Revert "Reland "[utils] Implement the llvm-locstats tool""

This reverts commit rL373183.

llvm-svn: 373200

1 files changed, 0 insertions, 208 deletions

diff --git a/llvm/utils/llvm-locstats/llvm-locstats.py b/llvm/utils/llvm-locstats/llvm-locstats.py
deleted file mode 100755
index 22e5ae6b223..00000000000
--- a/llvm/utils/llvm-locstats/llvm-locstats.py
+++ /dev/null
@@ -1,208 +0,0 @@
-#!/usr/bin/env python
-#
-# This is a tool that works like debug location coverage calculator.
-# It parses the llvm-dwarfdump --statistics output by reporting it
-# in a more human readable way.
-#
-
-from __future__ import print_function
-import argparse
-import os
-import sys
-from json import loads
-from math import ceil
-from subprocess import Popen, PIPE
-
-def coverage_buckets():
-  yield '0%'
-  yield '1-9%'
-  for start in range(10, 91, 10):
-    yield '{0}-{1}%'.format(start, start + 9)
-  yield '100%'
-
-def locstats_output(
-  variables_total,
-  variables_total_locstats,
-  variables_with_loc,
-  scope_bytes_covered,
-  scope_bytes_from_first_def,
-  variables_coverage_map
-  ):
-
-  pc_ranges_covered = int(ceil(scope_bytes_covered * 100.0)
-              / scope_bytes_from_first_def)
-  variables_coverage_per_map = {}
-  for cov_bucket in coverage_buckets():
-    variables_coverage_per_map[cov_bucket] = \
-      int(ceil(variables_coverage_map[cov_bucket] * 100.0) \
-               / variables_total_locstats)
-
-  print (' =================================================')
-  print ('            Debug Location Statistics       ')
-  print (' =================================================')
-  print ('     cov%          samples          percentage(~)  ')
-  print (' -------------------------------------------------')
-  for cov_bucket in coverage_buckets():
-    print ('   {0:6}        {1:8d}             {2:3d}%'. \
-      format(cov_bucket, variables_coverage_map[cov_bucket], \
-             variables_coverage_per_map[cov_bucket]))
-  print (' =================================================')
-  print (' -the number of debug variables processed: ' \
-    + str(variables_total_locstats))
-  print (' -PC ranges covered: ' + str(pc_ranges_covered) + '%')
-
-  # Only if we are processing all the variables output the total
-  # availability.
-  if variables_total and variables_with_loc:
-    total_availability = int(ceil(variables_with_loc * 100.0) \
-                                  / variables_total)
-    print (' -------------------------------------------------')
-    print (' -total availability: ' + str(total_availability) + '%')
-  print (' =================================================')
-
-def parse_program_args(parser):
-  parser.add_argument('-only-variables', action='store_true',
-            default=False,
-            help='calculate the location statistics only for '
-               'local variables'
-            )
-  parser.add_argument('-only-formal-parameters', action='store_true',
-            default=False,
-            help='calculate the location statistics only for '
-               'formal parameters'
-            )
-  parser.add_argument('-ignore-debug-entry-values', action='store_true',
-            default=False,
-            help='ignore the location statistics on locations with '
-               'entry values'
-            )
-  parser.add_argument('file_name', type=str, help='file to process')
-  return parser.parse_args()
-
-
-def Main():
-  parser = argparse.ArgumentParser()
-  results = parse_program_args(parser)
-
-  if len(sys.argv) < 2:
-    print ('error: Too few arguments.')
-    parser.print_help()
-    sys.exit(1)
-
-  if results.only_variables and results.only_formal_parameters:
-    print ('error: Please use just one only* option.')
-    parser.print_help()
-    sys.exit(1)
-
-  # These will be different due to different options enabled.
-  variables_total = None
-  variables_total_locstats = None
-  variables_with_loc = None
-  variables_scope_bytes_covered = None
-  variables_scope_bytes_from_first_def = None
-  variables_scope_bytes_entry_values = None
-  variables_coverage_map = {}
-  binary = results.file_name
-
-  # Get the directory of the LLVM tools.
-  llvm_dwarfdump_cmd = os.path.join(os.path.dirname(__file__), \
