From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ@public.gmane.org Subject: [Bug 90348] New: Spilling failure of b96 merged value Date: Wed, 06 May 2015 18:41:59 +0000 Message-ID: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============0060942039==" Return-path: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: nouveau-bounces-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org Sender: "Nouveau" To: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org List-Id: nouveau.vger.kernel.org --===============0060942039== Content-Type: multipart/alternative; boundary="1430937719.5FD5C40.31382"; charset="UTF-8" --1430937719.5FD5C40.31382 Date: Wed, 6 May 2015 18:41:59 +0000 MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" https://bugs.freedesktop.org/show_bug.cgi?id=90348 Bug ID: 90348 Summary: Spilling failure of b96 merged value Product: Mesa Version: git Hardware: Other OS: All Status: NEW Severity: normal Priority: medium Component: Drivers/DRI/nouveau Assignee: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org Reporter: imirkin-FrUbXkNCsVf2fBVCVOL8/A@public.gmane.org QA Contact: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org Sometimes the spilling logic will decide to spill a merged def. This is fine for 2- and 4-wide values as there are appropriate load/store instructions for those, but not so with 3-wide values. We must take that into account in the SpillCodeInserter and emit a 64-bit and 32-bit store into lmem (and similar for load, although less important, as it tends to have gotten split up by the time the use rolls around). Unfortunately I've lost track of the program that repro'd this issue. -- You are receiving this mail because: You are the QA Contact for the bug. You are the assignee for the bug. --1430937719.5FD5C40.31382 Date: Wed, 6 May 2015 18:41:59 +0000 MIME-Version: 1.0 Content-Type: text/html; charset="UTF-8"
Bug ID 90348
Summary Spilling failure of b96 merged value
Product Mesa
Version git
Hardware Other
OS All
Status NEW
Severity normal
Priority medium
Component Drivers/DRI/nouveau
Assignee nouveau@lists.freedesktop.org
Reporter imirkin@alum.mit.edu
QA Contact nouveau@lists.freedesktop.org 

Sometimes the spilling logic will decide to spill a merged def. This is fine
for 2- and 4-wide values as there are appropriate load/store instructions for
those, but not so with 3-wide values. We must take that into account in the
SpillCodeInserter and emit a 64-bit and 32-bit store into lmem (and similar for
load, although less important, as it tends to have gotten split up by the time
the use rolls around).

Unfortunately I've lost track of the program that repro'd this issue.

You are receiving this mail because:
  • You are the QA Contact for the bug.
  • You are the assignee for the bug.
--1430937719.5FD5C40.31382-- --===============0060942039== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Content-Disposition: inline X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KTm91dmVhdSBt YWlsaW5nIGxpc3QKTm91dmVhdUBsaXN0cy5mcmVlZGVza3RvcC5vcmcKaHR0cDovL2xpc3RzLmZy ZWVkZXNrdG9wLm9yZy9tYWlsbWFuL2xpc3RpbmZvL25vdXZlYXUK --===============0060942039==--