Zachary Turner 8e4d247b07 [lit] Clean output directories before running tests. ... Presently lit leaks files in the tests' output directories. Specifically, if a test creates output files, lit makes no effort to remove them prior to the next test run. This is problematic because it leads to false positives whenever a test passes because stale files were present. In general it is a source of flakiness that should be removed. This patch addresses this by building the list of all test directories that are part of the current run set, and then deleting those directories and recreating them anew. This gives each test a clean baseline to start from. Differential Revision: https://reviews.llvm.org/D34732 llvm-svn: 306832		2017-06-30 16:01:30 +00:00
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lit.cfg	[lit] Clean output directories before running tests.	2017-06-30 16:01:30 +00:00
lit.site.cfg.in