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Chandler CarruthandDana Jansens c50e21695f Allow detecting benchmark dry runs and reduce benchmark test costs (#8013 )

We use the dry-run mode for running benchmarks in a test. This is
important, but doesn't need to use large batches of files. Doing so
would cause the compilation benchmark to become excessively slow,
especially on GitHub runners.

Sadly, Google Benchmark doesn't expose its dry-run mode, but we already
have our own `main` function that injects custom logic for our
benchmarks. Extend that to detect the dry run flags and environment
variables so that we can customize the benchmark behavior in that mode.
Then we use that detection to reduce the batch size.

Also cleans up the counters computation to both be a bit better
organized (I think), and to avoid keeping the tokenized buffers we build
to count tokens around during the timed running of the benchmark.

Also cleans up a bug in some clamping code spotted while fixing this.

Assisted-by: Antigravity with Gemini

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Co-authored-by: Dana Jansens <danakj@orodu.net>

2026-10-22 18:00:21 +00:00

base

Allow detecting benchmark dry runs and reduce benchmark test costs (#8013 )

2026-10-22 18:00:21 +00:00

file_test

autoupdate: mention in the output tests that would still fail after the update (#7877 )

2026-10-01 19:40:30 +00:00

fuzzing

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README.md

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README.md

Testing

Testing-specific libraries.