DFA Instruction Output for VLIW
Dan Towner
dant@picochip.com
Mon Jun 17 06:30:00 GMT 2002
Vlad,
> You could use dfa pipeline hazard recognizer on final phase (see macro
> FINAL_PRESCAN_INSN) to find start of a new VLIW insn and get an
> execution unit used by the insn. In this case you should describe such
> units as (define_query_cpu_unit).
How do I query an instruction rtx to find out which EU it uses? I've
looked through the documentation, but can't find a description anywhere,
nor can I find another target which uses the query operation either.
Thanks,
Dan.
=============================================================================
Daniel Towner
picoChip Designs Ltd., Riverside Buildings, 108, Walcot Street, BATH,
BA1 5BG
dant@picochip.com
07786 702589
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