[libc-commits] [libc] [libc][POSIX] Add clock_settime() function for NVPTX targets (PR #168494)

[Anton Shepelev via libc-commits]

amemov wrote:

```
[anton at anton-pc runtimes-nvptx64-nvidia-cuda-bins]$ ninja libc.test.src.time.clock_settime_test.__hermetic__
[1/1] Running hermetic test libc.test.src.time.clock_settime_test.__hermetic__
[==========] Running 5 tests from 1 test suite.
[ RUN      ] LlvmLibcClockSetTime.MonotonicIsNotSettable
[       OK ] LlvmLibcClockSetTime.MonotonicIsNotSettable (2 us)
[ RUN      ] LlvmLibcClockSetTime.InvalidClockId
[       OK ] LlvmLibcClockSetTime.InvalidClockId (2 us)
[ RUN      ] LlvmLibcClockSetTime.InvalidTimespecNsec
[       OK ] LlvmLibcClockSetTime.InvalidTimespecNsec (1 us)
[ RUN      ] LlvmLibcClockSetTime.NullPointerIsEFAULT
[       OK ] LlvmLibcClockSetTime.NullPointerIsEFAULT (2 us)
[ RUN      ] LlvmLibcClockSetTime.ClockIsSet
[       OK ] LlvmLibcClockSetTime.ClockIsSet (3 us)
Ran 5 tests.  PASS: 5  FAIL: 0
[anton at anton-pc runtimes-nvptx64-nvidia-cuda-bins]$ 
```

https://github.com/llvm/llvm-project/pull/168494