Update CI configuration #5

	name: Regression

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

	jobs:
	regress:
	name: Verilator Regression Suite
	runs-on: ubuntu-latest

	steps:
	- name: Checkout Code
	uses: actions/checkout@v5

	- name: Set up Python
	uses: actions/setup-python@v5
	with:
	python-version: '3.x'

	- name: Install Python Dependencies
	run: \|
	python -m pip install --upgrade pip
	pip install numpy

	- name: Cache Verilator Build
	id: cache-verilator
	uses: actions/cache@v5
	with:
	path: /home/runner/verilator-bin
	key: verilator-5.048-v2

	- name: Install Build Prerequisites
	run: \|
	sudo apt-get update
	sudo apt-get install -y git help2man perl python3 make autoconf g++ flex bison ccache
	sudo apt-get install -y libgoogle-perftools-dev libjemalloc-dev numactl perl-doc
	sudo apt-get install -y libfl2 \|\| true
	sudo apt-get install -y libfl-dev \|\| true
	sudo apt-get install -y zlibc zlib1g zlib1g-dev liblz4 liblz4-dev \|\| true

	- name: Compile and Install Verilator v5.048
	if: steps.cache-verilator.outputs.cache-hit != 'true'
	run: \|
	unset VERILATOR_ROOT
	git clone https://github.com/verilator/verilator
	cd verilator
	git checkout v5.048
	autoconf
	./configure --prefix=/home/runner/verilator-bin
	make -j$(nproc)
	make install

	- name: Add Verilator to PATH
	run: \|
	echo "/home/runner/verilator-bin/bin" >> $GITHUB_PATH

	- name: Run Regression Suite
	run: \|
	make -C test regress REGRESS_PACKET_COUNT=65536 THREADS=4

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