About Regmove !!

[Jeff Law]

 In message <Pine.LNX.4.21.0211121718270.13111-100000@mail.kloo.net>, tm 
writes:
 >Is there a particular reference you have in mind which covers handling
 >addressing inheritance in GCSE?
It's covered in the usual places.  Morgan & Muchnick both discuss it at
various levels of detail.  It'll be in the section on integration strength
reduction with global cse (lcm)

 >To me, it seems very awkward to have address inheritance handled by GCSE.
It's actually quite natural.  Far more so than the ad-hoc mess in regmove.


 >In order to generate efficient address inheritance, the addressing mode of
 >an instruction may need to be changed. This implies GCSE will need to
 >understand all of the target CPU's addressing modes and allowable
 >displacements for each one.
Already handled by GO_IF_LEGITIMATE_ADDRESS.

jeff