Comment # 4 on bug 71320 from Kai

This test passes with my current stack:
GPU: "PITCAIRN" (ChipID = 0x6819)
Linux: 3.13.6
libdrm: 2.4.52-1
LLVM: SVN:trunk/r204517
libclc: Git:master/1e278a7b04
Mesa: Git:master/4c79f088c0
GLAMOR: Git:master/a4fbc7732a (Standalone)
DDX: Git:master/ea6d0affe5
X: 1.15.0-2