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Import torch only when the Python runtime needs it, warn before outputs follow inputs, and upload bfloat16 without torch #11949
Workflow file for this run
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| name: Test Cortex-M Backend | |
| on: | |
| schedule: | |
| - cron: 0 2 * * * | |
| push: | |
| branches: | |
| - main | |
| - release/* | |
| tags: | |
| - ciflow/nightly/* | |
| pull_request: | |
| workflow_dispatch: | |
| concurrency: | |
| group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref_name }}-${{ github.ref_type == 'branch' && github.sha }}-${{ github.event_name == 'workflow_dispatch' }}-${{ github.event_name == 'schedule' }} | |
| cancel-in-progress: true | |
| jobs: | |
| # Emits PR diff file list; non-PR events emit '*' so the per-job | |
| # `if:` short-circuits via `event_name != 'pull_request'`. | |
| changed-files: | |
| name: Get changed files | |
| uses: ./.github/workflows/_get-changed-files.yml | |
| test-cortex-m: | |
| needs: changed-files | |
| # Every case in this flow serializes a .pte and runs it on the Corstone-300 | |
| # FVP, on top of an Arm toolchain install and a runner build. The Arm | |
| # workflow keeps that off unrelated PRs by running only its TOSA and VGF | |
| # flows there; Cortex-M has no non-FVP flow to fall back to, so it is | |
| # path-gated instead and still runs in full on the nightly schedule. | |
| # | |
| # backends/arm is gated whole rather than by subdirectory. The flow borrows | |
| # Arm's test harness, and importing it pulls in around 350 arm modules -- | |
| # the passes, the TOSA operators, the quantizer -- so a break almost | |
| # anywhere in that tree reaches this job. It costs little to be broad: | |
| # over the last 300 commits, 66 touched backends/arm and 61 of those | |
| # touched backends/arm/test or backends/arm/scripts anyway. | |
| if: | | |
| github.event_name != 'pull_request' || | |
| contains(needs.changed-files.outputs.changed-files, 'backends/cortex_m') || | |
| contains(needs.changed-files.outputs.changed-files, 'backends/arm') || | |
| contains(needs.changed-files.outputs.changed-files, 'examples/arm') || | |
| contains(needs.changed-files.outputs.changed-files, 'backends/test/suite') || | |
| contains(needs.changed-files.outputs.changed-files, 'backends/test/harness') || | |
| contains(needs.changed-files.outputs.changed-files, '.ci/scripts/test_backend.sh') || | |
| contains(needs.changed-files.outputs.changed-files, '.ci/scripts/setup-arm-baremetal-tools.sh') || | |
| contains(needs.changed-files.outputs.changed-files, '.github/workflows/test-backend-cortex-m.yml') || | |
| contains(needs.changed-files.outputs.changed-files, '.github/workflows/_test_backend.yml') | |
| uses: ./.github/workflows/_test_backend.yml | |
| permissions: | |
| id-token: write | |
| contents: read | |
| with: | |
| backend: cortex_m | |
| flows: '["cortex_m"]' | |
| # The operator suite is a scoreboard for how much of the operator set the | |
| # backend lowers, not a gate: most of its cases reach an operator cortex_m | |
| # does not implement and abort on a kernel the runner does not carry. It | |
| # earns a scheduled run, not a place on every PR and every merge to main. | |
| # Growing ops_list to make those cases run is not the fix -- a case that | |
| # only passes on a portable fallback says nothing about coverage. | |
| exclude: >- | |
| ${{ (github.event_name == 'schedule' | |
| || github.event_name == 'workflow_dispatch') | |
| && '[]' | |
| || '[{"flow": "cortex_m", "suite": "operators"}]' }} | |
| ref: ${{ github.event_name == 'pull_request' && github.event.pull_request.head.sha || github.sha }} | |
| timeout: 120 | |
| run-linux: true | |
| docker-image: ci-image:executorch-ubuntu-22.04-arm-sdk |