Merge remote-tracking branch 'origin/sycl' into private/abatashe/basic_abi_checks

* origin/sycl: (6966 commits)
  [NFC][SYCL] Do not add `sycl_device` attribute to OpenCL kernel (intel#1439)
  [SYCL][NFC] Move SYCL pipe metadata call to be inside the null check for D (intel#1436)
  [SYCL][NFC] Move template function definition to .h file (intel#1433)
  [SYCL] Don't expose vector of booleans as storage format (intel#1419)
  [SYCL] Don't throw exceptions from destructors (intel#1378)
  [BuildBot] Add support for multiple CMake options (intel#1434)
  [SYCL][NFC] Fix warning inline namespace reopened as no-inline (intel#1435)
  [SYCL] Check if loadPlugin returns a nullptr (intel#1411)
  [SYCL] Release notes for February'20 SYCL implementation update (intel#1400)
  [SYCL][Doc] Improve contribution guidelines (intel#1422)
  [BuildBot] Add --cmake-opts option to configure.py script (intel#1430)
  [SYCL] Enable non-read-write memory object mapping in scheduler (intel#1390)
  [SYCL][Driver] Do not store AOT-specific options in the image descriptor (intel#1428)
  [Driver][NFC] Fix string problem used for tracking duplicate triples (intel#1424)
  [SYCL][NFC] Use the non-deprecated setAlignment() in LowerWGScope (intel#1420)
  [SYCL][NFC] Fix formatting in GetStartedGuide (intel#1417)
  [NFC] Move CODEOWNERS file to enable GitHub automation (intel#1418)
  [SYCL] Add test for private array init by zeroes (intel#1402)
  [Driver][SYCL][FPGA] Adjust device and AOCX link order for FPGA (intel#1389)
  [SYCL] Change runtime check to assert in program_manager.cpp (intel#1413)
  ...

Author: Alexander Batashev

.arcconfig

@@ -1,4 +1,6 @@
 {
+  "phabricator.uri" : "https://reviews.llvm.org/",
   "repository.callsign" : "G",
-  "conduit_uri" : "https://reviews.llvm.org/"
+  "conduit_uri" : "https://reviews.llvm.org/",
+  "base": "git:HEAD^"
 }

.clang-tidy

@@ -14,4 +14,6 @@ CheckOptions:
     value:           CamelCase
   - key:             readability-identifier-naming.VariableCase
     value:           CamelCase
+  - key:             readability-identifier-naming.IgnoreMainLikeFunctions
+    value:           1
 

.git-blame-ignore-revs

@@ -16,3 +16,9 @@
 
 # r280751: [Coding style change][lldb] Moved LLDB code base to use LLVM style
 b9c1b51e45b845debb76d8658edabca70ca56079
+
+# r302421: That change incorrectly changed line endings in some libc++ files
+9669df28d4fd3c52d09f451186bd217cdc3322c0
+
+# r302496: That is the revert of r302421
+ff63090b0e1072bd398b8efef8ae2291613a6ec9

.github/CODEOWNERS

@@ -0,0 +1,19 @@
+clang/ @erichkeane, @Fznamznon
+
+clang/**/Driver @mdtoguchi @AGindinson
+
+llvm-spirv/ @AlexeySotkin, @AlexeySachkov
+
+opencl-aot/ @dm-vodopyanov, @AlexeySachkov, @romanovvlad
+
+libdevice/ @asavonic, @vzakhari
+
+sycl/doc/extensions/ @mkinsner, @jbrodman
+
+sycl/doc/ @pvchupin, @kbobrovs
+
+sycl/ @romanovvlad, @bader
+
+xpti/ @tovinkere, @andykaylor
+
+* @bader

