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Author SHA1 Message Date
Alex Lorenz b249c9bcf5 Recommit [driver][macOS] Pick the system version for the 
deployment target if the SDK is newer than the system

This commit reverts the revert commit r305891. Now the change from r305678
should be correct because `llvm::sys::getProcessTriple` now returns the correct
macOS version of the system after the LLVM change r307372.

Original commit message:

This commit improves the driver by making sure that it picks the system version
for the deployment target when the version of the macOS SDK is newer than the
system version.

rdar://29449467

Differential Revision: https://reviews.llvm.org/D34175

llvm-svn: 307388
 2017-07-07 10:41:19 +00:00
Alex Lorenz 71d72135b0 Revert r305678: [driver][macOS] Pick the system version for the 
deployment target if the SDK is newer than the system

This commit also reverts follow-up commits r305680 and r305685 that have
buildbot fixes.

The change in r305678 wasn't correct because it relied on
`llvm::sys::getProcessTriple`, which uses a pre-configured OS version. We should
lookup the actual macOS version of the system on which the compiler is running.

llvm-svn: 305891
 2017-06-21 10:27:24 +00:00
Alex Lorenz 89cfff03ee Move the test from r305678 to a separte file with 'REQUIRES: system-darwin' 
Otherwise it will fail on non-macOS systems.

llvm-svn: 305685
 2017-06-19 12:13:59 +00:00