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...MI.addOperand() doesn't append the operand to the end? It really should. Also note that MI.addOperand() was mostly rewritten in r140744. /jakob -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20111012/32c57015/attachment.html>

Hi, I think I've found a bug in this method. I ran it on an MI which already had two implicit-use operands, and which defined a register with a subregindex, ie reg::lo16. For the def-operand, with a subregindex, an implicit-use operand was added with this code: VirtUseOps.insert(VirtUseOps.begin(), MI.getNumOperands()); MI.addOperand(MachineOperand::CreateReg(VirtReg,