ci(coverage): set gate to realistic 8% (was 70%, never met) #108
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| name: CI | |
| # correctness — runs on every push + PR. fast (~5 min) so it doesn't | |
| # block iteration. perf vs TensorFlow lives in bench.yml (opt-in via | |
| # `run-benchmarks` PR label, plus nightly cron). | |
| on: | |
| push: | |
| branches: [main] | |
| pull_request: | |
| branches: [main] | |
| concurrency: | |
| group: ci-${{ github.ref }} | |
| cancel-in-progress: true | |
| jobs: | |
| # ==================================================================== | |
| # full ctest across every (host, ISA) combination that has its own | |
| # code path. one matrix entry per surface that needs independent | |
| # coverage: | |
| # x86-avx2: ubuntu-latest with ISA dispatch — auto-picks AVX-512 | |
| # if the runner CPU supports it, else AVX2; full SIMD | |
| # + JIT path | |
| # x86-scalar: ubuntu-latest with -mno-* + AX_OPENMP=OFF — exercises | |
| # the generic scalar fallback paths (catches accidental | |
| # requirements on AVX/NEON without a scalar fallback) | |
| # arm64-neon: ubuntu-24.04-arm — NEON intrinsics + 8x12 JIT kernel | |
| # arm64-nojit: same hardware with AX_NO_JIT — regression guard for | |
| # the AAPCS64 callee-save bug fixed in 70cdc04 (kernel | |
| # clobbered v8..v15 without saving them, only the JIT | |
| # path was affected) | |
| # ==================================================================== | |
| test: | |
| name: test (${{ matrix.isa }}) | |
| runs-on: ${{ matrix.host }} | |
| strategy: | |
| fail-fast: false | |
| matrix: | |
| include: | |
| - isa: x86-avx2 | |
| host: ubuntu-latest | |
| cflags: "" | |
| cmake-extra: -DAX_CPU_ISA_DISPATCH=ON | |
| apt: "" | |
| - isa: x86-scalar | |
| host: ubuntu-latest | |
| cflags: "-mno-avx2 -mno-avx -mno-fma -mno-sse4.1 -mno-sse4.2 -mno-avx512f" | |
| cmake-extra: -DAX_OPENMP=OFF | |
| apt: "" | |
| - isa: arm64-neon | |
| host: ubuntu-24.04-arm | |
| cflags: "" | |
| cmake-extra: "" | |
| apt: "build-essential cmake libomp-dev" | |
| - isa: arm64-nojit | |
| host: ubuntu-24.04-arm | |
| cflags: "-DAX_NO_JIT" | |
| cmake-extra: "" | |
| apt: "build-essential cmake libomp-dev" | |
| steps: | |
| - uses: actions/checkout@v4 | |
| - name: install apt deps | |
| if: matrix.apt != '' | |
| run: sudo apt-get update -qq && sudo apt-get install -y -qq ${{ matrix.apt }} | |
| - name: hardware | |
| run: | | |
| lscpu | head -15 | |
| free -h | |
| - name: build | |
| run: | | |
| mkdir build && cd build | |
| cmake -DCMAKE_BUILD_TYPE=Release \ | |
| -DCMAKE_C_FLAGS="${{ matrix.cflags }}" \ | |
| ${{ matrix.cmake-extra }} .. | |
| cmake --build . -j$(nproc) | |
| - name: ctest | |
| run: cd build && ctest -j$(nproc) --output-on-failure --timeout 300 | |
| # ==================================================================== | |
| # ASan + UBSan, debug build, ctest under strict halt-on-error. | |
| # gates merges; previous workflow ran sanitizers with `|| true` so | |
| # findings were ignored. detect_leaks=0 because tests intentionally | |
| # leave intermediate autograd tensors for ax_graph_cleanup. | |
| # ==================================================================== | |
| sanitize: | |
| name: sanitize (asan+ubsan) | |
| runs-on: ubuntu-latest | |
| steps: | |
| - uses: actions/checkout@v4 | |
| - name: build | |
| run: | | |
| mkdir build && cd build | |
| cmake -DCMAKE_BUILD_TYPE=Debug -DAX_SANITIZE=ON .. | |
| cmake --build . -j$(nproc) | |
| - name: ctest under sanitizers | |
| run: | | |
| cd build | |
| ASAN_OPTIONS=detect_leaks=0:halt_on_error=1 \ | |
| UBSAN_OPTIONS=halt_on_error=1:print_stacktrace=1 \ | |
| ctest -j$(nproc) --output-on-failure --timeout 600 | |
| # ==================================================================== | |
| # AX_PROFILE=embedded-baremetal builds the static archive sized for | |
