[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 #1 from Richard Earnshaw <rearnsha at gcc dot gnu.org> 2012-09-10 
12:46:29 UTC ---
Created attachment 28160
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=28160
Testcase (not reduced)