Use official Apt respositories for LLVM CI #4197

	name: LLVM CI

	on: [push, pull_request]

	concurrency:
	group: ${{ github.workflow }}-${{ github.ref }}
	cancel-in-progress: ${{ github.ref != 'refs/heads/master' }}

	env:
	SPEC_SPLIT_DOTS: 160

	jobs:
	llvm_test:
	runs-on: ${{ matrix.runs-on }}
	strategy:
	fail-fast: false
	matrix:
	include:
	- llvm_version: 13
	runs-on: ubuntu-22.04
	- llvm_version: 14
	runs-on: ubuntu-22.04
	- llvm_version: 15
	runs-on: ubuntu-22.04
	- llvm_version: 16
	runs-on: ubuntu-22.04
	- llvm_version: 17
	runs-on: ubuntu-24.04
	- llvm_version: 18
	runs-on: ubuntu-24.04
	- llvm_version: 19
	runs-on: ubuntu-24.04
	name: "LLVM ${{ matrix.llvm_version }}"
	steps:
	- name: Checkout Crystal source
	uses: actions/checkout@v4

	- name: Install LLVM ${{ matrix.llvm_version }}
	run: \|
	wget https://apt.llvm.org/llvm.sh
	chmod +x llvm.sh
	sudo ./llvm.sh ${{ matrix.llvm_version }}

	- name: Install Crystal
	uses: crystal-lang/install-crystal@v1
	with:
	crystal: "1.14.0"

	- name: Build libllvm_ext
	run: make -B deps

	- name: Test compiler_spec
	run: make compiler_spec junit_output=.junit/compiler_spec.xml

	- name: Integration test
	run: make crystal std_spec threads=1 junit_output=.junit/std_spec.xml

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