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* [opt-viewer] Include default values in help outputBrian Gesiak2017-06-101-1/+1
| | | | | | | | | | | | | | | | | Summary: Python's argparse module includes a `%(default)s` format specifier that can be used to print the default value of an option in its help text. Use this for opt-viewer utilities' `--jobs` arguments. Reviewers: anemet Reviewed By: anemet Subscribers: llvm-commits, fhahn Differential Revision: https://reviews.llvm.org/D34081 llvm-svn: 305155
* [opt-diff] Fix the case when the script is invoked with directoriesAdam Nemet2017-03-061-1/+3
| | | | llvm-svn: 297055
* New tool: opt-diff.pyAdam Nemet2017-03-021-0/+68
This tool allows generating the different between two optimization record files. The result is a YAML file too that can be visualized with opt-viewer. This is very useful to see what optimization were added and removed by a change. llvm-svn: 296767
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