diff options
| author | John Naylor <john.naylor@postgresql.org> | 2025-06-23 18:03:56 +0700 |
|---|---|---|
| committer | John Naylor <john.naylor@postgresql.org> | 2025-06-23 18:03:56 +0700 |
| commit | 43da394304fba820830da2cef2c0214fe292c037 (patch) | |
| tree | ad7a9c591f06d1a45cf89f6d625426cdb07ea029 /doc/src | |
| parent | 2c0d8b95080e1d51c60d9c6f6a2e4460d6dfaf77 (diff) | |
| download | postgresql-43da394304fba820830da2cef2c0214fe292c037.tar.gz postgresql-43da394304fba820830da2cef2c0214fe292c037.zip | |
Properly fix AVX-512 CRC calculation bug
The problem that led to the workaround in f83f14881c7 was not in fact
a compiler bug, but a failure to zero the upper bits of the vector
register containing the initial scalar CRC value. Fix that and revert
the workaround.
Diagnosed-by: Nathan Bossart <nathandbossart@gmail.com>
Diagnosed-by: Raghuveer Devulapalli <raghuveer.devulapalli@intel.com>
Tested-by: Andy Fan <zhihuifan1213@163.com>
Tested-by: Soumyadeep Chakraborty <soumyadeep2007@gmail.com>
Reviewed-by: Nathan Bossart <nathandbossart@gmail.com>
Reviewed-by: Raghuveer Devulapalli <raghuveer.devulapalli@intel.com>
Discussion: https://postgr.es/m/PH8PR11MB82866B07AA6758D12F699C00FB70A@PH8PR11MB8286.namprd11.prod.outlook.com
Diffstat (limited to 'doc/src')
0 files changed, 0 insertions, 0 deletions