Update code base to use LLVM 21 (#434)

Signed-off-by: Cyrill Leutwiler <[email protected]>
Co-authored-by: LJ <[email protected]>
Co-authored-by: xermicus <[email protected]>

Author: 3 people

.github/actions/get-llvm/action.yml

@@ -51,56 +51,71 @@ runs:
         result-encoding: string
         script: |
           let page = 1;
-          let releases = [];
+          let allReleases = [];
 
           let target = process.env.target
           let versionPrefix = process.env.version_prefix
 
-          do {
+          // Fetch all releases from all pages
+          core.info('Fetching releases from revive repository...');
+          let hasMorePages = true;
+          while (hasMorePages) {
             const res = await github.rest.repos.listReleases({
               owner: context.repo.owner,
               repo: context.repo.repo,
               per_page: 50,
               page,
             });
 
-            releases = res.data
-            releases.sort((a, b) => {
-              return (a.published_at < b.published_at) ? 1 : ((a.published_at > b.published_at) ? -1 : 0);
-            });
-
-            let llvmRelease;
-            if (versionPrefix) {
-              // Search for latest release matching the version prefix
-              llvmRelease = releases.find(release => {
-                return release.tag_name.startsWith(versionPrefix);
-              });
-              if (llvmRelease) {
-                core.info(`Found LLVM release matching prefix '${versionPrefix}': ${llvmRelease.tag_name}`);
-              }
+            if (res.data.length > 0) {
+              core.info(`Page ${page}: Fetched ${res.data.length} releases`);
+              allReleases.push(...res.data);
+              page++;
             } else {
-              // Find latest LLVM release
-              llvmRelease = releases.find(release => {
-                return release.tag_name.startsWith('llvm-');
-              });
-              if (llvmRelease) {
-                core.info(`Found latest LLVM version: ${llvmRelease.tag_name}`);
-              }
+              hasMorePages = false;
             }
+          }
+
+          core.info(`Total releases fetched: ${allReleases.length}`);
 
-            if (llvmRelease){
-                let asset = llvmRelease.assets.find(asset =>{
-                    return asset.name.includes(target);
-                });
-                if (!asset){
-                  core.setFailed(`Artifact for '${target}' not found in release ${llvmRelease.tag_name} (${llvmRelease.html_url})`);
-                  process.exit();
-                }
-                return asset.browser_download_url;
+          // Sort all releases by publication date (newest first)
+          allReleases.sort((a, b) => new Date(b.published_at) - new Date(a.published_at));
+
+          // Debug: Print all LLVM releases
+          const llvmReleases = allReleases.filter(r => r.tag_name.startsWith('llvm-'));
+          core.info(`Found ${llvmReleases.length} LLVM releases in total:`);
+          llvmReleases.forEach(r => {
+            core.info(`  - ${r.tag_name} (published: ${r.published_at})`);
+          });
+
+          // Find the appropriate LLVM release
+          let llvmRelease;
+          if (versionPrefix) {
+            // Search for latest release matching the version prefix
+            llvmRelease = llvmReleases.find(release => {
+              return release.tag_name.startsWith(versionPrefix);
+            });
+            if (llvmRelease) {
+              core.info(`Selected LLVM release matching prefix '${versionPrefix}': ${llvmRelease.tag_name}`);
+            }
+          } else {
+            // Find latest LLVM release (first in sorted list)
+            llvmRelease = llvmReleases[0];
+            if (llvmRelease) {
+              core.info(`Selected latest LLVM version: ${llvmRelease.tag_name}`);
             }
+          }
 
-            page++;
-          } while(releases.length > 0);
+          if (llvmRelease) {
+            let asset = llvmRelease.assets.find(asset => {
+              return asset.name.includes(target);
+            });
+            if (!asset) {
+              core.setFailed(`Artifact for '${target}' not found in release ${llvmRelease.tag_name} (${llvmRelease.html_url})`);
+              process.exit();
+            }
+            return asset.browser_download_url;
+          }
 
           if (versionPrefix) {
             core.setFailed(`No LLVM releases matching prefix '${versionPrefix}' found! Please check the version.`);

.github/workflows/benchmark.yml

@@ -60,7 +60,7 @@ jobs:
 
       - name: Set LLVM Environment Variables
         run: |
-          echo "LLVM_SYS_181_PREFIX=$(pwd)/llvm-x86_64-unknown-linux-gnu" >> $GITHUB_ENV
+          echo "LLVM_SYS_211_PREFIX=$(pwd)/llvm-x86_64-unknown-linux-gnu" >> $GITHUB_ENV
 
       - name: Build resolc
         run: |

.github/workflows/release-llvm.yml

@@ -85,7 +85,7 @@ jobs:
           cat /etc/apt/sources.list
           sudo sed -i 's/jammy/noble/g' /etc/apt/sources.list
           cat /etc/apt/sources.list
-          sudo apt-get update && sudo apt-get install -y cmake ninja-build curl git libssl-dev pkg-config clang lld musl xz-utils libc6-dev gcc-multilib
+          sudo apt-get update && sudo apt-get install -y cmake ninja-build curl git libssl-dev pkg-config clang lld musl xz-utils libc6-dev gcc-multilib g++ build-essential linux-libc-dev
 
       - name: Install Dependencies
         if: ${{ matrix.host == 'macos' }}
@@ -127,7 +127,7 @@ jobs:
       - name: Package Artifact
         shell: bash
         run: |
-          mv target-llvm/${{ matrix.builder-arg }}/target-final/ llvm-${{ matrix.target }}
+          cp -r target-llvm/${{ matrix.builder-arg }}/target-final/ llvm-${{ matrix.target }}
           tar -czf "${{ needs.create-release-draft.outputs.version }}-${{ matrix.target }}.tar.gz" llvm-${{ matrix.target }}
 
