From mboxrd@z Thu Jan  1 00:00:00 1970
From: bugzilla-daemon@freedesktop.org
Subject: [Bug 95438] Elemental demo compute shader takes ages to compile
Date: Tue, 17 May 2016 02:01:15 +0000
Message-ID: <bug-95438-502@http.bugs.freedesktop.org/>
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--14634504750.8F079F38.12239
Date: Tue, 17 May 2016 02:01:15 +0000
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Auto-Submitted: auto-generated

https://bugs.freedesktop.org/show_bug.cgi?id=3D95438

            Bug ID: 95438
           Summary: Elemental demo compute shader takes ages to compile
           Product: Mesa
           Version: git
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/Gallium/radeonsi
          Assignee: dri-devel@lists.freedesktop.org
          Reporter: airlied@freedesktop.org
        QA Contact: dri-devel@lists.freedesktop.org

Created attachment 123804
  --> https://bugs.freedesktop.org/attachment.cgi?id=3D123804&action=3Dedit
compute shader and GLSL/TGSI/llvm IR.

After fixing the two GLSL bugs, I hit a case where one of the compute shade=
rs
in=20
ElementalDemo takes a long long time to compile and consumes a lot of memory
doing so.


#0  llvm::SUnit::addPred (this=3Dthis@entry=3D0x7fa8da02fae0, D=3D...,
Required=3DRequired@entry=3Dtrue)
    at /home/airlied/devel/llvm/lib/CodeGen/ScheduleDAG.cpp:67
#1  0x00007fa92c946d2d in llvm::ScheduleDAGInstrs::addPhysRegDataDeps
(this=3Dthis@entry=3D0x7fa9248d3840, SU=3DSU@entry=3D0x7fa8d9833c40,=20
    OperIdx=3DOperIdx@entry=3D8) at
/home/airlied/devel/llvm/lib/CodeGen/ScheduleDAGInstrs.cpp:318
#2  0x00007fa92c947198 in llvm::ScheduleDAGInstrs::addPhysRegDeps
(this=3Dthis@entry=3D0x7fa9248d3840, SU=3DSU@entry=3D0x7fa8d9833c40,=20
    OperIdx=3DOperIdx@entry=3D8) at
/home/airlied/devel/llvm/lib/CodeGen/ScheduleDAGInstrs.cpp:370
#3  0x00007fa92c94fd1e in llvm::ScheduleDAGInstrs::buildSchedGraph
(this=3Dthis@entry=3D0x7fa9248d3840, AA=3D0x7fa8e2e55b10,=20
    RPTracker=3DRPTracker@entry=3D0x0, PDiffs=3DPDiffs@entry=3D0x0, LIS=3DL=
IS@entry=3D0x0,
TrackLaneMasks=3DTrackLaneMasks@entry=3Dfalse)
    at /home/airlied/devel/llvm/lib/CodeGen/ScheduleDAGInstrs.cpp:959
#4  0x00007fa92c8ff02b in (anonymous namespace)::SchedulePostRATDList::sche=
dule
(this=3Dthis@entry=3D0x7fa9248d3840)
    at /home/airlied/devel/llvm/lib/CodeGen/PostRASchedulerList.cpp:391
#5  0x00007fa92c8ffbbe in (anonymous
namespace)::PostRAScheduler::runOnMachineFunction (this=3D0x7fa8e284a500, F=
n=3D...)
    at /home/airlied/devel/llvm/lib/CodeGen/PostRASchedulerList.cpp:360
#6  0x00007fa92c880721 in llvm::MachineFunctionPass::runOnFunction
(this=3D0x7fa8e284a500, F=3D...)
    at /home/airlied/devel/llvm/lib/CodeGen/MachineFunctionPass.cpp:60

--=20
You are receiving this mail because:
You are the assignee for the bug.=

--14634504750.8F079F38.12239
Date: Tue, 17 May 2016 02:01:15 +0000
MIME-Version: 1.0
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X-Bugzilla-URL: http://bugs.freedesktop.org/
Auto-Submitted: auto-generated