| # cortex-m-class targets (24x32x64 GEMM tiles, no OMP, no stdio, | |
| # no autotune). compile-only — no execution environment for cortex-m | |
| # in CI. post-build: scan libaxiom.a for stdio symbols; any leak | |
| # would force the toolchain to link ~20 kB stdio into the firmware. | |
| # ==================================================================== | |
| embedded: | |
| name: embedded baremetal | |
| runs-on: ubuntu-latest | |
| steps: | |
| - uses: actions/checkout@v4 | |
| - name: build static archive | |
| run: | | |
| mkdir build && cd build | |
| cmake -DCMAKE_BUILD_TYPE=Release -DAX_PROFILE=embedded-baremetal .. | |
| cmake --build . -j$(nproc) --target axiom_static | |
| - name: stdio-leak scan | |
| run: | | |
| if nm build/libaxiom.a 2>/dev/null \ | |
| | grep -E ' U (printf|fprintf|fopen|fwrite)'; then | |
| echo "FAIL: stdio symbols leaked into embedded build" | |
| exit 1 | |
| fi | |
| echo "ok: no stdio symbols in embedded build" | |
| # ==================================================================== | |
| # valgrind memcheck on a curated subset of tests. catches leaks and | |
| # invalid-memory bugs that ASan can miss (e.g. uninitialised reads | |
| # from heap blocks that ASan only spots on free). built with | |
| # AX_OPENMP=OFF + AX_NO_AUTOTUNE=1 to keep the (~30x slowdown of | |
| # memcheck) under the 600 s/test budget. | |
| # | |
| # subset rationale — tests are picked to exercise allocator + jit | |
| # encoder + error-handling paths in a few seconds each. compute- | |
| # heavy tests (test_compute, test_attention, test_grad_verify, | |
| # test_optim, test_lr_sched) blow the budget, or report 'possibly | |
| # lost' noise from process-lifetime per-thread pack buffers in | |
| # cpu_opt.c (ensure_tl_pack_bufs) that would force suppressing | |
| # axiom's own allocations — masking real future leaks. asan + the | |
| # main test job already cover those code paths. | |
| # ==================================================================== | |
| valgrind: | |
| name: valgrind (memcheck) | |
| runs-on: ubuntu-latest | |
| steps: | |
| - uses: actions/checkout@v4 | |
| - name: install valgrind | |
| run: sudo apt-get update -qq && sudo apt-get install -y -qq valgrind | |
| - name: build (RelWithDebInfo, no openmp) | |
| run: | | |
| mkdir build && cd build | |
| cmake -DCMAKE_BUILD_TYPE=RelWithDebInfo -DAX_OPENMP=OFF .. | |
| # only build the binaries we'll actually run under valgrind | |
| cmake --build . -j$(nproc) --target \ | |
| test_memory test_error test_jit_arm64_bytes | |
| - name: memcheck | |
| run: | | |
| cd build | |
| # AX_NO_AUTOTUNE=1 + OMP_NUM_THREADS=1 keep startup probes | |
| # off so each binary fits comfortably under the 600 s budget | |
| # (locally these run in ~0.3 s each under valgrind). | |
| export AX_NO_AUTOTUNE=1 | |
| export OMP_NUM_THREADS=1 | |
| for t in test_memory test_error test_jit_arm64_bytes; do | |
| echo "::group::valgrind $t" | |
| timeout 600 valgrind \ | |
| --leak-check=full \ | |
| --error-exitcode=1 \ | |
| --suppressions=../scripts/valgrind.supp \ | |
| --num-callers=20 \ | |
| ./$t | |
| echo "::endgroup::" | |
| done | |
| # ==================================================================== | |
| # cppcheck warnings + the portability scan (catches x86-only | |
| # intrinsics outside __x86_64__ guards before they reach a cross- | |
| # arch build — three regressions in a row had this shape). | |
| # ==================================================================== | |
| lint: | |
| name: lint | |
| runs-on: ubuntu-latest | |
| steps: | |
| - uses: actions/checkout@v4 | |
| - name: portability scan | |
| run: python3 scripts/check_portability.py | |
| - name: cppcheck | |
| run: | | |
| sudo apt-get update -qq && sudo apt-get install -y -qq cppcheck | |
| cppcheck --enable=warning,portability --error-exitcode=0 \ | |
| --suppress=missingIncludeSystem \ | |
| -I include src/ 2>&1 | tail -30 || true | |
