diff options
| author | David Goodwin <david_goodwin@apple.com> | 2009-11-12 19:08:21 +0000 |
|---|---|---|
| committer | David Goodwin <david_goodwin@apple.com> | 2009-11-12 19:08:21 +0000 |
| commit | 12dd99dc308150a6beff32aafc824e1d6fec1139 (patch) | |
| tree | eb3d33bed5ca1f1a02cf1b69a12e4748ed96a268 /lib/CodeGen/ScheduleDAG.cpp | |
| parent | 70d75ca3107ce05bc30ad3511aa669b9fab5eb90 (diff) | |
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/ScheduleDAG.cpp')
| -rw-r--r-- | lib/CodeGen/ScheduleDAG.cpp | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/lib/CodeGen/ScheduleDAG.cpp b/lib/CodeGen/ScheduleDAG.cpp index 1363a92fed..6b27db263b 100644 --- a/lib/CodeGen/ScheduleDAG.cpp +++ b/lib/CodeGen/ScheduleDAG.cpp @@ -214,7 +214,10 @@ void SUnit::ComputeDepth(bool IgnoreAntiDep) { unsigned MaxPredDepth = 0; for (SUnit::const_pred_iterator I = Cur->Preds.begin(), E = Cur->Preds.end(); I != E; ++I) { - if (IgnoreAntiDep && (I->getKind() == SDep::Anti)) continue; + if (IgnoreAntiDep && + ((I->getKind() == SDep::Anti) || (I->getKind() == SDep::Output))) + continue; + SUnit *PredSU = I->getSUnit(); if (PredSU->isDepthCurrent) MaxPredDepth = std::max(MaxPredDepth, @@ -248,7 +251,10 @@ void SUnit::ComputeHeight(bool IgnoreAntiDep) { unsigned MaxSuccHeight = 0; for (SUnit::const_succ_iterator I = Cur->Succs.begin(), E = Cur->Succs.end(); I != E; ++I) { - if (IgnoreAntiDep && (I->getKind() == SDep::Anti)) continue; + if (IgnoreAntiDep && + ((I->getKind() == SDep::Anti) || (I->getKind() == SDep::Output))) + continue; + SUnit *SuccSU = I->getSUnit(); if (SuccSU->isHeightCurrent) MaxSuccHeight = std::max(MaxSuccHeight, |