<html>
    <head>
      <base href=3D"https://bugs.freedesktop.org/">
    </head>
    <body><table border=3D"1" cellspacing=3D"0" cellpadding=3D"8">
        <tr>
          <th>Bug ID</th>
          <td><a class=3D"bz_bug_link=20
          bz_status_NEW "
   title=3D"NEW - Elemental demo compute shader takes ages to compile"
   href=3D"https://bugs.freedesktop.org/show_bug.cgi?id=3D95438">95438</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>Elemental demo compute shader takes ages to compile
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>Mesa
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>git
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>Other
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>All
          </td>
        </tr>

        <tr>
          <th>Status</th>
          <td>NEW
          </td>
        </tr>

        <tr>
          <th>Severity</th>
          <td>normal
          </td>
        </tr>

        <tr>
          <th>Priority</th>
          <td>medium
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>Drivers/Gallium/radeonsi
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>dri-devel&#64;lists.freedesktop.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>airlied&#64;freedesktop.org
          </td>
        </tr>

        <tr>
          <th>QA Contact</th>
          <td>dri-devel&#64;lists.freedesktop.org
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Created <span class=3D""><a href=3D"attachment.cgi?id=3D123804=
" name=3D"attach_123804" title=3D"compute shader and GLSL/TGSI/llvm IR.">at=
tachment 123804</a> <a href=3D"attachment.cgi?id=3D123804&amp;action=3Dedit=
" title=3D"compute shader and GLSL/TGSI/llvm IR.">[details]</a></span>
compute shader and GLSL/TGSI/llvm IR.

After fixing the two GLSL bugs, I hit a case where one of the compute shade=
rs
in=20
ElementalDemo takes a long long time to compile and consumes a lot of memory
doing so.


#0  llvm::SUnit::addPred (this=3Dthis&#64;entry=3D0x7fa8da02fae0, D=3D...,
Required=3DRequired&#64;entry=3Dtrue)
    at /home/airlied/devel/llvm/lib/CodeGen/ScheduleDAG.cpp:67
#1  0x00007fa92c946d2d in llvm::ScheduleDAGInstrs::addPhysRegDataDeps
(this=3Dthis&#64;entry=3D0x7fa9248d3840, SU=3DSU&#64;entry=3D0x7fa8d9833c40=
,=20
    OperIdx=3DOperIdx&#64;entry=3D8) at
/home/airlied/devel/llvm/lib/CodeGen/ScheduleDAGInstrs.cpp:318
#2  0x00007fa92c947198 in llvm::ScheduleDAGInstrs::addPhysRegDeps
(this=3Dthis&#64;entry=3D0x7fa9248d3840, SU=3DSU&#64;entry=3D0x7fa8d9833c40=
,=20
    OperIdx=3DOperIdx&#64;entry=3D8) at
/home/airlied/devel/llvm/lib/CodeGen/ScheduleDAGInstrs.cpp:370
#3  0x00007fa92c94fd1e in llvm::ScheduleDAGInstrs::buildSchedGraph
(this=3Dthis&#64;entry=3D0x7fa9248d3840, AA=3D0x7fa8e2e55b10,=20
    RPTracker=3DRPTracker&#64;entry=3D0x0, PDiffs=3DPDiffs&#64;entry=3D0x0,=
 LIS=3DLIS&#64;entry=3D0x0,
TrackLaneMasks=3DTrackLaneMasks&#64;entry=3Dfalse)
    at /home/airlied/devel/llvm/lib/CodeGen/ScheduleDAGInstrs.cpp:959
#4  0x00007fa92c8ff02b in (anonymous namespace)::SchedulePostRATDList::sche=
dule
(this=3Dthis&#64;entry=3D0x7fa9248d3840)
    at /home/airlied/devel/llvm/lib/CodeGen/PostRASchedulerList.cpp:391
#5  0x00007fa92c8ffbbe in (anonymous
namespace)::PostRAScheduler::runOnMachineFunction (this=3D0x7fa8e284a500, F=
n=3D...)
    at /home/airlied/devel/llvm/lib/CodeGen/PostRASchedulerList.cpp:360
#6  0x00007fa92c880721 in llvm::MachineFunctionPass::runOnFunction
(this=3D0x7fa8e284a500, F=3D...)
    at /home/airlied/devel/llvm/lib/CodeGen/MachineFunctionPass.cpp:60</pre>
        </div>
      </p>


      <hr>
      <span>You are receiving this mail because:</span>

      <ul>
          <li>You are the assignee for the bug.</li>
      </ul>
    </body>
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