| """test-suite/lit plugin to collect internal llvm json statistics. |
| |
| This assumes the benchmarks were built with the -save-stats=obj flag.""" |
| import json |
| import logging |
| import os |
| from collections import defaultdict |
| |
| |
| def _mergeStats(global_stats, statsfilename): |
| try: |
| f = open(statsfilename, "rt") |
| stats = json.load(f) |
| except Exception as e: |
| logging.warning("Could not read '%s'", statsfilename, exc_info=e) |
| return |
| for name, value in stats.items(): |
| global_stats[name] += value |
| |
| |
| def _getStats(context): |
| # We compile multiple benchmarks in the same directory in SingleSource |
| # mode. Only look at compiletime files starting with the name of our test. |
| prefix = "" |
| if context.config.single_source: |
| prefix = "%s." % os.path.basename(context.executable) |
| |
| stats = defaultdict(lambda: 0.0) |
| dir = os.path.dirname(context.test.getFilePath()) |
| for path, subdirs, files in os.walk(dir): |
| for file in files: |
| if file.endswith(".stats") and file.startswith(prefix): |
| fullpath = os.path.join(path, file) |
| _mergeStats(stats, fullpath) |
| |
| if len(stats) == 0: |
| logging.warning("No stats for '%s'", context.test.getFullName()) |
| |
| result = dict() |
| for key, value in stats.items(): |
| result[key] = value |
| return result |
| |
| |
| def mutatePlan(context, plan): |
| plan.metric_collectors.append(_getStats) |
