[Bug rtl-optimization/54540] [4.8 regression] postreload incorrectly simplifies stack adjustment into constant load into SP

[rearnsha at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54540

--- Comment #3 from Richard Earnshaw <rearnsha at gcc dot gnu.org> 2012-09-14 
17:10:53 UTC ---
Author: rearnsha
Date: Fri Sep 14 17:10:45 2012
New Revision: 191307

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=191307
Log:
    PR target/54516
    PR rtl-optimization/54540
    * reload.c (find_dummy_reload): Don't use OUT as a reload reg
    for IN if it overlaps a fixed register.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/reload.c