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This notably gets prefetch working on MSVC
Implementation note:
https://docs.microsoft.com/en-us/windows/win32/api/winnt/nf-winnt-prefetchcacheline
MSVC does have PreFetchCacheLine, but that would require including <windows.h>
in a header
PiperOrigin-RevId: 449602543
Change-Id: I5e6ca4b7c3d287779aa03c2fd348b41fb65c3680
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functions.
Add a new (internal) feature test macro to detect whether the wrappers are no-ops on a given platform.
Note that one-arg __builtin_prefetch(x) is equivalent to __builtin_prefetch(x, 0, 3), per `man BUILTIN_PREFETCH(3)` and gcc docs.
PiperOrigin-RevId: 449508660
Change-Id: I144e750205eec0c956d8dd62bc72e10bdb87c4f7
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3d018c03a34bf273a4b24b3584ed77f0a6d21686 by Abseil Team <absl-team@google.com>:
Fix a spelling typo (s/boundries/boundaries).
PiperOrigin-RevId: 442041877
Change-Id: I608020697d37b85316bb9a0838e4b457659c926c
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518b8119e51db24ce7fb0fd2fe537ec43825c3e6 by Dino Radakovic <dinor@google.com>:
absl/types/internal/variant: Make include guard uppercase
https://google.github.io/styleguide/cppguide.html#The__define_Guard
PiperOrigin-RevId: 441911692
Change-Id: I9837dd07f20204d8253f20627b0917a34dc21825
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b91696c38310a7cae8c1ea9e2d479495f5dc3f69 by Greg Falcon <gfalcon@google.com>:
Add an internal-only API to wrap __builtin_prefetch() if available.
This private API is intended for future use by the Abseil implementation. Like any internal-namespaced function, it may be changed or removed at any time.
PiperOrigin-RevId: 441894616
Change-Id: Iaa48bd4680b373f4a0d5afab0cb35e2a1908595f
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0f01e8b0551a662e02dff60840c54320f987315f by Derek Mauro <dmauro@google.com>:
C++20: Use the standard `constinit` keyword for `ABSL_CONST_INIT` when available
PiperOrigin-RevId: 441778874
Change-Id: I70c616469752ff23b326b1c615437599f42cc6aa
GitOrigin-RevId: 3d018c03a34bf273a4b24b3584ed77f0a6d21686
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Derek Mauro
Greg Falcon
Abseil Team