http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42893
Jeffrey A. Law <law at redhat dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
CC| |law at redhat dot com
Resolution| |FIXED
Target Milestone|4.3.6 |4.6.0
--- Comment #10 from Jeffrey A. Law <law at redhat dot com> 2011-01-27 02:27:36
UTC ---
DSE1 removes tui_refreshing_registers = 1 as it's a dead store.
DOM2 then removes tui_refreshing_registers = 0 because it's able to prove the
memory location already holds the value 0.
That ultimately leaves an empty function as we leave the tree-ssa optimizers,
which is precisely what we want.
