https://bugs.freedesktop.org/show_bug.cgi?id=90056
--- Comment #4 from Grigori Goronzy greg@chown.ath.cx --- Created attachment 115333 --> https://bugs.freedesktop.org/attachment.cgi?id=115333&action=edit Reduced test case
Here's a reduced testcase. I'm not sure how undef branch conditions are supposed to be handled, make someone else can take a look?