6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2026-04-26 12:20:42 +00:00
Code Issues Projects Releases Wiki Activity

Rename registers to break output dependencies in addition to anti-dependencies.

Browse Source 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@87015 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
David Goodwin
2009-11-12 19:08:21 +00:00
parent 70d75ca310
commit 12dd99dc30
4 changed files with 30 additions and 10 deletions
Download Patch File Download Diff File Expand all files Collapse all files
lib/CodeGen/LatencyPriorityQueue.cpp
+12 -3
View File
@@ -55,7 +55,10 @@ SUnit *LatencyPriorityQueue::getSingleUnscheduledPred(SUnit *SU) {
SUnit *OnlyAvailablePred = 0;
for (SUnit::const_pred_iterator I = SU->Preds.begin(), E = SU->Preds.end();
I != E; ++I) {
if (IgnoreAntiDep && (I->getKind() == SDep::Anti)) continue;
if (IgnoreAntiDep &&
((I->getKind() == SDep::Anti) || (I->getKind() == SDep::Output)))
continue;
SUnit &Pred = *I->getSUnit();
if (!Pred.isScheduled) {
// We found an available, but not scheduled, predecessor. If it's the
@@ -75,7 +78,10 @@ void LatencyPriorityQueue::push_impl(SUnit *SU) {
unsigned NumNodesBlocking = 0;
for (SUnit::const_succ_iterator I = SU->Succs.begin(), E = SU->Succs.end();
I != E; ++I) {
if (IgnoreAntiDep && (I->getKind() == SDep::Anti)) continue;
if (IgnoreAntiDep &&
((I->getKind() == SDep::Anti) || (I->getKind() == SDep::Output)))
continue;
if (getSingleUnscheduledPred(I->getSUnit()) == SU)
++NumNodesBlocking;
}
@@ -92,7 +98,10 @@ void LatencyPriorityQueue::push_impl(SUnit *SU) {
void LatencyPriorityQueue::ScheduledNode(SUnit *SU) {
for (SUnit::const_succ_iterator I = SU->Succs.begin(), E = SU->Succs.end();
I != E; ++I) {
if (IgnoreAntiDep && (I->getKind() == SDep::Anti)) continue;
if (IgnoreAntiDep &&
((I->getKind() == SDep::Anti) || (I->getKind() == SDep::Output)))
continue;
AdjustPriorityOfUnscheduledPreds(I->getSUnit());
}
}