diff options
Diffstat (limited to 'lib/CodeGen/LiveIntervalAnalysis.cpp')
| -rw-r--r-- | lib/CodeGen/LiveIntervalAnalysis.cpp | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/lib/CodeGen/LiveIntervalAnalysis.cpp b/lib/CodeGen/LiveIntervalAnalysis.cpp index ebf9dcd2dd..5fa725724a 100644 --- a/lib/CodeGen/LiveIntervalAnalysis.cpp +++ b/lib/CodeGen/LiveIntervalAnalysis.cpp @@ -205,12 +205,15 @@ std::vector<LiveInterval*> LiveIntervals::addIntervalsForSpills( const TargetRegisterClass* rc = mf_->getSSARegMap()->getRegClass(li.reg); for (LiveInterval::Ranges::const_iterator - i = li.ranges.begin(), e = li.ranges.end(); i != e; ++i) { + i = li.ranges.begin(), e = li.ranges.end(); i != e; ++i) { unsigned index = getBaseIndex(i->first); unsigned end = getBaseIndex(i->second-1) + InstrSlots::NUM; - for (; index < end; index += InstrSlots::NUM) { + for (; index != end; index += InstrSlots::NUM) { // skip deleted instructions - while (!getInstructionFromIndex(index)) index += InstrSlots::NUM; + while (index != end && !getInstructionFromIndex(index)) + index += InstrSlots::NUM; + if (index == end) break; + MachineBasicBlock::iterator mi = getInstructionFromIndex(index); for_operand: |