CI: build LLVM 21 (#30)

Author: marxin

.github/workflows/ci.yml

@@ -10,7 +10,7 @@ jobs:
       matrix:
         target:
           - id: "linux-amd64"
-            os: "ubuntu-20.04"
+            os: "ubuntu-24.04"
             tar_extra_args: ""
           - id: "linux-aarch64"
             os: "ubuntu-24.04-arm"
@@ -35,7 +35,7 @@ jobs:
             # adds an additional copy per link, but it reliably works and
             # the additional size is not too large on Windows.
             tar_extra_args: "--dereference"
-        llvm_version: ["18.x"]
+        llvm_version: ["21.x"]
         llvm_repo_url: ["https://github.com/llvm/llvm-project.git"]
       fail-fast: true
 
@@ -55,7 +55,7 @@ jobs:
         if: matrix.target.id == 'linux-riscv64'
         shell: bash
         run: |
-          sudo apt-get install gcc-12-riscv64-linux-gnu g++-12-riscv64-linux-gnu gcc-12-multilib binutils-riscv64-linux-gnu libgcc-12-dev-riscv64-cross libstdc++6-riscv64-cross -y
+          sudo apt-get install gcc-13-riscv64-linux-gnu g++-13-riscv64-linux-gnu gcc-13-multilib binutils-riscv64-linux-gnu libgcc-13-dev-riscv64-cross libstdc++6-riscv64-cross -y
 
       - name: Install `ninja` on macOS
         if: startsWith(matrix.target.id, 'darwin-')
@@ -122,11 +122,11 @@ jobs:
 
     strategy:
       matrix:
-        llvm_version: ["18.x"]
+        llvm_version: ["21.x"]
 
     steps:
       - name: Download the Artifacts
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v4
         with:
           path: artifacts
 

README.md

@@ -48,6 +48,35 @@ assets](https://github.com/wasmerio/llvm-custom-builds/releases).
     </tr>
   </thead>
   <tbody>
+  <tr>
+      <td rowspan="6">21</td>
+      <td rowspan="3">amd64</td>
+      <td>Darwin</td>
+      <td><a href="https://github.com/wasmerio/llvm-custom-builds/releases/download/21.x/llvm-darwin-amd64.tar.xz">download</a></td>
+    </tr>
+    <tr>
+      <td>Linux</td>
+      <td><a href="https://github.com/wasmerio/llvm-custom-builds/releases/download/21.x/llvm-linux-amd64.tar.xz">download</a></td>
+    </tr>
+    <tr>
+      <td>Windows</td>
+      <td><a href="https://github.com/wasmerio/llvm-custom-builds/releases/download/21.x/llvm-windows-amd64.tar.xz">download</a></td>
+    </tr>
+    <tr>
+      <td rowspan="2">aarch64</td>
+      <td>Linux</td>
+      <td><a href="https://github.com/wasmerio/llvm-custom-builds/releases/download/21.x/llvm-linux-aarch64.tar.xz">download</a></td>
+    </tr>
+    <tr>
+      <td>Darwin</td>
+      <td><a href="https://github.com/wasmerio/llvm-custom-builds/releases/download/21.x/llvm-darwin-aarch64.tar.xz">download</a></td>
+    </tr>
+      </tr>
+      <td>riscv64</td>
+      <td>Linux</td>
+      <td><a href="https://github.com/wasmerio/llvm-custom-builds/releases/download/21.x/llvm-linux-riscv64.tar.xz">download</a></td>
+      <tr>
+    <tr>
     <tr>
       <td rowspan="6">18</td>
       <td rowspan="3">amd64</td>

build.sh

@@ -63,7 +63,6 @@ cmake \
   -DCMAKE_BUILD_TYPE=MinSizeRel \
   -DCMAKE_INSTALL_PREFIX="/" \
   -DLLVM_ENABLE_PROJECTS="clang;lld" \
-  -DLLVM_ENABLE_TERMINFO=OFF \
   -DLLVM_ENABLE_ZLIB=OFF \
   -DLLVM_INCLUDE_DOCS=OFF \
   -DLLVM_INCLUDE_EXAMPLES=OFF \