platform/upstream/openblas.git
4 years agoARM64: Improve DAXPY for ThunderX2
Ashwin Sekhar T K [Thu, 7 May 2020 16:14:05 +0000 (09:14 -0700)]
ARM64: Improve DAXPY for ThunderX2

Improve performance of DAXPY for ThunderX2
when the vector fits in L1 Cache.

4 years agoMerge pull request #2601 from martin-frbg/issue818
Martin Kroeker [Thu, 7 May 2020 08:12:33 +0000 (10:12 +0200)]
Merge pull request #2601 from martin-frbg/issue818

Undefine NAME/CNAME etc  in Makefile.system before defining them

4 years agoUndefine ASMNAME/NAME/CNAME before defining them
Martin Kroeker [Wed, 6 May 2020 22:31:32 +0000 (00:31 +0200)]
Undefine ASMNAME/NAME/CNAME before defining them

to avoid redefinition warning when environment variables like CFLAGS are being used (fixes #818)

4 years agoMerge pull request #55 from xianyi/develop
Martin Kroeker [Wed, 6 May 2020 22:27:14 +0000 (00:27 +0200)]
Merge pull request #55 from xianyi/develop

rebase

4 years agoMerge pull request #2597 from martin-frbg/appleclang
Martin Kroeker [Tue, 5 May 2020 11:55:08 +0000 (13:55 +0200)]
Merge pull request #2597 from martin-frbg/appleclang

Use Clang 9.0.0 miscompilation fix for corresponding AppleClang version as well

4 years agoDuplicate earlier Clang 9.0.0 workaround for corresponding Apple Clang version
Martin Kroeker [Tue, 5 May 2020 08:44:50 +0000 (10:44 +0200)]
Duplicate earlier Clang 9.0.0 workaround for corresponding Apple Clang version

As discussed on the original PR #2329, the "Apple Clang 11.0.3" that appears to be based the same LLVM release produces the same miscompilation of this file.

4 years agoMerge pull request #53 from xianyi/develop
Martin Kroeker [Fri, 1 May 2020 13:18:46 +0000 (15:18 +0200)]
Merge pull request #53 from xianyi/develop

rebase

4 years agoMerge pull request #2591 from RajalakshmiSR/testhalf
Martin Kroeker [Fri, 1 May 2020 07:59:39 +0000 (09:59 +0200)]
Merge pull request #2591 from RajalakshmiSR/testhalf

Add test for shgemm

4 years agoMake building the bfloat16 functions conditional on option BUILD_HALF (#2590)
Martin Kroeker [Fri, 1 May 2020 07:58:30 +0000 (09:58 +0200)]
Make building the bfloat16 functions conditional on option BUILD_HALF (#2590)

* make building the bfloat16 BLAS functions conditional on BUILD_HALF

* pass the BUILD_HALF option to gensymbol

* Pass BUILD_HALF as a compiler define for dynamic_arch builds

4 years agoMerge pull request #2586 from martin-frbg/miscfixes
Martin Kroeker [Wed, 29 Apr 2020 20:01:41 +0000 (22:01 +0200)]
Merge pull request #2586 from martin-frbg/miscfixes

Trivial fix for compiler warnings

4 years agoAdd test for shgemm
Rajalakshmi Srinivasaraghavan [Wed, 29 Apr 2020 18:40:34 +0000 (13:40 -0500)]
Add test for shgemm

This patch has Makefile changes to add test for shgemm which
compares sgemm and shgemm result.

4 years agoMerge pull request #52 from xianyi/develop
Martin Kroeker [Wed, 29 Apr 2020 12:36:15 +0000 (14:36 +0200)]
Merge pull request #52 from xianyi/develop

rebase

4 years agoMerge pull request #2585 from martin-frbg/mips64fix
Martin Kroeker [Tue, 28 Apr 2020 17:47:55 +0000 (19:47 +0200)]
Merge pull request #2585 from martin-frbg/mips64fix

Increase default BUFFER_SIZE on MIPS64

4 years agoFix compiler warnings
Martin Kroeker [Tue, 28 Apr 2020 08:43:12 +0000 (10:43 +0200)]
Fix compiler warnings

4 years agoIncrease BUFFER_SIZE on mips64 to match SGEMM parameters
Martin Kroeker [Tue, 28 Apr 2020 08:40:40 +0000 (10:40 +0200)]
Increase BUFFER_SIZE on mips64 to match SGEMM parameters

