diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/CodeGen/RegAllocSimple.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/CodeGen/RegAllocSimple.cpp b/lib/CodeGen/RegAllocSimple.cpp index cd48cd2af5..1b7f5471b4 100644 --- a/lib/CodeGen/RegAllocSimple.cpp +++ b/lib/CodeGen/RegAllocSimple.cpp @@ -172,7 +172,8 @@ void RegAllocSimple::AllocateBasicBlock(MachineBasicBlock &MBB) { for (int i = MI->getNumOperands() - 1; i >= 0; --i) { MachineOperand &op = MI->getOperand(i); - if (op.isRegister() && MRegisterInfo::isVirtualRegister(op.getReg())) { + if (op.isRegister() && op.getReg() && + MRegisterInfo::isVirtualRegister(op.getReg())) { unsigned virtualReg = (unsigned) op.getReg(); DEBUG(std::cerr << "op: " << op << "\n"); DEBUG(std::cerr << "\t inst[" << i << "]: "; |