From c314d0b48f5451a5349ba341e0575a3efc2fe30c Mon Sep 17 00:00:00 2001
From: I-Al-Istannen <i-al-istannen@users.noreply.github.com>
Date: Wed, 22 Oct 2025 13:45:53 +0200
Subject: [PATCH 01/12] Add CI

---
 .github/workflows/enzyme-rust.yml | 49 +++++++++++++++++++++++++++++++
 1 file changed, 49 insertions(+)
 create mode 100644 .github/workflows/enzyme-rust.yml

diff --git a/.github/workflows/enzyme-rust.yml b/.github/workflows/enzyme-rust.yml
new file mode 100644
index 000000000000..84170af02f19
--- /dev/null
+++ b/.github/workflows/enzyme-rust.yml
@@ -0,0 +1,49 @@
+name: Rust Enzyme CI
+
+on:
+  push:
+    branches:
+    - main
+  pull_request:
+    branches:
+    - main
+  merge_group:
+
+jobs:
+  build:
+    name: Enzyme CI Rust ${{ matrix.os }} - ${{ matrix.rust-version }}
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          - ubuntu-latest
+          - macOS-latest
+        rust-version:
+          - master
+          - b2ee1b333aea9951c3eefa4967098cc763de59ca
+    steps:
+    - name: Clone rust
+      run: |
+        git clone --depth=1 https://github.com/rust-lang/rust .
+    - name: Adjust git settings
+      run: |
+        git config --global user.email "ci@example.org"
+        git config --global user.name  "CI"
+    - name: Init enzyme submodule
+      run: |
+        git submodule update --init src/tools/enzyme
+    - name: Update enzyme submodule
+      run: |
+        pushd src/tools/enzyme || exit 1
+        git fetch origin $GITHUB_SHA
+        git checkout $GITHUB_SHA
+        popd || exit 1
+
+        git add src/tools/enzyme && git commit -m "Set Enzyme version"
+    - name: Configure
+      run: |
+        ./configure --release-channel=nightly --enable-llvm-enzyme --enable-llvm-assertions --enable-option-checking --disable-docs --set llvm.download-ci-llvm=true
+    - name: Build
+      run: |
+        ./x build --stage 1 library

From af54c7d4efb2f2485f95cacb2e778c59d81355fc Mon Sep 17 00:00:00 2001
From: I-Al-Istannen <i-al-istannen@users.noreply.github.com>
Date: Wed, 22 Oct 2025 14:01:43 +0200
Subject: [PATCH 02/12] We do not test anything

---
 .github/workflows/bcload.yml       |  34 ---------
 .github/workflows/benchmark.yml    |  49 -------------
 .github/workflows/ccpp.yml         |  47 ------------
 .github/workflows/doxygen.yml      |  41 -----------
 .github/workflows/enzyme-bazel.yml |  78 --------------------
 .github/workflows/enzyme-ci.yml    | 111 -----------------------------
 .github/workflows/enzyme-julia.yml |  57 ---------------
 .github/workflows/enzyme-mlir.yml  |  88 -----------------------
 .github/workflows/format.yml       |  20 ------
 .github/workflows/fortran.yml      |  80 ---------------------
 .github/workflows/tagger.yml       |  54 --------------
 11 files changed, 659 deletions(-)
 delete mode 100644 .github/workflows/bcload.yml
 delete mode 100644 .github/workflows/benchmark.yml
 delete mode 100644 .github/workflows/ccpp.yml
 delete mode 100644 .github/workflows/doxygen.yml
 delete mode 100644 .github/workflows/enzyme-bazel.yml
 delete mode 100644 .github/workflows/enzyme-ci.yml
 delete mode 100644 .github/workflows/enzyme-julia.yml
 delete mode 100644 .github/workflows/enzyme-mlir.yml
 delete mode 100644 .github/workflows/format.yml
 delete mode 100644 .github/workflows/fortran.yml
 delete mode 100644 .github/workflows/tagger.yml

