[LLVMdev] MachineOperand::TargetFlags question

Chris Lattner clattner at apple.com
Thu Oct 21 23:09:47 PDT 2010


On Oct 18, 2010, at 11:59 AM, Villmow, Micah wrote:

> I’m looking at utilizing the MachineOperand::TargetFlags and I’m wondering if there is a specific reason on limiting the size of the flags to 8 bits. Also are there any assumptions on what can be validly used here that I should keep in mind? Ideally I need 28 bits but I can code the major cases using all 8 bits, but I don’t want to clobber anything that might be used internally in LLVM.
>  

Micah, you shouldn't encode this into TargetFlags, this should become an immediate operand of its own.

-Chris

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