According to @Amanieu:

I checked and only non-temporal stores have special memory orderings on x86. x86 non-temporal loads work just like normal loads.

Using inline assembly produces suboptimal code, see https://godbolt.org/z/os8bG3Efr.

References:

• Fixes for non-temporal intrinsics #1929 (comment)
• Various Fixes and enhancements in x86 intrinsics #1594 (comment)