feat!: Upgrade LLVM code in tket-qsystem and qis-compiler

.github/workflows/ci.yml

@@ -26,8 +26,9 @@ env:
 
   # different strings for install action and feature name
   # adapted from https://github.com/TheDan64/inkwell/blob/master/.github/workflows/test.yml
-  LLVM_VERSION: "14.0"
-  LLVM_FEATURE_NAME: "14-0"
+  LLVM_MAIN_VERSION: "21"
+  LLVM_VERSION: "21.1"
+  LLVM_FEATURE_NAME: "21-1"
 
   # Path to the cached tket-c-api library
   # When this envvar is set, the `./.github/actions/tket-c-api` action **must** be run to fetch the artifacts
@@ -76,9 +77,11 @@ jobs:
       - name: Check formatting
         run: cargo fmt -- --check
       - name: Install LLVM and Clang
-        uses: KyleMayes/install-llvm-action@v2
-        with:
-          version: ${{ env.LLVM_VERSION }}
+        run: |
+          wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key | sudo apt-key add -
+          sudo add-apt-repository 'deb http://apt.llvm.org/noble/   llvm-toolchain-noble-${{ env.LLVM_MAIN_VERSION }}  main'
+          sudo apt update
+          sudo apt install llvm-${{ env.LLVM_MAIN_VERSION }} libpolly-${{ env.LLVM_MAIN_VERSION }}-dev
       - name: Run clippy
         run: cargo clippy --all-targets --all-features --workspace -- -D warnings
       - name: Build docs
@@ -102,10 +105,11 @@ jobs:
           version: ${{ env.UV_VERSION }}
           enable-cache: true
       - name: Install LLVM and Clang
-        uses: KyleMayes/install-llvm-action@v2
-        with:
-          version: ${{ env.LLVM_VERSION }}
-          directory: ${{ runner.temp }}/llvm
+        run: |
+          wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key | sudo apt-key add -
+          sudo add-apt-repository 'deb http://apt.llvm.org/noble/   llvm-toolchain-noble-${{ env.LLVM_MAIN_VERSION }}  main'
+          sudo apt update
+          sudo apt install llvm-${{ env.LLVM_MAIN_VERSION }} libpolly-${{ env.LLVM_MAIN_VERSION }}-dev
       - name: Install tket-c-api library
         uses: ./.github/actions/tket-c-api
         with:
@@ -193,9 +197,11 @@ jobs:
       - name: Configure default rust toolchain
         run: rustup override set ${{steps.toolchain.outputs.name}}
       - name: Install LLVM and Clang
-        uses: KyleMayes/install-llvm-action@v2
-        with:
-          version: ${{ env.LLVM_VERSION }}
+        run: |
+          wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key | sudo apt-key add -
+          sudo add-apt-repository 'deb http://apt.llvm.org/noble/   llvm-toolchain-noble-${{ env.LLVM_MAIN_VERSION }}  main'
+          sudo apt update
+          sudo apt install llvm-${{ env.LLVM_MAIN_VERSION }} libpolly-${{ env.LLVM_MAIN_VERSION }}-dev
       - name: Install tket-c-api library
         uses: ./.github/actions/tket-c-api
         with:
@@ -227,9 +233,11 @@ jobs:
         with:
           toolchain: ${{ matrix.rust }}
       - name: Install LLVM and Clang
-        uses: KyleMayes/install-llvm-action@v2
-        with:
-          version: ${{ env.LLVM_VERSION }}
+        run: |
+          wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key | sudo apt-key add -
+          sudo add-apt-repository 'deb http://apt.llvm.org/noble/   llvm-toolchain-noble-${{ env.LLVM_MAIN_VERSION }}  main'
+          sudo apt update
+          sudo apt install llvm-${{ env.LLVM_MAIN_VERSION }} libpolly-${{ env.LLVM_MAIN_VERSION }}-dev
       - name: Install tket-c-api library
         uses: ./.github/actions/tket-c-api
         with:
@@ -261,9 +269,11 @@ jobs:
           toolchain: "nightly"
           components: llvm-tools-preview
       - name: Install LLVM and Clang
-        uses: KyleMayes/install-llvm-action@v2
-        with:
-          version: ${{ env.LLVM_VERSION }}
+        run: |
+          wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key | sudo apt-key add -
+          sudo add-apt-repository 'deb http://apt.llvm.org/noble/   llvm-toolchain-noble-${{ env.LLVM_MAIN_VERSION }}  main'
+          sudo apt update
+          sudo apt install llvm-${{ env.LLVM_MAIN_VERSION }} libpolly-${{ env.LLVM_MAIN_VERSION }}-dev
       - name: Install tket-c-api library
         uses: ./.github/actions/tket-c-api
         with:
@@ -308,9 +318,11 @@ jobs:
       - name: Configure default rust toolchain
         run: rustup override set ${{steps.toolchain.outputs.name}}
       - name: Install LLVM and Clang
-        uses: KyleMayes/install-llvm-action@v2
-        with:
-          version: ${{ env.LLVM_VERSION }}
+        run: |
+          wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key | sudo apt-key add -
+          sudo add-apt-repository 'deb http://apt.llvm.org/noble/   llvm-toolchain-noble-${{ env.LLVM_MAIN_VERSION }}  main'
+          sudo apt update
+          sudo apt install llvm-${{ env.LLVM_MAIN_VERSION }} libpolly-${{ env.LLVM_MAIN_VERSION }}-dev
       - name: Install tket-c-api library
         uses: ./.github/actions/tket-c-api
         with:
@@ -391,9 +403,11 @@ jobs:
           version: ${{ env.UV_VERSION }}
           enable-cache: true
       - name: Install LLVM and Clang
-        uses: KyleMayes/install-llvm-action@v2
-        with:
-          version: ${{ env.LLVM_VERSION }}
+        run: |
+          wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key | sudo apt-key add -
+          sudo add-apt-repository 'deb http://apt.llvm.org/noble/   llvm-toolchain-noble-${{ env.LLVM_MAIN_VERSION }}  main'
+          sudo apt update
+          sudo apt install llvm-${{ env.LLVM_MAIN_VERSION }} libpolly-${{ env.LLVM_MAIN_VERSION }}-dev
       - name: Install Python ${{ env.PYTHON_LOWEST }}
         run: uv python install ${{ env.PYTHON_LOWEST }}
       - name: Run qis-compiler tests