4 years agoMerge pull request #51 from xianyi/develop
Martin Kroeker [Tue, 28 Apr 2020 08:38:50 +0000 (10:38 +0200)]
Merge pull request #51 from xianyi/develop

rebase

4 years agoMerge pull request #2584 from martin-frbg/issue2583
Martin Kroeker [Tue, 28 Apr 2020 08:35:12 +0000 (10:35 +0200)]
Merge pull request #2584 from martin-frbg/issue2583

[WIP] Have CMAKE parse conditional lines in KERNEL files

4 years agoSilence a debug message
Martin Kroeker [Mon, 27 Apr 2020 14:27:09 +0000 (16:27 +0200)]
Silence a debug message

4 years agoHave CMAKE parse conditional lines in KERNEL files
Martin Kroeker [Mon, 27 Apr 2020 13:20:03 +0000 (15:20 +0200)]
Have CMAKE parse conditional lines in KERNEL files

Supports ifeq and ifneq, but requires both to have an else branch

4 years agoMerge pull request #2582 from martin-frbg/mips32fix
Martin Kroeker [Mon, 27 Apr 2020 07:18:34 +0000 (09:18 +0200)]
Merge pull request #2582 from martin-frbg/mips32fix

Increase BUFFER_SIZE on MIPS32 to accomodate SGEMM requirements

4 years agoIncrease default BUFFER_SIZE to accomodate SGEMM parameters
Martin Kroeker [Sun, 26 Apr 2020 20:21:05 +0000 (22:21 +0200)]
Increase default BUFFER_SIZE to accomodate SGEMM parameters

in response to compile-time warning from #2551

4 years agoMerge pull request #50 from xianyi/develop
Martin Kroeker [Sun, 26 Apr 2020 20:17:56 +0000 (22:17 +0200)]
Merge pull request #50 from xianyi/develop

rebase

4 years agoMerge pull request #2581 from martin-frbg/raji
Martin Kroeker [Sat, 25 Apr 2020 17:57:10 +0000 (19:57 +0200)]
Merge pull request #2581 from martin-frbg/raji

Fix travis configuration and update CONTRIBUTORS.md

4 years agoDrop the set -e from travis scripts
Martin Kroeker [Sat, 25 Apr 2020 14:18:54 +0000 (16:18 +0200)]
Drop the set -e from travis scripts

4 years agoUpdate CONTRIBUTORS.md
Martin Kroeker [Sat, 25 Apr 2020 11:51:44 +0000 (13:51 +0200)]
Update CONTRIBUTORS.md

4 years agoMerge pull request #2580 from martin-frbg/issue2538-3
Martin Kroeker [Fri, 24 Apr 2020 22:28:18 +0000 (00:28 +0200)]
Merge pull request #2580 from martin-frbg/issue2538-3

Increase POWER8 ZGEMM_R and use same R values for POWER9

4 years agoIncrease POWER8 ZGEMM_R and use same R values for POWER9
Martin Kroeker [Fri, 24 Apr 2020 19:46:54 +0000 (21:46 +0200)]
Increase POWER8 ZGEMM_R and use same R values for POWER9

fixes lapack-test zger failures seen in #2299 after application of my PR #2551

4 years agoMerge pull request #2578 from martin-frbg/issue2576
Martin Kroeker [Fri, 24 Apr 2020 12:32:46 +0000 (14:32 +0200)]
Merge pull request #2578 from martin-frbg/issue2576

Quote getarch include paths in prebuild.cmake

4 years agoQuote include paths for getarch to protect any embedded spaces
Martin Kroeker [Fri, 24 Apr 2020 08:30:44 +0000 (10:30 +0200)]
Quote include paths for getarch to protect any embedded spaces

4 years agoMerge pull request #49 from xianyi/develop
Martin Kroeker [Fri, 24 Apr 2020 08:21:48 +0000 (10:21 +0200)]
Merge pull request #49 from xianyi/develop

rebase

4 years agoxcode 11.4.1 for homebrew ?
Martin Kroeker [Thu, 23 Apr 2020 12:31:09 +0000 (14:31 +0200)]
xcode 11.4.1 for homebrew ?

