Add an M1-based OSX crossbuild and a NeoverseN1 build to CIRRUS CI (#3997)

* Add an M1-based OSX crossbuild and a NeoverseN1 build (plus Windows//LLVM commented out for now)

.cirrus.yml

@@ -2,9 +2,65 @@ macos_instance:
   image: ghcr.io/cirruslabs/macos-monterey-xcode:latest
 
 task:
+  name: AppleM1/LLVM
   compile_script:
   - brew install llvm
   - export PATH=/opt/homebrew/opt/llvm/bin:$PATH
   - export LDFLAGS="-L/opt/homebrew/opt/llvm/lib"
   - export CPPFLAGS="-I/opt/homebrew/opt/llvm/include"
   - make TARGET=VORTEX USE_OPENMP=1 CC=clang
+
+macos_instance:
+  image: ghcr.io/cirruslabs/macos-monterey-xcode:13.4
+task:
+  name: AppleM1/LLVM x86_64 xbuild
+  compile_script:
+  - #brew install llvm
+  - export #PATH=/opt/homebrew/opt/llvm/bin:$PATH
+  - export #LDFLAGS="-L/opt/homebrew/opt/llvm/lib"
+  - export #CPPFLAGS="-I/opt/homebrew/opt/llvm/include" 
+  - export ARCHS="i386 x86_64"
+  - export ARCHS_STANDARD="i386 x86_64"
+  - export ARCHS_STANDARD_32_64_BIT="i386 x86_64"
+  - export ARCHS_STANDARD_64_BIT=x86_64
+  - export ARCHS_STANDARD_INCLUDING_64_BIT="i386 x86_64"
+  - export ARCHS_UNIVERSAL_IPHONE_OS="i386 x86_64"
+  - export VALID_ARCHS="i386 x86_64"
+  - #find /Applications/Xcode-13.4.1.app -name libunwind.dylib
+  - export CC=/Applications/Xcode-13.4.1.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang
+  - export CFLAGS="-O2 -unwindlib=none -Wno-macro-redefined -isysroot /Applications/Xcode-13.4.1.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator15.5.sdk -arch x86_64 -miphoneos-version-min=10.0"
+  - make TARGET=CORE2 DYNAMIC_ARCH=1 NUM_THREADS=32 HOSTCC=clang NOFORTRAN=1
+  always:
+    config_artifacts:
+      path: "*conf*"
+      type: text/plain
+#  lib_artifacts:
+#    path: "libopenblas*"
+#    type: application/octet-streamm
+
+
+task:
+  name: NeoverseN1
+  arm_container:
+    image: node:latest
+  compile_script:
+  - make
+  
+
+#task:
+#  name: Windows/LLVM16     --- too slow ---
+#  windows_container:
+#    image: cirrusci/windowsservercore:cmake-2021.12.07
+#  install_script: 
+#    - choco list --localonly
+#    - choco install -y llvm
+#    - # choco install -y cmake --installargs '"ADD_CMAKE_TO_PATH=System"'
+#    - choco install -y ninja
+#    - refreshenv
+#    - cd "c:/Program Files (x86)/Microsoft Visual Studio/2019/BuildTools/VC/Auxiliary/Build"
+#    - vcvarsall x64
+#    - cd "C:\Users\ContainerAdministrator\AppData\Local\Temp\cirrus-ci-build"
+#    - cmake -S . -B build -G "Ninja" -DCMAKE_CXX_COMPILER=clang-cl -DCMAKE_C_COMPILER=clang-cl -DCMAKE_MT=mt -DCMAKE_BUILD_TYPE=Release
+#    - cd build
+#    - cmake --build .
+#    - ctest