[Bug optimization/12662] [tree-ssa] ICE in cprop_into_phis, at tree-ssa-dom.c:1557

[dberlin at gcc dot gnu dot org]

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12662


dberlin at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|                            |1
   Last reconfirmed|0000-00-00 00:00:00         |2003-10-17 23:29:36
               date|                            |


------- Additional Comments From dberlin at gcc dot gnu dot org  2003-10-17 23:29 -------
This is a Garbage Collection problem, because the BB annotations aren't marked, and thus, the phi 
nodes don't get marked. 

Because we push context in PRE (and never collect anywhere else in tree-ssa), only phi nodes PRE 
creates get collected.

Zdenek has patches to do proper marking, which should fix this.