[Bug target/91275] __builtin_crypto_vpmsumd gives different results -O[123] vs -O0

[cand at gmx dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91275

--- Comment #9 from Lauri Kasanen <cand at gmx dot com> ---
Can -mno-optimize-swaps be used per-function, in the code via some pragma?
Alternatively, does calling the instruction via inline asm prevent the
swapping?