Merge commit '39683d8eb7' into sync_cg_gcc-2022-03-26

compiler/rustc_codegen_gcc/.github/workflows/ci.yml

@@ -10,10 +10,17 @@ jobs:
 
     strategy:
       fail-fast: false
+      matrix:
+        libgccjit_version: ["libgccjit.so", "libgccjit_without_int128.so"]
 
     steps:
     - uses: actions/checkout@v2
 
+    - uses: actions/checkout@v2
+      with:
+        repository: llvm/llvm-project
+        path: llvm
+
     - name: Install packages
       run: sudo apt-get install ninja-build ripgrep
 
@@ -21,19 +28,25 @@ jobs:
       uses: dawidd6/action-download-artifact@v2
       with:
           workflow: main.yml
-          name: libgccjit.so
+          name: ${{ matrix.libgccjit_version }}
           path: gcc-build
           repo: antoyo/gcc
+          search_artifacts: true # Because, instead, the action only check the last job ran and that won't work since we want multiple artifacts.
 
     - name: Setup path to libgccjit
       run: |
           echo $(readlink -f gcc-build) > gcc_path
+          # NOTE: the filename is still libgccjit.so even when the artifact name is different.
           ln gcc-build/libgccjit.so gcc-build/libgccjit.so.0
 
-    - name: Set LIBRARY_PATH
+    - name: Set env
       run: |
         echo "LIBRARY_PATH=$(cat gcc_path)" >> $GITHUB_ENV
         echo "LD_LIBRARY_PATH=$(cat gcc_path)" >> $GITHUB_ENV
+        echo "workspace="$GITHUB_WORKSPACE >> $GITHUB_ENV
+
+    - name: Set RUST_COMPILER_RT_ROOT
+      run: echo "RUST_COMPILER_RT_ROOT="${{ env.workspace }}/llvm/compiler-rt >> $GITHUB_ENV
 
     # https://github.com/actions/cache/issues/133
     - name: Fixup owner of ~/.cargo/