Argyrios Kyrtzidis 802db564f9 [Support/FileSystem] Add sub-second precision for atime/mtime of sys::fs::file_status on unix platforms ...

Summary:
getLastAccessedTime() and getLastModificationTime() provided times in nanoseconds but with only 1 second resolution, even when the underlying file system could provide more precise times than that.
These changes add sub-second precision for unix platforms that support improved precision.

Also add some comments to make sure people are aware that the resolution of times can vary across different file systems.

Reviewers: labath, zturner, aaron.ballman, kristina

Reviewed By: aaron.ballman, kristina

Subscribers: lebedev.ri, mgorny, kristina, llvm-commits

Differential Revision: https://reviews.llvm.org/D54826

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@347530 91177308-0d34-0410-b5e6-96231b3b80d8

2018-11-26 00:03:39 +00:00

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abi-breaking.h.cmake

[cmake] Enable reverse iteration by default through build macro

2017-06-06 00:36:09 +00:00

AsmParsers.def.in

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AsmPrinters.def.in

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config.h.cmake

[Support/FileSystem] Add sub-second precision for atime/mtime of sys::fs::file_status on unix platforms

2018-11-26 00:03:39 +00:00

Disassemblers.def.in

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llvm-config.h.cmake

Add PerfJITEventListener for perf profiling support.

2018-07-24 00:54:06 +00:00

Targets.def.in

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