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author | Roman Divacky <rdivacky@FreeBSD.org> | 2009-11-05 17:17:44 +0000 |
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committer | Roman Divacky <rdivacky@FreeBSD.org> | 2009-11-05 17:17:44 +0000 |
commit | 72cc50852bec44580ee7efe1aa2076273008a6ae (patch) | |
tree | adc0bc5dc9cb37579ee90d3c0f08c98c0711bebe /lib/CodeGen/ScheduleDAGInstrs.cpp | |
parent | fc25e9aa52455d7aa75f3237afd79b8d89548bb5 (diff) | |
download | src-test2-72cc50852bec44580ee7efe1aa2076273008a6ae.tar.gz src-test2-72cc50852bec44580ee7efe1aa2076273008a6ae.zip |
Notes
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 6070ff6ed197..f8b219d64133 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 |