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Fixed a bug where I was trying to ModuloSchedule a loop with no instructions but a terminator.

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Fixed a bug in the schedule generation that was always using the start cycle.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@18123 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Tanya Lattner
2004-11-22 20:41:24 +00:00
parent 54a4d6a3cd
commit e1df212fb3
3 changed files with 32 additions and 9 deletions
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11
lib/Target/SparcV9/ModuloScheduling/MSSchedule.cpp
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@@ -54,6 +54,9 @@ bool MSSchedule::resourcesFree(MSchedGraphNode *node, int cycle) {
int currentCycle = cycle;
bool success = true;
//map for easy backtracking, resource num at a certain cycle
//std::map<int, int> backtrackMap;
//Get resource usage for this instruction
InstrRUsage rUsage = msi->getInstrRUsage(node->getInst()->getOpcode());
std::vector<std::vector<resourceId_t> > resources = rUsage.resourcesByCycle;
@@ -74,8 +77,11 @@ bool MSSchedule::resourcesFree(MSchedGraphNode *node, int cycle) {
std::map<int, int>::iterator resourceUse = resourcesForCycle->second.find(resourceNum);
if(resourceUse != resourcesForCycle->second.end()) {
//Check if there are enough of this resource and if so, increase count and move on
if(resourceUse->second < CPUResource::getCPUResource(resourceNum)->maxNumUsers)
if(resourceUse->second < CPUResource::getCPUResource(resourceNum)->maxNumUsers) {
++resourceUse->second;
//Document that we increased the usage count for this resource at this cycle
}
else {
success = false;
}
@@ -89,7 +95,8 @@ bool MSSchedule::resourcesFree(MSchedGraphNode *node, int cycle) {
//Create a new map and put in our resource
std::map<int, int> resourceMap;
resourceMap[resourceNum] = 1;
resourceNumPerCycle[cycle] = resourceMap;
resourceNumPerCycle[currentCycle] = resourceMap;
}
if(!success)
break;