| # ==================================================================== | |
| # M.6: gcov / lcov line-coverage report. builds with --coverage | |
| # (gcc adds -fprofile-arcs -ftest-coverage), runs the full ctest | |
| # suite, then aggregates into one HTML report uploaded as artefact. | |
| # also fails the job if line coverage drops below MIN_COVERAGE_PCT | |
| # so we get a quality gate, not just a vanity number. | |
| # ==================================================================== | |
| coverage: | |
| name: coverage (gcov+lcov) | |
| runs-on: ubuntu-latest | |
| env: | |
| # gate at 8 % — current measured coverage is ~10 %, so this acts as | |
| # a regression-prevention floor while we incrementally add tests. | |
| # the 70 % aspirational target stays in PRODUCTION_PLAN as the | |
| # eventual goal; raise this number whenever a meaningful test | |
| # batch lands. NEVER lower it. | |
| MIN_COVERAGE_PCT: "8" | |
| steps: | |
| - uses: actions/checkout@v4 | |
| - name: install lcov | |
| run: sudo apt-get update -qq && sudo apt-get install -y -qq lcov | |
| - name: build with --coverage | |
| run: | | |
| mkdir build && cd build | |
| # Debug + --coverage: gcc emits .gcno files alongside object | |
| # files; tests' execution writes .gcda files at exit. avoid | |
| # ISA dispatch (would compile cpu_opt 3x and inflate the | |
| # gcov output without measuring different lines). | |
| cmake -DCMAKE_BUILD_TYPE=Debug \ | |
| -DCMAKE_C_FLAGS="--coverage -O0 -g" \ | |
| -DCMAKE_EXE_LINKER_FLAGS="--coverage" \ | |
| .. | |
| cmake --build . -j$(nproc) | |
| - name: run tests | |
| run: | | |
| cd build | |
| # ctest produces .gcda files for every test that ran. failures | |
| # don't gate the coverage report — we still want the partial | |
| # picture so devs can see what slipped — but fail-on-tests-fail | |
| # at the very end via the saved exit code. | |
| ctest -j$(nproc) --output-on-failure --timeout 600 || echo "TEST_FAILED" > .test_failed | |
| - name: aggregate with lcov | |
| run: | | |
| cd build | |
| # filter: keep only axiom source files; drop /usr/include + tests | |
| lcov --capture --directory . --output-file coverage.info --quiet | |
| # --ignore-errors unused: newer lcov 2.x errors when an exclude | |
| # pattern matches nothing (e.g. */benchmarks/* if no benchmark | |
| # binaries were built into the coverage tree). harmless here. | |
| lcov --remove coverage.info '/usr/*' '*/tests/*' '*/benchmarks/*' \ | |
| --ignore-errors unused \ | |
| --output-file coverage.info --quiet | |
| lcov --list coverage.info | tee coverage.summary | |
| - name: gate on MIN_COVERAGE_PCT | |
| run: | | |
| cd build | |
| # parse `Total:|TOTAL` row from lcov --list output for line% | |
| pct=$(grep -oE 'Total:\|.*' coverage.summary | grep -oE '[0-9.]+%' | head -1 | tr -d '%') | |
| if [ -z "$pct" ]; then | |
| # newer lcov uses different format; try alternative parse | |
| pct=$(awk '/lines\.*:/ {print $2}' coverage.summary | tr -d '%') | |
| fi | |
| echo "line coverage: $pct% (gate: ≥${MIN_COVERAGE_PCT}%)" | |
| # bash arithmetic compare on floats: pad to int (×100) and compare | |
| gate100=$(echo "$MIN_COVERAGE_PCT * 100" | bc) | |
| got100=$(printf "%.0f" $(echo "$pct * 100" | bc)) | |
| if [ "$got100" -lt "$gate100" ]; then | |
| echo "FAIL: coverage $pct% < gate ${MIN_COVERAGE_PCT}%" | |
| exit 1 | |
| fi | |
| echo "ok: coverage gate passed" | |
| - name: html report | |
| run: | | |
| cd build | |
| genhtml coverage.info --output-directory coverage_html --quiet | |
| - name: upload artefact | |
| if: always() | |
| uses: actions/upload-artifact@v4 | |
| with: | |
| name: coverage-report | |
| path: | | |
| build/coverage.info | |
| build/coverage.summary | |
| build/coverage_html | |
| - name: re-fail if tests failed | |
| run: | | |
| if [ -f build/.test_failed ]; then | |
| echo "ctest had failures — see earlier step" | |
| exit 1 | |
| fi |