[LLVMdev] Bug in MachineInstr::isIdenticalTo

[Chris Lattner]

On Jan 4, 2011, at 12:13 PM, Villmow, Micah wrote:

>> I think you would be better off encoding the store size in the opcode.
>> 
> [Villmow, Micah] While it might be nice, this would cause massive instruction opcode bloat. I already have over 500 load/store opcodes and storing the size in the instruction would probably triple or quadruple this amount. So not encoding it in the opcode is a decision to lower the amount of opcodes required.

Jakob is right in this instance.  If you don't want to encode this in the *opcode* you can always add it as an imm operand to the instruction, avoiding bloat.

-Chris