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| author | Vikram S. Adve <vadve@cs.uiuc.edu> | 2002-10-13 00:40:37 +0000 |
|---|---|---|
| committer | Vikram S. Adve <vadve@cs.uiuc.edu> | 2002-10-13 00:40:37 +0000 |
| commit | 9e5eb463624b2ba24771015f990084fe9ea5ff1f (patch) | |
| tree | ef455273acbcc9b53e74bc512fbd6b3f8668ac66 /llvm/lib/CodeGen/InstrSched | |
| parent | f8c6e3db552bb27c1c5eaaab4b1a4ac306f05015 (diff) | |
| download | bcm5719-llvm-9e5eb463624b2ba24771015f990084fe9ea5ff1f.tar.gz bcm5719-llvm-9e5eb463624b2ba24771015f990084fe9ea5ff1f.zip | |
Use vectors instead of hash_maps for issueGaps and conflictLists.
These hash lookups were a major sink of time because they happen so often!
Also, add option to disable scheduling.
llvm-svn: 4138
Diffstat (limited to 'llvm/lib/CodeGen/InstrSched')
| -rw-r--r-- | llvm/lib/CodeGen/InstrSched/InstrScheduling.cpp | 24 |
1 files changed, 9 insertions, 15 deletions
diff --git a/llvm/lib/CodeGen/InstrSched/InstrScheduling.cpp b/llvm/lib/CodeGen/InstrSched/InstrScheduling.cpp index 97360c3dd08..a985680da3d 100644 --- a/llvm/lib/CodeGen/InstrSched/InstrScheduling.cpp +++ b/llvm/lib/CodeGen/InstrSched/InstrScheduling.cpp @@ -25,7 +25,6 @@ SDL_opt("dsched", cl::Hidden, cl::location(SchedDebugLevel), cl::desc("enable instruction scheduling debugging information"), cl::values( clEnumValN(Sched_NoDebugInfo, "n", "disable debug output"), - clEnumValN(Sched_Disable, "off", "disable instruction scheduling"), clEnumValN(Sched_PrintMachineCode, "y", "print machine code after scheduling"), clEnumValN(Sched_PrintSchedTrace, "t", "print trace of scheduling actions"), clEnumValN(Sched_PrintSchedGraphs, "g", "print scheduling graphs"), @@ -549,19 +548,17 @@ SchedulingManager::updateEarliestStartTimes(const SchedGraphNode* node, curTime + 1 + schedInfo.numBubblesAfter(node->getOpCode())); } - const vector<MachineOpCode>* + const std::vector<MachineOpCode>& conflictVec = schedInfo.getConflictList(node->getOpCode()); - if (conflictVec != NULL) - for (unsigned i=0; i < conflictVec->size(); i++) - { - MachineOpCode toOp = (*conflictVec)[i]; - cycles_t est = schedTime + schedInfo.getMinIssueGap(node->getOpCode(), - toOp); - assert(toOp < (int) nextEarliestStartTime.size()); - if (nextEarliestStartTime[toOp] < est) - nextEarliestStartTime[toOp] = est; - } + for (unsigned i=0; i < conflictVec.size(); i++) + { + MachineOpCode toOp = conflictVec[i]; + cycles_t est=schedTime + schedInfo.getMinIssueGap(node->getOpCode(),toOp); + assert(toOp < (int) nextEarliestStartTime.size()); + if (nextEarliestStartTime[toOp] < est) + nextEarliestStartTime[toOp] = est; + } } //************************* Internal Functions *****************************/ @@ -1511,9 +1508,6 @@ namespace { bool InstructionSchedulingWithSSA::runOnFunction(Function &F) { - if (SchedDebugLevel == Sched_Disable) - return false; - SchedGraphSet graphSet(&F, target); if (SchedDebugLevel >= Sched_PrintSchedGraphs) |
