[Bug tree-optimization/32139] [4.1 Regression] ICE in mark_operand_necessary

[uros at gcc dot gnu dot org]

--- Comment #3 from uros at gcc dot gnu dot org  2009-03-25 07:59 ---
Subject: Bug 32139

Author: uros
Date: Wed Mar 25 07:58:55 2009
New Revision: 145052

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=145052
Log:
PR c/27898
* gcc.dg/pr27898.c: New test.

PR tree-optimization/32139
* gcc.c-torture/compile/pr32139.c: New test.


Added:
trunk/gcc/testsuite/gcc.c-torture/compile/pr32139.c
trunk/gcc/testsuite/gcc.dg/pr27898.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32139

[Bug tree-optimization/32139] [4.1 Regression] ICE in mark_operand_necessary

[jsm28 at gcc dot gnu dot org]

--- Comment #2 from jsm28 at gcc dot gnu dot org  2008-07-04 16:07 ---
Closing 4.1 branch.


-- 

jsm28 at gcc dot gnu dot org changed:

   What|Removed |Added

 Status|NEW |RESOLVED
 Resolution||FIXED
   Target Milestone|4.1.3   |4.2.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32139

[Bug tree-optimization/32139] [4.1 Regression] ICE in mark_operand_necessary

[rguenth at gcc dot gnu dot org]

--- Comment #1 from rguenth at gcc dot gnu dot org  2008-01-13 14:36 ---
./cc1 -quiet t.c -O2
t.c: In function ‘test’:
t.c:6: internal compiler error: tree check: expected ssa_name, have var_decl in
mark_operand_necessary, at tree-ssa-pre.c:2460
Please submit a full bug report,
with preprocessed source if appropriate.
See http://gcc.gnu.org/bugs.html> for instructions.

we have unrenamed VOPs on code inserted by PRE.

#   TMT.7D.1301 = V_MAY_DEF ;
D.1324_9 = foo ()


4.2 ICEs once you try to do -fdump-tree-all-vops:

t.c: In function ‘test’:
t.c:6: internal compiler error: in stmt_ann, at tree-flow-inline.h:173
Please submit a full bug report,
with preprocessed source if appropriate.
See http://gcc.gnu.org/bugs.html> for instructions.
For Debian GNU/Linux specific bug reporting instructions,
see .

note that VOPs are missing from the indirect function call before PRE:

:;
  #   VUSE ;
  #   VUSE ;
  #   VUSE ;
  #   VUSE ;
  #   VUSE ;
  a_6 = foo ();

  # a_4 = PHI ;
  # iftmp.1_2 = PHI ;
:;
  b_9 = iftmp.1_2 ();

(likewise in the 4.1 and 4.3 case).


-- 

rguenth at gcc dot gnu dot org changed:

   What|Removed |Added

  BugsThisDependsOn|34768   |
 Status|UNCONFIRMED |NEW
 Ever Confirmed|0   |1
   Keywords||alias, ice-on-valid-code
  Known to fail||4.1.3
  Known to work||4.0.4 4.2.0
   Last reconfirmed|-00-00 00:00:00 |2008-01-13 14:36:09
   date||


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32139

[Bug tree-optimization/32139] [4.1 Regression] ICE in mark_operand_necessary

[pinskia at gcc dot gnu dot org]

-- 

pinskia at gcc dot gnu dot org changed:

   What|Removed |Added

   Target Milestone|--- |4.1.3


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32139