Problems with latest rocm environment

Hello,
I tried to run some of the examples with rocm 2.9 environment unsuccessfully. Just saw that the repository wasn't updated since last year. Is it correct that the current state of Numba is incompatible with the latest rocm stack? Which recently version of rocm is compatible with numba?
numba -s shows:
```
System info:
--------------------------------------------------------------------------------
__Time Stamp__
2019-10-06 09:57:48.722056

__Hardware Information__
Machine : x86_64
CPU Name : znver1
CPU count : 32
CFS restrictions : None
CPU Features :
64bit adx aes avx avx2 bmi bmi2 clflushopt clzero cmov cx16 f16c fma fsgsbase
lzcnt mmx movbe mwaitx pclmul popcnt prfchw rdrnd rdseed sahf sha sse sse2 sse3
sse4.1 sse4.2 sse4a ssse3 xsave xsavec xsaveopt xsaves

__OS Information__
Platform : Linux-5.0.0-31-generic-x86_64-with-debian-stretch-sid
Release : 5.0.0-31-generic
System Name : Linux
Version : #33~18.04.1-Ubuntu SMP Tue Oct 1 10:20:39 UTC 2019
OS specific info : debianstretch/sid
glibc info : glibc 2.10

__Python Information__
Python Compiler : GCC 7.3.0
Python Implementation : CPython
Python Version : 3.7.4
Python Locale : en_US UTF-8

__LLVM information__
LLVM version : 8.0.0

__CUDA Information__
CUDA driver library cannot be found or no CUDA enabled devices are present.
Error class:

__ROC Information__
ROC available : True
Available Toolchains : librocmlite library, ROC command line tools

Found 3 HSA Agents:
Agent id : 0
vendor: CPU
name: AMD Ryzen Threadripper 2950X 16-Core Processor
type: CPU

Agent id : 1
vendor: AMD
name: gfx906
type: GPU

Agent id : 2
vendor: AMD
name: gfx906
type: GPU

Found 2 discrete GPU(s) : gfx906, gfx906

__SVML Information__
SVML state, config.USING_SVML : False
SVML library found and loaded : False
llvmlite using SVML patched LLVM : True
SVML operational : False

__Threading Layer Information__
TBB Threading layer available : False
+--> Disabled due to : Unknown import problem.
OpenMP Threading layer available : True
Workqueue Threading layer available : True

__Numba Environment Variable Information__
None set.

__Conda Information__
conda_build_version : 3.18.8
conda_env_version : 4.7.10
platform : linux-64
python_version : 3.7.3.final.0
root_writable : True

__Current Conda Env__
_libgcc_mutex 0.1 main
blas 1.0 mkl
ca-certificates 2019.8.28 0
certifi 2019.9.11 py37_0
intel-openmp 2019.4 243
libedit 3.1.20181209 hc058e9b_0
libffi 3.2.1 hd88cf55_4
libgcc-ng 9.1.0 hdf63c60_0
libgfortran-ng 7.3.0 hdf63c60_0
libstdcxx-ng 9.1.0 hdf63c60_0
llvmlite 0.30.0rc1 py37hf484d3e_0 numba
mkl 2019.4 243
mkl-service 2.3.0 py37he904b0f_0
mkl_fft 1.0.14 py37ha843d7b_0
mkl_random 1.1.0 py37hd6b4f25_0
ncurses 6.1 he6710b0_1
numba 0.46.0rc1 np116py37hf484d3e_0 numba
numpy 1.16.4 py37h7e9f1db_0
numpy-base 1.16.4 py37hde5b4d6_0
openssl 1.1.1d h7b6447c_2
pip 19.2.3 py37_0
python 3.7.4 h265db76_1
readline 7.0 h7b6447c_5
roctools 0.0.0 hf484d3e_1 numba
setuptools 41.2.0 py37_0
six 1.12.0 py37_0
sqlite 3.30.0 h7b6447c_0
tk 8.6.8 hbc83047_0
wheel 0.33.6 py37_0
xz 5.2.4 h14c3975_4
zlib 1.2.11 h7b6447c_3
--------------------------------------------------------------------------------
If requested, please copy and paste the information between
the dashed (----) lines, or from a given specific section as
appropriate.

