[Bug c/12510] New: Compilation failing with internal error in final_scan_insn

[Bug c/12510] New: Compilation failing with internal error in final_scan_insn

[lskovlun at image dot dk]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12510

           Summary: Compilation failing with internal error in
                    final_scan_insn
           Product: gcc
           Version: 3.3.2
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: lskovlun at image dot dk
                CC: gcc-bugs at gcc dot gnu dot org

Compilation of the attached file fails with gcc 3.3.2. 2.95 works fine.

gcc -v yields the following output (it's the packaged version from Debian
GNU/Linux):

Reading specs from /usr/lib/gcc-lib/i486-linux/3.3.2/specs
Configured with: ../src/configure -v
--enable-languages=c,c++,java,f77,pascal,objc,ada,treelang --prefix=/usr
--mandir=/usr/share/man --infodir=/usr/share/info
--with-gxx-include-dir=/usr/include/c++/3.3 --enable-shared --with-system-zlib
--enable-nls --without-included-gettext --enable-__cxa_atexit
--enable-clocale=gnu --enable-debug --enable-java-gc=boehm
--enable-java-awt=xlib --enable-objc-gc i486-linux
Thread model: posix
gcc version 3.3.2 20030908 (Debian prerelease)

The error message reads:

lars@hydra:~/praat/fon$ gcc -DUNIX -I /usr/X11R6/include -Wimplicit
-Wreturn-type -Wunused -Wuninitialized -O -I ../sys -I ../dwsys -I ../dwtools -I
../LPC -I ../fon   -c -o ManipulationEditor.o ManipulationEditor.c
ManipulationEditor.c: In function `cb_addPitchPointAtSlice':
ManipulationEditor.c:298: internal compiler error: in final_scan_insn, at
final.c:2799
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.

[Bug c/12510] Compilation failing with internal error in final_scan_insn

[lskovlun at image dot dk]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12510



------- Additional Comments From lskovlun at image dot dk  2003-10-04 20:06 -------
Created an attachment (id=4889)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=4889&action=view)
bzip2'ed preprocessed failing source file

[Bug optimization/12510] [3.3 regression] ICE in final_scan_insn

[ebotcazou at gcc dot gnu dot org]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12510


ebotcazou at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Severity|normal                      |critical
             Status|UNCONFIRMED                 |NEW
          Component|c                           |optimization
     Ever Confirmed|                            |1
  GCC build triplet|                            |i486-pc-linux-gnu
   GCC host triplet|                            |i486-pc-linux-gnu
 GCC target triplet|                            |i486-pc-linux-gnu
   Last reconfirmed|0000-00-00 00:00:00         |2003-10-04 20:19:14
               date|                            |
            Summary|Compilation failing with    |[3.3 regression] ICE in
                   |internal error in           |final_scan_insn
                   |final_scan_insn             |
   Target Milestone|---                         |3.3.2


------- Additional Comments From ebotcazou at gcc dot gnu dot org  2003-10-04 20:19 -------
Confirmed on the 3.3 branch, a regression from GCC 3.2.3.

[Bug optimization/12510] [3.3 regression] ICE in final_scan_insn

[reichelt at gcc dot gnu dot org]

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12510



------- Additional Comments From reichelt at gcc dot gnu dot org  2003-10-05 21:03 -------
Here's a reduced example that crashes on i686-pc-linux-gnu
when compiled with "-O" (it *does* compile with "-O2").

=======================================
void foo (double);

void bar (double x, double y)
{
    foo (x);
    if (y) x = y ? 0 : 1/y;
    else if (y) x = y < 1 ? 1 : y;
    else x = 1/y < 1 ? 1 : x;
    foo (x);
}
=======================================

According to Phil's regression hunter, the regression was introduced in
February:
: Search converges between 2003-02-26-3.3 (#68) and 2003-02-28-3.3 (#69).

[Bug optimization/12510] [3.3 regression] ICE in final_scan_insn

[ebotcazou at gcc dot gnu dot org]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12510


ebotcazou at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot gnu   |ebotcazou at gcc dot gnu dot
                   |dot org                     |org
             Status|NEW                         |ASSIGNED


------- Additional Comments From ebotcazou at gcc dot gnu dot org  2003-10-06 06:54 -------
Fixing.

[Bug optimization/12510] [3.3 regression] ICE in final_scan_insn

[mihai_adrian at olteniaonline dot ro]

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12510



------- Additional Comments From mihai_adrian at olteniaonline dot ro  2003-10-06 07:00 -------
Subject: Re:  [3.3 regression] ICE in
	final_scan_insn

On Mon, 2003-10-06 at 09:54, ebotcazou at gcc dot gnu dot org wrote:
> PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.
> 
> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12510
> 
> 
> ebotcazou at gcc dot gnu dot org changed:
> 
>            What    |Removed                     |Added
> ----------------------------------------------------------------------------
>          AssignedTo|unassigned at gcc dot gnu   |ebotcazou at gcc dot gnu dot
>                    |dot org                     |org
>              Status|NEW                         |ASSIGNED
> 
> 
> ------- Additional Comments From ebotcazou at gcc dot gnu dot org  2003-10-06 06:54 -------
> Fixing.

