Add 32-bit x86 compile test #12

	# Benchmarks the current code against the previous release (latest vX.Y.Z tag)
	# on Linux, macOS and Windows. If the new code is more than 2% slower than the
	# previous release at any of the tested array sizes the job fails, which helps
	# detect performance regressions.

	name: benchmark

	# Run on every push, so any branch (including feature branches) is benchmarked.
	on: push

	jobs:
	benchmark:
	name: Benchmark vs. previous release (${{ matrix.os }})
	runs-on: ${{ matrix.os }}
	strategy:
	fail-fast: false
	matrix:
	os: [ubuntu-latest, macos-latest, windows-latest]
	defaults:
	run:
	# Use bash on every OS (Git Bash on Windows) so the one script works
	# everywhere. The script relies only on POSIX tools (awk), not bc.
	shell: bash
	steps:
	- name: Checkout
	uses: actions/checkout@v4
	with:
	# Fetch all history and tags so the script can build the previous
	# release from its git tag.
	fetch-depth: 0

	- name: Install Rust nightly
	uses: dtolnay/rust-toolchain@nightly

	- name: Cache cargo registry and build artifacts
	uses: Swatinem/rust-cache@v2

	- name: Benchmark latest code vs. previous release
	run: ./scripts/benchmark-vs-prev-release.sh

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