=============================================================
IMPORTANT: Please ensure that you are happy with sharing the
contents of the information present, any information that you
wish to keep private you should remove before sharing.
=============================================================
```
Running the Matrix Multiplication example from [https://numba.pydata.org/numba-doc/dev/roc/examples.html#matrix-multiplication](url) results in:
```
# numba test.py
warning: Linking two modules of different data layouts: '' is 'e-p:64:64-p1:64:64-p2:32:32-p3:32:32-p4:64:64-p5:32:32-p6:32:32-i64:64-v16:16-v24:32-v32:32-v48:64-v96:128-v192:256-v256:256-v512:512-v1024:1024-v2048:2048-n32:64-A5' whereas '' is 'e-p:64:64-p1:64:64-p2:32:32-p3:32:32-p4:64:64-p5:32:32-p6:32:32-i64:64-v16:16-v24:32-v32:32-v48:64-v96:128-v192:256-v256:256-v512:512-v1024:1024-v2048:2048-n32:64-S32-A5'

warning: Linking two modules of different target triples: ' is 'amdgcn-amd-amdhsa-amdgizcl' whereas '' is 'amdgcn--amdhsa'

warning: Linking two modules of different data layouts: '' is 'e-p:64:64-p1:64:64-p2:32:32-p3:32:32-p4:64:64-p5:32:32-p6:32:32-i64:64-v16:16-v24:32-v32:32-v48:64-v96:128-v192:256-v256:256-v512:512-v1024:1024-v2048:2048-n32:64-A5' whereas '' is 'e-p:64:64-p1:64:64-p2:32:32-p3:32:32-p4:64:64-p5:32:32-p6:32:32-i64:64-v16:16-v24:32-v32:32-v48:64-v96:128-v192:256-v256:256-v512:512-v1024:1024-v2048:2048-n32:64-S32-A5'

warning: Linking two modules of different target triples: ' is 'amdgcn-amd-amdhsa-amdgizcl' whereas '' is 'amdgcn--amdhsa'

warning: Linking two modules of different data layouts: '' is 'e-p:64:64-p1:64:64-p2:32:32-p3:32:32-p4:64:64-p5:32:32-p6:32:32-i64:64-v16:16-v24:32-v32:32-v48:64-v96:128-v192:256-v256:256-v512:512-v1024:1024-v2048:2048-n32:64-A5' whereas '' is 'e-p:64:64-p1:64:64-p2:32:32-p3:32:32-p4:64:64-p5:32:32-p6:32:32-i64:64-v16:16-v24:32-v32:32-v48:64-v96:128-v192:256-v256:256-v512:512-v1024:1024-v2048:2048-n32:64-S32-A5'

warning: Linking two modules of different target triples: ' is 'amdgcn-amd-amdhsa-amdgizcl' whereas '' is 'amdgcn--amdhsa'

warning: Linking two modules of different data layouts: '' is 'e-p:64:64-p1:64:64-p2:32:32-p3:32:32-p4:64:64-p5:32:32-p6:32:32-i64:64-v16:16-v24:32-v32:32-v48:64-v96:128-v192:256-v256:256-v512:512-v1024:1024-v2048:2048-n32:64-A5' whereas '' is 'e-p:64:64-p1:64:64-p2:32:32-p3:32:32-p4:64:64-p5:32:32-p6:32:32-i64:64-v16:16-v24:32-v32:32-v48:64-v96:128-v192:256-v256:256-v512:512-v1024:1024-v2048:2048-n32:64-S32-A5'

warning: Linking two modules of different target triples: ' is 'amdgcn-amd-amdhsa-amdgizcl' whereas '' is 'amdgcn--amdhsa'

warning: Linking two modules of different data layouts: '' is 'e-p:64:64-p1:64:64-p2:32:32-p3:32:32-p4:64:64-p5:32:32-p6:32:32-i64:64-v16:16-v24:32-v32:32-v48:64-v96:128-v192:256-v256:256-v512:512-v1024:1024-v2048:2048-n32:64-A5' whereas '' is 'e-p:64:64-p1:64:64-p2:32:32-p3:32:32-p4:64:64-p5:32:32-p6:32:32-i64:64-v16:16-v24:32-v32:32-v48:64-v96:128-v192:256-v256:256-v512:512-v1024:1024-v2048:2048-n32:64-S32-A5'

