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author | David Goodwin <david_goodwin@apple.com> | 2009-11-12 19:08:21 +0000 |
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committer | David Goodwin <david_goodwin@apple.com> | 2009-11-12 19:08:21 +0000 |
commit | 12dd99dc308150a6beff32aafc824e1d6fec1139 (patch) | |
tree | eb3d33bed5ca1f1a02cf1b69a12e4748ed96a268 /lib/CodeGen/PostRASchedulerList.cpp | |
parent | 70d75ca3107ce05bc30ad3511aa669b9fab5eb90 (diff) | |
download | llvm-12dd99dc308150a6beff32aafc824e1d6fec1139.tar.gz llvm-12dd99dc308150a6beff32aafc824e1d6fec1139.tar.bz2 llvm-12dd99dc308150a6beff32aafc824e1d6fec1139.tar.xz |
Rename registers to break output dependencies in addition to anti-dependencies.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@87015 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/PostRASchedulerList.cpp')
-rw-r--r-- | lib/CodeGen/PostRASchedulerList.cpp | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/lib/CodeGen/PostRASchedulerList.cpp b/lib/CodeGen/PostRASchedulerList.cpp index b5729bbed5..a29f349b0b 100644 --- a/lib/CodeGen/PostRASchedulerList.cpp +++ b/lib/CodeGen/PostRASchedulerList.cpp @@ -603,7 +603,9 @@ void SchedulePostRATDList::ReleaseSucc(SUnit *SU, SDep *SuccEdge, void SchedulePostRATDList::ReleaseSuccessors(SUnit *SU, bool IgnoreAntiDep) { for (SUnit::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; ReleaseSucc(SU, &*I, IgnoreAntiDep); } } @@ -658,7 +660,7 @@ void SchedulePostRATDList::ListScheduleTopDown( available = true; for (SUnit::const_pred_iterator I = SUnits[i].Preds.begin(), E = SUnits[i].Preds.end(); I != E; ++I) { - if (I->getKind() != SDep::Anti) { + if ((I->getKind() != SDep::Anti) && (I->getKind() != SDep::Output)) { available = false; } else { SUnits[i].NumPredsLeft -= 1; @@ -737,7 +739,9 @@ void SchedulePostRATDList::ListScheduleTopDown( AntiDepBreaker::AntiDepRegVector AntiDepRegs; for (SUnit::const_pred_iterator I = FoundSUnit->Preds.begin(), E = FoundSUnit->Preds.end(); I != E; ++I) { - if ((I->getKind() == SDep::Anti) && !I->getSUnit()->isScheduled) + if (((I->getKind() == SDep::Anti) || + (I->getKind() == SDep::Output)) && + !I->getSUnit()->isScheduled) AntiDepRegs.push_back(I->getReg()); } |