Displaying 4 results from an estimated 4 matches for "getregunit".
2012 Aug 30
2
[LLVMdev] MC Register mapping question (MCRegUnitIterator )
...O, LI, Entering, Internal, Exiting, OldIdx);
} else {
// Collect ranges for individual virtual registers.
collectRanges(MO, &LIS.getInterval(Reg),
Entering, Internal, Exiting, OldIdx);
}
As an experiment, you could replace getCachedRegUnit with getRegUnit
(the uncached version) to make verify we don't have a stale state in
the cache.
On Thu, Aug 30, 2012 at 3:01 PM, Sergei Larin <slarin at codeaurora.org> wrote:
> Arnold,
>
> It is not my code per say - this is what is done in
> LiveIntervalAnalysis.cpp collectRanges(), it...
2012 Aug 30
0
[LLVMdev] MC Register mapping question (MCRegUnitIterator )
...ting, OldIdx);
> } else {
> // Collect ranges for individual virtual registers.
> collectRanges(MO, &LIS.getInterval(Reg),
> Entering, Internal, Exiting, OldIdx);
> }
>
> As an experiment, you could replace getCachedRegUnit with getRegUnit
> (the uncached version) to make verify we don't have a stale state in
> the cache.
LIS.getRegUnit() will either return the cached live range or compute it from scratch. That won't help.
It's calling getCachedRegUnit() here because there is no point in updating live ranges that...
2012 Aug 30
0
[LLVMdev] MC Register mapping question (MCRegUnitIterator )
Arnold,
It is not my code per say - this is what is done in
LiveIntervalAnalysis.cpp collectRanges(), it wants to iterate over "units"
of D1 (whatever they are assumed to be), but right there it associates them
with actual physical register live ranges (see the tread below), and it does
it wrongly. I was trying to pinpoint exactly to where the issue is, but
there are too many
2012 Aug 30
2
[LLVMdev] MC Register mapping question (MCRegUnitIterator )
Hi Sergei,
Register units != sub registers.
Register units are an abstraction to describe overlapping of registers
effectively.
You probably wanted to use MCSubRegIterator.
On Thu, Aug 30, 2012 at 2:30 PM, Sergei Larin <slarin at codeaurora.org> wrote:
> Hello Jakob and everyone,
>
> I am observing an issue with MCRegUnitIterator in my back end, and trying
> to reverse