condition flags USE in AD instruct
Thomas.Rodriguez at Sun.COM
Tue Apr 14 11:18:20 PDT 2009
On Apr 14, 2009, at 11:07 AM, Tom Rodriguez wrote:
> What's it look like? You can USE something that isn't mentioned in
> the match rule. A USE has to an
> input to the underlying MachNode and if it's not mentioned in the
> match rule then it's not an input.
> On Apr 14, 2009, at 11:05 AM, Christian Thalinger wrote:
>> On Tue, 2009-04-14 at 10:45 -0700, Tom Rodriguez wrote:
>>> It might be a case of too string error checking. If you have a
>>> rule then all the USE and DEF effects are taken care of and I don't
>>> think it would complain about USEing that flags. Are you going to
>>> have a match rule on the instruct or are you writing an instruct for
>>> use in an expand rule?
>> A match rule on the instruct. This is the ADDC.
>> -- Christian
More information about the hotspot-compiler-dev