[Bug optimization/12510] [3.3 regression] ICE in final_scan_insn

[ebotcazou at gcc dot gnu dot org]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12510


ebotcazou at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |mark at codesourcery dot com
            Version|3.3.2                       |3.3.1


------- Additional Comments From ebotcazou at gcc dot gnu dot org  2003-10-07 20:58 -------
Patch: http://gcc.gnu.org/ml/gcc-patches/2003-10/msg00538.html

[Bug optimization/12510] [3.3 regression] ICE in final_scan_insn

[mmitchel at gcc dot gnu dot org]

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12510



------- Additional Comments From mmitchel at gcc dot gnu dot org  2003-10-08 05:21 -------
I'd actually feel more comfortable with Jakub's patch since it's received a fair
amount of testing.  I'd approve a backport of his patch.  Are you willing to
test that out?

[Bug optimization/12510] [3.3 regression] ICE in final_scan_insn

[ebotcazou at gcc dot gnu dot org]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12510



------- Additional Comments From ebotcazou at gcc dot gnu dot org  2003-10-08 05:33 -------
They are equivalent, but I understand your position so I'll do the backport.

[Bug optimization/12510] [3.3 regression] ICE in final_scan_insn

[ebotcazou at gcc dot gnu dot org]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12510



------- Additional Comments From ebotcazou at gcc dot gnu dot org  2003-10-09 05:01 -------
Backported patch: http://gcc.gnu.org/ml/gcc-patches/2003-10/msg00636.html

[Bug optimization/12510] [3.3 regression] ICE in final_scan_insn

[mmitchel at gcc dot gnu dot org]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12510



------- Additional Comments From mmitchel at gcc dot gnu dot org  2003-10-09 18:50 -------
Eric, please check this in and close the PR.  Thanks!

[Bug optimization/12510] [3.3 regression] ICE in final_scan_insn

[cvs-commit at gcc dot gnu dot org]

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12510



------- Additional Comments From cvs-commit at gcc dot gnu dot org  2003-10-09 20:53 -------
Subject: Bug 12510

CVSROOT:	/cvs/gcc
Module name:	gcc
Branch: 	gcc-3_3-branch
Changes by:	ebotcazou@gcc.gnu.org	2003-10-09 20:53:40

Modified files:
	gcc            : ChangeLog toplev.c 
	gcc/testsuite  : ChangeLog 
Added files:
	gcc/testsuite/gcc.dg: 20031009-1.c 

Log message:
	PR optimization/12510
	Backport from mainline:
	
	2003-09-08  Jakub Jelinek  <jakub@redhat.com>
	
	* toplev.c (rest_of_compilation): Call split_all_insns before
	regstack if optimizing but not scheduling after reload.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-3_3-branch&r1=1.16114.2.775&r2=1.16114.2.776
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/toplev.c.diff?cvsroot=gcc&only_with_tag=gcc-3_3-branch&r1=1.690.2.22&r2=1.690.2.23
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-3_3-branch&r1=1.2261.2.303&r2=1.2261.2.304
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.dg/20031009-1.c.diff?cvsroot=gcc&only_with_tag=gcc-3_3-branch&r1=NONE&r2=1.1.2.1

[Bug optimization/12510] [3.3 regression] ICE in final_scan_insn

[ebotcazou at gcc dot gnu dot org]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12510


ebotcazou at gcc dot gnu dot org changed:

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


------- Additional Comments From ebotcazou at gcc dot gnu dot org  2003-10-09 21:02 -------
Backported patch applied.

[Bug optimization/12510] [3.3 regression] ICE in final_scan_insn

[ebotcazou at gcc dot gnu dot org]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12510


ebotcazou at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |skon at kr dot FreeBSD dot
                   |                            |org


------- Additional Comments From ebotcazou at gcc dot gnu dot org  2003-10-10 08:57 -------
*** Bug 12565 has been marked as a duplicate of this bug. ***

[Bug optimization/12510] [3.3 regression] ICE in final_scan_insn

[ebotcazou at gcc dot gnu dot org]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12510


ebotcazou at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |barnett2 at slb dot com


------- Additional Comments From ebotcazou at gcc dot gnu dot org  2003-10-15 14:37 -------
*** Bug 12621 has been marked as a duplicate of this bug. ***