[Bug c/33017] New: tree check fail for legal code

[Bug c/33017] New: tree check fail for legal code

[dcb314 at hotmail dot com]

I just tried to compile Suse Linux package ddiwrapper-0.2-86
with the GNU C compiler version 4.3 snapshot 20070803.

The compiler said

write_msft.c: In function 'ctl2_alloc_string':
write_msft.c:562: internal compiler error: tree check: expected ssa_name, have
symbol_memory_tag in is_old_name, at tree-into-ssa.c:566
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.

Preprocessed source attached. Flags -O2   -ftree-vectorize -m32 required.


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           Summary: tree check fail for legal code
           Product: gcc
           Version: 4.3.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: dcb314 at hotmail dot com
  GCC host triplet: x86_64-suse-linux


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33017

[Bug c/33017] tree check fail for legal code

[dcb314 at hotmail dot com]

------- Comment #1 from dcb314 at hotmail dot com  2007-08-07 21:43 -------
Created an attachment (id=14037)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=14037&action=view)
C source code


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33017

[Bug tree-optimization/33017] [4.3 Regression] tree check fail for legal code

[pinskia at gcc dot gnu dot org]

-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |pinskia at gcc dot gnu dot
                   |                            |org
          Component|c                           |tree-optimization
            Summary|tree check fail for legal   |[4.3 Regression] tree check
                   |code                        |fail for legal code
   Target Milestone|---                         |4.3.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33017

[Bug tree-optimization/33017] [4.3 Regression] tree check fail for legal code

[pinskia at gcc dot gnu dot org]

------- Comment #2 from pinskia at gcc dot gnu dot org  2007-08-08 09:18 -------
Reducing.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33017

[Bug tree-optimization/33017] [4.3 Regression] tree check fail for legal code

[pinskia at gcc dot gnu dot org]

------- Comment #3 from pinskia at gcc dot gnu dot org  2007-08-08 14:35 -------
Here is a reduced testcase:
int ctl2_encode_string(
 const char *string,
 char **result)
{
    int length;
    static char converted_string[0x104];
    int offset;
    length = strlen(string);
    for(offset = 0; offset < 4; offset++)
      converted_string[length + offset + 2] = 0x57; 
}


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33017

[Bug tree-optimization/33017] [4.3 Regression] tree check fail for legal code

[mmitchel at gcc dot gnu dot org]

-- 

mmitchel at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Priority|P3                          |P1


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33017

[Bug tree-optimization/33017] [4.3 Regression] tree check fail for legal code

[jakub at gcc dot gnu dot org]

-- 

jakub at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot gnu   |jakub at gcc dot gnu dot org
                   |dot org                     |
                URL|                            |http://gcc.gnu.org/ml/gcc-
                   |                            |patches/2007-
                   |                            |09/msg00155.html
             Status|UNCONFIRMED                 |ASSIGNED
     Ever Confirmed|0                           |1
   Last reconfirmed|0000-00-00 00:00:00         |2007-09-03 19:35:25
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33017

[Bug tree-optimization/33017] [4.3 Regression] tree check fail for legal code

[jakub at gcc dot gnu dot org]

------- Comment #4 from jakub at gcc dot gnu dot org  2007-09-04 23:30 -------
Subject: Bug 33017

Author: jakub
Date: Tue Sep  4 23:29:58 2007
New Revision: 128107

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=128107
Log:
        PR tree-optimization/33017
        * tree-data-ref.c (split_constant_offset) <case SSA_NAME>: Don't
        recurse for pure or const function calls.

        * gcc.dg/pr33017.c: New test.

Added:
    trunk/gcc/testsuite/gcc.dg/pr33017.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-data-ref.c


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33017

[Bug tree-optimization/33017] [4.3 Regression] tree check fail for legal code

[jakub at gcc dot gnu dot org]

------- Comment #5 from jakub at gcc dot gnu dot org  2007-09-04 23:35 -------
Fixed.


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jakub at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|                            |FIXED


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33017