4 years agoSwitch homebrew build env to new xcode 11.4
Martin Kroeker [Thu, 23 Apr 2020 08:54:46 +0000 (10:54 +0200)]
Switch homebrew build env to new xcode 11.4

default 11.3.1 in the github image is causing brew to fail with "outdated xcode" message

4 years agoMerge pull request #2571 from martin-frbg/issue2299
Martin Kroeker [Wed, 22 Apr 2020 16:27:13 +0000 (18:27 +0200)]
Merge pull request #2571 from martin-frbg/issue2299

Work around IDAMAX/IZAMAX bugs on POWER8BE with ELFv2 FreeBSD

4 years agoMerge pull request #2573 from martin-frbg/issue2572
Martin Kroeker [Wed, 22 Apr 2020 13:04:49 +0000 (15:04 +0200)]
Merge pull request #2573 from martin-frbg/issue2572

Enable cblas interfaces to GEMM3M in CMAKE builds

4 years agoLimit this fix to ELFv2 builds
Martin Kroeker [Wed, 22 Apr 2020 12:16:40 +0000 (14:16 +0200)]
Limit this fix to ELFv2 builds

4 years agoExport ELF_VERSION for use in powerpc kernel configurations
Martin Kroeker [Wed, 22 Apr 2020 12:14:20 +0000 (14:14 +0200)]
Export ELF_VERSION for use in powerpc kernel configurations

4 years agoAvoid duplicate printout of byte order and report ELF_VERSION
Martin Kroeker [Wed, 22 Apr 2020 12:12:27 +0000 (14:12 +0200)]
Avoid duplicate printout of byte order and report ELF_VERSION

4 years agoenable cblas interfaces to GEMM3M in CMAKE builds
Martin Kroeker [Wed, 22 Apr 2020 09:01:28 +0000 (11:01 +0200)]
enable cblas interfaces to GEMM3M in CMAKE builds

4 years agoMerge pull request #2569 from martin-frbg/issue2472-2
Martin Kroeker [Tue, 21 Apr 2020 18:26:53 +0000 (20:26 +0200)]
Merge pull request #2569 from martin-frbg/issue2472-2

Fix linker option passing for MSVS and ReLAPACK

4 years agoWork around POWER8BE bugs on FreeBSD (ELFv2)
Martin Kroeker [Tue, 21 Apr 2020 15:17:17 +0000 (17:17 +0200)]
Work around POWER8BE bugs on FreeBSD (ELFv2)

for #2299

4 years agoUse CMAKE_SHARED_LINKER_FLAGS to pass MSVC linker option
Martin Kroeker [Mon, 20 Apr 2020 20:30:51 +0000 (22:30 +0200)]
Use CMAKE_SHARED_LINKER_FLAGS to pass MSVC linker option

target_link_libraries does not work here according to issue 2472

4 years agoMerge pull request #48 from xianyi/develop
Martin Kroeker [Mon, 20 Apr 2020 19:51:59 +0000 (21:51 +0200)]
Merge pull request #48 from xianyi/develop

rebase

4 years agoMerge pull request #2565 from martin-frbg/mips24k
Martin Kroeker [Mon, 20 Apr 2020 15:13:53 +0000 (17:13 +0200)]
Merge pull request #2565 from martin-frbg/mips24k

Support MIPS32 24K family as P5600

4 years agoMerge pull request #2559 from RajalakshmiSR/shgemm
Martin Kroeker [Sun, 19 Apr 2020 20:09:55 +0000 (22:09 +0200)]
Merge pull request #2559 from RajalakshmiSR/shgemm

Add half precision gemm for bfloat16 in OpenBLAS

4 years agoMerge pull request #2568 from martin-frbg/azure-win
Martin Kroeker [Sun, 19 Apr 2020 17:06:33 +0000 (19:06 +0200)]
Merge pull request #2568 from martin-frbg/azure-win

Add a Windows/CL build job to the Azure CI

4 years agoAdd a Windows/CL build to the Azure Ci configuration
Martin Kroeker [Sun, 19 Apr 2020 17:04:33 +0000 (19:04 +0200)]
Add a Windows/CL build to the Azure Ci configuration

4 years agoMerge pull request #2567 from xianyi/revert-2566-azurewin
Martin Kroeker [Sun, 19 Apr 2020 17:01:58 +0000 (19:01 +0200)]
Merge pull request #2567 from xianyi/revert-2566-azurewin

Revert "Add Windows build job on Azure CI"

4 years agoRevert "Add Windows build job on Azure CI (#2566)"
Martin Kroeker [Sun, 19 Apr 2020 17:00:37 +0000 (19:00 +0200)]
Revert "Add Windows build job on Azure CI (#2566)"

This reverts commit e1e543b145ce6bef55e7a8ee4e3efff3e3d31cb2.

