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* [clang] Get rid of "%T" expansionsKuba Mracek2017-08-151-9/+11
| | | | | | | | | | The %T lit expansion expands to a common directory shared between all the tests in the same directory, which is unexpected and unintuitive, and more importantly, it's been a source of subtle race conditions and flaky tests. In https://reviews.llvm.org/D35396, it was agreed that it would be best to simply ban %T and only keep %t, which is unique to each test. When a test needs a temporary directory, it can just create one using mkdir %t. This patch removes %T in clang. Differential Revision: https://reviews.llvm.org/D36437 llvm-svn: 310950
* The test added in r275267 does not work on read-only checkouts because of ↵Pierre Gousseau2016-07-141-7/+12
| | | | | | | | the use of touch -m -t. Following Tom Rybka suggestion, the test files are now copied to a temporary directory first. llvm-svn: 275415
* [PCH] Add a fno-pch-timestamp option to cc1 to disable inclusion of ↵Pierre Gousseau2016-07-131-0/+27
timestamps in PCH files. This is to allow distributed build systems, that do not preserve time stamps, to use PCH files. Second and last part of the patch proposed at: Differential Revision: http://reviews.llvm.org/D20867 llvm-svn: 275267
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