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Reformatted code to match the prevalent LLVM style; fit code into 80 columns. 

llvm-svn: 7586
This commit is contained in:
Misha Brukman 2003-08-05 00:02:06 +00:00
parent 8f7304a32d
commit f7586ceeb2
1 changed files with 61 additions and 71 deletions
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132
llvm/lib/Target/TargetSchedInfo.cpp
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@ -23,15 +23,14 @@ RUConflict(const std::vector<resourceId_t>& fromRVec,
unsigned fN = fromRVec.size(), tN = toRVec.size();
unsigned fi = 0, ti = 0;
while (fi < fN && ti < tN)
{
if (fromRVec[fi] < toRVec[ti])
++fi;
else if (toRVec[ti] < fromRVec[fi])
++ti;
else
return true;
}
while (fi < fN && ti < tN) {
if (fromRVec[fi] < toRVec[ti])
++fi;
else if (toRVec[ti] < fromRVec[fi])
++ti;
else
return true;
}
return false;
}
@ -45,24 +44,21 @@ ComputeMinGap(const InstrRUsage &fromRU,
if (fromRU.numBubbles > 0)
minGap = fromRU.numBubbles;
if (minGap < fromRU.numCycles)
{
// only need to check from cycle `minGap' onwards
for (cycles_t gap=minGap; gap <= fromRU.numCycles-1; gap++)
{
// check if instr. #2 can start executing `gap' cycles after #1
// by checking for resource conflicts in each overlapping cycle
cycles_t numOverlap =std::min(fromRU.numCycles - gap, toRU.numCycles);
for (cycles_t c = 0; c <= numOverlap-1; c++)
if (RUConflict(fromRU.resourcesByCycle[gap + c],
toRU.resourcesByCycle[c]))
{
// conflict found so minGap must be more than `gap'
minGap = gap+1;
break;
}
}
if (minGap < fromRU.numCycles) {
// only need to check from cycle `minGap' onwards
for (cycles_t gap=minGap; gap <= fromRU.numCycles-1; gap++) {
// check if instr. #2 can start executing `gap' cycles after #1
// by checking for resource conflicts in each overlapping cycle
cycles_t numOverlap =std::min(fromRU.numCycles - gap, toRU.numCycles);
for (cycles_t c = 0; c <= numOverlap-1; c++)
if (RUConflict(fromRU.resourcesByCycle[gap + c],
toRU.resourcesByCycle[c])) {
// conflict found so minGap must be more than `gap'
minGap = gap+1;
break;
}
}
}
return minGap;
}
@ -157,12 +153,11 @@ TargetSchedInfo::computeIssueGaps(const std::vector<InstrRUsage>&
//
int classPairGaps[numSchedClasses][numSchedClasses];
for (InstrSchedClass fromSC=0; fromSC < numSchedClasses; fromSC++)
for (InstrSchedClass toSC=0; toSC < numSchedClasses; toSC++)
{
int classPairGap = ComputeMinGap(instrRUForClasses[fromSC],
instrRUForClasses[toSC]);
classPairGaps[fromSC][toSC] = classPairGap;
}
for (InstrSchedClass toSC=0; toSC < numSchedClasses; toSC++) {
int classPairGap = ComputeMinGap(instrRUForClasses[fromSC],
instrRUForClasses[toSC]);
classPairGaps[fromSC][toSC] = classPairGap;
}
// Now, for each pair of instructions, use the class pair gap if both
// instructions have identical resource usage as their respective classes.
