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* [llvm-cov] Disable threading in a test. NFC.Vedant Kumar2017-07-111-1/+1
| | | | | | | | | | | | PR30735 reports an issue where llvm-cov hangs with a worker thread waiting on a condition, and the main thread waiting to join() the workers. While this doesn't appear to be a bug in llvm-cov or the ThreadPool implementation, it would be helpful to disable the use of threading in the llvm-cov tests where no test coverage is added. More context: https://bugs.llvm.org/show_bug.cgi?id=30735 llvm-svn: 307610
* [llvm-cov] Avoid 0% when reporting something that's 0/0Alex Lorenz2016-11-211-0/+19
This commit makes llvm-cov avoid showing 0% (0/0) coverage for things like file function coverage, etc. in reports and HTML output. This can happen for files like headers that have macros but no functions. This commit makes llvm-cov report - (0/0) instead. rdar://29246480 Differential Revision: https://reviews.llvm.org/D26615 llvm-svn: 287539
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