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#!/bin/bash
set -eux
target="${1:-}"
if [ -z "$target" ]; then
host_target=$(rustc -vV | awk '/^host/ { print $2 }')
echo "Defaulted to host target $host_target"
target="$host_target"
fi
iai_home="iai-home"
# Use the arch as a tag to disambiguate artifacts
tag="$(echo "$target" | cut -d'-' -f1)"
# Download the baseline from master
./ci/ci-util.py locate-baseline --download --extract --tag "$tag"
# Run benchmarks once
function run_icount_benchmarks() {
cargo_args=(
"--bench" "icount"
"--no-default-features"
"--features" "unstable,unstable-float,icount"
)
iai_args=(
"--home" "$(pwd)/$iai_home"
"--callgrind-limits=ir=5.0"
"--save-summary"
)
# Parse `cargo_arg0 cargo_arg1 -- iai_arg0 iai_arg1` syntax
parsing_iai_args=0
while [ "$#" -gt 0 ]; do
if [ "$parsing_iai_args" == "1" ]; then
iai_args+=("$1")
elif [ "$1" == "--" ]; then
parsing_iai_args=1
else
cargo_args+=("$1")
fi
shift
done
# Run iai-callgrind benchmarks. Do this in a subshell with `&& true` to
# capture rather than exit on error.
(cargo bench "${cargo_args[@]}" -- "${iai_args[@]}") && true
exit_code="$?"
if [ "$exit_code" -eq 0 ]; then
echo "Benchmarks completed with no regressions"
elif [ -z "${PR_NUMBER:-}" ]; then
# Disregard regressions after merge
echo "Benchmarks completed with regressions; ignoring (not in a PR)"
else
./ci/ci-util.py handle-bench-regressions "$PR_NUMBER"
fi
}
# Run once with softfloats, once with arch instructions enabled
run_icount_benchmarks --features force-soft-floats -- --save-baseline=softfloat
run_icount_benchmarks -- --save-baseline=hardfloat
# Name and tar the new baseline
name="baseline-icount-$tag-$(date -u +'%Y%m%d%H%M')-${GITHUB_SHA:0:12}"
echo "BASELINE_NAME=$name" >>"$GITHUB_ENV"
tar cJf "$name.tar.xz" "$iai_home"
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