[llvm-bugs] [Bug 36332] New: R9285 Unreal tournament game hang since [AMDGPU] Suppress redundant waitcnt instrs.

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=36332

            Bug ID: 36332
           Summary: R9285 Unreal tournament game hang since [AMDGPU]
                    Suppress redundant waitcnt instrs.
           Product: libraries
           Version: trunk
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: Backend: AMDGPU
          Assignee: unassignedbugs at nondot.org
          Reporter: adf.lists at gmail.com
                CC: llvm-bugs at lists.llvm.org

R9285 since below the Uneral Tournament alpha after some random time will hang
in its display thread and after a timeout enter its error reporting and quit
with a segfault (haven't found the details for that).

There is nothing in dmesg and it seems no harm is done to GPU/System.

commit 4fe7c58adf9295bee3aa23cd67afb54c054693e1
Author: Mark Searles <m.c.searles at gmail.com>
Date:   Wed Feb 7 02:21:21 2018 +0000

    [AMDGPU] Suppress redundant waitcnt instrs.

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