4 years agoAdd Windows build job on Azure CI (#2566)
Martin Kroeker [Sun, 19 Apr 2020 14:16:15 +0000 (16:16 +0200)]
Add Windows build job on Azure CI (#2566)

* Add Windows-CL build job on Azure

4 years agoDelete KERNEL.1004K
Martin Kroeker [Sun, 19 Apr 2020 13:44:30 +0000 (15:44 +0200)]
Delete KERNEL.1004K

4 years agoDelete KERNEL.24K
Martin Kroeker [Sun, 19 Apr 2020 13:44:19 +0000 (15:44 +0200)]
Delete KERNEL.24K

4 years agoRename KERNEL files to include MIPS prefix
Martin Kroeker [Sun, 19 Apr 2020 13:43:54 +0000 (15:43 +0200)]
Rename KERNEL files to include MIPS prefix

4 years agoUpdate getarch.c
Martin Kroeker [Sun, 19 Apr 2020 12:55:31 +0000 (14:55 +0200)]
Update getarch.c

4 years agoUpdate getarch.c
Martin Kroeker [Sun, 19 Apr 2020 11:52:58 +0000 (13:52 +0200)]
Update getarch.c

4 years agoRename the FORCE entries for 24K and 1004K to include the MIPS prefix
Martin Kroeker [Sun, 19 Apr 2020 11:22:19 +0000 (13:22 +0200)]
Rename the FORCE entries for 24K and 1004K to include the MIPS prefix

4 years agoUpdate kernel.cmake
Martin Kroeker [Sun, 19 Apr 2020 06:10:26 +0000 (08:10 +0200)]
Update kernel.cmake

4 years agoDisable RPCC macro on MIPS24K
Martin Kroeker [Sun, 19 Apr 2020 05:21:48 +0000 (07:21 +0200)]
Disable RPCC macro on MIPS24K

4 years agoUpdate README.md
Martin Kroeker [Sun, 19 Apr 2020 04:54:52 +0000 (06:54 +0200)]
Update README.md

4 years agoUpdate TargetList.txt
Martin Kroeker [Sun, 19 Apr 2020 04:51:57 +0000 (06:51 +0200)]
Update TargetList.txt

4 years agoAdd compiler options for MIPS32 24K/1004K
Martin Kroeker [Sun, 19 Apr 2020 04:50:51 +0000 (06:50 +0200)]
Add compiler options for MIPS32 24K/1004K

4 years agorename 1004K, 24K to MIPS1004K, MIPS24K to avoid identifier naming problem
Martin Kroeker [Sat, 18 Apr 2020 21:50:23 +0000 (23:50 +0200)]
rename 1004K, 24K to MIPS1004K, MIPS24K to avoid identifier naming problem

4 years agoUpdate kernel.cmake
Martin Kroeker [Sat, 18 Apr 2020 19:36:28 +0000 (21:36 +0200)]
Update kernel.cmake

4 years agoUpdate common_macro.h
Martin Kroeker [Sat, 18 Apr 2020 19:34:14 +0000 (21:34 +0200)]
Update common_macro.h

4 years agoTypo fix in MIPS24K addition
Martin Kroeker [Sat, 18 Apr 2020 19:16:49 +0000 (21:16 +0200)]
Typo fix in MIPS24K addition

4 years agoAdd MIPS24K support
Martin Kroeker [Sat, 18 Apr 2020 19:10:18 +0000 (21:10 +0200)]
Add MIPS24K support

4 years agoHandle MIPS24K like P5600
Martin Kroeker [Sat, 18 Apr 2020 19:09:32 +0000 (21:09 +0200)]
Handle  MIPS24K like P5600

and allow enforcing TARGET=1004K as well (omission from earlier 1004K merge and later introduction of TARGET check)

