stim: Add version 1.16.0

.github/workflows/build-stim.yml

@@ -0,0 +1,108 @@
+# SPDX-FileCopyrightText: 2026 The RISE Project
+# SPDX-License-Identifier: MIT
+---
+name: Build stim wheels (riscv64)
+
+on:
+  workflow_dispatch:
+    inputs:
+      version:
+        description: 'Version glob to (re)build; empty builds every version of docs/packages/stim.yaml not released yet'
+        required: false
+        default: ''
+  pull_request:
+    branches: [main]
+    paths:
+      - '.github/workflows/build-stim.yml'
+      - 'docs/packages/stim.yaml'
+      - 'patches/stim/**'
+  push:
+    branches: [main]
+    paths:
+      - '.github/workflows/build-stim.yml'
+      - 'docs/packages/stim.yaml'
+      - 'patches/stim/**'
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
+  cancel-in-progress: true
+
+permissions:
+  contents: read  # to fetch code (actions/checkout)
+
+env:
+  MANYLINUX_RISCV64_IMAGE: quay.io/pypa/manylinux_2_39_riscv64
+
+jobs:
+  setup:
+    uses: $/.github/workflows/_setup.yml
+    with:
+      package: stim
+      version: ${{ inputs.version }}
+
+  build_wheels:
+    needs: [setup]
+    if: needs.setup.outputs.versions != '[]'
+    name: Build stim ${{ matrix.version }} ${{ matrix.python }}-manylinux_riscv64
+    runs-on: ubuntu-24.04-riscv
+    timeout-minutes: 360
+    strategy:
+      fail-fast: false
+      matrix:
+        version: ${{ fromJSON(needs.setup.outputs.versions) }}
+        python: [cp312, cp313, cp314]
+
+    env:
+      STIM_VERSION: ${{ matrix.version }}
+
+    steps:
+      - name: Checkout stim ${{ env.STIM_VERSION }}
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1  # v7.0.1
+        with:
+          repository: quantumlib/stim
+          ref: v${{ env.STIM_VERSION }}
+          persist-credentials: false
+
+      - name: Checkout python-wheels
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1  # v7.0.1
+        with:
+          path: python-wheels
+          persist-credentials: false
+
+      - name: Patch stim source
+        run: git apply python-wheels/patches/stim/${{ env.STIM_VERSION }}/*.patch
+
+      - uses: pypa/cibuildwheel@1828c10ab37f080699c7b81cea34097c684a7074  # v4.2.0
+        with:
+          output-dir: wheelhouse/
+          only: ${{ matrix.python }}-manylinux_riscv64
+        env:
+          CIBW_MANYLINUX_RISCV64_IMAGE: ${{ env.MANYLINUX_RISCV64_IMAGE }}
+          CIBW_ENVIRONMENT: >-
+            PIP_EXTRA_INDEX_URL=https://pypi.riseproject.dev/simple/
+            PIP_ONLY_BINARY=:all:
+          CIBW_TEST_REQUIRES: cirq-core pytest
+          CIBW_TEST_COMMAND: pytest {project}/src {project}/glue/cirq && stim help
+
+      - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a  # v7.0.1
+        with:
+          name: stim-${{ env.STIM_VERSION }}-${{ matrix.python }}-manylinux_riscv64
+          path: wheelhouse/*.whl
+          if-no-files-found: error
+
+  publish:
+    name: Publish stim ${{ matrix.version }}
+    needs: [setup, build_wheels]
+    if: needs.setup.outputs.versions != '[]'
+    strategy:
+      fail-fast: false
+      matrix:
+        version: ${{ fromJSON(needs.setup.outputs.versions) }}
+    permissions:
+      contents: write
+      pull-requests: write
+    uses: $/.github/workflows/_publish-wheel.yml
+    secrets:
+      app-private-key: ${{ secrets.RISEPROJECT_APP_PRIVATE_KEY }}
+    with:
+      artifact-pattern: stim-${{ matrix.version }}-*-manylinux_riscv64

docs/packages/stim.yaml

@@ -0,0 +1,6 @@
+package-name: stim
+source-code: https://github.com/quantumlib/stim
+license: Apache-2.0
+versions:
+- version: 1.16.0
+  patched: true

patches/stim/1.16.0/0001-march-dummy-cpuid-on-riscv.patch

@@ -0,0 +1,23 @@
+Upstream-Status: To upstream [not yet submitted; this port may only touch riseproject-dev/python-wheels]
+
+The _detect_machine_architecture extension (march.pybind.cc) only dummies out
+cpuid() for macOS arm64, aarch64 and PowerPC; every other non-Windows target
+falls into the GCC branch, which includes the x86-only <cpuid.h> and calls
+__cpuid_count. On riscv64 that header does not exist, so the extension (and
+therefore the whole stim wheel) fails to compile. Add __riscv to the dummied-out
+list: detect_march() then returns "polyfill" and stim/__init__.py imports the
+portable _stim_polyfill module, exactly as it already does on arm64. setup.py
+only builds _stim_polyfill (not _stim_sse2) on non-x86, so nothing else changes.
+--- a/src/stim/py/march.pybind.cc
++++ b/src/stim/py/march.pybind.cc
+@@ -6,8 +6,8 @@
+ //  Windows
+ #include <intrin.h>
+ #define cpuid(info, x) __cpuidex(info, x, 0)
+-#elif (defined(__arm64__) && defined(__APPLE__)) || defined(__aarch64__) || defined(_ARCH_PPC)
+-// macOS ARM64 and IBM PowerPC (dummied out)
++#elif (defined(__arm64__) && defined(__APPLE__)) || defined(__aarch64__) || defined(_ARCH_PPC) || defined(__riscv)
++// macOS ARM64, IBM PowerPC and RISC-V (dummied out)
+ void cpuid(int info[4], int infoType) {
+     info[0] = 0;
+     info[1] = 0;