This should not have been here at the first place. This patch set is a POC that 
simd32 gives performance boosts for certain benchmarks.  As you said it really 
needs clean up and more testing, before it can be merged.

--
Valtteri

From: mesa-dev [mailto:mesa-dev-boun...@lists.freedesktop.org] On Behalf Of 
Jason Ekstrand
Sent: Monday, May 21, 2018 7:24 AM
To: Tang, Shaofeng <shaofeng.t...@intel.com>
Cc: ML mesa-dev <mesa-dev@lists.freedesktop.org>
Subject: Re: [Mesa-dev] [PATCH 18/47] (0018b) Fix for Patch 0018; I have no 
idea if this is a real fix or not

As is evident from patches like this, this series is nowhere near ready for 
upstream.  There's quite a bit of clean up work to do before it will be really 
ready to merge.  I've been working on trying to clean up Francisco's original 
branch and sent out the first 19 ready-for-upstream patches on Friday: 
https://patchwork.freedesktop.org/series/43450/  I intend to send more later 
this week once I get a couple of GPU hangs sorted out.

--Jason

On Sun, May 20, 2018 at 8:29 PM, Shaofeng Tang 
<shaofeng.t...@intel.com<mailto:shaofeng.t...@intel.com>> wrote:
From: Kevin Rogovin <kevin.rogo...@intel.com<mailto:kevin.rogo...@intel.com>>

Change-Id: Ic5948415e0b4d6799b6a88ac507c1999ccb1df39
---
 src/intel/compiler/brw_fs.cpp | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/intel/compiler/brw_fs.cpp b/src/intel/compiler/brw_fs.cpp
index 121f9f8..b089b79 100644
--- a/src/intel/compiler/brw_fs.cpp
+++ b/src/intel/compiler/brw_fs.cpp
@@ -3349,7 +3349,11 @@ fs_visitor::emit_repclear_shader()

    assign_constant_locations();
    assign_curb_setup();
-   allocate_registers(16, false);
+   /* WARNING: the original SIMD32 series has this line added, in patch
+    * "i965/fs: Rework FB write header setup for SIMD32 and better scheduling."
+    * but giving this line makes bad things happen later.
+    */
+   // allocate_registers(16, false);

    /* Now that we have the uniform assigned, go ahead and force it to a vec4. 
*/
    if (uniforms > 0) {
--
2.7.4

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