x86-Ubuntu-llvm-from-sources #1456

	name: x86-Ubuntu-llvm-from-sources

	on:
	schedule:
	- cron: '0 0 * * *'
	workflow_dispatch:

	jobs:
	build:
	runs-on: ubuntu-22.04
	steps:
	- uses: actions/checkout@v4
	- name: Download Ninja
	run: \|
	git clone https://github.com/ninja-build/ninja.git
	pushd ninja
	./configure.py --bootstrap
	popd
	- name: Add Ninja to $PATH
	run: \|
	echo "${GITHUB_WORKSPACE}/ninja" >> $GITHUB_PATH
	- name: Clone llvm-project
	run: \|
	git clone --depth 1 --single-branch --branch release/18.x https://github.com/llvm/llvm-project
	- name: Make ld.gold the default linker
	run: \|
	# This a quick and easy hack. Not something I would use on my
	# production machine.
	sudo rm /usr/bin/ld
	sudo ln -s /usr/bin/x86_64-linux-gnu-ld.gold /usr/bin/ld
	- name: Build LLVM & Clang
	run: \|
	cd llvm-project
	git checkout release/18.x
	mkdir build && cd build
	cmake -G Ninja \
	-DCMAKE_BUILD_TYPE=Release \
	-DLLVM_ENABLE_PROJECTS="clang" \
	-DLLVM_ENABLE_RUNTIMES="libcxx;libcxxabi" \
	-DLLVM_TARGETS_TO_BUILD="X86" \
	-DLLVM_OPTIMIZED_TABLEGEN=ON \
	../llvm
	ninja
	- name: Install lit
	run: \|
	sudo apt-get install python3-setuptools
	sudo pip3 install lit
	- name: Build HelloWorld
	run: \|
	cd HelloWorld
	mkdir build && cd build
	# HelloWorld only supports CT_Clang_INSTALL_DIR
	cmake -DCT_Clang_INSTALL_DIR="$GITHUB_WORKSPACE/llvm-project/build" ../
	make -j2
	- name: Build llvm-tutor + run tests
	run: \|
	mkdir build && cd build
	# Test with Clang_DIR
	cmake -DClang_DIR="$GITHUB_WORKSPACE/llvm-project/build/lib/cmake/clang/" ../
	make -j2
	lit test/

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