diff options
Diffstat (limited to 'lib/CodeGen/TargetSchedule.cpp')
| -rw-r--r-- | lib/CodeGen/TargetSchedule.cpp | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/lib/CodeGen/TargetSchedule.cpp b/lib/CodeGen/TargetSchedule.cpp index f31f67d58c..783bfa1c1a 100644 --- a/lib/CodeGen/TargetSchedule.cpp +++ b/lib/CodeGen/TargetSchedule.cpp @@ -240,7 +240,10 @@ unsigned TargetSchedModel::computeOperandLatency( report_fatal_error(ss.str()); } #endif - return DefMI->isTransient() ? 0 : 1; + // FIXME: Automatically giving all implicit defs defaultDefLatency is + // undesirable. We should only do it for defs that are known to the MC + // desc like flags. Truly implicit defs should get 1 cycle latency. + return DefMI->isTransient() ? 0 : TII->defaultDefLatency(&SchedModel, DefMI); } unsigned TargetSchedModel::computeInstrLatency(const MachineInstr *MI) const { |