.github/workflows/clang-format.yml

@@ -0,0 +1,30 @@
+name: clang-format-check
+
+on:
+  pull_request:
+    branches:
+    - sycl
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+      with:
+        fetch-depth: 2
+
+    - name: Get clang-format first
+      run: sudo apt-get install -yqq clang-format-9
+
+    - name: Run clang-format for the patch
+      run: |
+        git diff -U0 --no-color ${GITHUB_SHA}^1 ${GITHUB_SHA} -- | ./clang/tools/clang-format/clang-format-diff.py -p1 -binary clang-format-9 > ./clang-format.patch
+
+    # Add patch with formatting fixes to CI job artifacts
+    - uses: actions/upload-artifact@v1
+      with:
+        name: clang-format-patch
+        path: ./clang-format.patch
+
+    - name: Check if clang-format patch is empty
+      run: bash -c "if [ -s ./clang-format.patch ]; then cat ./clang-format.patch; exit 1; fi"

.github/workflows/gh_pages.yml

@@ -0,0 +1,47 @@
+name: Generate Doxygen documentation
+
+on:
+  schedule:
+  - cron: 0 1 * * *
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+      with:
+        ref: sycl
+        path: repo
+    - name: Install deps
+      run: |
+        sudo apt-get install -y doxygen graphviz ssh ninja-build
+        sudo pip3 install sphinx recommonmark sphinx_markdown_tables
+    - name: Build Docs
+      run: |
+        mkdir -p $GITHUB_WORKSPACE/build
+        cd $GITHUB_WORKSPACE/build
+        python $GITHUB_WORKSPACE/repo/buildbot/configure.py -w $GITHUB_WORKSPACE \
+        -s $GITHUB_WORKSPACE/repo -o $GITHUB_WORKSPACE/build -t Release --docs
+        cmake --build . --target doxygen-sycl
+        cmake --build . --target docs-sycl-html
+    - name: Deploy
+      env:
+        SSH_KEY: ${{secrets.ACTIONS_DEPLOY_KEY}}
+      run: |
+        mkdir -p ~/.ssh
+        echo "$SSH_KEY" > ~/.ssh/id_rsa
+        chmod 600 ~/.ssh/id_rsa
+        eval "$(ssh-agent -s)"
+        ssh-add -k ~/.ssh/id_rsa
+        git clone [email protected]:intel/llvm-docs.git docs
+        cd $GITHUB_WORKSPACE/docs
+        git rm -rf .
+        touch .nojekyll
+        yes | \cp -rf $GITHUB_WORKSPACE/build/tools/sycl/doc/html/* .
+        mkdir doxygen
+        yes | \cp -rf $GITHUB_WORKSPACE/build/tools/sycl/doc/doxygen/html/* doxygen/
+        git config --global user.name "iclsrc"
+        git config --global user.email "[email protected]"
+        git add .
+        git diff-index --quiet HEAD || git commit -m "Update docs" -s
+        git push

