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| author | Evan Cheng <evan.cheng@apple.com> | 2008-01-09 23:01:55 +0000 |
|---|---|---|
| committer | Evan Cheng <evan.cheng@apple.com> | 2008-01-09 23:01:55 +0000 |
| commit | 19107563af7568713193c60be24503446556bff2 (patch) | |
| tree | 64bab13a16c649421a1dbc05e312126af8a9c4fd /lib/CodeGen/SelectionDAG/ScheduleDAGRRList.cpp | |
| parent | ec1213fbbba161401e22bd41005a3b1a39008807 (diff) | |
| download | external_llvm-19107563af7568713193c60be24503446556bff2.zip external_llvm-19107563af7568713193c60be24503446556bff2.tar.gz external_llvm-19107563af7568713193c60be24503446556bff2.tar.bz2 | |
Special copy SUnit's do not have SDNode's.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45787 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/SelectionDAG/ScheduleDAGRRList.cpp')
| -rw-r--r-- | lib/CodeGen/SelectionDAG/ScheduleDAGRRList.cpp | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/lib/CodeGen/SelectionDAG/ScheduleDAGRRList.cpp b/lib/CodeGen/SelectionDAG/ScheduleDAGRRList.cpp index 4cd4577..05ba46d 100644 --- a/lib/CodeGen/SelectionDAG/ScheduleDAGRRList.cpp +++ b/lib/CodeGen/SelectionDAG/ScheduleDAGRRList.cpp @@ -1208,13 +1208,13 @@ static unsigned calcMaxScratches(const SUnit *SU) { for (SUnit::const_pred_iterator I = SU->Preds.begin(), E = SU->Preds.end(); I != E; ++I) { if (I->isCtrl) continue; // ignore chain preds - if (I->Dep->Node->getOpcode() != ISD::CopyFromReg) + if (!I->Dep->Node || I->Dep->Node->getOpcode() != ISD::CopyFromReg) Scratches++; } for (SUnit::const_succ_iterator I = SU->Succs.begin(), E = SU->Succs.end(); I != E; ++I) { if (I->isCtrl) continue; // ignore chain succs - if (I->Dep->Node->getOpcode() != ISD::CopyToReg) + if (!I->Dep->Node || I->Dep->Node->getOpcode() != ISD::CopyToReg) Scratches += 10; } return Scratches; |