[llvm-bugs] [Bug 32666] New: R9285 Unigine Valley mis-rendering since [AMDGPU] Add a new pass to insert waitcnts. Leave under an option for testing.

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=32666

            Bug ID: 32666
           Summary: R9285 Unigine Valley mis-rendering since  [AMDGPU] Add
                    a new pass to insert waitcnts. Leave under an option
                    for testing.
           Product: libraries
           Version: trunk
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: Backend: AMDGPU
          Assignee: unassignedbugs at nondot.org
          Reporter: adf.lists at gmail.com
                CC: llvm-bugs at lists.llvm.org

Created attachment 18287
  --> https://bugs.llvm.org/attachment.cgi?id=18287&action=edit
good shaders bz2

R9285 Tonga getting slight misrendering (miscoloured/slightly distorted
foliage) on Unigine valley. Bisect came up with below and reverting the commit
from head also fixes the rendering.

commit d3302ddc52a50218a5f8ec421d62835cbadb812f
Author: Kannan Narayanan <Kannan.narayanan at amd.com>
Date:   Wed Apr 12 03:25:12 2017 +0000

    [AMDGPU] Add a new pass to insert waitcnts. Leave under an option for
testing.

    Based on comments in https://reviews.llvm.org/D31161.



    git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300023
91177308-0d34-0410-b5e6-96231b3b80d8

Valley is running highest settings 8x msaa.

R600_DEBUG=vs,ps,fs output for good and bad attached.

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