warning: Linking two modules of different target triples: ' is 'amdgcn-amd-amdhsa-amdgizcl' whereas '' is 'amdgcn--amdhsa'

warning: Linking two modules of different data layouts: '' is 'e-p:64:64-p1:64:64-p2:32:32-p3:32:32-p4:64:64-p5:32:32-p6:32:32-i64:64-v16:16-v24:32-v32:32-v48:64-v96:128-v192:256-v256:256-v512:512-v1024:1024-v2048:2048-n32:64-A5' whereas '' is 'e-p:64:64-p1:64:64-p2:32:32-p3:32:32-p4:64:64-p5:32:32-p6:32:32-i64:64-v16:16-v24:32-v32:32-v48:64-v96:128-v192:256-v256:256-v512:512-v1024:1024-v2048:2048-n32:64-S32-A5'

warning: Linking two modules of different target triples: ' is 'amdgcn-amd-amdhsa-amdgizcl' whereas '' is 'amdgcn--amdhsa'

warning: Linking two modules of different data layouts: '' is 'e-p:64:64-p1:64:64-p2:32:32-p3:32:32-p4:64:64-p5:32:32-p6:32:32-i64:64-v16:16-v24:32-v32:32-v48:64-v96:128-v192:256-v256:256-v512:512-v1024:1024-v2048:2048-n32:64-A5' whereas '' is 'e-p:64:64-p1:64:64-p2:32:32-p3:32:32-p4:64:64-p5:32:32-p6:32:32-i64:64-v16:16-v24:32-v32:32-v48:64-v96:128-v192:256-v256:256-v512:512-v1024:1024-v2048:2048-n32:64-S32-A5'

warning: Linking two modules of different target triples: ' is 'amdgcn-amd-amdhsa-amdgizcl' whereas '' is 'amdgcn--amdhsa'

warning: Linking two modules of different data layouts: '' is 'e-p:64:64-p1:64:64-p2:32:32-p3:32:32-p4:64:64-p5:32:32-p6:32:32-i64:64-v16:16-v24:32-v32:32-v48:64-v96:128-v192:256-v256:256-v512:512-v1024:1024-v2048:2048-n32:64-A5' whereas '' is 'e-p:64:64-p1:64:64-p2:32:32-p3:32:32-p4:64:64-p5:32:32-p6:32:32-i64:64-v16:16-v24:32-v32:32-v48:64-v96:128-v192:256-v256:256-v512:512-v1024:1024-v2048:2048-n32:64-S32-A5'

warning: Linking two modules of different target triples: ' is 'amdgcn-amd-amdhsa-amdgizcl' whereas '' is 'amdgcn--amdhsa'

warning: Linking two modules of different data layouts: '' is 'e-p:64:64-p1:64:64-p2:32:32-p3:32:32-p4:64:64-p5:32:32-p6:32:32-i64:64-v16:16-v24:32-v32:32-v48:64-v96:128-v192:256-v256:256-v512:512-v1024:1024-v2048:2048-n32:64-A5' whereas '' is 'e-p:64:64-p1:64:64-p2:32:32-p3:32:32-p4:64:64-p5:32:32-p6:32:32-i64:64-v16:16-v24:32-v32:32-v48:64-v96:128-v192:256-v256:256-v512:512-v1024:1024-v2048:2048-n32:64-S32-A5'

warning: Linking two modules of different target triples: ' is 'amdgcn-amd-amdhsa-amdgizcl' whereas '' is 'amdgcn--amdhsa'

'gfx906' is not a recognized processor for this target (ignoring processor)
'gfx906' is not a recognized processor for this target (ignoring processor)
'gfx906' is not a recognized processor for this target (ignoring processor)
'gfx906' is not a recognized processor for this target (ignoring processor)
'gfx906' is not a recognized processor for this target (ignoring processor)
'gfx906' is not a recognized processor for this target (ignoring processor)
'gfx906' is not a recognized processor for this target (ignoring processor)
'gfx906' is not a recognized processor for this target (ignoring processor)
'gfx906' is not a recognized processor for this target (ignoring processor)
'gfx906' is not a recognized processor for this target (ignoring processor)
'gfx906' is not a recognized processor for this target (ignoring processor)
