perf: special-case pow(2, n) with shl #105

	name: Benchmark

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

	env:
	CARGO_TERM_COLOR: always

	jobs:
	codspeed:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- uses: dtolnay/rust-toolchain@stable
	- uses: Swatinem/rust-cache@v2
	with:
	cache-on-failure: true
	- name: Install cargo-codspeed
	uses: taiki-e/install-action@v2
	with:
	tool: cargo-codspeed
	- name: Build the benchmark target(s)
	run: cargo codspeed build --profile profiling -p ruint-bench bench
	- name: Run the benchmarks
	uses: CodSpeedHQ/action@v3
	with:
	run: cargo codspeed run -p ruint-bench bench
	token: ${{ secrets.CODSPEED_TOKEN }}

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