1 files changed, 0 insertions, 81 deletions
diff --git a/afdo_redaction/remove_indirect_calls.py b/afdo_redaction/remove_indirect_calls.py
deleted file mode 100755
index b879b2f0..00000000
--- a/afdo_redaction/remove_indirect_calls.py
+++ /dev/null
@@ -1,81 +0,0 @@
-#!/usr/bin/env python2
-# -*- coding: utf-8 -*-
-# Copyright 2019 The Chromium OS Authors. All rights reserved.
-# Use of this source code is governed by a BSD-style license that can be
-# found in the LICENSE file.
-
-"""Script to remove all indirect call targets from textual AFDO profiles.
-
-Indirect call samples can cause code to appear 'live' when it otherwise
-wouldn't be. This resurrection can happen either by the way of profile-based
-speculative devirtualization, or because of imprecision in LLVM's liveness
-calculations when performing LTO.
-
-This generally isn't a problem when an AFDO profile is applied to the binary it
-was collected on. However, because we e.g., build NaCl from the same set of
-objects as Chrome, this can become problematic, and lead to NaCl doubling in
-size (or worse). See crbug.com/1005023 and crbug.com/916130.
-"""
-
-from __future__ import division, print_function
-
-import argparse
-import re
-import sys
-
-
-def _remove_indirect_call_targets(lines):
-  # Lines with indirect call targets look like:
-  #   1.1: 1234 foo:111 bar:122
-  #
-  # Where 1.1 is the line info/discriminator, 1234 is the total number of
-  # samples seen for that line/discriminator, foo:111 is "111 of the calls here
-  # went to foo," and bar:122 is "122 of the calls here went to bar."
-  call_target_re = re.compile(
-      r"""
-      ^\s+                    # Top-level lines are function records.
-      \d+(?:\.\d+)?:          # Line info/discriminator
-      \s+
-      \d+                     # Total sample count
-      \s+
-      ((?:[^\s:]+:\d+\s*)+)   # Indirect call target(s)
-      $
-  """, re.VERBOSE)
-  for line in lines:
-    line = line.rstrip()
-
-    match = call_target_re.match(line)
-    if not match:
-      yield line + '\n'
-      continue
-
-    group_start, group_end = match.span(1)
-    assert group_end == len(line)
-    yield line[:group_start].rstrip() + '\n'
-
-
-def run(input_stream, output_stream):
-  for line in _remove_indirect_call_targets(input_stream):
-    output_stream.write(line)
-
-
-def main():
-  parser = argparse.ArgumentParser(
-      description=__doc__, formatter_class=argparse.RawDescriptionHelpFormatter)
-  parser.add_argument(
-      '--input',
-      default='/dev/stdin',
-      help='File to read from. Defaults to stdin.')
-  parser.add_argument(
-      '--output',
-      default='/dev/stdout',
-      help='File to write to. Defaults to stdout.')
-  args = parser.parse_args()
-
-  with open(args.input) as stdin:
-    with open(args.output, 'w') as stdout:
-      run(stdin, stdout)
-
-
-if __name__ == '__main__':
-  main()