mirror of
https://github.com/carbon-language/carbon-lang.git
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aa69a484eb
Adds a flag `--optimize=<mode>` that specifies what to optimize for: * `--optimize=none` turns off the optimizer as much as possible, but still respects always_inline. * `--optimize=debug` aims to be the equivalent of `-Og` / `-O1`, and provides optimizations that don't affect the ability to debug the program. This is the default. * `--optimize=size` optimizes for the size of the produced program, and aims to be the equivalent of `-Oz`. * `--optimize=speed` optimizes for the execution time of the produced program, and aims to be the equivalent of `-O3`. Following the approach taken by Clang, the optimization level feeds into both the configuration of the LLVM pass pipeline and the attributes added to function definitions generated by the frontend. Optimization is performed in a new phase, `optimize`, which runs between `lower` and `codegen`. --------- Co-authored-by: Dana Jansens <danakj@orodu.net> Co-authored-by: Chandler Carruth <chandlerc@gmail.com>
109 lines
3.2 KiB
Python
Executable File
109 lines
3.2 KiB
Python
Executable File
#!/usr/bin/env python3
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"""Autoupdates testdata in toolchain."""
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__copyright__ = """
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Part of the Carbon Language project, under the Apache License v2.0 with LLVM
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Exceptions. See /LICENSE for license information.
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SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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"""
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import argparse
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import re
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import shlex
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import subprocess
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import sys
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from pathlib import Path
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def main() -> None:
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bazel = str(Path(__file__).parents[1] / "scripts" / "run_bazel.py")
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configs = []
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# Use the most recently used build mode, or `fastbuild` if missing
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# `bazel-bin`.
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build_mode = "fastbuild"
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workspace = subprocess.check_output(
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[
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bazel,
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"info",
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"workspace",
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"--ui_event_filters=stdout",
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],
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encoding="utf-8",
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).strip()
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bazel_bin_path = Path(workspace).joinpath("bazel-bin")
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if bazel_bin_path.exists():
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link = str(bazel_bin_path.readlink())
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m = re.search(r"-(\w+)/bin$", link)
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if m:
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build_mode = m[1]
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else:
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exit(f"Build mode not found in `bazel-bin` symlink: {link}")
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# Parse arguments.
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parser = argparse.ArgumentParser(__doc__)
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parser.add_argument("--non-fatal-checks", action="store_true")
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parser.add_argument(
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"--print_slowest_tests", default=0, help="Forwarded to file_test"
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)
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parser.add_argument("--threads", help="Forwarded to file_test")
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parser.add_argument("files", nargs="*")
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args = parser.parse_args()
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if args.non_fatal_checks:
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if build_mode == "optimize":
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exit(
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"`--non-fatal-checks` is incompatible with inferred "
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"`-c optimize` build mode"
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)
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configs.append("--config=non-fatal-checks")
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argv = [
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bazel,
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"run",
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"-c",
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build_mode,
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*configs,
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"--experimental_convenience_symlinks=ignore",
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"--ui_event_filters=-info,-stdout,-stderr,-finish",
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"//toolchain/testing:file_test",
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"--",
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"--autoupdate",
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"--print_slowest_tests",
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str(args.print_slowest_tests),
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]
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if args.threads:
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argv += ["--threads", args.threads]
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# Support specifying tests to update, such as:
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# ./autoupdate_testdata.py lex/**/*
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if args.files:
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repo_root = Path(__file__).parents[1]
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file_tests = []
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# Filter down to just test files.
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for f in args.files:
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if f.endswith(".carbon"):
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path = str(Path(f).resolve().relative_to(repo_root))
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if path.count("/testdata/"):
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file_tests.append(path)
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if not file_tests:
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sys.exit(
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"Args do not seem to be test files; for example, "
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f"{args.files[0]}"
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)
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argv.append("--file_tests=" + ",".join(file_tests))
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# Provide an empty stdin so that the driver tests that read from stdin
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# don't block waiting for input. This matches the behavior of `bazel test`.
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result = subprocess.run(argv)
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if result.returncode != 0:
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sys.exit(
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f"Command `{shlex.join(argv)}` failed with exit code "
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f"`{result.returncode}`"
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)
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if __name__ == "__main__":
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try:
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main()
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except KeyboardInterrupt:
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sys.exit(1)
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