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GH-113464: Add a JIT backend for tier 2 (GH-113465)

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Add an option (--enable-experimental-jit for configure-based builds
or --experimental-jit for PCbuild-based ones) to build an
*experimental* just-in-time compiler, based on copy-and-patch (https://fredrikbk.com/publications/copy-and-patch.pdf).

See Tools/jit/README.md for more information on how to install the required build-time tooling.
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Brandt Bucher 2024-01-28 18:48:48 -08:00 • committed by GitHub
parent f7c05d7ad3
commit f6d9e5926b
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Tools/jit/build.py Normal file
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"""Build an experimental just-in-time compiler for CPython."""
import argparse
import pathlib
import shlex
import sys
import _targets
if __name__ == "__main__":
comment = f"$ {shlex.join([sys.executable] + sys.argv)}"
parser = argparse.ArgumentParser(description=__doc__)
parser.add_argument(
"target", type=_targets.get_target, help="a PEP 11 target triple to compile for"
)
parser.add_argument(
"-d", "--debug", action="store_true", help="compile for a debug build of Python"
)
parser.add_argument(
"-f", "--force", action="store_true", help="force the entire JIT to be rebuilt"
)
parser.add_argument(
"-v", "--verbose", action="store_true", help="echo commands as they are run"
)
args = parser.parse_args()
args.target.debug = args.debug
args.target.force = args.force
args.target.verbose = args.verbose
args.target.build(pathlib.Path.cwd(), comment=comment)