My AGP rv670 box has been in pieces for a while so no testing until today.

It seems that it suffers from the same regression as my 790 - 

https://bugs.freedesktop.org/show_bug.cgi?id=64096

but the fixes for that do not help.

With llvm set on -

commit 25f259cde28860ea76c2f5628010968945a28edb
Author: Vincent Lejeune <vljn@ovi.com>
Date:   Tue Apr 30 00:14:27 2013 +0000

    R600: Packetize instructions

    git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180760
91177308-0d34-0410-b5e6-96231b3b80d8

the issue is there, the commit before and rendering is OK.

Priority	medium
Bug ID	64193
CC	vljn@ovi.com
Assignee	dri-devel@lists.freedesktop.org
Summary	LLVM RV670 regression since R600: Packetize instructions
Severity	normal
Classification	Unclassified
OS	Linux (All)
Reporter	adf.lists@gmail.com
Hardware	x86 (IA32)
Status	NEW
Version	git
Component	Drivers/Gallium/r600
Product	Mesa