBUG(std::cerr << "Temp LateStart: " << LS_Temp << " Prev LateStart: " << LateStart << "\n");
LateStart = std::min(LateStart, LS_Temp);
hasSucc = true;
}
//}
}
}
}
@ -1209,19 +1214,19 @@ bool ModuloSchedulingPass::computeSchedule() {
branchLS = 0;
}
else {
EarlyStart = branchES;
LateStart = branchLS;
EarlyStart = branchLS;
LateStart = branchES;
assert( (EarlyStart >= 0) && (LateStart >=0) && "EarlyStart and LateStart must be greater then 0");
--branchES;
}
hasPred = 1;
hasPred = 0;
hasSucc = 1;
}
DEBUG(std::cerr << "Has Successors: " << hasSucc << ", Has Pred: " << hasPred << "\n");
DEBUG(std::cerr << "EarlyStart: " << EarlyStart << ", LateStart: " << LateStart << "\n");
//Check if the node has no pred or successors and set Early Start to its ASAP
if(!hasSucc && !hasPred)
EarlyStart = nodeToAttributesMap.find(*I)->second.ASAP;
@ -1232,8 +1237,12 @@ bool ModuloSchedulingPass::computeSchedule() {
success = scheduleNode(*I, EarlyStart, (EarlyStart + II -1));
else if(!hasPred && hasSucc)
success = scheduleNode(*I, LateStart, (LateStart - II +1));
else if(hasPred && hasSucc)
success = scheduleNode(*I, EarlyStart, std::min(LateStart, (EarlyStart + II -1)));
else if(hasPred && hasSucc) {
if(EarlyStart > LateStart)
success = false;
else
success = scheduleNode(*I, EarlyStart, std::min(LateStart, (EarlyStart + II -1)));
}
else
success = scheduleNode(*I, EarlyStart, EarlyStart + II - 1);
@ -1555,6 +1564,7 @@ void ModuloSchedulingPass::writeKernel(BasicBlock *llvmBB, MachineBasicBlock *ma
const MachineInstr *inst = I->first->getInst();
MachineInstr *instClone = inst->clone();
branches.push_back(instClone);
continue;
}
//Clone instruction