[Bug target/60520] stack adjustment are not merged anymore

[hjl.tools at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60520

--- Comment #11 from H.J. Lu <hjl.tools at gmail dot com> ---
Created attachment 32353
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=32353&action=edit
A patch

This patch checks LEAVE and remove stack deallocation.
It removes 5 stack deallocations in cc1plus on Linux/i686.