diff options
Diffstat (limited to 'lib/CodeGen/LiveRangeEdit.cpp')
| -rw-r--r-- | lib/CodeGen/LiveRangeEdit.cpp | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/lib/CodeGen/LiveRangeEdit.cpp b/lib/CodeGen/LiveRangeEdit.cpp index 3bbda1c2e6..7de1284cb9 100644 --- a/lib/CodeGen/LiveRangeEdit.cpp +++ b/lib/CodeGen/LiveRangeEdit.cpp @@ -75,9 +75,10 @@ bool LiveRangeEdit::allUsesAvailableAt(const MachineInstr *OrigMI, if (MO.isDef()) return false; // We cannot depend on virtual registers in uselessRegs_. - for (unsigned ui = 0, ue = uselessRegs_.size(); ui != ue; ++ui) - if (uselessRegs_[ui]->reg == MO.getReg()) - return false; + if (uselessRegs_) + for (unsigned ui = 0, ue = uselessRegs_->size(); ui != ue; ++ui) + if ((*uselessRegs_)[ui]->reg == MO.getReg()) + return false; LiveInterval &li = lis.getInterval(MO.getReg()); const VNInfo *OVNI = li.getVNInfoAt(OrigIdx); |