4 years agoMerge pull request #47 from xianyi/develop
Martin Kroeker [Sat, 18 Apr 2020 19:07:14 +0000 (21:07 +0200)]
Merge pull request #47 from xianyi/develop

rebase

4 years agoUpdate common_macro.h
Martin Kroeker [Sat, 18 Apr 2020 14:04:38 +0000 (16:04 +0200)]
Update common_macro.h

4 years agoUse generic kernels for ishama,shasum,shdot,shrot
Martin Kroeker [Sat, 18 Apr 2020 13:53:51 +0000 (15:53 +0200)]
Use generic kernels  for ishama,shasum,shdot,shrot

4 years agoUse generic codes for shamax and shcopy
Martin Kroeker [Sat, 18 Apr 2020 10:52:51 +0000 (12:52 +0200)]
Use generic codes for shamax and shcopy

4 years agoDefine AXPBY_K fallback for float16
Martin Kroeker [Sat, 18 Apr 2020 09:10:15 +0000 (11:10 +0200)]
Define AXPBY_K fallback for float16

4 years agoUse generic axpy.c for SHAXPY as x86 lacks saxpy.c
Martin Kroeker [Sat, 18 Apr 2020 09:07:16 +0000 (11:07 +0200)]
Use generic axpy.c for SHAXPY as x86 lacks saxpy.c

4 years agouse saxpy.c instead of axpy.S for SHAXPY
Martin Kroeker [Fri, 17 Apr 2020 20:27:58 +0000 (22:27 +0200)]
use saxpy.c instead of axpy.S for SHAXPY

4 years agocmake fixes
Rajalakshmi Srinivasaraghavan [Fri, 17 Apr 2020 18:35:17 +0000 (13:35 -0500)]
cmake fixes

4 years agoMerge pull request #2563 from zelong-1024/develop
Martin Kroeker [Thu, 16 Apr 2020 09:45:32 +0000 (11:45 +0200)]
Merge pull request #2563 from zelong-1024/develop

[OpenBLAS]: benchmark error of potrf

4 years ago[OpenBLAS]: benchmark error of potrf
l00536773 [Thu, 16 Apr 2020 02:55:10 +0000 (10:55 +0800)]
[OpenBLAS]: benchmark error of potrf
[description]: when the matrix size goes higher than 5800 during the cpotrf test, error info, such as "Potrf info = 5679", will be returned on ARM64 and x86 machines. Uplo = L & F.
[solution]: changed the func for building the matrix so that the complex Hermitian matrix can stay positive definite during the computation.
[dts]:

4 years agoFix warnings in clang and export symbol
Rajalakshmi Srinivasaraghavan [Thu, 16 Apr 2020 00:15:23 +0000 (19:15 -0500)]
Fix warnings in clang and export symbol

4 years agoMerge pull request #2557 from martin-frbg/dronebadge
Martin Kroeker [Wed, 15 Apr 2020 18:23:43 +0000 (20:23 +0200)]
Merge pull request #2557 from martin-frbg/dronebadge

Update and reformat README

4 years agoMerge pull request #2556 from martin-frbg/epicdrone
Martin Kroeker [Wed, 15 Apr 2020 18:23:17 +0000 (20:23 +0200)]
Merge pull request #2556 from martin-frbg/epicdrone

Add a drone.io multithread test for x86_64

4 years agoRestore USE_OPENMP in the x86 thread test
Martin Kroeker [Wed, 15 Apr 2020 17:26:12 +0000 (19:26 +0200)]
Restore USE_OPENMP in the x86 thread test

4 years agoMove all 19.04-based jobs back to ubuntu 18.04
Martin Kroeker [Wed, 15 Apr 2020 15:38:33 +0000 (17:38 +0200)]
Move all 19.04-based jobs back to ubuntu 18.04

4 years agoFix DYNAMIC_ARCH compilation errors
Rajalakshmi Srinivasaraghavan [Wed, 15 Apr 2020 14:09:50 +0000 (09:09 -0500)]
Fix DYNAMIC_ARCH compilation errors

4 years agoUpdate header
Rajalakshmi Srinivasaraghavan [Wed, 15 Apr 2020 03:58:39 +0000 (22:58 -0500)]
Update header

4 years agoBuild shgemm for all architecture
Rajalakshmi Srinivasaraghavan [Wed, 15 Apr 2020 01:38:53 +0000 (20:38 -0500)]
Build shgemm for all architecture

4 years agoRFC : Add half precision gemm for bfloat16 in OpenBLAS
Rajalakshmi Srinivasaraghavan [Tue, 14 Apr 2020 19:55:08 +0000 (14:55 -0500)]
RFC : Add half precision gemm for bfloat16 in OpenBLAS

This patch adds support for bfloat16 data type matrix multiplication kernel.
For architectures that don't support bfloat16, it is defined as unsigned short
(2 bytes).  Default unroll sizes can be changed as per architecture as done for
SGEMM and for now 8 and 4 are used for M and N.  Size of ncopy/tcopy can be
changed as per architecture requirement and for now, size 2 is used.

