ci: Unify test-*.yml

Also rename `build-artifact` to use `matrix.os` for compatibility with testing across OS.

.github/workflows/test-build.yml

@@ -1,4 +1,4 @@
-name: Build and run tests (Linux)
+name: Build and run tests
 
 on:
   pull_request:
@@ -23,10 +23,10 @@ jobs:
           # only run on push *or* pull_request, not both
           concurrent_skipping: 'same_content_newer'
 
-  build-linux:
+  build-yosys:
     needs: pre_job
     if: needs.pre_job.outputs.should_skip != 'true'
-    runs-on: ${{ matrix.os.id }}
+    runs-on: ${{ matrix.os }}
     env:
       CC: ${{ matrix.compiler }}
       CXX: ${{ matrix.compiler }}
@@ -34,9 +34,9 @@ jobs:
     strategy:
       matrix:
         os:
-          - { id: ubuntu-20.04, name: focal }
+          - ubuntu-20.04
+          - macos-13
         compiler:
-          - 'clang'
           - 'clang-12'
           - 'gcc-11'
         cpp_std:
@@ -45,21 +45,34 @@ jobs:
           - 'c++17'
           - 'c++20'
         include:
-          # Limit the older compilers to C++11 mode
-          - os: { id: ubuntu-20.04, name: focal }
+          # Build for testing
+          - os: ubuntu-20.04
+            compiler: 'clang'
+            cpp_std: 'c++11'
+          # Limited testing for older compilers
+          - os: ubuntu-20.04
             compiler: 'clang-11'
             cpp_std: 'c++11'
-          - os: { id: ubuntu-20.04, name: focal }
+          - os: ubuntu-20.04
             compiler: 'gcc-10'
             cpp_std: 'c++11'
+          # Add os_name
+          - os: ubuntu-20.04
+            os_name: focal
       fail-fast: false
     steps:
-      - name: Install Dependencies
+      - name: Install Linux Dependencies
+        if: runner.os == 'Linux'
         shell: bash
         run: |
           sudo apt-get update
           sudo apt-get install gperf build-essential bison flex libreadline-dev gawk tcl-dev libffi-dev git graphviz xdot pkg-config python python3 libboost-system-dev libboost-python-dev libboost-filesystem-dev zlib1g-dev
 
+      - name: Install macOS Dependencies
+        if: runner.os == 'macOS'
+        run: |
+          brew install bison flex gawk libffi pkg-config bash
+
       - name: Setup GCC
         if: startsWith(matrix.compiler, 'gcc')
         shell: bash
@@ -78,18 +91,28 @@ jobs:
           wget https://apt.llvm.org/llvm-snapshot.gpg.key
           sudo apt-key add llvm-snapshot.gpg.key
           rm llvm-snapshot.gpg.key
-          sudo apt-add-repository "deb https://apt.llvm.org/${{ matrix.os.name }}/ llvm-toolchain-${{ matrix.os.name }} main"
+          sudo apt-add-repository "deb https://apt.llvm.org/${{ matrix.os_name }}/ llvm-toolchain-${{ matrix.os_name }} main"
           sudo apt-get update
           CXX=${CC/#clang/clang++}
           sudo apt-get install $CC $CXX
           echo "CXX=$CXX" >> $GITHUB_ENV
 
-      - name: Runtime environment
+      - name: Linux runtime environment
+        if: runner.os == 'Linux'
         shell: bash
         run: |
           echo "${{ github.workspace }}/.local/bin" >> $GITHUB_PATH
           echo "procs=$(nproc)" >> $GITHUB_ENV
 
+      - name: macOS runtime environment
+        if: runner.os == 'macOS'
+        shell: bash
+        run: |
+          echo "${{ github.workspace }}/.local/bin" >> $GITHUB_PATH
+          echo "$(brew --prefix bison)/bin" >> $GITHUB_PATH
+          echo "$(brew --prefix flex)/bin" >> $GITHUB_PATH
+          echo "procs=$(sysctl -n hw.ncpu)" >> $GITHUB_ENV
+
       - name: Tool versions
         shell: bash
         run: |
@@ -123,13 +146,13 @@ jobs:
         if: (matrix.cpp_std == 'c++11') && (matrix.compiler == 'clang')
         uses: actions/upload-artifact@v4
         with:
-          name: build-artifact
+          name: build-${{ matrix.os }}
           path: build.tar
           retention-days: 1
 
