diff options
Diffstat (limited to 'lib/CodeGen/ScheduleDAGInstrs.cpp')
| -rw-r--r-- | lib/CodeGen/ScheduleDAGInstrs.cpp | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/lib/CodeGen/ScheduleDAGInstrs.cpp b/lib/CodeGen/ScheduleDAGInstrs.cpp index 6070ff6..f8b219d 100644 --- a/lib/CodeGen/ScheduleDAGInstrs.cpp +++ b/lib/CodeGen/ScheduleDAGInstrs.cpp @@ -367,6 +367,7 @@ void ScheduleDAGInstrs::BuildSchedGraph(AliasAnalysis *AA) { for (unsigned i = 0, e = I->second.size(); i != e; ++i) I->second[i]->addPred(SDep(SU, SDep::Order, TrueMemOrderLatency)); I->second.clear(); + I->second.push_back(SU); } // See if it is known to just have a single memory reference. MachineInstr *ChainMI = Chain->getInstr(); @@ -413,7 +414,7 @@ void ScheduleDAGInstrs::BuildSchedGraph(AliasAnalysis *AA) { if (Chain) Chain->addPred(SDep(SU, SDep::Order, /*Latency=*/0)); } - } else if (MayAlias) { + } else { // Treat all other stores conservatively. goto new_chain; } @@ -439,7 +440,7 @@ void ScheduleDAGInstrs::BuildSchedGraph(AliasAnalysis *AA) { // Treat volatile loads conservatively. Note that this includes // cases where memoperand information is unavailable. goto new_chain; - } else if (MayAlias) { + } else { // A "MayAlias" load. Depend on the general chain, as well as on // all stores. In the absense of MachineMemOperand information, // we can't even assume that the load doesn't alias well-behaved |