diff --git a/.github/workflows/bcload.yml b/.github/workflows/bcload.yml
deleted file mode 100644
index c278f0621b28..000000000000
--- a/.github/workflows/bcload.yml
+++ /dev/null
@@ -1,34 +0,0 @@
-name: Bitcode loading CI
-
-on: [push]
-
-jobs:
-  build:
-    name: Bitcode loading CI LLVM ${{ matrix.llvm }} ${{ matrix.build }} ${{ matrix.os }}
-    runs-on: ${{ matrix.os }}
-
-    strategy:
-      fail-fast: false
-      matrix:
-        # BCLoad tests only run with old pass manager [aka up to and including 13]
-        llvm: ["15"]
-        build: ["Release"] # "RelWithDebInfo"
-        os: [ubuntu-22.04]
-
-    timeout-minutes: 30
-    steps:
-    - name: add llvm
-      run: |
-          wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key|sudo apt-key add -
-          sudo apt-add-repository "deb http://apt.llvm.org/`lsb_release -c | cut -f2`/ llvm-toolchain-`lsb_release -c | cut -f2`-${{ matrix.llvm }} main" || true
-          sudo apt-get install -y cmake gcc g++ llvm-${{ matrix.llvm }}-dev clang-${{ matrix.llvm }} libclang-${{ matrix.llvm }}-dev
-          sudo python3 -m pip install --upgrade pip lit
-    - uses: actions/checkout@v4
-    - name: mkdir
-      run: cd enzyme && rm -rf build && mkdir build
-    - name: cmake
-      run: |
-          cd enzyme/build
-          cmake .. -DLLVM_EXTERNAL_LIT=`which lit` -DCMAKE_BUILD_TYPE=${{ matrix.build }} -DLLVM_DIR=/usr/lib/llvm-${{ matrix.llvm }}/lib/cmake/llvm
-    - name: make check-bcpass
-      run: cd enzyme/build && make -j `nproc` check-bcpass
diff --git a/.github/workflows/benchmark.yml b/.github/workflows/benchmark.yml
deleted file mode 100644
index 1d875a6aace1..000000000000
--- a/.github/workflows/benchmark.yml
+++ /dev/null
@@ -1,49 +0,0 @@
-name: Benchmarking
-
-on: 
-  push:
-    branches:
-    - main
-  pull_request:
-    branches:
-    - main
-  merge_group:
-    
-concurrency: 
-  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
-  cancel-in-progress: true
-
-jobs:
-  build:
-    name: Benchmark Test on os ${{ matrix.os }} and llvm ${{ matrix.llvm }} mode ${{ matrix.build }} 
-    runs-on: ${{ matrix.os }}
-    
-    strategy:
-      fail-fast: false
-      matrix:
-        llvm: ["16", "17", "18"]
-        build: ["Release"] #, "Debug" "RelWithDebInfo"
-        os: [] # [openstack22]
-    timeout-minutes: 120 
-    steps:
-    - name: add llvm 
-      run: |
-          wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key|sudo apt-key add -
-          sudo apt-add-repository "deb http://apt.llvm.org/`lsb_release -c | cut -f2`/ llvm-toolchain-`lsb_release -c | cut -f2`-${{ matrix.llvm }} main" || true
-          sudo apt-get install -y python3-pip autoconf cmake gcc g++ libtool gfortran libblas-dev llvm-${{ matrix.llvm }}-dev clang-${{ matrix.llvm }} libeigen3-dev libboost-dev libzstd-dev
-          sudo python3 -m pip install lit pathlib
-          sudo touch /usr/lib/llvm-${{ matrix.llvm }}/bin/yaml-bench
-    - uses: actions/checkout@v4
-    - name: mkdir
-      run: rm -rf build && mkdir build
-    - name: cmake
-      working-directory: build
-      run: cmake ../enzyme -DLLVM_EXTERNAL_LIT=`which lit` -DCMAKE_BUILD_TYPE=${{ matrix.build }} -DLLVM_DIR=/usr/lib/llvm-${{ matrix.llvm }}/lib/cmake/llvm
-    - name: make
-      working-directory: build
-      run: make -j `nproc` LLVMEnzyme-${{ matrix.llvm }}
-    - name: make bench-enzyme
-      working-directory: build
-      run: make bench-enzyme
-    - name: results
-      run: cat enzyme/benchmarks/*/*/results.txt
diff --git a/.github/workflows/ccpp.yml b/.github/workflows/ccpp.yml
deleted file mode 100644
index 212090991ab7..000000000000
--- a/.github/workflows/ccpp.yml
+++ /dev/null
@@ -1,47 +0,0 @@
-name: C/C++ CI
-
-on: 
-  push:
-    branches:
-    - main
-  pull_request:
-    branches:
-    - main
-  merge_group:
-
-jobs:
-  build:
-    name: Integration CI LLVM ${{ matrix.llvm }} ${{ matrix.build }} ${{ matrix.os }}
-    runs-on: ${{ matrix.os }}
-    
-    strategy:
-      fail-fast: false
-      matrix:
-        llvm: ["15", "16", "17", "18", "19", "20", "21"]
-        build: ["Release"] # "RelWithDebInfo"
-        os: [ubuntu-22.04]
-    
-    timeout-minutes: 45
-    
-    steps:
-    - name: add llvm 
-      run: |
-          wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key|sudo apt-key add -
-          sudo apt-get install -y libmpfr-dev
-          sudo apt-add-repository "deb http://apt.llvm.org/`lsb_release -c | cut -f2`/ llvm-toolchain-`lsb_release -c | cut -f2`-${{ matrix.llvm }} main" || true
-          sudo apt-get install -y cmake gcc g++ llvm-${{ matrix.llvm }}-dev libomp-${{ matrix.llvm }}-dev lld-${{ matrix.llvm }} clang-${{ matrix.llvm }} libclang-${{ matrix.llvm }}-dev libeigen3-dev libboost-dev libzstd-dev
-          sudo python3 -m pip install --upgrade pip lit
-    - uses: actions/checkout@v4
-    - name: mkdir
-      run: rm -rf build && mkdir build
-    - name: cmake
-      working-directory: build
-      run: cmake ../enzyme -DLLVM_EXTERNAL_LIT=`which lit` -DCMAKE_BUILD_TYPE=${{ matrix.build }} -DLLVM_DIR=/usr/lib/llvm-${{ matrix.llvm }}/lib/cmake/llvm
-    - name: make
-      run: cd build && make -j `nproc` LLVMEnzyme-${{ matrix.llvm }} ClangEnzyme-${{ matrix.llvm }} LLDEnzyme-${{ matrix.llvm }}  
-    - name: make test-cmake
-      working-directory: build
-      run: make -j `nproc` test-cmake
-    - name: make check-enzyme-integration
-      working-directory: build
-      run: make -j `nproc` check-enzyme-integration
diff --git a/.github/workflows/doxygen.yml b/.github/workflows/doxygen.yml
deleted file mode 100644
index 722fbe6b14a4..000000000000
--- a/.github/workflows/doxygen.yml
+++ /dev/null
@@ -1,41 +0,0 @@
-name: Build and deploy Doxygen to Scripts
-
-on:
-  push:
-    branches:
-      - main
-
-jobs:
-  build-docs:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v4
-
-      - uses: mattnotmitt/doxygen-action@v1.12.0
-        with:
-          working-directory: 'enzyme/'
-          doxyfile-path: 'doxygen.cfg'
-
-      - name: Upload static files as artifact
-        id: deployment
-        uses: actions/upload-pages-artifact@v3 # or specific "vX.X.X" version tag for this action
-        with:
-          path: enzyme/doxygen/html
-          
-  deploy-docs:
-    # Grant GITHUB_TOKEN the permissions required to make a Pages deployment
-    permissions:
-      pages: write      # to deploy to Pages
-      id-token: write   # to verify the deployment originates from an appropriate source
-
-    # Deploy to the github-pages environment
-    environment:
-      name: github-pages
-      url: ${{ steps.deployment.outputs.page_url }}
-
-    needs: build-docs
-    runs-on: ubuntu-latest
-    steps:
-      - name: Deploy to GitHub Pages
-        id: deployment
-        uses: actions/deploy-pages@v4 # or specific "vX.X.X" version tag for this action
diff --git a/.github/workflows/enzyme-bazel.yml b/.github/workflows/enzyme-bazel.yml
deleted file mode 100644
index d41fdedb7f59..000000000000
--- a/.github/workflows/enzyme-bazel.yml
+++ /dev/null
@@ -1,78 +0,0 @@
-name: Bazel
-
-on:
-  schedule:
-    - cron: 0 0 * * *
-  push:
-    branches:
-    - main
-    paths:
-      - '.github/workflows/enzyme-bazel.yml'
-      - 'enzyme/Enzyme/**'
-      - 'enzyme/includes/**'
-      - 'enzyme/test/**'
-      - 'enzyme/tools/**'
-      - 'enzyme/BUILD'
-      - 'enzyme/WORKSPACE'
-  pull_request:
-    branches:
-    - main
-    paths:
-      - '.github/workflows/enzyme-bazel.yml'
-      - 'enzyme/Enzyme/**'
-      - 'enzyme/includes/**'
-      - 'enzyme/test/**'
-      - 'enzyme/tools/**'
-      - 'enzyme/BUILD'
-      - 'enzyme/WORKSPACE'
-  merge_group:
-
-concurrency:
-  # Skip intermediate builds: always.
-  # Cancel intermediate builds: only if it is a pull request build.
-  group: ${{ github.workflow }}-${{ github.ref }}
-  cancel-in-progress: ${{ startsWith(github.ref, 'refs/pull/') }}
-
-jobs:
-  build:
-    name: Enzyme Bazel Build - ${{ matrix.os }}
-    runs-on: ${{ matrix.os }}
-    strategy:
-      fail-fast: false
-      matrix:
-          - linux-x86-n2-32
-        build:
-          - Release
-        llbuild:
-          - Release
-    timeout-minutes: 500 
-
-    container:
-      image: ${{ (contains(matrix.os, 'linux') && 'ghcr.io/enzymead/reactant-docker-images@sha256:91e1edb7a7c869d5a70db06e417f22907be0e67ca86641d48adcea221fedc674' ) || '' }}
-
-    steps:
-      - name: Install Python dependencies
-        run: python -m pip install lit
-      - uses: actions/checkout@v4
-      - uses: actions/checkout@v4
-        with:
-          repository: 'llvm/llvm-project'
-          path: 'llvm-project'
-      - uses: bazel-contrib/setup-bazel@0.14.0
-        name: Set up Bazel
-        with:
-          # Avoid downloading Bazel every time.
-          bazelisk-cache: true
-          # Store build cache per workflow.
-          disk-cache: ${{ github.workflow }}-${{ matrix.os }}-${{ matrix.build }}-${{ matrix.llbuild }}
-          # Share repository cache between workflows.
-          repository-cache: true
-          bazelisk-version: 1.x
-      - name: Build Enzyme
-        run: |
-          cd enzyme
-          bazel build --color=yes :EnzymeStatic :enzymemlir-opt
-      - name: Test Enzyme
-        run: |
-          cd enzyme
-          bazel test --color=yes --test_output=errors ...
diff --git a/.github/workflows/enzyme-ci.yml b/.github/workflows/enzyme-ci.yml
deleted file mode 100644
index 56c84bf8c2f7..000000000000
--- a/.github/workflows/enzyme-ci.yml
+++ /dev/null
@@ -1,111 +0,0 @@
-name: Enzyme CI
-
-on: 
-  push:
-    branches:
-      - main
-  pull_request:
-  merge_group:
-
-jobs:
-  build-linux:
-    name: Enzyme CI LLVM ${{ matrix.llvm }} ${{ matrix.build }} ${{ matrix.os }}
-    runs-on: ${{ matrix.os }}
-    
-    strategy:
-      fail-fast: false
-      matrix:
-        llvm: ["15", "16"]
-        build: ["Release", "Debug"] # "RelWithDebInfo"
-        os: [ubuntu-22.04]
-  
-    timeout-minutes: 30 
-
-    steps:
-    - name: add llvm 
-      run: |
-          wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key|sudo apt-key add -
-          sudo apt-add-repository "deb http://apt.llvm.org/`lsb_release -c | cut -f2`/ llvm-toolchain-`lsb_release -c | cut -f2`-${{ matrix.llvm }} main" || true
-          sudo apt-get install -y cmake gcc g++ llvm-${{ matrix.llvm }}-dev libzstd-dev
-          sudo python3 -m pip install --upgrade pip lit
-    - uses: actions/checkout@v4
-    - name: mkdir
-      run: rm -rf build && mkdir build
-    - name: cmake
-      working-directory: build
-      run: cmake ../enzyme -DCMAKE_BUILD_TYPE=${{ matrix.build }} -DLLVM_EXTERNAL_LIT=`which lit` -DLLVM_DIR=/usr/lib/llvm-${{ matrix.llvm }}/lib/cmake/llvm
-    - name: make
-      working-directory: build
-      run: make -j `nproc`
-    - name: make check-typeanalysis
-      working-directory: build
-      run: make -j `nproc` check-typeanalysis
-    - name: make check-activityanalysis
-      working-directory: build
-      run: make -j `nproc` check-activityanalysis
-    - name: make check-enzyme
-      working-directory: build
-      run: make  -j `nproc` check-enzyme-bench
-  
-  build-macos:
-    name: Enzyme CI LLVM ${{ matrix.llvm }} ${{ matrix.build }} macOS
-    runs-on: macos-latest
-    
-    strategy:
-      fail-fast: false
-      matrix:
-        llvm: ["15", "16"]
-        build: ["Release", "Debug"] # "RelWithDebInfo"
-  
-    timeout-minutes: 30 
-    steps:
-    - name: add llvm 
-      run: |
-          brew update
-          brew uninstall cmake
-          brew install llvm@${{ matrix.llvm }} make cmake
-          sudo python3 -m pip install --upgrade --break-system-packages --user pip lit requests
-    - uses: actions/checkout@v4
-    - name: mkdir
-      run: rm -rf build && mkdir build
-    - name: cmake
-      working-directory: build
