Created attachment 99678 [details] Screenshot of the wireframes Currently running the latest mesa git with a Radeon HD 7950. Simply set MSAA to 4x to experience this bug.
After testing on a Radeon HD 6850 and 4870 machine, this bug exists on r600 as well.
Again like in bug 79155, you seems to use spill-fixes and bug is related to that - so you should mention that i think :). Without spill-fixes MSAA 2x works for me on Radeon 8400, but with MSAA 4x there is crash when loading 'complex' map with message "LLVM ERROR: ran out of registers during register allocation".
I don't think it would be related to that considering this also happens on my Radeon HD 4870 and 6850 machines which do not use LLVM.
OK then better open bug against r600 for that issue - that is clear case :). But this bug against radeonsi and bug 79155 are reletad because they are blocked by bug 75276, because currently you cannot see them without experimental code from that bug.
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