[Bug bootstrap/15737] New: <built-in>:1: internal compiler error: in ten_to_ptwo, at real.c:2012

[Bug bootstrap/15737] New: <built-in>:1: internal compiler error: in ten_to_ptwo, at real.c:2012

[danglin at gcc dot gnu dot org]

In stage2:

./xgcc -B./ -B/home/dave/opt/gnu/gcc/gcc-3.5.0/hppa-linux/bin/ -isystem /home/da
ve/opt/gnu/gcc/gcc-3.5.0/hppa-linux/include -isystem /home/dave/opt/gnu/gcc/gcc-
3.5.0/hppa-linux/sys-include -L/home/dave/gnu/gcc-3.5/objdir/gcc/../ld -O2 -DIN_
GCC    -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -Wold-s
tyle-definition  -isystem ./include  -I. -I. -I../../gcc/gcc -I../../gcc/gcc/. -
I../../gcc/gcc/../include -I../../gcc/gcc/../libcpp/include -I../../gcc/gcc/../l
ibbanshee/libcompat -I../../gcc/gcc/../libbanshee -I../../gcc/gcc/../libbanshee/
points-to   -g0 -finhibit-size-directive -fno-inline-functions -fno-exceptions -
fno-zero-initialized-in-bss -fno-unit-at-a-time  \
   -c ../../gcc/gcc/crtstuff.c -DCRT_BEGIN \
  -o crtbegin.o
<built-in>:1: internal compiler error: in ten_to_ptwo, at real.c:2012

-- 
           Summary: <built-in>:1: internal compiler error: in ten_to_ptwo,
                    at real.c:2012
           Product: gcc
           Version: 3.5.0
            Status: UNCONFIRMED
          Severity: critical
          Priority: P2
         Component: bootstrap
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: danglin at gcc dot gnu dot org
                CC: gcc-bugs at gcc dot gnu dot org
 GCC build triplet: hppa-unknown-linux-gnu
  GCC host triplet: hppa-unknown-linux-gnu
GCC target triplet: hppa-unknown-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15737

[Bug bootstrap/15737] <built-in>:1: internal compiler error: in ten_to_ptwo, at real.c:2012

[pinskia at gcc dot gnu dot org]

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |ice-on-valid-code, wrong-
                   |                            |code
   Target Milestone|---                         |3.5.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15737

[Bug bootstrap/15737] [3.5 Regression] <built-in>:1: internal compiler error: in ten_to_ptwo, at real.c:2012

[pinskia at gcc dot gnu dot org]

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|<built-in>:1: internal      |[3.5 Regression] <built-
                   |compiler error: in          |in>:1: internal compiler
                   |ten_to_ptwo, at real.c:2012 |error: in ten_to_ptwo, at
                   |                            |real.c:2012


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15737

[Bug bootstrap/15737] [3.5 Regression] <built-in>:1: internal compiler error: in ten_to_ptwo, at real.c:2012

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-05-30 20:33 -------
I wonder if the following patch caused it (it has a wrong date on it too):
2004-05-25  Paolo Bonzini  <bonzini@gnu.org>

        * combine.c (gen_binary): Remove.
        (known_cond, simplify_shift_const
        find_split_point, combine_simplify_rtx,
        simplify_if_then_else, simplify_set,
        simplify_logical, expand_field_assignment,
        extract_left_shift, force_to_mode,
        if_then_else_cond, apply_distributive_law,
        simplify_and_const_int, simplify_shift_const,
        gen_lowpart_for_combine, simplify_comparison,
        reversed_comparison): Replace with
        simplify_gen_binary, simplify_gen_relational or
        distribute_and_simplify_rtx.
        (distribute_and_simplify_rtx): New function.
        * simplify-rtx.c (simplify_binary_operation):
        Use nonzero_bits to simplify ANDs where we are
        turning off bits already known to be off in OP0.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |bonzini at gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15737

[Bug bootstrap/15737] [3.5 Regression] <built-in>:1: internal compiler error: in ten_to_ptwo, at real.c:2012

[dave at hiauly1 dot hia dot nrc dot ca]

------- Additional Comments From dave at hiauly1 dot hia dot nrc dot ca  2004-05-30 21:14 -------
Subject: Re:  [3.5 Regression] <built-in>:1: internal com

> I wonder if the following patch caused it (it has a wrong date on it too):
> 2004-05-25  Paolo Bonzini  <bonzini@gnu.org>
> 
>         * combine.c (gen_binary): Remove.

Possibly.  My last success full build was LAST_UPDATED: Wed May 26 21:40:20
UTC 2004.  This patch was applied on 27 May 2004 08:29:19 -0000.

Dave


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15737

[Bug bootstrap/15737] [3.5 Regression] <built-in>:1: internal compiler error: in ten_to_ptwo, at real.c:2012

[paolo dot bonzini at polimi dot it]

------- Additional Comments From paolo dot bonzini at polimi dot it  2004-05-31 06:49 -------
Subject: Re:  [3.5 Regression] <built-in>:1: internal
 compiler error: in ten_to_ptwo, at real.c:2012

Please attach a preprocessed testcase.  In the meanwhile, I reverted the 
patch.

Paolo



-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15737

[Bug bootstrap/15737] [3.5 Regression] <built-in>:1: internal compiler error: in ten_to_ptwo, at real.c:2012

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-05-31 13:32 -------
Paolo, the preprocessed source will not help you as this is being compiled with stage2.

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15737

[Bug bootstrap/15737] [3.5 Regression] <built-in>:1: internal compiler error: in ten_to_ptwo, at real.c:2012

[paolo dot bonzini at polimi dot it]

------- Additional Comments From paolo dot bonzini at polimi dot it  2004-05-31 13:42 -------
Subject: Re:  [3.5 Regression] <built-in>:1: internal
 compiler error: in ten_to_ptwo, at real.c:2012

> Paolo, the preprocessed source will not help you as this is being compiled with stage2.

Oh, right, so it's a miscompilation and not an ice-on-valid.  Anyway, 
I've reverted the patch.  I hope that Eric Botcazou can provide me with 
a testcase because the cleanup in that patch is quite desirable.

I suspect the bug is in the only non-trivial change in the patch, the 
factoring of the new function distribute_and_simplify_rtx.  In 
particular, it may not have shown on i686-pc-linux-gnu because it has no 
AND-with-complement instruction (and on PPC because of some combiner 
bogosity?!?).

Paolo



-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15737

[Bug bootstrap/15737] [3.5 Regression] <built-in>:1: internal compiler error: in ten_to_ptwo, at real.c:2012

[dave at hiauly1 dot hia dot nrc dot ca]

------- Additional Comments From dave at hiauly1 dot hia dot nrc dot ca  2004-05-31 15:34 -------
Subject: Re:  [3.5 Regression] <built-in>:1: internal com

> Subject: Re:  [3.5 Regression] <built-in>:1: internal
>  compiler error: in ten_to_ptwo, at real.c:2012
> 
> Please attach a preprocessed testcase.  In the meanwhile, I reverted the 
> patch.

I did confirm last night that that the suspected patch introduced the
build ICE.

Dave


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15737