-      run: cmake ../enzyme -DCMAKE_BUILD_TYPE=${{ matrix.build }} -DLLVM_EXTERNAL_LIT=`find /Users/runner/Library/Python/ -iname lit` -DLLVM_DIR=`brew --prefix llvm@${{ matrix.llvm }}`/lib/cmake/llvm
-    - name: make
-      working-directory: build
-      run: make -j 3
-    - name: make check-typeanalysis
-      working-directory: build
-      run: make -j 3 check-typeanalysis
-    - name: make check-activityanalysis
-      working-directory: build
-      run: make -j 3 check-activityanalysis
-    - name: make check-enzyme
-      working-directory: build
-      run: make -j3 check-enzyme-bench
-
-  build-xcode:
-    name: Enzyme CI LLVM ${{ matrix.llvm }} ${{ matrix.build }} macOS XCode
-    runs-on: macos-latest
-
-    strategy:
-      fail-fast: false
-      matrix:
-        llvm: ["16"]
-        build: ["Release"] # "RelWithDebInfo"
-
-    timeout-minutes: 30
-    steps:
-    - name: add llvm
-      run: |
-          brew uninstall cmake
-          brew install llvm@${{ matrix.llvm }} make cmake gcc
-          sudo python3 -m pip install --upgrade --break-system-packages --user pip lit
-    - uses: actions/checkout@v4
-    - name: mkdir
-      run: rm -rf build && mkdir build
-    - name: cmake
-      working-directory: build
-      run: |
-          cmake ../enzyme -GXcode -DCMAKE_BUILD_TYPE=${{ matrix.build }} -DLLVM_EXTERNAL_LIT=`which lit` -DLLVM_DIR=`brew --prefix llvm@${{ matrix.llvm }}`/lib/cmake/llvm
-          cmake --build . --parallel 3
diff --git a/.github/workflows/enzyme-julia.yml b/.github/workflows/enzyme-julia.yml
deleted file mode 100644
index 6ae9f3d0ff5a..000000000000
--- a/.github/workflows/enzyme-julia.yml
+++ /dev/null
@@ -1,57 +0,0 @@
-name: Julia Enzyme CI
-
-on:
-  push:
-    branches:
-    - main
-  pull_request:
-    branches:
-    - main
-  merge_group:
-
-jobs:
-  build:
-    name: Enzyme CI Julia ${{ matrix.version }} ${{ matrix.os }}
-    runs-on: ${{ matrix.os }}
-    continue-on-error: ${{ matrix.version == 'nightly' }}
-    strategy:
-      fail-fast: false
-      matrix:
-        version:
-          - '1.10'
-        os:
-          - ubuntu-latest
-          - macOS-latest
-        arch:
-          - x64
-    timeout-minutes: 60 
-    steps:
-    - uses: actions/checkout@v4
-    - uses: actions/checkout@v4
-      with:
-        repository: 'EnzymeAD/Enzyme.jl'
-        path: ./jl
-        ref: main
-    - uses: julia-actions/setup-julia@v1
-      with:
-        version: ${{ matrix.version }}
-        arch: ${{ matrix.arch }}
-
-    - name: Build libEnzyme
-      if: ${{ matrix.os != 'macOS-latest'}}
-      run: |
-        julia --project=jl/deps -e 'using Pkg; Pkg.instantiate()'
-        julia --project=jl/deps jl/deps/build_local.jl ./enzyme
-    - name: Build libEnzyme MacOS
-      if: ${{ matrix.os == 'macOS-latest'}}
-      run: |
-        julia --project=jl/deps -e 'using Pkg; Pkg.instantiate()'
-        SDKROOT=`xcrun --show-sdk-path` julia --project=jl/deps jl/deps/build_local.jl ./enzyme
-    - name: Dev EnzymeCore
-      run: julia --project=jl -e 'using Pkg; Pkg.develop(path="jl/lib/EnzymeCore")'
-    - uses: julia-actions/julia-buildpkg@v1
-      with:
-        project: jl
-    - uses: julia-actions/julia-runtest@v1
-      with:
-        project: jl
diff --git a/.github/workflows/enzyme-mlir.yml b/.github/workflows/enzyme-mlir.yml
deleted file mode 100644
index db3d96e4fd24..000000000000
--- a/.github/workflows/enzyme-mlir.yml
+++ /dev/null
@@ -1,88 +0,0 @@
-name: MLIR
-
-on:
-  push:
-    branches:
-    - main
-  pull_request:
-    branches:
-    - main
-  merge_group:
-
-jobs:
-  build-linux:
-    name: MLIR ${{ matrix.build }} ${{ matrix.os }}
-    runs-on: ${{ matrix.os }}
-
-    strategy:
-      fail-fast: false
-      matrix:
-        build: ["Release", "Debug"] # "RelWithDebInfo"
-        llbuild: ["Release"]
-        os: [linux-x86-n2-32]
-
-    timeout-minutes: 500
-
-    container:
-      image: ${{ (contains(matrix.os, 'linux') && 'ghcr.io/enzymead/reactant-docker-images@sha256:91e1edb7a7c869d5a70db06e417f22907be0e67ca86641d48adcea221fedc674' ) || '' }}
-
-    steps:
-    - name: Install dependencies
-      run: |
-          apt-get update
-          apt-get install -y binutils ninja-build cmake gcc g++ python3 python3-dev
-
-    - uses: actions/checkout@v4
-      with:
-        path: 'Enzyme'
-
-    - uses: actions/checkout@v4
-      with:
-        repository: 'llvm/llvm-project'
-        ref: 'fc44a4fcd3c54be927c15ddd9211aca1501633e7'
-        path: 'llvm-project'
-
-    - name: Set BASE_DIR
-      # We have to use `${GITHUB_WORKSPACE}` instead of `github.workspace` because GitHub
-      # is terrible and the two don't match inside containers:
-      # https://github.com/actions/runner/issues/2058
-      run: |
-        BASE_DIR=${GITHUB_WORKSPACE}
-        # Make sure this directory exists, for good measure
-        ls -lhrt "${BASE_DIR}"/Enzyme
-        ls -lhrt "${BASE_DIR}"/llvm-project
-        echo "BASE_DIR=${BASE_DIR}" >> ${GITHUB_ENV}
-
-    - name: Get MLIR commit hash
-      id: mlir-commit
-      working-directory: 'llvm-project'
-      run: echo "sha_short=$(git rev-parse --short HEAD)" >> $GITHUB_OUTPUT
-
-    - name: Cache MLIR
-      id: cache-mlir
-      uses: actions/cache@v4
-      with:
-        path: ${{ env.BASE_DIR }}/llvm-project/mlir-build
-        key: ${{ matrix.llbuild }}-${{ matrix.os }}-mlir-${{ steps.mlir-commit.outputs.sha_short }}
-
-    - name: MLIR build
-      if: steps.cache-mlir.outputs.cache-hit != 'true'
-      working-directory: ${{ env.BASE_DIR }}/'llvm-project'
-      run: |
-        mkdir mlir-build && cd mlir-build && cmake ../llvm -GNinja -DLLVM_ENABLE_PROJECTS="llvm;clang;mlir" -DLLVM_ENABLE_RUNTIMES=openmp -DCMAKE_BUILD_TYPE=${{ matrix.llbuild }} \
-        -DLLVM_ENABLE_ASSERTIONS=ON -DLLVM_TARGETS_TO_BUILD=X86 \
-        -DLLVM_USE_LINKER=gold -DLLVM_PARALLEL_LINK_JOBS=2 \
-        -DCLANG_ENABLE_STATIC_ANALYZER=OFF -DCLANG_ENABLE_ARCMT=OFF \
-        -DLLVM_OPTIMIZED_TABLEGEN=ON && ninja || echo "already built"
-
-    - name: Enzyme build
-      working-directory: ${{ env.BASE_DIR }}/'Enzyme'
-      run: |
-          mkdir enzyme-build && cd enzyme-build
-          cmake ../enzyme -GNinja -DCMAKE_BUILD_TYPE=${{ matrix.build }} -DLLVM_DIR=${{ env.BASE_DIR }}/llvm-project/mlir-build -DENZYME_MLIR=ON
-          ninja
-
-    - name: Check enzyme-mlir
-      working-directory: 'Enzyme/enzyme-build'
-      run: ninja check-enzymemlir
-
diff --git a/.github/workflows/format.yml b/.github/workflows/format.yml
deleted file mode 100644
index 93468da2bdf6..000000000000
--- a/.github/workflows/format.yml
+++ /dev/null
@@ -1,20 +0,0 @@
-name: Clang-Format
-
-on:
-  push:
-  pull_request:
-  merge_group:
-   
-jobs:
-  build:
-    name: Format
-    runs-on: ubuntu-latest
-    
-    steps:
-    - uses: actions/checkout@v4
-    - uses: DoozyX/clang-format-lint-action@v0.20
-      with:
-        source: 'enzyme/Enzyme enzyme/tools/enzyme-tblgen'
-        exclude: './CMakeLists.txt enzyme/Enzyme/SCEV'
-        style: 'llvm'
-        clangFormatVersion: 16
diff --git a/.github/workflows/fortran.yml b/.github/workflows/fortran.yml
deleted file mode 100644
index 94ef0d17451e..000000000000
--- a/.github/workflows/fortran.yml
+++ /dev/null
@@ -1,80 +0,0 @@
-name: Fortran
-
-on:
-  push:
-    branches: 
-    - main
-    paths:
-      - '.github/workflows/fortran.yml'
-      - 'enzyme/Enzyme/**'
-      - 'enzyme/includes/**'
-      - 'enzyme/test/**'
-      - 'enzyme/tools/**'
-      - 'enzyme/benchmarks/**'
-      - 'enzyme/cmake/**'
-      - 'enzyme/CMakeLists.txt'
-      - 'enzyme/CMakePresets.json'
-  pull_request:
-    branches: 
-    - main
-    paths:
-      - '.github/workflows/fortran.yml'
-      - 'enzyme/Enzyme/**'
-      - 'enzyme/includes/**'
-      - 'enzyme/test/**'
-      - 'enzyme/tools/**'
-      - 'enzyme/benchmarks/**'
-      - 'enzyme/cmake/**'
-      - 'enzyme/CMakeLists.txt'
-      - 'enzyme/CMakePresets.json'
-  merge_group:
-
-concurrency:
-   # Skip intermediate builds: always.
-   # Cancel intermediate builds: only if it is a pull request build.
-   group: ${{ github.workflow }}-${{ github.ref }}
-   cancel-in-progress: ${{ startsWith(github.ref, 'refs/pull/') }}
-    
-jobs:
-  build-and-test-fortran:
-    name: Fortran ${{matrix.build}} ${{matrix.os}}
-    runs-on: ${{matrix.os}}
-    strategy:
-      fail-fast: false
-      matrix:
-        build: ["Release", "Debug"]
-        os: [ubuntu-22.04]
-        llvm: [15]
-        include:
-          - llvm: 15
-            ifx: 2023.0.0
-            mpi: 2021.7.1
-    timeout-minutes: 60 
-    steps:
-    - name: add llvm
-      run: |
-        wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key|sudo apt-key add -
-        sudo apt-add-repository "deb http://apt.llvm.org/`lsb_release -c | cut -f2`/ llvm-toolchain-`lsb_release -c | cut -f2`-${{ matrix.llvm }} main"
-        sudo apt-get update && sudo apt-get install -y cmake gcc g++ llvm-${{ matrix.llvm }}-dev ninja-build pip
-        sudo python3 -m pip install --upgrade pip lit
-    - name: add intel tools
-      run: |
-        wget https://apt.repos.intel.com/intel-gpg-keys/GPG-PUB-KEY-INTEL-SW-PRODUCTS.PUB
-        sudo apt-key add GPG-PUB-KEY-INTEL-SW-PRODUCTS.PUB
-        rm GPG-PUB-KEY-INTEL-SW-PRODUCTS.PUB
-        sudo echo "deb https://apt.repos.intel.com/oneapi all main" | sudo tee /etc/apt/sources.list.d/oneAPI.list
-        sudo apt-get update && sudo apt-get install -y intel-oneapi-compiler-fortran-${{ matrix.ifx }} intel-oneapi-mpi-${{ matrix.mpi }} intel-oneapi-mpi-devel-${{ matrix.mpi }}
-        source /opt/intel/oneapi/setvars.sh
-        printenv >> $GITHUB_ENV
-    - uses: actions/checkout@v4
-    - name: generate build system
-      run: |
-        rm -rf build && mkdir build && cd build
-        cmake ../enzyme -GNinja -DCMAKE_BUILD_TYPE=${{ matrix.build }} -DLLVM_DIR=/usr/lib/llvm-${{ matrix.llvm }}/lib/cmake/llvm -DLLVM_EXTERNAL_LIT=`which lit` -DENZYME_IFX=ON
-    - name: build enzyme
-      working-directory: 'build'
-      run: ninja LLVMEnzyme-${{ matrix.llvm }}
-    - name: run Fortran tests
-      working-directory: 'build'
-      run: ninja check-enzyme-fortran
-        
diff --git a/.github/workflows/tagger.yml b/.github/workflows/tagger.yml
deleted file mode 100644
index 187f72e48f25..000000000000
--- a/.github/workflows/tagger.yml
+++ /dev/null
@@ -1,54 +0,0 @@
-name: Tag CI
-
-on:
-  release:
-    types:
-      - created
-
-jobs:
-  build:
-    name: Enzyme Tag CI
-    runs-on: ubuntu-latest
-    steps:
-    - uses: actions/create-github-app-token@v2
-      id: generate_token
-      with:
-        app-id: ${{ secrets.APP_ID }}
-        private-key: ${{ secrets.APP_PRIVATE_KEY }}
-        owner: JuliaPackaging
-        repositories: |
-          Yggdrasil
-
-    - uses: actions/checkout@v5
-      with:
-          repository: 'JuliaPackaging/Yggdrasil'
-          path: ygg
-
-    - uses: actions/checkout@v5
-      with:
-        path: enz
-    - name: replace
-      run: |
-          cd ygg
-          git rm -rf E/Enzyme
-          mkdir -p E/Enzyme/
-          cd E/Enzyme
-          cp ../../../enz/.packaging/build_tarballs.jl build_tarballs.jl
-          sed "s~%ENZYME_VERSION%~${GITHUB_REF}~g" build_tarballs.jl -i
-          sed "s~%ENZYME_HASH%~${GITHUB_SHA}~g" build_tarballs.jl -i
-          git add .
-    - name: Create Pull Request
-      id: cpr
-      uses: peter-evans/create-pull-request@v7
-      with:
-        path: ygg
-        commit-message: "Upgrade enzyme to ${{ github.ref }}"
-        title: "Upgrade enzyme to ${{ github.ref }}"
-        token: ${{ steps.generate_token.outputs.token }}
-        reviewers: vchuravy
-        branch: enzyme/${{ github.ref }}
-        body: "Automatic PR generated for https://github.com/EnzymeAD/Enzyme "
-    - name: Check outputs
-      run: |
-        echo "Pull Request Number - ${{ steps.cpr.outputs.pull-request-number }}"
-        echo "Pull Request URL - ${{ steps.cpr.outputs.pull-request-url }}"

