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VisualStudio 2022: C4746 concerning "volatile" triggers under ARM64

VisualStudio 2022: C4746 concerning "volatile" triggers under ARM64

(1) By treh (tobireh) on 2021-11-15 14:42:37 [link] [source]

When compiling the sqlite3 source code in the recently released VisualStudio 2022 for ARM64 with warning C4746 enabled, this triggers

error C4746: volatile access of '<expression>' is subject to /volatile:<iso|ms> setting; consider using __iso_volatile_load/store intrinsic functions
in numerours lines.

Does this need attention or is sqlite already designed to work without the additional memory fences that are added in the /volatile:ms mode? In the latter case, might it be a good idea disable C4746 via #pragma warning?


  • Visual Studio 2022 -> New Project -> Console App
  • Add sqlite3.c (almalgamtion) to the source files
  • In the configuration drop-down (set to x64 by default), click "Configuration Manager"
    • Active Solution Platform -> "<New...>"
    • ARM64, Copy from x64
    • [OK], [CLOSE]
  • Right Click on Project in the Solution Explorer
    • Properties -> "C/C++" -> Advanced
    • Treat Specific Warnings as Errors: 4746
    • [OK]
  • Compile

(2) By Gunter Hick (gunter_hick) on 2021-11-18 13:34:10 in reply to 1 [source]

Maybe you will get more traffic if you include the exact version of SQLite you are attempting to compile and some of the actual warning messages.