Added shgemm in kernel/power/KERNEL.POWER9 and tested in powerpc64le and
powerpc64.  For reference, added a small test compare_sgemm_shgemm.c to compare
sgemm and shgemm output.

This patch does not cover OpenBLAS test, benchmark and lapack tests for shgemm.
Complex type implementation can be discussed and added once this is approved.

4 years agotry x86_64 test without openmp
Martin Kroeker [Tue, 14 Apr 2020 17:18:35 +0000 (19:18 +0200)]
try x86_64 test without openmp

4 years agoAdd drone.io badge, mention EMAG8180 support, reformat the DYNAMIC_ARCH paragraph
Martin Kroeker [Tue, 14 Apr 2020 08:53:28 +0000 (10:53 +0200)]
Add drone.io badge, mention EMAG8180 support, reformat the DYNAMIC_ARCH paragraph

4 years agoAdd a multithread test for x86_64
Martin Kroeker [Mon, 13 Apr 2020 20:46:12 +0000 (22:46 +0200)]
Add a multithread test for x86_64

4 years agoMerge pull request #2553 from martin-frbg/issue2444
Martin Kroeker [Mon, 13 Apr 2020 19:28:59 +0000 (21:28 +0200)]
Merge pull request #2553 from martin-frbg/issue2444

Add a read memory barrier to the traversal of the buffer slot list

4 years agoMerge pull request #2555 from martin-frbg/issue1137
Martin Kroeker [Mon, 13 Apr 2020 16:29:56 +0000 (18:29 +0200)]
Merge pull request #2555 from martin-frbg/issue1137

Handle unaligned data in the SSE2 copy kernel

4 years agoARMV7 does not support DMB ISHLD, use DMB ISH
Martin Kroeker [Mon, 13 Apr 2020 13:56:31 +0000 (15:56 +0200)]
ARMV7 does not support DMB ISHLD, use DMB ISH

4 years agoConvert aligned moves to unaligned
Martin Kroeker [Mon, 13 Apr 2020 12:58:52 +0000 (14:58 +0200)]
Convert aligned moves to unaligned

should have no performance impact on reasonably modern cpus and fixes occasional crashes in actual user code.

4 years agoAdd a read barrier in the traversing of the buffer list
Martin Kroeker [Mon, 13 Apr 2020 10:34:02 +0000 (12:34 +0200)]
Add a read barrier in the traversing of the buffer list

Needed on systems with weak memory ordering - the inferior, partially working fix from #2544 was already removed in #2551

4 years agoAdd (empty) read barrier definition
Martin Kroeker [Mon, 13 Apr 2020 10:24:10 +0000 (12:24 +0200)]
Add (empty) read barrier definition

4 years agoAdd (empty) read barrier definition
Martin Kroeker [Mon, 13 Apr 2020 10:22:35 +0000 (12:22 +0200)]
Add (empty) read barrier definition

4 years agoAdd (empty) read barrier definition
Martin Kroeker [Mon, 13 Apr 2020 10:18:48 +0000 (12:18 +0200)]
Add (empty) read barrier definition

4 years agoAdd (empty) read barrier definition
Martin Kroeker [Mon, 13 Apr 2020 10:17:41 +0000 (12:17 +0200)]
Add (empty) read barrier definition

4 years agoAdd read barrier definition
Martin Kroeker [Mon, 13 Apr 2020 10:16:44 +0000 (12:16 +0200)]
Add read barrier definition

4 years agoAdd read barrier definition
Martin Kroeker [Mon, 13 Apr 2020 10:14:58 +0000 (12:14 +0200)]
Add read barrier definition

4 years agoAdd read barrier definition
Martin Kroeker [Mon, 13 Apr 2020 10:14:06 +0000 (12:14 +0200)]
Add read barrier definition