[Bug tree-optimization/30375] [4.3 Regression] tree-ssa-dse incorrectly removes struct initialization

[pinskia at gcc dot gnu dot org]

------- Comment #6 from pinskia at gcc dot gnu dot org  2007-01-05 05:29 -------
I am in correct in saying the problem is related to the call but instead it is
related to:
  # MPT.775_180 = VDEF <MPT.775_179(D)>
  info = {};
  # MPT.775_181 = VDEF <MPT.775_180>
  point = {};


They have the same memory tags which causes the new part of DSE to think the
first store of info to be fully redundant which is wrong.


-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Severity|normal                      |blocker


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30375