From e21493085acb3faa7e089e3f4b24f349d55a49d2 Mon Sep 17 00:00:00 2001
From: I-Al-Istannen <i-al-istannen@users.noreply.github.com>
Date: Wed, 22 Oct 2025 14:26:35 +0200
Subject: [PATCH 03/12] Debug with SSH

---
 .github/workflows/enzyme-rust.yml | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/.github/workflows/enzyme-rust.yml b/.github/workflows/enzyme-rust.yml
index 84170af02f19..c8953b4a40da 100644
--- a/.github/workflows/enzyme-rust.yml
+++ b/.github/workflows/enzyme-rust.yml
@@ -44,6 +44,8 @@ jobs:
     - name: Configure
       run: |
         ./configure --release-channel=nightly --enable-llvm-enzyme --enable-llvm-assertions --enable-option-checking --disable-docs --set llvm.download-ci-llvm=true
+    - name: Setup tmate session
+      uses: mxschmitt/action-tmate@v3
     - name: Build
       run: |
         ./x build --stage 1 library

From 86508be91c0259919958774c755c389b03d3ab57 Mon Sep 17 00:00:00 2001
From: I-Al-Istannen <i-al-istannen@users.noreply.github.com>
Date: Fri, 24 Oct 2025 19:38:58 +0200
Subject: [PATCH 04/12] Revert "Debug with SSH"

This reverts commit e21493085acb3faa7e089e3f4b24f349d55a49d2.
---
 .github/workflows/enzyme-rust.yml | 2 --
 1 file changed, 2 deletions(-)

diff --git a/.github/workflows/enzyme-rust.yml b/.github/workflows/enzyme-rust.yml
index c8953b4a40da..84170af02f19 100644
--- a/.github/workflows/enzyme-rust.yml
+++ b/.github/workflows/enzyme-rust.yml
@@ -44,8 +44,6 @@ jobs:
     - name: Configure
       run: |
         ./configure --release-channel=nightly --enable-llvm-enzyme --enable-llvm-assertions --enable-option-checking --disable-docs --set llvm.download-ci-llvm=true
-    - name: Setup tmate session
-      uses: mxschmitt/action-tmate@v3
     - name: Build
       run: |
         ./x build --stage 1 library

From 646bc07b5c903942430710cd5fb1e812739af2d7 Mon Sep 17 00:00:00 2001
From: I-Al-Istannen <i-al-istannen@users.noreply.github.com>
Date: Fri, 24 Oct 2025 19:42:13 +0200
Subject: [PATCH 05/12] Use ccache

---
 .github/workflows/enzyme-rust.yml | 20 +++++++++++++++++++-
 1 file changed, 19 insertions(+), 1 deletion(-)

diff --git a/.github/workflows/enzyme-rust.yml b/.github/workflows/enzyme-rust.yml
index 84170af02f19..4547bdbd3128 100644
--- a/.github/workflows/enzyme-rust.yml
+++ b/.github/workflows/enzyme-rust.yml
@@ -43,7 +43,25 @@ jobs:
         git add src/tools/enzyme && git commit -m "Set Enzyme version"
     - name: Configure
       run: |
-        ./configure --release-channel=nightly --enable-llvm-enzyme --enable-llvm-assertions --enable-option-checking --disable-docs --set llvm.download-ci-llvm=true
+        ./configure --release-channel=nightly --enable-llvm-enzyme --enable-llvm-assertions --enable-option-checking --disable-docs --enable-ccache
+    - name: Cache ccache
+      id: cache-ccache
+      uses: actions/cache@v4
+      with:
+        path: ~/.cache/ccache
+        key: ${{ runner.os }}-primes
+    - name: Setup ccache
+      run: |
+        sudo apt update && sudo apt install -y ccache
+    - name: Inspect ccache
+      run: |
+        ccache --show-config
+        ccache --show-stats
+        ccache --zero-stats
     - name: Build
       run: |
         ./x build --stage 1 library
+    - name: Inspect ccache
+      run: |
+        ccache --show-config
+        ccache --show-stats

From c90f58afe1303b06dc6c18eaa7fdc121d8a2b248 Mon Sep 17 00:00:00 2001
From: I-Al-Istannen <i-al-istannen@users.noreply.github.com>
Date: Fri, 24 Oct 2025 19:52:19 +0200
Subject: [PATCH 06/12] Limit matrix

---
 .github/workflows/enzyme-rust.yml | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/enzyme-rust.yml b/.github/workflows/enzyme-rust.yml
index 4547bdbd3128..f34f890eeb69 100644
--- a/.github/workflows/enzyme-rust.yml
+++ b/.github/workflows/enzyme-rust.yml
@@ -18,9 +18,9 @@ jobs:
       matrix:
         os:
           - ubuntu-latest
-          - macOS-latest
+          #- macOS-latest
         rust-version:
-          - master
+          #- master
           - b2ee1b333aea9951c3eefa4967098cc763de59ca
     steps:
     - name: Clone rust

From 38f6b7903ce25937b11adca5eaff0fb0dfcb393a Mon Sep 17 00:00:00 2001
From: I-Al-Istannen <i-al-istannen@users.noreply.github.com>
Date: Fri, 24 Oct 2025 21:39:13 +0200
Subject: [PATCH 07/12] Trigger CI and hopefully inherit the cache :^)


From ad002c7e7148ae6df8862edb32d4287a8f14757d Mon Sep 17 00:00:00 2001
From: I-Al-Istannen <i-al-istannen@users.noreply.github.com>
Date: Fri, 24 Oct 2025 22:28:53 +0200
Subject: [PATCH 08/12] Document a bit, fix cache key

