misched: obvious iterator update fixes for bottom-up.
llvm-svn: 153160
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de670c0304
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@ -369,8 +369,12 @@ void ScheduleDAGMI::releasePredecessors(SUnit *SU) {
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void ScheduleDAGMI::moveInstruction(MachineInstr *MI,
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MachineBasicBlock::iterator InsertPos) {
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// Fix RegionBegin if the first instruction moves down.
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if (&*RegionBegin == MI)
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RegionBegin = llvm::next(RegionBegin);
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BB->splice(InsertPos, BB, MI);
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LIS->handleMove(MI);
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// Fix RegionBegin if another instruction moves above the first instruction.
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if (RegionBegin == InsertPos)
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RegionBegin = MI;
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}
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@ -440,6 +444,8 @@ void ScheduleDAGMI::schedule() {
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if (&*llvm::prior(CurrentBottom) == MI)
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--CurrentBottom;
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else {
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if (&*CurrentTop == MI)
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CurrentTop = llvm::next(CurrentTop);
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moveInstruction(MI, CurrentBottom);
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CurrentBottom = MI;
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}
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