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* Migrate empty CrcCordState to absl::NoDestructor.Abseil Team2024-01-181-0/+1
| | | | | | | Note that this only changes how we allocate the empty state, and reference countings of `empty` stay the same. PiperOrigin-RevId: 599526339 Change-Id: I2c6aaf875c144c947e17fe8f69692b1195b55dd7
* Roll forward support for ARM intrinsics in crc_memcpyAbseil Team2023-09-071-4/+1
| | | | | | | | | | | | | | | | | | | This CL rolls forward a previous change which we rolled back temporarily due to compilation errors on x86 when PCLMUL intrinsics were unavailable. *** Original change description *** This change replaces inline x86 intrinsics with generic versions that compile for both x86 and ARM depending on the target arch. This change does not enable the accelerated crc memcpy engine on ARM. That will be done in a subsequent change after the optimal number of vector and integer regions for different CPUs is determined. *** PiperOrigin-RevId: 563416413 Change-Id: Iee630a15ed83c26659adb0e8a03d3f3d3a46d688
* Rollback adding support for ARM intrinsicsAbseil Team2023-09-051-1/+4
| | | | | | | | In some configurations this change causes compilation errors. We will roll this forward again after those issue are addressed. PiperOrigin-RevId: 562810916 Change-Id: I45b2a8d456273e9eff188f36da8f11323c4dfe66
* Add support for ARM intrinsics in crc_memcpyAbseil Team2023-09-051-4/+1
| | | | | | | | | | | | This change replaces inline x86 intrinsics with generic versions that compile for both x86 and ARM depending on the target arch. This change does not enable the accelerated crc memcpy engine on ARM. That will be done in a subsequent change after the optimal number of vector and integer regions for different CPUs is determined. PiperOrigin-RevId: 562785420 Change-Id: I8ba4aa8de17587cedd92532f03767059a481f159
* Implement AbslStringify for crc32c_t in order to support absl::StrFormat ↵Abseil Team2023-08-011-0/+1
| | | | | | | natively PiperOrigin-RevId: 552940359 Change-Id: I925764757404c0c9f2a13ed729190d51f4ac46cf
* Changes absl::crc32c_t insertion operator (<<) to return value as 0-padded ↵Abseil Team2023-08-011-0/+1
| | | | | | | hex instead of dec PiperOrigin-RevId: 552927211 Change-Id: I0375d60a9df4cdfc694fe8d3b3d790f80fc614a1
* Allow Cord to store chunked checksumsDerek Mauro2022-12-111-0/+28
| | | | | PiperOrigin-RevId: 494587777 Change-Id: I41504edca6fcf750d52602fa84a33bc7fe5fbb48
* Use ABSL_HAVE_BUILTIN to fix -Wundef __has_builtin warningDerek Mauro2022-11-281-1/+3
| | | | | | | Fixes #1329 PiperOrigin-RevId: 491372279 Change-Id: I93c094b06ece9cb9bdb39fd4541353e0344a1a57
* Release the CRC libraryDerek Mauro2022-11-091-0/+146
This implementation can advantage of hardware acceleration available on common CPUs when using GCC and Clang. A future update may enable this on MSVC as well. PiperOrigin-RevId: 487327024 Change-Id: I99a8f1bcbdf25297e776537e23bd0a902e0818a1
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