diff options
| -rw-r--r-- | lib/CodeGen/MachineInstr.cpp | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/lib/CodeGen/MachineInstr.cpp b/lib/CodeGen/MachineInstr.cpp index e8885761db..ce8d52000b 100644 --- a/lib/CodeGen/MachineInstr.cpp +++ b/lib/CodeGen/MachineInstr.cpp @@ -1015,9 +1015,10 @@ MachineInstr::getRegClassConstraint(unsigned OpIdx, unsigned MachineInstr::getBundleSize() const { assert(isBundle() && "Expecting a bundle"); - MachineBasicBlock::const_instr_iterator I = *this; + const MachineBasicBlock *MBB = getParent(); + MachineBasicBlock::const_instr_iterator I = *this, E = MBB->instr_end(); unsigned Size = 0; - while ((++I)->isInsideBundle()) { + while ((++I != E) && I->isInsideBundle()) { ++Size; } assert(Size > 1 && "Malformed bundle"); |