v8/tools/check-unused-bailouts.sh

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#!/bin/bash
# Copyright 2015 the V8 project authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
v8_root=$(readlink -f $(dirname $BASH_SOURCE)/../)
bailouts=$(grep -oP 'V\(\K(k[^,]*)' "$v8_root/src/bailout-reason.h")
for bailout in $bailouts; do
bailout_uses=$(grep -r $bailout "$v8_root/src" "$v8_root/test/cctest" | wc -l)
if [ $bailout_uses -eq "1" ]; then
echo "Bailout reason \"$bailout\" seems to be unused."
fi
done
echo "Kthxbye."