-                                    "llvm-dwarfdump")
-  # The statistics llvm-dwarfdump option.
-  llvm_dwarfdump_stats_opt = "--statistics"
-
-  subproc = Popen([llvm_dwarfdump_cmd, llvm_dwarfdump_stats_opt, binary], \
-                  stdin=PIPE, stdout=PIPE, stderr=PIPE, \
-                  universal_newlines = True)
-  cmd_stdout, cmd_stderr = subproc.communicate()
-
-  # Get the JSON and parse it.
-  json_parsed = None
-
-  try:
-    json_parsed = loads(cmd_stdout)
-  except:
-    print ('error: No valid llvm-dwarfdump statistics found.')
-    sys.exit(1)
-
-  if results.only_variables:
-    # Read the JSON only for local variables.
-    variables_total_locstats = \
-      json_parsed['total vars procesed by location statistics']
-    variables_scope_bytes_covered = \
-      json_parsed['vars scope bytes covered']
-    variables_scope_bytes_from_first_def = \
-      json_parsed['vars scope bytes total']
-    if not results.ignore_debug_entry_values:
-      for cov_bucket in coverage_buckets():
-        cov_category = "vars with {} of its scope covered".format(cov_bucket)
-        variables_coverage_map[cov_bucket] = json_parsed[cov_category]
-    else:
-      variables_scope_bytes_entry_values = \
-        json_parsed['vars entry value scope bytes covered']
-      variables_scope_bytes_covered = variables_scope_bytes_covered \
-         - variables_scope_bytes_entry_values
-      for cov_bucket in coverage_buckets():
-        cov_category = \
-          "vars (excluding the debug entry values) " \
-          "with {} of its scope covered".format(cov_bucket)
-        variables_coverage_map[cov_bucket] = json_parsed[cov_category]
-  elif results.only_formal_parameters:
-    # Read the JSON only for formal parameters.
-    variables_total_locstats = \
-      json_parsed['total params procesed by location statistics']
-    variables_scope_bytes_covered = \
-      json_parsed['formal params scope bytes covered']
-    variables_scope_bytes_from_first_def = \
-      json_parsed['formal params scope bytes total']
-    if not results.ignore_debug_entry_values:
-      for cov_bucket in coverage_buckets():
-        cov_category = "params with {} of its scope covered".format(cov_bucket)
-        variables_coverage_map[cov_bucket] = json_parsed[cov_category]
-    else:
-      variables_scope_bytes_entry_values = \
-        json_parsed['formal params entry value scope bytes covered']
-      variables_scope_bytes_covered = variables_scope_bytes_covered \
-        - variables_scope_bytes_entry_values
-      for cov_bucket in coverage_buckets():
-        cov_category = \
-          "params (excluding the debug entry values) " \
-          "with {} of its scope covered".format(cov_bucket)
-  else:
-    # Read the JSON for both local variables and formal parameters.
-    variables_total = \
-      json_parsed['source variables']
-    variables_with_loc = json_parsed['variables with location']
-    variables_total_locstats = \
-      json_parsed['total variables procesed by location statistics']
-    variables_scope_bytes_covered = \
-      json_parsed['scope bytes covered']
-    variables_scope_bytes_from_first_def = \
-      json_parsed['scope bytes total']
-    if not results.ignore_debug_entry_values:
-      for cov_bucket in coverage_buckets():
-        cov_category = "variables with {} of its scope covered". \
-                       format(cov_bucket)
-        variables_coverage_map[cov_bucket] = json_parsed[cov_category]
-    else:
-      variables_scope_bytes_entry_values = \
-        json_parsed['entry value scope bytes covered']
-      variables_scope_bytes_covered = variables_scope_bytes_covered \
-        - variables_scope_bytes_entry_values
-      for cov_bucket in coverage_buckets():
-        cov_category = "variables (excluding the debug entry values) " \
-                       "with {} of its scope covered". format(cov_bucket)
-        variables_coverage_map[cov_bucket] = json_parsed[cov_category]
-
-  # Pretty print collected info.
-  locstats_output(
-    variables_total,
-    variables_total_locstats,
-    variables_with_loc,
-    variables_scope_bytes_covered,
-    variables_scope_bytes_from_first_def,
-    variables_coverage_map
-    )
-
-if __name__ == '__main__':
-  Main()
-  sys.exit(0)