[Bug rtl-optimization/44025] Multiple load 0 to register

[steven at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44025

--- Comment #6 from Steven Bosscher <steven at gcc dot gnu.org> 2012-07-24 
15:51:39 UTC ---
(In reply to comment #4)
> The questions are:
> 1, why pre does not do such optimization;

Because PRE (gcse.c) doesn't run at -Os.