[Bug target/106187] armhf: Miscompilation at O2 level (O0 / O1 are working)

[rearnsha at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106187

--- Comment #19 from Richard Earnshaw <rearnsha at gcc dot gnu.org> ---
Hmm, I'm not sure that makes sense to me. AFAICT highway requires an Arm CPU
with Neon, but the default compiler flags that you posted (-mthumb
-march=armv7-a+fp) does not provide that.