[Bug target/63596] Saving of GPR/FPRs for stdarg even though the variable argument is not used

[jiwang at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63596

--- Comment #4 from Jiong Wang <jiwang at gcc dot gnu.org> ---
A patch set which clean up variable argument support on AArch64 has been sent
for review

https://gcc.gnu.org/ml/gcc-patches/2016-05/msg00508.html