Displaying 2 results from an estimated 2 matches for "hasnoctrldep".
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hasctrldep
2012 Jun 24
0
[LLVMdev] Complex load patterns and token factors
...d carefully put on their
instructions, even if useless.
> I am not sure what kind of load does not need to be chained (prefetch?), but I'd prefer to keep the system friendly if at
> all possible. They'll be fewer bugs that way.
That is the main worry. Could we justify a second "hasNoCtrlDep" in
addition to "hasCtrlDep", with it being a TableGen error to set both?
Or just forget about the override until someone actually comes up with
an instruction that's legitimately "mayLoad" or whatever yet doesn't
want a chain (I don't think even prefetch counts...
2012 Jun 24
2
[LLVMdev] Complex load patterns and token factors
On Sun, 24 Jun 2012 10:18:00 +0100
Tim Northover <t.p.northover at gmail.com> wrote:
> > I also had to include II.canFoldAsLoad to make this work for me. As
> > is the case with other "simple" loads in the PowerPC backend,
> > canFoldAsLoad is set but mayLoad is not (is this wrong)?
>
> Hmm. So far we've got: mayLoad, mayStore, canFoldAsLoad and
>