Enable OSX (Intel, Apple Silicon Builds) (#776)

Update pinned pytorch version. Will submit a follow on PR to bump.
Also update artifacts directory

.github/workflows/buildManylinux.yml

@@ -32,6 +32,24 @@ jobs:
         python -m pip install wheel
         ./build_tools/python_deploy/build_linux_packages.sh
 
+    name: MacOS Build
+    runs-on: macos-latest
+    steps:
+    - name: Get torch-mlir
+      uses: actions/checkout@v2
+      with:
+        submodules: 'true'
+    - uses: ./.github/actions/setup-build
+      with:
+        cache-suffix: ''
+    - name: Build Python wheels and smoke test.
+      run: |
+        cd $GITHUB_WORKSPACE
+        python -m pip install wheel
+        ./build_tools/python_deploy/install_macos_deps.sh
+        python_versions="3.9 3.10" ./build_tools/python_deploy/build_macos_packages.sh
+
+
     # If we were given a release_id, then upload the package we just built
     # to the github releases page.
     - name: Upload Release Assets (if requested)

build_tools/python_deploy/build_macos_packages.sh

@@ -60,18 +60,18 @@ function run() {
 }
 
 function build_torch_mlir() {
-  python -m pip install -r /main_checkout/torch-mlir/requirements.txt
+  python -m pip install -r $repo_root/requirements.txt --extra-index-url https://download.pytorch.org/whl/nightly/cpu
   CMAKE_GENERATOR=Ninja \
   MACOSX_DEPLOYMENT_TARGET=11.0 \
   CMAKE_OSX_ARCHITECTURES="arm64;x86_64" \
-  python -m pip wheel -v -w /wheelhouse /main_checkout/torch-mlir/
+  python -m pip wheel -v -w $output_dir $repo_root --extra-index-url https://download.pytorch.org/whl/nightly/cpu
 }
 
 function clean_wheels() {
   local wheel_basename="$1"
   local python_version="$2"
   echo ":::: Clean wheels $wheel_basename $python_version"
-  rm -f /wheelhouse/${wheel_basename}-*-${python_version}-*.whl
+  rm -f $output_dir/${wheel_basename}-*-${python_version}-*.whl
 }
 
 run

pyproject.toml

@@ -16,6 +16,6 @@ requires = [
     # artifacts.
     # TODO: Come up with a better way to pin the version.
     "numpy",
-    "torch==1.12.0.dev20220419+cpu",
+    "torch==1.12.0.dev20220420",
 ]
 build-backend = "setuptools.build_meta"