[Nouveau] [Bug 90887] PhiMovesPass in register allocator broken

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Sun Jun 28 01:37:02 PDT 2015


--- Comment #18 from Ilia Mirkin <imirkin at alum.mit.edu> ---
(In reply to Ilia Mirkin from comment #17)
> Created attachment 116761 [details] [review]
> another attempt
> OK, I like this a bit better since it doesn't use any weird maps, and incurs
> minimal costs in the common case. It unfortunately encodes the graph's
> insertion strategy, but... meh.

Ugh, actually this patch won't work. It needs to be

         phi->setSrc(j, tmp);

but then I lose the "old" phi source. So perhaps the map approach is ~required

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