Add LLVM build (#30)

Author: leshikus

.github/workflows/build-llvm.yml

@@ -0,0 +1,39 @@
+name: LLVM Build
+
+on:
+  workflow_dispatch:
+
+permissions: read-all
+
+jobs:
+  build:
+    name: Build
+    runs-on: [self-hosted]
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Set LLVM hash
+        run: |
+          echo LLVM_HASH=$(cat cmake/llvm-version.txt) >>$GITHUB_ENV
+
+      - uses: actions/checkout@v4
+        with:
+          repository: llvm/llvm-project
+          ref: ${{ env.LLVM_HASH }}
+
+      - name: Build
+        run: |
+          mkdir llvm-install
+          cmake -G Ninja llvm -B build -DCMAKE_INSTALL_PREFIX=llvm-install \
+            -DCMAKE_BUILD_TYPE=Release -DLLVM_ENABLE_ASSERTIONS=true -DLLVM_ENABLE_PROJECTS="mlir" -DLLVM_TARGETS_TO_BUILD="X86" -DLLVM_INSTALL_UTILS=true -DCMAKE_EXPORT_COMPILE_COMMANDS=ON
+          cmake --build build --target install
+          cd llvm-install
+          tar -zcf ../llvm.tgz .
+
+      - uses: actions/upload-artifact@v4
+        with:
+          name: llvm-${{ env.LLVM_HASH }}
+          path: llvm.tgz
+
+

.github/workflows/build.yml

@@ -15,10 +15,12 @@ jobs:
     name: Build
     runs-on: [self-hosted]
 
+    env:
+      GH_TOKEN: ${{ github.token }}    
+
     steps:
       - uses: actions/checkout@v4
 
       - name: Build
         run: |
-          cmake -S . -G Ninja -B build
-          cmake --build build --parallel $(nproc)
+          scripts/compile.sh

cmake/llvm-version.txt

@@ -1 +1 @@
-179e174945b6c0da462c534504720c9544aebf84
+179e174945b6c0da462c534504720c9544aebf84

scripts/compile.sh

@@ -0,0 +1,25 @@
+#!/bin/bash -e
+
+repo=intel/graph-compiler
+
+cd $(dirname "$0")/..
+llvm_dir=$(cd ..; pwd -P)/install/llvm
+llvm_hash=$(cat cmake/llvm-version.txt)
+
+get_llvm() (
+    local run_id
+
+    run_id=$(gh run list -w "LLVM Build" --repo $repo --json databaseId --jq '.[0].databaseId')
+
+    gh run download "$run_id" \
+       --repo "$repo" \
+       --pattern "llvm-$llvm_hash" \
+       --dir "$llvm_dir"
+    cd "$llvm_dir"
+    tar -zxf "llvm-$llvm_hash"/llvm.tgz
+)
+
+test -f "$llvm_dir/llvm-$llvm_hash"/llvm.tgz || get_llvm
+
+cmake -S . -G Ninja -B build
+cmake --build build --parallel $(nproc)