[Bug target/58110] Useless GPR push and pop when only xmm registers are used.

[neleai at seznam dot cz]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58110

--- Comment #1 from Ondrej Bilka <neleai at seznam dot cz> ---
Created attachment 30627
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=30627&action=edit
testcase