-  test-linux:
+  test-yosys:
     name: Run tests
-    needs: build-linux
+    needs: build-yosys
     runs-on: ${{ matrix.os }}
     env:
       CC: clang
@@ -181,7 +204,7 @@ jobs:
       - name: Download build artifact
         uses: actions/download-artifact@v4
         with:
-          name: build-artifact
+          name: build-${{ matrix.os }}
 
       - name: Uncompress build
         shell: bash

.github/workflows/test-macos.yml

@@ -1,97 +0,0 @@
-name: Build and run tests (macOS)
-
-on:
-  pull_request:
-    branches:
-    - master
-  push:
-    branches:
-    - master
-
-jobs:
-  pre_job:
-    runs-on: ubuntu-latest
-    outputs:
-      should_skip: ${{ steps.skip_check.outputs.should_skip }}
-    steps:
-      - id: skip_check
-        uses: fkirc/skip-duplicate-actions@v5
-        with:
-          paths_ignore: '["**/README.md", "docs/**", "guidelines/**"]'
-          # cancel previous builds if a new commit is pushed
-          cancel_others: 'true'
-          # only run on push *or* pull_request, not both
-          concurrent_skipping: 'same_content_newer'
-
-  test-macos:
-    needs: pre_job
-    if: needs.pre_job.outputs.should_skip != 'true'
-    runs-on: ${{ matrix.os.id }}
-    strategy:
-      matrix:
-        os:
-          - { id: macos-13, name: 'Ventura' }
-        cpp_std:
-          - 'c++11'
-      fail-fast: false
-    steps:
-      - name: Install Dependencies
-        run: |
-          HOMEBREW_NO_INSTALLED_DEPENDENTS_CHECK=1 brew install bison flex gawk libffi pkg-config bash
-
-      - name: Runtime environment
-        shell: bash
-        env:
-          WORKSPACE: ${{ github.workspace }}
-        run: |
-          echo "GITHUB_WORKSPACE=`pwd`" >> $GITHUB_ENV
-          echo "$GITHUB_WORKSPACE/.local/bin" >> $GITHUB_PATH
-          echo "$(brew --prefix bison)/bin" >> $GITHUB_PATH
-          echo "$(brew --prefix flex)/bin" >> $GITHUB_PATH
-          echo "procs=$(sysctl -n hw.ncpu)" >> $GITHUB_ENV
-
-      - name: Tool versions
-        shell: bash
-        run: |
-          cc --version
-
-      - name: Checkout Yosys
-        uses: actions/checkout@v4
-        with:
-         submodules: true
-      - name: Get iverilog
-        shell: bash
-        run: |
-          git clone https://github.com/steveicarus/iverilog.git
-          cd iverilog
-          echo "IVERILOG_GIT=$(git rev-parse HEAD)" >> $GITHUB_ENV
-
-      - name: Cache iverilog
-        id: cache-iverilog
-        uses: actions/cache@v4
-        with:
-          path: .local/
-          key: ${{ matrix.os.id }}-${{ env.IVERILOG_GIT }}
-
-      - name: Build iverilog
-        if: steps.cache-iverilog.outputs.cache-hit != 'true'
-        shell: bash
-        run: |
-          mkdir -p $GITHUB_WORKSPACE/.local/
-          cd iverilog
-          autoconf
-          CC=gcc CXX=g++ ./configure --prefix=$GITHUB_WORKSPACE/.local/
-          make -j${{ env.procs }}
-          make install
-
-      - name: Build yosys
-        shell: bash
-        run: |
-          make config-clang
-          make -j${{ env.procs }} CXXSTD=${{ matrix.cpp_std }} CC=cc CXX=cc LD=cc
-
-      - name: Run tests
-        if: matrix.cpp_std == 'c++11'
-        shell: bash
-        run: |
-          make -j${{ env.procs }} test CXXSTD=${{ matrix.cpp_std }} CC=cc CXX=cc LD=cc