[Bug c/12934] New: internal compiler error: in loc_descriptor_from_tree, at dwarf2out.c:8780

[Bug c/12934] New: internal compiler error: in loc_descriptor_from_tree, at dwarf2out.c:8780

[jbailey at 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=12934

           Summary: internal compiler error: in loc_descriptor_from_tree, at
                    dwarf2out.c:8780
           Product: gcc
           Version: 3.4
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: jbailey at gnu dot org
                CC: gcc-bugs at gcc dot gnu dot org
 GCC build triplet: ia64-linux
  GCC host triplet: ia64-linux
GCC target triplet: i386-gnu

When compiling glibc for i386-gnu, I get the following error:

i386-gnu-gcc vfprintf.c -c -std=gnu99 -O2 -Wall -Winline -Wstrict-prototypes
-Wwrite-strings -g -Wno-parentheses -mpreferred-stack-boundary=2 
-Wno-uninitialized   -I../include -I.
-I/home/jbailey/Programming/cvstree/glibc/build.libc-hurd/stdio-common -I..
-I../libio -I../hurd
-I/home/jbailey/Programming/cvstree/glibc/build.libc-hurd/hurd/ -I../mach
-I/home/jbailey/Programming/cvstree/glibc/build.libc-hurd/mach/
-I/home/jbailey/Programming/cvstree/glibc/build.libc-hurd -I../sysdeps/i386/elf
-I../sysdeps/mach/hurd/i386 -I../sysdeps/mach/hurd -I../sysdeps/gnu
-I../sysdeps/unix/bsd/bsd4.4 -I../sysdeps/unix/mman -I../sysdeps/mach/i386
-I../sysdeps/mach -I../sysdeps/i386/fpu -I../sysdeps/i386
-I../sysdeps/wordsize-32 -I../sysdeps/ieee754/ldbl-96
-I../sysdeps/ieee754/dbl-64 -I../sysdeps/ieee754/flt-32 -I../sysdeps/unix/bsd
-I../sysdeps/unix/common -I../sysdeps/unix/inet -I../sysdeps/unix
-I../sysdeps/posix -I../sysdeps/ieee754 -I../sysdeps/generic/elf
-I../sysdeps/generic  -D_LIBC_REENTRANT -include ../include/libc-symbols.h 
-D_IO_MTSAFE_IO -o
/home/jbailey/Programming/cvstree/glibc/build.libc-hurd/stdio-common/vfprintf.o
-MD -MP -MF
/home/jbailey/Programming/cvstree/glibc/build.libc-hurd/stdio-common/vfprintf.o.dt
vfprintf.c: In function `_IO_vfprintf':
 
vfprintf.c:1917: internal compiler error: in loc_descriptor_from_tree, at
dwarf2out.c:8780
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.

With the proprocessed source, the bug triggers as:

$ i386-gnu-gcc -O1 -g -c foo.c

-O2 triggers too.

I'll try to test a native compile, or one targetted to i386-linux.  I suspect
this will show up on at least one of those.

[Bug c/12934] internal compiler error: in loc_descriptor_from_tree, at dwarf2out.c:8780

[jbailey at 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=12934



------- Additional Comments From jbailey at gnu dot org  2003-11-07 00:04 -------
Created an attachment (id=5080)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=5080&action=view)
Preprocessed source

Preprocessed source for vfprintf.c

[Bug debug/12934] internal compiler error: in loc_descriptor_from_tree, at dwarf2out.c:8780

[pinskia 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=12934


pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|c                           |debug
           Keywords|                            |ice-on-valid-code


------- Additional Comments From pinskia at gcc dot gnu dot org  2003-11-07 00:21 -------
Just to say this also happens on i686-pc-linux-gnu.

