Metal Toolchain is missing on xcode-27

[WinterLulu14]

Description

Try to compile metal on xcode-27 fail

Platforms affected

• Azure DevOps
• GitHub Actions - Standard Runners
• GitHub Actions - Larger Runners

Runner images affected

• Ubuntu 22.04
• Ubuntu 22.04 Arm64
• Ubuntu 24.04
• Ubuntu 24.04 Arm64
• Ubuntu 26.04
• Ubuntu 26.04 Arm64
• Ubuntu Slim
• macOS 14
• macOS 14 Arm64
• macOS 15
• macOS 15 Arm64
• macOS 26
• macOS 26 Arm64
• Windows Server 2022
• Windows Server 2025
• Windows Server 2025 with Visual Studio 2026
• Windows Desktop 11
• Windows Desktop 11 with Visual Studio 2026

Image version and build link

Version: 20260810.0090.1
The failed build

Is it regression?

It not a regression

Expected behavior

Try to compile metal work on macos-26

Actual behavior

Try to compile metal on xcode-27 fail

Repro steps

Copy paste this workflow on actions and click run workflow

name: Compile with Metal Toolchain

on:
  push:
    branches: [ "main" ]
  pull_request:
    branches: [ "main" ]
  workflow_dispatch:

jobs:
  build-shaders:
    runs-on: xcode-27

    steps:
      - name: Checkout repository
        uses: actions/checkout@v4

      - name: Create Temporary Test Shader
        run: |
          # Create the src directory and generate a valid dummy shader code
          mkdir -p src
          cat << 'EOF' > src/Shaders.metal
          #include <metal_stdlib>
          using namespace metal;
          kernel void test_shader(device float *out [[buffer(0)]], uint id [[thread_position_in_grid]]) {
              out[id] = 1.0f;
          }
          EOF
      - name: Compile Metal Shaders
        run: |
          mkdir -p build
          xcrun -sdk macosx metal -O3 src/Shaders.metal -o build/default.metallib
      - name: Upload Shaders Artifact
        uses: actions/upload-artifact@v4
        with:
          name: metal-library
          path: build/default.metallib