'gfx906' is not a recognized processor for this target (ignoring processor)
'gfx906' is not a recognized processor for this target (ignoring processor)
'gfx906' is not a recognized processor for this target (ignoring processor)
'gfx906' is not a recognized processor for this target (ignoring processor)
'gfx906' is not a recognized processor for this target (ignoring processor)
'gfx906' is not a recognized processor for this target (ignoring processor)
'gfx906' is not a recognized processor for this target (ignoring processor)
'gfx906' is not a recognized processor for this target (ignoring processor)
'gfx906' is not a recognized processor for this target (ignoring processor)
'gfx906' is not a recognized processor for this target (ignoring processor)
'gfx906' is not a recognized processor for this target (ignoring processor)
'gfx906' is not a recognized processor for this target (ignoring processor)
'gfx906' is not a recognized processor for this target (ignoring processor)
'gfx906' is not a recognized processor for this target (ignoring processor)
'gfx906' is not a recognized processor for this target (ignoring processor)
LLVM ERROR: Attempting to emit S_LOAD_DWORDX2_IMM_si instruction but the Feature_isGCN predicate(s) are not met
```
rocminfo shows:
```
=====================
HSA System Attributes
=====================
Runtime Version: 1.1
System Timestamp Freq.: 1000.000000MHz
Sig. Max Wait Duration: 18446744073709551615 (0xFFFFFFFFFFFFFFFF) (timestamp count)
Machine Model: LARGE
System Endianness: LITTLE

==========
HSA Agents
==========
*******
Agent 1
*******
Name: AMD Ryzen Threadripper 2950X 16-Core Processor
Marketing Name: AMD Ryzen Threadripper 2950X 16-Core Processor
Vendor Name: CPU
Feature: None specified
Profile: FULL_PROFILE
Float Round Mode: NEAR
Max Queue Number: 0(0x0)
Queue Min Size: 0(0x0)
Queue Max Size: 0(0x0)
Queue Type: MULTI
Node: 0
Device Type: CPU
Cache Info:
L1: 32768(0x8000) KB
Chip ID: 0(0x0)
Cacheline Size: 64(0x40)
Max Clock Freq. (MHz): 3500
BDFID: 0
Internal Node ID: 0
Compute Unit: 32
SIMDs per CU: 0
Shader Engines: 0
Shader Arrs. per Eng.: 0
WatchPts on Addr. Ranges:1
Features: None
Pool Info:
Pool 1
Segment: GLOBAL; FLAGS: KERNARG, FINE GRAINED
Size: 65879904(0x3ed3f60) KB
Allocatable: TRUE
Alloc Granule: 4KB
Alloc Alignment: 4KB
Acessible by all: TRUE
Pool 2
Segment: GLOBAL; FLAGS: COARSE GRAINED
Size: 65879904(0x3ed3f60) KB
Allocatable: TRUE
Alloc Granule: 4KB
Alloc Alignment: 4KB
Acessible by all: TRUE
ISA Info:
N/A
*******
Agent 2
*******
Name: gfx906
Marketing Name: Vega 20
Vendor Name: AMD
Feature: KERNEL_DISPATCH
Profile: BASE_PROFILE
Float Round Mode: NEAR
Max Queue Number: 128(0x80)
Queue Min Size: 4096(0x1000)
Queue Max Size: 131072(0x20000)
Queue Type: MULTI
Node: 1
Device Type: GPU
Cache Info:
L1: 16(0x10) KB
Chip ID: 26287(0x66af)
Cacheline Size: 64(0x40)
Max Clock Freq. (MHz): 1801
BDFID: 2560
Internal Node ID: 1
Compute Unit: 60
SIMDs per CU: 4
Shader Engines: 4
Shader Arrs. per Eng.: 1
WatchPts on Addr. Ranges:4
Features: KERNEL_DISPATCH
Fast F16 Operation: FALSE
Wavefront Size: 64(0x40)
Workgroup Max Size: 1024(0x400)