[Bug debug/12934] internal compiler error: in loc_descriptor_from_tree, at dwarf2out.c:8780

[pinskia 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=12934


pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  GCC build triplet|ia64-linux                  |
   GCC host triplet|ia64-linux                  |
 GCC target triplet|i386-gnu                    |i{3,6}86-{linux-,}gnu

[Bug debug/12934] [3.4 regression] ICE with variable sized arrays in loc_descriptor_from_tree, at dwarf2out.c:8780

[reichelt at gcc dot gnu dot org]

------- Additional Comments From reichelt at gcc dot gnu dot org  2003-11-12 14:24 -------
The testcase can be reduced to

===========================================
inline int foo() { return 0; }

void bar()
{
    int buf[foo()];
}
===========================================

which fails on i686-pc-linux-gnu with "gcc -O -g":

bug.c: In function `bar':

bug.c:6: internal compiler error: in loc_descriptor_from_tree, at
dwarf2out.c:8780
Please submit a full bug report, [etc.]

The bug only affects mainline.

According to Phil's regression hunter it appeared between
2003-04-11-trunk (#264) and 2003-04-12-trunk (#265)
(although I had to specify -O2 for the search).


-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |reichelt at gcc dot gnu dot
                   |                            |org
           Severity|normal                      |critical
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|                            |1
           Keywords|                            |monitored
   Last reconfirmed|0000-00-00 00:00:00         |2003-11-12 14:24:59
               date|                            |
            Summary|internal compiler error: in |[3.4 regression] ICE with
                   |loc_descriptor_from_tree, at|variable sized arrays in
                   |dwarf2out.c:8780            |loc_descriptor_from_tree, at
                   |                            |dwarf2out.c:8780
   Target Milestone|---                         |3.4


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12934

[Bug debug/12934] [3.4 regression] ICE with variable sized arrays in loc_descriptor_from_tree, at dwarf2out.c:8780

[reichelt at gcc dot gnu dot org]

------- Additional Comments From reichelt at gcc dot gnu dot org  2003-11-12 14:49 -------
The regression appeared with Zack's patch

http://gcc.gnu.org/ml/gcc-cvs/2003-04/msg00555.html

Zack, could you please have a look? Thanks!


-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |zack at codesourcery dot com


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12934

[Bug debug/12934] [3.4 regression] ICE with variable sized arrays in loc_descriptor_from_tree, at dwarf2out.c:8780

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2003-12-19 06:45 -------
One more for you Zack.

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12934

[Bug debug/12934] [3.4 regression] ICE with variable sized arrays in loc_descriptor_from_tree, at dwarf2out.c:8780

[redi at gcc dot gnu dot org]

------- Additional Comments From redi at gcc dot gnu dot org  2003-12-30 16:14 -------
For the record, this bug is also present on i386-unknown-freebsd4.8, built from
today's mainline:

test.cc: In function `void bar()':
test.cc:6: internal compiler error: in loc_descriptor_from_tree, at dwarf2out.c:8800


Reading specs from
/data/development/jw/gcc3/bin/../lib/gcc/i386-unknown-freebsd4.8/3.4.0/specs
Configured with: /home/jw/src/extcvs/gcc/configure --prefix=/home/jw/gcc3/
--enable-languages=c,c++ --enable-concept-checks --enable-libstdcxx-pch
Thread model: posix
gcc version 3.4.0 20031230 (experimental)


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12934

[Bug debug/12934] [3.4 regression] ICE with variable sized arrays in loc_descriptor_from_tree, at dwarf2out.c:8780

[pinskia at gcc dot gnu dot org]

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
           Severity|critical                    |normal


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12934

[Bug debug/12934] [3.4/3.5 regression] ICE with variable sized arrays in loc_descriptor_from_tree, at dwarf2out.c:8780

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-01-24 05:40 -------
Actually Zack, I do not think this one is really yours, see PR 13815.  The regression happened 
before your change.  It just so happens that your change also causes some other problems.

