[Bug bootstrap/15836] New: ICE in genmodes.c:746 (-fprofile-generate)

[Bug bootstrap/15836] New: ICE in genmodes.c:746 (-fprofile-generate)

[rguenth at tat dot physik dot uni-tuebingen dot de]

During profiledbootstrap the compiler ICEs in genmodes.c:746.

See http://gcc.gnu.org/ml/gcc/2004-06/msg00238.html for report and first analysis.

-- 
           Summary: ICE in genmodes.c:746 (-fprofile-generate)
           Product: gcc
           Version: 3.5.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: bootstrap
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: rguenth at tat dot physik dot uni-tuebingen dot de
                CC: gcc-bugs at gcc dot gnu dot org
 GCC build triplet: ia64-linux-gnu
  GCC host triplet: ia64-linux-gnu
GCC target triplet: ia64-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15836

[Bug target/15836] ICE in genmodes.c:746 (-fprofile-generate)

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-06-05 18:01 -------
Can you attach the preprocessed source?

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
OtherBugsDependingO|                            |13882
              nThis|                            |
          Component|bootstrap                   |target
           Keywords|                            |build, ice-on-valid-code


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15836

[Bug target/15836] ICE in genmodes.c:746 (-fprofile-generate)

[rguenth at tat dot physik dot uni-tuebingen dot de]

------- Additional Comments From rguenth at tat dot physik dot uni-tuebingen dot de  2004-06-05 18:17 -------
Created an attachment (id=6474)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=6474&action=view)
preprocessed source

Here it is.

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15836

[Bug target/15836] ICE in genmodes.c:746 (-fprofile-generate)

[belyshev at lubercy dot com]

------- Additional Comments From belyshev at lubercy dot com  2004-06-05 19:08 -------
Created an attachment (id=6475)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=6475&action=view)
small testcase (228 bytes)

use '-O1 -fprofile-generate'

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15836

[Bug target/15836] ICE in genmodes.c:746 (-fprofile-generate)

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-06-05 19:14 -------
Here is a slightly different reduced testcase:
extern void qsort ();
void calc_wider_mode (void)
{
  unsigned int c;
  for (c = 0; c < 10; c++)
    if (c != 0)
      qsort ();
}

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|                            |1
   Last reconfirmed|0000-00-00 00:00:00         |2004-06-05 19:14:51
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15836

[Bug target/15836] ICE in genmodes.c:746 (-fprofile-generate)

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-06-05 19:22 -------
Here is my small testcase without loops (but with gotos):
void t();
void t1 ()
{
  int c = 0;
  goto lc;
lb: if (c != 0) {t();}
lc: if ((c+=1) <= 9) goto lb;
}

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15836

[Bug target/15836] ICE in genmodes.c:746 (-fprofile-generate)

[rguenth at tat dot physik dot uni-tuebingen dot de]

------- Additional Comments From rguenth at tat dot physik dot uni-tuebingen dot de  2004-06-07 13:25 -------
Oh, this is a regression to 3.4.0, btw.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
      Known to work|                            |3.4.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15836

[Bug target/15836] ICE in genmodes.c:746 (-fprofile-generate)

[wilson at gcc dot gnu dot org]

------- Additional Comments From wilson at gcc dot gnu dot org  2004-08-16 22:03 -------
I reproduced this problem a week ago, along with 16490.  I first fixed 16490,
and then tried a profiledbootstrap again, and this time it worked, so there was
only one bug, and it was the same bug reported in 16490.

*** This bug has been marked as a duplicate of 16490 ***

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |DUPLICATE


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15836