https://bugs.freedesktop.org/show_bug.cgi?id=75276
--- Comment #32 from Christoph Haag haagch@frickel.club --- Created attachment 103583 --> https://bugs.freedesktop.org/attachment.cgi?id=103583&action=edit backtrace of unreal engine effects demo with debug
(In reply to comment #31)
(In reply to comment #30)
But every demo segfaults. Mostly in LLVMBuildBitCast().
[...]
This is still a problem with register spilling that just looks different, right?
No, that sounds like bug 81834.
So I built mesa with debug symbols and I guess debugging enables some assertions because now fails at some assertion about Register.Index stuff. Full backtrace attached.
(bug 81834 doesn't say what versions he uses. I use upstream llvm 214022 and mesa git with the small patch I mentioned)
Of course it could be both problems at the same time.