Workgroup Max Size per Dimension:
x 1024(0x400)
y 1024(0x400)
z 1024(0x400)
Max Waves Per CU: 40(0x28)
Max Work-item Per CU: 2560(0xa00)
Grid Max Size: 4294967295(0xffffffff)
Grid Max Size per Dimension:
x 4294967295(0xffffffff)
y 4294967295(0xffffffff)
z 4294967295(0xffffffff)
Max fbarriers/Workgrp: 32
Pool Info:
Pool 1
Segment: GLOBAL; FLAGS: COARSE GRAINED
Size: 16760832(0xffc000) KB
Allocatable: TRUE
Alloc Granule: 4KB
Alloc Alignment: 4KB
Acessible by all: FALSE
Pool 2
Segment: GROUP
Size: 64(0x40) KB
Allocatable: FALSE
Alloc Granule: 0KB
Alloc Alignment: 0KB
Acessible by all: FALSE
ISA Info:
ISA 1
Name: amdgcn-amd-amdhsa--gfx906
Machine Models: HSA_MACHINE_MODEL_LARGE
Profiles: HSA_PROFILE_BASE
Default Rounding Mode: NEAR
Default Rounding Mode: NEAR
Fast f16: TRUE
Workgroup Max Size: 1024(0x400)
Workgroup Max Size per Dimension:
x 1024(0x400)
y 1024(0x400)
z 1024(0x400)
Grid Max Size: 4294967295(0xffffffff)
Grid Max Size per Dimension:
x 4294967295(0xffffffff)
y 4294967295(0xffffffff)
z 4294967295(0xffffffff)
FBarrier Max Size: 32
*******
Agent 3
*******
Name: gfx906
Marketing Name: Vega 20
Vendor Name: AMD
Feature: KERNEL_DISPATCH
Profile: BASE_PROFILE
Float Round Mode: NEAR
Max Queue Number: 128(0x80)
Queue Min Size: 4096(0x1000)
Queue Max Size: 131072(0x20000)
Queue Type: MULTI
Node: 2
Device Type: GPU
Cache Info:
L1: 16(0x10) KB
Chip ID: 26287(0x66af)
Cacheline Size: 64(0x40)
Max Clock Freq. (MHz): 1801
BDFID: 17152
Internal Node ID: 2
Compute Unit: 60
SIMDs per CU: 4
Shader Engines: 4
Shader Arrs. per Eng.: 1
WatchPts on Addr. Ranges:4
Features: KERNEL_DISPATCH
Fast F16 Operation: FALSE
Wavefront Size: 64(0x40)
Workgroup Max Size: 1024(0x400)
Workgroup Max Size per Dimension:
x 1024(0x400)
y 1024(0x400)
z 1024(0x400)
Max Waves Per CU: 40(0x28)
Max Work-item Per CU: 2560(0xa00)
Grid Max Size: 4294967295(0xffffffff)
Grid Max Size per Dimension:
x 4294967295(0xffffffff)
y 4294967295(0xffffffff)
z 4294967295(0xffffffff)
Max fbarriers/Workgrp: 32
Pool Info:
Pool 1
Segment: GLOBAL; FLAGS: COARSE GRAINED
Size: 16760832(0xffc000) KB
Allocatable: TRUE
Alloc Granule: 4KB
Alloc Alignment: 4KB
Acessible by all: FALSE
Pool 2
Segment: GROUP
Size: 64(0x40) KB
Allocatable: FALSE
Alloc Granule: 0KB
Alloc Alignment: 0KB
Acessible by all: FALSE
ISA Info:
ISA 1
Name: amdgcn-amd-amdhsa--gfx906
Machine Models: HSA_MACHINE_MODEL_LARGE
Profiles: HSA_PROFILE_BASE
Default Rounding Mode: NEAR
Default Rounding Mode: NEAR
Fast f16: TRUE
Workgroup Max Size: 1024(0x400)
Workgroup Max Size per Dimension:
x 1024(0x400)
y 1024(0x400)
z 1024(0x400)
Grid Max Size: 4294967295(0xffffffff)
Grid Max Size per Dimension:
x 4294967295(0xffffffff)
y 4294967295(0xffffffff)
z 4294967295(0xffffffff)
FBarrier Max Size: 32
*** Done ***
```

Start with the ROC examples documentation linked in the issue and the test.py matrix multiplication example, then compare its behavior with the reported ROCm 2.9 environment and numba -s output. Done would mean determining the compatible ROCm and Numba versions and documenting whether the example is expected to run.

Written by the indexing model from the issue text.