HUGR engine overhaul: work-queue interpreter with full control flow

.github/workflows/julia-release.yml

@@ -16,6 +16,8 @@ permissions:
 
 env:
   TRIGGER_ON_PR_PUSH: true  # Set to true to enable triggers on PR pushes
+  LLVM_VERSION: "21.1"
+  LLVM_RELEASE_VERSION: "21.1.8"
   CARGO_HTTP_MULTIPLEXING: "false"
   CARGO_NET_GIT_FETCH_WITH_CLI: "true"
   CARGO_NET_RETRY: "10"
@@ -140,35 +142,48 @@ jobs:
       - name: Set up Rust
         run: rustup show
 
-      - name: Install LLVM 14.0.6 using pecos-llvm (Unix)
+      - name: Install LLVM 21.1 (Unix)
         if: runner.os != 'Windows'
         run: |
-          echo "Installing LLVM using pecos..."
-          cargo run --locked -p pecos-cli --release -- install llvm
+          if [ "$RUNNER_OS" = "macOS" ]; then
+            echo "Installing LLVM 21 with Homebrew..."
+            HOMEBREW_NO_AUTO_UPDATE=1 brew install llvm@21
+            LLVM_PREFIX="$(brew --prefix llvm@21)"
+          else
+            echo "Installing LLVM 21.1 using PECOS-managed packages..."
+            cargo run --locked -p pecos-cli --release -- llvm ensure --managed --no-configure || bash scripts/ci/install-llvm-21-conda-linux.sh
+            LLVM_PREFIX="$HOME/.pecos/deps/llvm-21.1"
+          fi
 
           echo "Setting LLVM environment variables..."
-          export PECOS_LLVM=$(cargo run --locked -p pecos-cli --release -- llvm find 2>/dev/null)
-          export LLVM_SYS_140_PREFIX="$PECOS_LLVM"
+          cargo run --locked -p pecos-cli --release -- llvm configure "$LLVM_PREFIX"
+          export PECOS_LLVM="$LLVM_PREFIX"
+          export LLVM_SYS_211_PREFIX="$LLVM_PREFIX"
 
           echo "PECOS_LLVM=$PECOS_LLVM" >> $GITHUB_ENV
-          echo "LLVM_SYS_140_PREFIX=$LLVM_SYS_140_PREFIX" >> $GITHUB_ENV
+          echo "LLVM_SYS_211_PREFIX=$LLVM_SYS_211_PREFIX" >> $GITHUB_ENV
 
           echo "Verifying LLVM installation..."
           cargo run --locked -p pecos-cli --release -- llvm check
 
-      - name: Install LLVM 14.0.6 using pecos-llvm (Windows)
+      - name: Install LLVM 21.1 (Windows)
         if: runner.os == 'Windows'
         shell: pwsh
         run: |
-          Write-Host "Installing LLVM using pecos..."
-          cargo run --locked -p pecos-cli --release -- install llvm
+          $llvmRoot = Join-Path $env:USERPROFILE ".pecos\deps\llvm-21.1"
+          $llvmPrefix = Join-Path $llvmRoot "Library"
+          Write-Host "Installing conda-forge LLVM 21.1..."
+          ./scripts/ci/install-llvm-21-windows.ps1 -InstallDir $llvmRoot -Version ${{ env.LLVM_RELEASE_VERSION }}
 
           Write-Host "Setting LLVM environment variables..."
-          $env:PECOS_LLVM = (cargo run --locked -p pecos-cli --release -- llvm find 2>$null)
-          $env:LLVM_SYS_140_PREFIX = $env:PECOS_LLVM
+          $env:PECOS_LLVM = $llvmPrefix
+          $env:LLVM_SYS_211_PREFIX = $env:PECOS_LLVM
+          $env:LIBCLANG_PATH = Join-Path $llvmPrefix "bin"
+          cargo run --locked -p pecos-cli --release -- llvm configure "$env:PECOS_LLVM"
 
           "PECOS_LLVM=$env:PECOS_LLVM" | Out-File -FilePath $env:GITHUB_ENV -Encoding utf8 -Append
-          "LLVM_SYS_140_PREFIX=$env:LLVM_SYS_140_PREFIX" | Out-File -FilePath $env:GITHUB_ENV -Encoding utf8 -Append
+          "LLVM_SYS_211_PREFIX=$env:LLVM_SYS_211_PREFIX" | Out-File -FilePath $env:GITHUB_ENV -Encoding utf8 -Append
+          "LIBCLANG_PATH=$env:LIBCLANG_PATH" | Out-File -FilePath $env:GITHUB_ENV -Encoding utf8 -Append
 