       - name: Add Artifact to Release

.github/workflows/reusable-build.yml

@@ -36,7 +36,7 @@ on:
 
 env:
   CARGO_TERM_COLOR: always
-  RUST_MUSL_CROSS_IMAGE: messense/rust-musl-cross@sha256:c0154e992adb791c3b848dd008939d19862549204f8cb26f5ca7a00f629e6067
+  RUST_MUSL_CROSS_IMAGE: messense/rust-musl-cross@sha256:2a8837c43bf12e246f1ebd05191de9ee27fcd22f9ca81511ccd4cf75dc16d71c
 
 jobs:
   build:
@@ -95,7 +95,7 @@ jobs:
         if: ${{ matrix.type == 'native' }}
         shell: bash
         run: |
-          export LLVM_SYS_181_PREFIX=$PWD/llvm-${{ matrix.target }}
+          export LLVM_SYS_211_PREFIX=$PWD/llvm-${{ matrix.target }}
           make install-bin
           mv target/release/resolc resolc-${{ matrix.target }} || mv target/release/resolc.exe resolc-${{ matrix.target }}.exe
 
@@ -106,7 +106,7 @@ jobs:
            cd /opt/revive
            chown -R root:root .
            apt update && apt upgrade -y && apt install -y pkg-config
-           export LLVM_SYS_181_PREFIX=/opt/revive/llvm-${{ matrix.target }}
+           export LLVM_SYS_211_PREFIX=/opt/revive/llvm-${{ matrix.target }}
            make install-bin
            mv target/${{ matrix.target }}/release/resolc resolc-${{ matrix.target }}
            "
@@ -169,7 +169,7 @@ jobs:
 
       - name: Build
         run: |
-          export LLVM_SYS_181_PREFIX=$PWD/llvm-x86_64-unknown-linux-gnu
+          export LLVM_SYS_211_PREFIX=$PWD/llvm-x86_64-unknown-linux-gnu
           export REVIVE_LLVM_TARGET_PREFIX=$PWD/llvm-wasm32-unknown-emscripten
           source emsdk/emsdk_env.sh
           make install-wasm

.github/workflows/test-llvm-builder.yml

@@ -33,7 +33,7 @@ jobs:
       - name: Install Dependencies
         if: matrix.runner == 'parity-large'
         run: |
-          sudo apt update && sudo apt-get install -y cmake ninja-build curl git libssl-dev pkg-config clang lld musl
+          sudo apt update && sudo apt-get install -y cmake ninja-build curl git libssl-dev pkg-config clang lld musl xz-utils build-essential
 
       - name: Install Dependencies
         if: matrix.runner == 'macos-15'

.github/workflows/test-wasm.yml

@@ -50,7 +50,7 @@ jobs:
 
       - name: Set LLVM Environment Variables
         run: |
-          echo "LLVM_SYS_181_PREFIX=$(pwd)/llvm-x86_64-unknown-linux-gnu" >> $GITHUB_ENV
+          echo "LLVM_SYS_211_PREFIX=$(pwd)/llvm-x86_64-unknown-linux-gnu" >> $GITHUB_ENV
           echo "REVIVE_LLVM_TARGET_PREFIX=$(pwd)/llvm-wasm32-unknown-emscripten" >> $GITHUB_ENV
 
       - name: Build Revive

.github/workflows/test.yml

@@ -38,7 +38,7 @@ jobs:
 
       - name: Set LLVM Environment Variables
         run: |
-          echo "LLVM_SYS_181_PREFIX=$(pwd)/llvm-x86_64-unknown-linux-gnu" >> $GITHUB_ENV
+          echo "LLVM_SYS_211_PREFIX=$(pwd)/llvm-x86_64-unknown-linux-gnu" >> $GITHUB_ENV
 
       - name: Install Geth
         run: |

.gitmodules

@@ -1,7 +1,7 @@
 [submodule "llvm"]
 	path = llvm
 	url = https://github.com/llvm/llvm-project.git
-	branch = release/18.x
+	branch = release/21.x
 [submodule "revive-differential-tests"]
 	path = revive-differential-tests
-	url = https://github.com/paritytech/revive-differential-tests.git
+	url = https://github.com/paritytech/revive-differential-tests.git

CHANGELOG.md

@@ -8,6 +8,13 @@ This is a development pre-release.
 
 - npm package: The `--bin` CLI flag was not producing bytecode because the `outputSelection` was not updated to explicitly requested it.
 
+### Changed
+
+- Updated `LLVM` from `18.1.8` to LLVM `21.1.8`
+- Updated `musl` to `1.2.5`
+- Updated `inkwell` to `0.8.0`
+- Updated `polkavm-*` to `0.31.0`
+
 ## v1.0.0
 
 Supported `polkadot-sdk` rev: `unstable2507`

CLAUDE.md

@@ -14,7 +14,7 @@ Revive is a Solidity compiler targeting RISC-V on PolkaVM. It uses `solc` (Ether
 
 ## Build Commands
 
-**Prerequisites:** Requires `LLVM_SYS_181_PREFIX` environment variable pointing to a compatible LLVM 18.1.8 build. Download from releases or build with `make install-llvm`.
+**Prerequisites:** Requires `LLVM_SYS_211_PREFIX` environment variable pointing to a compatible LLVM 18.1.8 build. Download from releases or build with `make install-llvm`.
 
 ```bash
 # Install resolc binary