simplify x^0 and x^1 #9001

	name: Run CSmith

	on:
	pull_request:
	branches: [ develop ]

	jobs:
	# This job takes approximately 18 minutes
	run-10-random-tests:
	runs-on: ubuntu-20.04
	steps:
	- uses: actions/checkout@v4
	with:
	submodules: recursive
	- name: Fetch dependencies
	env:
	# This is needed in addition to -yq to prevent apt-get from asking for
	# user input
	DEBIAN_FRONTEND: noninteractive
	run: \|
	sudo apt-get update
	sudo apt-get install --no-install-recommends -y build-essential flex bison maven ccache clang-10 clang++-10
	sudo apt-get install --no-install-recommends -y csmith libcsmith-dev
	make -C src minisat2-download
	- name: Prepare ccache
	uses: actions/cache@v4
	with:
	save-always: true
	path: .ccache
	key: ${{ runner.os }}-20.04-make-clang-${{ github.ref }}-${{ github.sha }}-CSMITH
	restore-keys: \|
	${{ runner.os }}-20.04-make-clang-${{ github.ref }}
	${{ runner.os }}-20.04-make-clang
	- name: ccache environment
	run: \|
	echo "CCACHE_BASEDIR=$PWD" >> $GITHUB_ENV
	echo "CCACHE_DIR=$PWD/.ccache" >> $GITHUB_ENV
	- name: Zero ccache stats and limit in size
	run: ccache -z --max-size=500M
	- name: Build with make
	run: \|
	make -C src CXX='ccache /usr/bin/clang++' cbmc.dir goto-cc.dir goto-instrument.dir -j4
	- name: Print ccache stats
	run: ccache -s
	- name: Run 10 randomly-generated CSmith tests
	run: \|
	export PATH=$PWD/src/cbmc:$PWD/src/goto-cc:$PWD/src/goto-instrument:$PATH
	scripts/csmith.sh 10

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