---
 .github/workflows/enzyme-rust.yml | 104 ++++++++++++++++++------------
 1 file changed, 62 insertions(+), 42 deletions(-)

diff --git a/.github/workflows/enzyme-rust.yml b/.github/workflows/enzyme-rust.yml
index f34f890eeb69..42ae0f0c038b 100644
--- a/.github/workflows/enzyme-rust.yml
+++ b/.github/workflows/enzyme-rust.yml
@@ -18,50 +18,70 @@ jobs:
       matrix:
         os:
           - ubuntu-latest
-          #- macOS-latest
+          - macOS-latest
         rust-version:
           #- master
           - b2ee1b333aea9951c3eefa4967098cc763de59ca
     steps:
-    - name: Clone rust
-      run: |
-        git clone --depth=1 https://github.com/rust-lang/rust .
-    - name: Adjust git settings
-      run: |
-        git config --global user.email "ci@example.org"
-        git config --global user.name  "CI"
-    - name: Init enzyme submodule
-      run: |
-        git submodule update --init src/tools/enzyme
-    - name: Update enzyme submodule
-      run: |
-        pushd src/tools/enzyme || exit 1
-        git fetch origin $GITHUB_SHA
-        git checkout $GITHUB_SHA
-        popd || exit 1
+      - name: Clone rust
+        run: |
+          git clone --depth=1 https://github.com/rust-lang/rust .
+      - name: Adjust git settings
+        run: |
+          git config --global user.email "ci@example.org"
+          git config --global user.name  "CI"
 
-        git add src/tools/enzyme && git commit -m "Set Enzyme version"
-    - name: Configure
-      run: |
-        ./configure --release-channel=nightly --enable-llvm-enzyme --enable-llvm-assertions --enable-option-checking --disable-docs --enable-ccache
-    - name: Cache ccache
-      id: cache-ccache
-      uses: actions/cache@v4
-      with:
-        path: ~/.cache/ccache
-        key: ${{ runner.os }}-primes
-    - name: Setup ccache
-      run: |
-        sudo apt update && sudo apt install -y ccache
-    - name: Inspect ccache
-      run: |
-        ccache --show-config
-        ccache --show-stats
-        ccache --zero-stats
-    - name: Build
-      run: |
-        ./x build --stage 1 library
-    - name: Inspect ccache
-      run: |
-        ccache --show-config
-        ccache --show-stats
+      # Infra: Setup caching using ccache
+      - name: Install ccache
+        run: |
+          sudo apt update && sudo apt install -y ccache
+      - name: Get LLVM project commit SHA for use as cache key
+        id: llvm-commit
+        run: |
+          COMMIT_HASH="$(git ls-tree --object-only HEAD src/llvm-project)"
+          echo "LLVM should be on commit: '$COMMIT_HASH'"
+          echo "::set-output name=commit_hash::$COMMIT_HASH"
+      - name: Cache ccache
+        id: cache-ccache
+        uses: actions/cache@v4
+        with:
+          path: ~/.cache/ccache
+          key: ${{ runner.os }}-ccache-${{ steps['llvm-commit'].outputs.commit_hash }}
+          # We fall back to *any* cache. It is ccache, it can handle invalidation
+          # and eviction on its own. TODO: We might want to limit its size / use
+          # evict-older-than?
+          restore-keys: |
+            ${{ runner.os }}-ccache-${{ steps['llvm-commit'].outputs.commit_hash }}
+            ${{ runner.os }}-ccache-
+            ${{ runner.os }}-primes
+
+      # Now we get to the actual meat. Initialize enzyme at $GITHUB_SHA to ensure we
+      # actually test the right commit :)
+      - name: Init enzyme submodule
+        run: |
+          git submodule update --init src/tools/enzyme
+      - name: Update enzyme submodule
+        run: |
+          pushd src/tools/enzyme || exit 1
+          git fetch origin $GITHUB_SHA
+          git checkout $GITHUB_SHA
+          popd || exit 1
+
+          git add src/tools/enzyme && git commit -m "Set Enzyme version"
+
+      # And now we build!
+      - name: Configure
+        run: |
+          ./configure --release-channel=nightly --enable-llvm-enzyme --enable-llvm-assertions --enable-option-checking --disable-docs --enable-ccache
+      - name: Inspect ccache
+        run: |
+          ccache --show-config
+          ccache --show-stats
+          ccache --zero-stats  # rebaseline
+      - name: Build
+        run: |
+          ./x build --stage 1 library
+      - name: Inspect ccache
+        run: |
+          ccache --show-config
+          ccache --show-stats

From a574459090741cedaaeffe5d82455ff052131be0 Mon Sep 17 00:00:00 2001
From: I-Al-Istannen <i-al-istannen@users.noreply.github.com>
Date: Fri, 24 Oct 2025 22:33:41 +0200
Subject: [PATCH 09/12] Install ccache via brew on macos

---
 .github/workflows/enzyme-rust.yml | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/.github/workflows/enzyme-rust.yml b/.github/workflows/enzyme-rust.yml
index 42ae0f0c038b..c5d731853873 100644
--- a/.github/workflows/enzyme-rust.yml
+++ b/.github/workflows/enzyme-rust.yml
@@ -32,9 +32,14 @@ jobs:
           git config --global user.name  "CI"
 
       # Infra: Setup caching using ccache
-      - name: Install ccache
+      - name: Install ccache (Linux)
+        if: runner.os == 'Linux'
         run: |
           sudo apt update && sudo apt install -y ccache
+      - name: Install ccache (macOS)
+        if: runner.os == 'macOS'
+        run: |
+          brew install ccache
       - name: Get LLVM project commit SHA for use as cache key
         id: llvm-commit
         run: |

From a0b2d301f995b05aef927deb72c07d17e1bf84be Mon Sep 17 00:00:00 2001
From: I-Al-Istannen <i-al-istannen@users.noreply.github.com>
Date: Fri, 24 Oct 2025 22:34:45 +0200
Subject: [PATCH 10/12] Use non-deprecated syntax for step outputs

---
 .github/workflows/enzyme-rust.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/enzyme-rust.yml b/.github/workflows/enzyme-rust.yml
index c5d731853873..67febb7510f6 100644
--- a/.github/workflows/enzyme-rust.yml
+++ b/.github/workflows/enzyme-rust.yml
@@ -45,7 +45,7 @@ jobs:
         run: |
           COMMIT_HASH="$(git ls-tree --object-only HEAD src/llvm-project)"
           echo "LLVM should be on commit: '$COMMIT_HASH'"
-          echo "::set-output name=commit_hash::$COMMIT_HASH"
+          echo "commit_hash=$COMMIT_HASH" >> $GITHUB_OUTPUT
       - name: Cache ccache
         id: cache-ccache
         uses: actions/cache@v4

From 4d2e5995a3e4d4beaf5b57e3bd0f829bb262b5a7 Mon Sep 17 00:00:00 2001
From: I-Al-Istannen <i-al-istannen@users.noreply.github.com>
Date: Sat, 25 Oct 2025 00:04:48 +0200
Subject: [PATCH 11/12] Disable macos for now

---
 .github/workflows/enzyme-rust.yml | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/.github/workflows/enzyme-rust.yml b/.github/workflows/enzyme-rust.yml
index 67febb7510f6..25ecf6d1b71e 100644
--- a/.github/workflows/enzyme-rust.yml
+++ b/.github/workflows/enzyme-rust.yml
@@ -18,9 +18,9 @@ jobs:
       matrix:
         os:
           - ubuntu-latest
-          - macOS-latest
+          #- macOS-latest # broken: https://github.com/rust-lang/enzyme/actions/runs/18791780110/job/53623553780?pr=30
         rust-version:
-          #- master
+          - master
           - b2ee1b333aea9951c3eefa4967098cc763de59ca
     steps:
       - name: Clone rust
@@ -58,7 +58,6 @@ jobs:
           restore-keys: |
             ${{ runner.os }}-ccache-${{ steps['llvm-commit'].outputs.commit_hash }}
             ${{ runner.os }}-ccache-
-            ${{ runner.os }}-primes
 
       # Now we get to the actual meat. Initialize enzyme at $GITHUB_SHA to ensure we
       # actually test the right commit :)

From e46d4cdc1c91d623b0ca2b641b5121a91792b309 Mon Sep 17 00:00:00 2001
From: I-Al-Istannen <i-al-istannen@users.noreply.github.com>
Date: Sat, 25 Oct 2025 00:04:53 +0200
Subject: [PATCH 12/12] Revert "We do not test anything"

