AOMP Release 0.6-2

This release uses the release_80 stable release of clang/llvm/lld/openmp repositories. The artifacts for this release include the patches to the release_80 repos to support openmp for amdgcn for release 0.6-2

Here are the fixes for 0.6-2

• Fixed issue with constant size teams and threads.
• Moved to the stable clang/llvm 8.0 code base
• Fixed code in deviceRTLs/amdgcn that set Max_Warp_Number to 16, was 64
• Enable Float16 for 0.6-2, disabled by default in release_80 merge
• Disable META data opt, and provide evar AMDGPU_ENABLE_META_OPT_BUG to enable
• Add archive handling for bc linking.
• For performance, rewrite select_outline_wrapper calls, to be direct calls.
  Example: change the generated from:
  @_HASHW_DeclareSharedMemory_cpp__omp_outlined___wrapper =
  local_unnamed_addr addrspace(4) constant i64 -4874776124079246075
  call void @select_outline_wrapper(i16 0, i32 %6, i64 -4874776124079246075)
  to:
  call void @DeclareSharedMemory_cpp__omp_outlined___wrapper(i16 0, i32 %6)
• In release_80, Loop_tripcount API is now used, so we need to limit num_groups/teams
  to no more than Max_Teams, fixes assertok_error, and snap4
  Also handle num_teams clause inside loop_tripcount logic.
• BALLOT_SYNC macro replaced with ACTIVEMASK in release_80

AOMP Release 0.6-1

Changes from 0.6-0 to 0.6-1:

• Disabled SILoadStoreOptimizer pass to work around 64 bit address calculation issue

• Added 6 new device APIs as extentions to OpenMP device apis

  • omp_ext_get_warp_id
  • omp_ext_get_lane_id
  • omp_ext_get_master_thread_id
  • omp_ext_get_smid
  • omp_ext_is_spmd_mode
  • omp_ext_get_active_threads_mask

• rtl get_launch_vals added, algorithm rewrite for threads, teams computation

  • Throttle code for teams and threads off by default, enabled with THREAD_TEAM_THROTTLE

• Added support for an LLC and OPT specific env-var AOMP_LLC_ARGS AOMP_OPT_ARGS

  • Allows adding compiler options to opt and llc via env-var, useful for triage, dumps, and debug.

• Added clang-unbundle-archive tool.

• Added support for device library archives in clang when using -l flag.

• Updated llvm-link to work with archives of .bc components

• Added new method AddStaticDeviceLibs to CommonArgs.cpp that searches for static device
  libraries using -l and -L command line options in a way similar to the search method used for
  host libraries including which directories to search for. The differences from host search are:

  • Searches look for names that specify the architecture and/or GPU
  • Searches look in the libdevice subdirectory of each host directory path
  • Searches look for filenames with .a suffix before searching for .bc suffix

• Cleanup of aomp build scripts including split of llvm component into llvm, clang, and lld.

• Fix where llvm-config is found during build

• Added installed binaries from llvm to help with clang lit testing

• New build script for comgr. This is not part of the compiler build yet. Developers and those building from source can run build_comgr.sh

• Do not build hip runtime for ppc and arm builds.

• Added two new smoke tests and improved automation of smoke tests

• Corrected mymcpu and mygpu for vega20

AOMP Release 0.6-0

This is the initial release of AOMP.

AOMP is the new name for HCC2. The last HCC2 release was HCC2 0.5-4.
Changes from HCC2 0.5-4

• AOMP is built from sources for ROCm 2.1.
• AOMP can build for Nvidia cards so install of CUDA 10 SDK is required.
• AOMP needs to build hcc for proper build of hip.

Two of the openmpapps are known to fail. We are working to fix this in 0.6-1.

If you built aomp from source, it will default install into $HOME/rocm/aomp. This package will install into /opt/rocm/aomp. Many of the samples will look first in $HOME/rocm/aomp. To override this,

export AOMP=/opt/rocm/aomp