diff options
Diffstat (limited to 'lib/CodeGen/LiveIntervalAnalysis.cpp')
| -rw-r--r-- | lib/CodeGen/LiveIntervalAnalysis.cpp | 20 |
1 files changed, 9 insertions, 11 deletions
diff --git a/lib/CodeGen/LiveIntervalAnalysis.cpp b/lib/CodeGen/LiveIntervalAnalysis.cpp index e7abd47f53..88eeff7605 100644 --- a/lib/CodeGen/LiveIntervalAnalysis.cpp +++ b/lib/CodeGen/LiveIntervalAnalysis.cpp @@ -817,17 +817,15 @@ void LiveIntervals::computeIntervals() { MachineBasicBlock::iterator MI = MBB->begin(), miEnd = MBB->end(); - if (MBB->livein_begin() != MBB->livein_end()) { - // Create intervals for live-ins to this BB first. - for (MachineBasicBlock::const_livein_iterator LI = MBB->livein_begin(), - LE = MBB->livein_end(); LI != LE; ++LI) { - handleLiveInRegister(MBB, MIIndex, getOrCreateInterval(*LI)); - // Multiple live-ins can alias the same register. - for (const unsigned* AS = mri_->getSubRegisters(*LI); *AS; ++AS) - if (!hasInterval(*AS)) - handleLiveInRegister(MBB, MIIndex, getOrCreateInterval(*AS), - true); - } + // Create intervals for live-ins to this BB first. + for (MachineBasicBlock::const_livein_iterator LI = MBB->livein_begin(), + LE = MBB->livein_end(); LI != LE; ++LI) { + handleLiveInRegister(MBB, MIIndex, getOrCreateInterval(*LI)); + // Multiple live-ins can alias the same register. + for (const unsigned* AS = mri_->getSubRegisters(*LI); *AS; ++AS) + if (!hasInterval(*AS)) + handleLiveInRegister(MBB, MIIndex, getOrCreateInterval(*AS), + true); } for (; MI != miEnd; ++MI) { |