This reverts commit af54c7d4efb2f2485f95cacb2e778c59d81355fc.
---
 .github/workflows/bcload.yml       |  34 +++++++++
 .github/workflows/benchmark.yml    |  49 +++++++++++++
 .github/workflows/ccpp.yml         |  47 ++++++++++++
 .github/workflows/doxygen.yml      |  41 +++++++++++
 .github/workflows/enzyme-bazel.yml |  78 ++++++++++++++++++++
 .github/workflows/enzyme-ci.yml    | 111 +++++++++++++++++++++++++++++
 .github/workflows/enzyme-julia.yml |  57 +++++++++++++++
 .github/workflows/enzyme-mlir.yml  |  88 +++++++++++++++++++++++
 .github/workflows/format.yml       |  20 ++++++
 .github/workflows/fortran.yml      |  80 +++++++++++++++++++++
 .github/workflows/tagger.yml       |  54 ++++++++++++++
 11 files changed, 659 insertions(+)
 create mode 100644 .github/workflows/bcload.yml
 create mode 100644 .github/workflows/benchmark.yml
 create mode 100644 .github/workflows/ccpp.yml
 create mode 100644 .github/workflows/doxygen.yml
 create mode 100644 .github/workflows/enzyme-bazel.yml
 create mode 100644 .github/workflows/enzyme-ci.yml
 create mode 100644 .github/workflows/enzyme-julia.yml
 create mode 100644 .github/workflows/enzyme-mlir.yml
 create mode 100644 .github/workflows/format.yml
 create mode 100644 .github/workflows/fortran.yml
 create mode 100644 .github/workflows/tagger.yml

