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

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=90887

--- Comment #40 from jr <j-r at online.de> ---
Created attachment 120393
  --> https://bugs.freedesktop.org/attachment.cgi?id=120393&action=edit
Patch to simplify test case creation

Thanks. I finally had some time to look at the problem again. With the attached
patch it is easier to recreate the problem, because it causes every if without
an else clause to create a critical edge with the right property (i.e. not
being the first incoming edge).

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