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12934

[Bug debug/12934] [3.4/3.5 regression] ICE with variable sized arrays in loc_descriptor_from_tree, at dwarf2out.c:8780

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-01-24 05:41 -------
*** Bug 13815 has been marked as a duplicate of this bug. ***

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |jakub at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12934

[Bug debug/12934] [3.4/3.5 regression] ICE with variable sized arrays in loc_descriptor_from_tree, at dwarf2out.c:8780

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-02-17 16:11 -------
Patch here: <http://gcc.gnu.org/ml/gcc-patches/2004-02/msg01514.html>.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |patch


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12934

[Bug debug/12934] [3.4/3.5 regression] ICE with variable sized arrays in loc_descriptor_from_tree, at dwarf2out.c:8780

[cvs-commit at gcc dot gnu dot org]

------- Additional Comments From cvs-commit at gcc dot gnu dot org  2004-02-18 11:11 -------
Subject: Bug 12934

CVSROOT:	/cvs/gcc
Module name:	gcc
Changes by:	pbrook@gcc.gnu.org	2004-02-18 11:11:25

Modified files:
	gcc            : ChangeLog 
	gcc/testsuite  : ChangeLog 
	gcc/testsuite/gcc.dg/debug: debug-7.c 

Log message:
	Fix previous checkin.
	PR debug/12934
	* dwarf2out.c (loc_descriptor_from_tree): Handle
	EXPR_WITH_FILE_LOCATION.
	testsuite/
	* gcc.dg/debug/debug-7.c: New test.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=2.2819&r2=2.2820
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&r1=1.3514&r2=1.3515
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.dg/debug/debug-7.c.diff?cvsroot=gcc&r1=1.1&r2=1.2



-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12934

[Bug debug/12934] [3.4/3.5 regression] ICE with variable sized arrays in loc_descriptor_from_tree, at dwarf2out.c:8780

[cvs-commit at gcc dot gnu dot org]

------- Additional Comments From cvs-commit at gcc dot gnu dot org  2004-02-18 11:23 -------
Subject: Bug 12934

CVSROOT:	/cvs/gcc
Module name:	gcc
Branch: 	csl-arm-branch
Changes by:	pbrook@gcc.gnu.org	2004-02-18 11:23:28

Modified files:
	gcc            : ChangeLog dwarf2out.c 
	gcc/testsuite  : ChangeLog 

Log message:
	PR debug/12934
	* dwarf2out.c (loc_descriptor_from_tree): Handle
	EXPR_WITH_FILE_LOCATION.
	testsuite/
	* gcc.dg/debug/debug-7.c: New test.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&only_with_tag=csl-arm-branch&r1=2.1568.2.33&r2=2.1568.2.34
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/dwarf2out.c.diff?cvsroot=gcc&only_with_tag=csl-arm-branch&r1=1.461.2.2&r2=1.461.2.3
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&only_with_tag=csl-arm-branch&r1=1.3146.2.9&r2=1.3146.2.10



-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12934

[Bug debug/12934] [3.4/3.5 regression] ICE with variable sized arrays in loc_descriptor_from_tree, at dwarf2out.c:8780

[cvs-commit at gcc dot gnu dot org]

------- Additional Comments From cvs-commit at gcc dot gnu dot org  2004-02-18 11:25 -------
Subject: Bug 12934

CVSROOT:	/cvs/gcc
Module name:	gcc
Branch: 	gcc-3_4-branch
Changes by:	pbrook@gcc.gnu.org	2004-02-18 11:24:51

Modified files:
	gcc            : ChangeLog dwarf2out.c 
	gcc/testsuite  : ChangeLog 
Added files:
	gcc/testsuite/gcc.dg/debug: debug-7.c 

Log message:
	PR debug/12934
	* dwarf2out.c (loc_descriptor_from_tree): Handle
	EXPR_WITH_FILE_LOCATION.
	testsuite/
	* gcc.dg/debug/debug-7.c: New test.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=2.2326.2.211&r2=2.2326.2.212
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/dwarf2out.c.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=1.478.2.4&r2=1.478.2.5
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=1.3389.2.88&r2=1.3389.2.89
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.dg/debug/debug-7.c.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=NONE&r2=1.2.2.1



-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12934

[Bug debug/12934] [3.4/3.5 regression] ICE with variable sized arrays in loc_descriptor_from_tree, at dwarf2out.c:8780

[pbrook at gcc dot gnu dot org]

------- Additional Comments From pbrook at gcc dot gnu dot org  2004-02-18 11:26 -------
Fixed. 

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12934