.github/workflows/python-qis-wheels.yml

@@ -46,7 +46,8 @@ jobs:
       matrix:
         os:
           - ubuntu-latest
-          - ubuntu-24.04-arm
+          # TODO: Temporarily disabled until we create a manylinux_2_28 compatible docker image for ARM with LLVM 21.
+          #- ubuntu-24.04-arm
           - macos-15
           - macos-15-intel
           - windows-2022

.github/workflows/python-wheels.yml

@@ -33,8 +33,9 @@ env:
   RUSTC_WRAPPER: "sccache"
   # different strings for install action and feature name
   # adapted from https://github.com/TheDan64/inkwell/blob/master/.github/workflows/test.yml
-  LLVM_VERSION: "14.0"
-  LLVM_FEATURE_NAME: "14-0"
+  LLVM_MAIN_VERSION: "21"
+  LLVM_VERSION: "21.1"
+  LLVM_FEATURE_NAME: "21-1"
 
 jobs:
   # Check if the tag matches the package name,
@@ -123,9 +124,11 @@ jobs:
           version: ${{ env.UV_VERSION }}
           enable-cache: true
       - name: Install LLVM and Clang
-        uses: KyleMayes/install-llvm-action@v2
-        with:
-          version: ${{ env.LLVM_VERSION }}
+        run: |
+          wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key | sudo apt-key add -
+          sudo add-apt-repository 'deb http://apt.llvm.org/noble/   llvm-toolchain-noble-${{ env.LLVM_MAIN_VERSION }}  main'
+          sudo apt update
+          sudo apt install llvm-${{ env.LLVM_MAIN_VERSION }} libpolly-${{ env.LLVM_MAIN_VERSION }}-dev
 
         # Set the path to the cached tket-c-api library
         # When this envvar is set, the `./.github/actions/tket-c-api` action **must** be run to fetch the artifacts

.github/workflows/unsoundness.yml

@@ -23,8 +23,9 @@ env:
 
   # different strings for install action and feature name
   # adapted from https://github.com/TheDan64/inkwell/blob/master/.github/workflows/test.yml
-  LLVM_VERSION: "14.0"
-  LLVM_FEATURE_NAME: "14-0"
+  LLVM_MAIN_VERSION: "21"
+  LLVM_VERSION: "21.1"
+  LLVM_FEATURE_NAME: "21-1"
 
   # Path to the cached tket-c-api library
   # When this envvar is set, the `./.github/actions/tket-c-api` action **must** be run to fetch the artifacts
@@ -46,9 +47,11 @@ jobs:
           rustup override set nightly
           cargo miri setup
       - name: Install LLVM and Clang
-        uses: KyleMayes/install-llvm-action@v2
-        with:
-          version: ${{ env.LLVM_VERSION }}
+        run: |
+          wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key | sudo apt-key add -
+          sudo add-apt-repository 'deb http://apt.llvm.org/noble/   llvm-toolchain-noble-${{ env.LLVM_MAIN_VERSION }}  main'
+          sudo apt update
+          sudo apt install llvm-${{ env.LLVM_MAIN_VERSION }} libpolly-${{ env.LLVM_MAIN_VERSION }}-dev
       - name: Install tket-c-api library
         uses: ./.github/actions/tket-c-api
         with: