[Bug c/55697] New: Another ice in remove_redundant_iv_tests

[Bug c/55697] New: Another ice in remove_redundant_iv_tests

[dcb314 at hotmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55697

             Bug #: 55697
           Summary: Another ice in remove_redundant_iv_tests
    Classification: Unclassified
           Product: gcc
           Version: 4.8.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: dcb314@hotmail.com


Created attachment 28969
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=28969
C source code

I just tried to compile the package freetds-0.91-5
on gcc-4.8 trunk dated 20121212 on an AMD x86_64 box.

The compiler said

convert.c: In function 'string_to_numeric':
convert.c:1939:1: internal compiler error: in remove_redundant_iv_tests, at
tree-ssa-loop-ivcanon.c:559
 string_to_numeric(const char *instr, const char *pend, CONV_RESULT * cr)
 ^
0xd62045 remove_redundant_iv_tests
    ../../src/trunk/gcc/tree-ssa-loop-ivcanon.c:559
0xd62045 canonicalize_loop_induction_variables
    ../../src/trunk/gcc/tree-ssa-loop-ivcanon.c:951
0xd63018 tree_unroll_loops_completely(bool, bool)
    ../../src/trunk/gcc/tree-ssa-loop-ivcanon.c:1122
0x9e8922 tree_complete_unroll_inner
    ../../src/trunk/gcc/tree-ssa-loop.c:509
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <http://gcc.gnu.org/bugs.html> for instructions.

Preprocessed source code attached. Flag -O3 required.
This looks like a different bug report to # 55208.

[Bug c/55697] Another ice in remove_redundant_iv_tests

[markus at trippelsdorf dot de]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55697

Markus Trippelsdorf <markus at trippelsdorf dot de> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |markus at trippelsdorf dot
                   |                            |de

--- Comment #1 from Markus Trippelsdorf <markus at trippelsdorf dot de> 2012-12-14 21:26:23 UTC ---
Reduced:

markus@x4 tmp % cat test.i
int a[0];
int
fn1 ()
{
    int *b=0;
    int i, j=0;
    do
        {
            int n = *b++;
            for (i = 0; i < 1; ++i)
                n = *b++;
            a[++j] = n - '0';
            b -= 6;
        }
    while (b);
    return 0;
}
markus@x4 tmp % gcc -c -O2 test.i
test.i: In function ‘fn1’:
test.i:3:1: internal compiler error: in remove_redundant_iv_tests, at
tree-ssa-loop-ivcanon.c:559

[Bug c/55697] Another ice in remove_redundant_iv_tests

[markus at trippelsdorf dot de]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55697

--- Comment #2 from Markus Trippelsdorf <markus at trippelsdorf dot de> 2012-12-14 21:35:08 UTC ---
It's a dup of PR55684 and it's already fixed...

[Bug c/55697] Another ice in remove_redundant_iv_tests

[pinskia at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55697

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

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

--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> 2012-12-15 10:29:21 UTC ---
dup.

*** This bug has been marked as a duplicate of bug 55684 ***