https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65375
--- Comment #1 from kugan at gcc dot gnu.org ---
arm-none-linux-gnueabi-gcc -O2 -ffast-math -unsafe-math-optimisations
-mfpu=neon produces just:
hello_vst2:
@ args = 0, pretend = 0, frame = 0
@ frame_needed = 0, uses_anonymous_args = 0
@ link register save eliminated.
vld2.32 {d16-d19}, [r1]
vst2.32 {d16-d19}, [r0]
bx