.github/workflows/linux_post_commit.yml

@@ -0,0 +1,70 @@
+name: Linux Post Commit Checks
+
+on:
+  push:
+    branches:
+      - sycl
+jobs:
+   check:
+     runs-on: ubuntu-latest
+     strategy:
+       fail-fast: false
+       matrix:
+         config: ["Default", "SharedLibs", "Assertions"]
+
+     steps:
+     - uses: actions/checkout@v2
+       with:
+         path: src
+     - name: Install Ubuntu deps
+       run: sudo apt install -y ninja-build
+     - name: Configure
+       run: |
+         CONFIG=${{ matrix.config }}
+         case $CONFIG in
+             Default)
+                 export ARGS=""
+                 ;;
+             SharedLibs)
+                 export ARGS="--shared-libs"
+                 ;;
+             Assertiosn)
+                 export ARGS="--assertions"
+                 ;;
+         esac
+         mkdir -p $GITHUB_WORKSPACE/build
+         cd $GITHUB_WORKSPACE/build
+         python3 $GITHUB_WORKSPACE/src/buildbot/configure.py -w $GITHUB_WORKSPACE \
+         -s $GITHUB_WORKSPACE/src -o $GITHUB_WORKSPACE/build -t Release --no-ocl $ARGS
+     - name: Compile
+       run: |
+         python3 $GITHUB_WORKSPACE/src/buildbot/compile.py -w  $GITHUB_WORKSPACE \
+         -s  $GITHUB_WORKSPACE/src -o $GITHUB_WORKSPACE/build
+     - name: check-llvm
+       if: always()
+       run: |
+         python3 $GITHUB_WORKSPACE/src/buildbot/check.py -w  $GITHUB_WORKSPACE \
+         -s  $GITHUB_WORKSPACE/src -o $GITHUB_WORKSPACE/build -t check-llvm
+     - name: check-clang
+       if: always()
+       run: |
+         python3 $GITHUB_WORKSPACE/src/buildbot/check.py -w  $GITHUB_WORKSPACE \
+         -s  $GITHUB_WORKSPACE/src -o $GITHUB_WORKSPACE/build -t check-clang
+     - name: check-sycl
+       if: always()
+       run: |
+         python3 $GITHUB_WORKSPACE/src/buildbot/check.py -w  $GITHUB_WORKSPACE \
+         -s  $GITHUB_WORKSPACE/src -o $GITHUB_WORKSPACE/build -t check-sycl
+     - name: check-llvm-spirv
+       if: always()
+       run: |
+         python3 $GITHUB_WORKSPACE/src/buildbot/check.py -w  $GITHUB_WORKSPACE \
+         -s  $GITHUB_WORKSPACE/src -o $GITHUB_WORKSPACE/build -t check-llvm-spirv
+     - name: Pack
+       run: tar -czvf llvm_sycl.tar.gz -C $GITHUB_WORKSPACE/build/install .
+     - name: Upload artifacts
+       uses: actions/upload-artifact@v1
+       with:
+         name: sycl_linux_${{ matrix.config }}
+         path: llvm_sycl.tar.gz
+

CONTRIBUTING.md

@@ -1,9 +1,8 @@
 # Contributing
 
 ## License
-Intel Project for LLVM* technology is licensed under the terms of the
-Apache-2.0 with LLVM-exception license (
-[LICENSE.txt](https://github.com/intel/llvm/blob/intel/llvm/LICENSE.TXT))
+Intel Project for LLVM\* technology is licensed under the terms of the
+Apache-2.0 with LLVM-exception license ([LICENSE.txt](llvm/LICENSE.TXT))
 to ensure our ability to contribute this project to the LLVM project
 under the same license.
 
@@ -63,32 +62,57 @@ Then you just add a line to every git commit message:
 
 Use your real name (sorry, no pseudonyms or anonymous contributions.)
 
-If you set your `user.name` and `user.email` git configs, you can sign your commit automatically with `git commit -s`.
+If you set your `user.name` and `user.email` git configs, you can sign your
+commit automatically with `git commit -s`.
 
 ## Contribution process
 
 ### Development
 
- - Create a personal fork of the project on GitHub.
- - Use **sycl** branch as baseline for your changes.
- - Prepare your patch (follow [LLVM coding standards](https://llvm.org/docs/CodingStandards.html)).
- - Build the project and run all tests (see [GetStartedWithSYCLCompiler.md](https://github.com/intel/llvm/blob/sycl/sycl/doc/GetStartedWithSYCLCompiler.md))
+**NB**: For any changes not related to DPC++, but rather to LLVM in general, it
+is strongly encouraged that you submit the patch to https://llvm.org/ directly.
+See [LLVM contribution guidelines](https://llvm.org/docs/Contributing.html)
+for more information.
+
+- Create a personal fork of the project on GitHub
+  - For the DPC++ Compiler project, use **sycl** branch as baseline for your
+    changes. See [Get Started Guide](sycl/doc/GetStartedGuide.md).
+- Prepare your patch (follow
+  [LLVM coding standards](https://llvm.org/docs/CodingStandards.html)).
+  [clang-format](https://clang.llvm.org/docs/ClangFormat.html) and [clang-tidy](
+  https://clang.llvm.org/extra/clang-tidy/) tools can be integrated into your
+  workflow to ensure formatting and stylistic compliance of your changes.
+- Build the project and run all tests.
+
+### Commit message
+
+- When writing your commit message, please make sure to follow
+  [LLVM developer policies](
+  https://llvm.org/docs/DeveloperPolicy.html#commit-messages) on the subject.
+- For any DPC++-related commit, the `[SYCL]` tag should be present in the
+  commit message title. To a reasonable extent, additional tags can be used
+  to signify the component changed, e.g.: `[PI]`, `[CUDA]`, `[Doc]`.
 