           Write-Host "Verifying LLVM installation..."
           cargo run --locked -p pecos-cli --release -- llvm check

.github/workflows/julia-test.yml

@@ -77,23 +77,23 @@ jobs:
     # NOTE: LLVM is not currently needed for Julia FFI since we use pecos with default-features = false
     # Keeping this commented out in case we need to re-enable LLVM features in the future.
     #
-    # - name: Install LLVM 14.0.6 using pecos (Unix)
+    # - name: Install LLVM 21.1 using pecos (Unix)
     #   if: runner.os != 'Windows'
     #   run: |
     #     echo "Installing LLVM using pecos..."
     #     cargo run -p pecos-cli --release -- install llvm
     #
     #     echo "Setting LLVM environment variables..."
     #     export PECOS_LLVM=$(cargo run -p pecos-cli --release -- llvm find 2>/dev/null)
-    #     export LLVM_SYS_140_PREFIX="$PECOS_LLVM"
+    #     export LLVM_SYS_211_PREFIX="$PECOS_LLVM"
     #
     #     echo "PECOS_LLVM=$PECOS_LLVM" >> $GITHUB_ENV
-    #     echo "LLVM_SYS_140_PREFIX=$LLVM_SYS_140_PREFIX" >> $GITHUB_ENV
+    #     echo "LLVM_SYS_211_PREFIX=$LLVM_SYS_211_PREFIX" >> $GITHUB_ENV
     #
     #     echo "Verifying LLVM installation..."
     #     cargo run -p pecos-cli --release -- llvm check
     #
-    # - name: Install LLVM 14.0.6 using pecos (Windows)
+    # - name: Install LLVM 21.1 using pecos (Windows)
     #   if: runner.os == 'Windows'
     #   shell: pwsh
     #   run: |
@@ -102,10 +102,10 @@ jobs:
     #
     #     Write-Host "Setting LLVM environment variables..."
     #     $env:PECOS_LLVM = (cargo run -p pecos-cli --release -- llvm find 2>$null)
-    #     $env:LLVM_SYS_140_PREFIX = $env:PECOS_LLVM
+    #     $env:LLVM_SYS_211_PREFIX = $env:PECOS_LLVM
     #
     #     "PECOS_LLVM=$env:PECOS_LLVM" | Out-File -FilePath $env:GITHUB_ENV -Encoding utf8 -Append
-    #     "LLVM_SYS_140_PREFIX=$env:LLVM_SYS_140_PREFIX" | Out-File -FilePath $env:GITHUB_ENV -Encoding utf8 -Append
+    #     "LLVM_SYS_211_PREFIX=$env:LLVM_SYS_211_PREFIX" | Out-File -FilePath $env:GITHUB_ENV -Encoding utf8 -Append
     #
     #     Write-Host "Verifying LLVM installation..."
     #     cargo run -p pecos-cli --release -- llvm check

.github/workflows/pr-core-gate.yml

@@ -19,7 +19,8 @@ permissions:
   contents: read
 
 env:
-  LLVM_VERSION: "14.0.6"
+  LLVM_VERSION: "21.1"
+  LLVM_RELEASE_VERSION: "21.1.8"
   RUSTFLAGS: -C debuginfo=0
   RUST_BACKTRACE: 1
   PYTHONUTF8: 1
@@ -127,8 +128,8 @@ jobs:
         id: cache-llvm
         uses: actions/cache/restore@27d5ce7f107fe9357f9df03efb73ab90386fccae # v5
         with:
-          path: ~/.pecos/deps/llvm-14
-          key: llvm-${{ env.LLVM_VERSION }}-${{ runner.os }}-${{ runner.arch }}-v2
+          path: ~/.pecos/deps/llvm-21.1
+          key: llvm-${{ env.LLVM_RELEASE_VERSION }}-${{ runner.os }}-${{ runner.arch }}-v3
 
       - name: Ensure LLVM ${{ env.LLVM_VERSION }}
         if: steps.detect.outputs.run == 'true'
@@ -229,8 +230,8 @@ jobs:
         id: cache-llvm
         uses: actions/cache/restore@27d5ce7f107fe9357f9df03efb73ab90386fccae # v5
         with:
-          path: ~/.pecos/deps/llvm-14
-          key: llvm-${{ env.LLVM_VERSION }}-${{ runner.os }}-${{ runner.arch }}-v2
+          path: ~/.pecos/deps/llvm-21.1
+          key: llvm-${{ env.LLVM_RELEASE_VERSION }}-${{ runner.os }}-${{ runner.arch }}-v3
 
       - name: Ensure LLVM ${{ env.LLVM_VERSION }}
         if: steps.detect.outputs.run == 'true'