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fb66991577
Summary:
Provide feedback to users of opt-diff.py, opt-stats.py, and opt-viewer.py,
on how many YAML files have finished being processed, and how many HTML
files have been generated. This feedback is particularly helpful for
opt-viewer.py, which may take a long time to complete when given many
large YAML files as input.
The progress indicators use simple output such as the following:
```
Reading YAML files...
9 of 1197
```
Test plan:
Run `utils/opt-viewer/opt-*.py` on a CentOS and macOS machine, using
Python 3.4 and Python 2.7 respectively, and ensure the output is
formatted well on both.
Reviewers: anemet, davidxl
Reviewed By: anemet
Subscribers: simon.f.whittaker, llvm-commits
Differential Revision: https://reviews.llvm.org/D34735
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@306726 91177308-0d34-0410-b5e6-96231b3b80d8