[Bug tree-optimization/35472] [4.3/4.4 Regression] tree DSE is broken

[rguenth at gcc dot gnu dot org]

--- Comment #2 from rguenth at gcc dot gnu dot org  2008-03-05 14:56 ---
Patch in testing.


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rguenth at gcc dot gnu dot org changed:

   What|Removed |Added

   Priority|P3  |P1
   Target Milestone|--- |4.3.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35472

[Bug tree-optimization/35472] [4.3/4.4 Regression] tree DSE is broken

[rguenth at gcc dot gnu dot org]

--- Comment #1 from rguenth at gcc dot gnu dot org  2008-03-05 14:45 ---
We have

  # VUSE 
  p.0_1 = p;
  # a_11 = VDEF 
  # b_12 = VDEF 
  # SMT.5_13 = VDEF 
  *p.0_1 = a;
  # a_14 = VDEF 
  # b_15 = VDEF 
  # SMT.5_16 = VDEF 
  *p.0_1 = b;

This is actually a case of PR34459 and it is its testcase that actually
fails with the fix for PR27799.


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rguenth at gcc dot gnu dot org changed:

   What|Removed |Added

  BugsThisDependsOn||34459


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35472

[Bug tree-optimization/35472] [4.3/4.4 Regression] tree DSE is broken

[rguenth at gcc dot gnu dot org]

-- 

rguenth at gcc dot gnu dot org changed:

   What|Removed |Added

 AssignedTo|unassigned at gcc dot gnu   |rguenth at gcc dot gnu dot
   |dot org |org
 Status|UNCONFIRMED |ASSIGNED
 Ever Confirmed|0   |1
   Last reconfirmed|-00-00 00:00:00 |2008-03-05 13:19:22
   date||


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35472