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

[wschmidt at gcc dot gnu.org]

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

--- Comment #11 from Bill Schmidt <wschmidt at gcc dot gnu.org> ---
I tested #pragma target -mno-optimize-swaps, and it doesn't help.  The only
options that can be specified with #pragma target for Power are listed here: 
https://gcc.gnu.org/onlinedocs/gcc/PowerPC-Function-Attributes.html#PowerPC-Function-Attributes