On 06/15/2010 12:06 AM, Ian Lance Taylor wrote: > Well, as you know, subregs have two meanings which look similar but > are in fact entirely different. It's valid to set subregs of the same > pseudo in parallel if the subregs represent different hard registers. > It's not valid if the subregs represent different pieces of the same > hard register.
Are you aware of any examples of this in the compiler? The explanation is of course plausible, but do we know that we handle this correctly everywhere? Bernd