 ### Review and acceptance testing
 
- - Create a pull request for your changes following [Creating a pull request instructions](https://help.github.com/articles/creating-a-pull-request/).
- - When the pull request is created signed-off check is done.
-     - **check_pr** - verifies that the signed-off mark is added to each commit message.
- - Once the pull request is approved by an Intel representative, build and functional testing are started.
-     - **sycl-ubu-x64-pr** - runs all LIT tests on machine with OpenCL runtimes for CPU and GPU.
- - Approval is lost once the PR branch is updated. New approval and checks rerun are required.
- - Once approval is received and all checks pass, the pull request is ready to be merged.
+- Create a pull request for your changes following [Creating a pull request
+instructions](https://help.github.com/articles/creating-a-pull-request/).
+- CI will run a signed-off check as soon as your PR is created - see the
+**check_pr** CI action results.
+- CI will run several build and functional testing checks as soon as the PR is
+approved by an Intel representative.
+  - A new approval is needed if the PR was updated (e.g. during code review).
+- Once the PR is approved and all checks have passed, the pull request is
+ready for merge.
 
 ### Merge
 
-Merge of pull request is done only by project maintainers. There are three options:
- - [Rebase and merge] The preferable choice for PRs containing a single commit.
- - [Squash and merge] Used when there are multiple commits in the PR. 
-   Squashing is done to shorten history and make sure that the project is buildable on any commit.
- - [Create a merge commit] Used for pull down PRs to avoid duplication of
-   LLVM commits.
+Project maintainers merge pull requests using one of the following options:
+- [Rebase and merge] The preferable choice for PRs containing a single commit
+- [Squash and merge] Used when there are multiple commits in the PR
+  - Squashing is done to make sure that the project is buildable on any commit
+- [Create a merge commit] Used for LLVM pull-down PRs to preserve hashes of the
+commits pulled from the LLVM community repository
+
+
+*Other names and brands may be claimed as the property of others.

README.md

@@ -1,23 +1,28 @@
-# Intel Project for LLVM* technology
+# Intel Project for LLVM\* technology
 
 ## Introduction
 
 Intel staging area for llvm.org contribution.
 Home for Intel LLVM-based projects:
- - SYCL* Compiler and Runtimes - compiler and runtime libraries for SYCL ([https://www.khronos.org/sycl/](https://www.khronos.org/sycl/)). See **sycl** branch.
+ - oneAPI Data Parallel C++ compiler - see **sycl** branch. More information on
+   oneAPI and DPC++ is available at
+([https://www.oneapi.com/](https://www.oneapi.com/))
 
 ## License
 See [LICENSE.txt](sycl/LICENSE.TXT) for details.
 
-
 ## Contributing
 See [CONTRIBUTING.md](CONTRIBUTING.md) for details.
 
 ## Sub-projects Documentation
- - SYCL Compiler and Runtimes - See [GetStartedWithSYCLCompiler.md](sycl/doc/GetStartedWithSYCLCompiler.md)
+ - oneAPI Data Parallel C++ compiler - See
+   [GetStartedGuide.md](sycl/doc/GetStartedGuide.md)
+
+## DPC++ extensions
 
-*Other names and brands may be claimed as the property of others.
+DPC++ is an open, cross-architecture language built upon the ISO C++ and Khronos
+SYCL\* standards. DPC++ extends these standards with a number of extensions,
+which can be found in [sycl/doc/extensions](sycl/doc/extensions) directory.
 
-## SYCL Extension Proposal Documents
+\*Other names and brands may be claimed as the property of others.
 
-See [sycl/doc/extensions](sycl/doc/extensions)