[LLVMdev] Subregister definition / use

Jonas Paulsson jnspaulsson at hotmail.com
Wed Nov 9 07:48:55 PST 2011


Hi,

I can't find a way to define a subregister in a MI, while using another subregister in the same MI.

For example:

reg:low  = OP reg:hi, rhs

I really need the reg:low to be part of the same register as reg:hi, but when I use REG_SEQUENCE, this does not happen - I instead get
regC = OP reg:hi, rhs
reg:low = regC

This is not good enough for me. What should I do?

/Jonas
 		 	   		  
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20111109/a9faf148/attachment.html>


More information about the llvm-dev mailing list