diff --git a/.github/workflows/bcload.yml b/.github/workflows/bcload.yml
new file mode 100644
index 000000000000..c278f0621b28
--- /dev/null
+++ b/.github/workflows/bcload.yml
@@ -0,0 +1,34 @@
+name: Bitcode loading CI
+
+on: [push]
+
+jobs:
+  build:
+    name: Bitcode loading CI LLVM ${{ matrix.llvm }} ${{ matrix.build }} ${{ matrix.os }}
+    runs-on: ${{ matrix.os }}
+
+    strategy:
+      fail-fast: false
+      matrix:
+        # BCLoad tests only run with old pass manager [aka up to and including 13]
+        llvm: ["15"]
+        build: ["Release"] # "RelWithDebInfo"
+        os: [ubuntu-22.04]
+
+    timeout-minutes: 30
+    steps:
+    - name: add llvm
+      run: |
+          wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key|sudo apt-key add -
+          sudo apt-add-repository "deb http://apt.llvm.org/`lsb_release -c | cut -f2`/ llvm-toolchain-`lsb_release -c | cut -f2`-${{ matrix.llvm }} main" || true
+          sudo apt-get install -y cmake gcc g++ llvm-${{ matrix.llvm }}-dev clang-${{ matrix.llvm }} libclang-${{ matrix.llvm }}-dev
+          sudo python3 -m pip install --upgrade pip lit
+    - uses: actions/checkout@v4
+    - name: mkdir
+      run: cd enzyme && rm -rf build && mkdir build
+    - name: cmake
+      run: |
+          cd enzyme/build
+          cmake .. -DLLVM_EXTERNAL_LIT=`which lit` -DCMAKE_BUILD_TYPE=${{ matrix.build }} -DLLVM_DIR=/usr/lib/llvm-${{ matrix.llvm }}/lib/cmake/llvm
+    - name: make check-bcpass
+      run: cd enzyme/build && make -j `nproc` check-bcpass
diff --git a/.github/workflows/benchmark.yml b/.github/workflows/benchmark.yml
new file mode 100644
index 000000000000..1d875a6aace1
--- /dev/null
+++ b/.github/workflows/benchmark.yml
@@ -0,0 +1,49 @@
+name: Benchmarking
+
+on: 
+  push:
+    branches:
+    - main
+  pull_request:
+    branches:
+    - main
+  merge_group:
+    
+concurrency: 
+  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
+  cancel-in-progress: true
+
+jobs:
+  build:
+    name: Benchmark Test on os ${{ matrix.os }} and llvm ${{ matrix.llvm }} mode ${{ matrix.build }} 
+    runs-on: ${{ matrix.os }}
+    
+    strategy:
+      fail-fast: false
+      matrix:
+        llvm: ["16", "17", "18"]
+        build: ["Release"] #, "Debug" "RelWithDebInfo"
+        os: [] # [openstack22]
+    timeout-minutes: 120 
+    steps:
+    - name: add llvm 
+      run: |
+          wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key|sudo apt-key add -
+          sudo apt-add-repository "deb http://apt.llvm.org/`lsb_release -c | cut -f2`/ llvm-toolchain-`lsb_release -c | cut -f2`-${{ matrix.llvm }} main" || true
+          sudo apt-get install -y python3-pip autoconf cmake gcc g++ libtool gfortran libblas-dev llvm-${{ matrix.llvm }}-dev clang-${{ matrix.llvm }} libeigen3-dev libboost-dev libzstd-dev
+          sudo python3 -m pip install lit pathlib
+          sudo touch /usr/lib/llvm-${{ matrix.llvm }}/bin/yaml-bench
+    - uses: actions/checkout@v4
+    - name: mkdir
+      run: rm -rf build && mkdir build
+    - name: cmake
+      working-directory: build
+      run: cmake ../enzyme -DLLVM_EXTERNAL_LIT=`which lit` -DCMAKE_BUILD_TYPE=${{ matrix.build }} -DLLVM_DIR=/usr/lib/llvm-${{ matrix.llvm }}/lib/cmake/llvm
+    - name: make
+      working-directory: build
+      run: make -j `nproc` LLVMEnzyme-${{ matrix.llvm }}
+    - name: make bench-enzyme
+      working-directory: build
+      run: make bench-enzyme
+    - name: results
+      run: cat enzyme/benchmarks/*/*/results.txt
diff --git a/.github/workflows/ccpp.yml b/.github/workflows/ccpp.yml
new file mode 100644
index 000000000000..212090991ab7
--- /dev/null
+++ b/.github/workflows/ccpp.yml
@@ -0,0 +1,47 @@
+name: C/C++ CI
+
+on: 
+  push:
+    branches:
+    - main
+  pull_request:
+    branches:
+    - main
+  merge_group:
+
+jobs:
+  build:
+    name: Integration CI LLVM ${{ matrix.llvm }} ${{ matrix.build }} ${{ matrix.os }}
+    runs-on: ${{ matrix.os }}
+    
+    strategy:
+      fail-fast: false
+      matrix:
+        llvm: ["15", "16", "17", "18", "19", "20", "21"]
+        build: ["Release"] # "RelWithDebInfo"
+        os: [ubuntu-22.04]
+    
+    timeout-minutes: 45
+    
+    steps:
+    - name: add llvm 
+      run: |
+          wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key|sudo apt-key add -
+          sudo apt-get install -y libmpfr-dev
+          sudo apt-add-repository "deb http://apt.llvm.org/`lsb_release -c | cut -f2`/ llvm-toolchain-`lsb_release -c | cut -f2`-${{ matrix.llvm }} main" || true
+          sudo apt-get install -y cmake gcc g++ llvm-${{ matrix.llvm }}-dev libomp-${{ matrix.llvm }}-dev lld-${{ matrix.llvm }} clang-${{ matrix.llvm }} libclang-${{ matrix.llvm }}-dev libeigen3-dev libboost-dev libzstd-dev
+          sudo python3 -m pip install --upgrade pip lit
+    - uses: actions/checkout@v4
+    - name: mkdir
+      run: rm -rf build && mkdir build
+    - name: cmake
+      working-directory: build
+      run: cmake ../enzyme -DLLVM_EXTERNAL_LIT=`which lit` -DCMAKE_BUILD_TYPE=${{ matrix.build }} -DLLVM_DIR=/usr/lib/llvm-${{ matrix.llvm }}/lib/cmake/llvm
+    - name: make
+      run: cd build && make -j `nproc` LLVMEnzyme-${{ matrix.llvm }} ClangEnzyme-${{ matrix.llvm }} LLDEnzyme-${{ matrix.llvm }}  
+    - name: make test-cmake
+      working-directory: build
+      run: make -j `nproc` test-cmake
+    - name: make check-enzyme-integration
+      working-directory: build
+      run: make -j `nproc` check-enzyme-integration
diff --git a/.github/workflows/doxygen.yml b/.github/workflows/doxygen.yml
new file mode 100644
index 000000000000..722fbe6b14a4
--- /dev/null
+++ b/.github/workflows/doxygen.yml
@@ -0,0 +1,41 @@
+name: Build and deploy Doxygen to Scripts
+
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+  build-docs:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: mattnotmitt/doxygen-action@v1.12.0
+        with:
+          working-directory: 'enzyme/'
+          doxyfile-path: 'doxygen.cfg'
+
+      - name: Upload static files as artifact
+        id: deployment
+        uses: actions/upload-pages-artifact@v3 # or specific "vX.X.X" version tag for this action
+        with:
+          path: enzyme/doxygen/html
+          
+  deploy-docs:
+    # Grant GITHUB_TOKEN the permissions required to make a Pages deployment
+    permissions:
+      pages: write      # to deploy to Pages
+      id-token: write   # to verify the deployment originates from an appropriate source
+
+    # Deploy to the github-pages environment
+    environment:
+      name: github-pages
+      url: ${{ steps.deployment.outputs.page_url }}
+
+    needs: build-docs
+    runs-on: ubuntu-latest
+    steps:
+      - name: Deploy to GitHub Pages
+        id: deployment
+        uses: actions/deploy-pages@v4 # or specific "vX.X.X" version tag for this action
diff --git a/.github/workflows/enzyme-bazel.yml b/.github/workflows/enzyme-bazel.yml
new file mode 100644
index 000000000000..d41fdedb7f59
--- /dev/null
+++ b/.github/workflows/enzyme-bazel.yml
@@ -0,0 +1,78 @@
+name: Bazel
+
+on:
+  schedule:
+    - cron: 0 0 * * *
+  push:
+    branches:
+    - main
+    paths:
+      - '.github/workflows/enzyme-bazel.yml'
+      - 'enzyme/Enzyme/**'
+      - 'enzyme/includes/**'
+      - 'enzyme/test/**'
+      - 'enzyme/tools/**'
+      - 'enzyme/BUILD'
+      - 'enzyme/WORKSPACE'
+  pull_request:
+    branches:
+    - main
+    paths:
+      - '.github/workflows/enzyme-bazel.yml'
+      - 'enzyme/Enzyme/**'
+      - 'enzyme/includes/**'
+      - 'enzyme/test/**'
+      - 'enzyme/tools/**'
+      - 'enzyme/BUILD'
+      - 'enzyme/WORKSPACE'
+  merge_group:
+
+concurrency:
+  # Skip intermediate builds: always.
+  # Cancel intermediate builds: only if it is a pull request build.
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: ${{ startsWith(github.ref, 'refs/pull/') }}
+
+jobs:
+  build:
+    name: Enzyme Bazel Build - ${{ matrix.os }}
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+          - linux-x86-n2-32
+        build:
+          - Release
+        llbuild:
+          - Release
+    timeout-minutes: 500 
+
+    container:
+      image: ${{ (contains(matrix.os, 'linux') && 'ghcr.io/enzymead/reactant-docker-images@sha256:91e1edb7a7c869d5a70db06e417f22907be0e67ca86641d48adcea221fedc674' ) || '' }}
+
+    steps:
+      - name: Install Python dependencies
+        run: python -m pip install lit
+      - uses: actions/checkout@v4
+      - uses: actions/checkout@v4
+        with:
+          repository: 'llvm/llvm-project'
+          path: 'llvm-project'
+      - uses: bazel-contrib/setup-bazel@0.14.0
+        name: Set up Bazel
+        with:
+          # Avoid downloading Bazel every time.
+          bazelisk-cache: true
+          # Store build cache per workflow.
+          disk-cache: ${{ github.workflow }}-${{ matrix.os }}-${{ matrix.build }}-${{ matrix.llbuild }}
+          # Share repository cache between workflows.
+          repository-cache: true
+          bazelisk-version: 1.x
+      - name: Build Enzyme
+        run: |
+          cd enzyme
+          bazel build --color=yes :EnzymeStatic :enzymemlir-opt
+      - name: Test Enzyme
+        run: |
+          cd enzyme
+          bazel test --color=yes --test_output=errors ...
diff --git a/.github/workflows/enzyme-ci.yml b/.github/workflows/enzyme-ci.yml
new file mode 100644
index 000000000000..56c84bf8c2f7
--- /dev/null
+++ b/.github/workflows/enzyme-ci.yml
@@ -0,0 +1,111 @@
+name: Enzyme CI
+
+on: 
+  push:
+    branches:
+      - main
+  pull_request:
+  merge_group:
+
+jobs:
+  build-linux:
+    name: Enzyme CI LLVM ${{ matrix.llvm }} ${{ matrix.build }} ${{ matrix.os }}
+    runs-on: ${{ matrix.os }}
+    
+    strategy:
+      fail-fast: false
+      matrix:
+        llvm: ["15", "16"]
+        build: ["Release", "Debug"] # "RelWithDebInfo"
+        os: [ubuntu-22.04]
+  
+    timeout-minutes: 30 
+
+    steps:
+    - name: add llvm 
+      run: |
+          wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key|sudo apt-key add -
+          sudo apt-add-repository "deb http://apt.llvm.org/`lsb_release -c | cut -f2`/ llvm-toolchain-`lsb_release -c | cut -f2`-${{ matrix.llvm }} main" || true
+          sudo apt-get install -y cmake gcc g++ llvm-${{ matrix.llvm }}-dev libzstd-dev
+          sudo python3 -m pip install --upgrade pip lit
+    - uses: actions/checkout@v4
+    - name: mkdir
+      run: rm -rf build && mkdir build
+    - name: cmake
+      working-directory: build
+      run: cmake ../enzyme -DCMAKE_BUILD_TYPE=${{ matrix.build }} -DLLVM_EXTERNAL_LIT=`which lit` -DLLVM_DIR=/usr/lib/llvm-${{ matrix.llvm }}/lib/cmake/llvm
+    - name: make
+      working-directory: build
+      run: make -j `nproc`
+    - name: make check-typeanalysis
+      working-directory: build
+      run: make -j `nproc` check-typeanalysis
+    - name: make check-activityanalysis
+      working-directory: build
+      run: make -j `nproc` check-activityanalysis
+    - name: make check-enzyme
+      working-directory: build
+      run: make  -j `nproc` check-enzyme-bench
+  
+  build-macos:
+    name: Enzyme CI LLVM ${{ matrix.llvm }} ${{ matrix.build }} macOS
+    runs-on: macos-latest
+    
+    strategy:
+      fail-fast: false
+      matrix:
+        llvm: ["15", "16"]
+        build: ["Release", "Debug"] # "RelWithDebInfo"
+  
+    timeout-minutes: 30 
+    steps:
+    - name: add llvm 
+      run: |
+          brew update
+          brew uninstall cmake
+          brew install llvm@${{ matrix.llvm }} make cmake
+          sudo python3 -m pip install --upgrade --break-system-packages --user pip lit requests
+    - uses: actions/checkout@v4
+    - name: mkdir
+      run: rm -rf build && mkdir build
+    - name: cmake
+      working-directory: build
+      run: cmake ../enzyme -DCMAKE_BUILD_TYPE=${{ matrix.build }} -DLLVM_EXTERNAL_LIT=`find /Users/runner/Library/Python/ -iname lit` -DLLVM_DIR=`brew --prefix llvm@${{ matrix.llvm }}`/lib/cmake/llvm
