First pass Win CI building

Signed-off-by: Rob Suderman <rob.suderman@gmail.com>

Author: rsuderman

.github/workflows/build-and-test-win.yml

@@ -0,0 +1,85 @@
+# Copyright 2026 Advanced Micro Devices, Inc.
+#
+# Licensed under the Apache License v2.0 with LLVM Exceptions.
+# See https://llvm.org/LICENSE.txt for license information.
+# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+
+name: CI - Windows x64 MSVC
+
+on:
+  workflow_dispatch:
+  pull_request:
+  push:
+    branches:
+      - main
+
+jobs:
+  windows_x64_msvc:
+    runs-on: azure-windows-scale
+    env:
+      BASE_BUILD_DIR_POWERSHELL: B:\tmpbuild
+    steps:
+      - name: "Checking out repository"
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+        with:
+          submodules: true
+      # TODO(#18813): Remove this. Environment setup needs to happen on runners, not in workflows.
+      - name: "Create build dir"
+        run: |
+          $buildDir = "$env:BASE_BUILD_DIR_POWERSHELL\"
+          echo "BUILD_DIR_POWERSHELL=$buildDir" >> $env:GITHUB_ENV
+          mkdir "$buildDir"
+          Write-Host "Generated Build Directory: $buildDir"
+          $bashBuildDir = $buildDir -replace '\\', '/' -replace '^B:', '/b'
+          echo  "BUILD_DIR_BASH=$bashBuildDir" >> $env:GITHUB_ENV
+          Write-Host "Converted Build Directory For Bash: $bashBuildDir"
+      - name: "Setting up Python"
+        uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
+        with:
+          python-version: "3.11"
+      - name: "Installing Python packages"
+        run: |
+          python3 -m venv .venv
+          .venv/Scripts/activate.bat
+
+          python3 -m pip install --upgrade pip
+          python3 -m pip install lit filecheck
+          python3 -m pip install --find-links https://iree.dev/pip-release-links.html iree-base-compiler==3.11.0rc20260203
+
+      - name: "Configuring MSVC"
+        uses: ilammy/msvc-dev-cmd@0b201ec74fa43914dc39ae48a89fd1d8cb592756 # v1.13.0
+      - name: "Installing Fusilli requirements"
+        run: |
+          choco install cmake
+          choco install ninja
+          Import-Module $env:ChocolateyInstall\helpers\chocolateyProfile.psm1
+          refreshenv
+      - name: "Building Fusilli"
+        run: |
+          cmake -S . -B ${{ env.BUILD_DIR_POWERSHELL}} -G Ninja -DCMAKE_BUILD_TYPE=Release
+          cmake --build ${{ env.BUILD_DIR_POWERSHELL}} --config Release --target all
+      - name: "Running Fusilli tests"
+        run: |
+          ctest --test-dir ${{ env.BUILD_DIR_POWERSHELL}} --output-on-failure
+      - name: "Clean up build dir"
+        if: always()
+        run: if (Test-Path -Path "$Env:BUILD_DIR_POWERSHELL") {Remove-Item -Path "$Env:BUILD_DIR_POWERSHELL" -Recurse -Force}
+
+  # Depends on all other jobs to provide an aggregate job status.
+  ci_fusilli_summary:
+    if: always()
+    runs-on: ubuntu-24.04
+    needs:
+      - windows_x64_msvc
+    steps:
+      - name: Getting failed jobs
+        run: |
+          echo '${{ toJson(needs) }}'
+          FAILED_JOBS="$(echo '${{ toJson(needs) }}' \
+            | jq --raw-output \
+            'map_values(select(.result!="success" and .result!="skipped")) | keys | join(",")' \
+          )"
+          if [[ "${FAILED_JOBS}" != "" ]]; then
+            echo "The following jobs failed: ${FAILED_JOBS}"
+            exit 1
+          fi