[Bug target/66120] __builtin_add/sub_overflow for int32_t emit poor code on ARM

[rearnsha at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66120

--- Comment #3 from Richard Earnshaw <rearnsha at gcc dot gnu.org> ---
That's what I meant.  Still can't find any info on them in md.texi, though!