[Bug target/47192] m68k target - gcc uses stack frame after it has been unlinked when compiling with -Os

[law at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=47192

--- Comment #3 from Jeffrey A. Law <law at gcc dot gnu.org> ---
Author: law
Date: Thu Nov 17 23:39:08 2016
New Revision: 242575

URL: https://gcc.gnu.org/viewcvs?rev=242575&root=gcc&view=rev
Log:
        PR target/47192
        * config/m68k/m68k.c (m68k_expand_epilogue): Emit a scheduling
        barrier prior to deallocating the stack.

        PR target/47192
        * gcc.target/m68k/pr47192.c: New test.

Added:
    trunk/gcc/testsuite/gcc.target/m68k/pr47192.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/m68k/m68k.c
    trunk/gcc/testsuite/ChangeLog