[LLVMdev] How to avoid register reuse in machine instructions?

Andrew Clinton andrew at sidefx.com
Wed Jan 19 10:24:50 PST 2011


On 01/19/2011 01:14 PM, Anton Korobeynikov wrote:
> Right now the only way is to mark output reg as earlyclobber (see ARM
> backend for examples).
> Note that post-RA scheduler is not yet aware about earlyclobber
> operands and thus can break the constraint.
>

That solved it, thank you!



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