+    - name: make
+      working-directory: build
+      run: make -j 3
+    - name: make check-typeanalysis
+      working-directory: build
+      run: make -j 3 check-typeanalysis
+    - name: make check-activityanalysis
+      working-directory: build
+      run: make -j 3 check-activityanalysis
+    - name: make check-enzyme
+      working-directory: build
+      run: make -j3 check-enzyme-bench
+
+  build-xcode:
+    name: Enzyme CI LLVM ${{ matrix.llvm }} ${{ matrix.build }} macOS XCode
+    runs-on: macos-latest
+
+    strategy:
+      fail-fast: false
+      matrix:
+        llvm: ["16"]
+        build: ["Release"] # "RelWithDebInfo"
+
+    timeout-minutes: 30
+    steps:
+    - name: add llvm
+      run: |
+          brew uninstall cmake
+          brew install llvm@${{ matrix.llvm }} make cmake gcc
+          sudo python3 -m pip install --upgrade --break-system-packages --user pip lit
+    - uses: actions/checkout@v4
+    - name: mkdir
+      run: rm -rf build && mkdir build
+    - name: cmake
+      working-directory: build
+      run: |
+          cmake ../enzyme -GXcode -DCMAKE_BUILD_TYPE=${{ matrix.build }} -DLLVM_EXTERNAL_LIT=`which lit` -DLLVM_DIR=`brew --prefix llvm@${{ matrix.llvm }}`/lib/cmake/llvm
+          cmake --build . --parallel 3
diff --git a/.github/workflows/enzyme-julia.yml b/.github/workflows/enzyme-julia.yml
new file mode 100644
index 000000000000..6ae9f3d0ff5a
--- /dev/null
+++ b/.github/workflows/enzyme-julia.yml
@@ -0,0 +1,57 @@
+name: Julia Enzyme CI
+
+on:
+  push:
+    branches:
+    - main
+  pull_request:
+    branches:
+    - main
+  merge_group:
+
+jobs:
+  build:
+    name: Enzyme CI Julia ${{ matrix.version }} ${{ matrix.os }}
+    runs-on: ${{ matrix.os }}
+    continue-on-error: ${{ matrix.version == 'nightly' }}
+    strategy:
+      fail-fast: false
+      matrix:
+        version:
+          - '1.10'
+        os:
+          - ubuntu-latest
+          - macOS-latest
+        arch:
+          - x64
+    timeout-minutes: 60 
+    steps:
+    - uses: actions/checkout@v4
+    - uses: actions/checkout@v4
+      with:
+        repository: 'EnzymeAD/Enzyme.jl'
+        path: ./jl
+        ref: main
+    - uses: julia-actions/setup-julia@v1
+      with:
+        version: ${{ matrix.version }}
+        arch: ${{ matrix.arch }}
+
+    - name: Build libEnzyme
+      if: ${{ matrix.os != 'macOS-latest'}}
+      run: |
+        julia --project=jl/deps -e 'using Pkg; Pkg.instantiate()'
+        julia --project=jl/deps jl/deps/build_local.jl ./enzyme
+    - name: Build libEnzyme MacOS
+      if: ${{ matrix.os == 'macOS-latest'}}
+      run: |
+        julia --project=jl/deps -e 'using Pkg; Pkg.instantiate()'
+        SDKROOT=`xcrun --show-sdk-path` julia --project=jl/deps jl/deps/build_local.jl ./enzyme
+    - name: Dev EnzymeCore
+      run: julia --project=jl -e 'using Pkg; Pkg.develop(path="jl/lib/EnzymeCore")'
+    - uses: julia-actions/julia-buildpkg@v1
+      with:
+        project: jl
+    - uses: julia-actions/julia-runtest@v1
+      with:
+        project: jl
diff --git a/.github/workflows/enzyme-mlir.yml b/.github/workflows/enzyme-mlir.yml
new file mode 100644
index 000000000000..db3d96e4fd24
--- /dev/null
+++ b/.github/workflows/enzyme-mlir.yml
@@ -0,0 +1,88 @@
+name: MLIR
+
+on:
+  push:
+    branches:
+    - main
+  pull_request:
+    branches:
+    - main
+  merge_group:
+
+jobs:
+  build-linux:
+    name: MLIR ${{ matrix.build }} ${{ matrix.os }}
+    runs-on: ${{ matrix.os }}
+
+    strategy:
+      fail-fast: false
+      matrix:
+        build: ["Release", "Debug"] # "RelWithDebInfo"
+        llbuild: ["Release"]
+        os: [linux-x86-n2-32]
+
+    timeout-minutes: 500
+
+    container:
+      image: ${{ (contains(matrix.os, 'linux') && 'ghcr.io/enzymead/reactant-docker-images@sha256:91e1edb7a7c869d5a70db06e417f22907be0e67ca86641d48adcea221fedc674' ) || '' }}
+
+    steps:
+    - name: Install dependencies
+      run: |
+          apt-get update
+          apt-get install -y binutils ninja-build cmake gcc g++ python3 python3-dev
+
+    - uses: actions/checkout@v4
+      with:
+        path: 'Enzyme'
+
+    - uses: actions/checkout@v4
+      with:
+        repository: 'llvm/llvm-project'
+        ref: 'fc44a4fcd3c54be927c15ddd9211aca1501633e7'
+        path: 'llvm-project'
+
+    - name: Set BASE_DIR
+      # We have to use `${GITHUB_WORKSPACE}` instead of `github.workspace` because GitHub
+      # is terrible and the two don't match inside containers:
+      # https://github.com/actions/runner/issues/2058
+      run: |
+        BASE_DIR=${GITHUB_WORKSPACE}
+        # Make sure this directory exists, for good measure
+        ls -lhrt "${BASE_DIR}"/Enzyme
+        ls -lhrt "${BASE_DIR}"/llvm-project
+        echo "BASE_DIR=${BASE_DIR}" >> ${GITHUB_ENV}
+
+    - name: Get MLIR commit hash
+      id: mlir-commit
+      working-directory: 'llvm-project'
+      run: echo "sha_short=$(git rev-parse --short HEAD)" >> $GITHUB_OUTPUT
+
+    - name: Cache MLIR
+      id: cache-mlir
+      uses: actions/cache@v4
+      with:
+        path: ${{ env.BASE_DIR }}/llvm-project/mlir-build
+        key: ${{ matrix.llbuild }}-${{ matrix.os }}-mlir-${{ steps.mlir-commit.outputs.sha_short }}
+
+    - name: MLIR build
+      if: steps.cache-mlir.outputs.cache-hit != 'true'
+      working-directory: ${{ env.BASE_DIR }}/'llvm-project'
+      run: |
+        mkdir mlir-build && cd mlir-build && cmake ../llvm -GNinja -DLLVM_ENABLE_PROJECTS="llvm;clang;mlir" -DLLVM_ENABLE_RUNTIMES=openmp -DCMAKE_BUILD_TYPE=${{ matrix.llbuild }} \
+        -DLLVM_ENABLE_ASSERTIONS=ON -DLLVM_TARGETS_TO_BUILD=X86 \
+        -DLLVM_USE_LINKER=gold -DLLVM_PARALLEL_LINK_JOBS=2 \
+        -DCLANG_ENABLE_STATIC_ANALYZER=OFF -DCLANG_ENABLE_ARCMT=OFF \
+        -DLLVM_OPTIMIZED_TABLEGEN=ON && ninja || echo "already built"
+
+    - name: Enzyme build
+      working-directory: ${{ env.BASE_DIR }}/'Enzyme'
+      run: |
+          mkdir enzyme-build && cd enzyme-build
+          cmake ../enzyme -GNinja -DCMAKE_BUILD_TYPE=${{ matrix.build }} -DLLVM_DIR=${{ env.BASE_DIR }}/llvm-project/mlir-build -DENZYME_MLIR=ON
+          ninja
+
+    - name: Check enzyme-mlir
+      working-directory: 'Enzyme/enzyme-build'
+      run: ninja check-enzymemlir
+
diff --git a/.github/workflows/format.yml b/.github/workflows/format.yml
new file mode 100644
index 000000000000..93468da2bdf6
--- /dev/null
+++ b/.github/workflows/format.yml
@@ -0,0 +1,20 @@
+name: Clang-Format
+
+on:
+  push:
+  pull_request:
+  merge_group:
+   
+jobs:
+  build:
+    name: Format
+    runs-on: ubuntu-latest
+    
+    steps:
+    - uses: actions/checkout@v4
+    - uses: DoozyX/clang-format-lint-action@v0.20
+      with:
+        source: 'enzyme/Enzyme enzyme/tools/enzyme-tblgen'
+        exclude: './CMakeLists.txt enzyme/Enzyme/SCEV'
+        style: 'llvm'
+        clangFormatVersion: 16
diff --git a/.github/workflows/fortran.yml b/.github/workflows/fortran.yml
new file mode 100644
index 000000000000..94ef0d17451e
--- /dev/null
+++ b/.github/workflows/fortran.yml
@@ -0,0 +1,80 @@
+name: Fortran
+
+on:
+  push:
+    branches: 
+    - main
+    paths:
+      - '.github/workflows/fortran.yml'
+      - 'enzyme/Enzyme/**'
+      - 'enzyme/includes/**'
+      - 'enzyme/test/**'
+      - 'enzyme/tools/**'
+      - 'enzyme/benchmarks/**'
+      - 'enzyme/cmake/**'
+      - 'enzyme/CMakeLists.txt'
+      - 'enzyme/CMakePresets.json'
+  pull_request:
+    branches: 
+    - main
+    paths:
+      - '.github/workflows/fortran.yml'
+      - 'enzyme/Enzyme/**'
+      - 'enzyme/includes/**'
+      - 'enzyme/test/**'
+      - 'enzyme/tools/**'
+      - 'enzyme/benchmarks/**'
+      - 'enzyme/cmake/**'
+      - 'enzyme/CMakeLists.txt'
+      - 'enzyme/CMakePresets.json'
+  merge_group:
+
+concurrency:
+   # Skip intermediate builds: always.
+   # Cancel intermediate builds: only if it is a pull request build.
+   group: ${{ github.workflow }}-${{ github.ref }}
+   cancel-in-progress: ${{ startsWith(github.ref, 'refs/pull/') }}
+    
+jobs:
+  build-and-test-fortran:
+    name: Fortran ${{matrix.build}} ${{matrix.os}}
+    runs-on: ${{matrix.os}}
+    strategy:
+      fail-fast: false
+      matrix:
+        build: ["Release", "Debug"]
+        os: [ubuntu-22.04]
+        llvm: [15]
+        include:
+          - llvm: 15
+            ifx: 2023.0.0
+            mpi: 2021.7.1
+    timeout-minutes: 60 
+    steps:
+    - name: add llvm
+      run: |
+        wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key|sudo apt-key add -
+        sudo apt-add-repository "deb http://apt.llvm.org/`lsb_release -c | cut -f2`/ llvm-toolchain-`lsb_release -c | cut -f2`-${{ matrix.llvm }} main"
+        sudo apt-get update && sudo apt-get install -y cmake gcc g++ llvm-${{ matrix.llvm }}-dev ninja-build pip
+        sudo python3 -m pip install --upgrade pip lit
+    - name: add intel tools
+      run: |
+        wget https://apt.repos.intel.com/intel-gpg-keys/GPG-PUB-KEY-INTEL-SW-PRODUCTS.PUB
+        sudo apt-key add GPG-PUB-KEY-INTEL-SW-PRODUCTS.PUB
+        rm GPG-PUB-KEY-INTEL-SW-PRODUCTS.PUB
+        sudo echo "deb https://apt.repos.intel.com/oneapi all main" | sudo tee /etc/apt/sources.list.d/oneAPI.list
+        sudo apt-get update && sudo apt-get install -y intel-oneapi-compiler-fortran-${{ matrix.ifx }} intel-oneapi-mpi-${{ matrix.mpi }} intel-oneapi-mpi-devel-${{ matrix.mpi }}
+        source /opt/intel/oneapi/setvars.sh
+        printenv >> $GITHUB_ENV
+    - uses: actions/checkout@v4
+    - name: generate build system
+      run: |
+        rm -rf build && mkdir build && cd build
+        cmake ../enzyme -GNinja -DCMAKE_BUILD_TYPE=${{ matrix.build }} -DLLVM_DIR=/usr/lib/llvm-${{ matrix.llvm }}/lib/cmake/llvm -DLLVM_EXTERNAL_LIT=`which lit` -DENZYME_IFX=ON
+    - name: build enzyme
+      working-directory: 'build'
+      run: ninja LLVMEnzyme-${{ matrix.llvm }}
+    - name: run Fortran tests
+      working-directory: 'build'
+      run: ninja check-enzyme-fortran
+        
diff --git a/.github/workflows/tagger.yml b/.github/workflows/tagger.yml
new file mode 100644
index 000000000000..187f72e48f25
--- /dev/null
+++ b/.github/workflows/tagger.yml
@@ -0,0 +1,54 @@
+name: Tag CI
+
+on:
+  release:
+    types:
+      - created
+
+jobs:
+  build:
+    name: Enzyme Tag CI
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/create-github-app-token@v2
+      id: generate_token
+      with:
+        app-id: ${{ secrets.APP_ID }}
+        private-key: ${{ secrets.APP_PRIVATE_KEY }}
+        owner: JuliaPackaging
+        repositories: |
+          Yggdrasil
+
+    - uses: actions/checkout@v5
+      with:
+          repository: 'JuliaPackaging/Yggdrasil'
+          path: ygg
+
+    - uses: actions/checkout@v5
+      with:
+        path: enz
+    - name: replace
+      run: |
+          cd ygg
+          git rm -rf E/Enzyme
+          mkdir -p E/Enzyme/
+          cd E/Enzyme
+          cp ../../../enz/.packaging/build_tarballs.jl build_tarballs.jl
+          sed "s~%ENZYME_VERSION%~${GITHUB_REF}~g" build_tarballs.jl -i
+          sed "s~%ENZYME_HASH%~${GITHUB_SHA}~g" build_tarballs.jl -i
+          git add .
+    - name: Create Pull Request
+      id: cpr
+      uses: peter-evans/create-pull-request@v7
+      with:
+        path: ygg
+        commit-message: "Upgrade enzyme to ${{ github.ref }}"
+        title: "Upgrade enzyme to ${{ github.ref }}"
+        token: ${{ steps.generate_token.outputs.token }}
+        reviewers: vchuravy
+        branch: enzyme/${{ github.ref }}
+        body: "Automatic PR generated for https://github.com/EnzymeAD/Enzyme "
+    - name: Check outputs
+      run: |
+        echo "Pull Request Number - ${{ steps.cpr.outputs.pull-request-number }}"
+        echo "Pull Request URL - ${{ steps.cpr.outputs.pull-request-url }}"