@ -171,20 +166,18 @@ TargetSchedInfo::computeIssueGaps(const std::vector<InstrRUsage>&
longestIssueConflict = 0;
for (MachineOpCode fromOp=0; fromOp < numOpCodes; fromOp++)
for (MachineOpCode toOp=0; toOp < numOpCodes; toOp++)
{
int instrPairGap =
(instrRUsages[fromOp].sameAsClass && instrRUsages[toOp].sameAsClass)
? classPairGaps[getSchedClass(fromOp)][getSchedClass(toOp)]
: ComputeMinGap(instrRUsages[fromOp], instrRUsages[toOp]);
for (MachineOpCode toOp=0; toOp < numOpCodes; toOp++) {
int instrPairGap =
(instrRUsages[fromOp].sameAsClass && instrRUsages[toOp].sameAsClass)
? classPairGaps[getSchedClass(fromOp)][getSchedClass(toOp)]
: ComputeMinGap(instrRUsages[fromOp], instrRUsages[toOp]);
if (instrPairGap > 0)
{
this->setGap(instrPairGap, fromOp, toOp);
conflictLists[fromOp].push_back(toOp);
longestIssueConflict=std::max(longestIssueConflict, instrPairGap);
}
if (instrPairGap > 0) {
this->setGap(instrPairGap, fromOp, toOp);
conflictLists[fromOp].push_back(toOp);
longestIssueConflict=std::max(longestIssueConflict, instrPairGap);
}
}
}
@ -194,12 +187,11 @@ void InstrRUsage::setTo(const InstrClassRUsage& classRU) {
breaksGroup = classRU.breaksGroup;
numBubbles = classRU.numBubbles;
for (unsigned i=0; i < classRU.numSlots; i++)
{
unsigned slot = classRU.feasibleSlots[i];
assert(slot < feasibleSlots.size() && "Invalid slot specified!");
this->feasibleSlots[slot] = true;
}
for (unsigned i=0; i < classRU.numSlots; i++) {
unsigned slot = classRU.feasibleSlots[i];
assert(slot < feasibleSlots.size() && "Invalid slot specified!");
this->feasibleSlots[slot] = true;
}
numCycles = classRU.totCycles;
resourcesByCycle.resize(this->numCycles);
@ -209,10 +201,10 @@ void InstrRUsage::setTo(const InstrClassRUsage& classRU) {
c < NC; c++)
this->resourcesByCycle[c].push_back(classRU.V[i].resourceId);
// Sort each resource usage vector by resourceId_t to speed up conflict checking
// Sort each resource usage vector by resourceId_t to speed up conflict
// checking
for (unsigned i=0; i < this->resourcesByCycle.size(); i++)
sort(resourcesByCycle[i].begin(), resourcesByCycle[i].end());
}
// Add the extra resource usage requirements specified in the delta.
@ -226,29 +218,27 @@ void InstrRUsage::addUsageDelta(const InstrRUsageDelta &delta) {
// resize the resources vector if more cycles are specified
unsigned maxCycles = this->numCycles;
maxCycles = std::max(maxCycles, delta.startCycle + abs(NC) - 1);
if (maxCycles > this->numCycles)
{
this->resourcesByCycle.resize(maxCycles);
this->numCycles = maxCycles;
}
if (maxCycles > this->numCycles) {
this->resourcesByCycle.resize(maxCycles);
this->numCycles = maxCycles;
}
if (NC >= 0)
for (unsigned c=delta.startCycle, last=c+NC-1; c <= last; c++)
this->resourcesByCycle[c].push_back(delta.resourceId);
else
// Remove the resource from all NC cycles.
for (unsigned c=delta.startCycle, last=(c-NC)-1; c <= last; c++)
{
// Look for the resource backwards so we remove the last entry
// for that resource in each cycle.
std::vector<resourceId_t>& rvec = this->resourcesByCycle[c];
int r;
for (r = rvec.size() - 1; r >= 0; r--)
if (rvec[r] == delta.resourceId)
{// found last entry for the resource
rvec.erase(rvec.begin() + r);
break;
}
assert(r >= 0 && "Resource to remove was unused in cycle c!");
}
for (unsigned c=delta.startCycle, last=(c-NC)-1; c <= last; c++) {
// Look for the resource backwards so we remove the last entry
// for that resource in each cycle.
std::vector<resourceId_t>& rvec = this->resourcesByCycle[c];
int r;
for (r = rvec.size() - 1; r >= 0; r--)
if (rvec[r] == delta.resourceId) {
// found last entry for the resource
rvec.erase(rvec.begin() + r);
break;
}
assert(r >= 0 && "Resource to remove was unused in cycle c!");
}
}